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 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
677 ifeq ($(cc-name),clang)
678 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
679 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
680 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
681 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
684 # turn jbsr into jsr for m68k
686 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
687 KBUILD_AFLAGS += -Wa,-gstabs,-S
691 # Prohibit date/time macros, which would make the build non-deterministic
692 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
694 include scripts/Makefile.extrawarn
696 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
697 KBUILD_CPPFLAGS += $(KCPPFLAGS)
698 KBUILD_AFLAGS += $(KAFLAGS)
699 KBUILD_CFLAGS += $(KCFLAGS)
701 # Use UBOOTINCLUDE when you must reference the include/ directory.
702 # Needed to be compatible with the O= option
705 $(if $(KBUILD_SRC), -I$(srctree)/include) \
706 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
707 $(if $(CONFIG_HAS_THUMB2),, \
708 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
709 -I$(srctree)/arch/$(ARCH)/include \
710 -include $(srctree)/include/linux/kconfig.h
712 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
713 CHECKFLAGS += $(NOSTDINC_FLAGS)
716 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
718 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
720 #########################################################################
721 # U-Boot objects....order is important (i.e. start must be first)
723 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
726 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
727 libs-$(CONFIG_OF_EMBED) += dts/
732 libs-y += drivers/dma/
733 libs-y += drivers/gpio/
734 libs-y += drivers/i2c/
735 libs-y += drivers/net/
736 libs-y += drivers/net/phy/
737 libs-y += drivers/power/ \
738 drivers/power/domain/ \
739 drivers/power/fuel_gauge/ \
741 drivers/power/pmic/ \
742 drivers/power/battery/ \
743 drivers/power/regulator/
744 libs-y += drivers/spi/
745 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
746 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
747 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
748 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
749 libs-y += drivers/serial/
750 libs-y += drivers/usb/cdns3/
751 libs-y += drivers/usb/dwc3/
752 libs-y += drivers/usb/common/
753 libs-y += drivers/usb/emul/
754 libs-y += drivers/usb/eth/
755 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
756 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
757 libs-y += drivers/usb/host/
758 libs-y += drivers/usb/musb/
759 libs-y += drivers/usb/musb-new/
760 libs-y += drivers/usb/phy/
761 libs-y += drivers/usb/ulpi/
765 libs-$(CONFIG_API) += api/
766 libs-$(CONFIG_HAS_POST) += post/
767 libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
768 libs-$(CONFIG_UT_ENV) += test/env/
769 libs-$(CONFIG_UT_OPTEE) += test/optee/
770 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
772 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
774 libs-y := $(sort $(libs-y))
776 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
778 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
780 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
782 u-boot-init := $(head-y)
783 u-boot-main := $(libs-y)
787 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
788 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
790 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
792 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
794 ifdef CONFIG_CC_COVERAGE
795 KBUILD_CFLAGS += --coverage
796 PLATFORM_LIBGCC += -lgcov
800 export PLATFORM_LIBGCC
802 # Special flags for CPP when processing the linker script.
803 # Pass the version down so we can handle backwards compatibility
806 -include $(srctree)/include/u-boot/u-boot.lds.h \
808 $(shell $(LD) --version | \
809 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
811 #########################################################################
812 #########################################################################
814 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
815 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
820 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0)
821 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
826 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0)
827 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
832 # Statically apply RELA-style relocations (currently arm64 only)
833 # This is useful for arm64 where static relocation needs to be performed on
834 # the raw binary, but certain simulators only accept an ELF file (but don't
835 # do the relocation).
836 ifneq ($(CONFIG_STATIC_RELA),)
837 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
839 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
840 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
841 tools/relocate-rela $(2) $(3) $$start $$end
846 # Always append ALL so that arch config.mk's can add custom ones
847 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
849 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
850 ifeq ($(CONFIG_SPL_FSL_PBL),y)
851 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
853 ifneq ($(CONFIG_SECURE_BOOT), y)
854 # For Secure Boot The Image needs to be signed and Header must also
855 # be included. So The image has to be built explicitly
856 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
859 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
860 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
861 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
863 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
864 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
866 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
869 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
870 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
871 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
872 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
874 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
875 ifneq ($(CONFIG_SPL_TARGET),)
876 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
878 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
879 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
880 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
882 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
883 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
886 # Build a combined spl + u-boot image for sunxi
887 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
888 ALL-y += u-boot-sunxi-with-spl.bin
891 # enable combined SPL/u-boot/dtb rules for tegra
892 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
893 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
894 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
897 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
899 # Add optional build target if defined in board/cpu/soc headers
900 ifneq ($(CONFIG_BUILD_TARGET),)
901 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
904 ifdef CONFIG_INIT_SP_RELATIVE
905 ALL-y += init_sp_bss_offset_check
908 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
909 ALL-y += u-boot-with-dtb.bin
912 ifeq ($(CONFIG_ARCH_ROCKCHIP)$(CONFIG_SPL)$(CONFIG_TPL),yyy)
913 ALL-y += idbloader.img
916 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
918 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
919 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
921 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
922 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
925 # Normally we fill empty space with 0xff
926 quiet_cmd_objcopy = OBJCOPY $@
927 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
928 $(OBJCOPYFLAGS_$(@F)) $< $@
930 # Provide a version which does not do this, for use by EFI
931 quiet_cmd_zobjcopy = OBJCOPY $@
932 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
934 quiet_cmd_efipayload = OBJCOPY $@
935 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
937 MKIMAGEOUTPUT ?= /dev/null
939 quiet_cmd_mkimage = MKIMAGE $@
940 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
941 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
943 quiet_cmd_mkfitimage = MKIMAGE $@
944 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\
945 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
947 quiet_cmd_cat = CAT $@
948 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
950 append = cat $(filter-out $< $(PHONY), $^) >> $@
952 quiet_cmd_pad_cat = CAT $@
953 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
957 quiet_cmd_cfgcheck = CFGCHK $2
958 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
959 $(srctree)/scripts/config_whitelist.txt $(srctree)
962 ifeq ($(CONFIG_DEPRECATED),y)
963 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
964 ifeq ($(CONFIG_SPI),y)
965 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
966 $(warning "The relevant config item with associated code will remove in v2019.07 release.")
970 ifneq ($(CONFIG_DM),y)
971 @echo >&2 "===================== WARNING ======================"
972 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
973 @echo >&2 "compulsory starting with the v2020.01 release."
974 @echo >&2 "Failure to update may result in board removal."
975 @echo >&2 "See doc/driver-model/migration.rst for more info."
976 @echo >&2 "===================================================="
978 ifeq ($(CONFIG_MMC),y)
979 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
980 @echo >&2 "===================== WARNING ======================"
981 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
982 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
983 @echo >&2 "Failure to update by the deadline may result in board removal."
984 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
985 @echo >&2 "===================================================="
988 ifeq ($(CONFIG_USB),y)
989 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
990 @echo >&2 "===================== WARNING ======================"
991 @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
992 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
993 @echo >&2 "Failure to update by the deadline may result in board removal."
994 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
995 @echo >&2 "===================================================="
998 ifeq ($(CONFIG_MVSATA_IDE),y)
999 @echo >&2 "===================== WARNING ======================"
1000 @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
1001 @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
1002 @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
1003 @echo >&2 "release."
1004 @echo >&2 "Failure to update by the deadline may result in board removal."
1005 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1006 @echo >&2 "===================================================="
1008 ifeq ($(CONFIG_LIBATA),y)
1009 ifneq ($(CONFIG_AHCI),y)
1010 @echo >&2 "===================== WARNING ======================"
1011 @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
1012 @echo >&2 "enabled. Please update the storage controller driver to use"
1013 @echo >&2 "CONFIG_AHCI before the v2019.07 release."
1014 @echo >&2 "Failure to update by the deadline may result in board removal."
1015 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1016 @echo >&2 "===================================================="
1019 ifeq ($(CONFIG_PCI),y)
1020 ifneq ($(CONFIG_DM_PCI),y)
1021 @echo >&2 "===================== WARNING ======================"
1022 @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
1023 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
1024 @echo >&2 "Failure to update by the deadline may result in board removal."
1025 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1026 @echo >&2 "===================================================="
1029 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
1030 ifneq ($(CONFIG_DM_VIDEO),y)
1031 @echo >&2 "===================== WARNING ======================"
1032 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
1033 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
1034 @echo >&2 "Failure to update by the deadline may result in board removal."
1035 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1036 @echo >&2 "===================================================="
1039 ifeq ($(CONFIG_OF_EMBED),y)
1040 @echo >&2 "===================== WARNING ======================"
1041 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1042 @echo >&2 "be used for debugging purposes. Please use"
1043 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1044 @echo >&2 "See doc/README.fdt-control for more info."
1045 @echo >&2 "===================================================="
1047 ifeq ($(CONFIG_SPI_FLASH),y)
1048 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1049 @echo >&2 "===================== WARNING ======================"
1050 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1051 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1052 @echo >&2 "Failure to update by the deadline may result in board removal."
1053 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1054 @echo >&2 "===================================================="
1057 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1058 ifneq ($(CONFIG_WDT),y)
1059 @echo >&2 "===================== WARNING ======================"
1060 @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1061 @echo >&2 "Please update the board to use CONFIG_WDT before the"
1062 @echo >&2 "v2019.10 release."
1063 @echo >&2 "Failure to update by the deadline may result in board removal."
1064 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1065 @echo >&2 "===================================================="
1068 ifneq ($(CONFIG_NET),)
1069 ifneq ($(CONFIG_DM_ETH),y)
1070 @echo >&2 "===================== WARNING ======================"
1071 @echo >&2 "This board does not use CONFIG_DM_ETH (Driver Model"
1072 @echo >&2 "for Ethernet drivers). Please update the board to use"
1073 @echo >&2 "CONFIG_DM_ETH before the v2020.07 release. Failure to"
1074 @echo >&2 "update by the deadline may result in board removal."
1075 @echo >&2 "See doc/driver-model/migration.rst for more info."
1076 @echo >&2 "===================================================="
1079 @# Check that this build does not use CONFIG options that we do not
1080 @# know about unless they are in Kconfig. All the existing CONFIG
1081 @# options are whitelisted, so new ones should not be added.
1082 $(call cmd,cfgcheck,u-boot.cfg)
1088 $(Q)$(MAKE) $(build)=dts dtbs
1090 quiet_cmd_copy = COPY $@
1093 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1095 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1096 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1097 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1098 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1100 FINAL_DTB_CONTAINER = fit-dtb.blob
1103 fit-dtb.blob.gz: fit-dtb.blob
1106 fit-dtb.blob.lzo: fit-dtb.blob
1109 fit-dtb.blob: dts/dt.dtb FORCE
1110 $(call if_changed,mkimage)
1111 ifneq ($(SOURCE_DATE_EPOCH),)
1112 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1113 chmod 0600 fit-dtb.blob
1116 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1118 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1121 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1122 $(call if_changed,cat)
1124 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1125 $(call if_changed,cat)
1128 u-boot.bin: u-boot-fit-dtb.bin FORCE
1129 $(call if_changed,copy)
1131 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1132 $(call if_changed,cat)
1134 else ifeq ($(CONFIG_OF_SEPARATE),y)
1135 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1136 $(call if_changed,cat)
1138 u-boot.bin: u-boot-dtb.bin FORCE
1139 $(call if_changed,copy)
1141 u-boot.bin: u-boot-nodtb.bin FORCE
1142 $(call if_changed,copy)
1145 # we call Makefile in arch/arm/mach-imx which
1146 # has targets which are dependent on targets defined
1147 # here. make could not resolve them and we must ensure
1148 # that they are finished before calling imx targets
1149 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1150 IMX_DEPS = u-boot-fit-dtb.bin
1153 %.imx: $(IMX_DEPS) %.bin
1154 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1158 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1160 quiet_cmd_copy = COPY $@
1163 u-boot.dtb: dts/dt.dtb
1166 OBJCOPYFLAGS_u-boot.hex := -O ihex
1168 OBJCOPYFLAGS_u-boot.srec := -O srec
1170 u-boot.hex u-boot.srec: u-boot FORCE
1171 $(call if_changed,objcopy)
1173 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1175 u-boot-elf.srec: u-boot.elf FORCE
1176 $(call if_changed,objcopy)
1178 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1180 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1181 $(call if_changed,objcopy)
1184 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1186 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1187 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1188 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1190 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1192 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1193 $(call if_changed,objcopy)
1195 binary_size_check: u-boot-nodtb.bin FORCE
1196 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1197 map_size=$(shell cat u-boot.map | \
1198 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1201 if [ "" != "$$map_size" ]; then \
1202 if test $$map_size -ne $$file_size; then \
1203 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1204 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1209 ifdef CONFIG_INIT_SP_RELATIVE
1210 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1211 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1213 subtract_sys_malloc_f_len = true
1215 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1216 # so low that the DTB could probably use 90%+ of the available space, for
1217 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1218 # safe for now and tweak this later if space becomes tight.
1219 # A rejected alternative would be to check that some absolute minimum stack
1220 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1221 # deliberately build-specific, to take account of build-to-build stack usage
1222 # differences due to different feature sets, there is no common absolute value
1224 init_sp_bss_offset_check: u-boot.dtb FORCE
1225 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1226 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1227 $(subtract_sys_malloc_f_len) ; \
1228 quarter_space=$$(($${space} / 4)) ; \
1229 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1230 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1231 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1236 u-boot-nodtb.bin: u-boot FORCE
1237 $(call if_changed,objcopy)
1238 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1243 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1247 # ---------------------------------------------------------------------------
1248 # Use 'make BINMAN_DEBUG=1' to enable debugging
1249 quiet_cmd_binman = BINMAN $@
1250 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1251 --toolpath $(objtree)/tools \
1252 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1253 build -u -d u-boot.dtb -O . -m \
1254 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1257 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1259 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1261 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1262 $(call if_changed,objcopy)
1265 # U-Boot entry point, needed for booting of full-blown U-Boot
1266 # from the SPL U-Boot version.
1268 ifndef CONFIG_SYS_UBOOT_START
1269 CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE)
1272 # Boards with more complex image requirements can provide an .its source file
1273 # or a generator script
1274 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1275 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1277 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1278 U_BOOT_ITS := u-boot.its
1279 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1280 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1282 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1283 U_BOOT_ITS_DEPS += u-boot
1285 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1286 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1287 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1291 ifdef CONFIG_SPL_LOAD_FIT
1292 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1293 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1294 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1295 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1296 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1297 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1299 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1300 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1301 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1302 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -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 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1308 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1310 # Some boards have the kwbimage.cfg file written in advance, while some
1311 # other boards generate it on the fly during the build in the build tree.
1312 # Let's check if the file exists in the build tree first, otherwise we
1313 # fall back to use the one in the source tree.
1314 KWD_CONFIG_FILE = $(shell \
1315 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1316 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1318 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1321 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1322 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1324 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \
1325 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1326 $(if $(KEYDIR),-k $(KEYDIR))
1328 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1329 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1331 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1332 UBOOT_BIN := u-boot-with-dtb.bin
1334 UBOOT_BIN := u-boot.bin
1337 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1338 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
1339 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1340 ,$(UBOOT_BIN)) FORCE
1341 $(call if_changed,mkimage)
1344 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1345 MKIMAGEFLAGS_u-boot.itb =
1347 MKIMAGEFLAGS_u-boot.itb = -E
1350 u-boot.itb: u-boot-nodtb.bin \
1351 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1353 $(call if_changed,mkfitimage)
1356 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1357 $(call if_changed,mkimage)
1359 u-boot.sha1: u-boot.bin
1360 tools/ubsha1 u-boot.bin
1363 $(OBJDUMP) -d $< > $@
1365 ifneq ($(CONFIG_SPL_PAYLOAD),)
1366 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1368 SPL_PAYLOAD := u-boot.bin
1371 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1373 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1374 --pad-to=$(CONFIG_SPL_PAD_TO)
1375 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1376 $(call if_changed,pad_cat)
1378 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
1379 MKIMAGEFLAGS_u-boot-tpl.img = -n $(CONFIG_SYS_SOC) -T rksd
1380 tpl/u-boot-tpl.img: tpl/u-boot-tpl.bin FORCE
1381 $(call if_changed,mkimage)
1382 idbloader.img: tpl/u-boot-tpl.img spl/u-boot-spl.bin FORCE
1383 $(call if_changed,cat)
1386 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1387 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1389 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1390 $(call if_changed,mkimage)
1392 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1394 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1395 $(call if_changed,objcopy)
1397 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1399 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1400 $(call if_changed,objcopy)
1402 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1403 $(call if_changed,cat)
1407 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1408 --pad-to=$(CONFIG_TPL_PAD_TO)
1409 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1410 $(call if_changed,pad_cat)
1412 SPL: spl/u-boot-spl.bin FORCE
1413 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1415 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1416 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1417 u-boot.cnt: u-boot.bin FORCE
1418 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1420 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1421 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1423 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1424 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1428 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1429 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1431 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1433 u-boot.ubl: u-boot-with-spl.bin FORCE
1434 $(call if_changed,mkimage)
1436 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1437 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1438 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1439 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1440 $(call if_changed,mkimage)
1442 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1443 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1444 $(call if_changed,pad_cat)
1446 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1447 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1448 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1449 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1451 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1452 # Both images are created using mkimage (crc etc), so that the ROM
1453 # bootloader can check its integrity. Padding needs to be done to the
1454 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1455 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1456 # The resulting image containing both U-Boot images is called u-boot.spr
1457 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1458 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1459 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1460 $(call if_changed,mkimage)
1462 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1464 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1465 $(call if_changed,pad_cat)
1467 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1468 quiet_cmd_socboot = SOCBOOT $@
1469 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1470 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1471 u-boot.img > $@ || rm -f $@
1472 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1473 $(call if_changed,socboot)
1475 quiet_cmd_socnandboot = SOCNANDBOOT $@
1476 cmd_socnandboot = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1477 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1478 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1479 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1480 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1481 u-boot.img > $@ || rm -f $@ spl/u-boot-spl.pad
1482 u-boot-with-nand-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1483 $(call if_changed,socnandboot)
1487 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1488 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1489 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1490 $(call if_changed,binman)
1492 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1493 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1494 u-boot-br.bin: u-boot FORCE
1495 $(call if_changed,objcopy)
1499 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1500 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1501 # the middle. This is handled by binman based on an image description in the
1502 # board's device tree.
1503 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1504 rom: u-boot.rom FORCE
1506 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1507 $(call if_changed,copy)
1509 quiet_cmd_ldr = LD $@
1510 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1511 $(filter-out FORCE,$^) -o $@
1513 u-boot.rom: u-boot-x86-start16.bin u-boot-x86-reset16.bin u-boot.bin \
1514 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1515 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
1516 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1517 $(call if_changed,binman)
1519 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1520 u-boot-x86-start16.bin: u-boot FORCE
1521 $(call if_changed,objcopy)
1523 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1524 u-boot-x86-reset16.bin: u-boot FORCE
1525 $(call if_changed,objcopy)
1528 ifneq ($(CONFIG_ARCH_SUNXI),)
1529 ifeq ($(CONFIG_ARM64),)
1530 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1531 $(call if_changed,binman)
1533 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1534 $(call if_changed,cat)
1538 ifneq ($(CONFIG_TEGRA),)
1539 ifneq ($(CONFIG_BINMAN),)
1540 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1541 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1542 spl/%-spl %.bin FORCE
1543 $(call if_changed,binman)
1545 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1546 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1547 $(call if_changed,pad_cat)
1549 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1550 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1551 $(call if_changed,pad_cat)
1553 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1554 $(call if_changed,copy)
1558 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1559 u-boot-app.efi: u-boot FORCE
1560 $(call if_changed,zobjcopy)
1562 u-boot.bin.o: u-boot.bin FORCE
1563 $(call if_changed,efipayload)
1565 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1566 $(call if_changed_dep,cpp_lds)
1568 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1569 quiet_cmd_u-boot_payload ?= LD $@
1570 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1571 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1572 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1573 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1575 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1576 $(call if_changed,u-boot_payload)
1578 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1579 u-boot-payload.efi: u-boot-payload FORCE
1580 $(call if_changed,zobjcopy)
1582 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1583 $(call if_changed,cat)
1585 #Add a target to create boot binary having SPL binary in PBI format
1586 #concatenated with u-boot binary. It is need by PowerPC SoC having
1587 #internal SRAM <= 512KB.
1588 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1589 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1590 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1592 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1593 $(call if_changed,mkimage)
1596 UBOOT_BINLOAD := u-boot.img
1598 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1599 UBOOT_BINLOAD := u-boot-with-dtb.bin
1601 UBOOT_BINLOAD := u-boot.bin
1605 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1608 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1609 $(call if_changed,pad_cat)
1611 # PPC4xx needs the SPL at the end of the image, since the reset vector
1612 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1613 # and need to introduce a new build target with the full blown U-Boot
1614 # at the start padded up to the start of the SPL image. And then concat
1615 # the SPL image to the end.
1617 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1618 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1619 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1620 $(call if_changed,pad_cat)
1622 # Create a new ELF from a raw binary file.
1623 ifndef PLATFORM_ELFENTRY
1624 PLATFORM_ELFENTRY = "_start"
1626 quiet_cmd_u-boot-elf ?= LD $@
1627 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1628 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1629 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1630 u-boot.elf: u-boot.bin
1631 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1632 $(call if_changed,u-boot-elf)
1634 # MediaTek's ARM-based u-boot needs a header to contains its load address
1635 # which is parsed by the BootROM.
1636 # If the SPL build is enabled, the header will be added to the spl binary,
1637 # and the spl binary and the u-boot.img will be combined into one file.
1638 # Otherwise the header will be added to the u-boot.bin directly.
1640 ifeq ($(CONFIG_SPL),y)
1641 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1643 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1644 $(call if_changed,binman)
1646 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1647 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1648 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1650 u-boot-mtk.bin: u-boot.bin FORCE
1651 $(call if_changed,mkimage)
1654 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1656 # Rule to link u-boot
1657 # May be overridden by arch/$(ARCH)/config.mk
1658 quiet_cmd_u-boot__ ?= LD $@
1659 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1660 -T u-boot.lds $(u-boot-init) \
1661 --start-group $(u-boot-main) --end-group \
1662 $(PLATFORM_LIBS) -Map u-boot.map; \
1663 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1665 quiet_cmd_smap = GEN common/system_map.o
1667 smap=`$(call SYSTEM_MAP,u-boot) | \
1668 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1669 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1670 -c $(srctree)/common/system_map.c -o common/system_map.o
1672 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1673 +$(call if_changed,u-boot__)
1674 ifeq ($(CONFIG_KALLSYMS),y)
1676 $(call cmd,u-boot__) common/system_map.o
1679 ifeq ($(CONFIG_RISCV),y)
1680 @tools/prelink-riscv $@ 0
1683 quiet_cmd_sym ?= SYM $@
1684 cmd_sym ?= $(OBJDUMP) -t $< > $@
1685 u-boot.sym: u-boot FORCE
1686 $(call if_changed,sym)
1688 # The actual objects are generated when descending,
1689 # make sure no implicit rule kicks in
1690 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1692 # Handle descending into subdirectories listed in $(u-boot-dirs)
1693 # Preset locale variables to speed up the build process. Limit locale
1694 # tweaks to this spot to avoid wrong language settings when running
1695 # make menuconfig etc.
1696 # Error messages still appears in the original language
1698 PHONY += $(u-boot-dirs)
1699 $(u-boot-dirs): prepare scripts
1700 $(Q)$(MAKE) $(build)=$@
1703 # The "tools" are needed early
1704 $(filter-out tools, $(u-boot-dirs)): tools
1705 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1706 # is "yes"), so compile examples after U-Boot is compiled.
1707 examples: $(filter-out examples, $(u-boot-dirs))
1709 define filechk_uboot.release
1710 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1713 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1714 include/config/uboot.release: include/config/auto.conf FORCE
1715 $(call filechk,uboot.release)
1718 # Things we need to do before we recursively start building the kernel
1719 # or the modules are listed in "prepare".
1720 # A multi level approach is used. prepareN is processed before prepareN-1.
1721 # archprepare is used in arch Makefiles and when processed asm symlink,
1722 # version.h and scripts_basic is processed / created.
1724 # Listed in dependency order
1725 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1727 # prepare3 is used to check if we are building in a separate output directory,
1729 # 1) Check that make has not been executed in the kernel src $(srctree)
1730 prepare3: include/config/uboot.release
1731 ifneq ($(KBUILD_SRC),)
1732 @$(kecho) ' Using $(srctree) as source for U-Boot'
1733 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1734 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1735 echo >&2 " in the '$(srctree)' directory.";\
1740 # prepare2 creates a makefile if using a separate output directory
1741 prepare2: prepare3 outputmakefile cfg
1743 prepare1: prepare2 $(version_h) $(timestamp_h) \
1744 include/config/auto.conf
1745 ifeq ($(wildcard $(LDSCRIPT)),)
1746 @echo >&2 " Could not find linker script."
1750 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1751 prepare1: $(defaultenv_h)
1754 archprepare: prepare1 scripts_basic
1756 prepare0: archprepare FORCE
1757 $(Q)$(MAKE) $(build)=.
1759 # All the preparing..
1762 # Generate some files
1763 # ---------------------------------------------------------------------------
1765 define filechk_version.h
1766 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1767 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1768 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1769 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1772 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1773 # The BSD date on the other hand behaves different and would produce errors
1774 # with the misused '-d' switch. Respect that and search a working date with
1775 # well known pre- and suffixes for the GNU variant of date.
1776 define filechk_timestamp.h
1777 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1778 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1780 for date in gdate date.gnu date; do \
1781 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1783 if test -n "$${DATE}"; then \
1784 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1785 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1786 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1787 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1788 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1793 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1794 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1795 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1796 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1797 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1801 define filechk_defaultenv.h
1805 sed -e 's/\\\x0/\n/g' | \
1806 xxd -i ; echo ", 0x00" ; )
1809 $(version_h): include/config/uboot.release FORCE
1810 $(call filechk,version.h)
1812 $(timestamp_h): $(srctree)/Makefile FORCE
1813 $(call filechk,timestamp.h)
1815 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1816 $(call filechk,defaultenv.h)
1818 # ---------------------------------------------------------------------------
1819 quiet_cmd_cpp_lds = LDS $@
1820 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1821 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1823 u-boot.lds: $(LDSCRIPT) prepare FORCE
1824 $(call if_changed_dep,cpp_lds)
1826 spl/u-boot-spl.bin: spl/u-boot-spl
1830 spl/u-boot-spl: tools prepare \
1831 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1832 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1833 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1835 spl/sunxi-spl.bin: spl/u-boot-spl
1838 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1841 spl/u-boot-spl.sfp: spl/u-boot-spl
1844 spl/boot.bin: spl/u-boot-spl
1847 tpl/u-boot-tpl.bin: tools prepare \
1848 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1849 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1852 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1858 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1859 -name '*.[chS]' -print`
1863 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1864 -name '*.[chS]' -print`
1866 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1868 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
1869 grep -xvf - cscope.files > cscope.files.no-symlinks; \
1870 mv cscope.files.no-symlinks cscope.files
1875 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1878 @$(call SYSTEM_MAP,$<) > $@
1880 #########################################################################
1882 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1883 # R_AARCH64_RELATIVE (64-bit).
1884 checkarmreloc: u-boot
1885 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1886 grep R_A | sort -u`"; \
1887 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1888 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1889 echo "$< contains unexpected relocations: $$RELOC"; \
1893 tools/version.h: include/version.h
1894 $(Q)mkdir -p $(dir $@)
1895 $(call if_changed,copy)
1897 envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h
1898 $(Q)$(MAKE) $(build)=tools/env
1900 tools-only: export TOOLS_ONLY=y
1901 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
1902 $(Q)$(MAKE) $(build)=tools
1904 tools-all: export HOST_TOOLS_ALL=y
1905 tools-all: envtools tools ;
1907 cross_tools: export CROSS_BUILD_TOOLS=y
1908 cross_tools: tools ;
1912 git log --no-merges U-Boot-1_1_5.. | \
1913 unexpand -a | sed -e 's/\s\s*$$//' > $@
1915 #########################################################################
1918 # Cleaning is done on three levels.
1919 # make clean Delete most generated files
1920 # Leave enough to build external modules
1921 # make mrproper Delete the current configuration, and all generated files
1922 # make distclean Remove editor backup files, patch leftover files and the like
1924 # Directories & files removed with 'make clean'
1925 CLEAN_DIRS += $(MODVERDIR) \
1926 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1927 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1929 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \
1930 boot* u-boot* MLO* SPL System.map fit-dtb.blob* \
1931 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
1932 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
1935 # Directories & files removed with 'make mrproper'
1936 MRPROPER_DIRS += include/config include/generated spl tpl \
1938 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1939 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1940 drivers/video/fonts/*.S
1942 # clean - Delete most, but leave enough to build external modules
1944 clean: rm-dirs := $(CLEAN_DIRS)
1945 clean: rm-files := $(CLEAN_FILES)
1947 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1949 clean-dirs := $(addprefix _clean_, $(clean-dirs))
1951 PHONY += $(clean-dirs) clean archclean
1953 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1955 clean: $(clean-dirs)
1958 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1959 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1960 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
1961 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1962 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1963 -o -name '*.asn1.[ch]' \
1964 -o -name '*.symtypes' -o -name 'modules.order' \
1965 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1966 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1967 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1968 -type f -print | xargs rm -f
1970 # mrproper - Delete all generated files, including .config
1972 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1973 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1974 mrproper-dirs := $(addprefix _mrproper_,scripts)
1976 PHONY += $(mrproper-dirs) mrproper archmrproper
1978 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1980 mrproper: clean $(mrproper-dirs)
1983 @rm -f arch/*/include/asm/arch
1990 @find $(srctree) $(RCS_FIND_IGNORE) \
1991 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1992 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1993 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1994 -o -name '*.pyc' \) \
1995 -type f -print | xargs rm -f
1996 @rm -f boards.cfg CHANGELOG
1999 F=`basename $(srctree)` ; cd .. ; \
2000 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2003 @echo 'Cleaning targets:'
2004 @echo ' clean - Remove most generated files but keep the config'
2005 @echo ' mrproper - Remove all generated files + config + various backup files'
2006 @echo ' distclean - mrproper + remove editor backup and patch files'
2008 @echo 'Configuration targets:'
2009 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2011 @echo 'Test targets:'
2013 @echo ' check - Run all automated tests that use sandbox'
2014 @echo ' qcheck - Run quick automated tests that use sandbox'
2016 @echo 'Other generic targets:'
2017 @echo ' all - Build all necessary images depending on configuration'
2018 @echo ' tests - Build U-Boot for sandbox and run tests'
2019 @echo '* u-boot - Build the bare u-boot'
2020 @echo ' dir/ - Build all files in dir and below'
2021 @echo ' dir/file.[oisS] - Build specified target only'
2022 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
2023 @echo ' (requires a recent binutils and recent build (System.map))'
2024 @echo ' tags/ctags - Generate ctags file for editors'
2025 @echo ' etags - Generate etags file for editors'
2026 @echo ' cscope - Generate cscope index'
2027 @echo ' ubootrelease - Output the release version string (use with make -s)'
2028 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
2029 @echo " cfg - Don't build, just create the .cfg files"
2030 @echo " envtools - Build only the target-side environment tools"
2032 @echo 'Static analysers'
2033 @echo ' checkstack - Generate a list of stack hogs'
2034 @echo ' coccicheck - Execute static code analysis with Coccinelle'
2036 @echo 'Documentation targets:'
2037 @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2039 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2040 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
2041 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
2042 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
2043 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
2044 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2045 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
2046 @echo ' 1: warnings which may be relevant and do not occur too often'
2047 @echo ' 2: warnings which occur quite often but may still be relevant'
2048 @echo ' 3: more obscure warnings, can most likely be ignored'
2049 @echo ' Multiple levels can be combined with W=12 or W=123'
2051 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
2052 @echo 'For further info see the ./README file'
2058 $(srctree)/test/run quick
2060 # Documentation targets
2061 # ---------------------------------------------------------------------------
2062 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2063 linkcheckdocs dochelp refcheckdocs
2064 PHONY += $(DOC_TARGETS)
2065 $(DOC_TARGETS): scripts_basic FORCE
2066 $(Q)$(MAKE) $(build)=doc $@
2068 endif #ifeq ($(config-targets),1)
2069 endif #ifeq ($(mixed-targets),1)
2071 PHONY += checkstack ubootrelease ubootversion
2074 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2075 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2078 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
2081 @echo $(UBOOTVERSION)
2084 # ---------------------------------------------------------------------------
2085 # Single targets are compatible with:
2086 # - build with mixed source and output
2087 # - build with separate output dir 'make O=...'
2088 # - external modules
2090 # target-dir => where to store outputfile
2091 # build-dir => directory in kernel source tree to use
2093 ifeq ($(KBUILD_EXTMOD),)
2094 build-dir = $(patsubst %/,%,$(dir $@))
2095 target-dir = $(dir $@)
2097 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2098 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2099 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2102 %.s: %.c prepare scripts FORCE
2103 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2104 %.i: %.c prepare scripts FORCE
2105 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2106 %.o: %.c prepare scripts FORCE
2107 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2108 %.lst: %.c prepare scripts FORCE
2109 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2110 %.s: %.S prepare scripts FORCE
2111 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2112 %.o: %.S prepare scripts FORCE
2113 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2114 %.symtypes: %.c prepare scripts FORCE
2115 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2118 /: prepare scripts FORCE
2120 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2121 $(build)=$(build-dir)
2122 %/: prepare scripts FORCE
2124 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2125 $(build)=$(build-dir)
2126 %.ko: prepare scripts FORCE
2128 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2129 $(build)=$(build-dir) $(@:.ko=.o)
2130 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2132 quiet_cmd_genenv = GENENV $@
2133 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2134 sed --in-place -e 's/\x00/\x0A/g' $@
2136 u-boot-initial-env: u-boot.bin
2137 $(call if_changed,genenv)
2139 # Consistency checks
2140 # ---------------------------------------------------------------------------
2145 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2147 # FIXME Should go into a make.lib or something
2148 # ===========================================================================
2150 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
2151 cmd_rmdirs = rm -rf $(rm-dirs)
2153 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
2154 cmd_rmfiles = rm -f $(rm-files)
2156 # read all saved command lines
2158 targets := $(wildcard $(sort $(targets)))
2159 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
2161 ifneq ($(cmd_files),)
2162 $(cmd_files): ; # Do not try to update included dependency files
2163 include $(cmd_files)
2166 endif # skip-makefile
2171 # Declare the contents of the .PHONY variable as phony. We keep that
2172 # information in a variable so we can use it in if_changed and friends.