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)
274 HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
275 HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
276 HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
280 KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
281 $(if $(CONFIG_TOOLS_DEBUG),-g) $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
282 KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
283 KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
284 KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
286 # With the move to GCC 6, we have implicitly upgraded our language
287 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
288 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
289 # have older compilers as their default, so we make it explicit for
290 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
291 CSTD_FLAG := -std=gnu11
292 ifeq ($(HOSTOS),linux)
293 KBUILD_HOSTCFLAGS += $(CSTD_FLAG)
296 ifeq ($(HOSTOS),cygwin)
297 KBUILD_HOSTCFLAGS += -ansi
300 # Mac OS X / Darwin's C preprocessor is Apple specific. It
301 # generates numerous errors and warnings. We want to bypass it
302 # and use GNU C's cpp. To do this we pass the -traditional-cpp
303 # option to the compiler. Note that the -traditional-cpp flag
304 # DOES NOT have the same semantics as GNU C's flag, all it does
305 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
307 # Apple's linker is similar, thanks to the new 2 stage linking
308 # multiple symbol definitions are treated as errors, hence the
309 # -multiply_defined suppress option to turn off this error.
311 ifeq ($(HOSTOS),darwin)
312 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
313 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
314 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
316 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
317 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
319 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
320 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
322 # Snow Leopards build environment has no longer restrictions as described above
323 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
324 KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
325 KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
327 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
328 # in some host tools which is a problem then ... so disable ASLR for these
330 KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
332 # macOS Mojave (10.14.X)
333 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
334 KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
337 # Decide whether to build built-in, modular, or both.
338 # Normally, just do built-in.
343 # If we have only "make modules", don't compile built-in objects.
344 # When we're building modules with modversions, we need to consider
345 # the built-in objects during the descend as well, in order to
346 # make sure the checksums are up to date before we record them.
348 ifeq ($(MAKECMDGOALS),modules)
349 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
352 # If we have "make <whatever> modules", compile modules
353 # in addition to whatever we do anyway.
354 # Just "make" or "make all" shall build modules as well
356 # U-Boot does not need modules
357 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
358 # KBUILD_MODULES := 1
361 #ifeq ($(MAKECMDGOALS),)
362 # KBUILD_MODULES := 1
365 # Check ths size of a binary:
368 # #2: Size limit in bytes (decimal or 0xhex)
370 actual=$$( wc -c $1 | awk '{print $$1}'); \
371 limit=$$( printf "%d" $2 ); \
372 if test $$actual -gt $$limit; then \
373 echo "$1 exceeds file size limit:" >&2; \
374 echo " limit: $$(printf %#x $$limit) bytes" >&2; \
375 echo " actual: $$(printf %#x $$actual) bytes" >&2; \
376 echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\
382 export KBUILD_MODULES KBUILD_BUILTIN
383 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
385 # We need some generic definitions (do not try to remake the file).
386 scripts/Kbuild.include: ;
387 include scripts/Kbuild.include
389 # Make variables (CC, etc...)
391 AS = $(CROSS_COMPILE)as
393 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
394 LD = $(CROSS_COMPILE)ld.bfd
396 LD = $(CROSS_COMPILE)ld
398 CC = $(CROSS_COMPILE)gcc
400 AR = $(CROSS_COMPILE)ar
401 NM = $(CROSS_COMPILE)nm
402 LDR = $(CROSS_COMPILE)ldr
403 STRIP = $(CROSS_COMPILE)strip
404 OBJCOPY = $(CROSS_COMPILE)objcopy
405 OBJDUMP = $(CROSS_COMPILE)objdump
413 DTC ?= $(objtree)/scripts/dtc/dtc
416 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
417 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
419 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
421 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
422 -Wno-format-security \
423 -fno-builtin -ffreestanding $(CSTD_FLAG)
424 KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
425 KBUILD_AFLAGS := -D__ASSEMBLY__
428 ifeq ($(cc-name),clang)
429 ifneq ($(CROSS_COMPILE),)
430 CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%))
431 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
432 CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR)
433 GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
435 ifneq ($(GCC_TOOLCHAIN),)
436 CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
438 KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
439 KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
440 KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
441 KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
444 # Don't generate position independent code
445 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
446 KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
448 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
449 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
450 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
452 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
453 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
454 export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
455 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
456 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
457 export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
459 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
460 export KBUILD_CFLAGS KBUILD_AFLAGS
462 export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1)
464 # When compiling out-of-tree modules, put MODVERDIR in the module
465 # tree rather than in the kernel tree. The kernel tree might
467 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
469 # Files to ignore in find ... statements
471 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
472 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
474 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
475 --exclude CVS --exclude .pc --exclude .hg --exclude .git
477 # ===========================================================================
478 # Rules shared between *config targets and build targets
480 # Basic helpers built in scripts/
481 PHONY += scripts_basic
483 $(Q)$(MAKE) $(build)=scripts/basic
484 $(Q)rm -f .tmp_quiet_recordmcount
486 # To avoid any implicit rule to kick in, define an empty command.
487 scripts/basic/%: scripts_basic ;
489 PHONY += outputmakefile
490 # outputmakefile generates a Makefile in the output directory, if using a
491 # separate output directory. This allows convenient use of make in the
494 ifneq ($(KBUILD_SRC),)
495 $(Q)ln -fsn $(srctree) source
496 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
497 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
500 # To make sure we do not include .config for any of the *config targets
501 # catch them early, and hand them over to scripts/kconfig/Makefile
502 # It is allowed to specify more targets when calling make, including
503 # mixing *config targets and build targets.
504 # For example 'make oldconfig all'.
505 # Detect when mixed targets is specified, and make a second invocation
506 # of make so .config is not included in this case either (for *config).
508 version_h := include/generated/version_autogenerated.h
509 timestamp_h := include/generated/timestamp_autogenerated.h
510 defaultenv_h := include/generated/defaultenv_autogenerated.h
511 dt_h := include/generated/dt.h
513 no-dot-config-targets := clean clobber mrproper distclean \
514 help %docs check% coccicheck \
515 ubootversion backup tests check qcheck tcheck
521 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
522 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
527 ifeq ($(KBUILD_EXTMOD),)
528 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
530 ifneq ($(words $(MAKECMDGOALS)),1)
536 ifeq ($(mixed-targets),1)
537 # ===========================================================================
538 # We're called with mixed targets (*config and build targets).
539 # Handle them one by one.
541 PHONY += $(MAKECMDGOALS) __build_one_by_one
543 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
548 for i in $(MAKECMDGOALS); do \
549 $(MAKE) -f $(srctree)/Makefile $$i; \
553 ifeq ($(config-targets),1)
554 # ===========================================================================
555 # *config targets only - make sure prerequisites are updated, and descend
556 # in scripts/kconfig to make the *config target
558 KBUILD_DEFCONFIG := sandbox_defconfig
559 export KBUILD_DEFCONFIG KBUILD_KCONFIG
561 config: scripts_basic outputmakefile FORCE
562 $(Q)$(MAKE) $(build)=scripts/kconfig $@
564 %config: scripts_basic outputmakefile FORCE
565 $(Q)$(MAKE) $(build)=scripts/kconfig $@
568 # ===========================================================================
569 # Build targets only - this includes vmlinux, arch specific targets, clean
570 # targets and others. In general all targets except *config targets.
572 # Additional helpers built in scripts/
573 # Carefully list dependencies so we do not try to build scripts twice
576 scripts: scripts_basic include/config/auto.conf
577 $(Q)$(MAKE) $(build)=$(@)
579 ifeq ($(dot-config),1)
581 -include include/config/auto.conf
583 # Read in dependencies to all Kconfig* files, make sure to run
584 # oldconfig if changes are detected.
585 -include include/config/auto.conf.cmd
587 # To avoid any implicit rule to kick in, define an empty command
588 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
590 # If .config is newer than include/config/auto.conf, someone tinkered
591 # with it and forgot to run make oldconfig.
592 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
593 # we execute the config step to be sure to catch updated Kconfig files
594 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
595 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
596 @# If the following part fails, include/config/auto.conf should be
597 @# deleted so "make silentoldconfig" will be re-run on the next build.
598 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
599 { rm -f include/config/auto.conf; false; }
600 @# include/config.h has been updated after "make silentoldconfig".
601 @# We need to touch include/config/auto.conf so it gets newer
602 @# than include/config.h.
603 @# Otherwise, 'make silentoldconfig' would be invoked twice.
604 $(Q)touch include/config/auto.conf
606 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
607 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
609 -include include/autoconf.mk
610 -include include/autoconf.mk.dep
612 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
613 # is up-to-date. When we switch to a different board configuration, old CONFIG
614 # macros are still remaining in include/config/auto.conf. Without the following
615 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
616 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
617 ifneq ($(wildcard include/config/auto.conf),)
618 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
619 include/config/auto.conf)
620 ifeq ($(autoconf_is_old),)
622 include arch/$(ARCH)/Makefile
627 # These are set by the arch-specific config.mk. Make sure they are exported
628 # so they can be used when building an EFI application.
629 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
630 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
631 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
632 export CFLAGS_EFI # Compiler flags to add when building EFI app
633 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
634 export EFI_TARGET # binutils target if EFI is natively supported
636 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
637 # that (or fail if absent). Otherwise, search for a linker script in a
641 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
642 ifdef CONFIG_SYS_LDSCRIPT
643 # need to strip off double quotes
644 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
648 # If there is no specified link script, we look in a number of places for it
650 ifeq ($(wildcard $(LDSCRIPT)),)
651 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
653 ifeq ($(wildcard $(LDSCRIPT)),)
654 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
656 ifeq ($(wildcard $(LDSCRIPT)),)
657 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
662 # Dummy target needed, because used as prerequisite
663 include/config/auto.conf: ;
664 endif # $(dot-config)
667 # Xtensa linker script cannot be preprocessed with -ansi because of
668 # preprocessor operations on strings that don't make C identifiers.
670 ifeq ($(CONFIG_XTENSA),)
674 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
680 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
681 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
683 # disable stringop warnings in gcc 8+
684 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
686 # change __FILE__ to the relative path from the srctree
687 KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
690 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
691 # option to the assembler.
694 # Report stack usage if supported
695 # ARC tools based on GCC 7.1 has an issue with stack usage
696 # with naked functions, see commit message for more details
698 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
699 KBUILD_CFLAGS += -fstack-usage
703 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
704 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
706 ifeq ($(cc-name),clang)
707 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
708 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
709 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
710 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
711 # Quiet clang warning: comparison of unsigned expression < 0 is always false
712 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
713 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
714 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
715 # See modpost pattern 2
716 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
717 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
720 # These warnings generated too much noise in a regular build.
721 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
722 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
725 # turn jbsr into jsr for m68k
727 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
728 KBUILD_AFLAGS += -Wa,-gstabs,-S
732 # Prohibit date/time macros, which would make the build non-deterministic
733 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
735 include scripts/Makefile.extrawarn
737 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
738 KBUILD_CPPFLAGS += $(KCPPFLAGS)
739 KBUILD_AFLAGS += $(KAFLAGS)
740 KBUILD_CFLAGS += $(KCFLAGS)
742 # Use UBOOTINCLUDE when you must reference the include/ directory.
743 # Needed to be compatible with the O= option
746 $(if $(KBUILD_SRC), -I$(srctree)/include) \
747 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
748 $(if $(CONFIG_HAS_THUMB2), \
749 $(if $(CONFIG_CPU_V7M), \
750 -I$(srctree)/arch/arm/thumb1/include), \
751 -I$(srctree)/arch/arm/thumb1/include)) \
752 -I$(srctree)/arch/$(ARCH)/include \
753 -include $(srctree)/include/linux/kconfig.h
755 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
758 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
760 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
762 #########################################################################
763 # U-Boot objects....order is important (i.e. start must be first)
765 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
768 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
769 libs-$(CONFIG_OF_EMBED) += dts/
774 libs-y += drivers/dma/
775 libs-y += drivers/gpio/
776 libs-y += drivers/i2c/
777 libs-y += drivers/net/
778 libs-y += drivers/net/phy/
779 libs-y += drivers/power/ \
780 drivers/power/domain/ \
781 drivers/power/fuel_gauge/ \
783 drivers/power/pmic/ \
784 drivers/power/battery/ \
785 drivers/power/regulator/
786 libs-y += drivers/spi/
787 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
788 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
789 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
790 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
791 libs-y += drivers/serial/
792 libs-y += drivers/usb/cdns3/
793 libs-y += drivers/usb/dwc3/
794 libs-y += drivers/usb/common/
795 libs-y += drivers/usb/emul/
796 libs-y += drivers/usb/eth/
797 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
798 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
799 libs-y += drivers/usb/host/
800 libs-y += drivers/usb/musb/
801 libs-y += drivers/usb/musb-new/
802 libs-y += drivers/usb/phy/
803 libs-y += drivers/usb/ulpi/
807 libs-$(CONFIG_API) += api/
811 libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
812 libs-$(CONFIG_UT_ENV) += test/env/
813 libs-$(CONFIG_UT_OPTEE) += test/optee/
814 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
816 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
818 libs-y := $(sort $(libs-y))
820 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
822 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
824 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
826 u-boot-init := $(head-y)
827 u-boot-main := $(libs-y)
831 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
832 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
834 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
836 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
838 ifdef CONFIG_CC_COVERAGE
839 KBUILD_CFLAGS += --coverage
840 PLATFORM_LIBGCC += -lgcov
844 export PLATFORM_LIBGCC
846 # Special flags for CPP when processing the linker script.
847 # Pass the version down so we can handle backwards compatibility
850 -include $(srctree)/include/u-boot/u-boot.lds.h \
852 $(shell $(LD) --version | \
853 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
855 #########################################################################
856 #########################################################################
858 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
859 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
864 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0)
865 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
870 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0)
871 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
876 # Statically apply RELA-style relocations (currently arm64 only)
877 # This is useful for arm64 where static relocation needs to be performed on
878 # the raw binary, but certain simulators only accept an ELF file (but don't
879 # do the relocation).
880 ifneq ($(CONFIG_STATIC_RELA),)
881 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
883 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
884 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
885 tools/relocate-rela $(2) $(3) $$start $$end
890 # Always append ALL so that arch config.mk's can add custom ones
891 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
893 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
894 ifeq ($(CONFIG_SPL_FSL_PBL),y)
895 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
897 ifneq ($(CONFIG_SECURE_BOOT), y)
898 # For Secure Boot The Image needs to be signed and Header must also
899 # be included. So The image has to be built explicitly
900 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
903 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
904 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
905 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
907 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
908 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
910 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
913 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
914 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
915 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
916 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
918 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
919 ifneq ($(CONFIG_SPL_TARGET),)
920 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
922 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
923 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
924 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
926 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
927 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
930 # Build a combined spl + u-boot image for sunxi
931 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
932 ALL-y += u-boot-sunxi-with-spl.bin
935 # enable combined SPL/u-boot/dtb rules for tegra
936 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
937 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
938 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
941 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
943 # Add optional build target if defined in board/cpu/soc headers
944 ifneq ($(CONFIG_BUILD_TARGET),)
945 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
948 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
949 ALL-y += init_sp_bss_offset_check
952 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
953 ALL-y += u-boot-with-dtb.bin
956 ifeq ($(CONFIG_ARCH_ROCKCHIP)$(CONFIG_SPL),yy)
957 ALL-y += u-boot-rockchip.bin
960 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
962 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
963 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
965 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
966 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
969 # insure the checker run with the right endianness
970 CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
972 # the checker needs the correct machine size
973 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
975 # Normally we fill empty space with 0xff
976 quiet_cmd_objcopy = OBJCOPY $@
977 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
978 $(OBJCOPYFLAGS_$(@F)) $< $@
980 # Provide a version which does not do this, for use by EFI
981 quiet_cmd_zobjcopy = OBJCOPY $@
982 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
984 quiet_cmd_efipayload = OBJCOPY $@
985 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
987 MKIMAGEOUTPUT ?= /dev/null
989 quiet_cmd_mkimage = MKIMAGE $@
990 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
991 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
993 quiet_cmd_mkfitimage = MKIMAGE $@
994 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\
995 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
997 quiet_cmd_cat = CAT $@
998 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
1000 append = cat $(filter-out $< $(PHONY), $^) >> $@
1002 quiet_cmd_pad_cat = CAT $@
1003 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
1005 quiet_cmd_lzma = LZMA $@
1006 cmd_lzma = lzma -c -z -k -9 $< > $@
1010 quiet_cmd_cfgcheck = CFGCHK $2
1011 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
1012 $(srctree)/scripts/config_whitelist.txt $(srctree)
1015 ifeq ($(CONFIG_DEPRECATED),y)
1016 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
1017 ifeq ($(CONFIG_SPI),y)
1018 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
1019 $(warning "The relevant config item with associated code will remove in v2019.07 release.")
1023 ifneq ($(CONFIG_DM),y)
1024 @echo >&2 "===================== WARNING ======================"
1025 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
1026 @echo >&2 "compulsory starting with the v2020.01 release."
1027 @echo >&2 "Failure to update may result in board removal."
1028 @echo >&2 "See doc/driver-model/migration.rst for more info."
1029 @echo >&2 "===================================================="
1031 ifeq ($(CONFIG_MMC),y)
1032 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
1033 @echo >&2 "===================== WARNING ======================"
1034 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
1035 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
1036 @echo >&2 "Failure to update by the deadline may result in board removal."
1037 @echo >&2 "See doc/driver-model/migration.rst for more info."
1038 @echo >&2 "===================================================="
1041 ifeq ($(CONFIG_USB),y)
1042 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
1043 @echo >&2 "===================== WARNING ======================"
1044 @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
1045 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
1046 @echo >&2 "Failure to update by the deadline may result in board removal."
1047 @echo >&2 "See doc/driver-model/migration.rst for more info."
1048 @echo >&2 "===================================================="
1051 ifeq ($(CONFIG_MVSATA_IDE),y)
1052 @echo >&2 "===================== WARNING ======================"
1053 @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
1054 @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
1055 @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
1056 @echo >&2 "release."
1057 @echo >&2 "Failure to update by the deadline may result in board removal."
1058 @echo >&2 "See doc/driver-model/migration.rst for more info."
1059 @echo >&2 "===================================================="
1061 ifeq ($(CONFIG_LIBATA),y)
1062 ifneq ($(CONFIG_AHCI),y)
1063 @echo >&2 "===================== WARNING ======================"
1064 @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
1065 @echo >&2 "enabled. Please update the storage controller driver to use"
1066 @echo >&2 "CONFIG_AHCI before the v2019.07 release."
1067 @echo >&2 "Failure to update by the deadline may result in board removal."
1068 @echo >&2 "See doc/driver-model/migration.rst for more info."
1069 @echo >&2 "===================================================="
1072 ifeq ($(CONFIG_PCI),y)
1073 ifneq ($(CONFIG_DM_PCI),y)
1074 @echo >&2 "===================== WARNING ======================"
1075 @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
1076 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
1077 @echo >&2 "Failure to 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 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
1083 ifneq ($(CONFIG_DM_VIDEO),y)
1084 @echo >&2 "===================== WARNING ======================"
1085 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
1086 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
1087 @echo >&2 "Failure to update by the deadline may result in board removal."
1088 @echo >&2 "See doc/driver-model/migration.rst for more info."
1089 @echo >&2 "===================================================="
1092 ifeq ($(CONFIG_OF_EMBED),y)
1093 @echo >&2 "===================== WARNING ======================"
1094 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1095 @echo >&2 "be used for debugging purposes. Please use"
1096 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1097 @echo >&2 "See doc/README.fdt-control for more info."
1098 @echo >&2 "===================================================="
1100 ifeq ($(CONFIG_SPI_FLASH),y)
1101 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1102 @echo >&2 "===================== WARNING ======================"
1103 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1104 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1105 @echo >&2 "Failure to update by the deadline may result in board removal."
1106 @echo >&2 "See doc/driver-model/migration.rst for more info."
1107 @echo >&2 "===================================================="
1110 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1111 ifneq ($(CONFIG_WDT),y)
1112 @echo >&2 "===================== WARNING ======================"
1113 @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1114 @echo >&2 "Please update the board to use CONFIG_WDT before the"
1115 @echo >&2 "v2019.10 release."
1116 @echo >&2 "Failure to update by the deadline may result in board removal."
1117 @echo >&2 "See doc/driver-model/migration.rst for more info."
1118 @echo >&2 "===================================================="
1121 ifneq ($(CONFIG_NET),)
1122 ifneq ($(CONFIG_DM_ETH),y)
1123 @echo >&2 "===================== WARNING ======================"
1124 @echo >&2 "This board does not use CONFIG_DM_ETH (Driver Model"
1125 @echo >&2 "for Ethernet drivers). Please update the board to use"
1126 @echo >&2 "CONFIG_DM_ETH before the v2020.07 release. Failure to"
1127 @echo >&2 "update by the deadline may result in board removal."
1128 @echo >&2 "See doc/driver-model/migration.rst for more info."
1129 @echo >&2 "===================================================="
1132 @# Check that this build does not use CONFIG options that we do not
1133 @# know about unless they are in Kconfig. All the existing CONFIG
1134 @# options are whitelisted, so new ones should not be added.
1135 $(call cmd,cfgcheck,u-boot.cfg)
1141 $(Q)$(MAKE) $(build)=dts dtbs
1143 quiet_cmd_copy = COPY $@
1146 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1148 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1149 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1150 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1151 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1153 FINAL_DTB_CONTAINER = fit-dtb.blob
1156 fit-dtb.blob.gz: fit-dtb.blob
1159 fit-dtb.blob.lzo: fit-dtb.blob
1162 fit-dtb.blob: dts/dt.dtb FORCE
1163 $(call if_changed,mkimage)
1164 ifneq ($(SOURCE_DATE_EPOCH),)
1165 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1166 chmod 0600 fit-dtb.blob
1169 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1171 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1174 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1175 $(call if_changed,cat)
1177 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1178 $(call if_changed,cat)
1181 u-boot.bin: u-boot-fit-dtb.bin FORCE
1182 $(call if_changed,copy)
1184 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1185 $(call if_changed,cat)
1187 else ifeq ($(CONFIG_OF_SEPARATE),y)
1188 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1189 $(call if_changed,cat)
1191 u-boot.bin: u-boot-dtb.bin FORCE
1192 $(call if_changed,copy)
1194 u-boot.bin: u-boot-nodtb.bin FORCE
1195 $(call if_changed,copy)
1198 # we call Makefile in arch/arm/mach-imx which
1199 # has targets which are dependent on targets defined
1200 # here. make could not resolve them and we must ensure
1201 # that they are finished before calling imx targets
1202 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1203 IMX_DEPS = u-boot-fit-dtb.bin
1206 %.imx: $(IMX_DEPS) %.bin
1207 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1211 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1213 quiet_cmd_copy = COPY $@
1216 u-boot.dtb: dts/dt.dtb
1219 OBJCOPYFLAGS_u-boot.hex := -O ihex
1221 OBJCOPYFLAGS_u-boot.srec := -O srec
1223 u-boot.hex u-boot.srec: u-boot FORCE
1224 $(call if_changed,objcopy)
1226 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1228 u-boot-elf.srec: u-boot.elf FORCE
1229 $(call if_changed,objcopy)
1231 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1233 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1234 $(call if_changed,objcopy)
1237 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1239 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1240 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1241 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1243 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1245 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1246 $(call if_changed,objcopy)
1248 binary_size_check: u-boot-nodtb.bin FORCE
1249 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1250 map_size=$(shell cat u-boot.map | \
1251 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1254 if [ "" != "$$map_size" ]; then \
1255 if test $$map_size -ne $$file_size; then \
1256 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1257 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1262 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1263 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1264 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1266 subtract_sys_malloc_f_len = true
1268 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1269 # so low that the DTB could probably use 90%+ of the available space, for
1270 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1271 # safe for now and tweak this later if space becomes tight.
1272 # A rejected alternative would be to check that some absolute minimum stack
1273 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1274 # deliberately build-specific, to take account of build-to-build stack usage
1275 # differences due to different feature sets, there is no common absolute value
1277 init_sp_bss_offset_check: u-boot.dtb FORCE
1278 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1279 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1280 $(subtract_sys_malloc_f_len) ; \
1281 quarter_space=$$(($${space} / 4)) ; \
1282 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1283 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1284 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1289 u-boot-nodtb.bin: u-boot FORCE
1290 $(call if_changed,objcopy)
1291 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1296 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1300 # ---------------------------------------------------------------------------
1301 # Use 'make BINMAN_DEBUG=1' to enable debugging
1302 quiet_cmd_binman = BINMAN $@
1303 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1304 --toolpath $(objtree)/tools \
1305 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1306 build -u -d u-boot.dtb -O . -m \
1307 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1310 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1312 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1314 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1315 $(call if_changed,objcopy)
1318 # U-Boot entry point, needed for booting of full-blown U-Boot
1319 # from the SPL U-Boot version.
1321 ifndef CONFIG_SYS_UBOOT_START
1322 CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE)
1325 # Boards with more complex image requirements can provide an .its source file
1326 # or a generator script
1327 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1328 U_BOOT_ITS := u-boot.its
1329 $(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1330 $(call if_changed,copy)
1332 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1333 U_BOOT_ITS := u-boot.its
1334 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1335 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1337 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1338 U_BOOT_ITS_DEPS += u-boot
1340 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1341 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1342 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1346 ifdef CONFIG_SPL_LOAD_FIT
1347 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1348 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1349 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1350 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1351 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1352 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1354 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1355 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1356 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1357 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1358 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1359 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1360 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1363 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1365 # Some boards have the kwbimage.cfg file written in advance, while some
1366 # other boards generate it on the fly during the build in the build tree.
1367 # Let's check if the file exists in the build tree first, otherwise we
1368 # fall back to use the one in the source tree.
1369 KWD_CONFIG_FILE = $(shell \
1370 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1371 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1373 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1376 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1377 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1379 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \
1380 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1381 $(if $(KEYDIR),-k $(KEYDIR))
1383 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1384 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1386 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1387 UBOOT_BIN := u-boot-with-dtb.bin
1389 UBOOT_BIN := u-boot.bin
1392 MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
1393 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1394 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1396 u-boot.bin.lzma: u-boot.bin FORCE
1397 $(call if_changed,lzma)
1399 u-boot-lzma.img: u-boot.bin.lzma FORCE
1400 $(call if_changed,mkimage)
1402 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1403 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
1404 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1405 ,$(UBOOT_BIN)) FORCE
1406 $(call if_changed,mkimage)
1409 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1410 MKIMAGEFLAGS_u-boot.itb =
1412 MKIMAGEFLAGS_u-boot.itb = -E
1415 u-boot.itb: u-boot-nodtb.bin \
1416 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1418 $(call if_changed,mkfitimage)
1421 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1422 $(call if_changed,mkimage)
1424 u-boot.sha1: u-boot.bin
1425 tools/ubsha1 u-boot.bin
1428 $(OBJDUMP) -d $< > $@
1430 ifneq ($(CONFIG_SPL_PAYLOAD),)
1431 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1433 SPL_PAYLOAD := u-boot.bin
1436 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1438 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1439 --pad-to=$(CONFIG_SPL_PAD_TO)
1440 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1441 $(call if_changed,pad_cat)
1443 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
1445 # rockchip image type
1446 ifeq ($(CONFIG_SPL_SPI_LOAD),y)
1447 ROCKCHIP_IMG_TYPE := rkspi
1449 ROCKCHIP_IMG_TYPE := rksd
1453 ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy)
1454 MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T $(ROCKCHIP_IMG_TYPE)
1455 tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE
1456 $(call if_changed,mkimage)
1457 idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE
1458 $(call if_changed,cat)
1460 MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T $(ROCKCHIP_IMG_TYPE)
1461 idbloader.img: spl/u-boot-spl.bin FORCE
1462 $(call if_changed,mkimage)
1465 ifeq ($(CONFIG_ARM64),)
1466 u-boot-rockchip.bin: idbloader.img u-boot.img FORCE
1467 $(call if_changed,binman)
1469 OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \
1470 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1471 u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE
1472 $(call if_changed,pad_cat)
1473 endif # CONFIG_ARM64
1475 endif # CONFIG_ARCH_ROCKCHIP
1477 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1478 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1480 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1481 $(call if_changed,mkimage)
1483 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1485 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1486 $(call if_changed,objcopy)
1488 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1490 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1491 $(call if_changed,objcopy)
1493 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1494 $(call if_changed,cat)
1498 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1499 --pad-to=$(CONFIG_TPL_PAD_TO)
1500 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1501 $(call if_changed,pad_cat)
1503 SPL: spl/u-boot-spl.bin FORCE
1504 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1506 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1507 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1508 u-boot.cnt: u-boot.bin FORCE
1509 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1511 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1512 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1514 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1515 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1519 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1520 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1522 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1524 u-boot.ubl: u-boot-with-spl.bin FORCE
1525 $(call if_changed,mkimage)
1527 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1528 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1529 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1530 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1531 $(call if_changed,mkimage)
1533 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1534 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1535 $(call if_changed,pad_cat)
1537 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1538 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1539 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1540 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1542 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1543 # Both images are created using mkimage (crc etc), so that the ROM
1544 # bootloader can check its integrity. Padding needs to be done to the
1545 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1546 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1547 # The resulting image containing both U-Boot images is called u-boot.spr
1548 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1549 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1550 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1551 $(call if_changed,mkimage)
1553 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1555 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1556 $(call if_changed,pad_cat)
1558 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1559 quiet_cmd_socboot = SOCBOOT $@
1560 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1561 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1562 u-boot.img > $@ || rm -f $@
1563 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1564 $(call if_changed,socboot)
1566 quiet_cmd_socnandboot = SOCNANDBOOT $@
1567 cmd_socnandboot = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1568 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1569 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1570 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1571 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1572 u-boot.img > $@ || rm -f $@ spl/u-boot-spl.pad
1573 u-boot-with-nand-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1574 $(call if_changed,socnandboot)
1578 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1579 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1580 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1581 $(call if_changed,binman)
1583 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1584 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1585 u-boot-br.bin: u-boot FORCE
1586 $(call if_changed,objcopy)
1590 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1591 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1592 # the middle. This is handled by binman based on an image description in the
1593 # board's device tree.
1594 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1595 rom: u-boot.rom FORCE
1597 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1598 $(call if_changed,copy)
1600 quiet_cmd_ldr = LD $@
1601 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1602 $(filter-out FORCE,$^) -o $@
1604 u-boot.rom: u-boot-x86-start16.bin u-boot-x86-reset16.bin u-boot.bin \
1605 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1606 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
1607 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1608 $(call if_changed,binman)
1610 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1611 u-boot-x86-start16.bin: u-boot FORCE
1612 $(call if_changed,objcopy)
1614 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1615 u-boot-x86-reset16.bin: u-boot FORCE
1616 $(call if_changed,objcopy)
1619 ifneq ($(CONFIG_ARCH_SUNXI),)
1620 ifeq ($(CONFIG_ARM64),)
1621 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1622 $(call if_changed,binman)
1624 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1625 $(call if_changed,cat)
1629 ifneq ($(CONFIG_TEGRA),)
1630 ifneq ($(CONFIG_BINMAN),)
1631 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1632 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1633 spl/%-spl %.bin FORCE
1634 $(call if_changed,binman)
1636 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1637 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1638 $(call if_changed,pad_cat)
1640 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1641 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1642 $(call if_changed,pad_cat)
1644 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1645 $(call if_changed,copy)
1649 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1650 u-boot-app.efi: u-boot FORCE
1651 $(call if_changed,zobjcopy)
1653 u-boot.bin.o: u-boot.bin FORCE
1654 $(call if_changed,efipayload)
1656 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1657 $(call if_changed_dep,cpp_lds)
1659 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1660 quiet_cmd_u-boot_payload ?= LD $@
1661 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1662 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1663 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1664 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1666 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1667 $(call if_changed,u-boot_payload)
1669 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1670 u-boot-payload.efi: u-boot-payload FORCE
1671 $(call if_changed,zobjcopy)
1673 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1674 $(call if_changed,cat)
1676 #Add a target to create boot binary having SPL binary in PBI format
1677 #concatenated with u-boot binary. It is need by PowerPC SoC having
1678 #internal SRAM <= 512KB.
1679 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1680 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1681 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1683 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1684 $(call if_changed,mkimage)
1687 UBOOT_BINLOAD := u-boot.img
1689 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1690 UBOOT_BINLOAD := u-boot-with-dtb.bin
1692 UBOOT_BINLOAD := u-boot.bin
1696 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1699 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1700 $(call if_changed,pad_cat)
1702 # PPC4xx needs the SPL at the end of the image, since the reset vector
1703 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1704 # and need to introduce a new build target with the full blown U-Boot
1705 # at the start padded up to the start of the SPL image. And then concat
1706 # the SPL image to the end.
1708 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1709 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1710 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1711 $(call if_changed,pad_cat)
1713 quiet_cmd_u-boot-elf ?= LD $@
1714 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1715 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1716 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1717 u-boot.elf: u-boot.bin u-boot-elf.lds
1718 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1719 $(call if_changed,u-boot-elf)
1721 u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
1722 $(call if_changed_dep,cpp_lds)
1724 # MediaTek's ARM-based u-boot needs a header to contains its load address
1725 # which is parsed by the BootROM.
1726 # If the SPL build is enabled, the header will be added to the spl binary,
1727 # and the spl binary and the u-boot.img will be combined into one file.
1728 # Otherwise the header will be added to the u-boot.bin directly.
1730 ifeq ($(CONFIG_SPL),y)
1731 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1733 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1734 $(call if_changed,binman)
1736 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1737 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1738 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1740 u-boot-mtk.bin: u-boot.bin FORCE
1741 $(call if_changed,mkimage)
1744 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1746 # Rule to link u-boot
1747 # May be overridden by arch/$(ARCH)/config.mk
1748 quiet_cmd_u-boot__ ?= LD $@
1749 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1750 -T u-boot.lds $(u-boot-init) \
1751 --start-group $(u-boot-main) --end-group \
1752 $(PLATFORM_LIBS) -Map u-boot.map; \
1753 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1755 quiet_cmd_smap = GEN common/system_map.o
1757 smap=`$(call SYSTEM_MAP,u-boot) | \
1758 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1759 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1760 -c $(srctree)/common/system_map.c -o common/system_map.o
1762 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1763 +$(call if_changed,u-boot__)
1764 ifeq ($(CONFIG_KALLSYMS),y)
1766 $(call cmd,u-boot__) common/system_map.o
1769 ifeq ($(CONFIG_RISCV),y)
1770 @tools/prelink-riscv $@ 0
1773 quiet_cmd_sym ?= SYM $@
1774 cmd_sym ?= $(OBJDUMP) -t $< > $@
1775 u-boot.sym: u-boot FORCE
1776 $(call if_changed,sym)
1778 # The actual objects are generated when descending,
1779 # make sure no implicit rule kicks in
1780 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1782 # Handle descending into subdirectories listed in $(u-boot-dirs)
1783 # Preset locale variables to speed up the build process. Limit locale
1784 # tweaks to this spot to avoid wrong language settings when running
1785 # make menuconfig etc.
1786 # Error messages still appears in the original language
1788 PHONY += $(u-boot-dirs)
1789 $(u-boot-dirs): prepare scripts
1790 $(Q)$(MAKE) $(build)=$@
1793 # The "tools" are needed early
1794 $(filter-out tools, $(u-boot-dirs)): tools
1795 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1796 # is "yes"), so compile examples after U-Boot is compiled.
1797 examples: $(filter-out examples, $(u-boot-dirs))
1799 define filechk_uboot.release
1800 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1803 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1804 include/config/uboot.release: include/config/auto.conf FORCE
1805 $(call filechk,uboot.release)
1808 # Things we need to do before we recursively start building the kernel
1809 # or the modules are listed in "prepare".
1810 # A multi level approach is used. prepareN is processed before prepareN-1.
1811 # archprepare is used in arch Makefiles and when processed asm symlink,
1812 # version.h and scripts_basic is processed / created.
1814 # Listed in dependency order
1815 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1817 # prepare3 is used to check if we are building in a separate output directory,
1819 # 1) Check that make has not been executed in the kernel src $(srctree)
1820 prepare3: include/config/uboot.release
1821 ifneq ($(KBUILD_SRC),)
1822 @$(kecho) ' Using $(srctree) as source for U-Boot'
1823 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1824 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1825 echo >&2 " in the '$(srctree)' directory.";\
1830 # prepare2 creates a makefile if using a separate output directory
1831 prepare2: prepare3 outputmakefile cfg
1833 prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) \
1834 include/config/auto.conf
1835 ifeq ($(wildcard $(LDSCRIPT)),)
1836 @echo >&2 " Could not find linker script."
1840 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1841 prepare1: $(defaultenv_h)
1844 archprepare: prepare1 scripts_basic
1846 prepare0: archprepare FORCE
1847 $(Q)$(MAKE) $(build)=.
1849 # All the preparing..
1852 # Generate some files
1853 # ---------------------------------------------------------------------------
1855 define filechk_version.h
1856 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1857 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1858 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1859 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1862 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1863 # The BSD date on the other hand behaves different and would produce errors
1864 # with the misused '-d' switch. Respect that and search a working date with
1865 # well known pre- and suffixes for the GNU variant of date.
1866 define filechk_timestamp.h
1867 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1868 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1870 for date in gdate date.gnu date; do \
1871 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1873 if test -n "$${DATE}"; then \
1874 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1875 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1876 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1877 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1878 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1883 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1884 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1885 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1886 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1887 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1891 define filechk_defaultenv.h
1895 sed -e 's/\\\x0\s*//g' | \
1896 xxd -i ; echo ", 0x00" ; )
1900 (if test -n "$${DEVICE_TREE}"; then \
1901 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
1903 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
1907 $(version_h): include/config/uboot.release FORCE
1908 $(call filechk,version.h)
1910 $(timestamp_h): $(srctree)/Makefile FORCE
1911 $(call filechk,timestamp.h)
1913 $(dt_h): $(srctree)/Makefile FORCE
1914 $(call filechk,dt.h)
1916 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1917 $(call filechk,defaultenv.h)
1919 # ---------------------------------------------------------------------------
1920 quiet_cmd_cpp_lds = LDS $@
1921 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1922 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1924 u-boot.lds: $(LDSCRIPT) prepare FORCE
1925 $(call if_changed_dep,cpp_lds)
1927 spl/u-boot-spl.bin: spl/u-boot-spl
1931 spl/u-boot-spl: tools prepare \
1932 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1933 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1934 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1936 spl/sunxi-spl.bin: spl/u-boot-spl
1939 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1942 spl/u-boot-spl.sfp: spl/u-boot-spl
1945 spl/boot.bin: spl/u-boot-spl
1948 tpl/u-boot-tpl.bin: tools prepare \
1949 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1950 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1953 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1959 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1960 -name '*.[chS]' -print`
1964 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1965 -name '*.[chS]' -print`
1967 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1969 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
1970 grep -xvf - cscope.files > cscope.files.no-symlinks; \
1971 mv cscope.files.no-symlinks cscope.files
1976 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1979 @$(call SYSTEM_MAP,$<) > $@
1981 #########################################################################
1983 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1984 # R_AARCH64_RELATIVE (64-bit).
1985 checkarmreloc: u-boot
1986 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1987 grep R_A | sort -u`"; \
1988 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1989 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1990 echo "$< contains unexpected relocations: $$RELOC"; \
1994 tools/version.h: include/version.h
1995 $(Q)mkdir -p $(dir $@)
1996 $(call if_changed,copy)
1998 envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h
1999 $(Q)$(MAKE) $(build)=tools/env
2001 tools-only: export TOOLS_ONLY=y
2002 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2003 $(Q)$(MAKE) $(build)=tools
2005 tools-all: export HOST_TOOLS_ALL=y
2006 tools-all: envtools tools ;
2008 cross_tools: export CROSS_BUILD_TOOLS=y
2009 cross_tools: tools ;
2013 git log --no-merges U-Boot-1_1_5.. | \
2014 unexpand -a | sed -e 's/\s\s*$$//' > $@
2016 #########################################################################
2019 # Cleaning is done on three levels.
2020 # make clean Delete most generated files
2021 # Leave enough to build external modules
2022 # make mrproper Delete the current configuration, and all generated files
2023 # make distclean Remove editor backup files, patch leftover files and the like
2025 # Directories & files removed with 'make clean'
2026 CLEAN_DIRS += $(MODVERDIR) \
2027 $(foreach d, spl tpl, $(patsubst %,$d/%, \
2028 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
2030 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \
2031 boot* u-boot* MLO* SPL System.map fit-dtb.blob* \
2032 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
2033 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
2034 idbloader.img flash.bin flash.log
2036 # Directories & files removed with 'make mrproper'
2037 MRPROPER_DIRS += include/config include/generated spl tpl \
2039 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
2040 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
2041 drivers/video/fonts/*.S
2043 # clean - Delete most, but leave enough to build external modules
2045 clean: rm-dirs := $(CLEAN_DIRS)
2046 clean: rm-files := $(CLEAN_FILES)
2048 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
2050 clean-dirs := $(addprefix _clean_, $(clean-dirs))
2052 PHONY += $(clean-dirs) clean archclean
2054 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
2056 clean: $(clean-dirs)
2059 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
2060 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
2061 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
2062 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
2063 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
2064 -o -name '*.asn1.[ch]' \
2065 -o -name '*.symtypes' -o -name 'modules.order' \
2066 -o -name modules.builtin -o -name '.tmp_*.o.*' \
2067 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
2068 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
2069 -type f -print | xargs rm -f
2071 # mrproper - Delete all generated files, including .config
2073 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
2074 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
2075 mrproper-dirs := $(addprefix _mrproper_,scripts)
2077 PHONY += $(mrproper-dirs) mrproper archmrproper
2079 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
2081 mrproper: clean $(mrproper-dirs)
2084 @rm -f arch/*/include/asm/arch
2091 @find $(srctree) $(RCS_FIND_IGNORE) \
2092 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
2093 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
2094 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
2095 -o -name '*.pyc' \) \
2096 -type f -print | xargs rm -f
2097 @rm -f boards.cfg CHANGELOG
2100 F=`basename $(srctree)` ; cd .. ; \
2101 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2104 @echo 'Cleaning targets:'
2105 @echo ' clean - Remove most generated files but keep the config'
2106 @echo ' mrproper - Remove all generated files + config + various backup files'
2107 @echo ' distclean - mrproper + remove editor backup and patch files'
2109 @echo 'Configuration targets:'
2110 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2112 @echo 'Test targets:'
2114 @echo ' check - Run all automated tests that use sandbox'
2115 @echo ' qcheck - Run quick automated tests that use sandbox'
2116 @echo ' tcheck - Run quick automated tests on tools'
2118 @echo 'Other generic targets:'
2119 @echo ' all - Build all necessary images depending on configuration'
2120 @echo ' tests - Build U-Boot for sandbox and run tests'
2121 @echo '* u-boot - Build the bare u-boot'
2122 @echo ' dir/ - Build all files in dir and below'
2123 @echo ' dir/file.[oisS] - Build specified target only'
2124 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
2125 @echo ' (requires a recent binutils and recent build (System.map))'
2126 @echo ' tags/ctags - Generate ctags file for editors'
2127 @echo ' etags - Generate etags file for editors'
2128 @echo ' cscope - Generate cscope index'
2129 @echo ' ubootrelease - Output the release version string (use with make -s)'
2130 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
2131 @echo " cfg - Don't build, just create the .cfg files"
2132 @echo " envtools - Build only the target-side environment tools"
2134 @echo 'Static analysers'
2135 @echo ' checkstack - Generate a list of stack hogs'
2136 @echo ' coccicheck - Execute static code analysis with Coccinelle'
2138 @echo 'Documentation targets:'
2139 @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2141 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2142 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
2143 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
2144 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
2145 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
2146 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2147 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
2148 @echo ' 1: warnings which may be relevant and do not occur too often'
2149 @echo ' 2: warnings which occur quite often but may still be relevant'
2150 @echo ' 3: more obscure warnings, can most likely be ignored'
2151 @echo ' Multiple levels can be combined with W=12 or W=123'
2153 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
2154 @echo 'For further info see the ./README file'
2160 $(srctree)/test/run quick
2163 $(srctree)/test/run tools
2165 # Documentation targets
2166 # ---------------------------------------------------------------------------
2167 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2168 linkcheckdocs dochelp refcheckdocs
2169 PHONY += $(DOC_TARGETS)
2170 $(DOC_TARGETS): scripts_basic FORCE
2171 $(Q)$(MAKE) $(build)=doc $@
2173 endif #ifeq ($(config-targets),1)
2174 endif #ifeq ($(mixed-targets),1)
2176 PHONY += checkstack ubootrelease ubootversion
2179 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2180 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2183 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
2186 @echo $(UBOOTVERSION)
2189 # ---------------------------------------------------------------------------
2190 # Single targets are compatible with:
2191 # - build with mixed source and output
2192 # - build with separate output dir 'make O=...'
2193 # - external modules
2195 # target-dir => where to store outputfile
2196 # build-dir => directory in kernel source tree to use
2198 ifeq ($(KBUILD_EXTMOD),)
2199 build-dir = $(patsubst %/,%,$(dir $@))
2200 target-dir = $(dir $@)
2202 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2203 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2204 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2207 %.s: %.c prepare scripts FORCE
2208 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2209 %.i: %.c prepare scripts FORCE
2210 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2211 %.o: %.c prepare scripts FORCE
2212 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2213 %.lst: %.c prepare scripts FORCE
2214 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2215 %.s: %.S prepare scripts FORCE
2216 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2217 %.o: %.S prepare scripts FORCE
2218 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2219 %.symtypes: %.c prepare scripts FORCE
2220 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2223 /: prepare scripts FORCE
2225 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2226 $(build)=$(build-dir)
2227 %/: prepare scripts FORCE
2229 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2230 $(build)=$(build-dir)
2231 %.ko: prepare scripts FORCE
2233 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2234 $(build)=$(build-dir) $(@:.ko=.o)
2235 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2237 quiet_cmd_genenv = GENENV $@
2238 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2239 sed --in-place -e 's/\x00/\x0A/g' $@
2241 u-boot-initial-env: u-boot.bin
2242 $(call if_changed,genenv)
2244 # Consistency checks
2245 # ---------------------------------------------------------------------------
2250 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2252 # FIXME Should go into a make.lib or something
2253 # ===========================================================================
2255 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
2256 cmd_rmdirs = rm -rf $(rm-dirs)
2258 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
2259 cmd_rmfiles = rm -f $(rm-files)
2261 # read all saved command lines
2263 cmd_files := $(wildcard .*.cmd $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
2265 ifneq ($(cmd_files),)
2266 $(cmd_files): ; # Do not try to update included dependency files
2267 include $(cmd_files)
2270 endif # skip-makefile
2275 # Declare the contents of the PHONY variable as phony. We keep that
2276 # information in a variable so we can use it in if_changed and friends.