2 # SPDX-License-Identifier: GPL-2.0+
12 # To see a list of typical targets execute "make help"
13 # More info can be located in ./README
14 # Comments in this file are targeted only to the developer, do not
15 # expect to learn how to build the kernel reading this file.
17 # o Do not use make's built-in rules and variables
18 # (this increases performance and avoids hard-to-debug behaviour);
19 # o Look for make include files relative to root of kernel src
20 MAKEFLAGS
+= -rR
--include-dir
=$(CURDIR
)
22 # Avoid funny character set dependencies
26 export LC_COLLATE LC_NUMERIC
28 # Avoid interference with shell env settings
31 # We are using a recursive build, so we need to do a little thinking
32 # to get the ordering right.
34 # Most importantly: sub-Makefiles should only ever modify files in
35 # their own directory. If in some directory we have a dependency on
36 # a file in another dir (which doesn't happen often, but it's often
37 # unavoidable when linking the built-in.o targets which finally
38 # turn into vmlinux), we will call a sub make in that other dir, and
39 # after that we are sure that everything which is in that other dir
42 # The only cases where we need to modify files which have global
43 # effects are thus separated out and done before the recursive
44 # descending is started. They are now explicitly listed as the
48 # ---------------------------------------------------------------------------
50 # Normally, we echo the whole command before executing it. By making
51 # that echo $($(quiet)$(cmd)), we now have the possibility to set
52 # $(quiet) to choose other forms of output instead, e.g.
54 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
55 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
57 # If $(quiet) is empty, the whole command will be printed.
58 # If it is set to "quiet_", only the short version will be printed.
59 # If it is set to "silent_", nothing will be printed at all, since
60 # the variable $(silent_cmd_cc_o_c) doesn't exist.
62 # A simple variant is to prefix commands with $(Q) - that's useful
63 # for commands that shall be hidden in non-verbose mode.
67 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
68 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
70 # To put more focus on warnings, be less verbose as default
71 # Use 'make V=1' to see the full commands
73 ifeq ("$(origin V)", "command line")
80 ifeq ($(KBUILD_VERBOSE
),1)
88 # If the user is running make -s (silent mode), suppress echoing of
91 ifneq ($(filter 4.
%,$(MAKE_VERSION
)),) # make-4
92 ifneq ($(filter %s
,$(firstword x
$(MAKEFLAGS
))),)
96 ifneq ($(filter s
% -s
%,$(MAKEFLAGS
)),)
101 export quiet Q KBUILD_VERBOSE
103 # kbuild supports saving output files in a separate directory.
104 # To locate output files in a separate directory two syntaxes are supported.
105 # In both cases the working directory must be the root of the kernel src.
107 # Use "make O=dir/to/store/output/files/"
109 # 2) Set KBUILD_OUTPUT
110 # Set the environment variable KBUILD_OUTPUT to point to the directory
111 # where the output files shall be placed.
112 # export KBUILD_OUTPUT=dir/to/store/output/files/
115 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
118 # KBUILD_SRC is set on invocation of make in OBJ directory
119 # KBUILD_SRC is not intended to be used by the regular user (for now)
120 ifeq ($(KBUILD_SRC
),)
122 # OK, Make called in directory where kernel src resides
123 # Do we want to locate output files in a separate directory?
124 ifeq ("$(origin O)", "command line")
125 KBUILD_OUTPUT
:= $(O
)
128 # That's our default target when none is given on the command line
132 # Cancel implicit rules on top Makefile
133 $(CURDIR
)/Makefile Makefile
: ;
135 ifneq ($(KBUILD_OUTPUT
),)
136 # Invoke a second make in the output directory, passing relevant variables
137 # check that the output directory actually exists
138 saved-output
:= $(KBUILD_OUTPUT
)
139 KBUILD_OUTPUT
:= $(shell mkdir
-p
$(KBUILD_OUTPUT
) && cd
$(KBUILD_OUTPUT
) \
141 $(if
$(KBUILD_OUTPUT
),, \
142 $(error failed to create output directory
"$(saved-output)"))
144 PHONY
+= $(MAKECMDGOALS
) sub-make
146 $(filter-out _all sub-make
$(CURDIR
)/Makefile
, $(MAKECMDGOALS
)) _all
: sub-make
150 $(Q
)$(MAKE
) -C
$(KBUILD_OUTPUT
) KBUILD_SRC
=$(CURDIR
) \
151 -f
$(CURDIR
)/Makefile
$(filter-out _all sub-make
,$(MAKECMDGOALS
))
153 # Leave processing to above invocation of make
155 endif # ifneq ($(KBUILD_OUTPUT),)
156 endif # ifeq ($(KBUILD_SRC),)
158 # We process the rest of the Makefile if this is the final invocation of make
159 ifeq ($(skip-makefile
),)
161 # Do not print "Entering directory ...",
162 # but we want to display it when entering to the output directory
163 # so that IDEs/editors are able to understand relative filenames.
164 MAKEFLAGS
+= --no-print-directory
166 # Call a source code checker (by default, "sparse") as part of the
169 # Use 'make C=1' to enable checking of only re-compiled files.
170 # Use 'make C=2' to enable checking of *all* source files, regardless
171 # of whether they are re-compiled or not.
173 # See the file "Documentation/sparse.txt" for more details, including
174 # where to get the "sparse" utility.
176 ifeq ("$(origin C)", "command line")
177 KBUILD_CHECKSRC
= $(C
)
179 ifndef KBUILD_CHECKSRC
183 # Use make M=dir to specify directory of external module to build
184 # Old syntax make ... SUBDIRS=$PWD is still supported
185 # Setting the environment variable KBUILD_EXTMOD take precedence
187 KBUILD_EXTMOD ?
= $(SUBDIRS
)
190 ifeq ("$(origin M)", "command line")
191 KBUILD_EXTMOD
:= $(M
)
194 # If building an external module we do not care about the all: rule
195 # but instead _all depend on modules
197 ifeq ($(KBUILD_EXTMOD
),)
203 ifeq ($(KBUILD_SRC
),)
204 # building in the source tree
207 ifeq ($(KBUILD_SRC
)/,$(dir $(CURDIR
)))
208 # building in a subdirectory of the source tree
211 srctree
:= $(KBUILD_SRC
)
218 VPATH
:= $(srctree
)$(if
$(KBUILD_EXTMOD
),:$(KBUILD_EXTMOD
))
220 export srctree objtree VPATH
222 # Make sure CDPATH settings don't interfere
225 #########################################################################
227 HOSTARCH
:= $(shell uname
-m | \
229 -e s
/sun4u
/sparc64
/ \
232 -e s
/ppc64
/powerpc
/ \
234 -e s
/macppc
/powerpc
/\
237 HOSTOS
:= $(shell uname
-s | tr
'[:upper:]' '[:lower:]' | \
238 sed
-e
's/\(cygwin\).*/cygwin/')
240 export HOSTARCH HOSTOS
242 #########################################################################
244 # set default to nothing for native builds
245 ifeq ($(HOSTARCH
),$(ARCH
))
249 KCONFIG_CONFIG ?
= .config
250 export KCONFIG_CONFIG
252 # SHELL used by kbuild
253 CONFIG_SHELL
:= $(shell if
[ -x
"$$BASH" ]; then echo
$$BASH; \
254 else if
[ -x
/bin
/bash
]; then echo
/bin
/bash
; \
255 else echo sh
; fi
; fi
)
259 HOSTCFLAGS
= -Wall
-Wstrict-prototypes
-O2
-fomit-frame-pointer \
260 $(if
$(CONFIG_TOOLS_DEBUG
),-g
)
263 ifeq ($(HOSTOS
),cygwin
)
267 # Mac OS X / Darwin's C preprocessor is Apple specific. It
268 # generates numerous errors and warnings. We want to bypass it
269 # and use GNU C's cpp. To do this we pass the -traditional-cpp
270 # option to the compiler. Note that the -traditional-cpp flag
271 # DOES NOT have the same semantics as GNU C's flag, all it does
272 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
274 # Apple's linker is similar, thanks to the new 2 stage linking
275 # multiple symbol definitions are treated as errors, hence the
276 # -multiply_defined suppress option to turn off this error.
278 ifeq ($(HOSTOS
),darwin
)
279 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
280 DARWIN_MAJOR_VERSION
= $(shell sw_vers
-productVersion | cut
-f
1 -d
'.')
281 DARWIN_MINOR_VERSION
= $(shell sw_vers
-productVersion | cut
-f
2 -d
'.')
283 os_x_before
= $(shell if
[ $(DARWIN_MAJOR_VERSION
) -le
$(1) -a \
284 $(DARWIN_MINOR_VERSION
) -le
$(2) ] ; then echo
"$(3)"; else echo
"$(4)"; fi
;)
286 # Snow Leopards build environment has no longer restrictions as described above
287 HOSTCC
= $(call os_x_before
, 10, 5, "cc", "gcc")
288 HOSTCFLAGS
+= $(call os_x_before
, 10, 4, "-traditional-cpp")
289 HOSTLDFLAGS
+= $(call os_x_before
, 10, 5, "-multiply_defined suppress")
291 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
292 # in some host tools which is a problem then ... so disable ASLR for these
294 HOSTLDFLAGS
+= $(call os_x_before
, 10, 7, "", "-Xlinker -no_pie")
297 # Decide whether to build built-in, modular, or both.
298 # Normally, just do built-in.
303 # If we have only "make modules", don't compile built-in objects.
304 # When we're building modules with modversions, we need to consider
305 # the built-in objects during the descend as well, in order to
306 # make sure the checksums are up to date before we record them.
308 ifeq ($(MAKECMDGOALS
),modules
)
309 KBUILD_BUILTIN
:= $(if
$(CONFIG_MODVERSIONS
),1)
312 # If we have "make <whatever> modules", compile modules
313 # in addition to whatever we do anyway.
314 # Just "make" or "make all" shall build modules as well
316 # U-Boot does not need modules
317 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
318 # KBUILD_MODULES := 1
321 #ifeq ($(MAKECMDGOALS),)
322 # KBUILD_MODULES := 1
325 export KBUILD_MODULES KBUILD_BUILTIN
326 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
328 # We need some generic definitions (do not try to remake the file).
329 scripts
/Kbuild.
include: ;
330 include scripts
/Kbuild.
include
332 # Make variables (CC, etc...)
334 AS
= $(CROSS_COMPILE
)as
336 ifneq ($(shell $(CROSS_COMPILE
)ld.bfd
-v
2> /dev
/null
),)
337 LD
= $(CROSS_COMPILE
)ld.bfd
339 LD
= $(CROSS_COMPILE
)ld
341 CC
= $(CROSS_COMPILE
)gcc
343 AR
= $(CROSS_COMPILE
)ar
344 NM
= $(CROSS_COMPILE
)nm
345 LDR
= $(CROSS_COMPILE
)ldr
346 STRIP
= $(CROSS_COMPILE
)strip
347 OBJCOPY
= $(CROSS_COMPILE
)objcopy
348 OBJDUMP
= $(CROSS_COMPILE
)objdump
355 CHECKFLAGS
:= -D__linux__
-Dlinux
-D__STDC__
-Dunix
-D__unix__ \
356 -Wbitwise
-Wno-return-void
-D__CHECK_ENDIAN__
$(CF
)
358 KBUILD_CPPFLAGS
:= -D__KERNEL__
-D__UBOOT__
360 KBUILD_CFLAGS
:= -Wall
-Wstrict-prototypes \
361 -Wno-format-security \
362 -fno-builtin
-ffreestanding
363 KBUILD_AFLAGS
:= -D__ASSEMBLY__
365 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
366 UBOOTRELEASE
= $(shell cat
include/config
/uboot.release
2> /dev
/null
)
367 UBOOTVERSION
= $(VERSION
)$(if
$(PATCHLEVEL
),.
$(PATCHLEVEL
)$(if
$(SUBLEVEL
),.
$(SUBLEVEL
)))$(EXTRAVERSION
)
369 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
370 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
371 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
372 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
373 export MAKE AWK PERL PYTHON
374 export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
376 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
377 export KBUILD_CFLAGS KBUILD_AFLAGS
379 # When compiling out-of-tree modules, put MODVERDIR in the module
380 # tree rather than in the kernel tree. The kernel tree might
382 export MODVERDIR
:= $(if
$(KBUILD_EXTMOD
),$(firstword $(KBUILD_EXTMOD
))/).tmp_versions
384 # Files to ignore in find ... statements
386 export RCS_FIND_IGNORE
:= \
( -name SCCS
-o
-name BitKeeper
-o
-name .svn
-o \
387 -name CVS
-o
-name .
pc -o
-name .hg
-o
-name .git \
) \
389 export RCS_TAR_IGNORE
:= --exclude SCCS
--exclude BitKeeper
--exclude .svn \
390 --exclude CVS
--exclude .
pc --exclude .hg
--exclude .git
392 # ===========================================================================
393 # Rules shared between *config targets and build targets
395 # Basic helpers built in scripts/
396 PHONY
+= scripts_basic
398 $(Q
)$(MAKE
) $(build
)=scripts
/basic
399 $(Q
)rm -f .tmp_quiet_recordmcount
401 # To avoid any implicit rule to kick in, define an empty command.
402 scripts
/basic
/%: scripts_basic
;
404 PHONY
+= outputmakefile
405 # outputmakefile generates a Makefile in the output directory, if using a
406 # separate output directory. This allows convenient use of make in the
409 ifneq ($(KBUILD_SRC
),)
410 $(Q
)ln
-fsn
$(srctree
) source
411 $(Q
)$(CONFIG_SHELL
) $(srctree
)/scripts
/mkmakefile \
412 $(srctree
) $(objtree
) $(VERSION
) $(PATCHLEVEL
)
415 # To make sure we do not include .config for any of the *config targets
416 # catch them early, and hand them over to scripts/kconfig/Makefile
417 # It is allowed to specify more targets when calling make, including
418 # mixing *config targets and build targets.
419 # For example 'make oldconfig all'.
420 # Detect when mixed targets is specified, and make a second invocation
421 # of make so .config is not included in this case either (for *config).
423 version_h
:= include/generated
/version_autogenerated.h
424 timestamp_h
:= include/generated
/timestamp_autogenerated.h
426 no-dot-config-targets
:= clean clobber mrproper
distclean \
427 help
%docs
check% coccicheck \
434 ifneq ($(filter $(no-dot-config-targets
), $(MAKECMDGOALS
)),)
435 ifeq ($(filter-out $(no-dot-config-targets
), $(MAKECMDGOALS
)),)
440 ifeq ($(KBUILD_EXTMOD
),)
441 ifneq ($(filter config
%config
,$(MAKECMDGOALS
)),)
443 ifneq ($(words $(MAKECMDGOALS
)),1)
449 ifeq ($(mixed-targets
),1)
450 # ===========================================================================
451 # We're called with mixed targets (*config and build targets).
452 # Handle them one by one.
454 PHONY
+= $(MAKECMDGOALS
) __build_one_by_one
456 $(filter-out __build_one_by_one
, $(MAKECMDGOALS
)): __build_one_by_one
461 for i in
$(MAKECMDGOALS
); do \
462 $(MAKE
) -f
$(srctree
)/Makefile
$$i; \
466 ifeq ($(config-targets
),1)
467 # ===========================================================================
468 # *config targets only - make sure prerequisites are updated, and descend
469 # in scripts/kconfig to make the *config target
471 KBUILD_DEFCONFIG
:= sandbox_defconfig
472 export KBUILD_DEFCONFIG KBUILD_KCONFIG
474 config
: scripts_basic outputmakefile FORCE
475 $(Q
)$(MAKE
) $(build
)=scripts
/kconfig
$@
477 %config
: scripts_basic outputmakefile FORCE
478 $(Q
)$(MAKE
) $(build
)=scripts
/kconfig
$@
481 # ===========================================================================
482 # Build targets only - this includes vmlinux, arch specific targets, clean
483 # targets and others. In general all targets except *config targets.
485 ifeq ($(dot-config
),1)
487 -include include/config
/auto.conf
489 # Read in dependencies to all Kconfig* files, make sure to run
490 # oldconfig if changes are detected.
491 -include include/config
/auto.conf.cmd
493 # To avoid any implicit rule to kick in, define an empty command
494 $(KCONFIG_CONFIG
) include/config
/auto.conf.cmd
: ;
496 # If .config is newer than include/config/auto.conf, someone tinkered
497 # with it and forgot to run make oldconfig.
498 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
499 # we execute the config step to be sure to catch updated Kconfig files
500 include/config
/%.conf
: $(KCONFIG_CONFIG
) include/config
/auto.conf.cmd
501 $(Q
)$(MAKE
) -f
$(srctree
)/Makefile silentoldconfig
502 @
# If the following part fails, include/config/auto.conf should be
503 @
# deleted so "make silentoldconfig" will be re-run on the next build.
504 $(Q
)$(MAKE
) -f
$(srctree
)/scripts
/Makefile.autoconf || \
505 { rm -f
include/config
/auto.conf
; false
; }
506 @
# include/config.h has been updated after "make silentoldconfig".
507 @
# We need to touch include/config/auto.conf so it gets newer
508 @
# than include/config.h.
509 @
# Otherwise, 'make silentoldconfig' would be invoked twice.
510 $(Q
)touch
include/config
/auto.conf
512 -include include/autoconf.mk
513 -include include/autoconf.mk.dep
515 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
516 # is up-to-date. When we switch to a different board configuration, old CONFIG
517 # macros are still remaining in include/config/auto.conf. Without the following
518 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
519 ifneq ($(wildcard $(KCONFIG_CONFIG
)),)
520 ifneq ($(wildcard include/config
/auto.conf
),)
521 autoconf_is_old
:= $(shell find .
-path .
/$(KCONFIG_CONFIG
) -newer \
522 include/config
/auto.conf
)
523 ifeq ($(autoconf_is_old
),)
525 include arch
/$(ARCH
)/Makefile
530 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
531 # that (or fail if absent). Otherwise, search for a linker script in a
535 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
536 ifdef CONFIG_SYS_LDSCRIPT
537 # need to strip off double quotes
538 LDSCRIPT
:= $(srctree
)/$(CONFIG_SYS_LDSCRIPT
:"%"=%)
542 # If there is no specified link script, we look in a number of places for it
544 ifeq ($(wildcard $(LDSCRIPT
)),)
545 LDSCRIPT
:= $(srctree
)/board
/$(BOARDDIR
)/u-boot.lds
547 ifeq ($(wildcard $(LDSCRIPT
)),)
548 LDSCRIPT
:= $(srctree
)/$(CPUDIR
)/u-boot.lds
550 ifeq ($(wildcard $(LDSCRIPT
)),)
551 LDSCRIPT
:= $(srctree
)/arch
/$(ARCH
)/cpu
/u-boot.lds
556 # Dummy target needed, because used as prerequisite
557 include/config
/auto.conf
: ;
558 endif # $(dot-config)
560 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
566 KBUILD_CFLAGS
+= $(call cc-option
,-fno-stack-protector
)
567 KBUILD_CFLAGS
+= $(call cc-option
,-fno-delete-null-pointer-checks
)
570 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
571 # option to the assembler.
574 # Report stack usage if supported
575 ifeq ($(shell $(CONFIG_SHELL
) $(srctree
)/scripts
/gcc-stack-usage.sh
$(CC
)),y
)
576 KBUILD_CFLAGS
+= -fstack-usage
579 KBUILD_CFLAGS
+= $(call cc-option
,-Wno-format-nonliteral
)
581 # turn jbsr into jsr for m68k
583 ifeq ($(findstring 3.4,$(shell $(CC
) --version
)),3.4)
584 KBUILD_AFLAGS
+= -Wa
,-gstabs
,-S
588 # Prohibit date/time macros, which would make the build non-deterministic
589 KBUILD_CFLAGS
+= $(call cc-option
,-Werror
=date-time
)
591 include scripts
/Makefile.extrawarn
593 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
594 KBUILD_CPPFLAGS
+= $(KCPPFLAGS
)
595 KBUILD_AFLAGS
+= $(KAFLAGS
)
596 KBUILD_CFLAGS
+= $(KCFLAGS
)
598 # Use UBOOTINCLUDE when you must reference the include/ directory.
599 # Needed to be compatible with the O= option
602 $(if
$(KBUILD_SRC
), -I
$(srctree
)/include) \
603 $(if
$(CONFIG_SYS_THUMB_BUILD
), $(if
$(CONFIG_HAS_THUMB2
),, \
604 -I
$(srctree
)/arch
/$(ARCH
)/thumb1
/include),) \
605 -I
$(srctree
)/arch
/$(ARCH
)/include \
606 -include $(srctree
)/include/linux
/kconfig.h
608 NOSTDINC_FLAGS
+= -nostdinc
-isystem
$(shell $(CC
) -print-file-name
=include)
609 CHECKFLAGS
+= $(NOSTDINC_FLAGS
)
612 cpp_flags
:= $(KBUILD_CPPFLAGS
) $(PLATFORM_CPPFLAGS
) $(UBOOTINCLUDE
) \
614 c_flags
:= $(KBUILD_CFLAGS
) $(cpp_flags
)
616 #########################################################################
617 # U-Boot objects....order is important (i.e. start must be first)
619 HAVE_VENDOR_COMMON_LIB
= $(if
$(wildcard $(srctree
)/board
/$(VENDOR
)/common
/Makefile
),y
,n
)
622 libs-
$(HAVE_VENDOR_COMMON_LIB
) += board
/$(VENDOR
)/common
/
623 libs-
$(CONFIG_OF_EMBED
) += dts
/
628 libs-y
+= drivers
/dma
/
629 libs-y
+= drivers
/gpio
/
630 libs-y
+= drivers
/i2c
/
631 libs-y
+= drivers
/mmc
/
632 libs-y
+= drivers
/mtd
/
633 libs-
$(CONFIG_CMD_NAND
) += drivers
/mtd
/nand
/
634 libs-y
+= drivers
/mtd
/onenand
/
635 libs-
$(CONFIG_CMD_UBI
) += drivers
/mtd
/ubi
/
636 libs-y
+= drivers
/mtd
/spi
/
637 libs-y
+= drivers
/net
/
638 libs-y
+= drivers
/net
/phy
/
639 libs-y
+= drivers
/pci
/
640 libs-y
+= drivers
/power
/ \
641 drivers
/power
/fuel_gauge
/ \
643 drivers
/power
/pmic
/ \
644 drivers
/power
/battery
/ \
645 drivers
/power
/regulator
/
646 libs-y
+= drivers
/spi
/
647 libs-
$(CONFIG_FMAN_ENET
) += drivers
/net
/fm
/
648 libs-
$(CONFIG_SYS_FSL_DDR
) += drivers
/ddr
/fsl
/
649 libs-
$(CONFIG_ALTERA_SDRAM
) += drivers
/ddr
/altera
/
650 libs-y
+= drivers
/serial
/
651 libs-y
+= drivers
/usb
/dwc3
/
652 libs-y
+= drivers
/usb
/common
/
653 libs-y
+= drivers
/usb
/emul
/
654 libs-y
+= drivers
/usb
/eth
/
655 libs-y
+= drivers
/usb
/gadget
/
656 libs-y
+= drivers
/usb
/gadget
/udc
/
657 libs-y
+= drivers
/usb
/host
/
658 libs-y
+= drivers
/usb
/musb
/
659 libs-y
+= drivers
/usb
/musb-new
/
660 libs-y
+= drivers
/usb
/phy
/
661 libs-y
+= drivers
/usb
/ulpi
/
664 libs-
$(CONFIG_API
) += api
/
665 libs-
$(CONFIG_HAS_POST
) += post
/
668 libs-
$(CONFIG_UT_ENV
) += test/env
/
670 libs-y
+= $(if
$(BOARDDIR
),board
/$(BOARDDIR
)/)
672 libs-y
:= $(sort $(libs-y
))
674 u-boot-dirs
:= $(patsubst %/,%,$(filter %/, $(libs-y
))) tools examples
676 u-boot-alldirs
:= $(sort $(u-boot-dirs
) $(patsubst %/,%,$(filter %/, $(libs-
))))
678 libs-y
:= $(patsubst %/, %/built-in.o
, $(libs-y
))
680 u-boot-init
:= $(head-y
)
681 u-boot-main
:= $(libs-y
)
685 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC
),y
)
686 PLATFORM_LIBGCC
= arch
/$(ARCH
)/lib
/lib.a
688 PLATFORM_LIBGCC
:= -L
$(shell dirname
`$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
690 PLATFORM_LIBS
+= $(PLATFORM_LIBGCC
)
692 export PLATFORM_LIBGCC
694 # Special flags for CPP when processing the linker script.
695 # Pass the version down so we can handle backwards compatibility
698 -include $(srctree
)/include/u-boot
/u-boot.lds.h \
700 $(shell $(LD
) --version | \
701 sed
-ne
's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
703 #########################################################################
704 #########################################################################
706 ifneq ($(CONFIG_BOARD_SIZE_LIMIT
),)
708 @actual
=`wc -c $@ | awk '{print $$1}'`; \
709 limit
=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
710 if
test $$actual -gt
$$limit; then \
711 echo
"$@ exceeds file size limit:" >&2 ; \
712 echo
" limit: $$limit bytes" >&2 ; \
713 echo
" actual: $$actual bytes" >&2 ; \
714 echo
" excess: $$((actual - limit)) bytes" >&2; \
721 # Statically apply RELA-style relocations (currently arm64 only)
722 ifneq ($(CONFIG_STATIC_RELA
),)
723 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
725 start
=$$($(NM
) $(1) | grep __rel_dyn_start | cut
-f
1 -d
' '); \
726 end
=$$($(NM
) $(1) | grep __rel_dyn_end | cut
-f
1 -d
' '); \
727 tools
/relocate-rela
$(2) $(3) $$start $$end
732 # Always append ALL so that arch config.mk's can add custom ones
733 ALL-y
+= u-boot.srec u-boot.bin u-boot.sym System.map u-boot.cfg binary_size_check
735 ALL-
$(CONFIG_ONENAND_U_BOOT
) += u-boot-onenand.bin
736 ifeq ($(CONFIG_SPL_FSL_PBL
),y
)
737 ALL-
$(CONFIG_RAMBOOT_PBL
) += u-boot-with-spl-pbl.bin
739 ifneq ($(CONFIG_SECURE_BOOT
), y
)
740 # For Secure Boot The Image needs to be signed and Header must also
741 # be included. So The image has to be built explicitly
742 ALL-
$(CONFIG_RAMBOOT_PBL
) += u-boot.pbl
745 ALL-
$(CONFIG_SPL
) += spl
/u-boot-spl.bin
746 ALL-
$(CONFIG_SPL_FRAMEWORK
) += u-boot.img
747 ALL-
$(CONFIG_TPL
) += tpl
/u-boot-tpl.bin
748 ALL-
$(CONFIG_OF_SEPARATE
) += u-boot.dtb
749 ifeq ($(CONFIG_SPL_FRAMEWORK
),y
)
750 ALL-
$(CONFIG_OF_SEPARATE
) += u-boot-dtb.img
752 ALL-
$(CONFIG_OF_HOSTFILE
) += u-boot.dtb
753 ifneq ($(CONFIG_SPL_TARGET
),)
754 ALL-
$(CONFIG_SPL
) += $(CONFIG_SPL_TARGET
:"%"=%)
756 ALL-
$(CONFIG_REMAKE_ELF
) += u-boot.elf
757 ALL-
$(CONFIG_EFI_APP
) += u-boot-app.efi
758 ALL-
$(CONFIG_EFI_STUB
) += u-boot-payload.efi
760 ifneq ($(BUILD_ROM
),)
761 ALL-
$(CONFIG_X86_RESET_VECTOR
) += u-boot.rom
764 # enable combined SPL/u-boot/dtb rules for tegra
765 ifeq ($(CONFIG_TEGRA
)$(CONFIG_SPL
),yy
)
766 ALL-y
+= u-boot-tegra.bin u-boot-nodtb-tegra.bin
767 ALL-
$(CONFIG_OF_SEPARATE
) += u-boot-dtb-tegra.bin
770 # Add optional build target if defined in board/cpu/soc headers
771 ifneq ($(CONFIG_BUILD_TARGET
),)
772 ALL-y
+= $(CONFIG_BUILD_TARGET
:"%"=%)
775 LDFLAGS_u-boot
+= $(LDFLAGS_FINAL
)
776 ifneq ($(CONFIG_SYS_TEXT_BASE
),)
777 LDFLAGS_u-boot
+= -Ttext
$(CONFIG_SYS_TEXT_BASE
)
780 # Normally we fill empty space with 0xff
781 quiet_cmd_objcopy
= OBJCOPY
$@
782 cmd_objcopy
= $(OBJCOPY
) --gap-fill
=0xff $(OBJCOPYFLAGS
) \
783 $(OBJCOPYFLAGS_
$(@F
)) $< $@
785 # Provide a version which does not do this, for use by EFI
786 quiet_cmd_zobjcopy
= OBJCOPY
$@
787 cmd_zobjcopy
= $(OBJCOPY
) $(OBJCOPYFLAGS
) $(OBJCOPYFLAGS_
$(@F
)) $< $@
789 quiet_cmd_efipayload
= OBJCOPY
$@
790 cmd_efipayload
= $(OBJCOPY
) -I binary
-O
$(EFIPAYLOAD_BFDTARGET
) -B
$(EFIPAYLOAD_BFDARCH
) $< $@
792 quiet_cmd_mkimage
= MKIMAGE
$@
793 cmd_mkimage
= $(objtree
)/tools
/mkimage
$(MKIMAGEFLAGS_
$(@F
)) -d
$< $@ \
794 $(if
$(KBUILD_VERBOSE
:1=), >/dev
/null
)
796 quiet_cmd_cat
= CAT
$@
797 cmd_cat
= cat
$(filter-out $(PHONY
), $^
) > $@
799 append
= cat
$(filter-out $< $(PHONY
), $^
) >> $@
801 quiet_cmd_pad_cat
= CAT
$@
802 cmd_pad_cat
= $(cmd_objcopy
) && $(append
) ||
rm -f
$@
805 ifeq ($(CONFIG_DM_I2C_COMPAT
)$(CONFIG_SANDBOX
),y
)
806 @echo
"===================== WARNING ======================"
807 @echo
"This board uses CONFIG_DM_I2C_COMPAT. Please remove"
808 @echo
"(possibly in a subsequent patch in your series)"
809 @echo
"before sending patches to the mailing list."
810 @echo
"===================================================="
816 dts
/dt.dtb
: checkdtc u-boot
817 $(Q
)$(MAKE
) $(build
)=dts dtbs
819 quiet_cmd_copy
= COPY
$@
822 ifeq ($(CONFIG_OF_SEPARATE
),y
)
823 u-boot-dtb.bin
: u-boot-nodtb.bin dts
/dt.dtb FORCE
824 $(call if_changed
,cat
)
826 u-boot.bin
: u-boot-dtb.bin FORCE
827 $(call if_changed
,copy
)
829 u-boot.bin
: u-boot-nodtb.bin FORCE
830 $(call if_changed
,copy
)
834 $(Q
)$(MAKE
) $(build
)=arch
/arm
/imx-common
$@
836 u-boot.dtb
: dts
/dt.dtb
839 OBJCOPYFLAGS_u-boot.hex
:= -O ihex
841 OBJCOPYFLAGS_u-boot.srec
:= -O srec
843 u-boot.hex u-boot.srec
: u-boot FORCE
844 $(call if_changed
,objcopy
)
846 OBJCOPYFLAGS_u-boot-nodtb.bin
:= -O binary \
847 $(if
$(CONFIG_X86_RESET_VECTOR
),-R .start16
-R .resetvec
)
849 binary_size_check
: u-boot-nodtb.bin FORCE
850 @file_size
=$(shell wc
-c u-boot-nodtb.bin | awk
'{print $$1}') ; \
851 map_size
=$(shell cat u-boot.map | \
852 awk
'/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
855 if
[ "" != "$$map_size" ]; then \
856 if
test $$map_size -ne
$$file_size; then \
857 echo
"u-boot.map shows a binary size of $$map_size" >&2 ; \
858 echo
" but u-boot-nodtb.bin shows $$file_size" >&2 ; \
863 u-boot-nodtb.bin
: u-boot FORCE
864 $(call if_changed
,objcopy
)
865 $(call DO_STATIC_RELA
,$<,$@
,$(CONFIG_SYS_TEXT_BASE
))
870 $(LDR
) -T
$(CONFIG_CPU
) -c
$@
$< $(LDR_FLAGS
)
873 OBJCOPYFLAGS_u-boot.ldr.hex
:= -I binary
-O ihex
875 OBJCOPYFLAGS_u-boot.ldr.srec
:= -I binary
-O srec
877 u-boot.ldr.hex u-boot.ldr.srec
: u-boot.ldr FORCE
878 $(call if_changed
,objcopy
)
881 # U-Boot entry point, needed for booting of full-blown U-Boot
882 # from the SPL U-Boot version.
884 ifndef CONFIG_SYS_UBOOT_START
885 CONFIG_SYS_UBOOT_START
:= 0
888 # Create a file containing the configuration options the image was built with
889 quiet_cmd_cpp_cfg
= CFG
$@
890 cmd_cpp_cfg
= $(CPP
) -Wp
,-MD
,$(depfile
) $(cpp_flags
) $(LDPPFLAGS
) -ansi \
891 -DDO_DEPS_ONLY
-D__ASSEMBLY__
-x assembler-with-cpp
-P
-dM
-E
-o
$@
$<
893 ifdef CONFIG_SPL_LOAD_FIT
894 MKIMAGEFLAGS_u-boot.img
= -f auto
-A
$(ARCH
) -T firmware
-C none
-O u-boot \
895 -a
$(CONFIG_SYS_TEXT_BASE
) -e
$(CONFIG_SYS_UBOOT_START
) \
896 -n
"U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
897 $(patsubst %,-b arch
/$(ARCH
)/dts
/%.dtb
,$(subst ",,$(CONFIG_OF_LIST)))
899 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
900 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
901 -n "U-Boot
$(UBOOTRELEASE
) for
$(BOARD
) board
"
904 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
906 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
907 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
909 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
910 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
912 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
913 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
915 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl: \
916 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
917 $(call if_changed,mkimage)
919 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
920 $(call if_changed,mkimage)
922 u-boot.sha1: u-boot.bin
923 tools/ubsha1 u-boot.bin
926 $(OBJDUMP) -d $< > $@
928 u-boot.cfg: include/config.h FORCE
929 $(call if_changed,cpp_cfg)
932 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
934 SPL_PAYLOAD := u-boot.bin
937 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
938 --pad-to=$(CONFIG_SPL_PAD_TO)
939 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
940 $(call if_changed,pad_cat)
942 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
944 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
945 $(call if_changed,mkimage)
947 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
949 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
950 $(call if_changed,objcopy)
952 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
954 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
955 $(call if_changed,objcopy)
957 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
958 $(call if_changed,cat)
960 CLEAN_FILES += lpc32xx-*
962 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
963 --pad-to=$(CONFIG_TPL_PAD_TO)
964 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
965 $(call if_changed,pad_cat)
967 SPL: spl/u-boot-spl.bin FORCE
968 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
970 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
971 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
973 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
975 u-boot.ubl: u-boot-with-spl.bin FORCE
976 $(call if_changed,mkimage)
978 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
979 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev
/null
") \
980 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
981 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
982 $(call if_changed,mkimage)
984 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
985 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
986 $(call if_changed,pad_cat)
988 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
989 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
990 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
991 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
993 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
994 # Both images are created using mkimage (crc etc), so that the ROM
995 # bootloader can check its integrity. Padding needs to be done to the
996 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
997 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
998 # The resulting image containing both U-Boot images is called u-boot.spr
999 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1000 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1001 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1002 $(call if_changed,mkimage)
1004 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1006 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1007 $(call if_changed,pad_cat)
1009 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1010 quiet_cmd_socboot = SOCBOOT $@
1011 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1012 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1013 u-boot.img > $@ || rm -f $@
1014 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1015 $(call if_changed,socboot)
1018 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1019 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1021 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1022 rom: u-boot.rom FORCE
1024 IFDTOOL=$(objtree)/tools/ifdtool
1025 IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb
1026 IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1)
1027 IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot-nodtb.bin
1028 IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin
1031 ifneq ($(CONFIG_HAVE_INTEL_ME),)
1032 IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin
1033 IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin
1036 ifneq ($(CONFIG_HAVE_MRC),)
1037 IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin
1040 ifneq ($(CONFIG_HAVE_FSP),)
1041 IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE)
1044 ifneq ($(CONFIG_HAVE_CMC),)
1045 IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE)
1048 ifneq ($(CONFIG_HAVE_VGA_BIOS),)
1049 IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE)
1052 ifneq ($(CONFIG_HAVE_REFCODE),)
1053 IFDTOOL_FLAGS += -w $(CONFIG_X86_REFCODE_ADDR):refcode.bin
1056 quiet_cmd_ifdtool = IFDTOOL $@
1057 cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp;
1058 ifneq ($(CONFIG_HAVE_INTEL_ME),)
1059 cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp;
1061 cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp;
1062 cmd_ifdtool += mv u-boot.tmp $@
1064 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1065 $(call if_changed,copy)
1067 quiet_cmd_ldr = LD $@
1068 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1069 $(filter-out FORCE,$^) -o $@
1071 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin FORCE \
1072 $(if $(CONFIG_HAVE_REFCODE),refcode.bin)
1073 $(call if_changed,ifdtool)
1075 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1076 u-boot-x86-16bit.bin: u-boot FORCE
1077 $(call if_changed,objcopy)
1080 ifneq ($(CONFIG_SUNXI),)
1081 OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \
1082 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1083 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE
1084 $(call if_changed,pad_cat)
1087 ifneq ($(CONFIG_TEGRA),)
1088 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1089 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1090 $(call if_changed,pad_cat)
1092 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1093 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1094 $(call if_changed,pad_cat)
1096 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1097 $(call if_changed,copy)
1100 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1101 u-boot-app.efi: u-boot FORCE
1102 $(call if_changed,zobjcopy)
1104 u-boot.bin.o: u-boot.bin FORCE
1105 $(call if_changed,efipayload)
1107 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1108 $(call if_changed_dep,cpp_lds)
1110 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1111 quiet_cmd_u-boot_payload ?= LD $@
1112 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1113 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1114 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1115 $(addprefix arch/$(ARCH)/lib/efi/,$(EFISTUB))
1117 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1118 $(call if_changed,u-boot_payload)
1120 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1121 u-boot-payload.efi: u-boot-payload FORCE
1122 $(call if_changed,zobjcopy)
1124 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1125 $(call if_changed,cat)
1127 #Add a target to create boot binary having SPL binary in PBI format
1128 #concatenated with u-boot binary. It is need by PowerPC SoC having
1129 #internal SRAM <= 512KB.
1130 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1131 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1132 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1134 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1135 $(call if_changed,mkimage)
1138 UBOOT_BINLOAD := u-boot.img
1140 UBOOT_BINLOAD := u-boot.bin
1143 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1146 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1147 $(call if_changed,pad_cat)
1149 # PPC4xx needs the SPL at the end of the image, since the reset vector
1150 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin
" target
1151 # and need to introduce a new build target with the full blown U-Boot
1152 # at the start padded up to the start of the SPL image. And then concat
1153 # the SPL image to the end.
1155 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1156 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1157 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1158 $(call if_changed,pad_cat)
1160 # Create a new ELF from a raw binary file. This is useful for arm64
1161 # where static relocation needs to be performed on the raw binary,
1162 # but certain simulators only accept an ELF file (but don't do the
1164 # FIXME refactor dts/Makefile to share target/arch detection
1165 u-boot.elf: u-boot.bin
1166 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \
1168 @$(LD) u-boot-elf.o -o $@ \
1169 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
1170 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1172 # Rule to link u-boot
1173 # May be overridden by arch/$(ARCH)/config.mk
1174 quiet_cmd_u-boot__ ?= LD $@
1175 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1176 -T u-boot.lds $(u-boot-init) \
1177 --start-group $(u-boot-main) --end-group \
1178 $(PLATFORM_LIBS) -Map u-boot.map
1180 quiet_cmd_smap = GEN common/system_map.o
1182 smap=`$(call SYSTEM_MAP,u-boot) | \
1183 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1184 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1185 -c $(srctree)/common/system_map.c -o common/system_map.o
1187 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1188 $(call if_changed,u-boot__)
1189 ifeq ($(CONFIG_KALLSYMS),y)
1191 $(call cmd,u-boot__) common/system_map.o
1194 quiet_cmd_sym ?= SYM $@
1195 cmd_sym ?= $(OBJDUMP) -t $< > $@
1196 u-boot.sym: u-boot FORCE
1197 $(call if_changed,sym)
1199 # The actual objects are generated when descending,
1200 # make sure no implicit rule kicks in
1201 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1203 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1204 # Preset locale variables to speed up the build process. Limit locale
1205 # tweaks to this spot to avoid wrong language settings when running
1206 # make menuconfig etc.
1207 # Error messages still appears in the original language
1209 PHONY += $(u-boot-dirs)
1210 $(u-boot-dirs): prepare scripts
1211 $(Q)$(MAKE) $(build)=$@
1214 # The "tools
" are needed early
1215 $(filter-out tools, $(u-boot-dirs)): tools
1216 # The "examples
" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1217 # is "yes
"), so compile examples after U-Boot is compiled.
1218 examples: $(filter-out examples, $(u-boot-dirs))
1220 define filechk_uboot.release
1221 echo "$(UBOOTVERSION
)$$($(CONFIG_SHELL
) $(srctree
)/scripts
/setlocalversion
$(srctree
))"
1224 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1225 include/config/uboot.release: include/config/auto.conf FORCE
1226 $(call filechk,uboot.release)
1229 # Things we need to do before we recursively start building the kernel
1230 # or the modules are listed in "prepare
".
1231 # A multi level approach is used. prepareN is processed before prepareN-1.
1232 # archprepare is used in arch Makefiles and when processed asm symlink,
1233 # version.h and scripts_basic is processed / created.
1235 # Listed in dependency order
1236 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1238 # prepare3 is used to check if we are building in a separate output directory,
1240 # 1) Check that make has not been executed in the kernel src $(srctree)
1241 prepare3: include/config/uboot.release
1242 ifneq ($(KBUILD_SRC),)
1243 @$(kecho) ' Using $(srctree) as source for U-Boot'
1244 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1245 echo >&2 " $(srctree
) is not
clean, please run
'make mrproper'"; \
1246 echo >&2 " in the
'$(srctree)' directory.
";\
1251 # prepare2 creates a makefile if using a separate output directory
1252 prepare2: prepare3 outputmakefile
1254 prepare1: prepare2 $(version_h) $(timestamp_h) \
1255 include/config/auto.conf
1256 ifeq ($(wildcard $(LDSCRIPT)),)
1257 @echo >&2 " Could not find linker script.
"
1261 archprepare: prepare1 scripts_basic
1263 prepare0: archprepare FORCE
1264 $(Q)$(MAKE) $(build)=.
1266 # All the preparing..
1269 # Generate some files
1270 # ---------------------------------------------------------------------------
1272 define filechk_version.h
1273 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1274 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1275 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1276 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1279 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1280 # The BSD date on the other hand behaves different and would produce errors
1281 # with the misused '-d' switch. Respect that and search a working date with
1282 # well known pre- and suffixes for the GNU variant of date.
1283 define filechk_timestamp.h
1284 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1285 SOURCE_DATE="@
$${SOURCE_DATE_EPOCH}"; \
1287 for date in gdate date.gnu date; do \
1288 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1290 if test -n "$${DATE}"; then \
1291 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b
%d
%C
%y
"'; \
1292 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T
"'; \
1293 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z
"'; \
1294 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m
/%d
/%Y
"'; \
1299 LC_ALL=C date +'#define U_BOOT_DATE "%b
%d
%C
%y
"'; \
1300 LC_ALL=C date +'#define U_BOOT_TIME "%T
"'; \
1301 LC_ALL=C date +'#define U_BOOT_TZ "%z
"'; \
1302 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m
/%d
/%Y
"'; \
1306 $(version_h): include/config/uboot.release FORCE
1307 $(call filechk,version.h)
1309 $(timestamp_h): $(srctree)/Makefile FORCE
1310 $(call filechk,timestamp.h)
1312 # ---------------------------------------------------------------------------
1313 quiet_cmd_cpp_lds = LDS $@
1314 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1315 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1317 u-boot.lds: $(LDSCRIPT) prepare FORCE
1318 $(call if_changed_dep,cpp_lds)
1320 spl/u-boot-spl.bin: spl/u-boot-spl
1322 spl/u-boot-spl: tools prepare \
1323 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1324 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1326 spl/sunxi-spl.bin: spl/u-boot-spl
1329 spl/u-boot-spl.sfp: spl/u-boot-spl
1332 spl/boot.bin: spl/u-boot-spl
1335 tpl/u-boot-tpl.bin: tools prepare
1336 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1338 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1344 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1345 -name '*.[chS]' -print`
1349 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1350 -name '*.[chS]' -print`
1352 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1358 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1361 @$(call SYSTEM_MAP,$<) > $@
1364 @if test $(call dtc-version) -lt 0104; then \
1365 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1369 #########################################################################
1371 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1372 # R_AARCH64_RELATIVE (64-bit).
1373 checkarmreloc: u-boot
1374 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1375 grep R_A | sort -u`"; \
1376 if test "$$RELOC" != "R_ARM_RELATIVE
" -a \
1377 "$$RELOC" != "R_AARCH64_RELATIVE
"; then \
1378 echo "$< contains unexpected relocations
: $$RELOC"; \
1383 $(Q)$(MAKE) $(build)=tools/$@
1385 tools-only: scripts_basic $(version_h) $(timestamp_h)
1386 $(Q)$(MAKE) $(build)=tools
1388 tools-all: export HOST_TOOLS_ALL=y
1389 tools-all: env tools ;
1391 cross_tools: export CROSS_BUILD_TOOLS=y
1392 cross_tools: tools ;
1396 git log --no-merges U-Boot-1_1_5.. | \
1397 unexpand -a | sed -e 's/\s\s*$$//' > $@
1399 #########################################################################
1402 # Cleaning is done on three levels.
1403 # make clean Delete most generated files
1404 # Leave enough to build external modules
1405 # make mrproper Delete the current configuration, and all generated files
1406 # make distclean Remove editor backup files, patch leftover files and the like
1408 # Directories & files removed with 'make clean'
1409 CLEAN_DIRS += $(MODVERDIR) \
1410 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1411 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1413 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h include/license.h \
1414 boot* u-boot* MLO* SPL System.map
1416 # Directories & files removed with 'make mrproper'
1417 MRPROPER_DIRS += include/config include/generated spl tpl \
1419 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1420 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1422 # clean - Delete most, but leave enough to build external modules
1424 clean: rm-dirs := $(CLEAN_DIRS)
1425 clean: rm-files := $(CLEAN_FILES)
1427 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1429 clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1431 PHONY += $(clean-dirs) clean archclean
1433 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1435 # TODO: Do not use *.cfgtmp
1436 clean: $(clean-dirs)
1439 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1440 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1441 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1442 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1443 -o -name '*.symtypes' -o -name 'modules.order' \
1444 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1445 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1446 -o -name '*.gcno' \) -type f -print | xargs rm -f
1448 # mrproper - Delete all generated files, including .config
1450 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1451 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1452 mrproper-dirs := $(addprefix _mrproper_,scripts)
1454 PHONY += $(mrproper-dirs) mrproper archmrproper
1456 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1458 mrproper: clean $(mrproper-dirs)
1461 @rm -f arch/*/include/asm/arch
1468 @find $(srctree) $(RCS_FIND_IGNORE) \
1469 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1470 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1471 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1472 -o -name '*.pyc' \) \
1473 -type f -print | xargs rm -f
1477 F=`basename $(srctree)` ; cd .. ; \
1478 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-
%m-
%d-
%T.
tar.gz
"` $$F
1481 @echo 'Cleaning targets:'
1482 @echo ' clean - Remove most generated files but keep the config'
1483 @echo ' mrproper - Remove all generated files + config + various backup files'
1484 @echo ' distclean - mrproper + remove editor backup and patch files'
1486 @echo 'Configuration targets:'
1487 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1489 @echo 'Other generic targets:'
1490 @echo ' all - Build all necessary images depending on configuration'
1491 @echo '* u-boot - Build the bare u-boot'
1492 @echo ' dir/ - Build all files in dir and below'
1493 @echo ' dir/file.[oisS] - Build specified target only'
1494 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1495 @echo ' (requires a recent binutils and recent build (System.map))'
1496 @echo ' tags/ctags - Generate ctags file for editors'
1497 @echo ' etags - Generate etags file for editors'
1498 @echo ' cscope - Generate cscope index'
1499 @echo ' ubootrelease - Output the release version string (use with make -s)'
1500 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1502 @echo 'Static analysers'
1503 @echo ' checkstack - Generate a list of stack hogs'
1505 @echo 'Documentation targets:'
1506 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1508 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1509 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1510 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1511 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1512 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1513 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1514 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1515 @echo ' 1: warnings which may be relevant and do not occur too often'
1516 @echo ' 2: warnings which occur quite often but may still be relevant'
1517 @echo ' 3: more obscure warnings, can most likely be ignored'
1518 @echo ' Multiple levels can be combined with W=12 or W=123'
1520 @echo 'Execute "make
" or "make
all" to build all targets marked with [*] '
1521 @echo 'For further info see the ./README file'
1524 # Documentation targets
1525 # ---------------------------------------------------------------------------
1526 %docs: scripts_basic FORCE
1527 $(Q)$(MAKE) $(build)=scripts build_docproc
1528 $(Q)$(MAKE) $(build)=doc/DocBook $@
1531 PHONY += prepare scripts
1535 endif #ifeq ($(config-targets),1)
1536 endif #ifeq ($(mixed-targets),1)
1538 PHONY += checkstack ubootrelease ubootversion
1541 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1542 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1545 @echo "$(UBOOTVERSION
)$$($(CONFIG_SHELL
) $(srctree
)/scripts
/setlocalversion
$(srctree
))"
1548 @echo $(UBOOTVERSION)
1551 # ---------------------------------------------------------------------------
1552 # Single targets are compatible with:
1553 # - build with mixed source and output
1554 # - build with separate output dir 'make O=...'
1555 # - external modules
1557 # target-dir => where to store outputfile
1558 # build-dir => directory in kernel source tree to use
1560 ifeq ($(KBUILD_EXTMOD),)
1561 build-dir = $(patsubst %/,%,$(dir $@))
1562 target-dir = $(dir $@)
1564 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1565 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1566 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1569 %.s: %.c prepare scripts FORCE
1570 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1571 %.i: %.c prepare scripts FORCE
1572 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1573 %.o: %.c prepare scripts FORCE
1574 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1575 %.lst: %.c prepare scripts FORCE
1576 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1577 %.s: %.S prepare scripts FORCE
1578 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1579 %.o: %.S prepare scripts FORCE
1580 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1581 %.symtypes: %.c prepare scripts FORCE
1582 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1585 /: prepare scripts FORCE
1587 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1588 $(build)=$(build-dir)
1589 %/: prepare scripts FORCE
1591 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1592 $(build)=$(build-dir)
1593 %.ko: prepare scripts FORCE
1595 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1596 $(build)=$(build-dir) $(@:.ko=.o)
1597 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1599 # FIXME Should go into a make.lib or something
1600 # ===========================================================================
1602 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1603 cmd_rmdirs = rm -rf $(rm-dirs)
1605 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1606 cmd_rmfiles = rm -f $(rm-files)
1608 # read all saved command lines
1610 targets := $(wildcard $(sort $(targets)))
1611 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1613 ifneq ($(cmd_files),)
1614 $(cmd_files): ; # Do not try to update included dependency files
1615 include $(cmd_files)
1618 endif # skip-makefile
1623 # Declare the contents of the .PHONY variable as phony. We keep that
1624 # information in a variable so we can use it in if_changed and friends.