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 $(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 # Enabled with W=2, disabled by default as noisy
687 KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized)
689 # change __FILE__ to the relative path from the srctree
690 KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
693 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
694 # option to the assembler.
697 # Report stack usage if supported
698 # ARC tools based on GCC 7.1 has an issue with stack usage
699 # with naked functions, see commit message for more details
701 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
702 KBUILD_CFLAGS += -fstack-usage
706 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
707 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
709 ifeq ($(cc-name),clang)
710 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
711 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
712 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
713 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
714 # Quiet clang warning: comparison of unsigned expression < 0 is always false
715 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
716 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
717 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
718 # See modpost pattern 2
719 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
720 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
723 # These warnings generated too much noise in a regular build.
724 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
725 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
728 # Prohibit date/time macros, which would make the build non-deterministic
729 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
731 include scripts/Makefile.extrawarn
733 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
734 KBUILD_CPPFLAGS += $(KCPPFLAGS)
735 KBUILD_AFLAGS += $(KAFLAGS)
736 KBUILD_CFLAGS += $(KCFLAGS)
738 KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g)
740 # Use UBOOTINCLUDE when you must reference the include/ directory.
741 # Needed to be compatible with the O= option
744 $(if $(KBUILD_SRC), -I$(srctree)/include) \
745 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
746 $(if $(CONFIG_HAS_THUMB2), \
747 $(if $(CONFIG_CPU_V7M), \
748 -I$(srctree)/arch/arm/thumb1/include), \
749 -I$(srctree)/arch/arm/thumb1/include)) \
750 -I$(srctree)/arch/$(ARCH)/include \
751 -include $(srctree)/include/linux/kconfig.h
753 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
756 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
758 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
760 #########################################################################
761 # U-Boot objects....order is important (i.e. start must be first)
763 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
766 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
767 libs-$(CONFIG_OF_EMBED) += dts/
772 libs-y += drivers/dma/
773 libs-y += drivers/gpio/
774 libs-y += drivers/i2c/
775 libs-y += drivers/net/
776 libs-y += drivers/net/phy/
777 libs-y += drivers/power/ \
778 drivers/power/domain/ \
779 drivers/power/fuel_gauge/ \
781 drivers/power/pmic/ \
782 drivers/power/battery/ \
783 drivers/power/regulator/
784 libs-y += drivers/spi/
785 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
786 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
787 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
788 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
789 libs-y += drivers/serial/
790 libs-y += drivers/usb/cdns3/
791 libs-y += drivers/usb/dwc3/
792 libs-y += drivers/usb/common/
793 libs-y += drivers/usb/emul/
794 libs-y += drivers/usb/eth/
795 libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/
796 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
797 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
798 libs-y += drivers/usb/host/
799 libs-y += drivers/usb/mtu3/
800 libs-y += drivers/usb/musb/
801 libs-y += drivers/usb/musb-new/
802 libs-y += drivers/usb/phy/
803 libs-y += drivers/usb/ulpi/
807 libs-$(CONFIG_API) += api/
811 libs-$(CONFIG_UNIT_TEST) += test/
812 libs-$(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),0x0)
865 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
870 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0)
871 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
876 # Statically apply RELA-style relocations (currently arm64 only)
877 # This is useful for arm64 where static relocation needs to be performed on
878 # the raw binary, but certain simulators only accept an ELF file (but don't
879 # do the relocation).
880 ifneq ($(CONFIG_STATIC_RELA),)
881 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
882 quiet_cmd_static_rela = RELOC $@
884 start=$$($(NM) $(2) | grep __rel_dyn_start | cut -f 1 -d ' '); \
885 end=$$($(NM) $(2) | grep __rel_dyn_end | cut -f 1 -d ' '); \
886 tools/relocate-rela $(3) $(4) $$start $$end
888 quiet_cmd_static_rela =
892 # Always append INPUTS so that arch config.mk's can add custom ones
893 INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
895 INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
896 ifeq ($(CONFIG_SPL_FSL_PBL),y)
897 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
899 ifneq ($(CONFIG_NXP_ESBC), y)
900 # For Secure Boot The Image needs to be signed and Header must also
901 # be included. So The image has to be built explicitly
902 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
905 INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin
906 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
907 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
909 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
910 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
912 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
915 INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
916 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot.dtb
917 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
918 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
920 INPUTS-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
921 ifneq ($(CONFIG_SPL_TARGET),)
922 INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
924 INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf
925 INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi
926 INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi
928 # Generate this input file for binman
929 ifeq ($(CONFIG_SPL),)
930 INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
933 # Add optional build target if defined in board/cpu/soc headers
934 ifneq ($(CONFIG_BUILD_TARGET),)
935 INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%)
938 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
939 INPUTS-y += init_sp_bss_offset_check
942 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
943 INPUTS-y += u-boot-with-dtb.bin
946 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
947 # On ARM64 this target is produced by binman so we don't need this dep
948 ifeq ($(CONFIG_ARM64),y)
949 ifeq ($(CONFIG_SPL),y)
950 # TODO: Get binman to generate this too
951 INPUTS-y += u-boot-rockchip.bin
954 ifeq ($(CONFIG_SPL),y)
955 # Generate these inputs for binman which will create the output files
956 INPUTS-y += idbloader.img u-boot.img
961 INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \
962 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
963 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin)
965 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
967 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
968 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
970 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
971 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
974 # insure the checker run with the right endianness
975 CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
977 # the checker needs the correct machine size
978 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
980 # Normally we fill empty space with 0xff
981 quiet_cmd_objcopy = OBJCOPY $@
982 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
983 $(OBJCOPYFLAGS_$(@F)) $< $@
985 # Provide a version which does not do this, for use by EFI
986 quiet_cmd_zobjcopy = OBJCOPY $@
987 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
989 quiet_cmd_efipayload = OBJCOPY $@
990 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
992 MKIMAGEOUTPUT ?= /dev/null
994 quiet_cmd_mkimage = MKIMAGE $@
995 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
996 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
998 quiet_cmd_mkfitimage = MKIMAGE $@
999 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \
1000 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \
1001 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1003 quiet_cmd_cat = CAT $@
1004 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
1006 append = cat $(filter-out $< $(PHONY), $^) >> $@
1008 quiet_cmd_pad_cat = CAT $@
1009 cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; }
1011 quiet_cmd_lzma = LZMA $@
1012 cmd_lzma = lzma -c -z -k -9 $< > $@
1016 quiet_cmd_cfgcheck = CFGCHK $2
1017 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
1018 $(srctree)/scripts/config_whitelist.txt $(srctree)
1020 # Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. )
1021 got = $(foreach cfg,$(1),$($(cfg)))
1023 # expected value 'y for each one
1024 expect = $(foreach cfg,$(1),y)
1026 # Show a deprecation message
1028 # 1: List of CONFIG_DM_... to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK")
1029 # 2: Name of component (e.g . "Ethernet drivers")
1030 # 3: Release deadline (e.g. "v202.07")
1031 # 4: Condition to require before checking (e.g. "$(CONFIG_NET)")
1032 # Note: Script avoids bash construct, hence the strange double 'if'
1033 # (patches welcome!)
1035 if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \
1036 echo >&2 "===================== WARNING ======================"; \
1037 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \
1038 echo >&2 "for $(2)). Please update the board to use"; \
1039 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \
1040 echo >&2 "update by the deadline may result in board removal."; \
1041 echo >&2 "See doc/driver-model/migration.rst for more info."; \
1042 echo >&2 "===================================================="; \
1050 all: .binman_stamp inputs
1051 ifeq ($(CONFIG_BINMAN),y)
1052 $(call if_changed,binman)
1055 # Timestamp file to make sure that binman always runs
1056 .binman_stamp: FORCE
1059 ifeq ($(CONFIG_DEPRECATED),y)
1060 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
1061 ifeq ($(CONFIG_SPI),y)
1062 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
1063 $(warning "The relevant config item with associated code will remove in v2019.07 release.")
1067 ifeq ($(CONFIG_OF_EMBED),y)
1068 @echo >&2 "===================== WARNING ======================"
1069 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1070 @echo >&2 "be used for debugging purposes. Please use"
1071 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1072 @echo >&2 "See doc/README.fdt-control for more info."
1073 @echo >&2 "===================================================="
1075 ifneq ($(CONFIG_SPL_FIT_GENERATOR),)
1076 @echo >&2 "===================== WARNING ======================"
1077 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate"
1078 @echo >&2 "to binman instead, to avoid the proliferation of"
1079 @echo >&2 "arch-specific scripts with no tests."
1080 @echo >&2 "===================================================="
1082 ifneq ($(CONFIG_DM),y)
1083 @echo >&2 "===================== WARNING ======================"
1084 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
1085 @echo >&2 "compulsory starting with the v2020.01 release."
1086 @echo >&2 "Failure to update may result in board removal."
1087 @echo >&2 "See doc/driver-model/migration.rst for more info."
1088 @echo >&2 "===================================================="
1090 $(call deprecated,CONFIG_DM_MMC CONFIG_BLK,MMC,v2019.04,$(CONFIG_MMC))
1091 $(call deprecated,CONFIG_DM_USB CONFIG_OF_CONTROL CONFIG_BLK,\
1092 USB,v2019.07,$(CONFIG_USB))
1093 ifeq ($(CONFIG_MVSATA_IDE),y)
1094 @echo >&2 "===================== WARNING ======================"
1095 @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
1096 @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
1097 @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
1098 @echo >&2 "release."
1099 @echo >&2 "Failure to update by the deadline may result in board removal."
1100 @echo >&2 "See doc/driver-model/migration.rst for more info."
1101 @echo >&2 "===================================================="
1103 ifeq ($(CONFIG_LIBATA),y)
1104 ifneq ($(CONFIG_AHCI),y)
1105 @echo >&2 "===================== WARNING ======================"
1106 @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
1107 @echo >&2 "enabled. Please update the storage controller driver to use"
1108 @echo >&2 "CONFIG_AHCI before the v2019.07 release."
1109 @echo >&2 "Failure to update by the deadline may result in board removal."
1110 @echo >&2 "See doc/driver-model/migration.rst for more info."
1111 @echo >&2 "===================================================="
1114 ifeq ($(CONFIG_PCI),y)
1115 ifneq ($(CONFIG_DM_PCI),y)
1116 @echo >&2 "===================== WARNING ======================"
1117 @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
1118 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
1119 @echo >&2 "Failure to update by the deadline may result in board removal."
1120 @echo >&2 "See doc/driver-model/migration.rst for more info."
1121 @echo >&2 "===================================================="
1124 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
1125 ifneq ($(CONFIG_DM_VIDEO),y)
1126 @echo >&2 "===================== WARNING ======================"
1127 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
1128 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
1129 @echo >&2 "Failure to update by the deadline may result in board removal."
1130 @echo >&2 "See doc/driver-model/migration.rst for more info."
1131 @echo >&2 "===================================================="
1134 ifeq ($(CONFIG_SPI_FLASH),y)
1135 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1136 @echo >&2 "===================== WARNING ======================"
1137 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1138 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1139 @echo >&2 "Failure to update by the deadline may result in board removal."
1140 @echo >&2 "See doc/driver-model/migration.rst for more info."
1141 @echo >&2 "===================================================="
1144 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1145 ifneq ($(CONFIG_WDT),y)
1146 @echo >&2 "===================== WARNING ======================"
1147 @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1148 @echo >&2 "Please update the board to use CONFIG_WDT before the"
1149 @echo >&2 "v2019.10 release."
1150 @echo >&2 "Failure to update by the deadline may result in board removal."
1151 @echo >&2 "See doc/driver-model/migration.rst for more info."
1152 @echo >&2 "===================================================="
1155 ifneq ($(CONFIG_NET),)
1156 ifneq ($(CONFIG_DM_ETH),y)
1157 @echo >&2 "===================== WARNING ======================"
1158 @echo >&2 "This board does not use CONFIG_DM_ETH (Driver Model"
1159 @echo >&2 "for Ethernet drivers). Please update the board to use"
1160 @echo >&2 "CONFIG_DM_ETH before the v2020.07 release. Failure to"
1161 @echo >&2 "update by the deadline may result in board removal."
1162 @echo >&2 "See doc/driver-model/migration.rst for more info."
1163 @echo >&2 "===================================================="
1166 @# Check that this build does not use CONFIG options that we do not
1167 @# know about unless they are in Kconfig. All the existing CONFIG
1168 @# options are whitelisted, so new ones should not be added.
1169 $(call cmd,cfgcheck,u-boot.cfg)
1175 $(Q)$(MAKE) $(build)=dts dtbs
1177 quiet_cmd_copy = COPY $@
1180 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1182 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1183 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1184 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1185 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1187 FINAL_DTB_CONTAINER = fit-dtb.blob
1190 fit-dtb.blob.gz: fit-dtb.blob
1193 fit-dtb.blob.lzo: fit-dtb.blob
1196 fit-dtb.blob: dts/dt.dtb FORCE
1197 $(call if_changed,mkimage)
1198 ifneq ($(SOURCE_DATE_EPOCH),)
1199 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1200 chmod 0600 fit-dtb.blob
1203 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1205 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1208 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1209 $(call if_changed,cat)
1211 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1212 $(call if_changed,cat)
1215 u-boot.bin: u-boot-fit-dtb.bin FORCE
1216 $(call if_changed,copy)
1218 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1219 $(call if_changed,cat)
1221 else ifeq ($(CONFIG_OF_SEPARATE),y)
1222 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1223 $(call if_changed,cat)
1225 u-boot.bin: u-boot-dtb.bin FORCE
1226 $(call if_changed,copy)
1228 u-boot.bin: u-boot-nodtb.bin FORCE
1229 $(call if_changed,copy)
1232 # we call Makefile in arch/arm/mach-imx which
1233 # has targets which are dependent on targets defined
1234 # here. make could not resolve them and we must ensure
1235 # that they are finished before calling imx targets
1236 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1237 IMX_DEPS = u-boot-fit-dtb.bin
1240 %.imx: $(IMX_DEPS) %.bin
1241 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1245 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1247 quiet_cmd_copy = COPY $@
1250 u-boot.dtb: dts/dt.dtb
1253 OBJCOPYFLAGS_u-boot.hex := -O ihex
1255 OBJCOPYFLAGS_u-boot.srec := -O srec
1257 u-boot.hex u-boot.srec: u-boot FORCE
1258 $(call if_changed,objcopy)
1260 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1262 u-boot-elf.srec: u-boot.elf FORCE
1263 $(call if_changed,objcopy)
1265 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1267 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1268 $(call if_changed,objcopy)
1271 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1273 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1274 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1275 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1277 binary_size_check: u-boot-nodtb.bin FORCE
1278 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1279 map_size=$(shell cat u-boot.map | \
1280 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1283 if [ "" != "$$map_size" ]; then \
1284 if test $$map_size -ne $$file_size; then \
1285 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1286 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1291 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1292 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1293 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1295 subtract_sys_malloc_f_len = true
1297 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1298 # so low that the DTB could probably use 90%+ of the available space, for
1299 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1300 # safe for now and tweak this later if space becomes tight.
1301 # A rejected alternative would be to check that some absolute minimum stack
1302 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1303 # deliberately build-specific, to take account of build-to-build stack usage
1304 # differences due to different feature sets, there is no common absolute value
1306 init_sp_bss_offset_check: u-boot.dtb FORCE
1307 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1308 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1309 $(subtract_sys_malloc_f_len) ; \
1310 quarter_space=$$(($${space} / 4)) ; \
1311 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1312 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1313 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1318 shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
1320 quiet_cmd_objcopy_uboot = OBJCOPY $@
1321 ifdef cmd_static_rela
1322 cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) || { rm -f $@; false; }
1324 cmd_objcopy_uboot = $(cmd_objcopy)
1327 u-boot-nodtb.bin: u-boot FORCE
1328 $(call if_changed,objcopy_uboot)
1333 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1337 # ---------------------------------------------------------------------------
1338 # Use 'make BINMAN_DEBUG=1' to enable debugging
1339 default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE))
1340 quiet_cmd_binman = BINMAN $@
1341 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1342 --toolpath $(objtree)/tools \
1343 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1344 build -u -d u-boot.dtb -O . -m --allow-missing \
1345 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1346 -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \
1347 -a atf-bl31-path=${BL31} \
1348 -a default-dt=$(default_dt) \
1349 -a scp-path=$(SCP) \
1352 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1354 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1356 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1357 $(call if_changed,objcopy)
1360 # U-Boot entry point, needed for booting of full-blown U-Boot
1361 # from the SPL U-Boot version.
1363 ifndef CONFIG_SYS_UBOOT_START
1364 CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE)
1367 # Boards with more complex image requirements can provide an .its source file
1368 # or a generator script
1369 # NOTE: Please do not use this. We are migrating away from Makefile rules to use
1371 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1372 U_BOOT_ITS := u-boot.its
1373 $(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1374 $(call if_changed,copy)
1376 ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),)
1377 U_BOOT_ITS := u-boot.its
1378 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1379 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1381 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1382 U_BOOT_ITS_DEPS += u-boot
1384 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1385 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1386 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1390 ifdef CONFIG_SPL_LOAD_FIT
1391 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1392 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1393 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1394 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1395 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \
1396 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1397 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1399 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1400 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1401 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1402 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1403 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1404 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1405 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1408 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1410 # Some boards have the kwbimage.cfg file written in advance, while some
1411 # other boards generate it on the fly during the build in the build tree.
1412 # Let's check if the file exists in the build tree first, otherwise we
1413 # fall back to use the one in the source tree.
1414 KWD_CONFIG_FILE = $(shell \
1415 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1416 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1418 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1421 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1422 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1424 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \
1425 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1426 $(if $(KEYDIR),-k $(KEYDIR))
1428 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1429 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1431 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1432 UBOOT_BIN := u-boot-with-dtb.bin
1434 UBOOT_BIN := u-boot.bin
1437 MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
1438 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1439 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1441 u-boot.bin.lzma: u-boot.bin FORCE
1442 $(call if_changed,lzma)
1444 u-boot-lzma.img: u-boot.bin.lzma FORCE
1445 $(call if_changed,mkimage)
1447 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1448 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
1449 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1450 ,$(UBOOT_BIN)) FORCE
1451 $(call if_changed,mkimage)
1454 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1455 MKIMAGEFLAGS_u-boot.itb =
1457 MKIMAGEFLAGS_u-boot.itb = -E
1461 u-boot.itb: u-boot-nodtb.bin \
1462 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1464 $(call if_changed,mkfitimage)
1468 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1469 $(call if_changed,mkimage)
1471 u-boot.sha1: u-boot.bin
1472 tools/ubsha1 u-boot.bin
1475 $(OBJDUMP) -d $< > $@
1477 ifneq ($(CONFIG_SPL_PAYLOAD),)
1478 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1480 SPL_PAYLOAD := u-boot.bin
1483 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1485 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1486 --pad-to=$(CONFIG_SPL_PAD_TO)
1487 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1488 $(call if_changed,pad_cat)
1490 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
1493 ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy)
1494 MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd
1495 tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE
1496 $(call if_changed,mkimage)
1497 idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE
1498 $(call if_changed,cat)
1500 MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd
1501 idbloader.img: spl/u-boot-spl.bin FORCE
1502 $(call if_changed,mkimage)
1505 ifeq ($(CONFIG_ARM64),y)
1506 OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \
1507 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1508 u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE
1509 $(call if_changed,pad_cat)
1510 endif # CONFIG_ARM64
1512 endif # CONFIG_ARCH_ROCKCHIP
1514 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1515 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1517 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1518 $(call if_changed,mkimage)
1520 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1522 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1523 $(call if_changed,objcopy)
1525 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1527 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1528 $(call if_changed,objcopy)
1530 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1531 $(call if_changed,cat)
1535 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1536 --pad-to=$(CONFIG_TPL_PAD_TO)
1537 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1538 $(call if_changed,pad_cat)
1540 SPL: spl/u-boot-spl.bin FORCE
1541 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1543 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1544 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1545 u-boot.cnt: u-boot.bin FORCE
1546 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1548 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1549 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1551 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1552 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1556 u-boot.uim: u-boot.bin FORCE
1557 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1559 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE
1560 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1562 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1564 u-boot.ubl: u-boot-with-spl.bin FORCE
1565 $(call if_changed,mkimage)
1567 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1568 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1569 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1570 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1571 $(call if_changed,mkimage)
1573 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1574 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1575 $(call if_changed,pad_cat)
1577 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1578 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1579 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1580 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1582 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1583 # Both images are created using mkimage (crc etc), so that the ROM
1584 # bootloader can check its integrity. Padding needs to be done to the
1585 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1586 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1587 # The resulting image containing both U-Boot images is called u-boot.spr
1588 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1589 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1590 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1591 $(call if_changed,mkimage)
1593 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1595 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1596 $(call if_changed,pad_cat)
1598 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1599 quiet_cmd_gensplx4 = GENSPLX4 $@
1600 cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \
1601 --pad-to=$(CONFIG_SPL_PAD_TO) \
1602 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \
1603 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1604 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; }
1605 spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE
1606 $(call if_changed,gensplx4)
1608 quiet_cmd_socboot = SOCBOOT $@
1609 cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1610 u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE
1611 $(call if_changed,socboot)
1613 quiet_cmd_gensplpadx4 = GENSPLPADX4 $@
1614 cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1615 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1616 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1617 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1618 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \
1619 { rm -f $@ spl/u-boot-spl.pad; false; }
1620 u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE
1621 $(call if_changed,gensplpadx4)
1623 quiet_cmd_socnandboot = SOCNANDBOOT $@
1624 cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1625 u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE
1626 $(call if_changed,socnandboot)
1630 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1631 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1632 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1633 $(call if_changed,binman)
1635 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1636 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1637 u-boot-br.bin: u-boot FORCE
1638 $(call if_changed,objcopy)
1642 quiet_cmd_ldr = LD $@
1643 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1644 $(filter-out FORCE,$^) -o $@
1647 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1648 u-boot-x86-start16.bin: u-boot FORCE
1649 $(call if_changed,objcopy)
1651 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1652 u-boot-x86-reset16.bin: u-boot FORCE
1653 $(call if_changed,objcopy)
1657 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1658 u-boot-app.efi: u-boot FORCE
1659 $(call if_changed,zobjcopy)
1661 u-boot.bin.o: u-boot.bin FORCE
1662 $(call if_changed,efipayload)
1664 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1665 $(call if_changed_dep,cpp_lds)
1667 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1668 quiet_cmd_u-boot_payload ?= LD $@
1669 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1670 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1671 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1672 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1674 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1675 $(call if_changed,u-boot_payload)
1677 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1678 u-boot-payload.efi: u-boot-payload FORCE
1679 $(call if_changed,zobjcopy)
1681 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1682 $(call if_changed,cat)
1684 #Add a target to create boot binary having SPL binary in PBI format
1685 #concatenated with u-boot binary. It is need by PowerPC SoC having
1686 #internal SRAM <= 512KB.
1687 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1688 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1689 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1691 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1692 $(call if_changed,mkimage)
1695 UBOOT_BINLOAD := u-boot.img
1697 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1698 UBOOT_BINLOAD := u-boot-with-dtb.bin
1700 UBOOT_BINLOAD := u-boot.bin
1704 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1707 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1708 $(call if_changed,pad_cat)
1710 # PPC4xx needs the SPL at the end of the image, since the reset vector
1711 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1712 # and need to introduce a new build target with the full blown U-Boot
1713 # at the start padded up to the start of the SPL image. And then concat
1714 # the SPL image to the end.
1716 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1717 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1718 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1719 $(call if_changed,pad_cat)
1721 quiet_cmd_u-boot-elf ?= LD $@
1722 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1723 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1724 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1725 u-boot.elf: u-boot.bin u-boot-elf.lds
1726 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1727 $(call if_changed,u-boot-elf)
1729 u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
1730 $(call if_changed_dep,cpp_lds)
1732 # MediaTek's ARM-based u-boot needs a header to contains its load address
1733 # which is parsed by the BootROM.
1734 # If the SPL build is enabled, the header will be added to the spl binary,
1735 # and the spl binary and the u-boot.img will be combined into one file.
1736 # Otherwise the header will be added to the u-boot.bin directly.
1738 ifeq ($(CONFIG_SPL),y)
1739 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1741 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1742 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1743 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1745 u-boot-mtk.bin: u-boot.bin FORCE
1746 $(call if_changed,mkimage)
1749 quiet_cmd_endian_swap = SWAP $@
1750 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@
1752 u-boot-swap.bin: u-boot.bin FORCE
1753 $(call if_changed,endian_swap)
1755 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1757 # Rule to link u-boot
1758 # May be overridden by arch/$(ARCH)/config.mk
1759 quiet_cmd_u-boot__ ?= LD $@
1760 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1761 -T u-boot.lds $(u-boot-init) \
1762 --start-group $(u-boot-main) --end-group \
1763 $(PLATFORM_LIBS) -Map u-boot.map; \
1764 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1766 quiet_cmd_smap = GEN common/system_map.o
1768 smap=`$(call SYSTEM_MAP,u-boot) | \
1769 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1770 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1771 -c $(srctree)/common/system_map.c -o common/system_map.o
1773 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1774 +$(call if_changed,u-boot__)
1775 ifeq ($(CONFIG_KALLSYMS),y)
1777 $(call cmd,u-boot__) common/system_map.o
1780 ifeq ($(CONFIG_RISCV),y)
1781 @tools/prelink-riscv $@ 0
1784 quiet_cmd_sym ?= SYM $@
1785 cmd_sym ?= $(OBJDUMP) -t $< > $@
1786 u-boot.sym: u-boot FORCE
1787 $(call if_changed,sym)
1789 # The actual objects are generated when descending,
1790 # make sure no implicit rule kicks in
1791 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1793 # Handle descending into subdirectories listed in $(u-boot-dirs)
1794 # Preset locale variables to speed up the build process. Limit locale
1795 # tweaks to this spot to avoid wrong language settings when running
1796 # make menuconfig etc.
1797 # Error messages still appears in the original language
1799 PHONY += $(u-boot-dirs)
1800 $(u-boot-dirs): prepare scripts
1801 $(Q)$(MAKE) $(build)=$@
1804 # The "tools" are needed early
1805 $(filter-out tools, $(u-boot-dirs)): tools
1806 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1807 # is "yes"), so compile examples after U-Boot is compiled.
1808 examples: $(filter-out examples, $(u-boot-dirs))
1810 define filechk_uboot.release
1811 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1814 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1815 include/config/uboot.release: include/config/auto.conf FORCE
1816 $(call filechk,uboot.release)
1819 # Things we need to do before we recursively start building the kernel
1820 # or the modules are listed in "prepare".
1821 # A multi level approach is used. prepareN is processed before prepareN-1.
1822 # archprepare is used in arch Makefiles and when processed asm symlink,
1823 # version.h and scripts_basic is processed / created.
1825 # Listed in dependency order
1826 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1828 # prepare3 is used to check if we are building in a separate output directory,
1830 # 1) Check that make has not been executed in the kernel src $(srctree)
1831 prepare3: include/config/uboot.release
1832 ifneq ($(KBUILD_SRC),)
1833 @$(kecho) ' Using $(srctree) as source for U-Boot'
1834 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1835 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1836 echo >&2 " in the '$(srctree)' directory.";\
1841 # prepare2 creates a makefile if using a separate output directory
1842 prepare2: prepare3 outputmakefile cfg
1844 prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) \
1845 include/config/auto.conf
1846 ifeq ($(wildcard $(LDSCRIPT)),)
1847 @echo >&2 " Could not find linker script."
1851 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1852 prepare1: $(defaultenv_h)
1855 archprepare: prepare1 scripts_basic
1857 prepare0: archprepare FORCE
1858 $(Q)$(MAKE) $(build)=.
1860 # All the preparing..
1863 # Generate some files
1864 # ---------------------------------------------------------------------------
1866 # Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers
1867 define filechk_version.h
1868 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1869 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1870 echo \#define U_BOOT_VERSION_NUM $(VERSION); \
1871 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \
1872 sed -e "s/^0*//"); \
1873 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1874 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1877 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1878 # The BSD date on the other hand behaves different and would produce errors
1879 # with the misused '-d' switch. Respect that and search a working date with
1880 # well known pre- and suffixes for the GNU variant of date.
1881 define filechk_timestamp.h
1882 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1883 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1885 for date in gdate date.gnu date; do \
1886 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1888 if test -n "$${DATE}"; then \
1889 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1890 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1891 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1892 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1893 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1894 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \
1899 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1900 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1901 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1902 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1903 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1904 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \
1908 define filechk_defaultenv.h
1912 sed -e 's/\\\x0\s*//g' | \
1913 xxd -i ; echo ", 0x00" ; )
1917 (if test -n "$${DEVICE_TREE}"; then \
1918 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
1920 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
1924 $(version_h): include/config/uboot.release FORCE
1925 $(call filechk,version.h)
1927 $(timestamp_h): $(srctree)/Makefile FORCE
1928 $(call filechk,timestamp.h)
1930 $(dt_h): $(srctree)/Makefile FORCE
1931 $(call filechk,dt.h)
1933 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1934 $(call filechk,defaultenv.h)
1936 # ---------------------------------------------------------------------------
1937 quiet_cmd_cpp_lds = LDS $@
1938 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1939 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1941 u-boot.lds: $(LDSCRIPT) prepare FORCE
1942 $(call if_changed_dep,cpp_lds)
1944 spl/u-boot-spl.bin: spl/u-boot-spl
1948 spl/u-boot-spl-dtb.bin: spl/u-boot-spl
1951 spl/u-boot-spl-dtb.hex: spl/u-boot-spl
1954 spl/u-boot-spl: tools prepare \
1955 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1956 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1957 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1959 spl/sunxi-spl.bin: spl/u-boot-spl
1962 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1965 spl/u-boot-spl.sfp: spl/u-boot-spl
1968 spl/boot.bin: spl/u-boot-spl
1971 tpl/u-boot-tpl.bin: tools prepare \
1972 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1973 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1976 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1982 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1983 -name '*.[chS]' -print`
1987 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1988 -name '*.[chS]' -print`
1990 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1992 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
1993 grep -xvf - cscope.files > cscope.files.no-symlinks; \
1994 mv cscope.files.no-symlinks cscope.files
1999 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
2002 @$(call SYSTEM_MAP,$<) > $@
2004 #########################################################################
2006 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
2007 # R_AARCH64_RELATIVE (64-bit).
2008 checkarmreloc: u-boot
2009 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
2010 grep R_A | sort -u`"; \
2011 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
2012 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
2013 echo "$< contains unexpected relocations: $$RELOC"; \
2017 tools/version.h: include/version.h
2018 $(Q)mkdir -p $(dir $@)
2019 $(call if_changed,copy)
2021 envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2022 $(Q)$(MAKE) $(build)=tools/env
2024 tools-only: export TOOLS_ONLY=y
2025 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2026 $(Q)$(MAKE) $(build)=tools
2028 tools-all: export HOST_TOOLS_ALL=y
2029 tools-all: envtools tools ;
2031 cross_tools: export CROSS_BUILD_TOOLS=y
2032 cross_tools: tools ;
2036 git log --no-merges U-Boot-1_1_5.. | \
2037 unexpand -a | sed -e 's/\s\s*$$//' > $@
2039 #########################################################################
2042 # Cleaning is done on three levels.
2043 # make clean Delete most generated files
2044 # Leave enough to build external modules
2045 # make mrproper Delete the current configuration, and all generated files
2046 # make distclean Remove editor backup files, patch leftover files and the like
2048 # Directories & files removed with 'make clean'
2049 CLEAN_DIRS += $(MODVERDIR) \
2050 $(foreach d, spl tpl, $(patsubst %,$d/%, \
2051 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
2053 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \
2054 boot* u-boot* MLO* SPL System.map fit-dtb.blob* \
2055 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
2056 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
2057 idbloader.img flash.bin flash.log defconfig
2059 # Directories & files removed with 'make mrproper'
2060 MRPROPER_DIRS += include/config include/generated spl tpl \
2061 .tmp_objdiff doc/output
2062 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
2063 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
2064 drivers/video/fonts/*.S
2066 # clean - Delete most, but leave enough to build external modules
2068 clean: rm-dirs := $(CLEAN_DIRS)
2069 clean: rm-files := $(CLEAN_FILES)
2071 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
2073 clean-dirs := $(addprefix _clean_, $(clean-dirs))
2075 PHONY += $(clean-dirs) clean archclean
2077 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
2079 clean: $(clean-dirs)
2082 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
2083 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
2084 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
2085 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
2086 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
2087 -o -name '*.asn1.[ch]' \
2088 -o -name '*.symtypes' -o -name 'modules.order' \
2089 -o -name modules.builtin -o -name '.tmp_*.o.*' \
2090 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
2091 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
2092 -type f -print | xargs rm -f
2094 # mrproper - Delete all generated files, including .config
2096 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
2097 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
2098 mrproper-dirs := $(addprefix _mrproper_,scripts)
2100 PHONY += $(mrproper-dirs) mrproper archmrproper
2102 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
2104 mrproper: clean $(mrproper-dirs)
2107 @rm -f arch/*/include/asm/arch
2114 @find $(srctree) $(RCS_FIND_IGNORE) \
2115 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
2116 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
2117 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
2118 -o -name '*.pyc' \) \
2119 -type f -print | xargs rm -f
2120 @rm -f boards.cfg CHANGELOG
2123 F=`basename $(srctree)` ; cd .. ; \
2124 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2127 @echo 'Cleaning targets:'
2128 @echo ' clean - Remove most generated files but keep the config'
2129 @echo ' mrproper - Remove all generated files + config + various backup files'
2130 @echo ' distclean - mrproper + remove editor backup and patch files'
2132 @echo 'Configuration targets:'
2133 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2135 @echo 'Test targets:'
2137 @echo ' check - Run all automated tests that use sandbox'
2138 @echo ' qcheck - Run quick automated tests that use sandbox'
2139 @echo ' tcheck - Run quick automated tests on tools'
2141 @echo 'Other generic targets:'
2142 @echo ' all - Build all necessary images depending on configuration'
2143 @echo ' tests - Build U-Boot for sandbox and run tests'
2144 @echo '* u-boot - Build the bare u-boot'
2145 @echo ' dir/ - Build all files in dir and below'
2146 @echo ' dir/file.[oisS] - Build specified target only'
2147 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
2148 @echo ' (requires a recent binutils and recent build (System.map))'
2149 @echo ' tags/ctags - Generate ctags file for editors'
2150 @echo ' etags - Generate etags file for editors'
2151 @echo ' cscope - Generate cscope index'
2152 @echo ' ubootrelease - Output the release version string (use with make -s)'
2153 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
2154 @echo " cfg - Don't build, just create the .cfg files"
2155 @echo " envtools - Build only the target-side environment tools"
2157 @echo 'Static analysers'
2158 @echo ' checkstack - Generate a list of stack hogs'
2159 @echo ' coccicheck - Execute static code analysis with Coccinelle'
2161 @echo 'Documentation targets:'
2162 @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2164 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2165 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
2166 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
2167 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
2168 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
2169 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2170 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
2171 @echo ' 1: warnings which may be relevant and do not occur too often'
2172 @echo ' 2: warnings which occur quite often but may still be relevant'
2173 @echo ' 3: more obscure warnings, can most likely be ignored'
2174 @echo ' Multiple levels can be combined with W=12 or W=123'
2176 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
2177 @echo 'For further info see the ./README file'
2183 $(srctree)/test/run quick
2186 $(srctree)/test/run tools
2188 # Documentation targets
2189 # ---------------------------------------------------------------------------
2190 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2191 linkcheckdocs dochelp refcheckdocs
2192 PHONY += $(DOC_TARGETS)
2193 $(DOC_TARGETS): scripts_basic FORCE
2194 $(Q)$(MAKE) $(build)=doc $@
2196 endif #ifeq ($(config-targets),1)
2197 endif #ifeq ($(mixed-targets),1)
2199 PHONY += checkstack ubootrelease ubootversion
2202 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2203 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2206 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
2209 @echo $(UBOOTVERSION)
2212 # ---------------------------------------------------------------------------
2213 # Single targets are compatible with:
2214 # - build with mixed source and output
2215 # - build with separate output dir 'make O=...'
2216 # - external modules
2218 # target-dir => where to store outputfile
2219 # build-dir => directory in kernel source tree to use
2221 ifeq ($(KBUILD_EXTMOD),)
2222 build-dir = $(patsubst %/,%,$(dir $@))
2223 target-dir = $(dir $@)
2225 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2226 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2227 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2230 %.s: %.c prepare scripts FORCE
2231 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2232 %.i: %.c prepare scripts FORCE
2233 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2234 %.o: %.c prepare scripts FORCE
2235 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2236 %.lst: %.c prepare scripts FORCE
2237 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2238 %.s: %.S prepare scripts FORCE
2239 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2240 %.o: %.S prepare scripts FORCE
2241 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2242 %.symtypes: %.c prepare scripts FORCE
2243 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2246 /: prepare scripts FORCE
2248 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2249 $(build)=$(build-dir)
2250 %/: prepare scripts FORCE
2252 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2253 $(build)=$(build-dir)
2254 %.ko: prepare scripts FORCE
2256 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2257 $(build)=$(build-dir) $(@:.ko=.o)
2258 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2260 quiet_cmd_genenv = GENENV $@
2261 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2262 sed --in-place -e 's/\x00/\x0A/g' $@
2264 u-boot-initial-env: u-boot.bin
2265 $(call if_changed,genenv)
2267 # Consistency checks
2268 # ---------------------------------------------------------------------------
2273 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2275 # FIXME Should go into a make.lib or something
2276 # ===========================================================================
2278 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
2279 cmd_rmdirs = rm -rf $(rm-dirs)
2281 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
2282 cmd_rmfiles = rm -f $(rm-files)
2284 # read all saved command lines
2286 cmd_files := $(wildcard .*.cmd $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
2288 ifneq ($(cmd_files),)
2289 $(cmd_files): ; # Do not try to update included dependency files
2290 include $(cmd_files)
2293 endif # skip-makefile
2298 # Declare the contents of the PHONY variable as phony. We keep that
2299 # information in a variable so we can use it in if_changed and friends.