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
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) $(PATCHLEVEL)
432 # To make sure we do not include .config for any of the *config targets
433 # catch them early, and hand them over to scripts/kconfig/Makefile
434 # It is allowed to specify more targets when calling make, including
435 # mixing *config targets and build targets.
436 # For example 'make oldconfig all'.
437 # Detect when mixed targets is specified, and make a second invocation
438 # of make so .config is not included in this case either (for *config).
440 version_h := include/generated/version_autogenerated.h
441 timestamp_h := include/generated/timestamp_autogenerated.h
442 defaultenv_h := include/generated/defaultenv_autogenerated.h
444 no-dot-config-targets := clean clobber mrproper distclean \
445 help %docs check% coccicheck \
446 ubootversion backup tests
452 ifneq ($(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/
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 # 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 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
866 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
867 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
869 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
870 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
873 # Normally we fill empty space with 0xff
874 quiet_cmd_objcopy = OBJCOPY $@
875 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
876 $(OBJCOPYFLAGS_$(@F)) $< $@
878 # Provide a version which does not do this, for use by EFI
879 quiet_cmd_zobjcopy = OBJCOPY $@
880 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
882 quiet_cmd_efipayload = OBJCOPY $@
883 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
885 MKIMAGEOUTPUT ?= /dev/null
887 quiet_cmd_mkimage = MKIMAGE $@
888 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
889 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
891 quiet_cmd_mkfitimage = MKIMAGE $@
892 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
893 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
895 quiet_cmd_cat = CAT $@
896 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
898 append = cat $(filter-out $< $(PHONY), $^) >> $@
900 quiet_cmd_pad_cat = CAT $@
901 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
905 quiet_cmd_cfgcheck = CFGCHK $2
906 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
907 $(srctree)/scripts/config_whitelist.txt $(srctree)
910 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
911 @echo "===================== WARNING ======================"
912 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
913 @echo "(possibly in a subsequent patch in your series)"
914 @echo "before sending patches to the mailing list."
915 @echo "===================================================="
917 @# Check that this build does not use CONFIG options that we do not
918 @# know about unless they are in Kconfig. All the existing CONFIG
919 @# options are whitelisted, so new ones should not be added.
920 $(call cmd,cfgcheck,u-boot.cfg)
926 $(Q)$(MAKE) $(build)=dts dtbs
928 quiet_cmd_copy = COPY $@
931 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
933 fit-dtb.blob: dts/dt.dtb FORCE
934 $(call if_changed,mkimage)
936 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
938 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
940 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
941 $(call if_changed,cat)
943 u-boot.bin: u-boot-fit-dtb.bin FORCE
944 $(call if_changed,copy)
945 else ifeq ($(CONFIG_OF_SEPARATE),y)
946 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
947 $(call if_changed,cat)
949 u-boot.bin: u-boot-dtb.bin FORCE
950 $(call if_changed,copy)
952 u-boot.bin: u-boot-nodtb.bin FORCE
953 $(call if_changed,copy)
957 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
960 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
962 quiet_cmd_copy = COPY $@
965 u-boot.dtb: dts/dt.dtb
968 OBJCOPYFLAGS_u-boot.hex := -O ihex
970 OBJCOPYFLAGS_u-boot.srec := -O srec
972 u-boot.hex u-boot.srec: u-boot FORCE
973 $(call if_changed,objcopy)
975 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
977 u-boot-elf.srec: u-boot.elf FORCE
978 $(call if_changed,objcopy)
980 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
982 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
983 $(call if_changed,objcopy)
985 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
986 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
988 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
990 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
991 $(call if_changed,objcopy)
993 binary_size_check: u-boot-nodtb.bin FORCE
994 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
995 map_size=$(shell cat u-boot.map | \
996 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
999 if [ "" != "$$map_size" ]; then \
1000 if test $$map_size -ne $$file_size; then \
1001 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1002 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1007 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1008 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1009 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1011 subtract_sys_malloc_f_len = true
1013 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1014 # so low that the DTB could probably use 90%+ of the available space, for
1015 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1016 # safe for now and tweak this later if space becomes tight.
1017 # A rejected alternative would be to check that some absolute minimum stack
1018 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1019 # deliberately build-specific, to take account of build-to-build stack usage
1020 # differences due to different feature sets, there is no common absolute value
1022 init_sp_bss_offset_check: u-boot.dtb FORCE
1023 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1024 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1025 $(subtract_sys_malloc_f_len) ; \
1026 quarter_space=$$(($${space} / 4)) ; \
1027 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1028 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1029 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1034 u-boot-nodtb.bin: u-boot FORCE
1035 $(call if_changed,objcopy)
1036 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1041 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1045 # ---------------------------------------------------------------------------
1046 quiet_cmd_binman = BINMAN $@
1047 cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
1048 -I . -I $(srctree)/board/$(BOARDDIR) $<
1050 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1052 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1054 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1055 $(call if_changed,objcopy)
1058 # U-Boot entry point, needed for booting of full-blown U-Boot
1059 # from the SPL U-Boot version.
1061 ifndef CONFIG_SYS_UBOOT_START
1062 CONFIG_SYS_UBOOT_START := 0
1065 # Boards with more complex image requirments can provide an .its source file
1066 # or a generator script
1067 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1068 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1070 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1071 U_BOOT_ITS := u-boot.its
1072 $(U_BOOT_ITS): FORCE
1073 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1074 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1078 ifdef CONFIG_SPL_LOAD_FIT
1079 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1080 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1081 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1082 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1084 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1085 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1086 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1087 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1088 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1089 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1090 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1091 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1094 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1096 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1097 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1099 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1100 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1101 $(if $(KEYDIR),-k $(KEYDIR))
1103 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1104 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1106 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1107 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1108 $(call if_changed,mkimage)
1110 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1111 $(call if_changed,mkfitimage)
1114 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1115 $(call if_changed,mkimage)
1117 u-boot.sha1: u-boot.bin
1118 tools/ubsha1 u-boot.bin
1121 $(OBJDUMP) -d $< > $@
1123 ifneq ($(CONFIG_SPL_PAYLOAD),)
1124 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1126 SPL_PAYLOAD := u-boot.bin
1129 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1130 --pad-to=$(CONFIG_SPL_PAD_TO)
1131 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1132 $(call if_changed,pad_cat)
1134 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1136 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1137 $(call if_changed,mkimage)
1139 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1141 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1142 $(call if_changed,objcopy)
1144 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1146 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1147 $(call if_changed,objcopy)
1149 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1150 $(call if_changed,cat)
1152 CLEAN_FILES += lpc32xx-*
1154 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1155 --pad-to=$(CONFIG_TPL_PAD_TO)
1156 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1157 $(call if_changed,pad_cat)
1159 SPL: spl/u-boot-spl.bin FORCE
1160 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1162 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1163 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1165 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1167 u-boot.ubl: u-boot-with-spl.bin FORCE
1168 $(call if_changed,mkimage)
1170 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1171 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1172 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1173 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1174 $(call if_changed,mkimage)
1176 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1177 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1178 $(call if_changed,pad_cat)
1180 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1181 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1182 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1183 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1185 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1186 # Both images are created using mkimage (crc etc), so that the ROM
1187 # bootloader can check its integrity. Padding needs to be done to the
1188 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1189 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1190 # The resulting image containing both U-Boot images is called u-boot.spr
1191 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1192 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1193 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1194 $(call if_changed,mkimage)
1196 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1198 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1199 $(call if_changed,pad_cat)
1201 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1202 quiet_cmd_socboot = SOCBOOT $@
1203 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1204 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1205 u-boot.img > $@ || rm -f $@
1206 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1207 $(call if_changed,socboot)
1210 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1211 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1212 # the middle. This is handled by binman based on an image description in the
1213 # board's device tree.
1214 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1215 rom: u-boot.rom FORCE
1217 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1218 $(call if_changed,copy)
1220 quiet_cmd_ldr = LD $@
1221 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1222 $(filter-out FORCE,$^) -o $@
1224 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1225 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1226 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1227 $(call if_changed,binman)
1229 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1230 u-boot-x86-16bit.bin: u-boot FORCE
1231 $(call if_changed,objcopy)
1234 ifneq ($(CONFIG_ARCH_SUNXI),)
1235 ifeq ($(CONFIG_ARM64),)
1236 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1237 $(call if_changed,binman)
1239 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1240 $(call if_changed,cat)
1244 ifneq ($(CONFIG_TEGRA),)
1245 ifneq ($(CONFIG_BINMAN),)
1246 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1247 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1248 spl/%-spl %.bin FORCE
1249 $(call if_changed,binman)
1251 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1252 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1253 $(call if_changed,pad_cat)
1255 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1256 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1257 $(call if_changed,pad_cat)
1259 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1260 $(call if_changed,copy)
1264 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1265 u-boot-app.efi: u-boot FORCE
1266 $(call if_changed,zobjcopy)
1268 u-boot.bin.o: u-boot.bin FORCE
1269 $(call if_changed,efipayload)
1271 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1272 $(call if_changed_dep,cpp_lds)
1274 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1275 quiet_cmd_u-boot_payload ?= LD $@
1276 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1277 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1278 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1279 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1281 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1282 $(call if_changed,u-boot_payload)
1284 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1285 u-boot-payload.efi: u-boot-payload FORCE
1286 $(call if_changed,zobjcopy)
1288 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1289 $(call if_changed,cat)
1291 #Add a target to create boot binary having SPL binary in PBI format
1292 #concatenated with u-boot binary. It is need by PowerPC SoC having
1293 #internal SRAM <= 512KB.
1294 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1295 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1296 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1298 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1299 $(call if_changed,mkimage)
1302 UBOOT_BINLOAD := u-boot.img
1304 UBOOT_BINLOAD := u-boot.bin
1307 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1310 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1311 $(call if_changed,pad_cat)
1313 # PPC4xx needs the SPL at the end of the image, since the reset vector
1314 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1315 # and need to introduce a new build target with the full blown U-Boot
1316 # at the start padded up to the start of the SPL image. And then concat
1317 # the SPL image to the end.
1319 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1320 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1321 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1322 $(call if_changed,pad_cat)
1324 # Create a new ELF from a raw binary file.
1325 ifndef PLATFORM_ELFENTRY
1326 PLATFORM_ELFENTRY = "_start"
1328 quiet_cmd_u-boot-elf ?= LD $@
1329 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1330 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1331 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1332 u-boot.elf: u-boot.bin
1333 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1334 $(call if_changed,u-boot-elf)
1336 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1338 # Rule to link u-boot
1339 # May be overridden by arch/$(ARCH)/config.mk
1340 quiet_cmd_u-boot__ ?= LD $@
1341 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1342 -T u-boot.lds $(u-boot-init) \
1343 --start-group $(u-boot-main) --end-group \
1344 $(PLATFORM_LIBS) -Map u-boot.map; \
1345 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1347 quiet_cmd_smap = GEN common/system_map.o
1349 smap=`$(call SYSTEM_MAP,u-boot) | \
1350 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1351 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1352 -c $(srctree)/common/system_map.c -o common/system_map.o
1354 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1355 +$(call if_changed,u-boot__)
1356 ifeq ($(CONFIG_KALLSYMS),y)
1358 $(call cmd,u-boot__) common/system_map.o
1361 ifeq ($(CONFIG_RISCV),y)
1362 @tools/prelink-riscv $@ 0
1365 quiet_cmd_sym ?= SYM $@
1366 cmd_sym ?= $(OBJDUMP) -t $< > $@
1367 u-boot.sym: u-boot FORCE
1368 $(call if_changed,sym)
1370 # The actual objects are generated when descending,
1371 # make sure no implicit rule kicks in
1372 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1374 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1375 # Preset locale variables to speed up the build process. Limit locale
1376 # tweaks to this spot to avoid wrong language settings when running
1377 # make menuconfig etc.
1378 # Error messages still appears in the original language
1380 PHONY += $(u-boot-dirs)
1381 $(u-boot-dirs): prepare scripts
1382 $(Q)$(MAKE) $(build)=$@
1385 # The "tools" are needed early
1386 $(filter-out tools, $(u-boot-dirs)): tools
1387 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1388 # is "yes"), so compile examples after U-Boot is compiled.
1389 examples: $(filter-out examples, $(u-boot-dirs))
1391 define filechk_uboot.release
1392 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1395 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1396 include/config/uboot.release: include/config/auto.conf FORCE
1397 $(call filechk,uboot.release)
1400 # Things we need to do before we recursively start building the kernel
1401 # or the modules are listed in "prepare".
1402 # A multi level approach is used. prepareN is processed before prepareN-1.
1403 # archprepare is used in arch Makefiles and when processed asm symlink,
1404 # version.h and scripts_basic is processed / created.
1406 # Listed in dependency order
1407 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1409 # prepare3 is used to check if we are building in a separate output directory,
1411 # 1) Check that make has not been executed in the kernel src $(srctree)
1412 prepare3: include/config/uboot.release
1413 ifneq ($(KBUILD_SRC),)
1414 @$(kecho) ' Using $(srctree) as source for U-Boot'
1415 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1416 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1417 echo >&2 " in the '$(srctree)' directory.";\
1422 # prepare2 creates a makefile if using a separate output directory
1423 prepare2: prepare3 outputmakefile
1425 prepare1: prepare2 $(version_h) $(timestamp_h) \
1426 include/config/auto.conf
1427 ifeq ($(wildcard $(LDSCRIPT)),)
1428 @echo >&2 " Could not find linker script."
1432 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1433 prepare1: $(defaultenv_h)
1436 archprepare: prepare1 scripts_basic
1438 prepare0: archprepare FORCE
1439 $(Q)$(MAKE) $(build)=.
1441 # All the preparing..
1444 # Generate some files
1445 # ---------------------------------------------------------------------------
1447 define filechk_version.h
1448 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1449 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1450 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1451 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1454 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1455 # The BSD date on the other hand behaves different and would produce errors
1456 # with the misused '-d' switch. Respect that and search a working date with
1457 # well known pre- and suffixes for the GNU variant of date.
1458 define filechk_timestamp.h
1459 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1460 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1462 for date in gdate date.gnu date; do \
1463 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1465 if test -n "$${DATE}"; then \
1466 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1467 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1468 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1469 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1470 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1475 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1476 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1477 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1478 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1479 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1483 define filechk_defaultenv.h
1487 sed -e 's/\\\x0/\n/' | \
1488 xxd -i ; echo ", 0x00" ; )
1491 $(version_h): include/config/uboot.release FORCE
1492 $(call filechk,version.h)
1494 $(timestamp_h): $(srctree)/Makefile FORCE
1495 $(call filechk,timestamp.h)
1497 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1498 $(call filechk,defaultenv.h)
1500 # ---------------------------------------------------------------------------
1501 quiet_cmd_cpp_lds = LDS $@
1502 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1503 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1505 u-boot.lds: $(LDSCRIPT) prepare FORCE
1506 $(call if_changed_dep,cpp_lds)
1508 spl/u-boot-spl.bin: spl/u-boot-spl
1510 spl/u-boot-spl: tools prepare \
1511 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1512 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1513 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1515 spl/sunxi-spl.bin: spl/u-boot-spl
1518 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1521 spl/u-boot-spl.sfp: spl/u-boot-spl
1524 spl/boot.bin: spl/u-boot-spl
1527 tpl/u-boot-tpl.bin: tools prepare \
1528 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1529 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1531 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1537 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1538 -name '*.[chS]' -print`
1542 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1543 -name '*.[chS]' -print`
1545 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1551 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1554 @$(call SYSTEM_MAP,$<) > $@
1556 #########################################################################
1558 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1559 # R_AARCH64_RELATIVE (64-bit).
1560 checkarmreloc: u-boot
1561 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1562 grep R_A | sort -u`"; \
1563 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1564 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1565 echo "$< contains unexpected relocations: $$RELOC"; \
1569 envtools: scripts_basic $(version_h) $(timestamp_h)
1570 $(Q)$(MAKE) $(build)=tools/env
1572 tools-only: scripts_basic $(version_h) $(timestamp_h)
1573 $(Q)$(MAKE) $(build)=tools
1575 tools-all: export HOST_TOOLS_ALL=y
1576 tools-all: envtools tools ;
1578 cross_tools: export CROSS_BUILD_TOOLS=y
1579 cross_tools: tools ;
1583 git log --no-merges U-Boot-1_1_5.. | \
1584 unexpand -a | sed -e 's/\s\s*$$//' > $@
1586 #########################################################################
1589 # Cleaning is done on three levels.
1590 # make clean Delete most generated files
1591 # Leave enough to build external modules
1592 # make mrproper Delete the current configuration, and all generated files
1593 # make distclean Remove editor backup files, patch leftover files and the like
1595 # Directories & files removed with 'make clean'
1596 CLEAN_DIRS += $(MODVERDIR) \
1597 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1598 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1600 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1601 boot* u-boot* MLO* SPL System.map fit-dtb.blob
1603 # Directories & files removed with 'make mrproper'
1604 MRPROPER_DIRS += include/config include/generated spl tpl \
1606 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1607 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1609 # clean - Delete most, but leave enough to build external modules
1611 clean: rm-dirs := $(CLEAN_DIRS)
1612 clean: rm-files := $(CLEAN_FILES)
1614 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1616 clean-dirs := $(addprefix _clean_, $(clean-dirs))
1618 PHONY += $(clean-dirs) clean archclean
1620 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1622 clean: $(clean-dirs)
1625 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1626 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1627 -o -name '*.ko.*' -o -name '*.su' \
1628 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1629 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1630 -o -name '*.symtypes' -o -name 'modules.order' \
1631 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1632 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1633 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1634 -type f -print | xargs rm -f
1636 # mrproper - Delete all generated files, including .config
1638 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1639 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1640 mrproper-dirs := $(addprefix _mrproper_,scripts)
1642 PHONY += $(mrproper-dirs) mrproper archmrproper
1644 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1646 mrproper: clean $(mrproper-dirs)
1649 @rm -f arch/*/include/asm/arch
1656 @find $(srctree) $(RCS_FIND_IGNORE) \
1657 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1658 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1659 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1660 -o -name '*.pyc' \) \
1661 -type f -print | xargs rm -f
1665 F=`basename $(srctree)` ; cd .. ; \
1666 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1669 @echo 'Cleaning targets:'
1670 @echo ' clean - Remove most generated files but keep the config'
1671 @echo ' mrproper - Remove all generated files + config + various backup files'
1672 @echo ' distclean - mrproper + remove editor backup and patch files'
1674 @echo 'Configuration targets:'
1675 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1677 @echo 'Other generic targets:'
1678 @echo ' all - Build all necessary images depending on configuration'
1679 @echo ' tests - Build U-Boot for sandbox and run tests'
1680 @echo '* u-boot - Build the bare u-boot'
1681 @echo ' dir/ - Build all files in dir and below'
1682 @echo ' dir/file.[oisS] - Build specified target only'
1683 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1684 @echo ' (requires a recent binutils and recent build (System.map))'
1685 @echo ' tags/ctags - Generate ctags file for editors'
1686 @echo ' etags - Generate etags file for editors'
1687 @echo ' cscope - Generate cscope index'
1688 @echo ' ubootrelease - Output the release version string (use with make -s)'
1689 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1690 @echo " cfg - Don't build, just create the .cfg files"
1691 @echo " envtools - Build only the target-side environment tools"
1693 @echo 'Static analysers'
1694 @echo ' checkstack - Generate a list of stack hogs'
1695 @echo ' coccicheck - Execute static code analysis with Coccinelle'
1697 @echo 'Documentation targets:'
1698 @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1700 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1701 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1702 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1703 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1704 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1705 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1706 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1707 @echo ' 1: warnings which may be relevant and do not occur too often'
1708 @echo ' 2: warnings which occur quite often but may still be relevant'
1709 @echo ' 3: more obscure warnings, can most likely be ignored'
1710 @echo ' Multiple levels can be combined with W=12 or W=123'
1712 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1713 @echo 'For further info see the ./README file'
1718 # Documentation targets
1719 # ---------------------------------------------------------------------------
1720 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1721 linkcheckdocs dochelp refcheckdocs
1722 PHONY += $(DOC_TARGETS)
1723 $(DOC_TARGETS): scripts_basic FORCE
1724 $(Q)$(MAKE) $(build)=Documentation $@
1726 endif #ifeq ($(config-targets),1)
1727 endif #ifeq ($(mixed-targets),1)
1729 PHONY += checkstack ubootrelease ubootversion
1732 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1733 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1736 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1739 @echo $(UBOOTVERSION)
1742 # ---------------------------------------------------------------------------
1743 # Single targets are compatible with:
1744 # - build with mixed source and output
1745 # - build with separate output dir 'make O=...'
1746 # - external modules
1748 # target-dir => where to store outputfile
1749 # build-dir => directory in kernel source tree to use
1751 ifeq ($(KBUILD_EXTMOD),)
1752 build-dir = $(patsubst %/,%,$(dir $@))
1753 target-dir = $(dir $@)
1755 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1756 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1757 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1760 %.s: %.c prepare scripts FORCE
1761 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1762 %.i: %.c prepare scripts FORCE
1763 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1764 %.o: %.c prepare scripts FORCE
1765 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1766 %.lst: %.c prepare scripts FORCE
1767 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1768 %.s: %.S prepare scripts FORCE
1769 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1770 %.o: %.S prepare scripts FORCE
1771 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1772 %.symtypes: %.c prepare scripts FORCE
1773 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1776 /: prepare scripts FORCE
1778 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1779 $(build)=$(build-dir)
1780 %/: prepare scripts FORCE
1782 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1783 $(build)=$(build-dir)
1784 %.ko: prepare scripts FORCE
1786 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1787 $(build)=$(build-dir) $(@:.ko=.o)
1788 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1790 # Consistency checks
1791 # ---------------------------------------------------------------------------
1796 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1798 # FIXME Should go into a make.lib or something
1799 # ===========================================================================
1801 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1802 cmd_rmdirs = rm -rf $(rm-dirs)
1804 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1805 cmd_rmfiles = rm -f $(rm-files)
1807 # read all saved command lines
1809 targets := $(wildcard $(sort $(targets)))
1810 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1812 ifneq ($(cmd_files),)
1813 $(cmd_files): ; # Do not try to update included dependency files
1814 include $(cmd_files)
1817 endif # skip-makefile
1822 # Declare the contents of the .PHONY variable as phony. We keep that
1823 # information in a variable so we can use it in if_changed and friends.