2 # SPDX-License-Identifier: GPL-2.0+
12 # To see a list of typical targets execute "make help"
13 # More info can be located in ./README
14 # Comments in this file are targeted only to the developer, do not
15 # expect to learn how to build the kernel reading this file.
17 # o Do not use make's built-in rules and variables
18 # (this increases performance and avoids hard-to-debug behaviour);
19 # o Look for make include files relative to root of kernel src
20 MAKEFLAGS += -rR --include-dir=$(CURDIR)
22 # Avoid funny character set dependencies
26 export LC_COLLATE LC_NUMERIC
28 # Avoid interference with shell env settings
31 # We are using a recursive build, so we need to do a little thinking
32 # to get the ordering right.
34 # Most importantly: sub-Makefiles should only ever modify files in
35 # their own directory. If in some directory we have a dependency on
36 # a file in another dir (which doesn't happen often, but it's often
37 # unavoidable when linking the built-in.o targets which finally
38 # turn into vmlinux), we will call a sub make in that other dir, and
39 # after that we are sure that everything which is in that other dir
42 # The only cases where we need to modify files which have global
43 # effects are thus separated out and done before the recursive
44 # descending is started. They are now explicitly listed as the
48 # ---------------------------------------------------------------------------
50 # Normally, we echo the whole command before executing it. By making
51 # that echo $($(quiet)$(cmd)), we now have the possibility to set
52 # $(quiet) to choose other forms of output instead, e.g.
54 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
55 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
57 # If $(quiet) is empty, the whole command will be printed.
58 # If it is set to "quiet_", only the short version will be printed.
59 # If it is set to "silent_", nothing will be printed at all, since
60 # the variable $(silent_cmd_cc_o_c) doesn't exist.
62 # A simple variant is to prefix commands with $(Q) - that's useful
63 # for commands that shall be hidden in non-verbose mode.
67 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
68 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
70 # To put more focus on warnings, be less verbose as default
71 # Use 'make V=1' to see the full commands
73 ifeq ("$(origin V)", "command line")
80 ifeq ($(KBUILD_VERBOSE),1)
88 # If the user is running make -s (silent mode), suppress echoing of
91 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
92 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
96 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
101 export quiet Q KBUILD_VERBOSE
103 # kbuild supports saving output files in a separate directory.
104 # To locate output files in a separate directory two syntaxes are supported.
105 # In both cases the working directory must be the root of the kernel src.
107 # Use "make O=dir/to/store/output/files/"
109 # 2) Set KBUILD_OUTPUT
110 # Set the environment variable KBUILD_OUTPUT to point to the directory
111 # where the output files shall be placed.
112 # export KBUILD_OUTPUT=dir/to/store/output/files/
115 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
118 # KBUILD_SRC is set on invocation of make in OBJ directory
119 # KBUILD_SRC is not intended to be used by the regular user (for now)
120 ifeq ($(KBUILD_SRC),)
122 # OK, Make called in directory where kernel src resides
123 # Do we want to locate output files in a separate directory?
124 ifeq ("$(origin O)", "command line")
125 KBUILD_OUTPUT := $(O)
128 # That's our default target when none is given on the command line
132 # Cancel implicit rules on top Makefile
133 $(CURDIR)/Makefile Makefile: ;
135 ifneq ($(KBUILD_OUTPUT),)
136 # Invoke a second make in the output directory, passing relevant variables
137 # check that the output directory actually exists
138 saved-output := $(KBUILD_OUTPUT)
139 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
141 $(if $(KBUILD_OUTPUT),, \
142 $(error failed to create output directory "$(saved-output)"))
144 PHONY += $(MAKECMDGOALS) sub-make
146 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
150 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
151 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
153 # Leave processing to above invocation of make
155 endif # ifneq ($(KBUILD_OUTPUT),)
156 endif # ifeq ($(KBUILD_SRC),)
158 # We process the rest of the Makefile if this is the final invocation of make
159 ifeq ($(skip-makefile),)
161 # Do not print "Entering directory ...",
162 # but we want to display it when entering to the output directory
163 # so that IDEs/editors are able to understand relative filenames.
164 MAKEFLAGS += --no-print-directory
166 # Call a source code checker (by default, "sparse") as part of the
169 # Use 'make C=1' to enable checking of only re-compiled files.
170 # Use 'make C=2' to enable checking of *all* source files, regardless
171 # of whether they are re-compiled or not.
173 # See the file "Documentation/sparse.txt" for more details, including
174 # where to get the "sparse" utility.
176 ifeq ("$(origin C)", "command line")
177 KBUILD_CHECKSRC = $(C)
179 ifndef KBUILD_CHECKSRC
183 # Use make M=dir to specify directory of external module to build
184 # Old syntax make ... SUBDIRS=$PWD is still supported
185 # Setting the environment variable KBUILD_EXTMOD take precedence
187 KBUILD_EXTMOD ?= $(SUBDIRS)
190 ifeq ("$(origin M)", "command line")
191 KBUILD_EXTMOD := $(M)
194 # If building an external module we do not care about the all: rule
195 # but instead _all depend on modules
197 ifeq ($(KBUILD_EXTMOD),)
203 ifeq ($(KBUILD_SRC),)
204 # building in the source tree
207 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
208 # building in a subdirectory of the source tree
211 srctree := $(KBUILD_SRC)
218 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
220 export srctree objtree VPATH
222 # Make sure CDPATH settings don't interfere
225 #########################################################################
227 HOSTARCH := $(shell uname -m | \
229 -e s/sun4u/sparc64/ \
232 -e s/ppc64/powerpc/ \
234 -e s/macppc/powerpc/\
237 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
238 sed -e 's/\(cygwin\).*/cygwin/')
240 export HOSTARCH HOSTOS
242 #########################################################################
244 # set default to nothing for native builds
245 ifeq ($(HOSTARCH),$(ARCH))
249 KCONFIG_CONFIG ?= .config
250 export KCONFIG_CONFIG
252 # SHELL used by kbuild
253 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
254 else if [ -x /bin/bash ]; then echo /bin/bash; \
255 else echo sh; fi ; fi)
259 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
260 $(if $(CONFIG_TOOLS_DEBUG),-g)
263 ifeq ($(HOSTOS),cygwin)
267 # Mac OS X / Darwin's C preprocessor is Apple specific. It
268 # generates numerous errors and warnings. We want to bypass it
269 # and use GNU C's cpp. To do this we pass the -traditional-cpp
270 # option to the compiler. Note that the -traditional-cpp flag
271 # DOES NOT have the same semantics as GNU C's flag, all it does
272 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
274 # Apple's linker is similar, thanks to the new 2 stage linking
275 # multiple symbol definitions are treated as errors, hence the
276 # -multiply_defined suppress option to turn off this error.
278 ifeq ($(HOSTOS),darwin)
279 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
280 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
281 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
283 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
284 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
286 # Snow Leopards build environment has no longer restrictions as described above
287 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
288 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
289 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
291 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
292 # in some host tools which is a problem then ... so disable ASLR for these
294 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
297 # Decide whether to build built-in, modular, or both.
298 # Normally, just do built-in.
303 # If we have only "make modules", don't compile built-in objects.
304 # When we're building modules with modversions, we need to consider
305 # the built-in objects during the descend as well, in order to
306 # make sure the checksums are up to date before we record them.
308 ifeq ($(MAKECMDGOALS),modules)
309 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
312 # If we have "make <whatever> modules", compile modules
313 # in addition to whatever we do anyway.
314 # Just "make" or "make all" shall build modules as well
316 # U-Boot does not need modules
317 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
318 # KBUILD_MODULES := 1
321 #ifeq ($(MAKECMDGOALS),)
322 # KBUILD_MODULES := 1
325 export KBUILD_MODULES KBUILD_BUILTIN
326 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
328 # We need some generic definitions (do not try to remake the file).
329 scripts/Kbuild.include: ;
330 include scripts/Kbuild.include
332 # Make variables (CC, etc...)
334 AS = $(CROSS_COMPILE)as
336 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
337 LD = $(CROSS_COMPILE)ld.bfd
339 LD = $(CROSS_COMPILE)ld
341 CC = $(CROSS_COMPILE)gcc
343 AR = $(CROSS_COMPILE)ar
344 NM = $(CROSS_COMPILE)nm
345 LDR = $(CROSS_COMPILE)ldr
346 STRIP = $(CROSS_COMPILE)strip
347 OBJCOPY = $(CROSS_COMPILE)objcopy
348 OBJDUMP = $(CROSS_COMPILE)objdump
355 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
356 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
358 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
360 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
361 -Wno-format-security \
362 -fno-builtin -ffreestanding
363 KBUILD_AFLAGS := -D__ASSEMBLY__
365 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
366 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
367 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
369 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
370 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
371 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
372 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
373 export MAKE AWK PERL PYTHON
374 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
376 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
377 export KBUILD_CFLAGS KBUILD_AFLAGS
379 # When compiling out-of-tree modules, put MODVERDIR in the module
380 # tree rather than in the kernel tree. The kernel tree might
382 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
384 # Files to ignore in find ... statements
386 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
387 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
389 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
390 --exclude CVS --exclude .pc --exclude .hg --exclude .git
392 # ===========================================================================
393 # Rules shared between *config targets and build targets
395 # Basic helpers built in scripts/
396 PHONY += scripts_basic
398 $(Q)$(MAKE) $(build)=scripts/basic
399 $(Q)rm -f .tmp_quiet_recordmcount
401 # To avoid any implicit rule to kick in, define an empty command.
402 scripts/basic/%: scripts_basic ;
404 PHONY += outputmakefile
405 # outputmakefile generates a Makefile in the output directory, if using a
406 # separate output directory. This allows convenient use of make in the
409 ifneq ($(KBUILD_SRC),)
410 $(Q)ln -fsn $(srctree) source
411 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
412 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
415 # To make sure we do not include .config for any of the *config targets
416 # catch them early, and hand them over to scripts/kconfig/Makefile
417 # It is allowed to specify more targets when calling make, including
418 # mixing *config targets and build targets.
419 # For example 'make oldconfig all'.
420 # Detect when mixed targets is specified, and make a second invocation
421 # of make so .config is not included in this case either (for *config).
423 version_h := include/generated/version_autogenerated.h
424 timestamp_h := include/generated/timestamp_autogenerated.h
426 no-dot-config-targets := clean clobber mrproper distclean \
427 help %docs check% coccicheck \
428 ubootversion backup tests
434 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
435 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
440 ifeq ($(KBUILD_EXTMOD),)
441 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
443 ifneq ($(words $(MAKECMDGOALS)),1)
449 ifeq ($(mixed-targets),1)
450 # ===========================================================================
451 # We're called with mixed targets (*config and build targets).
452 # Handle them one by one.
454 PHONY += $(MAKECMDGOALS) __build_one_by_one
456 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
461 for i in $(MAKECMDGOALS); do \
462 $(MAKE) -f $(srctree)/Makefile $$i; \
466 ifeq ($(config-targets),1)
467 # ===========================================================================
468 # *config targets only - make sure prerequisites are updated, and descend
469 # in scripts/kconfig to make the *config target
471 KBUILD_DEFCONFIG := sandbox_defconfig
472 export KBUILD_DEFCONFIG KBUILD_KCONFIG
474 config: scripts_basic outputmakefile FORCE
475 $(Q)$(MAKE) $(build)=scripts/kconfig $@
477 %config: scripts_basic outputmakefile FORCE
478 $(Q)$(MAKE) $(build)=scripts/kconfig $@
481 # ===========================================================================
482 # Build targets only - this includes vmlinux, arch specific targets, clean
483 # targets and others. In general all targets except *config targets.
485 # Additional helpers built in scripts/
486 # Carefully list dependencies so we do not try to build scripts twice
489 scripts: scripts_basic include/config/auto.conf
490 $(Q)$(MAKE) $(build)=$(@)
492 ifeq ($(dot-config),1)
494 -include include/config/auto.conf
496 # Read in dependencies to all Kconfig* files, make sure to run
497 # oldconfig if changes are detected.
498 -include include/config/auto.conf.cmd
500 # To avoid any implicit rule to kick in, define an empty command
501 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
503 # If .config is newer than include/config/auto.conf, someone tinkered
504 # with it and forgot to run make oldconfig.
505 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
506 # we execute the config step to be sure to catch updated Kconfig files
507 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
508 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
509 @# If the following part fails, include/config/auto.conf should be
510 @# deleted so "make silentoldconfig" will be re-run on the next build.
511 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
512 { rm -f include/config/auto.conf; false; }
513 @# include/config.h has been updated after "make silentoldconfig".
514 @# We need to touch include/config/auto.conf so it gets newer
515 @# than include/config.h.
516 @# Otherwise, 'make silentoldconfig' would be invoked twice.
517 $(Q)touch include/config/auto.conf
519 -include include/autoconf.mk
520 -include include/autoconf.mk.dep
522 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
523 # is up-to-date. When we switch to a different board configuration, old CONFIG
524 # macros are still remaining in include/config/auto.conf. Without the following
525 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
526 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
527 ifneq ($(wildcard include/config/auto.conf),)
528 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
529 include/config/auto.conf)
530 ifeq ($(autoconf_is_old),)
532 include arch/$(ARCH)/Makefile
537 # These are set by the arch-specific config.mk. Make sure they are exported
538 # so they can be used when building an EFI application.
539 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
540 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
541 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
542 export CFLAGS_EFI # Compiler flags to add when building EFI app
543 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
544 export EFI_TARGET # binutils target if EFI is natively supported
546 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
547 # that (or fail if absent). Otherwise, search for a linker script in a
551 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
552 ifdef CONFIG_SYS_LDSCRIPT
553 # need to strip off double quotes
554 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
558 # If there is no specified link script, we look in a number of places for it
560 ifeq ($(wildcard $(LDSCRIPT)),)
561 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
563 ifeq ($(wildcard $(LDSCRIPT)),)
564 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
566 ifeq ($(wildcard $(LDSCRIPT)),)
567 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
572 # Dummy target needed, because used as prerequisite
573 include/config/auto.conf: ;
574 endif # $(dot-config)
577 # Xtensa linker script cannot be preprocessed with -ansi because of
578 # preprocessor operations on strings that don't make C identifiers.
580 ifeq ($(CONFIG_XTENSA),)
584 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
590 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
591 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
594 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
595 # option to the assembler.
598 # Report stack usage if supported
599 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
600 KBUILD_CFLAGS += -fstack-usage
603 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
605 # turn jbsr into jsr for m68k
607 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
608 KBUILD_AFLAGS += -Wa,-gstabs,-S
612 # Prohibit date/time macros, which would make the build non-deterministic
613 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
615 include scripts/Makefile.extrawarn
617 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
618 KBUILD_CPPFLAGS += $(KCPPFLAGS)
619 KBUILD_AFLAGS += $(KAFLAGS)
620 KBUILD_CFLAGS += $(KCFLAGS)
622 # Use UBOOTINCLUDE when you must reference the include/ directory.
623 # Needed to be compatible with the O= option
626 $(if $(KBUILD_SRC), -I$(srctree)/include) \
627 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
628 $(if $(CONFIG_HAS_THUMB2),, \
629 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
630 -I$(srctree)/arch/$(ARCH)/include \
631 -include $(srctree)/include/linux/kconfig.h
633 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
634 CHECKFLAGS += $(NOSTDINC_FLAGS)
637 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
639 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
641 #########################################################################
642 # U-Boot objects....order is important (i.e. start must be first)
644 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
647 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
648 libs-$(CONFIG_OF_EMBED) += dts/
653 libs-y += drivers/dma/
654 libs-y += drivers/gpio/
655 libs-y += drivers/i2c/
656 libs-y += drivers/mtd/
657 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
658 libs-y += drivers/mtd/onenand/
659 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
660 libs-y += drivers/mtd/spi/
661 libs-y += drivers/net/
662 libs-y += drivers/net/phy/
663 libs-y += drivers/pci/
664 libs-y += drivers/power/ \
665 drivers/power/domain/ \
666 drivers/power/fuel_gauge/ \
668 drivers/power/pmic/ \
669 drivers/power/battery/ \
670 drivers/power/regulator/
671 libs-y += drivers/spi/
672 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
673 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
674 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
675 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
676 libs-y += drivers/serial/
677 libs-y += drivers/usb/dwc3/
678 libs-y += drivers/usb/common/
679 libs-y += drivers/usb/emul/
680 libs-y += drivers/usb/eth/
681 libs-y += drivers/usb/gadget/
682 libs-y += drivers/usb/gadget/udc/
683 libs-y += drivers/usb/host/
684 libs-y += drivers/usb/musb/
685 libs-y += drivers/usb/musb-new/
686 libs-y += drivers/usb/phy/
687 libs-y += drivers/usb/ulpi/
690 libs-$(CONFIG_API) += api/
691 libs-$(CONFIG_HAS_POST) += post/
694 libs-$(CONFIG_UT_ENV) += test/env/
695 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
697 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
699 libs-y := $(sort $(libs-y))
701 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
703 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
705 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
707 u-boot-init := $(head-y)
708 u-boot-main := $(libs-y)
712 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
713 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
715 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
717 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
719 export PLATFORM_LIBGCC
721 # Special flags for CPP when processing the linker script.
722 # Pass the version down so we can handle backwards compatibility
725 -include $(srctree)/include/u-boot/u-boot.lds.h \
727 $(shell $(LD) --version | \
728 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
730 #########################################################################
731 #########################################################################
733 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
735 @actual=`wc -c $@ | awk '{print $$1}'`; \
736 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
737 if test $$actual -gt $$limit; then \
738 echo "$@ exceeds file size limit:" >&2 ; \
739 echo " limit: $$limit bytes" >&2 ; \
740 echo " actual: $$actual bytes" >&2 ; \
741 echo " excess: $$((actual - limit)) bytes" >&2; \
748 # Statically apply RELA-style relocations (currently arm64 only)
749 # This is useful for arm64 where static relocation needs to be performed on
750 # the raw binary, but certain simulators only accept an ELF file (but don't
751 # do the relocation).
752 ifneq ($(CONFIG_STATIC_RELA),)
753 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
755 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
756 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
757 tools/relocate-rela $(2) $(3) $$start $$end
762 # Always append ALL so that arch config.mk's can add custom ones
763 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
765 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
766 ifeq ($(CONFIG_SPL_FSL_PBL),y)
767 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
769 ifneq ($(CONFIG_SECURE_BOOT), y)
770 # For Secure Boot The Image needs to be signed and Header must also
771 # be included. So The image has to be built explicitly
772 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
775 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
776 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
777 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
779 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
781 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
782 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
783 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
784 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
786 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
787 ifneq ($(CONFIG_SPL_TARGET),)
788 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
790 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
791 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
792 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
794 ifneq ($(BUILD_ROM),)
795 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
798 # enable combined SPL/u-boot/dtb rules for tegra
799 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
800 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
801 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
804 # Add optional build target if defined in board/cpu/soc headers
805 ifneq ($(CONFIG_BUILD_TARGET),)
806 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
809 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
811 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
812 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
814 ifneq ($(CONFIG_SYS_TEXT_BASE),)
815 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
818 # Normally we fill empty space with 0xff
819 quiet_cmd_objcopy = OBJCOPY $@
820 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
821 $(OBJCOPYFLAGS_$(@F)) $< $@
823 # Provide a version which does not do this, for use by EFI
824 quiet_cmd_zobjcopy = OBJCOPY $@
825 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
827 quiet_cmd_efipayload = OBJCOPY $@
828 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
830 MKIMAGEOUTPUT ?= /dev/null
832 quiet_cmd_mkimage = MKIMAGE $@
833 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
834 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
836 quiet_cmd_mkfitimage = MKIMAGE $@
837 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
838 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
840 quiet_cmd_cat = CAT $@
841 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
843 append = cat $(filter-out $< $(PHONY), $^) >> $@
845 quiet_cmd_pad_cat = CAT $@
846 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
850 quiet_cmd_cfgcheck = CFGCHK $2
851 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
852 $(srctree)/scripts/config_whitelist.txt $(srctree)
855 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
856 @echo "===================== WARNING ======================"
857 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
858 @echo "(possibly in a subsequent patch in your series)"
859 @echo "before sending patches to the mailing list."
860 @echo "===================================================="
862 @# Check that this build does not use CONFIG options that we do not
863 @# know about unless they are in Kconfig. All the existing CONFIG
864 @# options are whitelisted, so new ones should not be added.
865 $(call cmd,cfgcheck,u-boot.cfg)
870 dts/dt.dtb: checkdtc u-boot
871 $(Q)$(MAKE) $(build)=dts dtbs
873 quiet_cmd_copy = COPY $@
876 ifeq ($(CONFIG_OF_SEPARATE),y)
877 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
878 $(call if_changed,cat)
880 u-boot.bin: u-boot-dtb.bin FORCE
881 $(call if_changed,copy)
883 u-boot.bin: u-boot-nodtb.bin FORCE
884 $(call if_changed,copy)
888 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
891 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
893 quiet_cmd_copy = COPY $@
896 u-boot.dtb: dts/dt.dtb
899 OBJCOPYFLAGS_u-boot.hex := -O ihex
901 OBJCOPYFLAGS_u-boot.srec := -O srec
903 u-boot.hex u-boot.srec: u-boot FORCE
904 $(call if_changed,objcopy)
906 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
907 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
909 binary_size_check: u-boot-nodtb.bin FORCE
910 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
911 map_size=$(shell cat u-boot.map | \
912 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
915 if [ "" != "$$map_size" ]; then \
916 if test $$map_size -ne $$file_size; then \
917 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
918 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
923 u-boot-nodtb.bin: u-boot FORCE
924 $(call if_changed,objcopy)
925 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
930 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
934 # ---------------------------------------------------------------------------
935 quiet_cmd_binman = BINMAN $@
936 cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
937 -I . -I $(srctree)/board/$(BOARDDIR) $<
939 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
941 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
943 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
944 $(call if_changed,objcopy)
947 # U-Boot entry point, needed for booting of full-blown U-Boot
948 # from the SPL U-Boot version.
950 ifndef CONFIG_SYS_UBOOT_START
951 CONFIG_SYS_UBOOT_START := 0
954 # Create a file containing the configuration options the image was built with
955 quiet_cmd_cpp_cfg = CFG $@
956 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
957 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
959 # Boards with more complex image requirments can provide an .its source file
960 # or a generator script
961 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
962 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
964 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
965 U_BOOT_ITS := u-boot.its
967 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
968 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
972 ifdef CONFIG_SPL_LOAD_FIT
973 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
974 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
975 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
976 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
978 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
979 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
980 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
981 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
982 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
983 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
984 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
985 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
988 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
990 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
991 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
993 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
994 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
995 $(if $(KEYDIR),-k $(KEYDIR))
997 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
998 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1000 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1001 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1002 $(call if_changed,mkimage)
1004 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1005 $(call if_changed,mkfitimage)
1007 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1008 $(call if_changed,mkimage)
1010 u-boot.sha1: u-boot.bin
1011 tools/ubsha1 u-boot.bin
1014 $(OBJDUMP) -d $< > $@
1017 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1019 SPL_PAYLOAD := u-boot.bin
1022 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1023 --pad-to=$(CONFIG_SPL_PAD_TO)
1024 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1025 $(call if_changed,pad_cat)
1027 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1029 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1030 $(call if_changed,mkimage)
1032 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1034 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1035 $(call if_changed,objcopy)
1037 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1039 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1040 $(call if_changed,objcopy)
1042 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1043 $(call if_changed,cat)
1045 CLEAN_FILES += lpc32xx-*
1047 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1048 --pad-to=$(CONFIG_TPL_PAD_TO)
1049 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1050 $(call if_changed,pad_cat)
1052 SPL: spl/u-boot-spl.bin FORCE
1053 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
1055 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1056 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
1058 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1060 u-boot.ubl: u-boot-with-spl.bin FORCE
1061 $(call if_changed,mkimage)
1063 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1064 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1065 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1066 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1067 $(call if_changed,mkimage)
1069 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1070 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1071 $(call if_changed,pad_cat)
1073 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1074 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1075 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1076 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1078 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1079 # Both images are created using mkimage (crc etc), so that the ROM
1080 # bootloader can check its integrity. Padding needs to be done to the
1081 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1082 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1083 # The resulting image containing both U-Boot images is called u-boot.spr
1084 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1085 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1086 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1087 $(call if_changed,mkimage)
1089 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1091 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1092 $(call if_changed,pad_cat)
1094 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1095 quiet_cmd_socboot = SOCBOOT $@
1096 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1097 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1098 u-boot.img > $@ || rm -f $@
1099 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1100 $(call if_changed,socboot)
1103 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1104 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1105 # the middle. This is handled by binman based on an image description in the
1106 # board's device tree.
1107 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1108 rom: u-boot.rom FORCE
1110 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1111 $(call if_changed,copy)
1113 quiet_cmd_ldr = LD $@
1114 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1115 $(filter-out FORCE,$^) -o $@
1117 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1118 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1119 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) checkbinman FORCE
1120 $(call if_changed,binman)
1122 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1123 u-boot-x86-16bit.bin: u-boot FORCE
1124 $(call if_changed,objcopy)
1127 ifneq ($(CONFIG_ARCH_SUNXI),)
1128 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb \
1130 $(call if_changed,binman)
1133 ifneq ($(CONFIG_TEGRA),)
1134 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1135 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1136 $(call if_changed,pad_cat)
1138 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1139 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1140 $(call if_changed,pad_cat)
1142 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1143 $(call if_changed,copy)
1146 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1147 u-boot-app.efi: u-boot FORCE
1148 $(call if_changed,zobjcopy)
1150 u-boot.bin.o: u-boot.bin FORCE
1151 $(call if_changed,efipayload)
1153 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1154 $(call if_changed_dep,cpp_lds)
1156 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1157 quiet_cmd_u-boot_payload ?= LD $@
1158 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1159 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1160 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1161 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1163 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1164 $(call if_changed,u-boot_payload)
1166 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1167 u-boot-payload.efi: u-boot-payload FORCE
1168 $(call if_changed,zobjcopy)
1170 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1171 $(call if_changed,cat)
1173 #Add a target to create boot binary having SPL binary in PBI format
1174 #concatenated with u-boot binary. It is need by PowerPC SoC having
1175 #internal SRAM <= 512KB.
1176 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1177 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1178 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1180 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1181 $(call if_changed,mkimage)
1184 UBOOT_BINLOAD := u-boot.img
1186 UBOOT_BINLOAD := u-boot.bin
1189 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1192 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1193 $(call if_changed,pad_cat)
1195 # PPC4xx needs the SPL at the end of the image, since the reset vector
1196 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1197 # and need to introduce a new build target with the full blown U-Boot
1198 # at the start padded up to the start of the SPL image. And then concat
1199 # the SPL image to the end.
1201 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1202 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1203 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1204 $(call if_changed,pad_cat)
1206 # Create a new ELF from a raw binary file.
1207 ifndef PLATFORM_ELFENTRY
1208 PLATFORM_ELFENTRY = "_start"
1210 quiet_cmd_u-boot-elf ?= LD $@
1211 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1212 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1213 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1214 u-boot.elf: u-boot.bin
1215 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1216 $(call if_changed,u-boot-elf)
1218 # Rule to link u-boot
1219 # May be overridden by arch/$(ARCH)/config.mk
1220 quiet_cmd_u-boot__ ?= LD $@
1221 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1222 -T u-boot.lds $(u-boot-init) \
1223 --start-group $(u-boot-main) --end-group \
1224 $(PLATFORM_LIBS) -Map u-boot.map
1226 quiet_cmd_smap = GEN common/system_map.o
1228 smap=`$(call SYSTEM_MAP,u-boot) | \
1229 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1230 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1231 -c $(srctree)/common/system_map.c -o common/system_map.o
1233 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1234 $(call if_changed,u-boot__)
1235 ifeq ($(CONFIG_KALLSYMS),y)
1237 $(call cmd,u-boot__) common/system_map.o
1240 quiet_cmd_sym ?= SYM $@
1241 cmd_sym ?= $(OBJDUMP) -t $< > $@
1242 u-boot.sym: u-boot FORCE
1243 $(call if_changed,sym)
1245 # The actual objects are generated when descending,
1246 # make sure no implicit rule kicks in
1247 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1249 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1250 # Preset locale variables to speed up the build process. Limit locale
1251 # tweaks to this spot to avoid wrong language settings when running
1252 # make menuconfig etc.
1253 # Error messages still appears in the original language
1255 PHONY += $(u-boot-dirs)
1256 $(u-boot-dirs): prepare scripts
1257 $(Q)$(MAKE) $(build)=$@
1260 # The "tools" are needed early
1261 $(filter-out tools, $(u-boot-dirs)): tools
1262 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1263 # is "yes"), so compile examples after U-Boot is compiled.
1264 examples: $(filter-out examples, $(u-boot-dirs))
1266 define filechk_uboot.release
1267 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1270 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1271 include/config/uboot.release: include/config/auto.conf FORCE
1272 $(call filechk,uboot.release)
1275 # Things we need to do before we recursively start building the kernel
1276 # or the modules are listed in "prepare".
1277 # A multi level approach is used. prepareN is processed before prepareN-1.
1278 # archprepare is used in arch Makefiles and when processed asm symlink,
1279 # version.h and scripts_basic is processed / created.
1281 # Listed in dependency order
1282 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1284 # prepare3 is used to check if we are building in a separate output directory,
1286 # 1) Check that make has not been executed in the kernel src $(srctree)
1287 prepare3: include/config/uboot.release
1288 ifneq ($(KBUILD_SRC),)
1289 @$(kecho) ' Using $(srctree) as source for U-Boot'
1290 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1291 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1292 echo >&2 " in the '$(srctree)' directory.";\
1297 # prepare2 creates a makefile if using a separate output directory
1298 prepare2: prepare3 outputmakefile
1300 prepare1: prepare2 $(version_h) $(timestamp_h) \
1301 include/config/auto.conf
1302 ifeq ($(wildcard $(LDSCRIPT)),)
1303 @echo >&2 " Could not find linker script."
1307 archprepare: prepare1 scripts_basic
1309 prepare0: archprepare FORCE
1310 $(Q)$(MAKE) $(build)=.
1312 # All the preparing..
1315 # Generate some files
1316 # ---------------------------------------------------------------------------
1318 define filechk_version.h
1319 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1320 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1321 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1322 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1325 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1326 # The BSD date on the other hand behaves different and would produce errors
1327 # with the misused '-d' switch. Respect that and search a working date with
1328 # well known pre- and suffixes for the GNU variant of date.
1329 define filechk_timestamp.h
1330 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1331 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1333 for date in gdate date.gnu date; do \
1334 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1336 if test -n "$${DATE}"; then \
1337 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1338 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1339 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1340 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1345 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1346 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1347 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1348 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1352 $(version_h): include/config/uboot.release FORCE
1353 $(call filechk,version.h)
1355 $(timestamp_h): $(srctree)/Makefile FORCE
1356 $(call filechk,timestamp.h)
1359 @if ! ( echo 'import libfdt' | ( PYTHONPATH=tools python )); then \
1361 echo >&2 '*** binman needs the Python libfdt library.'; \
1362 echo >&2 '*** Either install it on your system, or try:'; \
1364 echo >&2 '*** sudo apt-get install swig libpython-dev'; \
1366 echo >&2 '*** to have U-Boot build its own version.'; \
1370 # ---------------------------------------------------------------------------
1371 quiet_cmd_cpp_lds = LDS $@
1372 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1373 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1375 u-boot.lds: $(LDSCRIPT) prepare FORCE
1376 $(call if_changed_dep,cpp_lds)
1378 spl/u-boot-spl.bin: spl/u-boot-spl
1380 spl/u-boot-spl: tools prepare \
1381 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1382 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1384 spl/sunxi-spl.bin: spl/u-boot-spl
1387 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1390 spl/u-boot-spl.sfp: spl/u-boot-spl
1393 spl/boot.bin: spl/u-boot-spl
1396 tpl/u-boot-tpl.bin: tools prepare \
1397 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1398 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1400 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1406 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1407 -name '*.[chS]' -print`
1411 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1412 -name '*.[chS]' -print`
1414 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1420 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1423 @$(call SYSTEM_MAP,$<) > $@
1426 @if test $(call dtc-version) -lt 0104; then \
1427 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1431 #########################################################################
1433 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1434 # R_AARCH64_RELATIVE (64-bit).
1435 checkarmreloc: u-boot
1436 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1437 grep R_A | sort -u`"; \
1438 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1439 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1440 echo "$< contains unexpected relocations: $$RELOC"; \
1445 $(Q)$(MAKE) $(build)=tools/$@
1447 tools-only: scripts_basic $(version_h) $(timestamp_h)
1448 $(Q)$(MAKE) $(build)=tools
1450 tools-all: export HOST_TOOLS_ALL=y
1451 tools-all: env tools ;
1453 cross_tools: export CROSS_BUILD_TOOLS=y
1454 cross_tools: tools ;
1458 git log --no-merges U-Boot-1_1_5.. | \
1459 unexpand -a | sed -e 's/\s\s*$$//' > $@
1461 #########################################################################
1464 # Cleaning is done on three levels.
1465 # make clean Delete most generated files
1466 # Leave enough to build external modules
1467 # make mrproper Delete the current configuration, and all generated files
1468 # make distclean Remove editor backup files, patch leftover files and the like
1470 # Directories & files removed with 'make clean'
1471 CLEAN_DIRS += $(MODVERDIR) \
1472 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1473 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1475 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1476 boot* u-boot* MLO* SPL System.map
1478 # Directories & files removed with 'make mrproper'
1479 MRPROPER_DIRS += include/config include/generated spl tpl \
1481 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1482 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1484 # clean - Delete most, but leave enough to build external modules
1486 clean: rm-dirs := $(CLEAN_DIRS)
1487 clean: rm-files := $(CLEAN_FILES)
1489 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1491 clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1493 PHONY += $(clean-dirs) clean archclean
1495 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1497 # TODO: Do not use *.cfgtmp
1498 clean: $(clean-dirs)
1501 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1502 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1503 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1504 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1505 -o -name '*.symtypes' -o -name 'modules.order' \
1506 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1507 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1508 -o -name '*.gcno' \) -type f -print | xargs rm -f
1510 # mrproper - Delete all generated files, including .config
1512 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1513 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1514 mrproper-dirs := $(addprefix _mrproper_,scripts)
1516 PHONY += $(mrproper-dirs) mrproper archmrproper
1518 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1520 mrproper: clean $(mrproper-dirs)
1523 @rm -f arch/*/include/asm/arch
1530 @find $(srctree) $(RCS_FIND_IGNORE) \
1531 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1532 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1533 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1534 -o -name '*.pyc' \) \
1535 -type f -print | xargs rm -f
1539 F=`basename $(srctree)` ; cd .. ; \
1540 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1543 @echo 'Cleaning targets:'
1544 @echo ' clean - Remove most generated files but keep the config'
1545 @echo ' mrproper - Remove all generated files + config + various backup files'
1546 @echo ' distclean - mrproper + remove editor backup and patch files'
1548 @echo 'Configuration targets:'
1549 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1551 @echo 'Other generic targets:'
1552 @echo ' all - Build all necessary images depending on configuration'
1553 @echo ' tests - Build U-Boot for sandbox and run tests'
1554 @echo '* u-boot - Build the bare u-boot'
1555 @echo ' dir/ - Build all files in dir and below'
1556 @echo ' dir/file.[oisS] - Build specified target only'
1557 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1558 @echo ' (requires a recent binutils and recent build (System.map))'
1559 @echo ' tags/ctags - Generate ctags file for editors'
1560 @echo ' etags - Generate etags file for editors'
1561 @echo ' cscope - Generate cscope index'
1562 @echo ' ubootrelease - Output the release version string (use with make -s)'
1563 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1564 @echo " cfg - Don't build, just create the .cfg files"
1566 @echo 'Static analysers'
1567 @echo ' checkstack - Generate a list of stack hogs'
1569 @echo 'Documentation targets:'
1570 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1572 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1573 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1574 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1575 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1576 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1577 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1578 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1579 @echo ' 1: warnings which may be relevant and do not occur too often'
1580 @echo ' 2: warnings which occur quite often but may still be relevant'
1581 @echo ' 3: more obscure warnings, can most likely be ignored'
1582 @echo ' Multiple levels can be combined with W=12 or W=123'
1584 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1585 @echo 'For further info see the ./README file'
1590 # Documentation targets
1591 # ---------------------------------------------------------------------------
1592 %docs: scripts_basic FORCE
1593 $(Q)$(MAKE) $(build)=scripts build_docproc
1594 $(Q)$(MAKE) $(build)=doc/DocBook $@
1596 endif #ifeq ($(config-targets),1)
1597 endif #ifeq ($(mixed-targets),1)
1599 PHONY += checkstack ubootrelease ubootversion
1602 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1603 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1606 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1609 @echo $(UBOOTVERSION)
1612 # ---------------------------------------------------------------------------
1613 # Single targets are compatible with:
1614 # - build with mixed source and output
1615 # - build with separate output dir 'make O=...'
1616 # - external modules
1618 # target-dir => where to store outputfile
1619 # build-dir => directory in kernel source tree to use
1621 ifeq ($(KBUILD_EXTMOD),)
1622 build-dir = $(patsubst %/,%,$(dir $@))
1623 target-dir = $(dir $@)
1625 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1626 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1627 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1630 %.s: %.c prepare scripts FORCE
1631 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1632 %.i: %.c prepare scripts FORCE
1633 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1634 %.o: %.c prepare scripts FORCE
1635 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1636 %.lst: %.c prepare scripts FORCE
1637 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1638 %.s: %.S prepare scripts FORCE
1639 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1640 %.o: %.S prepare scripts FORCE
1641 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1642 %.symtypes: %.c prepare scripts FORCE
1643 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1646 /: prepare scripts FORCE
1648 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1649 $(build)=$(build-dir)
1650 %/: prepare scripts FORCE
1652 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1653 $(build)=$(build-dir)
1654 %.ko: prepare scripts FORCE
1656 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1657 $(build)=$(build-dir) $(@:.ko=.o)
1658 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1660 # FIXME Should go into a make.lib or something
1661 # ===========================================================================
1663 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1664 cmd_rmdirs = rm -rf $(rm-dirs)
1666 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1667 cmd_rmfiles = rm -f $(rm-files)
1669 # read all saved command lines
1671 targets := $(wildcard $(sort $(targets)))
1672 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1674 ifneq ($(cmd_files),)
1675 $(cmd_files): ; # Do not try to update included dependency files
1676 include $(cmd_files)
1679 endif # skip-makefile
1684 # Declare the contents of the .PHONY variable as phony. We keep that
1685 # information in a variable so we can use it in if_changed and friends.