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
262 ifeq ($(HOSTOS
),cygwin
)
266 # Mac OS X / Darwin's C preprocessor is Apple specific. It
267 # generates numerous errors and warnings. We want to bypass it
268 # and use GNU C's cpp. To do this we pass the -traditional-cpp
269 # option to the compiler. Note that the -traditional-cpp flag
270 # DOES NOT have the same semantics as GNU C's flag, all it does
271 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
273 # Apple's linker is similar, thanks to the new 2 stage linking
274 # multiple symbol definitions are treated as errors, hence the
275 # -multiply_defined suppress option to turn off this error.
277 ifeq ($(HOSTOS
),darwin
)
278 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
279 DARWIN_MAJOR_VERSION
= $(shell sw_vers
-productVersion | cut
-f
1 -d
'.')
280 DARWIN_MINOR_VERSION
= $(shell sw_vers
-productVersion | cut
-f
2 -d
'.')
282 os_x_before
= $(shell if
[ $(DARWIN_MAJOR_VERSION
) -le
$(1) -a \
283 $(DARWIN_MINOR_VERSION
) -le
$(2) ] ; then echo
"$(3)"; else echo
"$(4)"; fi
;)
285 # Snow Leopards build environment has no longer restrictions as described above
286 HOSTCC
= $(call os_x_before
, 10, 5, "cc", "gcc")
287 HOSTCFLAGS
+= $(call os_x_before
, 10, 4, "-traditional-cpp")
288 HOSTLDFLAGS
+= $(call os_x_before
, 10, 5, "-multiply_defined suppress")
290 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
291 # in some host tools which is a problem then ... so disable ASLR for these
293 HOSTLDFLAGS
+= $(call os_x_before
, 10, 7, "", "-Xlinker -no_pie")
296 # Decide whether to build built-in, modular, or both.
297 # Normally, just do built-in.
302 # If we have only "make modules", don't compile built-in objects.
303 # When we're building modules with modversions, we need to consider
304 # the built-in objects during the descend as well, in order to
305 # make sure the checksums are up to date before we record them.
307 ifeq ($(MAKECMDGOALS
),modules
)
308 KBUILD_BUILTIN
:= $(if
$(CONFIG_MODVERSIONS
),1)
311 # If we have "make <whatever> modules", compile modules
312 # in addition to whatever we do anyway.
313 # Just "make" or "make all" shall build modules as well
315 # U-Boot does not need modules
316 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
317 # KBUILD_MODULES := 1
320 #ifeq ($(MAKECMDGOALS),)
321 # KBUILD_MODULES := 1
324 export KBUILD_MODULES KBUILD_BUILTIN
325 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
327 # We need some generic definitions (do not try to remake the file).
328 scripts
/Kbuild.
include: ;
329 include scripts
/Kbuild.
include
331 # Make variables (CC, etc...)
333 AS
= $(CROSS_COMPILE
)as
335 ifneq ($(shell $(CROSS_COMPILE
)ld.bfd
-v
2> /dev
/null
),)
336 LD
= $(CROSS_COMPILE
)ld.bfd
338 LD
= $(CROSS_COMPILE
)ld
340 CC
= $(CROSS_COMPILE
)gcc
342 AR
= $(CROSS_COMPILE
)ar
343 NM
= $(CROSS_COMPILE
)nm
344 LDR
= $(CROSS_COMPILE
)ldr
345 STRIP
= $(CROSS_COMPILE
)strip
346 OBJCOPY
= $(CROSS_COMPILE
)objcopy
347 OBJDUMP
= $(CROSS_COMPILE
)objdump
354 CHECKFLAGS
:= -D__linux__
-Dlinux
-D__STDC__
-Dunix
-D__unix__ \
355 -Wbitwise
-Wno-return-void
-D__CHECK_ENDIAN__
$(CF
)
357 KBUILD_CPPFLAGS
:= -D__KERNEL__
-D__UBOOT__
359 KBUILD_CFLAGS
:= -Wall
-Wstrict-prototypes \
360 -Wno-format-security \
361 -fno-builtin
-ffreestanding
362 KBUILD_AFLAGS
:= -D__ASSEMBLY__
364 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
365 UBOOTRELEASE
= $(shell cat
include/config
/uboot.release
2> /dev
/null
)
366 UBOOTVERSION
= $(VERSION
)$(if
$(PATCHLEVEL
),.
$(PATCHLEVEL
)$(if
$(SUBLEVEL
),.
$(SUBLEVEL
)))$(EXTRAVERSION
)
368 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
369 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
370 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
371 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
372 export MAKE AWK PERL PYTHON
373 export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
375 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
376 export KBUILD_CFLAGS KBUILD_AFLAGS
378 # When compiling out-of-tree modules, put MODVERDIR in the module
379 # tree rather than in the kernel tree. The kernel tree might
381 export MODVERDIR
:= $(if
$(KBUILD_EXTMOD
),$(firstword $(KBUILD_EXTMOD
))/).tmp_versions
383 # Files to ignore in find ... statements
385 export RCS_FIND_IGNORE
:= \
( -name SCCS
-o
-name BitKeeper
-o
-name .svn
-o \
386 -name CVS
-o
-name .
pc -o
-name .hg
-o
-name .git \
) \
388 export RCS_TAR_IGNORE
:= --exclude SCCS
--exclude BitKeeper
--exclude .svn \
389 --exclude CVS
--exclude .
pc --exclude .hg
--exclude .git
391 # ===========================================================================
392 # Rules shared between *config targets and build targets
394 # Basic helpers built in scripts/
395 PHONY
+= scripts_basic
397 $(Q
)$(MAKE
) $(build
)=scripts
/basic
398 $(Q
)rm -f .tmp_quiet_recordmcount
400 # To avoid any implicit rule to kick in, define an empty command.
401 scripts
/basic
/%: scripts_basic
;
403 PHONY
+= outputmakefile
404 # outputmakefile generates a Makefile in the output directory, if using a
405 # separate output directory. This allows convenient use of make in the
408 ifneq ($(KBUILD_SRC
),)
409 $(Q
)ln
-fsn
$(srctree
) source
410 $(Q
)$(CONFIG_SHELL
) $(srctree
)/scripts
/mkmakefile \
411 $(srctree
) $(objtree
) $(VERSION
) $(PATCHLEVEL
)
414 # To make sure we do not include .config for any of the *config targets
415 # catch them early, and hand them over to scripts/kconfig/Makefile
416 # It is allowed to specify more targets when calling make, including
417 # mixing *config targets and build targets.
418 # For example 'make oldconfig all'.
419 # Detect when mixed targets is specified, and make a second invocation
420 # of make so .config is not included in this case either (for *config).
422 version_h
:= include/generated
/version_autogenerated.h
423 timestamp_h
:= include/generated
/timestamp_autogenerated.h
425 no-dot-config-targets
:= clean clobber mrproper
distclean \
426 help
%docs
check% coccicheck \
433 ifneq ($(filter $(no-dot-config-targets
), $(MAKECMDGOALS
)),)
434 ifeq ($(filter-out $(no-dot-config-targets
), $(MAKECMDGOALS
)),)
439 ifeq ($(KBUILD_EXTMOD
),)
440 ifneq ($(filter config
%config
,$(MAKECMDGOALS
)),)
442 ifneq ($(words $(MAKECMDGOALS
)),1)
448 ifeq ($(mixed-targets
),1)
449 # ===========================================================================
450 # We're called with mixed targets (*config and build targets).
451 # Handle them one by one.
453 PHONY
+= $(MAKECMDGOALS
) __build_one_by_one
455 $(filter-out __build_one_by_one
, $(MAKECMDGOALS
)): __build_one_by_one
460 for i in
$(MAKECMDGOALS
); do \
461 $(MAKE
) -f
$(srctree
)/Makefile
$$i; \
465 ifeq ($(config-targets
),1)
466 # ===========================================================================
467 # *config targets only - make sure prerequisites are updated, and descend
468 # in scripts/kconfig to make the *config target
470 KBUILD_DEFCONFIG
:= sandbox_defconfig
471 export KBUILD_DEFCONFIG KBUILD_KCONFIG
473 config
: scripts_basic outputmakefile FORCE
474 $(Q
)$(MAKE
) $(build
)=scripts
/kconfig
$@
476 %config
: scripts_basic outputmakefile FORCE
477 $(Q
)$(MAKE
) $(build
)=scripts
/kconfig
$@
480 # ===========================================================================
481 # Build targets only - this includes vmlinux, arch specific targets, clean
482 # targets and others. In general all targets except *config targets.
484 ifeq ($(dot-config
),1)
486 -include include/config
/auto.conf
488 # Read in dependencies to all Kconfig* files, make sure to run
489 # oldconfig if changes are detected.
490 -include include/config
/auto.conf.cmd
492 # To avoid any implicit rule to kick in, define an empty command
493 $(KCONFIG_CONFIG
) include/config
/auto.conf.cmd
: ;
495 # If .config is newer than include/config/auto.conf, someone tinkered
496 # with it and forgot to run make oldconfig.
497 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
498 # we execute the config step to be sure to catch updated Kconfig files
499 include/config
/%.conf
: $(KCONFIG_CONFIG
) include/config
/auto.conf.cmd
500 $(Q
)$(MAKE
) -f
$(srctree
)/Makefile silentoldconfig
501 @
# If the following part fails, include/config/auto.conf should be
502 @
# deleted so "make silentoldconfig" will be re-run on the next build.
503 $(Q
)$(MAKE
) -f
$(srctree
)/scripts
/Makefile.autoconf || \
504 { rm -f
include/config
/auto.conf
; false
; }
505 @
# include/config.h has been updated after "make silentoldconfig".
506 @
# We need to touch include/config/auto.conf so it gets newer
507 @
# than include/config.h.
508 @
# Otherwise, 'make silentoldconfig' would be invoked twice.
509 $(Q
)touch
include/config
/auto.conf
511 -include include/autoconf.mk
512 -include include/autoconf.mk.dep
514 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
515 # is up-to-date. When we switch to a different board configuration, old CONFIG
516 # macros are still remaining in include/config/auto.conf. Without the following
517 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
518 ifneq ($(wildcard $(KCONFIG_CONFIG
)),)
519 ifneq ($(wildcard include/config
/auto.conf
),)
520 autoconf_is_old
:= $(shell find .
-path .
/$(KCONFIG_CONFIG
) -newer \
521 include/config
/auto.conf
)
522 ifeq ($(autoconf_is_old
),)
524 include arch
/$(ARCH
)/Makefile
529 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
530 # that (or fail if absent). Otherwise, search for a linker script in a
534 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
535 ifdef CONFIG_SYS_LDSCRIPT
536 # need to strip off double quotes
537 LDSCRIPT
:= $(srctree
)/$(CONFIG_SYS_LDSCRIPT
:"%"=%)
541 # If there is no specified link script, we look in a number of places for it
543 ifeq ($(wildcard $(LDSCRIPT
)),)
544 LDSCRIPT
:= $(srctree
)/board
/$(BOARDDIR
)/u-boot.lds
546 ifeq ($(wildcard $(LDSCRIPT
)),)
547 LDSCRIPT
:= $(srctree
)/$(CPUDIR
)/u-boot.lds
549 ifeq ($(wildcard $(LDSCRIPT
)),)
550 LDSCRIPT
:= $(srctree
)/arch
/$(ARCH
)/cpu
/u-boot.lds
555 # Dummy target needed, because used as prerequisite
556 include/config
/auto.conf
: ;
557 endif # $(dot-config)
559 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
565 KBUILD_CFLAGS
+= $(call cc-option
,-fno-stack-protector
)
566 KBUILD_CFLAGS
+= $(call cc-option
,-fno-delete-null-pointer-checks
)
569 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
570 # option to the assembler.
573 # Report stack usage if supported
574 ifeq ($(shell $(CONFIG_SHELL
) $(srctree
)/scripts
/gcc-stack-usage.sh
$(CC
)),y
)
575 KBUILD_CFLAGS
+= -fstack-usage
578 KBUILD_CFLAGS
+= $(call cc-option
,-Wno-format-nonliteral
)
580 # turn jbsr into jsr for m68k
582 ifeq ($(findstring 3.4,$(shell $(CC
) --version
)),3.4)
583 KBUILD_AFLAGS
+= -Wa
,-gstabs
,-S
587 # Prohibit date/time macros, which would make the build non-deterministic
588 KBUILD_CFLAGS
+= $(call cc-option
,-Werror
=date-time
)
590 include scripts
/Makefile.extrawarn
592 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
593 KBUILD_CPPFLAGS
+= $(KCPPFLAGS
)
594 KBUILD_AFLAGS
+= $(KAFLAGS
)
595 KBUILD_CFLAGS
+= $(KCFLAGS
)
597 # Use UBOOTINCLUDE when you must reference the include/ directory.
598 # Needed to be compatible with the O= option
601 $(if
$(KBUILD_SRC
), -I
$(srctree
)/include) \
602 $(if
$(CONFIG_SYS_THUMB_BUILD
), $(if
$(CONFIG_HAS_THUMB2
),, \
603 -I
$(srctree
)/arch
/$(ARCH
)/thumb1
/include),) \
604 -I
$(srctree
)/arch
/$(ARCH
)/include \
605 -include $(srctree
)/include/linux
/kconfig.h
607 NOSTDINC_FLAGS
+= -nostdinc
-isystem
$(shell $(CC
) -print-file-name
=include)
608 CHECKFLAGS
+= $(NOSTDINC_FLAGS
)
611 cpp_flags
:= $(KBUILD_CPPFLAGS
) $(PLATFORM_CPPFLAGS
) $(UBOOTINCLUDE
) \
613 c_flags
:= $(KBUILD_CFLAGS
) $(cpp_flags
)
615 #########################################################################
616 # U-Boot objects....order is important (i.e. start must be first)
618 HAVE_VENDOR_COMMON_LIB
= $(if
$(wildcard $(srctree
)/board
/$(VENDOR
)/common
/Makefile
),y
,n
)
621 libs-
$(HAVE_VENDOR_COMMON_LIB
) += board
/$(VENDOR
)/common
/
622 libs-
$(CONFIG_OF_EMBED
) += dts
/
627 libs-y
+= drivers
/dma
/
628 libs-y
+= drivers
/gpio
/
629 libs-y
+= drivers
/i2c
/
630 libs-y
+= drivers
/mmc
/
631 libs-y
+= drivers
/mtd
/
632 libs-
$(CONFIG_CMD_NAND
) += drivers
/mtd
/nand
/
633 libs-y
+= drivers
/mtd
/onenand
/
634 libs-
$(CONFIG_CMD_UBI
) += drivers
/mtd
/ubi
/
635 libs-y
+= drivers
/mtd
/spi
/
636 libs-y
+= drivers
/net
/
637 libs-y
+= drivers
/net
/phy
/
638 libs-y
+= drivers
/pci
/
639 libs-y
+= drivers
/power
/ \
640 drivers
/power
/fuel_gauge
/ \
642 drivers
/power
/pmic
/ \
643 drivers
/power
/battery
/ \
644 drivers
/power
/regulator
/
645 libs-y
+= drivers
/spi
/
646 libs-
$(CONFIG_FMAN_ENET
) += drivers
/net
/fm
/
647 libs-
$(CONFIG_SYS_FSL_DDR
) += drivers
/ddr
/fsl
/
648 libs-
$(CONFIG_ALTERA_SDRAM
) += drivers
/ddr
/altera
/
649 libs-y
+= drivers
/serial
/
650 libs-y
+= drivers
/usb
/dwc3
/
651 libs-y
+= drivers
/usb
/common
/
652 libs-y
+= drivers
/usb
/emul
/
653 libs-y
+= drivers
/usb
/eth
/
654 libs-y
+= drivers
/usb
/gadget
/
655 libs-y
+= drivers
/usb
/gadget
/udc
/
656 libs-y
+= drivers
/usb
/host
/
657 libs-y
+= drivers
/usb
/musb
/
658 libs-y
+= drivers
/usb
/musb-new
/
659 libs-y
+= drivers
/usb
/phy
/
660 libs-y
+= drivers
/usb
/ulpi
/
663 libs-
$(CONFIG_API
) += api
/
664 libs-
$(CONFIG_HAS_POST
) += post
/
667 libs-
$(CONFIG_UT_ENV
) += test/env
/
669 libs-y
+= $(if
$(BOARDDIR
),board
/$(BOARDDIR
)/)
671 libs-y
:= $(sort $(libs-y
))
673 u-boot-dirs
:= $(patsubst %/,%,$(filter %/, $(libs-y
))) tools examples
675 u-boot-alldirs
:= $(sort $(u-boot-dirs
) $(patsubst %/,%,$(filter %/, $(libs-
))))
677 libs-y
:= $(patsubst %/, %/built-in.o
, $(libs-y
))
679 u-boot-init
:= $(head-y
)
680 u-boot-main
:= $(libs-y
)
684 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC
),y
)
685 PLATFORM_LIBGCC
= arch
/$(ARCH
)/lib
/lib.a
687 PLATFORM_LIBGCC
:= -L
$(shell dirname
`$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
689 PLATFORM_LIBS
+= $(PLATFORM_LIBGCC
)
691 export PLATFORM_LIBGCC
693 # Special flags for CPP when processing the linker script.
694 # Pass the version down so we can handle backwards compatibility
697 -include $(srctree
)/include/u-boot
/u-boot.lds.h \
699 $(shell $(LD
) --version | \
700 sed
-ne
's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
702 #########################################################################
703 #########################################################################
705 ifneq ($(CONFIG_BOARD_SIZE_LIMIT
),)
707 @actual
=`wc -c $@ | awk '{print $$1}'`; \
708 limit
=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
709 if
test $$actual -gt
$$limit; then \
710 echo
"$@ exceeds file size limit:" >&2 ; \
711 echo
" limit: $$limit bytes" >&2 ; \
712 echo
" actual: $$actual bytes" >&2 ; \
713 echo
" excess: $$((actual - limit)) bytes" >&2; \
720 # Statically apply RELA-style relocations (currently arm64 only)
721 ifneq ($(CONFIG_STATIC_RELA
),)
722 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
724 start
=$$($(NM
) $(1) | grep __rel_dyn_start | cut
-f
1 -d
' '); \
725 end
=$$($(NM
) $(1) | grep __rel_dyn_end | cut
-f
1 -d
' '); \
726 tools
/relocate-rela
$(2) $(3) $$start $$end
731 # Always append ALL so that arch config.mk's can add custom ones
732 ALL-y
+= u-boot.srec u-boot.bin u-boot.sym System.map u-boot.cfg binary_size_check
734 ALL-
$(CONFIG_ONENAND_U_BOOT
) += u-boot-onenand.bin
735 ifeq ($(CONFIG_SPL_FSL_PBL
),y
)
736 ALL-
$(CONFIG_RAMBOOT_PBL
) += u-boot-with-spl-pbl.bin
738 ifneq ($(CONFIG_SECURE_BOOT
), y
)
739 # For Secure Boot The Image needs to be signed and Header must also
740 # be included. So The image has to be built explicitly
741 ALL-
$(CONFIG_RAMBOOT_PBL
) += u-boot.pbl
744 ALL-
$(CONFIG_SPL
) += spl
/u-boot-spl.bin
745 ALL-
$(CONFIG_SPL_FRAMEWORK
) += u-boot.img
746 ALL-
$(CONFIG_TPL
) += tpl
/u-boot-tpl.bin
747 ALL-
$(CONFIG_OF_SEPARATE
) += u-boot.dtb
748 ifeq ($(CONFIG_SPL_FRAMEWORK
),y
)
749 ALL-
$(CONFIG_OF_SEPARATE
) += u-boot-dtb.img
751 ALL-
$(CONFIG_OF_HOSTFILE
) += u-boot.dtb
752 ifneq ($(CONFIG_SPL_TARGET
),)
753 ALL-
$(CONFIG_SPL
) += $(CONFIG_SPL_TARGET
:"%"=%)
755 ALL-
$(CONFIG_REMAKE_ELF
) += u-boot.elf
756 ALL-
$(CONFIG_EFI_APP
) += u-boot-app.efi
757 ALL-
$(CONFIG_EFI_STUB
) += u-boot-payload.efi
759 ifneq ($(BUILD_ROM
),)
760 ALL-
$(CONFIG_X86_RESET_VECTOR
) += u-boot.rom
763 # enable combined SPL/u-boot/dtb rules for tegra
764 ifeq ($(CONFIG_TEGRA
)$(CONFIG_SPL
),yy
)
765 ALL-y
+= u-boot-tegra.bin u-boot-nodtb-tegra.bin
766 ALL-
$(CONFIG_OF_SEPARATE
) += u-boot-dtb-tegra.bin
769 # Add optional build target if defined in board/cpu/soc headers
770 ifneq ($(CONFIG_BUILD_TARGET
),)
771 ALL-y
+= $(CONFIG_BUILD_TARGET
:"%"=%)
774 LDFLAGS_u-boot
+= $(LDFLAGS_FINAL
)
775 ifneq ($(CONFIG_SYS_TEXT_BASE
),)
776 LDFLAGS_u-boot
+= -Ttext
$(CONFIG_SYS_TEXT_BASE
)
779 # Normally we fill empty space with 0xff
780 quiet_cmd_objcopy
= OBJCOPY
$@
781 cmd_objcopy
= $(OBJCOPY
) --gap-fill
=0xff $(OBJCOPYFLAGS
) \
782 $(OBJCOPYFLAGS_
$(@F
)) $< $@
784 # Provide a version which does not do this, for use by EFI
785 quiet_cmd_zobjcopy
= OBJCOPY
$@
786 cmd_zobjcopy
= $(OBJCOPY
) $(OBJCOPYFLAGS
) $(OBJCOPYFLAGS_
$(@F
)) $< $@
788 quiet_cmd_efipayload
= OBJCOPY
$@
789 cmd_efipayload
= $(OBJCOPY
) -I binary
-O
$(EFIPAYLOAD_BFDTARGET
) -B
$(EFIPAYLOAD_BFDARCH
) $< $@
791 quiet_cmd_mkimage
= MKIMAGE
$@
792 cmd_mkimage
= $(objtree
)/tools
/mkimage
$(MKIMAGEFLAGS_
$(@F
)) -d
$< $@ \
793 $(if
$(KBUILD_VERBOSE
:1=), >/dev
/null
)
795 quiet_cmd_cat
= CAT
$@
796 cmd_cat
= cat
$(filter-out $(PHONY
), $^
) > $@
798 append
= cat
$(filter-out $< $(PHONY
), $^
) >> $@
800 quiet_cmd_pad_cat
= CAT
$@
801 cmd_pad_cat
= $(cmd_objcopy
) && $(append
) ||
rm -f
$@
804 ifeq ($(CONFIG_DM_I2C_COMPAT
),y
)
805 @echo
"===================== WARNING ======================"
806 @echo
"This board uses CONFIG_DM_I2C_COMPAT. Please remove"
807 @echo
"(possibly in a subsequent patch in your series)"
808 @echo
"before sending patches to the mailing list."
809 @echo
"===================================================="
815 dts
/dt.dtb
: checkdtc u-boot
816 $(Q
)$(MAKE
) $(build
)=dts dtbs
818 quiet_cmd_copy
= COPY
$@
821 ifeq ($(CONFIG_OF_SEPARATE
),y
)
822 u-boot-dtb.bin
: u-boot-nodtb.bin dts
/dt.dtb FORCE
823 $(call if_changed
,cat
)
825 u-boot.bin
: u-boot-dtb.bin FORCE
826 $(call if_changed
,copy
)
828 u-boot.bin
: u-boot-nodtb.bin FORCE
829 $(call if_changed
,copy
)
833 $(Q
)$(MAKE
) $(build
)=arch
/arm
/imx-common
$@
835 u-boot.dtb
: dts
/dt.dtb
838 OBJCOPYFLAGS_u-boot.hex
:= -O ihex
840 OBJCOPYFLAGS_u-boot.srec
:= -O srec
842 u-boot.hex u-boot.srec
: u-boot FORCE
843 $(call if_changed
,objcopy
)
845 OBJCOPYFLAGS_u-boot-nodtb.bin
:= -O binary \
846 $(if
$(CONFIG_X86_RESET_VECTOR
),-R .start16
-R .resetvec
)
848 binary_size_check
: u-boot-nodtb.bin FORCE
849 @file_size
=$(shell wc
-c u-boot-nodtb.bin | awk
'{print $$1}') ; \
850 map_size
=$(shell cat u-boot.map | \
851 awk
'/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
854 if
[ "" != "$$map_size" ]; then \
855 if
test $$map_size -ne
$$file_size; then \
856 echo
"u-boot.map shows a binary size of $$map_size" >&2 ; \
857 echo
" but u-boot-nodtb.bin shows $$file_size" >&2 ; \
862 u-boot-nodtb.bin
: u-boot FORCE
863 $(call if_changed
,objcopy
)
864 $(call DO_STATIC_RELA
,$<,$@
,$(CONFIG_SYS_TEXT_BASE
))
869 $(LDR
) -T
$(CONFIG_CPU
) -c
$@
$< $(LDR_FLAGS
)
872 OBJCOPYFLAGS_u-boot.ldr.hex
:= -I binary
-O ihex
874 OBJCOPYFLAGS_u-boot.ldr.srec
:= -I binary
-O srec
876 u-boot.ldr.hex u-boot.ldr.srec
: u-boot.ldr FORCE
877 $(call if_changed
,objcopy
)
880 # U-Boot entry point, needed for booting of full-blown U-Boot
881 # from the SPL U-Boot version.
883 ifndef CONFIG_SYS_UBOOT_START
884 CONFIG_SYS_UBOOT_START
:= 0
887 # Create a file containing the configuration options the image was built with
888 quiet_cmd_cpp_cfg
= CFG
$@
889 cmd_cpp_cfg
= $(CPP
) -Wp
,-MD
,$(depfile
) $(cpp_flags
) $(LDPPFLAGS
) -ansi \
890 -DDO_DEPS_ONLY
-D__ASSEMBLY__
-x assembler-with-cpp
-P
-dM
-E
-o
$@
$<
892 ifdef CONFIG_SPL_LOAD_FIT
893 MKIMAGEFLAGS_u-boot.img
= -f auto
-A
$(ARCH
) -T firmware
-C none
-O u-boot \
894 -a
$(CONFIG_SYS_TEXT_BASE
) -e
$(CONFIG_SYS_UBOOT_START
) \
895 -n
"U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
896 $(patsubst %,-b arch
/$(ARCH
)/dts
/%.dtb
,$(subst ",,$(CONFIG_OF_LIST)))
898 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
899 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
900 -n "U-Boot
$(UBOOTRELEASE
) for
$(BOARD
) board
"
903 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
905 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
906 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
908 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
909 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
911 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
912 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
914 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl: \
915 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
916 $(call if_changed,mkimage)
918 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
919 $(call if_changed,mkimage)
921 u-boot.sha1: u-boot.bin
922 tools/ubsha1 u-boot.bin
925 $(OBJDUMP) -d $< > $@
927 u-boot.cfg: include/config.h FORCE
928 $(call if_changed,cpp_cfg)
931 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
933 SPL_PAYLOAD := u-boot.bin
936 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
937 --pad-to=$(CONFIG_SPL_PAD_TO)
938 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
939 $(call if_changed,pad_cat)
941 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
943 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
944 $(call if_changed,mkimage)
946 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
948 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
949 $(call if_changed,objcopy)
951 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
953 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
954 $(call if_changed,objcopy)
956 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
957 $(call if_changed,cat)
959 CLEAN_FILES += lpc32xx-*
961 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
962 --pad-to=$(CONFIG_TPL_PAD_TO)
963 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
964 $(call if_changed,pad_cat)
966 SPL: spl/u-boot-spl.bin FORCE
967 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
969 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
970 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
972 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
974 u-boot.ubl: u-boot-with-spl.bin FORCE
975 $(call if_changed,mkimage)
977 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
978 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev
/null
") \
979 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
980 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
981 $(call if_changed,mkimage)
983 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
984 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
985 $(call if_changed,pad_cat)
987 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
988 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
989 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
990 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
992 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
993 # Both images are created using mkimage (crc etc), so that the ROM
994 # bootloader can check its integrity. Padding needs to be done to the
995 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
996 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
997 # The resulting image containing both U-Boot images is called u-boot.spr
998 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
999 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1000 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1001 $(call if_changed,mkimage)
1003 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1005 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1006 $(call if_changed,pad_cat)
1008 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1009 quiet_cmd_socboot = SOCBOOT $@
1010 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1011 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1012 u-boot.img > $@ || rm -f $@
1013 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1014 $(call if_changed,socboot)
1017 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1018 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1020 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1021 rom: u-boot.rom FORCE
1023 IFDTOOL=$(objtree)/tools/ifdtool
1024 IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb
1025 IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1)
1026 IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot-nodtb.bin
1027 IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin
1030 ifneq ($(CONFIG_HAVE_INTEL_ME),)
1031 IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin
1032 IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin
1035 ifneq ($(CONFIG_HAVE_MRC),)
1036 IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin
1039 ifneq ($(CONFIG_HAVE_FSP),)
1040 IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE)
1043 ifneq ($(CONFIG_HAVE_CMC),)
1044 IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE)
1047 ifneq ($(CONFIG_HAVE_VGA_BIOS),)
1048 IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE)
1051 ifneq ($(CONFIG_HAVE_REFCODE),)
1052 IFDTOOL_FLAGS += -w $(CONFIG_X86_REFCODE_ADDR):refcode.bin
1055 quiet_cmd_ifdtool = IFDTOOL $@
1056 cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp;
1057 ifneq ($(CONFIG_HAVE_INTEL_ME),)
1058 cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp;
1060 cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp;
1061 cmd_ifdtool += mv u-boot.tmp $@
1063 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1064 $(call if_changed,copy)
1066 quiet_cmd_ldr = LD $@
1067 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1068 $(filter-out FORCE,$^) -o $@
1070 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin FORCE \
1071 $(if $(CONFIG_HAVE_REFCODE),refcode.bin)
1072 $(call if_changed,ifdtool)
1074 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1075 u-boot-x86-16bit.bin: u-boot FORCE
1076 $(call if_changed,objcopy)
1079 ifneq ($(CONFIG_SUNXI),)
1080 OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \
1081 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1082 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE
1083 $(call if_changed,pad_cat)
1086 ifneq ($(CONFIG_TEGRA),)
1087 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1088 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1089 $(call if_changed,pad_cat)
1091 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1092 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1093 $(call if_changed,pad_cat)
1095 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1096 $(call if_changed,copy)
1099 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1100 u-boot-app.efi: u-boot FORCE
1101 $(call if_changed,zobjcopy)
1103 u-boot.bin.o: u-boot.bin FORCE
1104 $(call if_changed,efipayload)
1106 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1107 $(call if_changed_dep,cpp_lds)
1109 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1110 quiet_cmd_u-boot_payload ?= LD $@
1111 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1112 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1113 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1114 $(addprefix arch/$(ARCH)/lib/efi/,$(EFISTUB))
1116 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1117 $(call if_changed,u-boot_payload)
1119 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1120 u-boot-payload.efi: u-boot-payload FORCE
1121 $(call if_changed,zobjcopy)
1123 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1124 $(call if_changed,cat)
1126 #Add a target to create boot binary having SPL binary in PBI format
1127 #concatenated with u-boot binary. It is need by PowerPC SoC having
1128 #internal SRAM <= 512KB.
1129 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1130 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1131 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1133 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1134 $(call if_changed,mkimage)
1137 UBOOT_BINLOAD := u-boot.img
1139 UBOOT_BINLOAD := u-boot.bin
1142 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1145 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1146 $(call if_changed,pad_cat)
1148 # PPC4xx needs the SPL at the end of the image, since the reset vector
1149 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin
" target
1150 # and need to introduce a new build target with the full blown U-Boot
1151 # at the start padded up to the start of the SPL image. And then concat
1152 # the SPL image to the end.
1154 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1155 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1156 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1157 $(call if_changed,pad_cat)
1159 # Create a new ELF from a raw binary file. This is useful for arm64
1160 # where static relocation needs to be performed on the raw binary,
1161 # but certain simulators only accept an ELF file (but don't do the
1163 # FIXME refactor dts/Makefile to share target/arch detection
1164 u-boot.elf: u-boot.bin
1165 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \
1167 @$(LD) u-boot-elf.o -o $@ \
1168 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
1169 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1171 # Rule to link u-boot
1172 # May be overridden by arch/$(ARCH)/config.mk
1173 quiet_cmd_u-boot__ ?= LD $@
1174 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1175 -T u-boot.lds $(u-boot-init) \
1176 --start-group $(u-boot-main) --end-group \
1177 $(PLATFORM_LIBS) -Map u-boot.map
1179 quiet_cmd_smap = GEN common/system_map.o
1181 smap=`$(call SYSTEM_MAP,u-boot) | \
1182 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1183 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1184 -c $(srctree)/common/system_map.c -o common/system_map.o
1186 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1187 $(call if_changed,u-boot__)
1188 ifeq ($(CONFIG_KALLSYMS),y)
1190 $(call cmd,u-boot__) common/system_map.o
1193 quiet_cmd_sym ?= SYM $@
1194 cmd_sym ?= $(OBJDUMP) -t $< > $@
1195 u-boot.sym: u-boot FORCE
1196 $(call if_changed,sym)
1198 # The actual objects are generated when descending,
1199 # make sure no implicit rule kicks in
1200 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1202 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1203 # Preset locale variables to speed up the build process. Limit locale
1204 # tweaks to this spot to avoid wrong language settings when running
1205 # make menuconfig etc.
1206 # Error messages still appears in the original language
1208 PHONY += $(u-boot-dirs)
1209 $(u-boot-dirs): prepare scripts
1210 $(Q)$(MAKE) $(build)=$@
1213 # The "tools
" are needed early
1214 $(filter-out tools, $(u-boot-dirs)): tools
1215 # The "examples
" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1216 # is "yes
"), so compile examples after U-Boot is compiled.
1217 examples: $(filter-out examples, $(u-boot-dirs))
1219 define filechk_uboot.release
1220 echo "$(UBOOTVERSION
)$$($(CONFIG_SHELL
) $(srctree
)/scripts
/setlocalversion
$(srctree
))"
1223 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1224 include/config/uboot.release: include/config/auto.conf FORCE
1225 $(call filechk,uboot.release)
1228 # Things we need to do before we recursively start building the kernel
1229 # or the modules are listed in "prepare
".
1230 # A multi level approach is used. prepareN is processed before prepareN-1.
1231 # archprepare is used in arch Makefiles and when processed asm symlink,
1232 # version.h and scripts_basic is processed / created.
1234 # Listed in dependency order
1235 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1237 # prepare3 is used to check if we are building in a separate output directory,
1239 # 1) Check that make has not been executed in the kernel src $(srctree)
1240 prepare3: include/config/uboot.release
1241 ifneq ($(KBUILD_SRC),)
1242 @$(kecho) ' Using $(srctree) as source for U-Boot'
1243 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1244 echo >&2 " $(srctree
) is not
clean, please run
'make mrproper'"; \
1245 echo >&2 " in the
'$(srctree)' directory.
";\
1250 # prepare2 creates a makefile if using a separate output directory
1251 prepare2: prepare3 outputmakefile
1253 prepare1: prepare2 $(version_h) $(timestamp_h) \
1254 include/config/auto.conf
1255 ifeq ($(wildcard $(LDSCRIPT)),)
1256 @echo >&2 " Could not find linker script.
"
1260 archprepare: prepare1 scripts_basic
1262 prepare0: archprepare FORCE
1263 $(Q)$(MAKE) $(build)=.
1265 # All the preparing..
1268 # Generate some files
1269 # ---------------------------------------------------------------------------
1271 define filechk_version.h
1272 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1273 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1274 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1275 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1278 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1279 # The BSD date on the other hand behaves different and would produce errors
1280 # with the misused '-d' switch. Respect that and search a working date with
1281 # well known pre- and suffixes for the GNU variant of date.
1282 define filechk_timestamp.h
1283 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1284 SOURCE_DATE="@
$${SOURCE_DATE_EPOCH}"; \
1286 for date in gdate date.gnu date; do \
1287 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1289 if test -n "$${DATE}"; then \
1290 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b
%d
%C
%y
"'; \
1291 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T
"'; \
1292 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z
"'; \
1293 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m
/%d
/%Y
"'; \
1298 LC_ALL=C date +'#define U_BOOT_DATE "%b
%d
%C
%y
"'; \
1299 LC_ALL=C date +'#define U_BOOT_TIME "%T
"'; \
1300 LC_ALL=C date +'#define U_BOOT_TZ "%z
"'; \
1301 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m
/%d
/%Y
"'; \
1305 $(version_h): include/config/uboot.release FORCE
1306 $(call filechk,version.h)
1308 $(timestamp_h): $(srctree)/Makefile FORCE
1309 $(call filechk,timestamp.h)
1311 # ---------------------------------------------------------------------------
1312 quiet_cmd_cpp_lds = LDS $@
1313 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1314 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1316 u-boot.lds: $(LDSCRIPT) prepare FORCE
1317 $(call if_changed_dep,cpp_lds)
1319 spl/u-boot-spl.bin: spl/u-boot-spl
1321 spl/u-boot-spl: tools prepare $(if $(CONFIG_OF_SEPARATE),dts/dt.dtb)
1322 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1324 spl/sunxi-spl.bin: spl/u-boot-spl
1327 spl/u-boot-spl.sfp: spl/u-boot-spl
1330 spl/boot.bin: spl/u-boot-spl
1333 tpl/u-boot-tpl.bin: tools prepare
1334 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1336 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1342 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1343 -name '*.[chS]' -print`
1347 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1348 -name '*.[chS]' -print`
1350 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1356 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1359 @$(call SYSTEM_MAP,$<) > $@
1362 @if test $(call dtc-version) -lt 0104; then \
1363 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1367 #########################################################################
1369 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1370 # R_AARCH64_RELATIVE (64-bit).
1371 checkarmreloc: u-boot
1372 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1373 grep R_A | sort -u`"; \
1374 if test "$$RELOC" != "R_ARM_RELATIVE
" -a \
1375 "$$RELOC" != "R_AARCH64_RELATIVE
"; then \
1376 echo "$< contains unexpected relocations
: $$RELOC"; \
1381 $(Q)$(MAKE) $(build)=tools/$@
1383 tools-only: scripts_basic $(version_h) $(timestamp_h)
1384 $(Q)$(MAKE) $(build)=tools
1386 tools-all: export HOST_TOOLS_ALL=y
1387 tools-all: env tools ;
1389 cross_tools: export CROSS_BUILD_TOOLS=y
1390 cross_tools: tools ;
1394 git log --no-merges U-Boot-1_1_5.. | \
1395 unexpand -a | sed -e 's/\s\s*$$//' > $@
1397 #########################################################################
1400 # Cleaning is done on three levels.
1401 # make clean Delete most generated files
1402 # Leave enough to build external modules
1403 # make mrproper Delete the current configuration, and all generated files
1404 # make distclean Remove editor backup files, patch leftover files and the like
1406 # Directories & files removed with 'make clean'
1407 CLEAN_DIRS += $(MODVERDIR) \
1408 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1409 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1411 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h include/license.h \
1412 boot* u-boot* MLO* SPL System.map
1414 # Directories & files removed with 'make mrproper'
1415 MRPROPER_DIRS += include/config include/generated spl tpl \
1417 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1418 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1420 # clean - Delete most, but leave enough to build external modules
1422 clean: rm-dirs := $(CLEAN_DIRS)
1423 clean: rm-files := $(CLEAN_FILES)
1425 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1427 clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1429 PHONY += $(clean-dirs) clean archclean
1431 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1433 # TODO: Do not use *.cfgtmp
1434 clean: $(clean-dirs)
1437 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1438 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1439 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1440 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1441 -o -name '*.symtypes' -o -name 'modules.order' \
1442 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1443 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1444 -o -name '*.gcno' \) -type f -print | xargs rm -f
1446 # mrproper - Delete all generated files, including .config
1448 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1449 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1450 mrproper-dirs := $(addprefix _mrproper_,scripts)
1452 PHONY += $(mrproper-dirs) mrproper archmrproper
1454 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1456 mrproper: clean $(mrproper-dirs)
1459 @rm -f arch/*/include/asm/arch
1466 @find $(srctree) $(RCS_FIND_IGNORE) \
1467 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1468 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1469 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1470 -o -name '*.pyc' \) \
1471 -type f -print | xargs rm -f
1475 F=`basename $(srctree)` ; cd .. ; \
1476 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-
%m-
%d-
%T.
tar.gz
"` $$F
1479 @echo 'Cleaning targets:'
1480 @echo ' clean - Remove most generated files but keep the config'
1481 @echo ' mrproper - Remove all generated files + config + various backup files'
1482 @echo ' distclean - mrproper + remove editor backup and patch files'
1484 @echo 'Configuration targets:'
1485 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1487 @echo 'Other generic targets:'
1488 @echo ' all - Build all necessary images depending on configuration'
1489 @echo '* u-boot - Build the bare u-boot'
1490 @echo ' dir/ - Build all files in dir and below'
1491 @echo ' dir/file.[oisS] - Build specified target only'
1492 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1493 @echo ' (requires a recent binutils and recent build (System.map))'
1494 @echo ' tags/ctags - Generate ctags file for editors'
1495 @echo ' etags - Generate etags file for editors'
1496 @echo ' cscope - Generate cscope index'
1497 @echo ' ubootrelease - Output the release version string (use with make -s)'
1498 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1500 @echo 'Static analysers'
1501 @echo ' checkstack - Generate a list of stack hogs'
1503 @echo 'Documentation targets:'
1504 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1506 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1507 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1508 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1509 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1510 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1511 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1512 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1513 @echo ' 1: warnings which may be relevant and do not occur too often'
1514 @echo ' 2: warnings which occur quite often but may still be relevant'
1515 @echo ' 3: more obscure warnings, can most likely be ignored'
1516 @echo ' Multiple levels can be combined with W=12 or W=123'
1518 @echo 'Execute "make
" or "make
all" to build all targets marked with [*] '
1519 @echo 'For further info see the ./README file'
1522 # Documentation targets
1523 # ---------------------------------------------------------------------------
1524 %docs: scripts_basic FORCE
1525 $(Q)$(MAKE) $(build)=scripts build_docproc
1526 $(Q)$(MAKE) $(build)=doc/DocBook $@
1529 PHONY += prepare scripts
1533 endif #ifeq ($(config-targets),1)
1534 endif #ifeq ($(mixed-targets),1)
1536 PHONY += checkstack ubootrelease ubootversion
1539 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1540 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1543 @echo "$(UBOOTVERSION
)$$($(CONFIG_SHELL
) $(srctree
)/scripts
/setlocalversion
$(srctree
))"
1546 @echo $(UBOOTVERSION)
1549 # ---------------------------------------------------------------------------
1550 # Single targets are compatible with:
1551 # - build with mixed source and output
1552 # - build with separate output dir 'make O=...'
1553 # - external modules
1555 # target-dir => where to store outputfile
1556 # build-dir => directory in kernel source tree to use
1558 ifeq ($(KBUILD_EXTMOD),)
1559 build-dir = $(patsubst %/,%,$(dir $@))
1560 target-dir = $(dir $@)
1562 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1563 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1564 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1567 %.s: %.c prepare scripts FORCE
1568 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1569 %.i: %.c prepare scripts FORCE
1570 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1571 %.o: %.c prepare scripts FORCE
1572 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1573 %.lst: %.c prepare scripts FORCE
1574 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1575 %.s: %.S prepare scripts FORCE
1576 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1577 %.o: %.S prepare scripts FORCE
1578 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1579 %.symtypes: %.c prepare scripts FORCE
1580 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1583 /: prepare scripts FORCE
1585 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1586 $(build)=$(build-dir)
1587 %/: prepare scripts FORCE
1589 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1590 $(build)=$(build-dir)
1591 %.ko: prepare scripts FORCE
1593 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1594 $(build)=$(build-dir) $(@:.ko=.o)
1595 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1597 # FIXME Should go into a make.lib or something
1598 # ===========================================================================
1600 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1601 cmd_rmdirs = rm -rf $(rm-dirs)
1603 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1604 cmd_rmfiles = rm -f $(rm-files)
1606 # read all saved command lines
1608 targets := $(wildcard $(sort $(targets)))
1609 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1611 ifneq ($(cmd_files),)
1612 $(cmd_files): ; # Do not try to update included dependency files
1613 include $(cmd_files)
1616 endif # skip-makefile
1621 # Declare the contents of the .PHONY variable as phony. We keep that
1622 # information in a variable so we can use it in if_changed and friends.