2 # (C) Copyright 2000-2013
5 # SPDX-License-Identifier: GPL-2.0+
15 # To see a list of typical targets execute "make help"
16 # More info can be located in ./README
17 # Comments in this file are targeted only to the developer, do not
18 # expect to learn how to build the kernel reading this file.
21 # o use make's built-in rules and variables
22 # (this increases performance and avoids hard-to-debug behaviour);
23 # o print "Entering directory ...";
24 MAKEFLAGS += -rR --no-print-directory
26 # Avoid funny character set dependencies
30 export LC_COLLATE LC_NUMERIC
32 # We are using a recursive build, so we need to do a little thinking
33 # to get the ordering right.
35 # Most importantly: sub-Makefiles should only ever modify files in
36 # their own directory. If in some directory we have a dependency on
37 # a file in another dir (which doesn't happen often, but it's often
38 # unavoidable when linking the built-in.o targets which finally
39 # turn into vmlinux), we will call a sub make in that other dir, and
40 # after that we are sure that everything which is in that other dir
43 # The only cases where we need to modify files which have global
44 # effects are thus separated out and done before the recursive
45 # descending is started. They are now explicitly listed as the
48 # To put more focus on warnings, be less verbose as default
49 # Use 'make V=1' to see the full commands
51 ifeq ("$(origin V)", "command line")
58 # Call a source code checker (by default, "sparse") as part of the
61 # Use 'make C=1' to enable checking of only re-compiled files.
62 # Use 'make C=2' to enable checking of *all* source files, regardless
63 # of whether they are re-compiled or not.
65 # See the file "Documentation/sparse.txt" for more details, including
66 # where to get the "sparse" utility.
68 ifeq ("$(origin C)", "command line")
69 KBUILD_CHECKSRC = $(C)
71 ifndef KBUILD_CHECKSRC
75 # Use make M=dir to specify directory of external module to build
76 # Old syntax make ... SUBDIRS=$PWD is still supported
77 # Setting the environment variable KBUILD_EXTMOD take precedence
79 KBUILD_EXTMOD ?= $(SUBDIRS)
82 ifeq ("$(origin M)", "command line")
86 # kbuild supports saving output files in a separate directory.
87 # To locate output files in a separate directory two syntaxes are supported.
88 # In both cases the working directory must be the root of the kernel src.
90 # Use "make O=dir/to/store/output/files/"
92 # 2) Set KBUILD_OUTPUT
93 # Set the environment variable KBUILD_OUTPUT to point to the directory
94 # where the output files shall be placed.
95 # export KBUILD_OUTPUT=dir/to/store/output/files/
98 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
102 # KBUILD_SRC is set on invocation of make in OBJ directory
103 # KBUILD_SRC is not intended to be used by the regular user (for now)
104 ifeq ($(KBUILD_SRC),)
106 # OK, Make called in directory where kernel src resides
107 # Do we want to locate output files in a separate directory?
108 ifeq ("$(origin O)", "command line")
109 KBUILD_OUTPUT := $(O)
112 ifeq ("$(origin W)", "command line")
113 export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
116 # That's our default target when none is given on the command line
120 # Cancel implicit rules on top Makefile
121 $(CURDIR)/Makefile Makefile: ;
123 ifneq ($(KBUILD_OUTPUT),)
124 # Invoke a second make in the output directory, passing relevant variables
125 # check that the output directory actually exists
126 saved-output := $(KBUILD_OUTPUT)
127 KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
128 $(if $(KBUILD_OUTPUT),, \
129 $(error output directory "$(saved-output)" does not exist))
131 PHONY += $(MAKECMDGOALS) sub-make
133 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
137 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
138 KBUILD_SRC=$(CURDIR) \
139 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
140 $(filter-out _all sub-make,$(MAKECMDGOALS))
142 # Leave processing to above invocation of make
144 endif # ifneq ($(KBUILD_OUTPUT),)
145 endif # ifeq ($(KBUILD_SRC),)
147 # We process the rest of the Makefile if this is the final invocation of make
148 ifeq ($(skip-makefile),)
150 # If building an external module we do not care about the all: rule
151 # but instead _all depend on modules
153 ifeq ($(KBUILD_EXTMOD),)
159 srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
164 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
166 export srctree objtree VPATH
168 OBJTREE := $(objtree)
169 SPLTREE := $(OBJTREE)/spl
170 TPLTREE := $(OBJTREE)/tpl
171 SRCTREE := $(srctree)
173 export TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE
175 MKCONFIG := $(SRCTREE)/mkconfig
178 # Make sure CDPATH settings don't interfere
181 #########################################################################
183 TIMESTAMP_FILE = include/generated/timestamp_autogenerated.h
184 VERSION_FILE = include/generated/version_autogenerated.h
186 HOSTARCH := $(shell uname -m | \
188 -e s/sun4u/sparc64/ \
191 -e s/ppc64/powerpc/ \
193 -e s/macppc/powerpc/\
196 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
197 sed -e 's/\(cygwin\).*/cygwin/')
199 export HOSTARCH HOSTOS
201 # Deal with colliding definitions from tcsh etc.
204 #########################################################################
206 # The "tools" are needed early, so put this first
207 # Don't include stuff already done in $(LIBS)
208 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
209 # is "yes"), so compile examples after U-Boot is compiled.
211 SUBDIRS = $(SUBDIR_TOOLS)
213 .PHONY : $(SUBDIRS) $(VERSION_FILE) $(TIMESTAMP_FILE)
215 ifeq (include/config.mk,$(wildcard include/config.mk))
217 # Include autoconf.mk before config.mk so that the config options are available
218 # to all top level build files. We need the dummy all: target to prevent the
219 # dependency target in autoconf.mk.dep from being the default.
221 sinclude include/autoconf.mk.dep
222 sinclude include/autoconf.mk
224 SUBDIR_EXAMPLES-y := examples/standalone
225 SUBDIR_EXAMPLES-$(CONFIG_API) += examples/api
226 ifndef CONFIG_SANDBOX
227 SUBDIRS += $(SUBDIR_EXAMPLES-y)
230 # load ARCH, BOARD, and CPU configuration
231 include include/config.mk
232 export ARCH CPU BOARD VENDOR SOC
234 # set default to nothing for native builds
235 ifeq ($(HOSTARCH),$(ARCH))
239 # SHELL used by kbuild
240 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
241 else if [ -x /bin/bash ]; then echo /bin/bash; \
242 else echo sh; fi ; fi)
245 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
247 ifeq ($(HOSTOS),cygwin)
251 # Mac OS X / Darwin's C preprocessor is Apple specific. It
252 # generates numerous errors and warnings. We want to bypass it
253 # and use GNU C's cpp. To do this we pass the -traditional-cpp
254 # option to the compiler. Note that the -traditional-cpp flag
255 # DOES NOT have the same semantics as GNU C's flag, all it does
256 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
258 # Apple's linker is similar, thanks to the new 2 stage linking
259 # multiple symbol definitions are treated as errors, hence the
260 # -multiply_defined suppress option to turn off this error.
262 ifeq ($(HOSTOS),darwin)
263 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
264 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
265 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
267 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
268 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
270 # Snow Leopards build environment has no longer restrictions as described above
271 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
272 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
273 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
276 # Decide whether to build built-in, modular, or both.
277 # Normally, just do built-in.
282 # If we have only "make modules", don't compile built-in objects.
283 # When we're building modules with modversions, we need to consider
284 # the built-in objects during the descend as well, in order to
285 # make sure the checksums are up to date before we record them.
287 ifeq ($(MAKECMDGOALS),modules)
288 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
291 # If we have "make <whatever> modules", compile modules
292 # in addition to whatever we do anyway.
293 # Just "make" or "make all" shall build modules as well
295 # U-Boot does not need modules
296 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
297 # KBUILD_MODULES := 1
300 #ifeq ($(MAKECMDGOALS),)
301 # KBUILD_MODULES := 1
304 export KBUILD_MODULES KBUILD_BUILTIN
305 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
308 # ---------------------------------------------------------------------------
310 # Normally, we echo the whole command before executing it. By making
311 # that echo $($(quiet)$(cmd)), we now have the possibility to set
312 # $(quiet) to choose other forms of output instead, e.g.
314 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
315 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
317 # If $(quiet) is empty, the whole command will be printed.
318 # If it is set to "quiet_", only the short version will be printed.
319 # If it is set to "silent_", nothing will be printed at all, since
320 # the variable $(silent_cmd_cc_o_c) doesn't exist.
322 # A simple variant is to prefix commands with $(Q) - that's useful
323 # for commands that shall be hidden in non-verbose mode.
327 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
328 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
330 ifeq ($(KBUILD_VERBOSE),1)
338 # If the user is running make -s (silent mode), suppress echoing of
341 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
345 export quiet Q KBUILD_VERBOSE
348 # Look for make include files relative to root of kernel src
349 MAKEFLAGS += --include-dir=$(srctree)
351 # We need some generic definitions (do not try to remake the file).
352 $(srctree)/scripts/Kbuild.include: ;
353 include $(srctree)/scripts/Kbuild.include
355 # Make variables (CC, etc...)
357 AS = $(CROSS_COMPILE)as
359 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
360 LD = $(CROSS_COMPILE)ld.bfd
362 LD = $(CROSS_COMPILE)ld
364 CC = $(CROSS_COMPILE)gcc
366 AR = $(CROSS_COMPILE)ar
367 NM = $(CROSS_COMPILE)nm
368 LDR = $(CROSS_COMPILE)ldr
369 STRIP = $(CROSS_COMPILE)strip
370 OBJCOPY = $(CROSS_COMPILE)objcopy
371 OBJDUMP = $(CROSS_COMPILE)objdump
373 RANLIB = $(CROSS_COMPILE)RANLIB
377 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
378 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
380 # Use UBOOTINCLUDE when you must reference the include/ directory.
381 # Needed to be compatible with the O= option
383 ifneq ($(OBJTREE),$(SRCTREE))
384 UBOOTINCLUDE += -I$(OBJTREE)/include
386 UBOOTINCLUDE += -I$(srctree)/include \
387 -I$(srctree)/arch/$(ARCH)/include
389 KBUILD_CPPFLAGS := -D__KERNEL__
391 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
392 -Wno-format-security \
393 -fno-builtin -ffreestanding
394 KBUILD_AFLAGS := -D__ASSEMBLY__
396 U_BOOT_VERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
398 export VERSION PATCHLEVEL SUBLEVEL U_BOOT_VERSION
399 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
400 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
402 export DTC CHECK CHECKFLAGS
404 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE
405 export KBUILD_CFLAGS KBUILD_AFLAGS
407 # When compiling out-of-tree modules, put MODVERDIR in the module
408 # tree rather than in the kernel tree. The kernel tree might
410 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
412 # Files to ignore in find ... statements
414 RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
415 -o -name .pc -o -name .hg -o -name .git \) -prune -o
416 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
417 --exclude CVS --exclude .pc --exclude .hg --exclude .git
419 # ===========================================================================
420 # Rules shared between *config targets and build targets
422 # Basic helpers built in scripts/
423 PHONY += scripts_basic
425 $(Q)$(MAKE) $(build)=scripts/basic
426 $(Q)rm -f .tmp_quiet_recordmcount
428 # To avoid any implicit rule to kick in, define an empty command.
429 scripts/basic/%: scripts_basic ;
432 KBUILD_CFLAGS += -Os #-fomit-frame-pointer
435 KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
438 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
441 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
442 # option to the assembler.
445 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
446 CHECKFLAGS += $(NOSTDINC_FLAGS)
448 # Report stack usage if supported
449 KBUILD_CFLAGS += $(call cc-option,-fstack-usage)
451 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
453 # turn jbsr into jsr for m68k
455 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
456 KBUILD_AFLAGS += -Wa,-gstabs,-S
460 # load other configuration
461 include $(TOPDIR)/config.mk
463 ifneq ($(CONFIG_SYS_TEXT_BASE),)
464 KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
467 export CONFIG_SYS_TEXT_BASE
469 LDFLAGS_u-boot += -T u-boot.lds $(LDFLAGS_FINAL)
470 ifneq ($(CONFIG_SYS_TEXT_BASE),)
471 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
474 # Targets which don't build the source code
475 NON_BUILD_TARGETS = backup clean clobber distclean mrproper unconfig %_config
477 # Only do the generic board check when actually building, not configuring
478 ifeq ($(filter $(NON_BUILD_TARGETS),$(MAKECMDGOALS)),)
479 ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
480 ifneq ($(CONFIG_SYS_GENERIC_BOARD),)
481 CHECK_GENERIC_BOARD = $(error Your architecture does not support generic board. \
482 Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
488 cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
489 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
491 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
492 # that (or fail if absent). Otherwise, search for a linker script in a
495 LDSCRIPT_MAKEFILE_DIR = $(dir $(LDSCRIPT))
498 #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
499 ifdef CONFIG_SYS_LDSCRIPT
500 # need to strip off double quotes
501 LDSCRIPT := $(CONFIG_SYS_LDSCRIPT:"%"=%)
505 # If there is no specified link script, we look in a number of places for it
507 ifeq ($(CONFIG_NAND_U_BOOT),y)
508 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
509 ifeq ($(wildcard $(LDSCRIPT)),)
510 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
513 ifeq ($(wildcard $(LDSCRIPT)),)
514 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
516 ifeq ($(wildcard $(LDSCRIPT)),)
517 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds
519 ifeq ($(wildcard $(LDSCRIPT)),)
520 LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds
521 # We don't expect a Makefile here
522 LDSCRIPT_MAKEFILE_DIR =
524 ifeq ($(wildcard $(LDSCRIPT)),)
525 $(error could not find linker script)
529 #########################################################################
530 # U-Boot objects....order is important (i.e. start must be first)
532 head-y := $(CPUDIR)/start.o
533 head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
534 head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
538 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
541 LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
544 LIBS-y += $(CPUDIR)/$(SOC)/
546 LIBS-$(CONFIG_IXP4XX_NPE) += drivers/net/npe/
547 LIBS-$(CONFIG_OF_EMBED) += dts/
548 LIBS-y += arch/$(ARCH)/lib/
553 LIBS-y += drivers/dma/
554 LIBS-y += drivers/gpio/
555 LIBS-y += drivers/i2c/
556 LIBS-y += drivers/input/
557 LIBS-y += drivers/mmc/
558 LIBS-y += drivers/mtd/
559 LIBS-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
560 LIBS-y += drivers/mtd/onenand/
561 LIBS-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
562 LIBS-y += drivers/mtd/spi/
563 LIBS-y += drivers/net/
564 LIBS-y += drivers/net/phy/
565 LIBS-y += drivers/pci/
566 LIBS-y += drivers/power/ \
567 drivers/power/fuel_gauge/ \
569 drivers/power/pmic/ \
570 drivers/power/battery/
571 LIBS-y += drivers/spi/
572 LIBS-$(CONFIG_FMAN_ENET) += drivers/net/fm/
573 LIBS-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
574 LIBS-y += drivers/serial/
575 LIBS-y += drivers/usb/eth/
576 LIBS-y += drivers/usb/gadget/
577 LIBS-y += drivers/usb/host/
578 LIBS-y += drivers/usb/musb/
579 LIBS-y += drivers/usb/musb-new/
580 LIBS-y += drivers/usb/phy/
581 LIBS-y += drivers/usb/ulpi/
583 LIBS-y += lib/libfdt/
584 LIBS-$(CONFIG_API) += api/
585 LIBS-$(CONFIG_HAS_POST) += post/
588 ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
589 LIBS-y += arch/$(ARCH)/imx-common/
592 LIBS-$(CONFIG_ARM) += arch/arm/cpu/
593 LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
595 LIBS-y += board/$(BOARDDIR)/
597 LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
598 LIBS := $(sort $(LIBS-y))
602 ifdef USE_PRIVATE_LIBGCC
603 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
604 PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/lib.a
606 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
609 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
611 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
614 # Special flags for CPP when processing the linker script.
615 # Pass the version down so we can handle backwards compatibility
618 -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
620 $(shell $(LD) --version | \
621 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
623 #########################################################################
624 #########################################################################
626 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
628 @actual=`wc -c $@ | awk '{print $$1}'`; \
629 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
630 if test $$actual -gt $$limit; then \
631 echo "$@ exceeds file size limit:" >&2 ; \
632 echo " limit: $$limit bytes" >&2 ; \
633 echo " actual: $$actual bytes" >&2 ; \
634 echo " excess: $$((actual - limit)) bytes" >&2; \
641 # Statically apply RELA-style relocations (currently arm64 only)
642 ifneq ($(CONFIG_STATIC_RELA),)
643 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
645 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
646 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
647 tools/relocate-rela $(2) $(3) $$start $$end
652 # Always append ALL so that arch config.mk's can add custom ones
653 ALL-y += u-boot.srec u-boot.bin System.map
655 ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin
656 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
657 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
658 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
659 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
660 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
661 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
662 ifneq ($(CONFIG_SPL_TARGET),)
663 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
665 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
667 # enable combined SPL/u-boot/dtb rules for tegra
668 ifneq ($(CONFIG_TEGRA),)
669 ifeq ($(CONFIG_SPL),y)
670 ifeq ($(CONFIG_OF_SEPARATE),y)
671 ALL-y += u-boot-dtb-tegra.bin
673 ALL-y += u-boot-nodtb-tegra.bin
678 all: $(ALL-y) $(SUBDIR_EXAMPLES-y)
680 u-boot.dtb: checkdtc u-boot
681 $(MAKE) $(build)=dts binary
684 u-boot-dtb.bin: u-boot.bin u-boot.dtb
688 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
691 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@
694 $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
695 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
700 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
703 u-boot.ldr.hex: u-boot.ldr
704 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
706 u-boot.ldr.srec: u-boot.ldr
707 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
710 # U-Boot entry point, needed for booting of full-blown U-Boot
711 # from the SPL U-Boot version.
713 ifndef CONFIG_SYS_UBOOT_START
714 CONFIG_SYS_UBOOT_START := 0
717 u-boot.img: u-boot.bin
718 tools/mkimage -A $(ARCH) -T firmware -C none \
719 -O u-boot -a $(CONFIG_SYS_TEXT_BASE) \
720 -e $(CONFIG_SYS_UBOOT_START) \
721 -n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \
722 sed -e 's/"[ ]*$$/ for $(BOARD) board"/') \
725 u-boot.imx: u-boot.bin depend
726 $(MAKE) $(build)=arch/arm/imx-common $(objtree)/u-boot.imx
728 u-boot.kwb: u-boot.bin
729 tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \
730 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
732 u-boot.pbl: u-boot.bin
733 tools/mkimage -n $(CONFIG_SYS_FSL_PBL_RCW) \
734 -R $(CONFIG_SYS_FSL_PBL_PBI) -T pblimage \
737 u-boot.sha1: u-boot.bin
738 tools/ubsha1 u-boot.bin
741 $(OBJDUMP) -d $< > $@
743 # $@ is output, $(1) and $(2) are inputs, $(3) is padded intermediate,
746 $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(4) -I binary -O binary \
748 cat $(3) $(2) > $@; \
752 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
754 SPL_PAYLOAD := u-boot.bin
757 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD)
758 $(call SPL_PAD_APPEND,$<,$(SPL_PAYLOAD),spl/u-boot-spl-pad.bin,$(CONFIG_SPL_PAD_TO))
760 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin
761 $(call SPL_PAD_APPEND,$<,u-boot.bin,tpl/u-boot-tpl-pad.bin,$(CONFIG_TPL_PAD_TO))
763 u-boot-with-spl.imx: spl/u-boot-spl.bin u-boot.bin
764 $(MAKE) $(build)=arch/arm/imx-common \
765 $(OBJTREE)/u-boot-with-spl.imx
767 u-boot-with-nand-spl.imx: spl/u-boot-spl.bin u-boot.bin
768 $(MAKE) $(build)=arch/arm/imx-common \
769 $(OBJTREE)/u-boot-with-nand-spl.imx
771 u-boot.ubl: u-boot-with-spl.bin
772 tools/mkimage -n $(UBL_CONFIG) -T ublimage \
773 -e $(CONFIG_SYS_TEXT_BASE) -d $< u-boot.ubl
775 u-boot.ais: spl/u-boot-spl.bin u-boot.img
776 tools/mkimage -s -n $(if $(CONFIG_AIS_CONFIG_FILE),$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
778 -e $(CONFIG_SPL_TEXT_BASE) \
779 -d spl/u-boot-spl.bin \
781 $(OBJCOPY) ${OBJCFLAGS} -I binary \
782 --pad-to=$(CONFIG_SPL_MAX_SIZE) -O binary \
783 spl/u-boot-spl.ais spl/u-boot-spl-pad.ais
784 cat spl/u-boot-spl-pad.ais u-boot.img > u-boot.ais
787 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
788 $(MAKE) $(build)=$(CPUDIR)/$(SOC)/ $(OBJTREE)/u-boot.sb
790 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
791 # Both images are created using mkimage (crc etc), so that the ROM
792 # bootloader can check its integrity. Padding needs to be done to the
793 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
794 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
795 # The resulting image containing both U-Boot images is called u-boot.spr
796 u-boot.spr: u-boot.img spl/u-boot-spl.bin
797 tools/mkimage -A $(ARCH) -T firmware -C none \
798 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
799 -d spl/u-boot-spl.bin $@
800 $(OBJCOPY) -I binary -O binary \
801 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff $@
804 ifneq ($(CONFIG_TEGRA),)
805 u-boot-nodtb-tegra.bin: spl/u-boot-spl.bin u-boot.bin
806 $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SYS_TEXT_BASE) -O binary spl/u-boot-spl spl/u-boot-spl-pad.bin
807 cat spl/u-boot-spl-pad.bin u-boot.bin > $@
808 rm spl/u-boot-spl-pad.bin
810 ifeq ($(CONFIG_OF_SEPARATE),y)
811 u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin u-boot.dtb
812 cat u-boot-nodtb-tegra.bin u-boot.dtb > $@
816 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img
817 cat spl/u-boot-spl.bin u-boot.img > $@
819 # PPC4xx needs the SPL at the end of the image, since the reset vector
820 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
821 # and need to introduce a new build target with the full blown U-Boot
822 # at the start padded up to the start of the SPL image. And then concat
823 # the SPL image to the end.
824 u-boot-img-spl-at-end.bin: spl/u-boot-spl.bin u-boot.img
825 $(OBJCOPY) -I binary -O binary --pad-to=$(CONFIG_UBOOT_PAD_TO) \
826 --gap-fill=0xff u-boot.img $@
827 cat spl/u-boot-spl.bin >> $@
829 # Create a new ELF from a raw binary file. This is useful for arm64
830 # where static relocation needs to be performed on the raw binary,
831 # but certain simulators only accept an ELF file (but don't do the
833 # FIXME refactor dts/Makefile to share target/arch detection
834 u-boot.elf: u-boot.bin
835 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \
837 @$(LD) u-boot-elf.o -o $@ \
838 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
839 -Ttext=$(CONFIG_SYS_TEXT_BASE)
841 ifeq ($(CONFIG_SANDBOX),y)
843 $(CC) $(SYMS) -T u-boot.lds \
844 -Wl,--start-group $(LIBS) -Wl,--end-group \
845 $(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -o u-boot
848 $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
850 --start-group $(LIBS) --end-group $(PLATFORM_LIBS) \
851 -Map u-boot.map -o u-boot
854 u-boot: depend $(SUBDIR_TOOLS) $(OBJS) $(LIBS) u-boot.lds
856 ifeq ($(CONFIG_KALLSYMS),y)
857 smap=`$(call SYSTEM_MAP,u-boot) | \
858 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
859 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
860 -c $(srctree)/common/system_map.c -o common/system_map.o
861 $(GEN_UBOOT) common/system_map.o
867 $(LIBS): depend $(SUBDIR_TOOLS) scripts_basic
868 $(Q)$(MAKE) $(build)=$(patsubst %/,%,$(dir $@))
870 $(SUBDIRS): depend scripts_basic
871 $(Q)$(MAKE) $(build)=$@
873 $(SUBDIR_EXAMPLES-y): u-boot
875 u-boot.lds: $(LDSCRIPT) depend
876 $(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
878 nand_spl: $(TIMESTAMP_FILE) $(VERSION_FILE) depend scripts_basic
879 $(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all
881 u-boot-nand.bin: nand_spl u-boot.bin
882 cat nand_spl/u-boot-spl-16k.bin u-boot.bin > u-boot-nand.bin
884 spl/u-boot-spl.bin: $(SUBDIR_TOOLS) depend scripts_basic
885 $(MAKE) obj=spl -f $(srctree)/spl/Makefile all
887 tpl/u-boot-tpl.bin: $(SUBDIR_TOOLS) depend scripts_basic
888 $(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y
890 # Explicitly make _depend in subdirs containing multiple targets to prevent
891 # parallel sub-makes creating .depend files simultaneously.
892 depend dep: $(TIMESTAMP_FILE) $(VERSION_FILE) \
893 include/generated/generic-asm-offsets.h \
894 include/generated/asm-offsets.h
896 TAG_SUBDIRS = $(SUBDIRS)
897 TAG_SUBDIRS += $(dir $(LIBS))
898 TAG_SUBDIRS += include
906 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
907 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
910 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
911 -name '*.[chS]' -print`
914 etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
915 -name '*.[chS]' -print`
917 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
923 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
926 @$(call SYSTEM_MAP,$<) > $@
929 @if test $(call cc-version) -lt 0404; then \
930 echo -n '*** Your GCC does not produce working '; \
931 echo 'binaries in THUMB mode.'; \
932 echo '*** Your board is configured for THUMB mode.'; \
936 # GCC 3.x is reported to have problems generating the type of relocation
938 # See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
940 @if test $(call cc-version) -lt 0400; then \
941 echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
946 @if test $(call dtc-version) -lt 0104; then \
947 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
952 # Auto-generate the autoconf.mk file (which is included by all makefiles)
954 # This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
955 # the dep file is only include in this top level makefile to determine when
956 # to regenerate the autoconf.mk file.
958 quiet_cmd_autoconf_dep = GEN $@
959 cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \
960 -MQ include/autoconf.mk $(srctree)/include/common.h > $@ || rm $@
962 include/autoconf.mk.dep: include/config.h include/common.h
963 $(call cmd,autoconf_dep)
965 quiet_cmd_autoconf = GEN $@
971 include/autoconf.mk: include/config.h
974 quiet_cmd_offsets = GEN $@
975 cmd_offsets = $(srctree)/tools/scripts/make-asm-offsets $< $@
977 include/generated/generic-asm-offsets.h: lib/asm-offsets.s
980 quiet_cmd_asm-offsets.s = CC $@
981 cmd_asm-offsets.s = mkdir -p lib; \
982 $(CC) -DDO_DEPS_ONLY \
983 $(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
986 lib/asm-offsets.s: $(srctree)/lib/asm-offsets.c include/config.h
987 $(call cmd,asm-offsets.s)
989 include/generated/asm-offsets.h: $(CPUDIR)/$(SOC)/asm-offsets.s
992 quiet_cmd_soc_asm-offsets.s = CC $@
993 cmd_soc_asm-offsets.s = mkdir -p $(CPUDIR)/$(SOC); \
994 if [ -f $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c ];then \
995 $(CC) -DDO_DEPS_ONLY \
996 $(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
997 -o $@ $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \
1002 $(CPUDIR)/$(SOC)/asm-offsets.s: include/config.h
1003 $(call cmd,soc_asm-offsets.s)
1005 #########################################################################
1007 all u-boot.hex u-boot.srec u-boot.bin \
1008 u-boot.img u-boot.dis u-boot \
1009 $(filter-out tools,$(SUBDIRS)) \
1010 depend dep tags ctags etags cscope System.map:
1011 @echo "System not configured - see README" >&2
1014 tools: $(VERSION_FILE) $(TIMESTAMP_FILE)
1015 $(MAKE) $(build)=$@ all
1018 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1019 # R_AARCH64_RELATIVE (64-bit).
1020 checkarmreloc: u-boot
1021 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1022 grep R_A | sort -u`"; \
1023 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1024 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1025 echo "$< contains unexpected relocations: $$RELOC"; \
1030 @mkdir -p $(dir $(VERSION_FILE))
1031 @( localvers='$(shell $(TOPDIR)/scripts/setlocalversion $(TOPDIR))' ; \
1032 printf '#define PLAIN_VERSION "%s%s"\n' \
1033 "$(U_BOOT_VERSION)" "$${localvers}" ; \
1034 printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' \
1035 "$(U_BOOT_VERSION)" "$${localvers}" ; \
1037 @( printf '#define CC_VERSION_STRING "%s"\n' \
1039 @( printf '#define LD_VERSION_STRING "%s"\n' \
1044 @mkdir -p $(dir $(TIMESTAMP_FILE))
1050 $(Q)$(MAKE) $(build)=tools/$@ MTD_VERSION=${MTD_VERSION}
1054 xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
1055 $(Q)$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) $(build)=doc/DocBook $@
1057 tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
1058 $(Q)$(MAKE) $(build)=tools HOST_TOOLS_ALL=y
1062 git log --no-merges U-Boot-1_1_5.. | \
1063 unexpand -a | sed -e 's/\s\s*$$//' > $@
1065 include/license.h: tools/bin2header COPYING
1066 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1067 #########################################################################
1070 @rm -f include/config.h include/config.mk \
1071 board/*/config.tmp board/*/*/config.tmp \
1072 include/autoconf.mk include/autoconf.mk.dep \
1073 include/spl-autoconf.mk \
1074 include/tpl-autoconf.mk
1077 @$(MKCONFIG) -A $(@:_config=)
1079 #########################################################################
1082 @rm -f examples/standalone/atmel_df_pow2 \
1083 examples/standalone/hello_world \
1084 examples/standalone/interrupt \
1085 examples/standalone/mem_to_mem_idma2intr \
1086 examples/standalone/sched \
1087 $(addprefix examples/standalone/, smc91111_eeprom smc911x_eeprom) \
1088 examples/standalone/test_burst \
1089 examples/standalone/timer
1090 @rm -f $(addprefix examples/api/, demo demo.bin)
1091 @rm -f tools/bmp_logo tools/easylogo/easylogo \
1092 tools/env/fw_printenv \
1094 $(addprefix tools/gdb/, gdbcont gdbsend) \
1095 tools/gen_eth_addr tools/img2srec \
1097 $(addprefix tools/, mkenvimage mkimage) \
1099 $(addprefix tools/, mk$(BOARD)spl mkexynosspl) \
1101 tools/ncb tools/ubsha1 \
1102 tools/kernel-doc/docproc \
1104 @rm -f $(addprefix board/cray/L1/, bootscript.c bootscript.image) \
1105 board/matrix_vision/*/bootscript.img \
1106 spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl \
1108 $(addprefix arch/blackfin/cpu/, init.lds init.elf)
1109 @rm -f include/bmp_logo.h
1110 @rm -f include/bmp_logo_data.h
1111 @rm -f lib/asm-offsets.s
1112 @rm -f include/generated/asm-offsets.h
1113 @rm -f $(CPUDIR)/$(SOC)/asm-offsets.s
1114 @rm -f $(TIMESTAMP_FILE) $(VERSION_FILE)
1115 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile cleandocs
1116 @find $(OBJTREE) -type f \
1117 \( -name 'core' -o -name '*.bak' -o -name '*~' -o -name '*.su' \
1118 -o -name '*.o' -o -name '*.a' -o -name '*.exe' -o -name '*.cmd' \
1119 -o -name '*.cfgtmp' \) -print \
1123 @find $(OBJTREE) -type f \( -name '*.srec' \
1124 -o -name '*.bin' -o -name u-boot.img \) \
1125 -print0 | xargs -0 rm -f
1126 @rm -f $(OBJS) *.bak ctags etags TAGS \
1128 @rm -f u-boot u-boot.map u-boot.hex $(ALL-y)
1132 @rm -f u-boot-with-spl.imx
1133 @rm -f u-boot-with-nand-spl.imx
1139 @rm -f $(addprefix nand_spl/, u-boot.lds u-boot.lst System.map)
1140 @rm -f $(addprefix nand_spl/, u-boot-nand_spl.lds u-boot-spl u-boot-spl.map)
1141 @rm -f $(addprefix spl/, u-boot-spl u-boot-spl.bin u-boot-spl.map)
1142 @rm -f spl/u-boot-spl.lds
1143 @rm -f $(addprefix tpl/, u-boot-tpl u-boot-tpl.bin u-boot-tpl.map)
1144 @rm -f tpl/u-boot-spl.lds
1145 @rm -f MLO MLO.byteswap
1147 @rm -f tools/xway-swap-bytes
1148 @rm -fr include/asm/proc include/asm/arch include/asm
1149 @rm -fr include/generated
1150 @[ ! -d nand_spl ] || find nand_spl -name "*" -type l -print | xargs rm -f
1152 @rm -f $(addprefix spl/, u-boot-spl.ais, u-boot-spl-pad.ais)
1155 distclean: clobber unconfig
1156 ifneq ($(OBJTREE),$(SRCTREE))
1161 F=`basename $(TOPDIR)` ; cd .. ; \
1162 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1164 #########################################################################
1166 endif # skip-makefile
1171 # Declare the contents of the .PHONY variable as phony. We keep that
1172 # information in a variable so we can use it in if_changed and friends.