8 # To see a list of typical targets execute "make help"
9 # More info can be located in ./README
10 # Comments in this file are targeted only to the developer, do not
11 # expect to learn how to build the kernel reading this file.
13 # Do not use make's built-in rules and variables
14 # (this increases performance and avoids hard-to-debug behaviour);
17 # Avoid funny character set dependencies
21 export LC_COLLATE LC_NUMERIC
23 # Avoid interference with shell env settings
26 # We are using a recursive build, so we need to do a little thinking
27 # to get the ordering right.
29 # Most importantly: sub-Makefiles should only ever modify files in
30 # their own directory. If in some directory we have a dependency on
31 # a file in another dir (which doesn't happen often, but it's often
32 # unavoidable when linking the built-in.o targets which finally
33 # turn into vmlinux), we will call a sub make in that other dir, and
34 # after that we are sure that everything which is in that other dir
37 # The only cases where we need to modify files which have global
38 # effects are thus separated out and done before the recursive
39 # descending is started. They are now explicitly listed as the
43 # ---------------------------------------------------------------------------
45 # Normally, we echo the whole command before executing it. By making
46 # that echo $($(quiet)$(cmd)), we now have the possibility to set
47 # $(quiet) to choose other forms of output instead, e.g.
49 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
50 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
52 # If $(quiet) is empty, the whole command will be printed.
53 # If it is set to "quiet_", only the short version will be printed.
54 # If it is set to "silent_", nothing will be printed at all, since
55 # the variable $(silent_cmd_cc_o_c) doesn't exist.
57 # A simple variant is to prefix commands with $(Q) - that's useful
58 # for commands that shall be hidden in non-verbose mode.
62 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
63 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
65 # To put more focus on warnings, be less verbose as default
66 # Use 'make V=1' to see the full commands
68 ifeq ("$(origin V)", "command line")
75 ifeq ($(KBUILD_VERBOSE),1)
83 # If the user is running make -s (silent mode), suppress echoing of
86 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
87 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
91 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
96 export quiet Q KBUILD_VERBOSE
98 # kbuild supports saving output files in a separate directory.
99 # To locate output files in a separate directory two syntaxes are supported.
100 # In both cases the working directory must be the root of the kernel src.
102 # Use "make O=dir/to/store/output/files/"
104 # 2) Set KBUILD_OUTPUT
105 # Set the environment variable KBUILD_OUTPUT to point to the directory
106 # where the output files shall be placed.
107 # export KBUILD_OUTPUT=dir/to/store/output/files/
110 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
113 # KBUILD_SRC is set on invocation of make in OBJ directory
114 # KBUILD_SRC is not intended to be used by the regular user (for now)
115 ifeq ($(KBUILD_SRC),)
117 # OK, Make called in directory where kernel src resides
118 # Do we want to locate output files in a separate directory?
119 ifeq ("$(origin O)", "command line")
120 KBUILD_OUTPUT := $(O)
123 # That's our default target when none is given on the command line
127 # Cancel implicit rules on top Makefile
128 $(CURDIR)/Makefile Makefile: ;
130 ifneq ($(KBUILD_OUTPUT),)
131 # Invoke a second make in the output directory, passing relevant variables
132 # check that the output directory actually exists
133 saved-output := $(KBUILD_OUTPUT)
134 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
136 $(if $(KBUILD_OUTPUT),, \
137 $(error failed to create output directory "$(saved-output)"))
139 PHONY += $(MAKECMDGOALS) sub-make
141 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
145 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
146 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
148 # Leave processing to above invocation of make
150 endif # ifneq ($(KBUILD_OUTPUT),)
151 endif # ifeq ($(KBUILD_SRC),)
153 # We process the rest of the Makefile if this is the final invocation of make
154 ifeq ($(skip-makefile),)
156 # Do not print "Entering directory ...",
157 # but we want to display it when entering to the output directory
158 # so that IDEs/editors are able to understand relative filenames.
159 MAKEFLAGS += --no-print-directory
161 # Call a source code checker (by default, "sparse") as part of the
164 # Use 'make C=1' to enable checking of only re-compiled files.
165 # Use 'make C=2' to enable checking of *all* source files, regardless
166 # of whether they are re-compiled or not.
168 # See the file "Documentation/sparse.txt" for more details, including
169 # where to get the "sparse" utility.
171 ifeq ("$(origin C)", "command line")
172 KBUILD_CHECKSRC = $(C)
174 ifndef KBUILD_CHECKSRC
178 # Use make M=dir to specify directory of external module to build
179 # Old syntax make ... SUBDIRS=$PWD is still supported
180 # Setting the environment variable KBUILD_EXTMOD take precedence
182 KBUILD_EXTMOD ?= $(SUBDIRS)
185 ifeq ("$(origin M)", "command line")
186 KBUILD_EXTMOD := $(M)
189 # If building an external module we do not care about the all: rule
190 # but instead _all depend on modules
192 ifeq ($(KBUILD_EXTMOD),)
198 ifeq ($(KBUILD_SRC),)
199 # building in the source tree
202 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
203 # building in a subdirectory of the source tree
206 srctree := $(KBUILD_SRC)
213 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
215 export srctree objtree VPATH
217 # Make sure CDPATH settings don't interfere
220 #########################################################################
222 HOSTARCH := $(shell uname -m | \
224 -e s/sun4u/sparc64/ \
227 -e s/ppc64/powerpc/ \
229 -e s/macppc/powerpc/\
232 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
233 sed -e 's/\(cygwin\).*/cygwin/')
235 export HOSTARCH HOSTOS
237 #########################################################################
239 # set default to nothing for native builds
240 ifeq ($(HOSTARCH),$(ARCH))
244 KCONFIG_CONFIG ?= .config
245 export KCONFIG_CONFIG
247 # SHELL used by kbuild
248 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
249 else if [ -x /bin/bash ]; then echo /bin/bash; \
250 else echo sh; fi ; fi)
254 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
257 ifeq ($(HOSTOS),cygwin)
261 # Mac OS X / Darwin's C preprocessor is Apple specific. It
262 # generates numerous errors and warnings. We want to bypass it
263 # and use GNU C's cpp. To do this we pass the -traditional-cpp
264 # option to the compiler. Note that the -traditional-cpp flag
265 # DOES NOT have the same semantics as GNU C's flag, all it does
266 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
268 # Apple's linker is similar, thanks to the new 2 stage linking
269 # multiple symbol definitions are treated as errors, hence the
270 # -multiply_defined suppress option to turn off this error.
272 ifeq ($(HOSTOS),darwin)
273 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
274 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
275 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
277 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
278 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
280 # Snow Leopards build environment has no longer restrictions as described above
281 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
282 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
283 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
286 # Decide whether to build built-in, modular, or both.
287 # Normally, just do built-in.
292 # If we have only "make modules", don't compile built-in objects.
293 # When we're building modules with modversions, we need to consider
294 # the built-in objects during the descend as well, in order to
295 # make sure the checksums are up to date before we record them.
297 ifeq ($(MAKECMDGOALS),modules)
298 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
301 # If we have "make <whatever> modules", compile modules
302 # in addition to whatever we do anyway.
303 # Just "make" or "make all" shall build modules as well
305 # U-Boot does not need modules
306 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
307 # KBUILD_MODULES := 1
310 #ifeq ($(MAKECMDGOALS),)
311 # KBUILD_MODULES := 1
314 export KBUILD_MODULES KBUILD_BUILTIN
315 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
317 # Look for make include files relative to root of kernel src
318 MAKEFLAGS += --include-dir=$(srctree)
320 # We need some generic definitions (do not try to remake the file).
321 $(srctree)/scripts/Kbuild.include: ;
322 include $(srctree)/scripts/Kbuild.include
324 # Make variables (CC, etc...)
326 AS = $(CROSS_COMPILE)as
328 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
329 LD = $(CROSS_COMPILE)ld.bfd
331 LD = $(CROSS_COMPILE)ld
333 CC = $(CROSS_COMPILE)gcc
335 AR = $(CROSS_COMPILE)ar
336 NM = $(CROSS_COMPILE)nm
337 LDR = $(CROSS_COMPILE)ldr
338 STRIP = $(CROSS_COMPILE)strip
339 OBJCOPY = $(CROSS_COMPILE)objcopy
340 OBJDUMP = $(CROSS_COMPILE)objdump
347 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
348 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
350 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
352 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
353 -Wno-format-security \
354 -fno-builtin -ffreestanding
355 KBUILD_AFLAGS := -D__ASSEMBLY__
357 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
358 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
359 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
361 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
362 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
363 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
364 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
365 export MAKE AWK PERL PYTHON
366 export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
368 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
369 export KBUILD_CFLAGS KBUILD_AFLAGS
371 # When compiling out-of-tree modules, put MODVERDIR in the module
372 # tree rather than in the kernel tree. The kernel tree might
374 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
376 # Files to ignore in find ... statements
378 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
379 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
381 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
382 --exclude CVS --exclude .pc --exclude .hg --exclude .git
384 # ===========================================================================
385 # Rules shared between *config targets and build targets
387 # Basic helpers built in scripts/
388 PHONY += scripts_basic
390 $(Q)$(MAKE) $(build)=scripts/basic
391 $(Q)rm -f .tmp_quiet_recordmcount
393 # To avoid any implicit rule to kick in, define an empty command.
394 scripts/basic/%: scripts_basic ;
396 PHONY += outputmakefile
397 # outputmakefile generates a Makefile in the output directory, if using a
398 # separate output directory. This allows convenient use of make in the
401 ifneq ($(KBUILD_SRC),)
402 $(Q)ln -fsn $(srctree) source
403 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
404 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
407 # To make sure we do not include .config for any of the *config targets
408 # catch them early, and hand them over to scripts/kconfig/Makefile
409 # It is allowed to specify more targets when calling make, including
410 # mixing *config targets and build targets.
411 # For example 'make oldconfig all'.
412 # Detect when mixed targets is specified, and make a second invocation
413 # of make so .config is not included in this case either (for *config).
415 version_h := include/generated/version_autogenerated.h
416 timestamp_h := include/generated/timestamp_autogenerated.h
418 no-dot-config-targets := clean clobber mrproper distclean \
419 help %docs check% coccicheck \
426 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
427 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
432 ifeq ($(KBUILD_EXTMOD),)
433 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
435 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
441 ifeq ($(mixed-targets),1)
442 # ===========================================================================
443 # We're called with mixed targets (*config and build targets).
444 # Handle them one by one.
446 PHONY += $(MAKECMDGOALS) __build_one_by_one
448 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
453 for i in $(MAKECMDGOALS); do \
454 $(MAKE) -f $(srctree)/Makefile $$i; \
458 ifeq ($(config-targets),1)
459 # ===========================================================================
460 # *config targets only - make sure prerequisites are updated, and descend
461 # in scripts/kconfig to make the *config target
463 KBUILD_DEFCONFIG := sandbox_defconfig
464 export KBUILD_DEFCONFIG KBUILD_KCONFIG
466 config: scripts_basic outputmakefile FORCE
467 +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@
469 %config: scripts_basic outputmakefile FORCE
470 +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@
473 # ===========================================================================
474 # Build targets only - this includes vmlinux, arch specific targets, clean
475 # targets and others. In general all targets except *config targets.
477 ifeq ($(dot-config),1)
479 -include include/config/auto.conf
481 # Read in dependencies to all Kconfig* files, make sure to run
482 # oldconfig if changes are detected.
483 -include include/config/auto.conf.cmd
485 # To avoid any implicit rule to kick in, define an empty command
486 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
488 # If .config is newer than include/config/auto.conf, someone tinkered
489 # with it and forgot to run make oldconfig.
490 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
491 # we execute the config step to be sure to catch updated Kconfig files
492 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
493 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
495 -include include/autoconf.mk
496 -include include/autoconf.mk.dep
498 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
499 # is up-to-date. When we switch to a different board configuration, old CONFIG
500 # macros are still remaining in include/config/auto.conf. Without the following
501 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
502 autoconf_is_current := $(if $(wildcard $(KCONFIG_CONFIG)),$(shell find . \
503 -path ./include/config/auto.conf -newer $(KCONFIG_CONFIG)))
504 ifneq ($(autoconf_is_current),)
505 include $(srctree)/config.mk
506 include $(srctree)/arch/$(ARCH)/Makefile
509 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
510 # that (or fail if absent). Otherwise, search for a linker script in a
514 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
515 ifdef CONFIG_SYS_LDSCRIPT
516 # need to strip off double quotes
517 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
521 # If there is no specified link script, we look in a number of places for it
523 ifeq ($(wildcard $(LDSCRIPT)),)
524 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
526 ifeq ($(wildcard $(LDSCRIPT)),)
527 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
529 ifeq ($(wildcard $(LDSCRIPT)),)
530 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
535 # Dummy target needed, because used as prerequisite
536 include/config/auto.conf: ;
537 endif # $(dot-config)
539 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
546 KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
549 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
552 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
553 # option to the assembler.
556 # Report stack usage if supported
557 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
558 KBUILD_CFLAGS += -fstack-usage
561 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
563 # turn jbsr into jsr for m68k
565 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
566 KBUILD_AFLAGS += -Wa,-gstabs,-S
570 # Prohibit date/time macros, which would make the build non-deterministic
571 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
573 ifneq ($(CONFIG_SYS_TEXT_BASE),)
574 KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
577 export CONFIG_SYS_TEXT_BASE
579 include $(srctree)/scripts/Makefile.extrawarn
581 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
582 KBUILD_CPPFLAGS += $(KCPPFLAGS)
583 KBUILD_AFLAGS += $(KAFLAGS)
584 KBUILD_CFLAGS += $(KCFLAGS)
586 # Use UBOOTINCLUDE when you must reference the include/ directory.
587 # Needed to be compatible with the O= option
590 $(if $(KBUILD_SRC), -I$(srctree)/include) \
591 -I$(srctree)/arch/$(ARCH)/include \
592 -include $(srctree)/include/linux/kconfig.h
594 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
595 CHECKFLAGS += $(NOSTDINC_FLAGS)
598 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
600 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
602 #########################################################################
603 # U-Boot objects....order is important (i.e. start must be first)
605 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
608 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
609 libs-$(CONFIG_OF_EMBED) += dts/
614 libs-y += drivers/dma/
615 libs-y += drivers/gpio/
616 libs-y += drivers/i2c/
617 libs-y += drivers/mmc/
618 libs-y += drivers/mtd/
619 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
620 libs-y += drivers/mtd/onenand/
621 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
622 libs-y += drivers/mtd/spi/
623 libs-y += drivers/net/
624 libs-y += drivers/net/phy/
625 libs-y += drivers/pci/
626 libs-y += drivers/power/ \
627 drivers/power/fuel_gauge/ \
629 drivers/power/pmic/ \
630 drivers/power/battery/
631 libs-y += drivers/spi/
632 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
633 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
634 libs-y += drivers/serial/
635 libs-y += drivers/usb/eth/
636 libs-y += drivers/usb/gadget/
637 libs-y += drivers/usb/host/
638 libs-y += drivers/usb/musb/
639 libs-y += drivers/usb/musb-new/
640 libs-y += drivers/usb/phy/
641 libs-y += drivers/usb/ulpi/
643 libs-$(CONFIG_API) += api/
644 libs-$(CONFIG_HAS_POST) += post/
648 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
650 libs-y := $(sort $(libs-y))
652 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
654 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
656 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
658 u-boot-init := $(head-y)
659 u-boot-main := $(libs-y)
663 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
664 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
666 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
668 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
670 export PLATFORM_LIBGCC
672 # Special flags for CPP when processing the linker script.
673 # Pass the version down so we can handle backwards compatibility
676 -include $(srctree)/include/u-boot/u-boot.lds.h \
678 $(shell $(LD) --version | \
679 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
681 #########################################################################
682 #########################################################################
684 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
686 @actual=`wc -c $@ | awk '{print $$1}'`; \
687 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
688 if test $$actual -gt $$limit; then \
689 echo "$@ exceeds file size limit:" >&2 ; \
690 echo " limit: $$limit bytes" >&2 ; \
691 echo " actual: $$actual bytes" >&2 ; \
692 echo " excess: $$((actual - limit)) bytes" >&2; \
699 # Statically apply RELA-style relocations (currently arm64 only)
700 ifneq ($(CONFIG_STATIC_RELA),)
701 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
703 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
704 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
705 tools/relocate-rela $(2) $(3) $$start $$end
710 # Always append ALL so that arch config.mk's can add custom ones
711 ALL-y += u-boot.srec u-boot.bin System.map binary_size_check
713 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
714 ifeq ($(CONFIG_SPL_FSL_PBL),y)
715 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
717 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
719 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
720 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
721 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
722 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
723 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
724 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
726 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
727 ifneq ($(CONFIG_SPL_TARGET),)
728 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
730 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
732 # We can't do this yet due to the need for binary blobs
733 # ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
735 # enable combined SPL/u-boot/dtb rules for tegra
736 ifneq ($(CONFIG_TEGRA),)
737 ifeq ($(CONFIG_SPL),y)
738 ifeq ($(CONFIG_OF_SEPARATE),y)
739 ALL-y += u-boot-dtb-tegra.bin
741 ALL-y += u-boot-nodtb-tegra.bin
746 # Add optional build target if defined in board/cpu/soc headers
747 ifneq ($(CONFIG_BUILD_TARGET),)
748 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
751 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
752 ifneq ($(CONFIG_SYS_TEXT_BASE),)
753 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
756 quiet_cmd_objcopy = OBJCOPY $@
757 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
759 quiet_cmd_mkimage = MKIMAGE $@
760 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
761 $(if $(KBUILD_VERBOSE:1=), >/dev/null)
763 quiet_cmd_cat = CAT $@
764 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
766 append = cat $(filter-out $< $(PHONY), $^) >> $@
768 quiet_cmd_pad_cat = CAT $@
769 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
772 ifneq ($(CONFIG_SYS_GENERIC_BOARD),y)
773 @echo "===================== WARNING ======================"
774 @echo "Please convert this board to generic board."
775 @echo "Otherwise it will be removed by the end of 2014."
776 @echo "See doc/README.generic-board for further information"
777 @echo "===================================================="
781 dtbs dts/dt.dtb: checkdtc u-boot
782 $(Q)$(MAKE) $(build)=dts dtbs
784 u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE
785 $(call if_changed,cat)
788 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
790 quiet_cmd_copy = COPY $@
793 u-boot.dtb: dts/dt.dtb
796 OBJCOPYFLAGS_u-boot.hex := -O ihex
798 OBJCOPYFLAGS_u-boot.srec := -O srec
800 u-boot.hex u-boot.srec: u-boot FORCE
801 $(call if_changed,objcopy)
803 OBJCOPYFLAGS_u-boot.bin := -O binary \
804 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec)
806 binary_size_check: u-boot.bin FORCE
807 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \
808 map_size=$(shell cat u-boot.map | \
809 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
812 if [ "" != "$$map_size" ]; then \
813 if test $$map_size -ne $$file_size; then \
814 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
815 echo " but u-boot.bin shows $$file_size" >&2 ; \
820 u-boot.bin: u-boot FORCE
821 $(call if_changed,objcopy)
822 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
827 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
830 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
832 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
834 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
835 $(call if_changed,objcopy)
838 # U-Boot entry point, needed for booting of full-blown U-Boot
839 # from the SPL U-Boot version.
841 ifndef CONFIG_SYS_UBOOT_START
842 CONFIG_SYS_UBOOT_START := 0
845 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
846 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
847 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
849 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
850 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
852 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
853 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
855 u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
856 $(call if_changed,mkimage)
858 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
860 u-boot-dtb.img: u-boot-dtb.bin FORCE
861 $(call if_changed,mkimage)
863 u-boot.sha1: u-boot.bin
864 tools/ubsha1 u-boot.bin
867 $(OBJDUMP) -d $< > $@
870 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
872 SPL_PAYLOAD := u-boot.bin
875 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
876 --pad-to=$(CONFIG_SPL_PAD_TO)
877 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
878 $(call if_changed,pad_cat)
880 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
881 --pad-to=$(CONFIG_TPL_PAD_TO)
882 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
883 $(call if_changed,pad_cat)
885 SPL: spl/u-boot-spl.bin FORCE
886 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
888 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
889 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
891 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
893 u-boot.ubl: u-boot-with-spl.bin FORCE
894 $(call if_changed,mkimage)
896 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
897 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
898 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
899 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
900 $(call if_changed,mkimage)
902 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
903 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
904 $(call if_changed,pad_cat)
906 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
907 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
908 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
909 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
911 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
912 # Both images are created using mkimage (crc etc), so that the ROM
913 # bootloader can check its integrity. Padding needs to be done to the
914 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
915 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
916 # The resulting image containing both U-Boot images is called u-boot.spr
917 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
918 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
919 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
920 $(call if_changed,mkimage)
922 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
924 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
925 $(call if_changed,pad_cat)
927 MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \
928 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL
929 spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE
930 $(call if_changed,mkimage)
932 OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
934 u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE
935 $(call if_changed,pad_cat)
937 MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \
938 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot
939 u-boot-nand.gph: u-boot.bin FORCE
940 $(call if_changed,mkimage)
941 @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@
943 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
944 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
946 ifneq ($(CONFIG_X86_RESET_VECTOR),)
947 rom: u-boot.rom FORCE
949 IFDTOOL=$(objtree)/tools/ifdtool
950 IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb
951 IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1)
952 IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot.bin
953 IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin
955 ifneq ($(CONFIG_HAVE_INTEL_ME),)
956 IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin
957 IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin
960 ifneq ($(CONFIG_HAVE_MRC),)
961 IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin
964 ifneq ($(CONFIG_HAVE_FSP),)
965 IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE)
968 ifneq ($(CONFIG_HAVE_CMC),)
969 IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE)
972 ifneq ($(CONFIG_X86_OPTION_ROM_ADDR),)
973 IFDTOOL_FLAGS += -w $(CONFIG_X86_OPTION_ROM_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_X86_OPTION_ROM_FILE)
976 quiet_cmd_ifdtool = IFDTOOL $@
977 cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp;
978 ifneq ($(CONFIG_HAVE_INTEL_ME),)
979 cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp;
981 cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp;
982 cmd_ifdtool += mv u-boot.tmp $@
984 u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin
985 $(call if_changed,ifdtool)
987 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
988 u-boot-x86-16bit.bin: u-boot FORCE
989 $(call if_changed,objcopy)
992 ifneq ($(CONFIG_SUNXI),)
993 OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \
994 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
995 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \
996 u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE
997 $(call if_changed,pad_cat)
1000 ifneq ($(CONFIG_TEGRA),)
1001 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1002 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1003 $(call if_changed,pad_cat)
1005 ifeq ($(CONFIG_OF_SEPARATE),y)
1006 u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE
1007 $(call if_changed,cat)
1011 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1012 $(call if_changed,cat)
1014 #Add a target to create boot binary having SPL binary in PBI format
1015 #concatenated with u-boot binary. It is need by PowerPC SoC having
1016 #internal SRAM <= 512KB.
1017 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1018 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1019 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1021 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1022 $(call if_changed,mkimage)
1025 UBOOT_BINLOAD := u-boot.img
1027 UBOOT_BINLOAD := u-boot.bin
1030 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1033 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1034 $(call if_changed,pad_cat)
1036 # PPC4xx needs the SPL at the end of the image, since the reset vector
1037 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1038 # and need to introduce a new build target with the full blown U-Boot
1039 # at the start padded up to the start of the SPL image. And then concat
1040 # the SPL image to the end.
1042 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1043 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1044 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1045 $(call if_changed,pad_cat)
1047 # Create a new ELF from a raw binary file. This is useful for arm64
1048 # where static relocation needs to be performed on the raw binary,
1049 # but certain simulators only accept an ELF file (but don't do the
1051 # FIXME refactor dts/Makefile to share target/arch detection
1052 u-boot.elf: u-boot.bin
1053 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \
1055 @$(LD) u-boot-elf.o -o $@ \
1056 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
1057 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1059 # Rule to link u-boot
1060 # May be overridden by arch/$(ARCH)/config.mk
1061 quiet_cmd_u-boot__ ?= LD $@
1062 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1063 -T u-boot.lds $(u-boot-init) \
1064 --start-group $(u-boot-main) --end-group \
1065 $(PLATFORM_LIBS) -Map u-boot.map
1067 quiet_cmd_smap = GEN common/system_map.o
1069 smap=`$(call SYSTEM_MAP,u-boot) | \
1070 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1071 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1072 -c $(srctree)/common/system_map.c -o common/system_map.o
1074 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds
1075 $(call if_changed,u-boot__)
1076 ifeq ($(CONFIG_KALLSYMS),y)
1078 $(call cmd,u-boot__) common/system_map.o
1081 # The actual objects are generated when descending,
1082 # make sure no implicit rule kicks in
1083 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1085 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1086 # Preset locale variables to speed up the build process. Limit locale
1087 # tweaks to this spot to avoid wrong language settings when running
1088 # make menuconfig etc.
1089 # Error messages still appears in the original language
1091 PHONY += $(u-boot-dirs)
1092 $(u-boot-dirs): prepare scripts
1093 $(Q)$(MAKE) $(build)=$@
1096 # The "tools" are needed early
1097 $(filter-out tools, $(u-boot-dirs)): tools
1098 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1099 # is "yes"), so compile examples after U-Boot is compiled.
1100 examples: $(filter-out examples, $(u-boot-dirs))
1102 define filechk_uboot.release
1103 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1106 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1107 include/config/uboot.release: include/config/auto.conf FORCE
1108 $(call filechk,uboot.release)
1111 # Things we need to do before we recursively start building the kernel
1112 # or the modules are listed in "prepare".
1113 # A multi level approach is used. prepareN is processed before prepareN-1.
1114 # archprepare is used in arch Makefiles and when processed asm symlink,
1115 # version.h and scripts_basic is processed / created.
1117 # Listed in dependency order
1118 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1120 # prepare3 is used to check if we are building in a separate output directory,
1122 # 1) Check that make has not been executed in the kernel src $(srctree)
1123 prepare3: include/config/uboot.release
1124 ifneq ($(KBUILD_SRC),)
1125 @$(kecho) ' Using $(srctree) as source for U-Boot'
1126 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1127 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1128 echo >&2 " in the '$(srctree)' directory.";\
1133 # prepare2 creates a makefile if using a separate output directory
1134 prepare2: prepare3 outputmakefile
1136 prepare1: prepare2 $(version_h) $(timestamp_h) \
1137 include/config/auto.conf
1138 ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
1139 ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
1140 @echo >&2 " Your architecture does not support generic board."
1141 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file."
1145 ifeq ($(wildcard $(LDSCRIPT)),)
1146 @echo >&2 " Could not find linker script."
1150 archprepare: prepare1 scripts_basic
1152 prepare0: archprepare FORCE
1153 $(Q)$(MAKE) $(build)=.
1155 # All the preparing..
1158 # Generate some files
1159 # ---------------------------------------------------------------------------
1161 define filechk_version.h
1162 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1163 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1164 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \
1165 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; )
1168 define filechk_timestamp.h
1169 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1170 LC_ALL=C date +'#define U_BOOT_TIME "%T"')
1173 $(version_h): include/config/uboot.release FORCE
1174 $(call filechk,version.h)
1176 $(timestamp_h): $(srctree)/Makefile FORCE
1177 $(call filechk,timestamp.h)
1179 # ---------------------------------------------------------------------------
1183 @echo '*** Warning: make $@ is unnecessary now.'
1185 # ---------------------------------------------------------------------------
1186 quiet_cmd_cpp_lds = LDS $@
1187 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1188 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1190 u-boot.lds: $(LDSCRIPT) prepare FORCE
1191 $(call if_changed_dep,cpp_lds)
1193 spl/u-boot-spl.bin: spl/u-boot-spl
1195 spl/u-boot-spl: tools prepare
1196 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1198 spl/sunxi-spl.bin: spl/u-boot-spl
1201 tpl/u-boot-tpl.bin: tools prepare
1202 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1204 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1210 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1211 -name '*.[chS]' -print`
1214 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1215 -name '*.[chS]' -print`
1217 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1223 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1226 @$(call SYSTEM_MAP,$<) > $@
1229 @if test $(call dtc-version) -lt 0104; then \
1230 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1234 #########################################################################
1236 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1237 # R_AARCH64_RELATIVE (64-bit).
1238 checkarmreloc: u-boot
1239 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1240 grep R_A | sort -u`"; \
1241 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1242 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1243 echo "$< contains unexpected relocations: $$RELOC"; \
1248 $(Q)$(MAKE) $(build)=tools/$@
1250 tools-only: scripts_basic $(version_h) $(timestamp_h)
1251 $(Q)$(MAKE) $(build)=tools
1253 tools-all: export HOST_TOOLS_ALL=y
1254 tools-all: env tools ;
1256 cross_tools: export CROSS_BUILD_TOOLS=y
1257 cross_tools: tools ;
1261 git log --no-merges U-Boot-1_1_5.. | \
1262 unexpand -a | sed -e 's/\s\s*$$//' > $@
1264 include/license.h: tools/bin2header COPYING
1265 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1266 #########################################################################
1269 # Cleaning is done on three levels.
1270 # make clean Delete most generated files
1271 # Leave enough to build external modules
1272 # make mrproper Delete the current configuration, and all generated files
1273 # make distclean Remove editor backup files, patch leftover files and the like
1275 # Directories & files removed with 'make clean'
1276 CLEAN_DIRS += $(MODVERDIR) \
1277 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1278 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1280 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1281 u-boot* MLO* SPL System.map
1283 # Directories & files removed with 'make mrproper'
1284 MRPROPER_DIRS += include/config include/generated spl tpl \
1286 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1287 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1289 # clean - Delete most, but leave enough to build external modules
1291 clean: rm-dirs := $(CLEAN_DIRS)
1292 clean: rm-files := $(CLEAN_FILES)
1294 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1296 clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1298 PHONY += $(clean-dirs) clean archclean
1300 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1302 # TODO: Do not use *.cfgtmp
1303 clean: $(clean-dirs)
1306 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1307 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1308 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1309 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1310 -o -name '*.symtypes' -o -name 'modules.order' \
1311 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1312 -o -name '*.gcno' \) -type f -print | xargs rm -f
1314 # mrproper - Delete all generated files, including .config
1316 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1317 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1318 mrproper-dirs := $(addprefix _mrproper_,scripts)
1320 PHONY += $(mrproper-dirs) mrproper archmrproper
1322 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1324 mrproper: clean $(mrproper-dirs)
1327 @rm -f arch/*/include/asm/arch
1334 @find $(srctree) $(RCS_FIND_IGNORE) \
1335 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1336 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1337 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1338 -o -name '*.pyc' \) \
1339 -type f -print | xargs rm -f
1343 F=`basename $(srctree)` ; cd .. ; \
1344 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1347 @echo 'Cleaning targets:'
1348 @echo ' clean - Remove most generated files but keep the config'
1349 @echo ' mrproper - Remove all generated files + config + various backup files'
1350 @echo ' distclean - mrproper + remove editor backup and patch files'
1352 @echo 'Configuration targets:'
1353 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1355 @echo 'Other generic targets:'
1356 @echo ' all - Build all necessary images depending on configuration'
1357 @echo '* u-boot - Build the bare u-boot'
1358 @echo ' dir/ - Build all files in dir and below'
1359 @echo ' dir/file.[oisS] - Build specified target only'
1360 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1361 @echo ' (requires a recent binutils and recent build (System.map))'
1362 @echo ' tags/ctags - Generate ctags file for editors'
1363 @echo ' etags - Generate etags file for editors'
1364 @echo ' cscope - Generate cscope index'
1365 @echo ' ubootrelease - Output the release version string (use with make -s)'
1366 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1368 @echo 'Static analysers'
1369 @echo ' checkstack - Generate a list of stack hogs'
1371 @echo 'Documentation targets:'
1372 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1374 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1375 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1376 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1377 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1378 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1379 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1380 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1381 @echo ' 1: warnings which may be relevant and do not occur too often'
1382 @echo ' 2: warnings which occur quite often but may still be relevant'
1383 @echo ' 3: more obscure warnings, can most likely be ignored'
1384 @echo ' Multiple levels can be combined with W=12 or W=123'
1386 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1387 @echo 'For further info see the ./README file'
1390 # Documentation targets
1391 # ---------------------------------------------------------------------------
1392 %docs: scripts_basic FORCE
1393 $(Q)$(MAKE) $(build)=scripts build_docproc
1394 $(Q)$(MAKE) $(build)=doc/DocBook $@
1397 PHONY += prepare scripts
1401 endif #ifeq ($(config-targets),1)
1402 endif #ifeq ($(mixed-targets),1)
1404 PHONY += checkstack ubootrelease ubootversion
1407 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1408 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1411 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1414 @echo $(UBOOTVERSION)
1417 # ---------------------------------------------------------------------------
1418 # Single targets are compatible with:
1419 # - build with mixed source and output
1420 # - build with separate output dir 'make O=...'
1421 # - external modules
1423 # target-dir => where to store outputfile
1424 # build-dir => directory in kernel source tree to use
1426 ifeq ($(KBUILD_EXTMOD),)
1427 build-dir = $(patsubst %/,%,$(dir $@))
1428 target-dir = $(dir $@)
1430 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1431 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1432 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1435 %.s: %.c prepare scripts FORCE
1436 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1437 %.i: %.c prepare scripts FORCE
1438 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1439 %.o: %.c prepare scripts FORCE
1440 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1441 %.lst: %.c prepare scripts FORCE
1442 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1443 %.s: %.S prepare scripts FORCE
1444 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1445 %.o: %.S prepare scripts FORCE
1446 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1447 %.symtypes: %.c prepare scripts FORCE
1448 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1451 /: prepare scripts FORCE
1453 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1454 $(build)=$(build-dir)
1455 %/: prepare scripts FORCE
1457 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1458 $(build)=$(build-dir)
1459 %.ko: prepare scripts FORCE
1461 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1462 $(build)=$(build-dir) $(@:.ko=.o)
1463 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1465 # FIXME Should go into a make.lib or something
1466 # ===========================================================================
1468 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1469 cmd_rmdirs = rm -rf $(rm-dirs)
1471 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1472 cmd_rmfiles = rm -f $(rm-files)
1474 # read all saved command lines
1476 targets := $(wildcard $(sort $(targets)))
1477 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1479 ifneq ($(cmd_files),)
1480 $(cmd_files): ; # Do not try to update included dependency files
1481 include $(cmd_files)
1484 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1486 # $(Q)$(MAKE) $(clean)=dir
1487 clean := -f $(srctree)/scripts/Makefile.clean obj
1489 endif # skip-makefile
1494 # Declare the contents of the .PHONY variable as phony. We keep that
1495 # information in a variable so we can use it in if_changed and friends.