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_OVERLAY) += test/overlay/
775 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
777 libs-y := $(sort $(libs-y))
779 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
781 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
783 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
785 u-boot-init := $(head-y)
786 u-boot-main := $(libs-y)
790 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
791 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
793 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
795 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
797 ifdef CONFIG_CC_COVERAGE
798 KBUILD_CFLAGS += --coverage
799 PLATFORM_LIBGCC += -lgcov
803 export PLATFORM_LIBGCC
805 # Special flags for CPP when processing the linker script.
806 # Pass the version down so we can handle backwards compatibility
809 -include $(srctree)/include/u-boot/u-boot.lds.h \
811 $(shell $(LD) --version | \
812 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
814 #########################################################################
815 #########################################################################
817 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
818 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
823 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0)
824 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
829 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0)
830 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
835 # Statically apply RELA-style relocations (currently arm64 only)
836 # This is useful for arm64 where static relocation needs to be performed on
837 # the raw binary, but certain simulators only accept an ELF file (but don't
838 # do the relocation).
839 ifneq ($(CONFIG_STATIC_RELA),)
840 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
842 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
843 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
844 tools/relocate-rela $(2) $(3) $$start $$end
849 # Always append ALL so that arch config.mk's can add custom ones
850 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
852 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
853 ifeq ($(CONFIG_SPL_FSL_PBL),y)
854 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
856 ifneq ($(CONFIG_SECURE_BOOT), y)
857 # For Secure Boot The Image needs to be signed and Header must also
858 # be included. So The image has to be built explicitly
859 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
862 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
863 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
864 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
866 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
867 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
869 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
872 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
873 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
874 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
875 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
877 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
878 ifneq ($(CONFIG_SPL_TARGET),)
879 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
881 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
882 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
883 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
885 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
886 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
889 # Build a combined spl + u-boot image for sunxi
890 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
891 ALL-y += u-boot-sunxi-with-spl.bin
894 # enable combined SPL/u-boot/dtb rules for tegra
895 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
896 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
897 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
900 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
902 # Add optional build target if defined in board/cpu/soc headers
903 ifneq ($(CONFIG_BUILD_TARGET),)
904 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
907 ifdef CONFIG_INIT_SP_RELATIVE
908 ALL-y += init_sp_bss_offset_check
911 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
912 ALL-y += u-boot-with-dtb.bin
915 ifeq ($(CONFIG_ARCH_ROCKCHIP)$(CONFIG_SPL)$(CONFIG_TPL),yyy)
916 ALL-y += idbloader.img
919 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
921 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
922 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
924 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
925 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
928 # Normally we fill empty space with 0xff
929 quiet_cmd_objcopy = OBJCOPY $@
930 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
931 $(OBJCOPYFLAGS_$(@F)) $< $@
933 # Provide a version which does not do this, for use by EFI
934 quiet_cmd_zobjcopy = OBJCOPY $@
935 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
937 quiet_cmd_efipayload = OBJCOPY $@
938 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
940 MKIMAGEOUTPUT ?= /dev/null
942 quiet_cmd_mkimage = MKIMAGE $@
943 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
944 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
946 quiet_cmd_mkfitimage = MKIMAGE $@
947 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\
948 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
950 quiet_cmd_cat = CAT $@
951 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
953 append = cat $(filter-out $< $(PHONY), $^) >> $@
955 quiet_cmd_pad_cat = CAT $@
956 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
960 quiet_cmd_cfgcheck = CFGCHK $2
961 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
962 $(srctree)/scripts/config_whitelist.txt $(srctree)
965 ifeq ($(CONFIG_DEPRECATED),y)
966 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
967 ifeq ($(CONFIG_SPI),y)
968 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
969 $(warning "The relevant config item with associated code will remove in v2019.07 release.")
973 ifneq ($(CONFIG_DM),y)
974 @echo >&2 "===================== WARNING ======================"
975 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
976 @echo >&2 "compulsory starting with the v2020.01 release."
977 @echo >&2 "Failure to update may result in board removal."
978 @echo >&2 "See doc/driver-model/migration.rst for more info."
979 @echo >&2 "===================================================="
981 ifeq ($(CONFIG_MMC),y)
982 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
983 @echo >&2 "===================== WARNING ======================"
984 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
985 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
986 @echo >&2 "Failure to update by the deadline may result in board removal."
987 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
988 @echo >&2 "===================================================="
991 ifeq ($(CONFIG_USB),y)
992 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
993 @echo >&2 "===================== WARNING ======================"
994 @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
995 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
996 @echo >&2 "Failure to update by the deadline may result in board removal."
997 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
998 @echo >&2 "===================================================="
1001 ifeq ($(CONFIG_MVSATA_IDE),y)
1002 @echo >&2 "===================== WARNING ======================"
1003 @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
1004 @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
1005 @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
1006 @echo >&2 "release."
1007 @echo >&2 "Failure to update by the deadline may result in board removal."
1008 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1009 @echo >&2 "===================================================="
1011 ifeq ($(CONFIG_LIBATA),y)
1012 ifneq ($(CONFIG_AHCI),y)
1013 @echo >&2 "===================== WARNING ======================"
1014 @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
1015 @echo >&2 "enabled. Please update the storage controller driver to use"
1016 @echo >&2 "CONFIG_AHCI before the v2019.07 release."
1017 @echo >&2 "Failure to update by the deadline may result in board removal."
1018 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1019 @echo >&2 "===================================================="
1022 ifeq ($(CONFIG_PCI),y)
1023 ifneq ($(CONFIG_DM_PCI),y)
1024 @echo >&2 "===================== WARNING ======================"
1025 @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
1026 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
1027 @echo >&2 "Failure to update by the deadline may result in board removal."
1028 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1029 @echo >&2 "===================================================="
1032 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
1033 ifneq ($(CONFIG_DM_VIDEO),y)
1034 @echo >&2 "===================== WARNING ======================"
1035 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
1036 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
1037 @echo >&2 "Failure to update by the deadline may result in board removal."
1038 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1039 @echo >&2 "===================================================="
1042 ifeq ($(CONFIG_OF_EMBED),y)
1043 @echo >&2 "===================== WARNING ======================"
1044 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1045 @echo >&2 "be used for debugging purposes. Please use"
1046 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1047 @echo >&2 "See doc/README.fdt-control for more info."
1048 @echo >&2 "===================================================="
1050 ifeq ($(CONFIG_SPI_FLASH),y)
1051 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1052 @echo >&2 "===================== WARNING ======================"
1053 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1054 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1055 @echo >&2 "Failure to update by the deadline may result in board removal."
1056 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1057 @echo >&2 "===================================================="
1060 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1061 ifneq ($(CONFIG_WDT),y)
1062 @echo >&2 "===================== WARNING ======================"
1063 @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1064 @echo >&2 "Please update the board to use CONFIG_WDT before the"
1065 @echo >&2 "v2019.10 release."
1066 @echo >&2 "Failure to update by the deadline may result in board removal."
1067 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1068 @echo >&2 "===================================================="
1071 ifneq ($(CONFIG_NET),)
1072 ifneq ($(CONFIG_DM_ETH),y)
1073 @echo >&2 "===================== WARNING ======================"
1074 @echo >&2 "This board does not use CONFIG_DM_ETH (Driver Model"
1075 @echo >&2 "for Ethernet drivers). Please update the board to use"
1076 @echo >&2 "CONFIG_DM_ETH before the v2020.07 release. Failure to"
1077 @echo >&2 "update by the deadline may result in board removal."
1078 @echo >&2 "See doc/driver-model/migration.rst for more info."
1079 @echo >&2 "===================================================="
1082 @# Check that this build does not use CONFIG options that we do not
1083 @# know about unless they are in Kconfig. All the existing CONFIG
1084 @# options are whitelisted, so new ones should not be added.
1085 $(call cmd,cfgcheck,u-boot.cfg)
1091 $(Q)$(MAKE) $(build)=dts dtbs
1093 quiet_cmd_copy = COPY $@
1096 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1098 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1099 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1100 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1101 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1103 FINAL_DTB_CONTAINER = fit-dtb.blob
1106 fit-dtb.blob.gz: fit-dtb.blob
1109 fit-dtb.blob.lzo: fit-dtb.blob
1112 fit-dtb.blob: dts/dt.dtb FORCE
1113 $(call if_changed,mkimage)
1114 ifneq ($(SOURCE_DATE_EPOCH),)
1115 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1116 chmod 0600 fit-dtb.blob
1119 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1121 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1124 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1125 $(call if_changed,cat)
1127 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1128 $(call if_changed,cat)
1131 u-boot.bin: u-boot-fit-dtb.bin FORCE
1132 $(call if_changed,copy)
1134 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1135 $(call if_changed,cat)
1137 else ifeq ($(CONFIG_OF_SEPARATE),y)
1138 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1139 $(call if_changed,cat)
1141 u-boot.bin: u-boot-dtb.bin FORCE
1142 $(call if_changed,copy)
1144 u-boot.bin: u-boot-nodtb.bin FORCE
1145 $(call if_changed,copy)
1148 # we call Makefile in arch/arm/mach-imx which
1149 # has targets which are dependent on targets defined
1150 # here. make could not resolve them and we must ensure
1151 # that they are finished before calling imx targets
1152 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1153 IMX_DEPS = u-boot-fit-dtb.bin
1156 %.imx: $(IMX_DEPS) %.bin
1157 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1161 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1163 quiet_cmd_copy = COPY $@
1166 u-boot.dtb: dts/dt.dtb
1169 OBJCOPYFLAGS_u-boot.hex := -O ihex
1171 OBJCOPYFLAGS_u-boot.srec := -O srec
1173 u-boot.hex u-boot.srec: u-boot FORCE
1174 $(call if_changed,objcopy)
1176 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1178 u-boot-elf.srec: u-boot.elf FORCE
1179 $(call if_changed,objcopy)
1181 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1183 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1184 $(call if_changed,objcopy)
1187 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1189 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1190 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1191 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1193 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1195 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1196 $(call if_changed,objcopy)
1198 binary_size_check: u-boot-nodtb.bin FORCE
1199 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1200 map_size=$(shell cat u-boot.map | \
1201 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1204 if [ "" != "$$map_size" ]; then \
1205 if test $$map_size -ne $$file_size; then \
1206 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1207 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1212 ifdef CONFIG_INIT_SP_RELATIVE
1213 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1214 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1216 subtract_sys_malloc_f_len = true
1218 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1219 # so low that the DTB could probably use 90%+ of the available space, for
1220 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1221 # safe for now and tweak this later if space becomes tight.
1222 # A rejected alternative would be to check that some absolute minimum stack
1223 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1224 # deliberately build-specific, to take account of build-to-build stack usage
1225 # differences due to different feature sets, there is no common absolute value
1227 init_sp_bss_offset_check: u-boot.dtb FORCE
1228 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1229 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1230 $(subtract_sys_malloc_f_len) ; \
1231 quarter_space=$$(($${space} / 4)) ; \
1232 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1233 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1234 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1239 u-boot-nodtb.bin: u-boot FORCE
1240 $(call if_changed,objcopy)
1241 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1246 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1250 # ---------------------------------------------------------------------------
1251 # Use 'make BINMAN_DEBUG=1' to enable debugging
1252 quiet_cmd_binman = BINMAN $@
1253 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1254 --toolpath $(objtree)/tools \
1255 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1256 build -u -d u-boot.dtb -O . -m \
1257 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1260 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1262 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1264 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1265 $(call if_changed,objcopy)
1268 # U-Boot entry point, needed for booting of full-blown U-Boot
1269 # from the SPL U-Boot version.
1271 ifndef CONFIG_SYS_UBOOT_START
1272 CONFIG_SYS_UBOOT_START := 0
1275 # Boards with more complex image requirements can provide an .its source file
1276 # or a generator script
1277 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1278 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1280 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1281 U_BOOT_ITS := u-boot.its
1282 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1283 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1285 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1286 U_BOOT_ITS_DEPS += u-boot
1288 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1289 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1290 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1294 ifdef CONFIG_SPL_LOAD_FIT
1295 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1296 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1297 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1298 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1299 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1301 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1302 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1303 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1304 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1305 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1306 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1307 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1308 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1311 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1313 # Some boards have the kwbimage.cfg file written in advance, while some
1314 # other boards generate it on the fly during the build in the build tree.
1315 # Let's check if the file exists in the build tree first, otherwise we
1316 # fall back to use the one in the source tree.
1317 KWD_CONFIG_FILE = $(shell \
1318 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1319 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1321 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1324 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1325 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1327 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \
1328 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1329 $(if $(KEYDIR),-k $(KEYDIR))
1331 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1332 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1334 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1335 UBOOT_BIN := u-boot-with-dtb.bin
1337 UBOOT_BIN := u-boot.bin
1340 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1341 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
1342 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1343 ,$(UBOOT_BIN)) FORCE
1344 $(call if_changed,mkimage)
1347 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1348 MKIMAGEFLAGS_u-boot.itb =
1350 MKIMAGEFLAGS_u-boot.itb = -E
1353 u-boot.itb: u-boot-nodtb.bin \
1354 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1356 $(call if_changed,mkfitimage)
1359 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1360 $(call if_changed,mkimage)
1362 u-boot.sha1: u-boot.bin
1363 tools/ubsha1 u-boot.bin
1366 $(OBJDUMP) -d $< > $@
1368 ifneq ($(CONFIG_SPL_PAYLOAD),)
1369 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1371 SPL_PAYLOAD := u-boot.bin
1374 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1376 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1377 --pad-to=$(CONFIG_SPL_PAD_TO)
1378 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1379 $(call if_changed,pad_cat)
1381 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
1382 MKIMAGEFLAGS_u-boot-tpl.img = -n $(CONFIG_SYS_SOC) -T rksd
1383 tpl/u-boot-tpl.img: tpl/u-boot-tpl.bin FORCE
1384 $(call if_changed,mkimage)
1385 idbloader.img: tpl/u-boot-tpl.img spl/u-boot-spl.bin FORCE
1386 $(call if_changed,cat)
1389 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1390 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1392 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1393 $(call if_changed,mkimage)
1395 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1397 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1398 $(call if_changed,objcopy)
1400 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1402 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1403 $(call if_changed,objcopy)
1405 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1406 $(call if_changed,cat)
1408 CLEAN_FILES += lpc32xx-*
1411 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1412 --pad-to=$(CONFIG_TPL_PAD_TO)
1413 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1414 $(call if_changed,pad_cat)
1416 SPL: spl/u-boot-spl.bin FORCE
1417 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1419 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1420 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1421 u-boot.cnt: u-boot.bin FORCE
1422 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1424 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1425 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1427 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1428 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1432 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1433 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1435 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1437 u-boot.ubl: u-boot-with-spl.bin FORCE
1438 $(call if_changed,mkimage)
1440 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1441 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1442 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1443 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1444 $(call if_changed,mkimage)
1446 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1447 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1448 $(call if_changed,pad_cat)
1450 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1451 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1452 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1453 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1455 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1456 # Both images are created using mkimage (crc etc), so that the ROM
1457 # bootloader can check its integrity. Padding needs to be done to the
1458 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1459 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1460 # The resulting image containing both U-Boot images is called u-boot.spr
1461 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1462 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1463 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1464 $(call if_changed,mkimage)
1466 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1468 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1469 $(call if_changed,pad_cat)
1471 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1472 quiet_cmd_socboot = SOCBOOT $@
1473 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1474 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1475 u-boot.img > $@ || rm -f $@
1476 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1477 $(call if_changed,socboot)
1480 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1481 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1482 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1483 $(call if_changed,binman)
1485 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1486 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1487 u-boot-br.bin: u-boot FORCE
1488 $(call if_changed,objcopy)
1492 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1493 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1494 # the middle. This is handled by binman based on an image description in the
1495 # board's device tree.
1496 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1497 rom: u-boot.rom FORCE
1499 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1500 $(call if_changed,copy)
1502 quiet_cmd_ldr = LD $@
1503 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1504 $(filter-out FORCE,$^) -o $@
1506 u-boot.rom: u-boot-x86-start16.bin u-boot-x86-reset16.bin u-boot.bin \
1507 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1508 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
1509 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1510 $(call if_changed,binman)
1512 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1513 u-boot-x86-start16.bin: u-boot FORCE
1514 $(call if_changed,objcopy)
1516 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1517 u-boot-x86-reset16.bin: u-boot FORCE
1518 $(call if_changed,objcopy)
1521 ifneq ($(CONFIG_ARCH_SUNXI),)
1522 ifeq ($(CONFIG_ARM64),)
1523 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1524 $(call if_changed,binman)
1526 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1527 $(call if_changed,cat)
1531 ifneq ($(CONFIG_TEGRA),)
1532 ifneq ($(CONFIG_BINMAN),)
1533 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1534 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1535 spl/%-spl %.bin FORCE
1536 $(call if_changed,binman)
1538 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1539 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1540 $(call if_changed,pad_cat)
1542 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1543 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1544 $(call if_changed,pad_cat)
1546 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1547 $(call if_changed,copy)
1551 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1552 u-boot-app.efi: u-boot FORCE
1553 $(call if_changed,zobjcopy)
1555 u-boot.bin.o: u-boot.bin FORCE
1556 $(call if_changed,efipayload)
1558 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1559 $(call if_changed_dep,cpp_lds)
1561 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1562 quiet_cmd_u-boot_payload ?= LD $@
1563 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1564 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1565 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1566 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1568 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1569 $(call if_changed,u-boot_payload)
1571 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1572 u-boot-payload.efi: u-boot-payload FORCE
1573 $(call if_changed,zobjcopy)
1575 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1576 $(call if_changed,cat)
1578 #Add a target to create boot binary having SPL binary in PBI format
1579 #concatenated with u-boot binary. It is need by PowerPC SoC having
1580 #internal SRAM <= 512KB.
1581 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1582 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1583 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1585 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1586 $(call if_changed,mkimage)
1589 UBOOT_BINLOAD := u-boot.img
1591 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1592 UBOOT_BINLOAD := u-boot-with-dtb.bin
1594 UBOOT_BINLOAD := u-boot.bin
1598 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1601 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1602 $(call if_changed,pad_cat)
1604 # PPC4xx needs the SPL at the end of the image, since the reset vector
1605 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1606 # and need to introduce a new build target with the full blown U-Boot
1607 # at the start padded up to the start of the SPL image. And then concat
1608 # the SPL image to the end.
1610 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1611 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1612 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1613 $(call if_changed,pad_cat)
1615 # Create a new ELF from a raw binary file.
1616 ifndef PLATFORM_ELFENTRY
1617 PLATFORM_ELFENTRY = "_start"
1619 quiet_cmd_u-boot-elf ?= LD $@
1620 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1621 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1622 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1623 u-boot.elf: u-boot.bin
1624 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1625 $(call if_changed,u-boot-elf)
1627 # MediaTek's ARM-based u-boot needs a header to contains its load address
1628 # which is parsed by the BootROM.
1629 # If the SPL build is enabled, the header will be added to the spl binary,
1630 # and the spl binary and the u-boot.img will be combined into one file.
1631 # Otherwise the header will be added to the u-boot.bin directly.
1633 ifeq ($(CONFIG_SPL),y)
1634 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1636 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1637 $(call if_changed,binman)
1639 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1640 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1641 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1643 u-boot-mtk.bin: u-boot.bin FORCE
1644 $(call if_changed,mkimage)
1647 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1649 # Rule to link u-boot
1650 # May be overridden by arch/$(ARCH)/config.mk
1651 quiet_cmd_u-boot__ ?= LD $@
1652 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1653 -T u-boot.lds $(u-boot-init) \
1654 --start-group $(u-boot-main) --end-group \
1655 $(PLATFORM_LIBS) -Map u-boot.map; \
1656 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1658 quiet_cmd_smap = GEN common/system_map.o
1660 smap=`$(call SYSTEM_MAP,u-boot) | \
1661 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1662 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1663 -c $(srctree)/common/system_map.c -o common/system_map.o
1665 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1666 +$(call if_changed,u-boot__)
1667 ifeq ($(CONFIG_KALLSYMS),y)
1669 $(call cmd,u-boot__) common/system_map.o
1672 ifeq ($(CONFIG_RISCV),y)
1673 @tools/prelink-riscv $@ 0
1676 quiet_cmd_sym ?= SYM $@
1677 cmd_sym ?= $(OBJDUMP) -t $< > $@
1678 u-boot.sym: u-boot FORCE
1679 $(call if_changed,sym)
1681 # The actual objects are generated when descending,
1682 # make sure no implicit rule kicks in
1683 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1685 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1686 # Preset locale variables to speed up the build process. Limit locale
1687 # tweaks to this spot to avoid wrong language settings when running
1688 # make menuconfig etc.
1689 # Error messages still appears in the original language
1691 PHONY += $(u-boot-dirs)
1692 $(u-boot-dirs): prepare scripts
1693 $(Q)$(MAKE) $(build)=$@
1696 # The "tools" are needed early
1697 $(filter-out tools, $(u-boot-dirs)): tools
1698 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1699 # is "yes"), so compile examples after U-Boot is compiled.
1700 examples: $(filter-out examples, $(u-boot-dirs))
1702 define filechk_uboot.release
1703 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1706 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1707 include/config/uboot.release: include/config/auto.conf FORCE
1708 $(call filechk,uboot.release)
1711 # Things we need to do before we recursively start building the kernel
1712 # or the modules are listed in "prepare".
1713 # A multi level approach is used. prepareN is processed before prepareN-1.
1714 # archprepare is used in arch Makefiles and when processed asm symlink,
1715 # version.h and scripts_basic is processed / created.
1717 # Listed in dependency order
1718 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1720 # prepare3 is used to check if we are building in a separate output directory,
1722 # 1) Check that make has not been executed in the kernel src $(srctree)
1723 prepare3: include/config/uboot.release
1724 ifneq ($(KBUILD_SRC),)
1725 @$(kecho) ' Using $(srctree) as source for U-Boot'
1726 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1727 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1728 echo >&2 " in the '$(srctree)' directory.";\
1733 # prepare2 creates a makefile if using a separate output directory
1734 prepare2: prepare3 outputmakefile cfg
1736 prepare1: prepare2 $(version_h) $(timestamp_h) \
1737 include/config/auto.conf
1738 ifeq ($(wildcard $(LDSCRIPT)),)
1739 @echo >&2 " Could not find linker script."
1743 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1744 prepare1: $(defaultenv_h)
1747 archprepare: prepare1 scripts_basic
1749 prepare0: archprepare FORCE
1750 $(Q)$(MAKE) $(build)=.
1752 # All the preparing..
1755 # Generate some files
1756 # ---------------------------------------------------------------------------
1758 define filechk_version.h
1759 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1760 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1761 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1762 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1765 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1766 # The BSD date on the other hand behaves different and would produce errors
1767 # with the misused '-d' switch. Respect that and search a working date with
1768 # well known pre- and suffixes for the GNU variant of date.
1769 define filechk_timestamp.h
1770 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1771 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1773 for date in gdate date.gnu date; do \
1774 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1776 if test -n "$${DATE}"; then \
1777 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1778 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1779 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1780 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1781 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1786 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1787 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1788 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1789 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1790 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1794 define filechk_defaultenv.h
1798 sed -e 's/\\\x0/\n/g' | \
1799 xxd -i ; echo ", 0x00" ; )
1802 $(version_h): include/config/uboot.release FORCE
1803 $(call filechk,version.h)
1805 $(timestamp_h): $(srctree)/Makefile FORCE
1806 $(call filechk,timestamp.h)
1808 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1809 $(call filechk,defaultenv.h)
1811 # ---------------------------------------------------------------------------
1812 quiet_cmd_cpp_lds = LDS $@
1813 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1814 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1816 u-boot.lds: $(LDSCRIPT) prepare FORCE
1817 $(call if_changed_dep,cpp_lds)
1819 spl/u-boot-spl.bin: spl/u-boot-spl
1823 spl/u-boot-spl: tools prepare \
1824 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1825 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1826 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1828 spl/sunxi-spl.bin: spl/u-boot-spl
1831 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1834 spl/u-boot-spl.sfp: spl/u-boot-spl
1837 spl/boot.bin: spl/u-boot-spl
1840 tpl/u-boot-tpl.bin: tools prepare \
1841 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1842 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1845 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1851 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1852 -name '*.[chS]' -print`
1856 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1857 -name '*.[chS]' -print`
1859 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1861 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
1862 grep -xvf - cscope.files > cscope.files.no-symlinks; \
1863 mv cscope.files.no-symlinks cscope.files
1868 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1871 @$(call SYSTEM_MAP,$<) > $@
1873 #########################################################################
1875 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1876 # R_AARCH64_RELATIVE (64-bit).
1877 checkarmreloc: u-boot
1878 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1879 grep R_A | sort -u`"; \
1880 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1881 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1882 echo "$< contains unexpected relocations: $$RELOC"; \
1886 tools/version.h: include/version.h
1887 $(call if_changed,copy)
1889 envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h
1890 $(Q)$(MAKE) $(build)=tools/env
1892 tools-only: export TOOLS_ONLY=y
1893 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
1894 $(Q)$(MAKE) $(build)=tools
1896 tools-all: export HOST_TOOLS_ALL=y
1897 tools-all: envtools tools ;
1899 cross_tools: export CROSS_BUILD_TOOLS=y
1900 cross_tools: tools ;
1904 git log --no-merges U-Boot-1_1_5.. | \
1905 unexpand -a | sed -e 's/\s\s*$$//' > $@
1907 #########################################################################
1910 # Cleaning is done on three levels.
1911 # make clean Delete most generated files
1912 # Leave enough to build external modules
1913 # make mrproper Delete the current configuration, and all generated files
1914 # make distclean Remove editor backup files, patch leftover files and the like
1916 # Directories & files removed with 'make clean'
1917 CLEAN_DIRS += $(MODVERDIR) \
1918 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1919 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1921 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \
1922 boot* u-boot* MLO* SPL System.map fit-dtb.blob*
1924 # Directories & files removed with 'make mrproper'
1925 MRPROPER_DIRS += include/config include/generated spl tpl \
1927 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1928 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1929 drivers/video/fonts/*.S
1931 # clean - Delete most, but leave enough to build external modules
1933 clean: rm-dirs := $(CLEAN_DIRS)
1934 clean: rm-files := $(CLEAN_FILES)
1936 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1938 clean-dirs := $(addprefix _clean_, $(clean-dirs))
1940 PHONY += $(clean-dirs) clean archclean
1942 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1944 clean: $(clean-dirs)
1947 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1948 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1949 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
1950 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1951 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1952 -o -name '*.symtypes' -o -name 'modules.order' \
1953 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1954 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1955 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1956 -type f -print | xargs rm -f \
1957 bl31.c bl31.elf bl31_*.bin image.map tispl.bin*
1959 # mrproper - Delete all generated files, including .config
1961 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1962 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1963 mrproper-dirs := $(addprefix _mrproper_,scripts)
1965 PHONY += $(mrproper-dirs) mrproper archmrproper
1967 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1969 mrproper: clean $(mrproper-dirs)
1972 @rm -f arch/*/include/asm/arch
1979 @find $(srctree) $(RCS_FIND_IGNORE) \
1980 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1981 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1982 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1983 -o -name '*.pyc' \) \
1984 -type f -print | xargs rm -f
1985 @rm -f boards.cfg CHANGELOG
1988 F=`basename $(srctree)` ; cd .. ; \
1989 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1992 @echo 'Cleaning targets:'
1993 @echo ' clean - Remove most generated files but keep the config'
1994 @echo ' mrproper - Remove all generated files + config + various backup files'
1995 @echo ' distclean - mrproper + remove editor backup and patch files'
1997 @echo 'Configuration targets:'
1998 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2000 @echo 'Test targets:'
2002 @echo ' check - Run all automated tests that use sandbox'
2003 @echo ' qcheck - Run quick automated tests that use sandbox'
2005 @echo 'Other generic targets:'
2006 @echo ' all - Build all necessary images depending on configuration'
2007 @echo ' tests - Build U-Boot for sandbox and run tests'
2008 @echo '* u-boot - Build the bare u-boot'
2009 @echo ' dir/ - Build all files in dir and below'
2010 @echo ' dir/file.[oisS] - Build specified target only'
2011 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
2012 @echo ' (requires a recent binutils and recent build (System.map))'
2013 @echo ' tags/ctags - Generate ctags file for editors'
2014 @echo ' etags - Generate etags file for editors'
2015 @echo ' cscope - Generate cscope index'
2016 @echo ' ubootrelease - Output the release version string (use with make -s)'
2017 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
2018 @echo " cfg - Don't build, just create the .cfg files"
2019 @echo " envtools - Build only the target-side environment tools"
2021 @echo 'Static analysers'
2022 @echo ' checkstack - Generate a list of stack hogs'
2023 @echo ' coccicheck - Execute static code analysis with Coccinelle'
2025 @echo 'Documentation targets:'
2026 @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2028 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2029 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
2030 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
2031 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
2032 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
2033 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2034 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
2035 @echo ' 1: warnings which may be relevant and do not occur too often'
2036 @echo ' 2: warnings which occur quite often but may still be relevant'
2037 @echo ' 3: more obscure warnings, can most likely be ignored'
2038 @echo ' Multiple levels can be combined with W=12 or W=123'
2040 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
2041 @echo 'For further info see the ./README file'
2047 $(srctree)/test/run quick
2049 # Documentation targets
2050 # ---------------------------------------------------------------------------
2051 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2052 linkcheckdocs dochelp refcheckdocs
2053 PHONY += $(DOC_TARGETS)
2054 $(DOC_TARGETS): scripts_basic FORCE
2055 $(Q)$(MAKE) $(build)=doc $@
2057 endif #ifeq ($(config-targets),1)
2058 endif #ifeq ($(mixed-targets),1)
2060 PHONY += checkstack ubootrelease ubootversion
2063 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2064 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2067 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
2070 @echo $(UBOOTVERSION)
2073 # ---------------------------------------------------------------------------
2074 # Single targets are compatible with:
2075 # - build with mixed source and output
2076 # - build with separate output dir 'make O=...'
2077 # - external modules
2079 # target-dir => where to store outputfile
2080 # build-dir => directory in kernel source tree to use
2082 ifeq ($(KBUILD_EXTMOD),)
2083 build-dir = $(patsubst %/,%,$(dir $@))
2084 target-dir = $(dir $@)
2086 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2087 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2088 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2091 %.s: %.c prepare scripts FORCE
2092 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2093 %.i: %.c prepare scripts FORCE
2094 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2095 %.o: %.c prepare scripts FORCE
2096 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2097 %.lst: %.c prepare scripts FORCE
2098 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2099 %.s: %.S prepare scripts FORCE
2100 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2101 %.o: %.S prepare scripts FORCE
2102 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2103 %.symtypes: %.c prepare scripts FORCE
2104 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2107 /: prepare scripts FORCE
2109 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2110 $(build)=$(build-dir)
2111 %/: prepare scripts FORCE
2113 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2114 $(build)=$(build-dir)
2115 %.ko: prepare scripts FORCE
2117 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2118 $(build)=$(build-dir) $(@:.ko=.o)
2119 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2121 quiet_cmd_genenv = GENENV $@
2122 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2123 sed --in-place -e 's/\x00/\x0A/g' $@
2125 u-boot-initial-env: u-boot.bin
2126 $(call if_changed,genenv)
2128 # Consistency checks
2129 # ---------------------------------------------------------------------------
2134 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2136 # FIXME Should go into a make.lib or something
2137 # ===========================================================================
2139 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
2140 cmd_rmdirs = rm -rf $(rm-dirs)
2142 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
2143 cmd_rmfiles = rm -f $(rm-files)
2145 # read all saved command lines
2147 targets := $(wildcard $(sort $(targets)))
2148 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
2150 ifneq ($(cmd_files),)
2151 $(cmd_files): ; # Do not try to update included dependency files
2152 include $(cmd_files)
2155 endif # skip-makefile
2160 # Declare the contents of the .PHONY variable as phony. We keep that
2161 # information in a variable so we can use it in if_changed and friends.