2 # (C) Copyright 2000-2013
3 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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 #########################################################################
205 # Allow for silent builds
206 ifeq (,$(findstring s,$(MAKEFLAGS)))
212 # The "tools" are needed early, so put this first
213 # Don't include stuff already done in $(LIBS)
214 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
215 # is "yes"), so compile examples after U-Boot is compiled.
217 SUBDIRS = $(SUBDIR_TOOLS)
219 .PHONY : $(SUBDIRS) $(VERSION_FILE) $(TIMESTAMP_FILE)
221 ifeq (include/config.mk,$(wildcard include/config.mk))
223 # Include autoconf.mk before config.mk so that the config options are available
224 # to all top level build files. We need the dummy all: target to prevent the
225 # dependency target in autoconf.mk.dep from being the default.
227 sinclude include/autoconf.mk.dep
228 sinclude include/autoconf.mk
230 SUBDIR_EXAMPLES-y := examples/standalone
231 SUBDIR_EXAMPLES-$(CONFIG_API) += examples/api
232 ifndef CONFIG_SANDBOX
233 SUBDIRS += $(SUBDIR_EXAMPLES-y)
236 # load ARCH, BOARD, and CPU configuration
237 include include/config.mk
238 export ARCH CPU BOARD VENDOR SOC
240 # set default to nothing for native builds
241 ifeq ($(HOSTARCH),$(ARCH))
245 # SHELL used by kbuild
246 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
247 else if [ -x /bin/bash ]; then echo /bin/bash; \
248 else echo sh; fi ; fi)
251 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
253 ifeq ($(HOSTOS),cygwin)
257 # Mac OS X / Darwin's C preprocessor is Apple specific. It
258 # generates numerous errors and warnings. We want to bypass it
259 # and use GNU C's cpp. To do this we pass the -traditional-cpp
260 # option to the compiler. Note that the -traditional-cpp flag
261 # DOES NOT have the same semantics as GNU C's flag, all it does
262 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
264 # Apple's linker is similar, thanks to the new 2 stage linking
265 # multiple symbol definitions are treated as errors, hence the
266 # -multiply_defined suppress option to turn off this error.
268 ifeq ($(HOSTOS),darwin)
269 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
270 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
271 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
273 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
274 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
276 # Snow Leopards build environment has no longer restrictions as described above
277 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
278 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
279 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
282 # Decide whether to build built-in, modular, or both.
283 # Normally, just do built-in.
288 # If we have only "make modules", don't compile built-in objects.
289 # When we're building modules with modversions, we need to consider
290 # the built-in objects during the descend as well, in order to
291 # make sure the checksums are up to date before we record them.
293 ifeq ($(MAKECMDGOALS),modules)
294 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
297 # If we have "make <whatever> modules", compile modules
298 # in addition to whatever we do anyway.
299 # Just "make" or "make all" shall build modules as well
301 # U-Boot does not need modules
302 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
303 # KBUILD_MODULES := 1
306 #ifeq ($(MAKECMDGOALS),)
307 # KBUILD_MODULES := 1
310 export KBUILD_MODULES KBUILD_BUILTIN
311 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
314 # ---------------------------------------------------------------------------
316 # Normally, we echo the whole command before executing it. By making
317 # that echo $($(quiet)$(cmd)), we now have the possibility to set
318 # $(quiet) to choose other forms of output instead, e.g.
320 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
321 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
323 # If $(quiet) is empty, the whole command will be printed.
324 # If it is set to "quiet_", only the short version will be printed.
325 # If it is set to "silent_", nothing will be printed at all, since
326 # the variable $(silent_cmd_cc_o_c) doesn't exist.
328 # A simple variant is to prefix commands with $(Q) - that's useful
329 # for commands that shall be hidden in non-verbose mode.
333 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
334 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
336 ifeq ($(KBUILD_VERBOSE),1)
344 # If the user is running make -s (silent mode), suppress echoing of
347 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
351 export quiet Q KBUILD_VERBOSE
354 # Look for make include files relative to root of kernel src
355 MAKEFLAGS += --include-dir=$(srctree)
357 # We need some generic definitions (do not try to remake the file).
358 $(srctree)/scripts/Kbuild.include: ;
359 include $(srctree)/scripts/Kbuild.include
361 # Make variables (CC, etc...)
363 AS = $(CROSS_COMPILE)as
365 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
366 LD = $(CROSS_COMPILE)ld.bfd
368 LD = $(CROSS_COMPILE)ld
370 CC = $(CROSS_COMPILE)gcc
372 AR = $(CROSS_COMPILE)ar
373 NM = $(CROSS_COMPILE)nm
374 LDR = $(CROSS_COMPILE)ldr
375 STRIP = $(CROSS_COMPILE)strip
376 OBJCOPY = $(CROSS_COMPILE)objcopy
377 OBJDUMP = $(CROSS_COMPILE)objdump
379 RANLIB = $(CROSS_COMPILE)RANLIB
383 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
384 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
386 # Use UBOOTINCLUDE when you must reference the include/ directory.
387 # Needed to be compatible with the O= option
389 ifneq ($(OBJTREE),$(SRCTREE))
390 UBOOTINCLUDE += -I$(OBJTREE)/include
392 UBOOTINCLUDE += -I$(srctree)/include \
393 -I$(srctree)/arch/$(ARCH)/include
395 KBUILD_CPPFLAGS := -D__KERNEL__
397 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
398 -Wno-format-security \
399 -fno-builtin -ffreestanding
400 KBUILD_AFLAGS := -D__ASSEMBLY__
402 U_BOOT_VERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
404 export VERSION PATCHLEVEL SUBLEVEL U_BOOT_VERSION
405 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
406 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
408 export DTC CHECK CHECKFLAGS
410 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE
411 export KBUILD_CFLAGS KBUILD_AFLAGS
413 # When compiling out-of-tree modules, put MODVERDIR in the module
414 # tree rather than in the kernel tree. The kernel tree might
416 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
418 # Files to ignore in find ... statements
420 RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
421 -o -name .pc -o -name .hg -o -name .git \) -prune -o
422 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
423 --exclude CVS --exclude .pc --exclude .hg --exclude .git
425 # ===========================================================================
426 # Rules shared between *config targets and build targets
428 # Basic helpers built in scripts/
429 PHONY += scripts_basic
431 $(Q)$(MAKE) $(build)=scripts/basic
432 $(Q)rm -f .tmp_quiet_recordmcount
434 # To avoid any implicit rule to kick in, define an empty command.
435 scripts/basic/%: scripts_basic ;
438 KBUILD_CFLAGS += -Os #-fomit-frame-pointer
441 KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
444 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
447 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
448 # option to the assembler.
451 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
452 CHECKFLAGS += $(NOSTDINC_FLAGS)
454 # Report stack usage if supported
455 KBUILD_CFLAGS += $(call cc-option,-fstack-usage)
457 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
459 # turn jbsr into jsr for m68k
461 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
462 KBUILD_AFLAGS += -Wa,-gstabs,-S
466 # load other configuration
467 include $(TOPDIR)/config.mk
469 ifneq ($(CONFIG_SYS_TEXT_BASE),)
470 KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
473 export CONFIG_SYS_TEXT_BASE
475 LDFLAGS_u-boot += -T u-boot.lds $(LDFLAGS_FINAL)
476 ifneq ($(CONFIG_SYS_TEXT_BASE),)
477 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
480 # Targets which don't build the source code
481 NON_BUILD_TARGETS = backup clean clobber distclean mrproper tidy unconfig %_config
483 # Only do the generic board check when actually building, not configuring
484 ifeq ($(filter $(NON_BUILD_TARGETS),$(MAKECMDGOALS)),)
485 ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
486 ifneq ($(CONFIG_SYS_GENERIC_BOARD),)
487 CHECK_GENERIC_BOARD = $(error Your architecture does not support generic board. \
488 Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
494 cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
495 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
497 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
498 # that (or fail if absent). Otherwise, search for a linker script in a
501 LDSCRIPT_MAKEFILE_DIR = $(dir $(LDSCRIPT))
504 #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
505 ifdef CONFIG_SYS_LDSCRIPT
506 # need to strip off double quotes
507 LDSCRIPT := $(CONFIG_SYS_LDSCRIPT:"%"=%)
511 # If there is no specified link script, we look in a number of places for it
513 ifeq ($(CONFIG_NAND_U_BOOT),y)
514 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
515 ifeq ($(wildcard $(LDSCRIPT)),)
516 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
519 ifeq ($(wildcard $(LDSCRIPT)),)
520 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
522 ifeq ($(wildcard $(LDSCRIPT)),)
523 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds
525 ifeq ($(wildcard $(LDSCRIPT)),)
526 LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds
527 # We don't expect a Makefile here
528 LDSCRIPT_MAKEFILE_DIR =
530 ifeq ($(wildcard $(LDSCRIPT)),)
531 $(error could not find linker script)
535 #########################################################################
536 # U-Boot objects....order is important (i.e. start must be first)
538 head-y := $(CPUDIR)/start.o
539 head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
540 head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
544 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
547 LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
550 LIBS-y += $(CPUDIR)/$(SOC)/
552 LIBS-$(CONFIG_IXP4XX_NPE) += drivers/net/npe/
553 LIBS-$(CONFIG_OF_EMBED) += dts/
554 LIBS-y += arch/$(ARCH)/lib/
559 LIBS-y += drivers/dma/
560 LIBS-y += drivers/gpio/
561 LIBS-y += drivers/i2c/
562 LIBS-y += drivers/input/
563 LIBS-y += drivers/mmc/
564 LIBS-y += drivers/mtd/
565 LIBS-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
566 LIBS-y += drivers/mtd/onenand/
567 LIBS-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
568 LIBS-y += drivers/mtd/spi/
569 LIBS-y += drivers/net/
570 LIBS-y += drivers/net/phy/
571 LIBS-y += drivers/pci/
572 LIBS-y += drivers/power/ \
573 drivers/power/fuel_gauge/ \
575 drivers/power/pmic/ \
576 drivers/power/battery/
577 LIBS-y += drivers/spi/
578 LIBS-$(CONFIG_FMAN_ENET) += drivers/net/fm/
579 LIBS-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
580 LIBS-y += drivers/serial/
581 LIBS-y += drivers/usb/eth/
582 LIBS-y += drivers/usb/gadget/
583 LIBS-y += drivers/usb/host/
584 LIBS-y += drivers/usb/musb/
585 LIBS-y += drivers/usb/musb-new/
586 LIBS-y += drivers/usb/phy/
587 LIBS-y += drivers/usb/ulpi/
589 LIBS-y += lib/libfdt/
590 LIBS-$(CONFIG_API) += api/
591 LIBS-$(CONFIG_HAS_POST) += post/
594 ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
595 LIBS-y += arch/$(ARCH)/imx-common/
598 LIBS-$(CONFIG_ARM) += arch/arm/cpu/
599 LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
601 LIBS-y += board/$(BOARDDIR)/
603 LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
604 LIBS := $(sort $(LIBS-y))
608 ifdef USE_PRIVATE_LIBGCC
609 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
610 PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/lib.a
612 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
615 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
617 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
620 # Special flags for CPP when processing the linker script.
621 # Pass the version down so we can handle backwards compatibility
624 -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
626 $(shell $(LD) --version | \
627 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
629 #########################################################################
630 #########################################################################
632 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
634 @actual=`wc -c $@ | awk '{print $$1}'`; \
635 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
636 if test $$actual -gt $$limit; then \
637 echo "$@ exceeds file size limit:" >&2 ; \
638 echo " limit: $$limit bytes" >&2 ; \
639 echo " actual: $$actual bytes" >&2 ; \
640 echo " excess: $$((actual - limit)) bytes" >&2; \
647 # Statically apply RELA-style relocations (currently arm64 only)
648 ifneq ($(CONFIG_STATIC_RELA),)
649 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
651 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
652 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
653 tools/relocate-rela $(2) $(3) $$start $$end
658 # Always append ALL so that arch config.mk's can add custom ones
659 ALL-y += u-boot.srec u-boot.bin System.map
661 ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin
662 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
663 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
664 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
665 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
666 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
667 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
668 ifneq ($(CONFIG_SPL_TARGET),)
669 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
671 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
673 # enable combined SPL/u-boot/dtb rules for tegra
674 ifneq ($(CONFIG_TEGRA),)
675 ifeq ($(CONFIG_SPL),y)
676 ifeq ($(CONFIG_OF_SEPARATE),y)
677 ALL-y += u-boot-dtb-tegra.bin
679 ALL-y += u-boot-nodtb-tegra.bin
684 all: $(ALL-y) $(SUBDIR_EXAMPLES-y)
686 u-boot.dtb: checkdtc u-boot
687 $(MAKE) $(build)=dts binary
690 u-boot-dtb.bin: u-boot.bin u-boot.dtb
694 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
697 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@
700 $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
701 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
706 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
709 u-boot.ldr.hex: u-boot.ldr
710 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
712 u-boot.ldr.srec: u-boot.ldr
713 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
716 # U-Boot entry point, needed for booting of full-blown U-Boot
717 # from the SPL U-Boot version.
719 ifndef CONFIG_SYS_UBOOT_START
720 CONFIG_SYS_UBOOT_START := 0
723 u-boot.img: u-boot.bin
724 tools/mkimage -A $(ARCH) -T firmware -C none \
725 -O u-boot -a $(CONFIG_SYS_TEXT_BASE) \
726 -e $(CONFIG_SYS_UBOOT_START) \
727 -n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \
728 sed -e 's/"[ ]*$$/ for $(BOARD) board"/') \
731 u-boot.imx: u-boot.bin depend
732 $(MAKE) $(build)=arch/arm/imx-common $(objtree)/u-boot.imx
734 u-boot.kwb: u-boot.bin
735 tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \
736 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
738 u-boot.pbl: u-boot.bin
739 tools/mkimage -n $(CONFIG_SYS_FSL_PBL_RCW) \
740 -R $(CONFIG_SYS_FSL_PBL_PBI) -T pblimage \
743 u-boot.sha1: u-boot.bin
744 tools/ubsha1 u-boot.bin
747 $(OBJDUMP) -d $< > $@
749 # $@ is output, $(1) and $(2) are inputs, $(3) is padded intermediate,
752 $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(4) -I binary -O binary \
754 cat $(3) $(2) > $@; \
758 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
760 SPL_PAYLOAD := u-boot.bin
763 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD)
764 $(call SPL_PAD_APPEND,$<,$(SPL_PAYLOAD),spl/u-boot-spl-pad.bin,$(CONFIG_SPL_PAD_TO))
766 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin
767 $(call SPL_PAD_APPEND,$<,u-boot.bin,tpl/u-boot-tpl-pad.bin,$(CONFIG_TPL_PAD_TO))
769 u-boot-with-spl.imx: spl/u-boot-spl.bin u-boot.bin
770 $(MAKE) $(build)=arch/arm/imx-common \
771 $(OBJTREE)/u-boot-with-spl.imx
773 u-boot-with-nand-spl.imx: spl/u-boot-spl.bin u-boot.bin
774 $(MAKE) $(build)=arch/arm/imx-common \
775 $(OBJTREE)/u-boot-with-nand-spl.imx
777 u-boot.ubl: u-boot-with-spl.bin
778 tools/mkimage -n $(UBL_CONFIG) -T ublimage \
779 -e $(CONFIG_SYS_TEXT_BASE) -d $< u-boot.ubl
781 u-boot.ais: spl/u-boot-spl.bin u-boot.img
782 tools/mkimage -s -n $(if $(CONFIG_AIS_CONFIG_FILE),$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
784 -e $(CONFIG_SPL_TEXT_BASE) \
785 -d spl/u-boot-spl.bin \
787 $(OBJCOPY) ${OBJCFLAGS} -I binary \
788 --pad-to=$(CONFIG_SPL_MAX_SIZE) -O binary \
789 spl/u-boot-spl.ais spl/u-boot-spl-pad.ais
790 cat spl/u-boot-spl-pad.ais u-boot.img > u-boot.ais
793 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
794 $(MAKE) $(build)=$(CPUDIR)/$(SOC)/ $(OBJTREE)/u-boot.sb
796 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
797 # Both images are created using mkimage (crc etc), so that the ROM
798 # bootloader can check its integrity. Padding needs to be done to the
799 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
800 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
801 # The resulting image containing both U-Boot images is called u-boot.spr
802 u-boot.spr: u-boot.img spl/u-boot-spl.bin
803 tools/mkimage -A $(ARCH) -T firmware -C none \
804 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
805 -d spl/u-boot-spl.bin $@
806 $(OBJCOPY) -I binary -O binary \
807 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff $@
810 ifneq ($(CONFIG_TEGRA),)
811 u-boot-nodtb-tegra.bin: spl/u-boot-spl.bin u-boot.bin
812 $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SYS_TEXT_BASE) -O binary spl/u-boot-spl spl/u-boot-spl-pad.bin
813 cat spl/u-boot-spl-pad.bin u-boot.bin > $@
814 rm spl/u-boot-spl-pad.bin
816 ifeq ($(CONFIG_OF_SEPARATE),y)
817 u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin u-boot.dtb
818 cat u-boot-nodtb-tegra.bin u-boot.dtb > $@
822 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img
823 cat spl/u-boot-spl.bin u-boot.img > $@
825 # PPC4xx needs the SPL at the end of the image, since the reset vector
826 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
827 # and need to introduce a new build target with the full blown U-Boot
828 # at the start padded up to the start of the SPL image. And then concat
829 # the SPL image to the end.
830 u-boot-img-spl-at-end.bin: spl/u-boot-spl.bin u-boot.img
831 $(OBJCOPY) -I binary -O binary --pad-to=$(CONFIG_UBOOT_PAD_TO) \
832 --gap-fill=0xff u-boot.img $@
833 cat spl/u-boot-spl.bin >> $@
835 # Create a new ELF from a raw binary file. This is useful for arm64
836 # where static relocation needs to be performed on the raw binary,
837 # but certain simulators only accept an ELF file (but don't do the
839 # FIXME refactor dts/Makefile to share target/arch detection
840 u-boot.elf: u-boot.bin
841 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \
843 @$(LD) u-boot-elf.o -o $@ \
844 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
845 -Ttext=$(CONFIG_SYS_TEXT_BASE)
847 ifeq ($(CONFIG_SANDBOX),y)
849 $(CC) $(SYMS) -T u-boot.lds \
850 -Wl,--start-group $(LIBS) -Wl,--end-group \
851 $(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -o u-boot
854 $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
856 --start-group $(LIBS) --end-group $(PLATFORM_LIBS) \
857 -Map u-boot.map -o u-boot
860 u-boot: depend $(SUBDIR_TOOLS) $(OBJS) $(LIBS) u-boot.lds
862 ifeq ($(CONFIG_KALLSYMS),y)
863 smap=`$(call SYSTEM_MAP,u-boot) | \
864 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
865 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
866 -c $(srctree)/common/system_map.c -o common/system_map.o
867 $(GEN_UBOOT) common/system_map.o
873 $(LIBS): depend $(SUBDIR_TOOLS) scripts_basic
874 $(Q)$(MAKE) $(build)=$(patsubst %/,%,$(dir $@))
876 $(SUBDIRS): depend scripts_basic
877 $(Q)$(MAKE) $(build)=$@
879 $(SUBDIR_EXAMPLES-y): u-boot
881 u-boot.lds: $(LDSCRIPT) depend
882 $(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
884 nand_spl: $(TIMESTAMP_FILE) $(VERSION_FILE) depend scripts_basic
885 $(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all
887 u-boot-nand.bin: nand_spl u-boot.bin
888 cat nand_spl/u-boot-spl-16k.bin u-boot.bin > u-boot-nand.bin
890 spl/u-boot-spl.bin: $(SUBDIR_TOOLS) depend scripts_basic
891 $(MAKE) obj=spl -f $(srctree)/spl/Makefile all
893 tpl/u-boot-tpl.bin: $(SUBDIR_TOOLS) depend scripts_basic
894 $(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y
896 # Explicitly make _depend in subdirs containing multiple targets to prevent
897 # parallel sub-makes creating .depend files simultaneously.
898 depend dep: $(TIMESTAMP_FILE) $(VERSION_FILE) \
899 include/spl-autoconf.mk \
900 include/tpl-autoconf.mk \
901 include/autoconf.mk \
902 include/generated/generic-asm-offsets.h \
903 include/generated/asm-offsets.h
905 TAG_SUBDIRS = $(SUBDIRS)
906 TAG_SUBDIRS += $(dir $(LIBS))
907 TAG_SUBDIRS += include
913 $(CROSS_COMPILE)objdump -d u-boot \
914 `$(FIND) . -name u-boot-spl -print` | \
915 perl $(src)/scripts/checkstack.pl $(ARCH)
918 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
919 -name '*.[chS]' -print`
922 etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
923 -name '*.[chS]' -print`
925 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
931 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
934 @$(call SYSTEM_MAP,$<) > $@
937 @if test $(call cc-version) -lt 0404; then \
938 echo -n '*** Your GCC does not produce working '; \
939 echo 'binaries in THUMB mode.'; \
940 echo '*** Your board is configured for THUMB mode.'; \
944 # GCC 3.x is reported to have problems generating the type of relocation
946 # See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
948 @if test $(call cc-version) -lt 0400; then \
949 echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
954 @if test $(call dtc-version) -lt 0104; then \
955 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
960 # Auto-generate the autoconf.mk file (which is included by all makefiles)
962 # This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
963 # the dep file is only include in this top level makefile to determine when
964 # to regenerate the autoconf.mk file.
965 include/autoconf.mk.dep: include/config.h include/common.h
966 @$(XECHO) Generating $@ ; \
967 : Generate the dependancies ; \
968 $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \
969 -MQ include/autoconf.mk $(srctree)/include/common.h > $@ || \
972 include/autoconf.mk: include/config.h
973 @$(XECHO) Generating $@ ; \
974 : Extract the config macros ; \
975 $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
976 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
979 # Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL)
980 include/tpl-autoconf.mk: include/config.h
981 @$(XECHO) Generating $@ ; \
982 : Extract the config macros ; \
983 $(CPP) $(c_flags) -DCONFIG_TPL_BUILD -DCONFIG_SPL_BUILD\
984 -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
985 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
988 include/spl-autoconf.mk: include/config.h
989 @$(XECHO) Generating $@ ; \
990 : Extract the config macros ; \
991 $(CPP) $(c_flags) -DCONFIG_SPL_BUILD -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
992 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
995 include/generated/generic-asm-offsets.h: lib/asm-offsets.s
996 @$(XECHO) Generating $@
997 $(srctree)/tools/scripts/make-asm-offsets lib/asm-offsets.s $@
999 lib/asm-offsets.s: include/config.h $(srctree)/lib/asm-offsets.c
1001 $(CC) -DDO_DEPS_ONLY \
1002 $(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
1003 -o $@ $(srctree)/lib/asm-offsets.c -c -S
1005 include/generated/asm-offsets.h: $(CPUDIR)/$(SOC)/asm-offsets.s
1006 @$(XECHO) Generating $@
1007 $(srctree)/tools/scripts/make-asm-offsets $(CPUDIR)/$(SOC)/asm-offsets.s $@
1009 $(CPUDIR)/$(SOC)/asm-offsets.s: include/config.h
1010 @mkdir -p $(CPUDIR)/$(SOC)
1011 if [ -f $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c ];then \
1012 $(CC) -DDO_DEPS_ONLY \
1013 $(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
1014 -o $@ $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \
1019 #########################################################################
1021 all u-boot.hex u-boot.srec u-boot.bin \
1022 u-boot.img u-boot.dis u-boot \
1023 $(filter-out tools,$(SUBDIRS)) \
1024 depend dep tags ctags etags cscope System.map:
1025 @echo "System not configured - see README" >&2
1028 tools: $(VERSION_FILE) $(TIMESTAMP_FILE)
1029 $(MAKE) $(build)=$@ all
1032 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1033 # R_AARCH64_RELATIVE (64-bit).
1034 checkarmreloc: u-boot
1035 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1036 grep R_A | sort -u`"; \
1037 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1038 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1039 echo "$< contains unexpected relocations: $$RELOC"; \
1044 @mkdir -p $(dir $(VERSION_FILE))
1045 @( localvers='$(shell $(TOPDIR)/scripts/setlocalversion $(TOPDIR))' ; \
1046 printf '#define PLAIN_VERSION "%s%s"\n' \
1047 "$(U_BOOT_VERSION)" "$${localvers}" ; \
1048 printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' \
1049 "$(U_BOOT_VERSION)" "$${localvers}" ; \
1051 @( printf '#define CC_VERSION_STRING "%s"\n' \
1052 '$(shell $(CC) --version | head -n 1)' )>> $@.tmp
1053 @( printf '#define LD_VERSION_STRING "%s"\n' \
1054 '$(shell $(LD) -v | head -n 1)' )>> $@.tmp
1055 @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
1058 @mkdir -p $(dir $(TIMESTAMP_FILE))
1059 @LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > $@.tmp
1060 @LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp
1061 @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
1064 $(Q)$(MAKE) $(build)=tools/$@ MTD_VERSION=${MTD_VERSION}
1068 xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
1069 $(Q)$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) $(build)=doc/DocBook $@
1071 tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
1072 $(Q)$(MAKE) $(build)=tools HOST_TOOLS_ALL=y
1076 git log --no-merges U-Boot-1_1_5.. | \
1077 unexpand -a | sed -e 's/\s\s*$$//' > $@
1079 include/license.h: tools/bin2header COPYING
1080 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1081 #########################################################################
1084 @rm -f include/config.h include/config.mk \
1085 board/*/config.tmp board/*/*/config.tmp \
1086 include/autoconf.mk include/autoconf.mk.dep \
1087 include/spl-autoconf.mk \
1088 include/tpl-autoconf.mk
1091 @$(MKCONFIG) -A $(@:_config=)
1093 #########################################################################
1096 @rm -f examples/standalone/atmel_df_pow2 \
1097 examples/standalone/hello_world \
1098 examples/standalone/interrupt \
1099 examples/standalone/mem_to_mem_idma2intr \
1100 examples/standalone/sched \
1101 $(addprefix examples/standalone/, smc91111_eeprom smc911x_eeprom) \
1102 examples/standalone/test_burst \
1103 examples/standalone/timer
1104 @rm -f $(addprefix examples/api/, demo demo.bin)
1105 @rm -f tools/bmp_logo tools/easylogo/easylogo \
1106 tools/env/fw_printenv \
1108 $(addprefix tools/gdb/, gdbcont gdbsend) \
1109 tools/gen_eth_addr tools/img2srec \
1111 $(addprefix tools/, mkenvimage mkimage) \
1113 $(addprefix tools/, mk$(BOARD)spl mkexynosspl) \
1115 tools/ncb tools/ubsha1 \
1116 tools/kernel-doc/docproc \
1118 @rm -f $(addprefix board/cray/L1/, bootscript.c bootscript.image) \
1119 board/matrix_vision/*/bootscript.img \
1120 spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl \
1122 $(addprefix arch/blackfin/cpu/, init.lds init.elf)
1123 @rm -f include/bmp_logo.h
1124 @rm -f include/bmp_logo_data.h
1125 @rm -f lib/asm-offsets.s
1126 @rm -f include/generated/asm-offsets.h
1127 @rm -f $(CPUDIR)/$(SOC)/asm-offsets.s
1128 @rm -f $(TIMESTAMP_FILE) $(VERSION_FILE)
1129 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile cleandocs
1130 @find $(OBJTREE) -type f \
1131 \( -name 'core' -o -name '*.bak' -o -name '*~' -o -name '*.su' \
1132 -o -name '*.o' -o -name '*.a' -o -name '*.exe' -o -name '*.cmd' \
1133 -o -name '*.cfgtmp' \) -print \
1136 # Removes everything not needed for testing u-boot
1138 @find $(OBJTREE) -type f \( -name '*.depend*' \) -print | xargs rm -f
1141 @find $(OBJTREE) -type f \( -name '*.srec' \
1142 -o -name '*.bin' -o -name u-boot.img \) \
1143 -print0 | xargs -0 rm -f
1144 @rm -f $(OBJS) *.bak ctags etags TAGS \
1146 @rm -f u-boot u-boot.map u-boot.hex $(ALL-y)
1150 @rm -f u-boot-with-spl.imx
1151 @rm -f u-boot-with-nand-spl.imx
1157 @rm -f $(addprefix nand_spl/, u-boot.lds u-boot.lst System.map)
1158 @rm -f $(addprefix nand_spl/, u-boot-nand_spl.lds u-boot-spl u-boot-spl.map)
1159 @rm -f $(addprefix spl/, u-boot-spl u-boot-spl.bin u-boot-spl.map)
1160 @rm -f spl/u-boot-spl.lds
1161 @rm -f $(addprefix tpl/, u-boot-tpl u-boot-tpl.bin u-boot-tpl.map)
1162 @rm -f tpl/u-boot-spl.lds
1163 @rm -f MLO MLO.byteswap
1165 @rm -f tools/xway-swap-bytes
1166 @rm -fr include/asm/proc include/asm/arch include/asm
1167 @rm -fr include/generated
1168 @[ ! -d nand_spl ] || find nand_spl -name "*" -type l -print | xargs rm -f
1170 @rm -f $(addprefix spl/, u-boot-spl.ais, u-boot-spl-pad.ais)
1173 distclean: clobber unconfig
1174 ifneq ($(OBJTREE),$(SRCTREE))
1179 F=`basename $(TOPDIR)` ; cd .. ; \
1180 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1182 #########################################################################
1184 endif # skip-makefile
1189 # Declare the contents of the .PHONY variable as phony. We keep that
1190 # information in a variable so we can use it in if_changed and friends.