1 # SPDX-License-Identifier: GPL-2.0+
10 # To see a list of typical targets execute "make help"
11 # More info can be located in ./README
12 # Comments in this file are targeted only to the developer, do not
13 # expect to learn how to build the kernel reading this file.
15 # o Do not use make's built-in rules and variables
16 # (this increases performance and avoids hard-to-debug behaviour);
17 # o Look for make include files relative to root of kernel src
18 MAKEFLAGS += -rR --include-dir=$(CURDIR)
20 # Determine target architecture for the sandbox
21 include include/host_arch.h
22 ifeq ("", "$(CROSS_COMPILE)")
23 MK_ARCH="${shell uname -m}"
25 MK_ARCH="${shell echo $(CROSS_COMPILE) | sed -n 's/^\s*\([^\/]*\/\)*\([^-]*\)-\S*/\2/p'}"
28 ifeq ("x86_64", $(MK_ARCH))
29 export HOST_ARCH=$(HOST_ARCH_X86_64)
30 else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686"))
31 export HOST_ARCH=$(HOST_ARCH_X86)
32 else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l"))
33 export HOST_ARCH=$(HOST_ARCH_AARCH64)
34 else ifneq (,$(findstring $(MK_ARCH), "arm" "armv7" "armv7l"))
35 export HOST_ARCH=$(HOST_ARCH_ARM)
36 else ifeq ("riscv32", $(MK_ARCH))
37 export HOST_ARCH=$(HOST_ARCH_RISCV32)
38 else ifeq ("riscv64", $(MK_ARCH))
39 export HOST_ARCH=$(HOST_ARCH_RISCV64)
43 # Avoid funny character set dependencies
47 export LC_COLLATE LC_NUMERIC
49 # Avoid interference with shell env settings
52 # We are using a recursive build, so we need to do a little thinking
53 # to get the ordering right.
55 # Most importantly: sub-Makefiles should only ever modify files in
56 # their own directory. If in some directory we have a dependency on
57 # a file in another dir (which doesn't happen often, but it's often
58 # unavoidable when linking the built-in.o targets which finally
59 # turn into vmlinux), we will call a sub make in that other dir, and
60 # after that we are sure that everything which is in that other dir
63 # The only cases where we need to modify files which have global
64 # effects are thus separated out and done before the recursive
65 # descending is started. They are now explicitly listed as the
69 # ---------------------------------------------------------------------------
71 # Normally, we echo the whole command before executing it. By making
72 # that echo $($(quiet)$(cmd)), we now have the possibility to set
73 # $(quiet) to choose other forms of output instead, e.g.
75 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
76 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
78 # If $(quiet) is empty, the whole command will be printed.
79 # If it is set to "quiet_", only the short version will be printed.
80 # If it is set to "silent_", nothing will be printed at all, since
81 # the variable $(silent_cmd_cc_o_c) doesn't exist.
83 # A simple variant is to prefix commands with $(Q) - that's useful
84 # for commands that shall be hidden in non-verbose mode.
88 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
89 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
91 # To put more focus on warnings, be less verbose as default
92 # Use 'make V=1' to see the full commands
94 ifeq ("$(origin V)", "command line")
101 ifeq ($(KBUILD_VERBOSE),1)
109 # If the user is running make -s (silent mode), suppress echoing of
112 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
113 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
117 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
122 export quiet Q KBUILD_VERBOSE
124 # kbuild supports saving output files in a separate directory.
125 # To locate output files in a separate directory two syntaxes are supported.
126 # In both cases the working directory must be the root of the kernel src.
128 # Use "make O=dir/to/store/output/files/"
130 # 2) Set KBUILD_OUTPUT
131 # Set the environment variable KBUILD_OUTPUT to point to the directory
132 # where the output files shall be placed.
133 # export KBUILD_OUTPUT=dir/to/store/output/files/
136 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
139 # KBUILD_SRC is set on invocation of make in OBJ directory
140 # KBUILD_SRC is not intended to be used by the regular user (for now)
141 ifeq ($(KBUILD_SRC),)
143 # OK, Make called in directory where kernel src resides
144 # Do we want to locate output files in a separate directory?
145 ifeq ("$(origin O)", "command line")
146 KBUILD_OUTPUT := $(O)
149 # That's our default target when none is given on the command line
153 # Cancel implicit rules on top Makefile
154 $(CURDIR)/Makefile Makefile: ;
156 ifneq ($(KBUILD_OUTPUT),)
157 # Invoke a second make in the output directory, passing relevant variables
158 # check that the output directory actually exists
159 saved-output := $(KBUILD_OUTPUT)
160 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
162 $(if $(KBUILD_OUTPUT),, \
163 $(error failed to create output directory "$(saved-output)"))
165 PHONY += $(MAKECMDGOALS) sub-make
167 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
171 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
172 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
174 # Leave processing to above invocation of make
176 endif # ifneq ($(KBUILD_OUTPUT),)
177 endif # ifeq ($(KBUILD_SRC),)
179 # We process the rest of the Makefile if this is the final invocation of make
180 ifeq ($(skip-makefile),)
182 # Do not print "Entering directory ...",
183 # but we want to display it when entering to the output directory
184 # so that IDEs/editors are able to understand relative filenames.
185 MAKEFLAGS += --no-print-directory
187 # Call a source code checker (by default, "sparse") as part of the
190 # Use 'make C=1' to enable checking of only re-compiled files.
191 # Use 'make C=2' to enable checking of *all* source files, regardless
192 # of whether they are re-compiled or not.
194 # See the file "doc/sparse.txt" for more details, including
195 # where to get the "sparse" utility.
197 ifeq ("$(origin C)", "command line")
198 KBUILD_CHECKSRC = $(C)
200 ifndef KBUILD_CHECKSRC
204 # Use make M=dir to specify directory of external module to build
205 # Old syntax make ... SUBDIRS=$PWD is still supported
206 # Setting the environment variable KBUILD_EXTMOD take precedence
208 KBUILD_EXTMOD ?= $(SUBDIRS)
211 ifeq ("$(origin M)", "command line")
212 KBUILD_EXTMOD := $(M)
215 # If building an external module we do not care about the all: rule
216 # but instead _all depend on modules
218 ifeq ($(KBUILD_EXTMOD),)
224 ifeq ($(KBUILD_SRC),)
225 # building in the source tree
228 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
229 # building in a subdirectory of the source tree
232 srctree := $(KBUILD_SRC)
239 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
241 export srctree objtree VPATH
243 # Make sure CDPATH settings don't interfere
246 #########################################################################
248 HOSTARCH := $(shell uname -m | \
250 -e s/sun4u/sparc64/ \
253 -e s/ppc64/powerpc/ \
255 -e s/macppc/powerpc/\
258 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
259 sed -e 's/\(cygwin\).*/cygwin/')
261 export HOSTARCH HOSTOS
263 #########################################################################
265 # set default to nothing for native builds
266 ifeq ($(HOSTARCH),$(ARCH))
270 KCONFIG_CONFIG ?= .config
271 export KCONFIG_CONFIG
273 # SHELL used by kbuild
274 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
275 else if [ -x /bin/bash ]; then echo /bin/bash; \
276 else echo sh; fi ; fi)
278 HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
279 HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
280 HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
284 KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
285 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
286 KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
287 KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
288 KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
290 # With the move to GCC 6, we have implicitly upgraded our language
291 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
292 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
293 # have older compilers as their default, so we make it explicit for
294 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
295 CSTD_FLAG := -std=gnu11
296 ifeq ($(HOSTOS),linux)
297 KBUILD_HOSTCFLAGS += $(CSTD_FLAG)
300 ifeq ($(HOSTOS),cygwin)
301 KBUILD_HOSTCFLAGS += -ansi
304 # Mac OS X / Darwin's C preprocessor is Apple specific. It
305 # generates numerous errors and warnings. We want to bypass it
306 # and use GNU C's cpp. To do this we pass the -traditional-cpp
307 # option to the compiler. Note that the -traditional-cpp flag
308 # DOES NOT have the same semantics as GNU C's flag, all it does
309 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
311 # Apple's linker is similar, thanks to the new 2 stage linking
312 # multiple symbol definitions are treated as errors, hence the
313 # -multiply_defined suppress option to turn off this error.
315 ifeq ($(HOSTOS),darwin)
316 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
317 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
318 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
320 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
321 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
323 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
324 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
326 # Snow Leopards build environment has no longer restrictions as described above
327 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
328 KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
329 KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
331 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
332 # in some host tools which is a problem then ... so disable ASLR for these
334 KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
336 # macOS Mojave (10.14.X)
337 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
338 KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
341 # Decide whether to build built-in, modular, or both.
342 # Normally, just do built-in.
347 # If we have only "make modules", don't compile built-in objects.
348 # When we're building modules with modversions, we need to consider
349 # the built-in objects during the descend as well, in order to
350 # make sure the checksums are up to date before we record them.
352 ifeq ($(MAKECMDGOALS),modules)
353 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
356 # If we have "make <whatever> modules", compile modules
357 # in addition to whatever we do anyway.
358 # Just "make" or "make all" shall build modules as well
360 # U-Boot does not need modules
361 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
362 # KBUILD_MODULES := 1
365 #ifeq ($(MAKECMDGOALS),)
366 # KBUILD_MODULES := 1
369 # Check ths size of a binary:
372 # #2: Size limit in bytes (decimal or 0xhex)
374 actual=$$( wc -c $1 | awk '{print $$1}'); \
375 limit=$$( printf "%d" $2 ); \
376 if test $$actual -gt $$limit; then \
377 echo "$1 exceeds file size limit:" >&2; \
378 echo " limit: $$(printf %#x $$limit) bytes" >&2; \
379 echo " actual: $$(printf %#x $$actual) bytes" >&2; \
380 echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\
386 export KBUILD_MODULES KBUILD_BUILTIN
387 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
389 # We need some generic definitions (do not try to remake the file).
390 scripts/Kbuild.include: ;
391 include scripts/Kbuild.include
393 # Make variables (CC, etc...)
395 AS = $(CROSS_COMPILE)as
397 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
398 LD = $(CROSS_COMPILE)ld.bfd
400 LD = $(CROSS_COMPILE)ld
402 CC = $(CROSS_COMPILE)gcc
404 AR = $(CROSS_COMPILE)ar
405 NM = $(CROSS_COMPILE)nm
406 LDR = $(CROSS_COMPILE)ldr
407 STRIP = $(CROSS_COMPILE)strip
408 OBJCOPY = $(CROSS_COMPILE)objcopy
409 OBJDUMP = $(CROSS_COMPILE)objdump
417 DTC ?= $(objtree)/scripts/dtc/dtc
420 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
421 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
423 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
425 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
426 -Wno-format-security \
427 -fno-builtin -ffreestanding $(CSTD_FLAG)
428 KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
429 KBUILD_AFLAGS := -D__ASSEMBLY__
432 ifeq ($(cc-name),clang)
433 ifneq ($(CROSS_COMPILE),)
434 CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%))
435 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
436 CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR)
437 GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
439 ifneq ($(GCC_TOOLCHAIN),)
440 CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
442 KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
443 KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
444 KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
445 KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
448 # Don't generate position independent code
449 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
450 KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
452 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
453 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
454 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
456 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
457 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
458 export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
459 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
460 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
461 export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
463 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
464 export KBUILD_CFLAGS KBUILD_AFLAGS
466 export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1)
468 # When compiling out-of-tree modules, put MODVERDIR in the module
469 # tree rather than in the kernel tree. The kernel tree might
471 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
473 # Files to ignore in find ... statements
475 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
476 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
478 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
479 --exclude CVS --exclude .pc --exclude .hg --exclude .git
481 # ===========================================================================
482 # Rules shared between *config targets and build targets
484 # Basic helpers built in scripts/
485 PHONY += scripts_basic
487 $(Q)$(MAKE) $(build)=scripts/basic
488 $(Q)rm -f .tmp_quiet_recordmcount
490 # To avoid any implicit rule to kick in, define an empty command.
491 scripts/basic/%: scripts_basic ;
493 PHONY += outputmakefile
494 # outputmakefile generates a Makefile in the output directory, if using a
495 # separate output directory. This allows convenient use of make in the
498 ifneq ($(KBUILD_SRC),)
499 $(Q)ln -fsn $(srctree) source
500 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
501 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
504 # To make sure we do not include .config for any of the *config targets
505 # catch them early, and hand them over to scripts/kconfig/Makefile
506 # It is allowed to specify more targets when calling make, including
507 # mixing *config targets and build targets.
508 # For example 'make oldconfig all'.
509 # Detect when mixed targets is specified, and make a second invocation
510 # of make so .config is not included in this case either (for *config).
512 version_h := include/generated/version_autogenerated.h
513 timestamp_h := include/generated/timestamp_autogenerated.h
514 defaultenv_h := include/generated/defaultenv_autogenerated.h
515 dt_h := include/generated/dt.h
517 no-dot-config-targets := clean clobber mrproper distclean \
518 help %docs check% coccicheck \
519 ubootversion backup tests check qcheck tcheck
525 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
526 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
531 ifeq ($(KBUILD_EXTMOD),)
532 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
534 ifneq ($(words $(MAKECMDGOALS)),1)
540 ifeq ($(mixed-targets),1)
541 # ===========================================================================
542 # We're called with mixed targets (*config and build targets).
543 # Handle them one by one.
545 PHONY += $(MAKECMDGOALS) __build_one_by_one
547 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
552 for i in $(MAKECMDGOALS); do \
553 $(MAKE) -f $(srctree)/Makefile $$i; \
557 ifeq ($(config-targets),1)
558 # ===========================================================================
559 # *config targets only - make sure prerequisites are updated, and descend
560 # in scripts/kconfig to make the *config target
562 KBUILD_DEFCONFIG := sandbox_defconfig
563 export KBUILD_DEFCONFIG KBUILD_KCONFIG
565 config: scripts_basic outputmakefile FORCE
566 $(Q)$(MAKE) $(build)=scripts/kconfig $@
568 %config: scripts_basic outputmakefile FORCE
569 $(Q)$(MAKE) $(build)=scripts/kconfig $@
572 # ===========================================================================
573 # Build targets only - this includes vmlinux, arch specific targets, clean
574 # targets and others. In general all targets except *config targets.
576 # Additional helpers built in scripts/
577 # Carefully list dependencies so we do not try to build scripts twice
580 scripts: scripts_basic include/config/auto.conf
581 $(Q)$(MAKE) $(build)=$(@)
583 ifeq ($(dot-config),1)
585 -include include/config/auto.conf
587 # Read in dependencies to all Kconfig* files, make sure to run
588 # oldconfig if changes are detected.
589 -include include/config/auto.conf.cmd
591 # To avoid any implicit rule to kick in, define an empty command
592 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
594 # If .config is newer than include/config/auto.conf, someone tinkered
595 # with it and forgot to run make oldconfig.
596 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
597 # we execute the config step to be sure to catch updated Kconfig files
598 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
599 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
600 @# If the following part fails, include/config/auto.conf should be
601 @# deleted so "make silentoldconfig" will be re-run on the next build.
602 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
603 { rm -f include/config/auto.conf; false; }
604 @# include/config.h has been updated after "make silentoldconfig".
605 @# We need to touch include/config/auto.conf so it gets newer
606 @# than include/config.h.
607 @# Otherwise, 'make silentoldconfig' would be invoked twice.
608 $(Q)touch include/config/auto.conf
610 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
611 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
613 -include include/autoconf.mk
614 -include include/autoconf.mk.dep
616 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
617 # is up-to-date. When we switch to a different board configuration, old CONFIG
618 # macros are still remaining in include/config/auto.conf. Without the following
619 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
620 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
621 ifneq ($(wildcard include/config/auto.conf),)
622 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
623 include/config/auto.conf)
624 ifeq ($(autoconf_is_old),)
626 include arch/$(ARCH)/Makefile
631 # These are set by the arch-specific config.mk. Make sure they are exported
632 # so they can be used when building an EFI application.
633 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
634 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
635 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
636 export CFLAGS_EFI # Compiler flags to add when building EFI app
637 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
638 export EFI_TARGET # binutils target if EFI is natively supported
640 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
641 # that (or fail if absent). Otherwise, search for a linker script in a
645 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
646 ifdef CONFIG_SYS_LDSCRIPT
647 # need to strip off double quotes
648 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
652 # If there is no specified link script, we look in a number of places for it
654 ifeq ($(wildcard $(LDSCRIPT)),)
655 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
657 ifeq ($(wildcard $(LDSCRIPT)),)
658 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
660 ifeq ($(wildcard $(LDSCRIPT)),)
661 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
666 # Dummy target needed, because used as prerequisite
667 include/config/auto.conf: ;
668 endif # $(dot-config)
671 # Xtensa linker script cannot be preprocessed with -ansi because of
672 # preprocessor operations on strings that don't make C identifiers.
674 ifeq ($(CONFIG_XTENSA),)
678 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
684 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
685 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
687 # disable stringop warnings in gcc 8+
688 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
690 # Enabled with W=2, disabled by default as noisy
691 KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized)
693 # change __FILE__ to the relative path from the srctree
694 KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
697 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
698 # option to the assembler.
701 # Report stack usage if supported
702 # ARC tools based on GCC 7.1 has an issue with stack usage
703 # with naked functions, see commit message for more details
705 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
706 KBUILD_CFLAGS += -fstack-usage
710 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
711 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
713 ifeq ($(cc-name),clang)
714 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
715 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
716 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
717 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
718 # Quiet clang warning: comparison of unsigned expression < 0 is always false
719 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
720 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
721 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
722 # See modpost pattern 2
723 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
724 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
727 # These warnings generated too much noise in a regular build.
728 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
729 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
732 # Prohibit date/time macros, which would make the build non-deterministic
733 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
735 include scripts/Makefile.extrawarn
737 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
738 KBUILD_CPPFLAGS += $(KCPPFLAGS)
739 KBUILD_AFLAGS += $(KAFLAGS)
740 KBUILD_CFLAGS += $(KCFLAGS)
742 KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g)
744 # Use UBOOTINCLUDE when you must reference the include/ directory.
745 # Needed to be compatible with the O= option
748 $(if $(KBUILD_SRC), -I$(srctree)/include) \
749 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
750 $(if $(CONFIG_HAS_THUMB2), \
751 $(if $(CONFIG_CPU_V7M), \
752 -I$(srctree)/arch/arm/thumb1/include), \
753 -I$(srctree)/arch/arm/thumb1/include)) \
754 -I$(srctree)/arch/$(ARCH)/include \
755 -include $(srctree)/include/linux/kconfig.h
757 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
760 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
762 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
764 #########################################################################
765 # U-Boot objects....order is important (i.e. start must be first)
767 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
770 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
771 libs-$(CONFIG_OF_EMBED) += dts/
776 libs-y += drivers/dma/
777 libs-y += drivers/gpio/
778 libs-y += drivers/i2c/
779 libs-y += drivers/net/
780 libs-y += drivers/net/phy/
781 libs-y += drivers/power/ \
782 drivers/power/domain/ \
783 drivers/power/fuel_gauge/ \
785 drivers/power/pmic/ \
786 drivers/power/battery/ \
787 drivers/power/regulator/
788 libs-y += drivers/spi/
789 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
790 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
791 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
792 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
793 libs-y += drivers/serial/
794 libs-y += drivers/usb/cdns3/
795 libs-y += drivers/usb/dwc3/
796 libs-y += drivers/usb/common/
797 libs-y += drivers/usb/emul/
798 libs-y += drivers/usb/eth/
799 libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/
800 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
801 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
802 libs-y += drivers/usb/host/
803 libs-y += drivers/usb/mtu3/
804 libs-y += drivers/usb/musb/
805 libs-y += drivers/usb/musb-new/
806 libs-y += drivers/usb/phy/
807 libs-y += drivers/usb/ulpi/
811 libs-$(CONFIG_API) += api/
815 libs-$(CONFIG_UNIT_TEST) += test/
816 libs-$(CONFIG_UT_ENV) += test/env/
817 libs-$(CONFIG_UT_OPTEE) += test/optee/
818 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
820 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
822 libs-y := $(sort $(libs-y))
824 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
826 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
828 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
830 u-boot-init := $(head-y)
831 u-boot-main := $(libs-y)
835 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
836 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
838 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
840 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
842 ifdef CONFIG_CC_COVERAGE
843 KBUILD_CFLAGS += --coverage
844 PLATFORM_LIBGCC += -lgcov
848 export PLATFORM_LIBGCC
850 # Special flags for CPP when processing the linker script.
851 # Pass the version down so we can handle backwards compatibility
854 -include $(srctree)/include/u-boot/u-boot.lds.h \
856 $(shell $(LD) --version | \
857 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
859 #########################################################################
860 #########################################################################
862 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
863 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
868 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0)
869 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
874 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0)
875 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
880 # Statically apply RELA-style relocations (currently arm64 only)
881 # This is useful for arm64 where static relocation needs to be performed on
882 # the raw binary, but certain simulators only accept an ELF file (but don't
883 # do the relocation).
884 ifneq ($(CONFIG_STATIC_RELA),)
885 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
886 quiet_cmd_static_rela = RELOC $@
888 start=$$($(NM) $(2) | grep __rel_dyn_start | cut -f 1 -d ' '); \
889 end=$$($(NM) $(2) | grep __rel_dyn_end | cut -f 1 -d ' '); \
890 tools/relocate-rela $(3) $(4) $$start $$end
892 quiet_cmd_static_rela =
896 # Always append INPUTS so that arch config.mk's can add custom ones
897 INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
899 INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
900 ifeq ($(CONFIG_SPL_FSL_PBL),y)
901 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
903 ifneq ($(CONFIG_NXP_ESBC), y)
904 # For Secure Boot The Image needs to be signed and Header must also
905 # be included. So The image has to be built explicitly
906 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
909 INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin
910 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
911 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
913 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
914 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
916 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
919 INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
920 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot.dtb
921 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
922 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
924 INPUTS-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
925 ifneq ($(CONFIG_SPL_TARGET),)
926 INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
928 INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf
929 INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi
930 INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi
932 # Generate this input file for binman
933 ifeq ($(CONFIG_SPL),)
934 INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
937 # Add optional build target if defined in board/cpu/soc headers
938 ifneq ($(CONFIG_BUILD_TARGET),)
939 INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%)
942 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
943 INPUTS-y += init_sp_bss_offset_check
946 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
947 INPUTS-y += u-boot-with-dtb.bin
950 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
951 # On ARM64 this target is produced by binman so we don't need this dep
952 ifeq ($(CONFIG_ARM64),y)
953 ifeq ($(CONFIG_SPL),y)
954 # TODO: Get binman to generate this too
955 INPUTS-y += u-boot-rockchip.bin
958 ifeq ($(CONFIG_SPL),y)
959 # Generate these inputs for binman which will create the output files
960 INPUTS-y += idbloader.img u-boot.img
965 INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \
966 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
967 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin)
969 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
971 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
972 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
974 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
975 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
978 # insure the checker run with the right endianness
979 CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
981 # the checker needs the correct machine size
982 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
984 # Normally we fill empty space with 0xff
985 quiet_cmd_objcopy = OBJCOPY $@
986 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
987 $(OBJCOPYFLAGS_$(@F)) $< $@
989 # Provide a version which does not do this, for use by EFI
990 quiet_cmd_zobjcopy = OBJCOPY $@
991 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
993 quiet_cmd_efipayload = OBJCOPY $@
994 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
996 MKIMAGEOUTPUT ?= /dev/null
998 quiet_cmd_mkimage = MKIMAGE $@
999 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
1000 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1002 quiet_cmd_mkfitimage = MKIMAGE $@
1003 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \
1004 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \
1005 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1007 quiet_cmd_cat = CAT $@
1008 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
1010 append = cat $(filter-out $< $(PHONY), $^) >> $@
1012 quiet_cmd_pad_cat = CAT $@
1013 cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; }
1015 quiet_cmd_lzma = LZMA $@
1016 cmd_lzma = lzma -c -z -k -9 $< > $@
1020 quiet_cmd_cfgcheck = CFGCHK $2
1021 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
1022 $(srctree)/scripts/config_whitelist.txt $(srctree)
1027 all: .binman_stamp inputs
1028 ifeq ($(CONFIG_BINMAN),y)
1029 $(call if_changed,binman)
1032 # Timestamp file to make sure that binman always runs
1033 .binman_stamp: FORCE
1036 ifeq ($(CONFIG_DEPRECATED),y)
1037 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
1038 ifeq ($(CONFIG_SPI),y)
1039 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
1040 $(warning "The relevant config item with associated code will remove in v2019.07 release.")
1044 ifneq ($(CONFIG_DM),y)
1045 @echo >&2 "===================== WARNING ======================"
1046 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
1047 @echo >&2 "compulsory starting with the v2020.01 release."
1048 @echo >&2 "Failure to update may result in board removal."
1049 @echo >&2 "See doc/driver-model/migration.rst for more info."
1050 @echo >&2 "===================================================="
1052 ifeq ($(CONFIG_MMC),y)
1053 ifneq ($(CONFIG_DM_MMC)$(CONFIG_BLK),yy)
1054 @echo >&2 "===================== WARNING ======================"
1055 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
1056 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
1057 @echo >&2 "Failure to update by the deadline may result in board removal."
1058 @echo >&2 "See doc/driver-model/migration.rst for more info."
1059 @echo >&2 "===================================================="
1062 ifeq ($(CONFIG_USB),y)
1063 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
1064 @echo >&2 "===================== WARNING ======================"
1065 @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
1066 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
1067 @echo >&2 "Failure to update by the deadline may result in board removal."
1068 @echo >&2 "See doc/driver-model/migration.rst for more info."
1069 @echo >&2 "===================================================="
1072 ifeq ($(CONFIG_MVSATA_IDE),y)
1073 @echo >&2 "===================== WARNING ======================"
1074 @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
1075 @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
1076 @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
1077 @echo >&2 "release."
1078 @echo >&2 "Failure to update by the deadline may result in board removal."
1079 @echo >&2 "See doc/driver-model/migration.rst for more info."
1080 @echo >&2 "===================================================="
1082 ifeq ($(CONFIG_LIBATA),y)
1083 ifneq ($(CONFIG_AHCI),y)
1084 @echo >&2 "===================== WARNING ======================"
1085 @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
1086 @echo >&2 "enabled. Please update the storage controller driver to use"
1087 @echo >&2 "CONFIG_AHCI before the v2019.07 release."
1088 @echo >&2 "Failure to update by the deadline may result in board removal."
1089 @echo >&2 "See doc/driver-model/migration.rst for more info."
1090 @echo >&2 "===================================================="
1093 ifeq ($(CONFIG_PCI),y)
1094 ifneq ($(CONFIG_DM_PCI),y)
1095 @echo >&2 "===================== WARNING ======================"
1096 @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
1097 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
1098 @echo >&2 "Failure to update by the deadline may result in board removal."
1099 @echo >&2 "See doc/driver-model/migration.rst for more info."
1100 @echo >&2 "===================================================="
1103 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
1104 ifneq ($(CONFIG_DM_VIDEO),y)
1105 @echo >&2 "===================== WARNING ======================"
1106 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
1107 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
1108 @echo >&2 "Failure to update by the deadline may result in board removal."
1109 @echo >&2 "See doc/driver-model/migration.rst for more info."
1110 @echo >&2 "===================================================="
1113 ifeq ($(CONFIG_OF_EMBED),y)
1114 @echo >&2 "===================== WARNING ======================"
1115 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1116 @echo >&2 "be used for debugging purposes. Please use"
1117 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1118 @echo >&2 "See doc/README.fdt-control for more info."
1119 @echo >&2 "===================================================="
1121 ifeq ($(CONFIG_SPI_FLASH),y)
1122 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1123 @echo >&2 "===================== WARNING ======================"
1124 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1125 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1126 @echo >&2 "Failure to update by the deadline may result in board removal."
1127 @echo >&2 "See doc/driver-model/migration.rst for more info."
1128 @echo >&2 "===================================================="
1131 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1132 ifneq ($(CONFIG_WDT),y)
1133 @echo >&2 "===================== WARNING ======================"
1134 @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1135 @echo >&2 "Please update the board to use CONFIG_WDT before the"
1136 @echo >&2 "v2019.10 release."
1137 @echo >&2 "Failure to update by the deadline may result in board removal."
1138 @echo >&2 "See doc/driver-model/migration.rst for more info."
1139 @echo >&2 "===================================================="
1142 ifneq ($(CONFIG_NET),)
1143 ifneq ($(CONFIG_DM_ETH),y)
1144 @echo >&2 "===================== WARNING ======================"
1145 @echo >&2 "This board does not use CONFIG_DM_ETH (Driver Model"
1146 @echo >&2 "for Ethernet drivers). Please update the board to use"
1147 @echo >&2 "CONFIG_DM_ETH before the v2020.07 release. Failure to"
1148 @echo >&2 "update by the deadline may result in board removal."
1149 @echo >&2 "See doc/driver-model/migration.rst for more info."
1150 @echo >&2 "===================================================="
1153 ifneq ($(CONFIG_SPL_FIT_GENERATOR),)
1154 @echo >&2 "===================== WARNING ======================"
1155 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate"
1156 @echo >&2 "to binman instead, to avoid the proliferation of"
1157 @echo >&2 "arch-specific scripts with no tests."
1158 @echo >&2 "===================================================="
1160 @# Check that this build does not use CONFIG options that we do not
1161 @# know about unless they are in Kconfig. All the existing CONFIG
1162 @# options are whitelisted, so new ones should not be added.
1163 $(call cmd,cfgcheck,u-boot.cfg)
1169 $(Q)$(MAKE) $(build)=dts dtbs
1171 quiet_cmd_copy = COPY $@
1174 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1176 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1177 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1178 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1179 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1181 FINAL_DTB_CONTAINER = fit-dtb.blob
1184 fit-dtb.blob.gz: fit-dtb.blob
1187 fit-dtb.blob.lzo: fit-dtb.blob
1190 fit-dtb.blob: dts/dt.dtb FORCE
1191 $(call if_changed,mkimage)
1192 ifneq ($(SOURCE_DATE_EPOCH),)
1193 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1194 chmod 0600 fit-dtb.blob
1197 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1199 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1202 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1203 $(call if_changed,cat)
1205 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1206 $(call if_changed,cat)
1209 u-boot.bin: u-boot-fit-dtb.bin FORCE
1210 $(call if_changed,copy)
1212 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1213 $(call if_changed,cat)
1215 else ifeq ($(CONFIG_OF_SEPARATE),y)
1216 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1217 $(call if_changed,cat)
1219 u-boot.bin: u-boot-dtb.bin FORCE
1220 $(call if_changed,copy)
1222 u-boot.bin: u-boot-nodtb.bin FORCE
1223 $(call if_changed,copy)
1226 # we call Makefile in arch/arm/mach-imx which
1227 # has targets which are dependent on targets defined
1228 # here. make could not resolve them and we must ensure
1229 # that they are finished before calling imx targets
1230 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1231 IMX_DEPS = u-boot-fit-dtb.bin
1234 %.imx: $(IMX_DEPS) %.bin
1235 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1239 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1241 quiet_cmd_copy = COPY $@
1244 u-boot.dtb: dts/dt.dtb
1247 OBJCOPYFLAGS_u-boot.hex := -O ihex
1249 OBJCOPYFLAGS_u-boot.srec := -O srec
1251 u-boot.hex u-boot.srec: u-boot FORCE
1252 $(call if_changed,objcopy)
1254 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1256 u-boot-elf.srec: u-boot.elf FORCE
1257 $(call if_changed,objcopy)
1259 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1261 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1262 $(call if_changed,objcopy)
1265 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1267 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1268 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1269 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1271 binary_size_check: u-boot-nodtb.bin FORCE
1272 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1273 map_size=$(shell cat u-boot.map | \
1274 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1277 if [ "" != "$$map_size" ]; then \
1278 if test $$map_size -ne $$file_size; then \
1279 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1280 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1285 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1286 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1287 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1289 subtract_sys_malloc_f_len = true
1291 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1292 # so low that the DTB could probably use 90%+ of the available space, for
1293 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1294 # safe for now and tweak this later if space becomes tight.
1295 # A rejected alternative would be to check that some absolute minimum stack
1296 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1297 # deliberately build-specific, to take account of build-to-build stack usage
1298 # differences due to different feature sets, there is no common absolute value
1300 init_sp_bss_offset_check: u-boot.dtb FORCE
1301 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1302 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1303 $(subtract_sys_malloc_f_len) ; \
1304 quarter_space=$$(($${space} / 4)) ; \
1305 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1306 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1307 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1312 shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
1314 quiet_cmd_objcopy_uboot = OBJCOPY $@
1315 ifdef cmd_static_rela
1316 cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) || { rm -f $@; false; }
1318 cmd_objcopy_uboot = $(cmd_objcopy)
1321 u-boot-nodtb.bin: u-boot FORCE
1322 $(call if_changed,objcopy_uboot)
1327 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1331 # ---------------------------------------------------------------------------
1332 # Use 'make BINMAN_DEBUG=1' to enable debugging
1333 # Use 'make BINMAN_VERBOSE=3' to set vebosity level
1334 default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE))
1335 quiet_cmd_binman = BINMAN $@
1336 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1337 --toolpath $(objtree)/tools \
1338 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1339 build -u -d u-boot.dtb -O . -m --allow-missing \
1340 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1341 -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \
1342 -a atf-bl31-path=${BL31} \
1343 -a default-dt=$(default_dt) \
1344 -a scp-path=$(SCP) \
1347 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1349 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1351 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1352 $(call if_changed,objcopy)
1355 # U-Boot entry point, needed for booting of full-blown U-Boot
1356 # from the SPL U-Boot version.
1358 ifndef CONFIG_SYS_UBOOT_START
1359 CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE)
1362 # Boards with more complex image requirements can provide an .its source file
1363 # or a generator script
1364 # NOTE: Please do not use this. We are migrating away from Makefile rules to use
1366 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1367 U_BOOT_ITS := u-boot.its
1368 $(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1369 $(call if_changed,copy)
1371 ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),)
1372 U_BOOT_ITS := u-boot.its
1373 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1374 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1376 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1377 U_BOOT_ITS_DEPS += u-boot
1379 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1380 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1381 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1385 ifdef CONFIG_SPL_LOAD_FIT
1386 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1387 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1388 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1389 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1390 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \
1391 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1392 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1394 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1395 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1396 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1397 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1398 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1399 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1400 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1403 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1405 # Some boards have the kwbimage.cfg file written in advance, while some
1406 # other boards generate it on the fly during the build in the build tree.
1407 # Let's check if the file exists in the build tree first, otherwise we
1408 # fall back to use the one in the source tree.
1409 KWD_CONFIG_FILE = $(shell \
1410 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1411 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1413 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1416 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1417 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1419 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \
1420 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1421 $(if $(KEYDIR),-k $(KEYDIR))
1423 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1424 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1426 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1427 UBOOT_BIN := u-boot-with-dtb.bin
1429 UBOOT_BIN := u-boot.bin
1432 MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
1433 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1434 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1436 u-boot.bin.lzma: u-boot.bin FORCE
1437 $(call if_changed,lzma)
1439 u-boot-lzma.img: u-boot.bin.lzma FORCE
1440 $(call if_changed,mkimage)
1442 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1443 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
1444 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1445 ,$(UBOOT_BIN)) FORCE
1446 $(call if_changed,mkimage)
1449 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1450 MKIMAGEFLAGS_u-boot.itb =
1452 MKIMAGEFLAGS_u-boot.itb = -E
1456 u-boot.itb: u-boot-nodtb.bin \
1457 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1459 $(call if_changed,mkfitimage)
1463 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1464 $(call if_changed,mkimage)
1466 u-boot.sha1: u-boot.bin
1467 tools/ubsha1 u-boot.bin
1470 $(OBJDUMP) -d $< > $@
1472 ifneq ($(CONFIG_SPL_PAYLOAD),)
1473 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1475 SPL_PAYLOAD := u-boot.bin
1478 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1480 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1481 --pad-to=$(CONFIG_SPL_PAD_TO)
1482 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1483 $(call if_changed,pad_cat)
1485 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
1488 ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy)
1489 MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd
1490 tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE
1491 $(call if_changed,mkimage)
1492 idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE
1493 $(call if_changed,cat)
1495 MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd
1496 idbloader.img: spl/u-boot-spl.bin FORCE
1497 $(call if_changed,mkimage)
1500 ifeq ($(CONFIG_ARM64),y)
1501 OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \
1502 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1503 u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE
1504 $(call if_changed,pad_cat)
1505 endif # CONFIG_ARM64
1507 endif # CONFIG_ARCH_ROCKCHIP
1509 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1510 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1512 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1513 $(call if_changed,mkimage)
1515 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1517 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1518 $(call if_changed,objcopy)
1520 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1522 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1523 $(call if_changed,objcopy)
1525 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1526 $(call if_changed,cat)
1530 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1531 --pad-to=$(CONFIG_TPL_PAD_TO)
1532 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1533 $(call if_changed,pad_cat)
1535 SPL: spl/u-boot-spl.bin FORCE
1536 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1538 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1539 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1540 u-boot.cnt: u-boot.bin FORCE
1541 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1543 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1544 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1546 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1547 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1551 u-boot.uim: u-boot.bin FORCE
1552 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1554 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE
1555 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1557 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1559 u-boot.ubl: u-boot-with-spl.bin FORCE
1560 $(call if_changed,mkimage)
1562 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1563 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1564 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1565 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1566 $(call if_changed,mkimage)
1568 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1569 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1570 $(call if_changed,pad_cat)
1572 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1573 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1574 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1575 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1577 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1578 # Both images are created using mkimage (crc etc), so that the ROM
1579 # bootloader can check its integrity. Padding needs to be done to the
1580 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1581 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1582 # The resulting image containing both U-Boot images is called u-boot.spr
1583 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1584 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1585 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1586 $(call if_changed,mkimage)
1588 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1590 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1591 $(call if_changed,pad_cat)
1593 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1594 quiet_cmd_gensplx4 = GENSPLX4 $@
1595 cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \
1596 --pad-to=$(CONFIG_SPL_PAD_TO) \
1597 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \
1598 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1599 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; }
1600 spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE
1601 $(call if_changed,gensplx4)
1603 quiet_cmd_socboot = SOCBOOT $@
1604 cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1605 u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE
1606 $(call if_changed,socboot)
1608 quiet_cmd_gensplpadx4 = GENSPLPADX4 $@
1609 cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1610 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1611 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1612 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1613 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \
1614 { rm -f $@ spl/u-boot-spl.pad; false; }
1615 u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE
1616 $(call if_changed,gensplpadx4)
1618 quiet_cmd_socnandboot = SOCNANDBOOT $@
1619 cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1620 u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE
1621 $(call if_changed,socnandboot)
1625 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1626 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1627 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1628 $(call if_changed,binman)
1630 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1631 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1632 u-boot-br.bin: u-boot FORCE
1633 $(call if_changed,objcopy)
1637 quiet_cmd_ldr = LD $@
1638 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1639 $(filter-out FORCE,$^) -o $@
1642 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1643 u-boot-x86-start16.bin: u-boot FORCE
1644 $(call if_changed,objcopy)
1646 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1647 u-boot-x86-reset16.bin: u-boot FORCE
1648 $(call if_changed,objcopy)
1652 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1653 u-boot-app.efi: u-boot FORCE
1654 $(call if_changed,zobjcopy)
1656 u-boot.bin.o: u-boot.bin FORCE
1657 $(call if_changed,efipayload)
1659 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1660 $(call if_changed_dep,cpp_lds)
1662 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1663 quiet_cmd_u-boot_payload ?= LD $@
1664 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1665 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1666 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1667 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1669 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1670 $(call if_changed,u-boot_payload)
1672 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1673 u-boot-payload.efi: u-boot-payload FORCE
1674 $(call if_changed,zobjcopy)
1676 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1677 $(call if_changed,cat)
1679 #Add a target to create boot binary having SPL binary in PBI format
1680 #concatenated with u-boot binary. It is need by PowerPC SoC having
1681 #internal SRAM <= 512KB.
1682 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1683 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1684 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1686 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1687 $(call if_changed,mkimage)
1690 UBOOT_BINLOAD := u-boot.img
1692 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1693 UBOOT_BINLOAD := u-boot-with-dtb.bin
1695 UBOOT_BINLOAD := u-boot.bin
1699 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1702 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1703 $(call if_changed,pad_cat)
1705 # PPC4xx needs the SPL at the end of the image, since the reset vector
1706 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1707 # and need to introduce a new build target with the full blown U-Boot
1708 # at the start padded up to the start of the SPL image. And then concat
1709 # the SPL image to the end.
1711 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1712 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1713 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1714 $(call if_changed,pad_cat)
1716 quiet_cmd_u-boot-elf ?= LD $@
1717 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1718 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1719 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1720 u-boot.elf: u-boot.bin u-boot-elf.lds
1721 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1722 $(call if_changed,u-boot-elf)
1724 u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
1725 $(call if_changed_dep,cpp_lds)
1727 # MediaTek's ARM-based u-boot needs a header to contains its load address
1728 # which is parsed by the BootROM.
1729 # If the SPL build is enabled, the header will be added to the spl binary,
1730 # and the spl binary and the u-boot.img will be combined into one file.
1731 # Otherwise the header will be added to the u-boot.bin directly.
1733 ifeq ($(CONFIG_SPL),y)
1734 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1736 u-boot-mtk.bin: u-boot-with-spl.bin
1737 $(call if_changed,copy)
1739 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1740 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1741 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1743 u-boot-mtk.bin: u-boot.bin FORCE
1744 $(call if_changed,mkimage)
1747 quiet_cmd_endian_swap = SWAP $@
1748 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@
1750 u-boot-swap.bin: u-boot.bin FORCE
1751 $(call if_changed,endian_swap)
1753 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1755 # Rule to link u-boot
1756 # May be overridden by arch/$(ARCH)/config.mk
1757 quiet_cmd_u-boot__ ?= LD $@
1758 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1759 -T u-boot.lds $(u-boot-init) \
1760 --start-group $(u-boot-main) --end-group \
1761 $(PLATFORM_LIBS) -Map u-boot.map; \
1762 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1764 quiet_cmd_smap = GEN common/system_map.o
1766 smap=`$(call SYSTEM_MAP,u-boot) | \
1767 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1768 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1769 -c $(srctree)/common/system_map.c -o common/system_map.o
1771 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1772 +$(call if_changed,u-boot__)
1773 ifeq ($(CONFIG_KALLSYMS),y)
1775 $(call cmd,u-boot__) common/system_map.o
1778 ifeq ($(CONFIG_RISCV),y)
1779 @tools/prelink-riscv $@ 0
1782 quiet_cmd_sym ?= SYM $@
1783 cmd_sym ?= $(OBJDUMP) -t $< > $@
1784 u-boot.sym: u-boot FORCE
1785 $(call if_changed,sym)
1787 # The actual objects are generated when descending,
1788 # make sure no implicit rule kicks in
1789 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1791 # Handle descending into subdirectories listed in $(u-boot-dirs)
1792 # Preset locale variables to speed up the build process. Limit locale
1793 # tweaks to this spot to avoid wrong language settings when running
1794 # make menuconfig etc.
1795 # Error messages still appears in the original language
1797 PHONY += $(u-boot-dirs)
1798 $(u-boot-dirs): prepare scripts
1799 $(Q)$(MAKE) $(build)=$@
1802 # The "tools" are needed early
1803 $(filter-out tools, $(u-boot-dirs)): tools
1804 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1805 # is "yes"), so compile examples after U-Boot is compiled.
1806 examples: $(filter-out examples, $(u-boot-dirs))
1808 define filechk_uboot.release
1809 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1812 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1813 include/config/uboot.release: include/config/auto.conf FORCE
1814 $(call filechk,uboot.release)
1817 # Things we need to do before we recursively start building the kernel
1818 # or the modules are listed in "prepare".
1819 # A multi level approach is used. prepareN is processed before prepareN-1.
1820 # archprepare is used in arch Makefiles and when processed asm symlink,
1821 # version.h and scripts_basic is processed / created.
1823 # Listed in dependency order
1824 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1826 # prepare3 is used to check if we are building in a separate output directory,
1828 # 1) Check that make has not been executed in the kernel src $(srctree)
1829 prepare3: include/config/uboot.release
1830 ifneq ($(KBUILD_SRC),)
1831 @$(kecho) ' Using $(srctree) as source for U-Boot'
1832 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1833 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1834 echo >&2 " in the '$(srctree)' directory.";\
1839 # prepare2 creates a makefile if using a separate output directory
1840 prepare2: prepare3 outputmakefile cfg
1842 prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) \
1843 include/config/auto.conf
1844 ifeq ($(wildcard $(LDSCRIPT)),)
1845 @echo >&2 " Could not find linker script."
1849 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1850 prepare1: $(defaultenv_h)
1853 archprepare: prepare1 scripts_basic
1855 prepare0: archprepare FORCE
1856 $(Q)$(MAKE) $(build)=.
1858 # All the preparing..
1861 # Generate some files
1862 # ---------------------------------------------------------------------------
1864 # Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers
1865 define filechk_version.h
1866 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1867 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1868 echo \#define U_BOOT_VERSION_NUM $(VERSION); \
1869 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \
1870 sed -e "s/^0*//"); \
1871 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1872 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1875 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1876 # The BSD date on the other hand behaves different and would produce errors
1877 # with the misused '-d' switch. Respect that and search a working date with
1878 # well known pre- and suffixes for the GNU variant of date.
1879 define filechk_timestamp.h
1880 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1881 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1883 for date in gdate date.gnu date; do \
1884 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1886 if test -n "$${DATE}"; then \
1887 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1888 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1889 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1890 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1891 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1892 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \
1897 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1898 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1899 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1900 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1901 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1902 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \
1906 define filechk_defaultenv.h
1910 sed -e 's/\\\x0\s*//g' | \
1911 xxd -i ; echo ", 0x00" ; )
1915 (if test -n "$${DEVICE_TREE}"; then \
1916 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
1918 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
1922 $(version_h): include/config/uboot.release FORCE
1923 $(call filechk,version.h)
1925 $(timestamp_h): $(srctree)/Makefile FORCE
1926 $(call filechk,timestamp.h)
1928 $(dt_h): $(srctree)/Makefile FORCE
1929 $(call filechk,dt.h)
1931 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1932 $(call filechk,defaultenv.h)
1934 # ---------------------------------------------------------------------------
1935 quiet_cmd_cpp_lds = LDS $@
1936 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1937 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1939 u-boot.lds: $(LDSCRIPT) prepare FORCE
1940 $(call if_changed_dep,cpp_lds)
1942 spl/u-boot-spl.bin: spl/u-boot-spl
1946 spl/u-boot-spl-dtb.bin: spl/u-boot-spl
1949 spl/u-boot-spl-dtb.hex: spl/u-boot-spl
1952 spl/u-boot-spl: tools prepare \
1953 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1954 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1955 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1957 spl/sunxi-spl.bin: spl/u-boot-spl
1960 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1963 spl/u-boot-spl.sfp: spl/u-boot-spl
1966 spl/boot.bin: spl/u-boot-spl
1969 tpl/u-boot-tpl.bin: tools prepare \
1970 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1971 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1974 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1980 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1981 -name '*.[chS]' -print`
1985 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1986 -name '*.[chS]' -print`
1988 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1990 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
1991 grep -xvf - cscope.files > cscope.files.no-symlinks; \
1992 mv cscope.files.no-symlinks cscope.files
1997 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
2000 @$(call SYSTEM_MAP,$<) > $@
2002 #########################################################################
2004 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
2005 # R_AARCH64_RELATIVE (64-bit).
2006 checkarmreloc: u-boot
2007 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
2008 grep R_A | sort -u`"; \
2009 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
2010 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
2011 echo "$< contains unexpected relocations: $$RELOC"; \
2015 tools/version.h: include/version.h
2016 $(Q)mkdir -p $(dir $@)
2017 $(call if_changed,copy)
2019 envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2020 $(Q)$(MAKE) $(build)=tools/env
2022 tools-only: export TOOLS_ONLY=y
2023 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2024 $(Q)$(MAKE) $(build)=tools
2026 tools-all: export HOST_TOOLS_ALL=y
2027 tools-all: envtools tools ;
2029 cross_tools: export CROSS_BUILD_TOOLS=y
2030 cross_tools: tools ;
2034 git log --no-merges U-Boot-1_1_5.. | \
2035 unexpand -a | sed -e 's/\s\s*$$//' > $@
2037 #########################################################################
2040 # Cleaning is done on three levels.
2041 # make clean Delete most generated files
2042 # Leave enough to build external modules
2043 # make mrproper Delete the current configuration, and all generated files
2044 # make distclean Remove editor backup files, patch leftover files and the like
2046 # Directories & files removed with 'make clean'
2047 CLEAN_DIRS += $(MODVERDIR) \
2048 $(foreach d, spl tpl, $(patsubst %,$d/%, \
2049 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
2051 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \
2052 boot* u-boot* MLO* SPL System.map fit-dtb.blob* \
2053 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
2054 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
2055 idbloader.img flash.bin flash.log defconfig
2057 # Directories & files removed with 'make mrproper'
2058 MRPROPER_DIRS += include/config include/generated spl tpl \
2059 .tmp_objdiff doc/output
2060 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
2061 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
2062 drivers/video/fonts/*.S
2064 # clean - Delete most, but leave enough to build external modules
2066 clean: rm-dirs := $(CLEAN_DIRS)
2067 clean: rm-files := $(CLEAN_FILES)
2069 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
2071 clean-dirs := $(addprefix _clean_, $(clean-dirs))
2073 PHONY += $(clean-dirs) clean archclean
2075 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
2077 clean: $(clean-dirs)
2080 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
2081 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
2082 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
2083 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
2084 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
2085 -o -name '*.asn1.[ch]' \
2086 -o -name '*.symtypes' -o -name 'modules.order' \
2087 -o -name modules.builtin -o -name '.tmp_*.o.*' \
2088 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
2089 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
2090 -type f -print | xargs rm -f
2092 # mrproper - Delete all generated files, including .config
2094 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
2095 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
2096 mrproper-dirs := $(addprefix _mrproper_,scripts)
2098 PHONY += $(mrproper-dirs) mrproper archmrproper
2100 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
2102 mrproper: clean $(mrproper-dirs)
2105 @rm -f arch/*/include/asm/arch
2112 @find $(srctree) $(RCS_FIND_IGNORE) \
2113 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
2114 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
2115 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
2116 -o -name '*.pyc' \) \
2117 -type f -print | xargs rm -f
2118 @rm -f boards.cfg CHANGELOG
2121 F=`basename $(srctree)` ; cd .. ; \
2122 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2125 @echo 'Cleaning targets:'
2126 @echo ' clean - Remove most generated files but keep the config'
2127 @echo ' mrproper - Remove all generated files + config + various backup files'
2128 @echo ' distclean - mrproper + remove editor backup and patch files'
2130 @echo 'Configuration targets:'
2131 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2133 @echo 'Test targets:'
2135 @echo ' check - Run all automated tests that use sandbox'
2136 @echo ' qcheck - Run quick automated tests that use sandbox'
2137 @echo ' tcheck - Run quick automated tests on tools'
2139 @echo 'Other generic targets:'
2140 @echo ' all - Build all necessary images depending on configuration'
2141 @echo ' tests - Build U-Boot for sandbox and run tests'
2142 @echo '* u-boot - Build the bare u-boot'
2143 @echo ' dir/ - Build all files in dir and below'
2144 @echo ' dir/file.[oisS] - Build specified target only'
2145 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
2146 @echo ' (requires a recent binutils and recent build (System.map))'
2147 @echo ' tags/ctags - Generate ctags file for editors'
2148 @echo ' etags - Generate etags file for editors'
2149 @echo ' cscope - Generate cscope index'
2150 @echo ' ubootrelease - Output the release version string (use with make -s)'
2151 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
2152 @echo " cfg - Don't build, just create the .cfg files"
2153 @echo " envtools - Build only the target-side environment tools"
2155 @echo 'Static analysers'
2156 @echo ' checkstack - Generate a list of stack hogs'
2157 @echo ' coccicheck - Execute static code analysis with Coccinelle'
2159 @echo 'Documentation targets:'
2160 @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2162 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2163 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
2164 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
2165 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
2166 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
2167 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2168 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
2169 @echo ' 1: warnings which may be relevant and do not occur too often'
2170 @echo ' 2: warnings which occur quite often but may still be relevant'
2171 @echo ' 3: more obscure warnings, can most likely be ignored'
2172 @echo ' Multiple levels can be combined with W=12 or W=123'
2174 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
2175 @echo 'For further info see the ./README file'
2181 $(srctree)/test/run quick
2184 $(srctree)/test/run tools
2186 # Documentation targets
2187 # ---------------------------------------------------------------------------
2188 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2189 linkcheckdocs dochelp refcheckdocs
2190 PHONY += $(DOC_TARGETS)
2191 $(DOC_TARGETS): scripts_basic FORCE
2192 $(Q)$(MAKE) $(build)=doc $@
2194 endif #ifeq ($(config-targets),1)
2195 endif #ifeq ($(mixed-targets),1)
2197 PHONY += checkstack ubootrelease ubootversion
2200 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2201 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2204 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
2207 @echo $(UBOOTVERSION)
2210 # ---------------------------------------------------------------------------
2211 # Single targets are compatible with:
2212 # - build with mixed source and output
2213 # - build with separate output dir 'make O=...'
2214 # - external modules
2216 # target-dir => where to store outputfile
2217 # build-dir => directory in kernel source tree to use
2219 ifeq ($(KBUILD_EXTMOD),)
2220 build-dir = $(patsubst %/,%,$(dir $@))
2221 target-dir = $(dir $@)
2223 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2224 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2225 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2228 %.s: %.c prepare scripts FORCE
2229 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2230 %.i: %.c prepare scripts FORCE
2231 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2232 %.o: %.c prepare scripts FORCE
2233 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2234 %.lst: %.c prepare scripts FORCE
2235 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2236 %.s: %.S prepare scripts FORCE
2237 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2238 %.o: %.S prepare scripts FORCE
2239 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2240 %.symtypes: %.c prepare scripts FORCE
2241 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2244 /: prepare scripts FORCE
2246 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2247 $(build)=$(build-dir)
2248 %/: prepare scripts FORCE
2250 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2251 $(build)=$(build-dir)
2252 %.ko: prepare scripts FORCE
2254 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2255 $(build)=$(build-dir) $(@:.ko=.o)
2256 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2258 quiet_cmd_genenv = GENENV $@
2259 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2260 sed --in-place -e 's/\x00/\x0A/g' $@
2262 u-boot-initial-env: u-boot.bin
2263 $(call if_changed,genenv)
2265 # Consistency checks
2266 # ---------------------------------------------------------------------------
2271 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2273 # FIXME Should go into a make.lib or something
2274 # ===========================================================================
2276 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
2277 cmd_rmdirs = rm -rf $(rm-dirs)
2279 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
2280 cmd_rmfiles = rm -f $(rm-files)
2282 # read all saved command lines
2284 cmd_files := $(wildcard .*.cmd $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
2286 ifneq ($(cmd_files),)
2287 $(cmd_files): ; # Do not try to update included dependency files
2288 include $(cmd_files)
2291 endif # skip-makefile
2296 # Declare the contents of the PHONY variable as phony. We keep that
2297 # information in a variable so we can use it in if_changed and friends.