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=$(CURDIR)
20 # Determine host architecture
21 include include/host_arch.h
22 MK_ARCH="${shell uname -m}"
24 ifeq ("x86_64", $(MK_ARCH))
25 export HOST_ARCH=$(HOST_ARCH_X86_64)
26 else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686"))
27 export HOST_ARCH=$(HOST_ARCH_X86)
28 else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l"))
29 export HOST_ARCH=$(HOST_ARCH_AARCH64)
30 else ifeq ("armv7l", $(MK_ARCH))
31 export HOST_ARCH=$(HOST_ARCH_ARM)
32 else ifeq ("riscv32", $(MK_ARCH))
33 export HOST_ARCH=$(HOST_ARCH_RISCV32)
34 else ifeq ("riscv64", $(MK_ARCH))
35 export HOST_ARCH=$(HOST_ARCH_RISCV64)
39 # Avoid funny character set dependencies
43 export LC_COLLATE LC_NUMERIC
45 # Avoid interference with shell env settings
48 # We are using a recursive build, so we need to do a little thinking
49 # to get the ordering right.
51 # Most importantly: sub-Makefiles should only ever modify files in
52 # their own directory. If in some directory we have a dependency on
53 # a file in another dir (which doesn't happen often, but it's often
54 # unavoidable when linking the built-in.o targets which finally
55 # turn into vmlinux), we will call a sub make in that other dir, and
56 # after that we are sure that everything which is in that other dir
59 # The only cases where we need to modify files which have global
60 # effects are thus separated out and done before the recursive
61 # descending is started. They are now explicitly listed as the
65 # ---------------------------------------------------------------------------
67 # Normally, we echo the whole command before executing it. By making
68 # that echo $($(quiet)$(cmd)), we now have the possibility to set
69 # $(quiet) to choose other forms of output instead, e.g.
71 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
72 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
74 # If $(quiet) is empty, the whole command will be printed.
75 # If it is set to "quiet_", only the short version will be printed.
76 # If it is set to "silent_", nothing will be printed at all, since
77 # the variable $(silent_cmd_cc_o_c) doesn't exist.
79 # A simple variant is to prefix commands with $(Q) - that's useful
80 # for commands that shall be hidden in non-verbose mode.
84 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
85 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
87 # To put more focus on warnings, be less verbose as default
88 # Use 'make V=1' to see the full commands
90 ifeq ("$(origin V)", "command line")
97 ifeq ($(KBUILD_VERBOSE),1)
105 # If the user is running make -s (silent mode), suppress echoing of
108 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
109 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
113 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
118 export quiet Q KBUILD_VERBOSE
120 # kbuild supports saving output files in a separate directory.
121 # To locate output files in a separate directory two syntaxes are supported.
122 # In both cases the working directory must be the root of the kernel src.
124 # Use "make O=dir/to/store/output/files/"
126 # 2) Set KBUILD_OUTPUT
127 # Set the environment variable KBUILD_OUTPUT to point to the directory
128 # where the output files shall be placed.
129 # export KBUILD_OUTPUT=dir/to/store/output/files/
132 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
135 # KBUILD_SRC is set on invocation of make in OBJ directory
136 # KBUILD_SRC is not intended to be used by the regular user (for now)
137 ifeq ($(KBUILD_SRC),)
139 # OK, Make called in directory where kernel src resides
140 # Do we want to locate output files in a separate directory?
141 ifeq ("$(origin O)", "command line")
142 KBUILD_OUTPUT := $(O)
145 # That's our default target when none is given on the command line
149 # Cancel implicit rules on top Makefile
150 $(CURDIR)/Makefile Makefile: ;
152 ifneq ($(KBUILD_OUTPUT),)
153 # Invoke a second make in the output directory, passing relevant variables
154 # check that the output directory actually exists
155 saved-output := $(KBUILD_OUTPUT)
156 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
158 $(if $(KBUILD_OUTPUT),, \
159 $(error failed to create output directory "$(saved-output)"))
161 PHONY += $(MAKECMDGOALS) sub-make
163 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
167 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
168 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
170 # Leave processing to above invocation of make
172 endif # ifneq ($(KBUILD_OUTPUT),)
173 endif # ifeq ($(KBUILD_SRC),)
175 # We process the rest of the Makefile if this is the final invocation of make
176 ifeq ($(skip-makefile),)
178 # Do not print "Entering directory ...",
179 # but we want to display it when entering to the output directory
180 # so that IDEs/editors are able to understand relative filenames.
181 MAKEFLAGS += --no-print-directory
183 # Call a source code checker (by default, "sparse") as part of the
186 # Use 'make C=1' to enable checking of only re-compiled files.
187 # Use 'make C=2' to enable checking of *all* source files, regardless
188 # of whether they are re-compiled or not.
190 # See the file "doc/sparse.txt" for more details, including
191 # where to get the "sparse" utility.
193 ifeq ("$(origin C)", "command line")
194 KBUILD_CHECKSRC = $(C)
196 ifndef KBUILD_CHECKSRC
200 # Use make M=dir to specify directory of external module to build
201 # Old syntax make ... SUBDIRS=$PWD is still supported
202 # Setting the environment variable KBUILD_EXTMOD take precedence
204 KBUILD_EXTMOD ?= $(SUBDIRS)
207 ifeq ("$(origin M)", "command line")
208 KBUILD_EXTMOD := $(M)
211 # If building an external module we do not care about the all: rule
212 # but instead _all depend on modules
214 ifeq ($(KBUILD_EXTMOD),)
220 ifeq ($(KBUILD_SRC),)
221 # building in the source tree
224 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
225 # building in a subdirectory of the source tree
228 srctree := $(KBUILD_SRC)
235 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
237 export srctree objtree VPATH
239 # Make sure CDPATH settings don't interfere
242 #########################################################################
244 HOSTARCH := $(shell uname -m | \
246 -e s/sun4u/sparc64/ \
249 -e s/ppc64/powerpc/ \
251 -e s/macppc/powerpc/\
254 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
255 sed -e 's/\(cygwin\).*/cygwin/')
257 export HOSTARCH HOSTOS
259 #########################################################################
261 # set default to nothing for native builds
262 ifeq ($(HOSTARCH),$(ARCH))
266 KCONFIG_CONFIG ?= .config
267 export KCONFIG_CONFIG
269 # SHELL used by kbuild
270 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
271 else if [ -x /bin/bash ]; then echo /bin/bash; \
272 else echo sh; fi ; fi)
276 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
277 $(if $(CONFIG_TOOLS_DEBUG),-g)
280 # With the move to GCC 6, we have implicitly upgraded our language
281 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
282 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
283 # have older compilers as their default, so we make it explicit for
284 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
285 CSTD_FLAG := -std=gnu11
286 ifeq ($(HOSTOS),linux)
287 HOSTCFLAGS += $(CSTD_FLAG)
290 ifeq ($(HOSTOS),cygwin)
294 # Mac OS X / Darwin's C preprocessor is Apple specific. It
295 # generates numerous errors and warnings. We want to bypass it
296 # and use GNU C's cpp. To do this we pass the -traditional-cpp
297 # option to the compiler. Note that the -traditional-cpp flag
298 # DOES NOT have the same semantics as GNU C's flag, all it does
299 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
301 # Apple's linker is similar, thanks to the new 2 stage linking
302 # multiple symbol definitions are treated as errors, hence the
303 # -multiply_defined suppress option to turn off this error.
305 ifeq ($(HOSTOS),darwin)
306 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
307 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
308 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
310 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
311 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
313 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
314 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
316 # Snow Leopards build environment has no longer restrictions as described above
317 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
318 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
319 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
321 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
322 # in some host tools which is a problem then ... so disable ASLR for these
324 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
326 # macOS Mojave (10.14.X)
327 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
328 HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
331 # Decide whether to build built-in, modular, or both.
332 # Normally, just do built-in.
337 # If we have only "make modules", don't compile built-in objects.
338 # When we're building modules with modversions, we need to consider
339 # the built-in objects during the descend as well, in order to
340 # make sure the checksums are up to date before we record them.
342 ifeq ($(MAKECMDGOALS),modules)
343 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
346 # If we have "make <whatever> modules", compile modules
347 # in addition to whatever we do anyway.
348 # Just "make" or "make all" shall build modules as well
350 # U-Boot does not need modules
351 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
352 # KBUILD_MODULES := 1
355 #ifeq ($(MAKECMDGOALS),)
356 # KBUILD_MODULES := 1
359 # Check ths size of a binary:
362 # #2: Size limit in bytes (decimal or 0xhex)
364 actual=$$( wc -c $1 | awk '{print $$1}'); \
365 limit=$$( printf "%d" $2 ); \
366 if test $$actual -gt $$limit; then \
367 echo "$1 exceeds file size limit:" >&2; \
368 echo " limit: $$(printf %#x $$limit) bytes" >&2; \
369 echo " actual: $$(printf %#x $$actual) bytes" >&2; \
370 echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\
376 export KBUILD_MODULES KBUILD_BUILTIN
377 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
379 # We need some generic definitions (do not try to remake the file).
380 scripts/Kbuild.include: ;
381 include scripts/Kbuild.include
383 # Make variables (CC, etc...)
385 AS = $(CROSS_COMPILE)as
387 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
388 LD = $(CROSS_COMPILE)ld.bfd
390 LD = $(CROSS_COMPILE)ld
392 CC = $(CROSS_COMPILE)gcc
394 AR = $(CROSS_COMPILE)ar
395 NM = $(CROSS_COMPILE)nm
396 LDR = $(CROSS_COMPILE)ldr
397 STRIP = $(CROSS_COMPILE)strip
398 OBJCOPY = $(CROSS_COMPILE)objcopy
399 OBJDUMP = $(CROSS_COMPILE)objdump
407 DTC ?= $(objtree)/scripts/dtc/dtc
410 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
411 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
413 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
415 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
416 -Wno-format-security \
417 -fno-builtin -ffreestanding $(CSTD_FLAG)
418 KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
419 KBUILD_AFLAGS := -D__ASSEMBLY__
421 # Don't generate position independent code
422 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
423 KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
425 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
426 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
427 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
429 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
430 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
431 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
432 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
433 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
434 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
436 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
437 export KBUILD_CFLAGS KBUILD_AFLAGS
439 # When compiling out-of-tree modules, put MODVERDIR in the module
440 # tree rather than in the kernel tree. The kernel tree might
442 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
444 # Files to ignore in find ... statements
446 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
447 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
449 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
450 --exclude CVS --exclude .pc --exclude .hg --exclude .git
452 # ===========================================================================
453 # Rules shared between *config targets and build targets
455 # Basic helpers built in scripts/
456 PHONY += scripts_basic
458 $(Q)$(MAKE) $(build)=scripts/basic
459 $(Q)rm -f .tmp_quiet_recordmcount
461 # To avoid any implicit rule to kick in, define an empty command.
462 scripts/basic/%: scripts_basic ;
464 PHONY += outputmakefile
465 # outputmakefile generates a Makefile in the output directory, if using a
466 # separate output directory. This allows convenient use of make in the
469 ifneq ($(KBUILD_SRC),)
470 $(Q)ln -fsn $(srctree) source
471 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
472 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
475 # To make sure we do not include .config for any of the *config targets
476 # catch them early, and hand them over to scripts/kconfig/Makefile
477 # It is allowed to specify more targets when calling make, including
478 # mixing *config targets and build targets.
479 # For example 'make oldconfig all'.
480 # Detect when mixed targets is specified, and make a second invocation
481 # of make so .config is not included in this case either (for *config).
483 version_h := include/generated/version_autogenerated.h
484 timestamp_h := include/generated/timestamp_autogenerated.h
485 defaultenv_h := include/generated/defaultenv_autogenerated.h
487 no-dot-config-targets := clean clobber mrproper distclean \
488 help %docs check% coccicheck \
489 ubootversion backup tests check qcheck
495 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
496 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
501 ifeq ($(KBUILD_EXTMOD),)
502 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
504 ifneq ($(words $(MAKECMDGOALS)),1)
510 ifeq ($(mixed-targets),1)
511 # ===========================================================================
512 # We're called with mixed targets (*config and build targets).
513 # Handle them one by one.
515 PHONY += $(MAKECMDGOALS) __build_one_by_one
517 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
522 for i in $(MAKECMDGOALS); do \
523 $(MAKE) -f $(srctree)/Makefile $$i; \
527 ifeq ($(config-targets),1)
528 # ===========================================================================
529 # *config targets only - make sure prerequisites are updated, and descend
530 # in scripts/kconfig to make the *config target
532 KBUILD_DEFCONFIG := sandbox_defconfig
533 export KBUILD_DEFCONFIG KBUILD_KCONFIG
535 config: scripts_basic outputmakefile FORCE
536 $(Q)$(MAKE) $(build)=scripts/kconfig $@
538 %config: scripts_basic outputmakefile FORCE
539 $(Q)$(MAKE) $(build)=scripts/kconfig $@
542 # ===========================================================================
543 # Build targets only - this includes vmlinux, arch specific targets, clean
544 # targets and others. In general all targets except *config targets.
546 # Additional helpers built in scripts/
547 # Carefully list dependencies so we do not try to build scripts twice
550 scripts: scripts_basic include/config/auto.conf
551 $(Q)$(MAKE) $(build)=$(@)
553 ifeq ($(dot-config),1)
555 -include include/config/auto.conf
557 # Read in dependencies to all Kconfig* files, make sure to run
558 # oldconfig if changes are detected.
559 -include include/config/auto.conf.cmd
561 # To avoid any implicit rule to kick in, define an empty command
562 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
564 # If .config is newer than include/config/auto.conf, someone tinkered
565 # with it and forgot to run make oldconfig.
566 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
567 # we execute the config step to be sure to catch updated Kconfig files
568 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
569 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
570 @# If the following part fails, include/config/auto.conf should be
571 @# deleted so "make silentoldconfig" will be re-run on the next build.
572 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
573 { rm -f include/config/auto.conf; false; }
574 @# include/config.h has been updated after "make silentoldconfig".
575 @# We need to touch include/config/auto.conf so it gets newer
576 @# than include/config.h.
577 @# Otherwise, 'make silentoldconfig' would be invoked twice.
578 $(Q)touch include/config/auto.conf
580 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
581 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
583 -include include/autoconf.mk
584 -include include/autoconf.mk.dep
586 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
587 # is up-to-date. When we switch to a different board configuration, old CONFIG
588 # macros are still remaining in include/config/auto.conf. Without the following
589 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
590 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
591 ifneq ($(wildcard include/config/auto.conf),)
592 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
593 include/config/auto.conf)
594 ifeq ($(autoconf_is_old),)
596 include arch/$(ARCH)/Makefile
601 # These are set by the arch-specific config.mk. Make sure they are exported
602 # so they can be used when building an EFI application.
603 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
604 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
605 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
606 export CFLAGS_EFI # Compiler flags to add when building EFI app
607 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
608 export EFI_TARGET # binutils target if EFI is natively supported
610 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
611 # that (or fail if absent). Otherwise, search for a linker script in a
615 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
616 ifdef CONFIG_SYS_LDSCRIPT
617 # need to strip off double quotes
618 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
622 # If there is no specified link script, we look in a number of places for it
624 ifeq ($(wildcard $(LDSCRIPT)),)
625 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
627 ifeq ($(wildcard $(LDSCRIPT)),)
628 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
630 ifeq ($(wildcard $(LDSCRIPT)),)
631 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
636 # Dummy target needed, because used as prerequisite
637 include/config/auto.conf: ;
638 endif # $(dot-config)
641 # Xtensa linker script cannot be preprocessed with -ansi because of
642 # preprocessor operations on strings that don't make C identifiers.
644 ifeq ($(CONFIG_XTENSA),)
648 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
654 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
655 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
657 # change __FILE__ to the relative path from the srctree
658 KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
661 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
662 # option to the assembler.
665 # Report stack usage if supported
666 # ARC tools based on GCC 7.1 has an issue with stack usage
667 # with naked functions, see commit message for more details
669 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
670 KBUILD_CFLAGS += -fstack-usage
674 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
675 ifeq ($(cc-name),clang)
676 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
677 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
678 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
679 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
680 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
683 # turn jbsr into jsr for m68k
685 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
686 KBUILD_AFLAGS += -Wa,-gstabs,-S
690 # Prohibit date/time macros, which would make the build non-deterministic
691 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
693 include scripts/Makefile.extrawarn
695 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
696 KBUILD_CPPFLAGS += $(KCPPFLAGS)
697 KBUILD_AFLAGS += $(KAFLAGS)
698 KBUILD_CFLAGS += $(KCFLAGS)
700 # Use UBOOTINCLUDE when you must reference the include/ directory.
701 # Needed to be compatible with the O= option
704 $(if $(KBUILD_SRC), -I$(srctree)/include) \
705 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
706 $(if $(CONFIG_HAS_THUMB2),, \
707 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
708 -I$(srctree)/arch/$(ARCH)/include \
709 -include $(srctree)/include/linux/kconfig.h
711 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
712 CHECKFLAGS += $(NOSTDINC_FLAGS)
715 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
717 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
719 #########################################################################
720 # U-Boot objects....order is important (i.e. start must be first)
722 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
725 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
726 libs-$(CONFIG_OF_EMBED) += dts/
731 libs-y += drivers/dma/
732 libs-y += drivers/gpio/
733 libs-y += drivers/i2c/
734 libs-y += drivers/mtd/
735 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/
736 libs-y += drivers/mtd/onenand/
737 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
738 libs-y += drivers/mtd/spi/
739 libs-y += drivers/net/
740 libs-y += drivers/net/phy/
741 libs-y += drivers/power/ \
742 drivers/power/domain/ \
743 drivers/power/fuel_gauge/ \
745 drivers/power/pmic/ \
746 drivers/power/battery/ \
747 drivers/power/regulator/
748 libs-y += drivers/spi/
749 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
750 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
751 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
752 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
753 libs-y += drivers/serial/
754 libs-y += drivers/usb/cdns3/
755 libs-y += drivers/usb/dwc3/
756 libs-y += drivers/usb/common/
757 libs-y += drivers/usb/emul/
758 libs-y += drivers/usb/eth/
759 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
760 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
761 libs-y += drivers/usb/host/
762 libs-y += drivers/usb/musb/
763 libs-y += drivers/usb/musb-new/
764 libs-y += drivers/usb/phy/
765 libs-y += drivers/usb/ulpi/
769 libs-$(CONFIG_API) += api/
770 libs-$(CONFIG_HAS_POST) += post/
771 libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
772 libs-$(CONFIG_UT_ENV) += test/env/
773 libs-$(CONFIG_UT_OPTEE) += test/optee/
774 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
776 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
778 libs-y := $(sort $(libs-y))
780 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
782 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
784 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
786 u-boot-init := $(head-y)
787 u-boot-main := $(libs-y)
791 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
792 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
794 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
796 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
798 ifdef CONFIG_CC_COVERAGE
799 KBUILD_CFLAGS += --coverage
800 PLATFORM_LIBGCC += -lgcov
804 export PLATFORM_LIBGCC
806 # Special flags for CPP when processing the linker script.
807 # Pass the version down so we can handle backwards compatibility
810 -include $(srctree)/include/u-boot/u-boot.lds.h \
812 $(shell $(LD) --version | \
813 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
815 #########################################################################
816 #########################################################################
818 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
819 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
824 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0)
825 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
830 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0)
831 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
836 # Statically apply RELA-style relocations (currently arm64 only)
837 # This is useful for arm64 where static relocation needs to be performed on
838 # the raw binary, but certain simulators only accept an ELF file (but don't
839 # do the relocation).
840 ifneq ($(CONFIG_STATIC_RELA),)
841 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
843 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
844 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
845 tools/relocate-rela $(2) $(3) $$start $$end
850 # Always append ALL so that arch config.mk's can add custom ones
851 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
853 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
854 ifeq ($(CONFIG_SPL_FSL_PBL),y)
855 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
857 ifneq ($(CONFIG_SECURE_BOOT), y)
858 # For Secure Boot The Image needs to be signed and Header must also
859 # be included. So The image has to be built explicitly
860 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
863 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
864 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
865 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
867 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
868 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
870 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
873 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
874 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
875 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
876 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
878 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
879 ifneq ($(CONFIG_SPL_TARGET),)
880 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
882 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
883 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
884 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
886 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
887 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
890 # Build a combined spl + u-boot image for sunxi
891 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
892 ALL-y += u-boot-sunxi-with-spl.bin
895 # enable combined SPL/u-boot/dtb rules for tegra
896 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
897 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
898 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
901 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
903 # Add optional build target if defined in board/cpu/soc headers
904 ifneq ($(CONFIG_BUILD_TARGET),)
905 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
908 ifdef CONFIG_INIT_SP_RELATIVE
909 ALL-y += init_sp_bss_offset_check
912 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
913 ALL-y += u-boot-with-dtb.bin
916 ifeq ($(CONFIG_ARCH_ROCKCHIP)$(CONFIG_SPL)$(CONFIG_TPL),yyy)
917 ALL-y += idbloader.img
920 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
922 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
923 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
925 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
926 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
929 # Normally we fill empty space with 0xff
930 quiet_cmd_objcopy = OBJCOPY $@
931 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
932 $(OBJCOPYFLAGS_$(@F)) $< $@
934 # Provide a version which does not do this, for use by EFI
935 quiet_cmd_zobjcopy = OBJCOPY $@
936 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
938 quiet_cmd_efipayload = OBJCOPY $@
939 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
941 MKIMAGEOUTPUT ?= /dev/null
943 quiet_cmd_mkimage = MKIMAGE $@
944 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
945 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
947 quiet_cmd_mkfitimage = MKIMAGE $@
948 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\
949 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
951 quiet_cmd_cat = CAT $@
952 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
954 append = cat $(filter-out $< $(PHONY), $^) >> $@
956 quiet_cmd_pad_cat = CAT $@
957 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
961 quiet_cmd_cfgcheck = CFGCHK $2
962 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
963 $(srctree)/scripts/config_whitelist.txt $(srctree)
966 ifeq ($(CONFIG_DEPRECATED),y)
967 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
968 ifeq ($(CONFIG_SPI),y)
969 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
970 $(warning "The relevant config item with associated code will remove in v2019.07 release.")
974 ifneq ($(CONFIG_DM),y)
975 @echo >&2 "===================== WARNING ======================"
976 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
977 @echo >&2 "compulsory starting with the v2020.01 release."
978 @echo >&2 "Failure to update may result in board removal."
979 @echo >&2 "See doc/driver-model/migration.rst for more info."
980 @echo >&2 "===================================================="
982 ifeq ($(CONFIG_MMC),y)
983 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
984 @echo >&2 "===================== WARNING ======================"
985 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
986 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
987 @echo >&2 "Failure to update by the deadline may result in board removal."
988 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
989 @echo >&2 "===================================================="
992 ifeq ($(CONFIG_USB),y)
993 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
994 @echo >&2 "===================== WARNING ======================"
995 @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
996 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
997 @echo >&2 "Failure to update by the deadline may result in board removal."
998 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
999 @echo >&2 "===================================================="
1002 ifeq ($(CONFIG_MVSATA_IDE),y)
1003 @echo >&2 "===================== WARNING ======================"
1004 @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
1005 @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
1006 @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
1007 @echo >&2 "release."
1008 @echo >&2 "Failure to update by the deadline may result in board removal."
1009 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1010 @echo >&2 "===================================================="
1012 ifeq ($(CONFIG_LIBATA),y)
1013 ifneq ($(CONFIG_AHCI),y)
1014 @echo >&2 "===================== WARNING ======================"
1015 @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
1016 @echo >&2 "enabled. Please update the storage controller driver to use"
1017 @echo >&2 "CONFIG_AHCI before the v2019.07 release."
1018 @echo >&2 "Failure to update by the deadline may result in board removal."
1019 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1020 @echo >&2 "===================================================="
1023 ifeq ($(CONFIG_PCI),y)
1024 ifneq ($(CONFIG_DM_PCI),y)
1025 @echo >&2 "===================== WARNING ======================"
1026 @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
1027 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
1028 @echo >&2 "Failure to update by the deadline may result in board removal."
1029 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1030 @echo >&2 "===================================================="
1033 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
1034 ifneq ($(CONFIG_DM_VIDEO),y)
1035 @echo >&2 "===================== WARNING ======================"
1036 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
1037 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
1038 @echo >&2 "Failure to update by the deadline may result in board removal."
1039 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1040 @echo >&2 "===================================================="
1043 ifeq ($(CONFIG_OF_EMBED),y)
1044 @echo >&2 "===================== WARNING ======================"
1045 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1046 @echo >&2 "be used for debugging purposes. Please use"
1047 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1048 @echo >&2 "See doc/README.fdt-control for more info."
1049 @echo >&2 "===================================================="
1051 ifeq ($(CONFIG_SPI_FLASH),y)
1052 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1053 @echo >&2 "===================== WARNING ======================"
1054 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1055 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1056 @echo >&2 "Failure to update by the deadline may result in board removal."
1057 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1058 @echo >&2 "===================================================="
1061 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1062 ifneq ($(CONFIG_WDT),y)
1063 @echo >&2 "===================== WARNING ======================"
1064 @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1065 @echo >&2 "Please update the board to use CONFIG_WDT before the"
1066 @echo >&2 "v2019.10 release."
1067 @echo >&2 "Failure to update by the deadline may result in board removal."
1068 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1069 @echo >&2 "===================================================="
1072 ifneq ($(CONFIG_NET),)
1073 ifneq ($(CONFIG_DM_ETH),y)
1074 @echo >&2 "===================== WARNING ======================"
1075 @echo >&2 "This board does not use CONFIG_DM_ETH (Driver Model"
1076 @echo >&2 "for Ethernet drivers). Please update the board to use"
1077 @echo >&2 "CONFIG_DM_ETH before the v2020.07 release. Failure to"
1078 @echo >&2 "update by the deadline may result in board removal."
1079 @echo >&2 "See doc/driver-model/migration.rst for more info."
1080 @echo >&2 "===================================================="
1083 @# Check that this build does not use CONFIG options that we do not
1084 @# know about unless they are in Kconfig. All the existing CONFIG
1085 @# options are whitelisted, so new ones should not be added.
1086 $(call cmd,cfgcheck,u-boot.cfg)
1092 $(Q)$(MAKE) $(build)=dts dtbs
1094 quiet_cmd_copy = COPY $@
1097 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1099 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1100 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1101 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1102 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1104 FINAL_DTB_CONTAINER = fit-dtb.blob
1107 fit-dtb.blob.gz: fit-dtb.blob
1110 fit-dtb.blob.lzo: fit-dtb.blob
1113 fit-dtb.blob: dts/dt.dtb FORCE
1114 $(call if_changed,mkimage)
1115 ifneq ($(SOURCE_DATE_EPOCH),)
1116 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1117 chmod 0600 fit-dtb.blob
1120 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1122 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1125 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1126 $(call if_changed,cat)
1128 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1129 $(call if_changed,cat)
1132 u-boot.bin: u-boot-fit-dtb.bin FORCE
1133 $(call if_changed,copy)
1135 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1136 $(call if_changed,cat)
1138 else ifeq ($(CONFIG_OF_SEPARATE),y)
1139 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1140 $(call if_changed,cat)
1142 u-boot.bin: u-boot-dtb.bin FORCE
1143 $(call if_changed,copy)
1145 u-boot.bin: u-boot-nodtb.bin FORCE
1146 $(call if_changed,copy)
1149 # we call Makefile in arch/arm/mach-imx which
1150 # has targets which are dependent on targets defined
1151 # here. make could not resolve them and we must ensure
1152 # that they are finished before calling imx targets
1153 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1154 IMX_DEPS = u-boot-fit-dtb.bin
1157 %.imx: $(IMX_DEPS) %.bin
1158 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1162 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1164 quiet_cmd_copy = COPY $@
1167 u-boot.dtb: dts/dt.dtb
1170 OBJCOPYFLAGS_u-boot.hex := -O ihex
1172 OBJCOPYFLAGS_u-boot.srec := -O srec
1174 u-boot.hex u-boot.srec: u-boot FORCE
1175 $(call if_changed,objcopy)
1177 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1179 u-boot-elf.srec: u-boot.elf FORCE
1180 $(call if_changed,objcopy)
1182 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1184 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1185 $(call if_changed,objcopy)
1188 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1190 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1191 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1192 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1194 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1196 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1197 $(call if_changed,objcopy)
1199 binary_size_check: u-boot-nodtb.bin FORCE
1200 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1201 map_size=$(shell cat u-boot.map | \
1202 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1205 if [ "" != "$$map_size" ]; then \
1206 if test $$map_size -ne $$file_size; then \
1207 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1208 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1213 ifdef CONFIG_INIT_SP_RELATIVE
1214 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1215 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1217 subtract_sys_malloc_f_len = true
1219 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1220 # so low that the DTB could probably use 90%+ of the available space, for
1221 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1222 # safe for now and tweak this later if space becomes tight.
1223 # A rejected alternative would be to check that some absolute minimum stack
1224 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1225 # deliberately build-specific, to take account of build-to-build stack usage
1226 # differences due to different feature sets, there is no common absolute value
1228 init_sp_bss_offset_check: u-boot.dtb FORCE
1229 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1230 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1231 $(subtract_sys_malloc_f_len) ; \
1232 quarter_space=$$(($${space} / 4)) ; \
1233 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1234 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1235 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1240 u-boot-nodtb.bin: u-boot FORCE
1241 $(call if_changed,objcopy)
1242 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1247 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1251 # ---------------------------------------------------------------------------
1252 # Use 'make BINMAN_DEBUG=1' to enable debugging
1253 quiet_cmd_binman = BINMAN $@
1254 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1255 --toolpath $(objtree)/tools \
1256 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1257 build -u -d u-boot.dtb -O . -m \
1258 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1261 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1263 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1265 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1266 $(call if_changed,objcopy)
1269 # U-Boot entry point, needed for booting of full-blown U-Boot
1270 # from the SPL U-Boot version.
1272 ifndef CONFIG_SYS_UBOOT_START
1273 CONFIG_SYS_UBOOT_START := 0
1276 # Boards with more complex image requirements can provide an .its source file
1277 # or a generator script
1278 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1279 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1281 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1282 U_BOOT_ITS := u-boot.its
1283 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1284 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1286 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1287 U_BOOT_ITS_DEPS += u-boot
1289 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1290 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1291 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1295 ifdef CONFIG_SPL_LOAD_FIT
1296 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1297 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1298 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1299 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1300 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1302 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1303 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1304 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1305 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1306 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1307 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1308 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1309 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1312 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1314 # Some boards have the kwbimage.cfg file written in advance, while some
1315 # other boards generate it on the fly during the build in the build tree.
1316 # Let's check if the file exists in the build tree first, otherwise we
1317 # fall back to use the one in the source tree.
1318 KWD_CONFIG_FILE = $(shell \
1319 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1320 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1322 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1325 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1326 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1328 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \
1329 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1330 $(if $(KEYDIR),-k $(KEYDIR))
1332 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1333 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1335 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1336 UBOOT_BIN := u-boot-with-dtb.bin
1338 UBOOT_BIN := u-boot.bin
1341 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1342 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
1343 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1344 ,$(UBOOT_BIN)) FORCE
1345 $(call if_changed,mkimage)
1348 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1349 MKIMAGEFLAGS_u-boot.itb =
1351 MKIMAGEFLAGS_u-boot.itb = -E
1354 u-boot.itb: u-boot-nodtb.bin \
1355 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1357 $(call if_changed,mkfitimage)
1360 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1361 $(call if_changed,mkimage)
1363 u-boot.sha1: u-boot.bin
1364 tools/ubsha1 u-boot.bin
1367 $(OBJDUMP) -d $< > $@
1369 ifneq ($(CONFIG_SPL_PAYLOAD),)
1370 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1372 SPL_PAYLOAD := u-boot.bin
1375 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1377 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1378 --pad-to=$(CONFIG_SPL_PAD_TO)
1379 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1380 $(call if_changed,pad_cat)
1382 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
1383 MKIMAGEFLAGS_u-boot-tpl.img = -n $(CONFIG_SYS_SOC) -T rksd
1384 tpl/u-boot-tpl.img: tpl/u-boot-tpl.bin FORCE
1385 $(call if_changed,mkimage)
1386 idbloader.img: tpl/u-boot-tpl.img spl/u-boot-spl.bin FORCE
1387 $(call if_changed,cat)
1390 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1391 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1393 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1394 $(call if_changed,mkimage)
1396 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1398 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1399 $(call if_changed,objcopy)
1401 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1403 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1404 $(call if_changed,objcopy)
1406 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1407 $(call if_changed,cat)
1409 CLEAN_FILES += lpc32xx-*
1412 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1413 --pad-to=$(CONFIG_TPL_PAD_TO)
1414 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1415 $(call if_changed,pad_cat)
1417 SPL: spl/u-boot-spl.bin FORCE
1418 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1420 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1421 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1422 u-boot.cnt: u-boot.bin FORCE
1423 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1425 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1426 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1428 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1429 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1433 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1434 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1436 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1438 u-boot.ubl: u-boot-with-spl.bin FORCE
1439 $(call if_changed,mkimage)
1441 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1442 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1443 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1444 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1445 $(call if_changed,mkimage)
1447 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1448 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1449 $(call if_changed,pad_cat)
1451 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1452 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1453 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1454 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1456 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1457 # Both images are created using mkimage (crc etc), so that the ROM
1458 # bootloader can check its integrity. Padding needs to be done to the
1459 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1460 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1461 # The resulting image containing both U-Boot images is called u-boot.spr
1462 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1463 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1464 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1465 $(call if_changed,mkimage)
1467 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1469 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1470 $(call if_changed,pad_cat)
1472 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1473 quiet_cmd_socboot = SOCBOOT $@
1474 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1475 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1476 u-boot.img > $@ || rm -f $@
1477 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1478 $(call if_changed,socboot)
1480 quiet_cmd_socnandboot = SOCNANDBOOT $@
1481 cmd_socnandboot = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1482 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1483 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1484 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1485 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1486 u-boot.img > $@ || rm -f $@ spl/u-boot-spl.pad
1487 u-boot-with-nand-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1488 $(call if_changed,socnandboot)
1492 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1493 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1494 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1495 $(call if_changed,binman)
1497 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1498 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1499 u-boot-br.bin: u-boot FORCE
1500 $(call if_changed,objcopy)
1504 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1505 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1506 # the middle. This is handled by binman based on an image description in the
1507 # board's device tree.
1508 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1509 rom: u-boot.rom FORCE
1511 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1512 $(call if_changed,copy)
1514 quiet_cmd_ldr = LD $@
1515 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1516 $(filter-out FORCE,$^) -o $@
1518 u-boot.rom: u-boot-x86-start16.bin u-boot-x86-reset16.bin u-boot.bin \
1519 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1520 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
1521 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1522 $(call if_changed,binman)
1524 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1525 u-boot-x86-start16.bin: u-boot FORCE
1526 $(call if_changed,objcopy)
1528 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1529 u-boot-x86-reset16.bin: u-boot FORCE
1530 $(call if_changed,objcopy)
1533 ifneq ($(CONFIG_ARCH_SUNXI),)
1534 ifeq ($(CONFIG_ARM64),)
1535 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1536 $(call if_changed,binman)
1538 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1539 $(call if_changed,cat)
1543 ifneq ($(CONFIG_TEGRA),)
1544 ifneq ($(CONFIG_BINMAN),)
1545 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1546 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1547 spl/%-spl %.bin FORCE
1548 $(call if_changed,binman)
1550 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1551 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1552 $(call if_changed,pad_cat)
1554 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1555 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1556 $(call if_changed,pad_cat)
1558 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1559 $(call if_changed,copy)
1563 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1564 u-boot-app.efi: u-boot FORCE
1565 $(call if_changed,zobjcopy)
1567 u-boot.bin.o: u-boot.bin FORCE
1568 $(call if_changed,efipayload)
1570 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1571 $(call if_changed_dep,cpp_lds)
1573 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1574 quiet_cmd_u-boot_payload ?= LD $@
1575 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1576 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1577 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1578 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1580 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1581 $(call if_changed,u-boot_payload)
1583 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1584 u-boot-payload.efi: u-boot-payload FORCE
1585 $(call if_changed,zobjcopy)
1587 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1588 $(call if_changed,cat)
1590 #Add a target to create boot binary having SPL binary in PBI format
1591 #concatenated with u-boot binary. It is need by PowerPC SoC having
1592 #internal SRAM <= 512KB.
1593 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1594 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1595 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1597 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1598 $(call if_changed,mkimage)
1601 UBOOT_BINLOAD := u-boot.img
1603 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1604 UBOOT_BINLOAD := u-boot-with-dtb.bin
1606 UBOOT_BINLOAD := u-boot.bin
1610 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1613 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1614 $(call if_changed,pad_cat)
1616 # PPC4xx needs the SPL at the end of the image, since the reset vector
1617 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1618 # and need to introduce a new build target with the full blown U-Boot
1619 # at the start padded up to the start of the SPL image. And then concat
1620 # the SPL image to the end.
1622 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1623 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1624 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1625 $(call if_changed,pad_cat)
1627 # Create a new ELF from a raw binary file.
1628 ifndef PLATFORM_ELFENTRY
1629 PLATFORM_ELFENTRY = "_start"
1631 quiet_cmd_u-boot-elf ?= LD $@
1632 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1633 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1634 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1635 u-boot.elf: u-boot.bin
1636 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1637 $(call if_changed,u-boot-elf)
1639 # MediaTek's ARM-based u-boot needs a header to contains its load address
1640 # which is parsed by the BootROM.
1641 # If the SPL build is enabled, the header will be added to the spl binary,
1642 # and the spl binary and the u-boot.img will be combined into one file.
1643 # Otherwise the header will be added to the u-boot.bin directly.
1645 ifeq ($(CONFIG_SPL),y)
1646 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1648 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1649 $(call if_changed,binman)
1651 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1652 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1653 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1655 u-boot-mtk.bin: u-boot.bin FORCE
1656 $(call if_changed,mkimage)
1659 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1661 # Rule to link u-boot
1662 # May be overridden by arch/$(ARCH)/config.mk
1663 quiet_cmd_u-boot__ ?= LD $@
1664 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1665 -T u-boot.lds $(u-boot-init) \
1666 --start-group $(u-boot-main) --end-group \
1667 $(PLATFORM_LIBS) -Map u-boot.map; \
1668 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1670 quiet_cmd_smap = GEN common/system_map.o
1672 smap=`$(call SYSTEM_MAP,u-boot) | \
1673 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1674 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1675 -c $(srctree)/common/system_map.c -o common/system_map.o
1677 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1678 +$(call if_changed,u-boot__)
1679 ifeq ($(CONFIG_KALLSYMS),y)
1681 $(call cmd,u-boot__) common/system_map.o
1684 ifeq ($(CONFIG_RISCV),y)
1685 @tools/prelink-riscv $@ 0
1688 quiet_cmd_sym ?= SYM $@
1689 cmd_sym ?= $(OBJDUMP) -t $< > $@
1690 u-boot.sym: u-boot FORCE
1691 $(call if_changed,sym)
1693 # The actual objects are generated when descending,
1694 # make sure no implicit rule kicks in
1695 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1697 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1698 # Preset locale variables to speed up the build process. Limit locale
1699 # tweaks to this spot to avoid wrong language settings when running
1700 # make menuconfig etc.
1701 # Error messages still appears in the original language
1703 PHONY += $(u-boot-dirs)
1704 $(u-boot-dirs): prepare scripts
1705 $(Q)$(MAKE) $(build)=$@
1708 # The "tools" are needed early
1709 $(filter-out tools, $(u-boot-dirs)): tools
1710 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1711 # is "yes"), so compile examples after U-Boot is compiled.
1712 examples: $(filter-out examples, $(u-boot-dirs))
1714 define filechk_uboot.release
1715 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1718 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1719 include/config/uboot.release: include/config/auto.conf FORCE
1720 $(call filechk,uboot.release)
1723 # Things we need to do before we recursively start building the kernel
1724 # or the modules are listed in "prepare".
1725 # A multi level approach is used. prepareN is processed before prepareN-1.
1726 # archprepare is used in arch Makefiles and when processed asm symlink,
1727 # version.h and scripts_basic is processed / created.
1729 # Listed in dependency order
1730 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1732 # prepare3 is used to check if we are building in a separate output directory,
1734 # 1) Check that make has not been executed in the kernel src $(srctree)
1735 prepare3: include/config/uboot.release
1736 ifneq ($(KBUILD_SRC),)
1737 @$(kecho) ' Using $(srctree) as source for U-Boot'
1738 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1739 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1740 echo >&2 " in the '$(srctree)' directory.";\
1745 # prepare2 creates a makefile if using a separate output directory
1746 prepare2: prepare3 outputmakefile cfg
1748 prepare1: prepare2 $(version_h) $(timestamp_h) \
1749 include/config/auto.conf
1750 ifeq ($(wildcard $(LDSCRIPT)),)
1751 @echo >&2 " Could not find linker script."
1755 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1756 prepare1: $(defaultenv_h)
1759 archprepare: prepare1 scripts_basic
1761 prepare0: archprepare FORCE
1762 $(Q)$(MAKE) $(build)=.
1764 # All the preparing..
1767 # Generate some files
1768 # ---------------------------------------------------------------------------
1770 define filechk_version.h
1771 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1772 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1773 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1774 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1777 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1778 # The BSD date on the other hand behaves different and would produce errors
1779 # with the misused '-d' switch. Respect that and search a working date with
1780 # well known pre- and suffixes for the GNU variant of date.
1781 define filechk_timestamp.h
1782 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1783 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1785 for date in gdate date.gnu date; do \
1786 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1788 if test -n "$${DATE}"; then \
1789 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1790 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1791 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1792 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1793 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1798 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1799 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1800 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1801 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1802 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1806 define filechk_defaultenv.h
1810 sed -e 's/\\\x0/\n/g' | \
1811 xxd -i ; echo ", 0x00" ; )
1814 $(version_h): include/config/uboot.release FORCE
1815 $(call filechk,version.h)
1817 $(timestamp_h): $(srctree)/Makefile FORCE
1818 $(call filechk,timestamp.h)
1820 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1821 $(call filechk,defaultenv.h)
1823 # ---------------------------------------------------------------------------
1824 quiet_cmd_cpp_lds = LDS $@
1825 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1826 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1828 u-boot.lds: $(LDSCRIPT) prepare FORCE
1829 $(call if_changed_dep,cpp_lds)
1831 spl/u-boot-spl.bin: spl/u-boot-spl
1835 spl/u-boot-spl: tools prepare \
1836 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1837 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1838 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1840 spl/sunxi-spl.bin: spl/u-boot-spl
1843 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1846 spl/u-boot-spl.sfp: spl/u-boot-spl
1849 spl/boot.bin: spl/u-boot-spl
1852 tpl/u-boot-tpl.bin: tools prepare \
1853 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1854 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1857 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1863 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1864 -name '*.[chS]' -print`
1868 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1869 -name '*.[chS]' -print`
1871 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1873 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
1874 grep -xvf - cscope.files > cscope.files.no-symlinks; \
1875 mv cscope.files.no-symlinks cscope.files
1880 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1883 @$(call SYSTEM_MAP,$<) > $@
1885 #########################################################################
1887 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1888 # R_AARCH64_RELATIVE (64-bit).
1889 checkarmreloc: u-boot
1890 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1891 grep R_A | sort -u`"; \
1892 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1893 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1894 echo "$< contains unexpected relocations: $$RELOC"; \
1898 tools/version.h: include/version.h
1899 $(call if_changed,copy)
1901 envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h
1902 $(Q)$(MAKE) $(build)=tools/env
1904 tools-only: export TOOLS_ONLY=y
1905 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
1906 $(Q)$(MAKE) $(build)=tools
1908 tools-all: export HOST_TOOLS_ALL=y
1909 tools-all: envtools tools ;
1911 cross_tools: export CROSS_BUILD_TOOLS=y
1912 cross_tools: tools ;
1916 git log --no-merges U-Boot-1_1_5.. | \
1917 unexpand -a | sed -e 's/\s\s*$$//' > $@
1919 #########################################################################
1922 # Cleaning is done on three levels.
1923 # make clean Delete most generated files
1924 # Leave enough to build external modules
1925 # make mrproper Delete the current configuration, and all generated files
1926 # make distclean Remove editor backup files, patch leftover files and the like
1928 # Directories & files removed with 'make clean'
1929 CLEAN_DIRS += $(MODVERDIR) \
1930 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1931 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1933 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \
1934 boot* u-boot* MLO* SPL System.map fit-dtb.blob*
1936 # Directories & files removed with 'make mrproper'
1937 MRPROPER_DIRS += include/config include/generated spl tpl \
1939 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1940 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1941 drivers/video/fonts/*.S
1943 # clean - Delete most, but leave enough to build external modules
1945 clean: rm-dirs := $(CLEAN_DIRS)
1946 clean: rm-files := $(CLEAN_FILES)
1948 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1950 clean-dirs := $(addprefix _clean_, $(clean-dirs))
1952 PHONY += $(clean-dirs) clean archclean
1954 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1956 clean: $(clean-dirs)
1959 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1960 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1961 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
1962 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1963 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1964 -o -name '*.symtypes' -o -name 'modules.order' \
1965 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1966 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1967 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1968 -type f -print | xargs rm -f \
1969 bl31.c bl31.elf bl31_*.bin image.map tispl.bin*
1971 # mrproper - Delete all generated files, including .config
1973 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1974 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1975 mrproper-dirs := $(addprefix _mrproper_,scripts)
1977 PHONY += $(mrproper-dirs) mrproper archmrproper
1979 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1981 mrproper: clean $(mrproper-dirs)
1984 @rm -f arch/*/include/asm/arch
1991 @find $(srctree) $(RCS_FIND_IGNORE) \
1992 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1993 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1994 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1995 -o -name '*.pyc' \) \
1996 -type f -print | xargs rm -f
1997 @rm -f boards.cfg CHANGELOG
2000 F=`basename $(srctree)` ; cd .. ; \
2001 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2004 @echo 'Cleaning targets:'
2005 @echo ' clean - Remove most generated files but keep the config'
2006 @echo ' mrproper - Remove all generated files + config + various backup files'
2007 @echo ' distclean - mrproper + remove editor backup and patch files'
2009 @echo 'Configuration targets:'
2010 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2012 @echo 'Test targets:'
2014 @echo ' check - Run all automated tests that use sandbox'
2015 @echo ' qcheck - Run quick automated tests that use sandbox'
2017 @echo 'Other generic targets:'
2018 @echo ' all - Build all necessary images depending on configuration'
2019 @echo ' tests - Build U-Boot for sandbox and run tests'
2020 @echo '* u-boot - Build the bare u-boot'
2021 @echo ' dir/ - Build all files in dir and below'
2022 @echo ' dir/file.[oisS] - Build specified target only'
2023 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
2024 @echo ' (requires a recent binutils and recent build (System.map))'
2025 @echo ' tags/ctags - Generate ctags file for editors'
2026 @echo ' etags - Generate etags file for editors'
2027 @echo ' cscope - Generate cscope index'
2028 @echo ' ubootrelease - Output the release version string (use with make -s)'
2029 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
2030 @echo " cfg - Don't build, just create the .cfg files"
2031 @echo " envtools - Build only the target-side environment tools"
2033 @echo 'Static analysers'
2034 @echo ' checkstack - Generate a list of stack hogs'
2035 @echo ' coccicheck - Execute static code analysis with Coccinelle'
2037 @echo 'Documentation targets:'
2038 @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2040 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2041 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
2042 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
2043 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
2044 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
2045 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2046 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
2047 @echo ' 1: warnings which may be relevant and do not occur too often'
2048 @echo ' 2: warnings which occur quite often but may still be relevant'
2049 @echo ' 3: more obscure warnings, can most likely be ignored'
2050 @echo ' Multiple levels can be combined with W=12 or W=123'
2052 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
2053 @echo 'For further info see the ./README file'
2059 $(srctree)/test/run quick
2061 # Documentation targets
2062 # ---------------------------------------------------------------------------
2063 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2064 linkcheckdocs dochelp refcheckdocs
2065 PHONY += $(DOC_TARGETS)
2066 $(DOC_TARGETS): scripts_basic FORCE
2067 $(Q)$(MAKE) $(build)=doc $@
2069 endif #ifeq ($(config-targets),1)
2070 endif #ifeq ($(mixed-targets),1)
2072 PHONY += checkstack ubootrelease ubootversion
2075 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2076 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2079 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
2082 @echo $(UBOOTVERSION)
2085 # ---------------------------------------------------------------------------
2086 # Single targets are compatible with:
2087 # - build with mixed source and output
2088 # - build with separate output dir 'make O=...'
2089 # - external modules
2091 # target-dir => where to store outputfile
2092 # build-dir => directory in kernel source tree to use
2094 ifeq ($(KBUILD_EXTMOD),)
2095 build-dir = $(patsubst %/,%,$(dir $@))
2096 target-dir = $(dir $@)
2098 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2099 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2100 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2103 %.s: %.c prepare scripts FORCE
2104 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2105 %.i: %.c prepare scripts FORCE
2106 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2107 %.o: %.c prepare scripts FORCE
2108 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2109 %.lst: %.c prepare scripts FORCE
2110 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2111 %.s: %.S prepare scripts FORCE
2112 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2113 %.o: %.S prepare scripts FORCE
2114 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2115 %.symtypes: %.c prepare scripts FORCE
2116 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2119 /: prepare scripts FORCE
2121 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2122 $(build)=$(build-dir)
2123 %/: prepare scripts FORCE
2125 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2126 $(build)=$(build-dir)
2127 %.ko: prepare scripts FORCE
2129 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2130 $(build)=$(build-dir) $(@:.ko=.o)
2131 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2133 quiet_cmd_genenv = GENENV $@
2134 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2135 sed --in-place -e 's/\x00/\x0A/g' $@
2137 u-boot-initial-env: u-boot.bin
2138 $(call if_changed,genenv)
2140 # Consistency checks
2141 # ---------------------------------------------------------------------------
2146 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2148 # FIXME Should go into a make.lib or something
2149 # ===========================================================================
2151 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
2152 cmd_rmdirs = rm -rf $(rm-dirs)
2154 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
2155 cmd_rmfiles = rm -f $(rm-files)
2157 # read all saved command lines
2159 targets := $(wildcard $(sort $(targets)))
2160 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
2162 ifneq ($(cmd_files),)
2163 $(cmd_files): ; # Do not try to update included dependency files
2164 include $(cmd_files)
2167 endif # skip-makefile
2172 # Declare the contents of the .PHONY variable as phony. We keep that
2173 # information in a variable so we can use it in if_changed and friends.