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-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
695 libs-y += drivers/mtd/spi/
696 libs-y += drivers/net/
697 libs-y += drivers/net/phy/
698 libs-y += drivers/power/ \
699 drivers/power/domain/ \
700 drivers/power/fuel_gauge/ \
702 drivers/power/pmic/ \
703 drivers/power/battery/ \
704 drivers/power/regulator/
705 libs-y += drivers/spi/
706 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
707 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
708 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
709 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
710 libs-y += drivers/serial/
711 libs-y += drivers/usb/dwc3/
712 libs-y += drivers/usb/common/
713 libs-y += drivers/usb/emul/
714 libs-y += drivers/usb/eth/
715 libs-y += drivers/usb/gadget/
716 libs-y += drivers/usb/gadget/udc/
717 libs-y += drivers/usb/host/
718 libs-y += drivers/usb/musb/
719 libs-y += drivers/usb/musb-new/
720 libs-y += drivers/usb/phy/
721 libs-y += drivers/usb/ulpi/
725 libs-$(CONFIG_API) += api/
726 libs-$(CONFIG_HAS_POST) += post/
727 libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
728 libs-$(CONFIG_UT_ENV) += test/env/
729 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
731 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
733 libs-y := $(sort $(libs-y))
735 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
737 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
739 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
741 u-boot-init := $(head-y)
742 u-boot-main := $(libs-y)
746 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
747 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
749 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
751 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
753 ifdef CONFIG_CC_COVERAGE
754 KBUILD_CFLAGS += --coverage
755 PLATFORM_LIBGCC += -lgcov
759 export PLATFORM_LIBGCC
761 # Special flags for CPP when processing the linker script.
762 # Pass the version down so we can handle backwards compatibility
765 -include $(srctree)/include/u-boot/u-boot.lds.h \
767 $(shell $(LD) --version | \
768 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
770 #########################################################################
771 #########################################################################
773 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
775 @actual=`wc -c $@ | awk '{print $$1}'`; \
776 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
777 if test $$actual -gt $$limit; then \
778 echo "$@ exceeds file size limit:" >&2 ; \
779 echo " limit: $$limit bytes" >&2 ; \
780 echo " actual: $$actual bytes" >&2 ; \
781 echo " excess: $$((actual - limit)) bytes" >&2; \
788 # Statically apply RELA-style relocations (currently arm64 only)
789 # This is useful for arm64 where static relocation needs to be performed on
790 # the raw binary, but certain simulators only accept an ELF file (but don't
791 # do the relocation).
792 ifneq ($(CONFIG_STATIC_RELA),)
793 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
795 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
796 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
797 tools/relocate-rela $(2) $(3) $$start $$end
802 # Always append ALL so that arch config.mk's can add custom ones
803 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
805 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
806 ifeq ($(CONFIG_SPL_FSL_PBL),y)
807 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
809 ifneq ($(CONFIG_SECURE_BOOT), y)
810 # For Secure Boot The Image needs to be signed and Header must also
811 # be included. So The image has to be built explicitly
812 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
815 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
816 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
817 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
819 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
820 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
822 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
825 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
826 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
827 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
828 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
830 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
831 ifneq ($(CONFIG_SPL_TARGET),)
832 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
834 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
835 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
836 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
838 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
839 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
842 # Build a combined spl + u-boot image for sunxi
843 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
844 ALL-y += u-boot-sunxi-with-spl.bin
847 # enable combined SPL/u-boot/dtb rules for tegra
848 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
849 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
850 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
853 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
855 # Add optional build target if defined in board/cpu/soc headers
856 ifneq ($(CONFIG_BUILD_TARGET),)
857 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
860 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
861 ALL-y += init_sp_bss_offset_check
864 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
865 ALL-y += u-boot-with-dtb.bin
868 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
870 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
871 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
873 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
874 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
877 # Normally we fill empty space with 0xff
878 quiet_cmd_objcopy = OBJCOPY $@
879 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
880 $(OBJCOPYFLAGS_$(@F)) $< $@
882 # Provide a version which does not do this, for use by EFI
883 quiet_cmd_zobjcopy = OBJCOPY $@
884 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
886 quiet_cmd_efipayload = OBJCOPY $@
887 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
889 MKIMAGEOUTPUT ?= /dev/null
891 quiet_cmd_mkimage = MKIMAGE $@
892 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
893 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
895 quiet_cmd_mkfitimage = MKIMAGE $@
896 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ -p $(CONFIG_FIT_EXTERNAL_OFFSET)\
897 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
899 quiet_cmd_cat = CAT $@
900 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
902 append = cat $(filter-out $< $(PHONY), $^) >> $@
904 quiet_cmd_pad_cat = CAT $@
905 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
909 quiet_cmd_cfgcheck = CFGCHK $2
910 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
911 $(srctree)/scripts/config_whitelist.txt $(srctree)
914 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
915 @echo >&2 "===================== WARNING ======================"
916 @echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
917 @echo >&2 "(possibly in a subsequent patch in your series)"
918 @echo >&2 "before sending patches to the mailing list."
919 @echo >&2 "===================================================="
921 ifeq ($(CONFIG_MMC),y)
922 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
923 @echo >&2 "===================== WARNING ======================"
924 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
925 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
926 @echo >&2 "Failure to update by the deadline may result in board removal."
927 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
928 @echo >&2 "===================================================="
931 ifeq ($(CONFIG_USB),y)
932 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
933 @echo >&2 "===================== WARNING ======================"
934 @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
935 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
936 @echo >&2 "Failure to update by the deadline may result in board removal."
937 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
938 @echo >&2 "===================================================="
941 ifeq ($(CONFIG_LIBATA)$(CONFIG_DM_SCSI)$(CONFIG_MVSATA_IDE),y)
942 @echo >&2 "===================== WARNING ======================"
943 @echo >&2 "This board does not use CONFIG_DM_SCSI. Please update"
944 @echo >&2 "the storage controller to use CONFIG_DM_SCSI before the v2019.07 release."
945 @echo >&2 "Failure to update by the deadline may result in board removal."
946 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
947 @echo >&2 "===================================================="
949 ifeq ($(CONFIG_OF_EMBED),y)
950 @echo >&2 "===================== WARNING ======================"
951 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
952 @echo >&2 "be used for debugging purposes. Please use"
953 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
954 @echo >&2 "See doc/README.fdt-control for more info."
955 @echo >&2 "===================================================="
957 @# Check that this build does not use CONFIG options that we do not
958 @# know about unless they are in Kconfig. All the existing CONFIG
959 @# options are whitelisted, so new ones should not be added.
960 $(call cmd,cfgcheck,u-boot.cfg)
966 $(Q)$(MAKE) $(build)=dts dtbs
968 quiet_cmd_copy = COPY $@
971 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
973 fit-dtb.blob: dts/dt.dtb FORCE
974 $(call if_changed,mkimage)
976 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
978 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
980 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
981 $(call if_changed,cat)
983 u-boot.bin: u-boot-fit-dtb.bin FORCE
984 $(call if_changed,copy)
985 else ifeq ($(CONFIG_OF_SEPARATE),y)
986 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
987 $(call if_changed,cat)
989 u-boot.bin: u-boot-dtb.bin FORCE
990 $(call if_changed,copy)
992 u-boot.bin: u-boot-nodtb.bin FORCE
993 $(call if_changed,copy)
997 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1000 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1002 quiet_cmd_copy = COPY $@
1005 u-boot.dtb: dts/dt.dtb
1008 OBJCOPYFLAGS_u-boot.hex := -O ihex
1010 OBJCOPYFLAGS_u-boot.srec := -O srec
1012 u-boot.hex u-boot.srec: u-boot FORCE
1013 $(call if_changed,objcopy)
1015 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1017 u-boot-elf.srec: u-boot.elf FORCE
1018 $(call if_changed,objcopy)
1020 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1022 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1023 $(call if_changed,objcopy)
1025 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1026 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1027 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1029 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1031 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1032 $(call if_changed,objcopy)
1034 binary_size_check: u-boot-nodtb.bin FORCE
1035 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1036 map_size=$(shell cat u-boot.map | \
1037 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1040 if [ "" != "$$map_size" ]; then \
1041 if test $$map_size -ne $$file_size; then \
1042 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1043 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1048 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1049 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1050 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1052 subtract_sys_malloc_f_len = true
1054 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1055 # so low that the DTB could probably use 90%+ of the available space, for
1056 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1057 # safe for now and tweak this later if space becomes tight.
1058 # A rejected alternative would be to check that some absolute minimum stack
1059 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1060 # deliberately build-specific, to take account of build-to-build stack usage
1061 # differences due to different feature sets, there is no common absolute value
1063 init_sp_bss_offset_check: u-boot.dtb FORCE
1064 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1065 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1066 $(subtract_sys_malloc_f_len) ; \
1067 quarter_space=$$(($${space} / 4)) ; \
1068 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1069 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1070 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1075 u-boot-nodtb.bin: u-boot FORCE
1076 $(call if_changed,objcopy)
1077 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1082 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1086 # ---------------------------------------------------------------------------
1087 # Use 'make BINMAN_DEBUG=1' to enable debugging
1088 quiet_cmd_binman = BINMAN $@
1089 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1090 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1091 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1093 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1095 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1097 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1098 $(call if_changed,objcopy)
1101 # U-Boot entry point, needed for booting of full-blown U-Boot
1102 # from the SPL U-Boot version.
1104 ifndef CONFIG_SYS_UBOOT_START
1105 CONFIG_SYS_UBOOT_START := 0
1108 # Boards with more complex image requirments can provide an .its source file
1109 # or a generator script
1110 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1111 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1113 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1114 U_BOOT_ITS := u-boot.its
1115 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1116 U_BOOT_ITS_DEPS += u-boot
1118 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1119 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1120 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1124 ifdef CONFIG_SPL_LOAD_FIT
1125 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1126 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1127 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1128 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1130 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1131 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1132 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1133 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1134 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1135 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1136 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1137 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1140 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1142 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1143 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1145 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1146 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1147 $(if $(KEYDIR),-k $(KEYDIR))
1149 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1150 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1152 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1153 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1154 $(call if_changed,mkimage)
1156 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1157 $(call if_changed,mkfitimage)
1160 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1161 $(call if_changed,mkimage)
1163 u-boot.sha1: u-boot.bin
1164 tools/ubsha1 u-boot.bin
1167 $(OBJDUMP) -d $< > $@
1169 ifneq ($(CONFIG_SPL_PAYLOAD),)
1170 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1172 SPL_PAYLOAD := u-boot.bin
1175 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1176 --pad-to=$(CONFIG_SPL_PAD_TO)
1177 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1178 $(call if_changed,pad_cat)
1180 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1181 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1183 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1184 $(call if_changed,mkimage)
1186 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1188 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1189 $(call if_changed,objcopy)
1191 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1193 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1194 $(call if_changed,objcopy)
1196 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1197 $(call if_changed,cat)
1199 CLEAN_FILES += lpc32xx-*
1202 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1203 --pad-to=$(CONFIG_TPL_PAD_TO)
1204 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1205 $(call if_changed,pad_cat)
1207 SPL: spl/u-boot-spl.bin FORCE
1208 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1210 ifeq ($(CONFIG_ARCH_IMX8M), y)
1211 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1212 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1215 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1216 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1218 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1220 u-boot.ubl: u-boot-with-spl.bin FORCE
1221 $(call if_changed,mkimage)
1223 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1224 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1225 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1226 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1227 $(call if_changed,mkimage)
1229 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1230 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1231 $(call if_changed,pad_cat)
1233 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1234 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1235 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1236 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1238 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1239 # Both images are created using mkimage (crc etc), so that the ROM
1240 # bootloader can check its integrity. Padding needs to be done to the
1241 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1242 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1243 # The resulting image containing both U-Boot images is called u-boot.spr
1244 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1245 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1246 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1247 $(call if_changed,mkimage)
1249 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1251 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1252 $(call if_changed,pad_cat)
1254 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1255 quiet_cmd_socboot = SOCBOOT $@
1256 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1257 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1258 u-boot.img > $@ || rm -f $@
1259 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1260 $(call if_changed,socboot)
1263 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1264 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1265 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1266 $(call if_changed,binman)
1268 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1269 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1270 u-boot-br.bin: u-boot FORCE
1271 $(call if_changed,objcopy)
1275 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1276 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1277 # the middle. This is handled by binman based on an image description in the
1278 # board's device tree.
1279 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1280 rom: u-boot.rom FORCE
1282 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1283 $(call if_changed,copy)
1285 quiet_cmd_ldr = LD $@
1286 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1287 $(filter-out FORCE,$^) -o $@
1289 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1290 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1291 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1292 $(call if_changed,binman)
1294 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1295 u-boot-x86-16bit.bin: u-boot FORCE
1296 $(call if_changed,objcopy)
1299 ifneq ($(CONFIG_ARCH_SUNXI),)
1300 ifeq ($(CONFIG_ARM64),)
1301 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1302 $(call if_changed,binman)
1304 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1305 $(call if_changed,cat)
1309 ifneq ($(CONFIG_TEGRA),)
1310 ifneq ($(CONFIG_BINMAN),)
1311 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1312 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1313 spl/%-spl %.bin FORCE
1314 $(call if_changed,binman)
1316 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1317 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1318 $(call if_changed,pad_cat)
1320 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1321 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1322 $(call if_changed,pad_cat)
1324 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1325 $(call if_changed,copy)
1329 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1330 u-boot-app.efi: u-boot FORCE
1331 $(call if_changed,zobjcopy)
1333 u-boot.bin.o: u-boot.bin FORCE
1334 $(call if_changed,efipayload)
1336 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1337 $(call if_changed_dep,cpp_lds)
1339 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1340 quiet_cmd_u-boot_payload ?= LD $@
1341 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1342 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1343 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1344 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1346 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1347 $(call if_changed,u-boot_payload)
1349 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1350 u-boot-payload.efi: u-boot-payload FORCE
1351 $(call if_changed,zobjcopy)
1353 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1354 $(call if_changed,cat)
1356 #Add a target to create boot binary having SPL binary in PBI format
1357 #concatenated with u-boot binary. It is need by PowerPC SoC having
1358 #internal SRAM <= 512KB.
1359 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1360 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1361 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1363 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1364 $(call if_changed,mkimage)
1367 UBOOT_BINLOAD := u-boot.img
1369 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1370 UBOOT_BINLOAD := u-boot-with-dtb.bin
1372 UBOOT_BINLOAD := u-boot.bin
1376 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1379 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1380 $(call if_changed,pad_cat)
1382 # PPC4xx needs the SPL at the end of the image, since the reset vector
1383 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1384 # and need to introduce a new build target with the full blown U-Boot
1385 # at the start padded up to the start of the SPL image. And then concat
1386 # the SPL image to the end.
1388 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1389 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1390 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1391 $(call if_changed,pad_cat)
1393 # Create a new ELF from a raw binary file.
1394 ifndef PLATFORM_ELFENTRY
1395 PLATFORM_ELFENTRY = "_start"
1397 quiet_cmd_u-boot-elf ?= LD $@
1398 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1399 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1400 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1401 u-boot.elf: u-boot.bin
1402 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1403 $(call if_changed,u-boot-elf)
1405 # MediaTek's ARM-based u-boot needs a header to contains its load address
1406 # which is parsed by the BootROM.
1407 # If the SPL build is enabled, the header will be added to the spl binary,
1408 # and the spl binary and the u-boot.img will be combined into one file.
1409 # Otherwise the header will be added to the u-boot.bin directly.
1411 ifeq ($(CONFIG_SPL),y)
1412 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1414 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1415 $(call if_changed,binman)
1417 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1418 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1419 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1421 u-boot-mtk.bin: u-boot.bin FORCE
1422 $(call if_changed,mkimage)
1425 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1427 # Rule to link u-boot
1428 # May be overridden by arch/$(ARCH)/config.mk
1429 quiet_cmd_u-boot__ ?= LD $@
1430 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1431 -T u-boot.lds $(u-boot-init) \
1432 --start-group $(u-boot-main) --end-group \
1433 $(PLATFORM_LIBS) -Map u-boot.map; \
1434 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1436 quiet_cmd_smap = GEN common/system_map.o
1438 smap=`$(call SYSTEM_MAP,u-boot) | \
1439 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1440 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1441 -c $(srctree)/common/system_map.c -o common/system_map.o
1443 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1444 +$(call if_changed,u-boot__)
1445 ifeq ($(CONFIG_KALLSYMS),y)
1447 $(call cmd,u-boot__) common/system_map.o
1450 ifeq ($(CONFIG_RISCV),y)
1451 @tools/prelink-riscv $@ 0
1454 quiet_cmd_sym ?= SYM $@
1455 cmd_sym ?= $(OBJDUMP) -t $< > $@
1456 u-boot.sym: u-boot FORCE
1457 $(call if_changed,sym)
1459 # The actual objects are generated when descending,
1460 # make sure no implicit rule kicks in
1461 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1463 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1464 # Preset locale variables to speed up the build process. Limit locale
1465 # tweaks to this spot to avoid wrong language settings when running
1466 # make menuconfig etc.
1467 # Error messages still appears in the original language
1469 PHONY += $(u-boot-dirs)
1470 $(u-boot-dirs): prepare scripts
1471 $(Q)$(MAKE) $(build)=$@
1474 # The "tools" are needed early
1475 $(filter-out tools, $(u-boot-dirs)): tools
1476 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1477 # is "yes"), so compile examples after U-Boot is compiled.
1478 examples: $(filter-out examples, $(u-boot-dirs))
1480 define filechk_uboot.release
1481 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1484 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1485 include/config/uboot.release: include/config/auto.conf FORCE
1486 $(call filechk,uboot.release)
1489 # Things we need to do before we recursively start building the kernel
1490 # or the modules are listed in "prepare".
1491 # A multi level approach is used. prepareN is processed before prepareN-1.
1492 # archprepare is used in arch Makefiles and when processed asm symlink,
1493 # version.h and scripts_basic is processed / created.
1495 # Listed in dependency order
1496 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1498 # prepare3 is used to check if we are building in a separate output directory,
1500 # 1) Check that make has not been executed in the kernel src $(srctree)
1501 prepare3: include/config/uboot.release
1502 ifneq ($(KBUILD_SRC),)
1503 @$(kecho) ' Using $(srctree) as source for U-Boot'
1504 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1505 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1506 echo >&2 " in the '$(srctree)' directory.";\
1511 # prepare2 creates a makefile if using a separate output directory
1512 prepare2: prepare3 outputmakefile
1514 prepare1: prepare2 $(version_h) $(timestamp_h) \
1515 include/config/auto.conf
1516 ifeq ($(wildcard $(LDSCRIPT)),)
1517 @echo >&2 " Could not find linker script."
1521 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1522 prepare1: $(defaultenv_h)
1525 archprepare: prepare1 scripts_basic
1527 prepare0: archprepare FORCE
1528 $(Q)$(MAKE) $(build)=.
1530 # All the preparing..
1533 # Generate some files
1534 # ---------------------------------------------------------------------------
1536 define filechk_version.h
1537 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1538 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1539 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1540 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1543 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1544 # The BSD date on the other hand behaves different and would produce errors
1545 # with the misused '-d' switch. Respect that and search a working date with
1546 # well known pre- and suffixes for the GNU variant of date.
1547 define filechk_timestamp.h
1548 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1549 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1551 for date in gdate date.gnu date; do \
1552 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1554 if test -n "$${DATE}"; then \
1555 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1556 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1557 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1558 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1559 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1564 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1565 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1566 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1567 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1568 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1572 define filechk_defaultenv.h
1576 sed -e 's/\\\x0/\n/' | \
1577 xxd -i ; echo ", 0x00" ; )
1580 $(version_h): include/config/uboot.release FORCE
1581 $(call filechk,version.h)
1583 $(timestamp_h): $(srctree)/Makefile FORCE
1584 $(call filechk,timestamp.h)
1586 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1587 $(call filechk,defaultenv.h)
1589 # ---------------------------------------------------------------------------
1590 quiet_cmd_cpp_lds = LDS $@
1591 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1592 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1594 u-boot.lds: $(LDSCRIPT) prepare FORCE
1595 $(call if_changed_dep,cpp_lds)
1597 spl/u-boot-spl.bin: spl/u-boot-spl
1599 spl/u-boot-spl: tools prepare \
1600 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1601 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1602 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1604 spl/sunxi-spl.bin: spl/u-boot-spl
1607 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1610 spl/u-boot-spl.sfp: spl/u-boot-spl
1613 spl/boot.bin: spl/u-boot-spl
1616 tpl/u-boot-tpl.bin: tools prepare \
1617 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1618 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1620 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1626 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1627 -name '*.[chS]' -print`
1631 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1632 -name '*.[chS]' -print`
1634 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1640 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1643 @$(call SYSTEM_MAP,$<) > $@
1645 #########################################################################
1647 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1648 # R_AARCH64_RELATIVE (64-bit).
1649 checkarmreloc: u-boot
1650 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1651 grep R_A | sort -u`"; \
1652 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1653 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1654 echo "$< contains unexpected relocations: $$RELOC"; \
1658 envtools: scripts_basic $(version_h) $(timestamp_h)
1659 $(Q)$(MAKE) $(build)=tools/env
1661 tools-only: scripts_basic $(version_h) $(timestamp_h)
1662 $(Q)$(MAKE) $(build)=tools
1664 tools-all: export HOST_TOOLS_ALL=y
1665 tools-all: envtools tools ;
1667 cross_tools: export CROSS_BUILD_TOOLS=y
1668 cross_tools: tools ;
1672 git log --no-merges U-Boot-1_1_5.. | \
1673 unexpand -a | sed -e 's/\s\s*$$//' > $@
1675 #########################################################################
1678 # Cleaning is done on three levels.
1679 # make clean Delete most generated files
1680 # Leave enough to build external modules
1681 # make mrproper Delete the current configuration, and all generated files
1682 # make distclean Remove editor backup files, patch leftover files and the like
1684 # Directories & files removed with 'make clean'
1685 CLEAN_DIRS += $(MODVERDIR) \
1686 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1687 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1689 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1690 boot* u-boot* MLO* SPL System.map fit-dtb.blob
1692 # Directories & files removed with 'make mrproper'
1693 MRPROPER_DIRS += include/config include/generated spl tpl \
1695 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1696 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1698 # clean - Delete most, but leave enough to build external modules
1700 clean: rm-dirs := $(CLEAN_DIRS)
1701 clean: rm-files := $(CLEAN_FILES)
1703 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1705 clean-dirs := $(addprefix _clean_, $(clean-dirs))
1707 PHONY += $(clean-dirs) clean archclean
1709 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1711 clean: $(clean-dirs)
1714 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1715 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1716 -o -name '*.ko.*' -o -name '*.su' \
1717 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1718 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1719 -o -name '*.symtypes' -o -name 'modules.order' \
1720 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1721 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1722 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1723 -type f -print | xargs rm -f
1725 # mrproper - Delete all generated files, including .config
1727 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1728 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1729 mrproper-dirs := $(addprefix _mrproper_,scripts)
1731 PHONY += $(mrproper-dirs) mrproper archmrproper
1733 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1735 mrproper: clean $(mrproper-dirs)
1738 @rm -f arch/*/include/asm/arch
1745 @find $(srctree) $(RCS_FIND_IGNORE) \
1746 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1747 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1748 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1749 -o -name '*.pyc' \) \
1750 -type f -print | xargs rm -f
1754 F=`basename $(srctree)` ; cd .. ; \
1755 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1758 @echo 'Cleaning targets:'
1759 @echo ' clean - Remove most generated files but keep the config'
1760 @echo ' mrproper - Remove all generated files + config + various backup files'
1761 @echo ' distclean - mrproper + remove editor backup and patch files'
1763 @echo 'Configuration targets:'
1764 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1766 @echo 'Test targets:'
1768 @echo ' check - Run all automated tests that use sandbox'
1769 @echo ' qcheck - Run quick automated tests that use sandbox'
1771 @echo 'Other generic targets:'
1772 @echo ' all - Build all necessary images depending on configuration'
1773 @echo ' tests - Build U-Boot for sandbox and run tests'
1774 @echo '* u-boot - Build the bare u-boot'
1775 @echo ' dir/ - Build all files in dir and below'
1776 @echo ' dir/file.[oisS] - Build specified target only'
1777 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1778 @echo ' (requires a recent binutils and recent build (System.map))'
1779 @echo ' tags/ctags - Generate ctags file for editors'
1780 @echo ' etags - Generate etags file for editors'
1781 @echo ' cscope - Generate cscope index'
1782 @echo ' ubootrelease - Output the release version string (use with make -s)'
1783 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1784 @echo " cfg - Don't build, just create the .cfg files"
1785 @echo " envtools - Build only the target-side environment tools"
1787 @echo 'Static analysers'
1788 @echo ' checkstack - Generate a list of stack hogs'
1789 @echo ' coccicheck - Execute static code analysis with Coccinelle'
1791 @echo 'Documentation targets:'
1792 @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1794 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1795 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1796 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1797 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1798 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1799 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1800 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1801 @echo ' 1: warnings which may be relevant and do not occur too often'
1802 @echo ' 2: warnings which occur quite often but may still be relevant'
1803 @echo ' 3: more obscure warnings, can most likely be ignored'
1804 @echo ' Multiple levels can be combined with W=12 or W=123'
1806 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1807 @echo 'For further info see the ./README file'
1813 $(srctree)/test/run quick
1815 # Documentation targets
1816 # ---------------------------------------------------------------------------
1817 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1818 linkcheckdocs dochelp refcheckdocs
1819 PHONY += $(DOC_TARGETS)
1820 $(DOC_TARGETS): scripts_basic FORCE
1821 $(Q)$(MAKE) $(build)=Documentation $@
1823 endif #ifeq ($(config-targets),1)
1824 endif #ifeq ($(mixed-targets),1)
1826 PHONY += checkstack ubootrelease ubootversion
1829 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1830 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1833 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1836 @echo $(UBOOTVERSION)
1839 # ---------------------------------------------------------------------------
1840 # Single targets are compatible with:
1841 # - build with mixed source and output
1842 # - build with separate output dir 'make O=...'
1843 # - external modules
1845 # target-dir => where to store outputfile
1846 # build-dir => directory in kernel source tree to use
1848 ifeq ($(KBUILD_EXTMOD),)
1849 build-dir = $(patsubst %/,%,$(dir $@))
1850 target-dir = $(dir $@)
1852 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1853 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1854 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1857 %.s: %.c prepare scripts FORCE
1858 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1859 %.i: %.c prepare scripts FORCE
1860 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1861 %.o: %.c prepare scripts FORCE
1862 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1863 %.lst: %.c prepare scripts FORCE
1864 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1865 %.s: %.S prepare scripts FORCE
1866 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1867 %.o: %.S prepare scripts FORCE
1868 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1869 %.symtypes: %.c prepare scripts FORCE
1870 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1873 /: prepare scripts FORCE
1875 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1876 $(build)=$(build-dir)
1877 %/: prepare scripts FORCE
1879 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1880 $(build)=$(build-dir)
1881 %.ko: prepare scripts FORCE
1883 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1884 $(build)=$(build-dir) $(@:.ko=.o)
1885 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1887 # Consistency checks
1888 # ---------------------------------------------------------------------------
1893 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1895 # FIXME Should go into a make.lib or something
1896 # ===========================================================================
1898 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1899 cmd_rmdirs = rm -rf $(rm-dirs)
1901 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1902 cmd_rmfiles = rm -f $(rm-files)
1904 # read all saved command lines
1906 targets := $(wildcard $(sort $(targets)))
1907 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1909 ifneq ($(cmd_files),)
1910 $(cmd_files): ; # Do not try to update included dependency files
1911 include $(cmd_files)
1914 endif # skip-makefile
1919 # Declare the contents of the .PHONY variable as phony. We keep that
1920 # information in a variable so we can use it in if_changed and friends.