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1 # SPDX-License-Identifier: GPL-2.0+
2
3 VERSION = 2025
4 PATCHLEVEL = 07
5 SUBLEVEL =
6 EXTRAVERSION = -rc5
7 NAME =
8
9 # *DOCUMENTATION*
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.
14
15 # Do not use make's built-in rules and variables
16 # (this increases performance and avoids hard-to-debug behaviour)
17 MAKEFLAGS += -rR
18
19 # Determine target architecture for the sandbox
20 include include/host_arch.h
21 ifeq ("", "$(CROSS_COMPILE)")
22 MK_ARCH="${shell uname -m}"
23 else
24 MK_ARCH="${shell echo $(CROSS_COMPILE) | sed -n 's/^\(.*ccache\)\{0,1\}[[:space:]]*\([^\/]*\/\)*\([^-]*\)-[^[:space:]]*/\3/p'}"
25 endif
26 unexport HOST_ARCH
27 ifeq ("x86_64", $(MK_ARCH))
28 export HOST_ARCH=$(HOST_ARCH_X86_64)
29 else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686"))
30 export HOST_ARCH=$(HOST_ARCH_X86)
31 else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l"))
32 export HOST_ARCH=$(HOST_ARCH_AARCH64)
33 else ifneq (,$(findstring $(MK_ARCH), "arm" "armv5tel" "armv6l" "armv7" "armv7a" "armv7l"))
34 export HOST_ARCH=$(HOST_ARCH_ARM)
35 else ifeq ("riscv32", $(MK_ARCH))
36 export HOST_ARCH=$(HOST_ARCH_RISCV32)
37 else ifeq ("riscv64", $(MK_ARCH))
38 export HOST_ARCH=$(HOST_ARCH_RISCV64)
39 endif
40 undefine MK_ARCH
41
42 # Avoid funny character set dependencies
43 unexport LC_ALL
44 LC_COLLATE=C
45 LC_NUMERIC=C
46 export LC_COLLATE LC_NUMERIC
47
48 # Avoid interference with shell env settings
49 unexport GREP_OPTIONS
50
51 # We are using a recursive build, so we need to do a little thinking
52 # to get the ordering right.
53 #
54 # Most importantly: sub-Makefiles should only ever modify files in
55 # their own directory. If in some directory we have a dependency on
56 # a file in another dir (which doesn't happen often, but it's often
57 # unavoidable when linking the built-in.o targets which finally
58 # turn into vmlinux), we will call a sub make in that other dir, and
59 # after that we are sure that everything which is in that other dir
60 # is now up to date.
61 #
62 # The only cases where we need to modify files which have global
63 # effects are thus separated out and done before the recursive
64 # descending is started. They are now explicitly listed as the
65 # prepare rule.
66
67 # Beautify output
68 # ---------------------------------------------------------------------------
69 #
70 # Normally, we echo the whole command before executing it. By making
71 # that echo $($(quiet)$(cmd)), we now have the possibility to set
72 # $(quiet) to choose other forms of output instead, e.g.
73 #
74 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
75 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
76 #
77 # If $(quiet) is empty, the whole command will be printed.
78 # If it is set to "quiet_", only the short version will be printed.
79 # If it is set to "silent_", nothing will be printed at all, since
80 # the variable $(silent_cmd_cc_o_c) doesn't exist.
81 #
82 # A simple variant is to prefix commands with $(Q) - that's useful
83 # for commands that shall be hidden in non-verbose mode.
84 #
85 # $(Q)ln $@ :<
86 #
87 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
88 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
89 #
90 # To put more focus on warnings, be less verbose as default
91 # Use 'make V=1' to see the full commands
92
93 ifeq ("$(origin V)", "command line")
94 KBUILD_VERBOSE = $(V)
95 endif
96 ifndef KBUILD_VERBOSE
97 KBUILD_VERBOSE = 0
98 endif
99
100 ifeq ($(KBUILD_VERBOSE),1)
101 quiet =
102 Q =
103 else
104 quiet=quiet_
105 Q = @
106 endif
107
108 # If the user is running make -s (silent mode), suppress echoing of
109 # commands
110
111 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
112 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
113 quiet=silent_
114 endif
115 else # make-3.8x
116 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
117 quiet=silent_
118 endif
119 endif
120
121 export quiet Q KBUILD_VERBOSE
122
123 # kbuild supports saving output files in a separate directory.
124 # To locate output files in a separate directory two syntaxes are supported.
125 # In both cases the working directory must be the root of the kernel src.
126 # 1) O=
127 # Use "make O=dir/to/store/output/files/"
128 #
129 # 2) Set KBUILD_OUTPUT
130 # Set the environment variable KBUILD_OUTPUT to point to the directory
131 # where the output files shall be placed.
132 # export KBUILD_OUTPUT=dir/to/store/output/files/
133 # make
134 #
135 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
136 # variable.
137
138 # KBUILD_SRC is set on invocation of make in OBJ directory
139 # KBUILD_SRC is not intended to be used by the regular user (for now)
140 ifeq ($(KBUILD_SRC),)
141
142 # OK, Make called in directory where kernel src resides
143 # Do we want to locate output files in a separate directory?
144 ifeq ("$(origin O)", "command line")
145 KBUILD_OUTPUT := $(O)
146 endif
147
148 # That's our default target when none is given on the command line
149 PHONY := _all
150 _all:
151
152 # Cancel implicit rules on top Makefile
153 $(CURDIR)/Makefile Makefile: ;
154
155 ifneq ($(KBUILD_OUTPUT),)
156 # Invoke a second make in the output directory, passing relevant variables
157 # check that the output directory actually exists
158 saved-output := $(KBUILD_OUTPUT)
159 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
160 && /bin/pwd)
161 $(if $(KBUILD_OUTPUT),, \
162 $(error failed to create output directory "$(saved-output)"))
163
164 # Look for make include files relative to root of kernel src
165 #
166 # This does not become effective immediately because MAKEFLAGS is re-parsed
167 # once after the Makefile is read. It is OK since we are going to invoke
168 # 'sub-make' below.
169 MAKEFLAGS += --include-dir=$(CURDIR)
170
171 PHONY += $(MAKECMDGOALS) sub-make
172
173 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
174 @:
175
176 sub-make: FORCE
177 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
178 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
179
180 # Leave processing to above invocation of make
181 skip-makefile := 1
182 endif # ifneq ($(KBUILD_OUTPUT),)
183 endif # ifeq ($(KBUILD_SRC),)
184
185 # We process the rest of the Makefile if this is the final invocation of make
186 ifeq ($(skip-makefile),)
187
188 # Do not print "Entering directory ...",
189 # but we want to display it when entering to the output directory
190 # so that IDEs/editors are able to understand relative filenames.
191 MAKEFLAGS += --no-print-directory
192
193 # Call a source code checker (by default, "sparse") as part of the
194 # C compilation.
195 #
196 # Use 'make C=1' to enable checking of only re-compiled files.
197 # Use 'make C=2' to enable checking of *all* source files, regardless
198 # of whether they are re-compiled or not.
199 #
200 # See the file "doc/sparse.txt" for more details, including
201 # where to get the "sparse" utility.
202
203 ifeq ("$(origin C)", "command line")
204 KBUILD_CHECKSRC = $(C)
205 endif
206 ifndef KBUILD_CHECKSRC
207 KBUILD_CHECKSRC = 0
208 endif
209
210 # Use make M=dir to specify directory of external module to build
211 # Old syntax make ... SUBDIRS=$PWD is still supported
212 # Setting the environment variable KBUILD_EXTMOD take precedence
213 ifdef SUBDIRS
214 KBUILD_EXTMOD ?= $(SUBDIRS)
215 endif
216
217 ifeq ("$(origin M)", "command line")
218 KBUILD_EXTMOD := $(M)
219 endif
220
221 # If building an external module we do not care about the all: rule
222 # but instead _all depend on modules
223 PHONY += all
224 ifeq ($(KBUILD_EXTMOD),)
225 _all: all
226 else
227 _all: modules
228 endif
229
230 ifeq ($(KBUILD_SRC),)
231 # building in the source tree
232 srctree := .
233 else
234 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
235 # building in a subdirectory of the source tree
236 srctree := ..
237 else
238 srctree := $(KBUILD_SRC)
239 endif
240 endif
241 objtree := .
242 src := $(srctree)
243 obj := $(objtree)
244
245 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
246
247 export srctree objtree VPATH
248
249 # Make sure CDPATH settings don't interfere
250 unexport CDPATH
251
252 #########################################################################
253
254 HOSTARCH := $(shell uname -m | \
255 sed -e s/i.86/x86/ \
256 -e s/sun4u/sparc64/ \
257 -e s/arm.*/arm/ \
258 -e s/sa110/arm/ \
259 -e s/ppc64/powerpc/ \
260 -e s/ppc/powerpc/ \
261 -e s/macppc/powerpc/\
262 -e s/sh.*/sh/)
263
264 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
265 sed -e 's/\(cygwin\).*/cygwin/')
266
267 export HOSTARCH HOSTOS
268
269 #########################################################################
270
271 # set default to nothing for native builds
272 ifeq ($(HOSTARCH),$(ARCH))
273 CROSS_COMPILE ?=
274 endif
275
276 KCONFIG_CONFIG ?= .config
277 export KCONFIG_CONFIG
278
279 # SHELL used by kbuild
280 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
281 else if [ -x /bin/bash ]; then echo /bin/bash; \
282 else echo sh; fi ; fi)
283
284 HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
285 HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
286 HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
287
288 HOSTCC = cc
289 HOSTCXX = c++
290 KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
291 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
292 KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
293 KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
294 KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
295
296 # With the move to GCC 6, we have implicitly upgraded our language
297 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
298 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
299 # have older compilers as their default, so we make it explicit for
300 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
301 CSTD_FLAG := -std=gnu11
302 KBUILD_HOSTCFLAGS += $(CSTD_FLAG)
303
304 ifeq ($(HOSTOS),cygwin)
305 KBUILD_HOSTCFLAGS += -ansi
306 endif
307
308 # Mac OS X / Darwin's C preprocessor is Apple specific. It
309 # generates numerous errors and warnings. We want to bypass it
310 # and use GNU C's cpp. To do this we pass the -traditional-cpp
311 # option to the compiler. Note that the -traditional-cpp flag
312 # DOES NOT have the same semantics as GNU C's flag, all it does
313 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
314 #
315 # Apple's linker is similar, thanks to the new 2 stage linking
316 # multiple symbol definitions are treated as errors, hence the
317 # -multiply_defined suppress option to turn off this error.
318 #
319 ifeq ($(HOSTOS),darwin)
320 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
321 DARWIN_MAJOR_VERSION := $(shell sw_vers -productVersion | cut -f 1 -d '.')
322 DARWIN_MINOR_VERSION := $(shell sw_vers -productVersion | cut -f 2 -d '.')
323
324 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
325 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
326
327 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
328 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
329
330 # Snow Leopards build environment has no longer restrictions as described above
331 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
332 KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
333 KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
334
335 # macOS Mojave (10.14.X)
336 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
337 KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
338 endif
339
340 # Decide whether to build built-in, modular, or both.
341 # Normally, just do built-in.
342
343 KBUILD_MODULES :=
344 KBUILD_BUILTIN := 1
345
346 # If we have only "make modules", don't compile built-in objects.
347 # When we're building modules with modversions, we need to consider
348 # the built-in objects during the descend as well, in order to
349 # make sure the checksums are up to date before we record them.
350
351 ifeq ($(MAKECMDGOALS),modules)
352 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
353 endif
354
355 # If we have "make <whatever> modules", compile modules
356 # in addition to whatever we do anyway.
357 # Just "make" or "make all" shall build modules as well
358
359 # U-Boot does not need modules
360 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
361 # KBUILD_MODULES := 1
362 #endif
363
364 #ifeq ($(MAKECMDGOALS),)
365 # KBUILD_MODULES := 1
366 #endif
367
368 # Check ths size of a binary:
369 # Args:
370 # $1: File to check
371 # #2: Size limit in bytes (decimal or 0xhex)
372 define size_check
373 actual=$$( wc -c $1 | awk '{print $$1}'); \
374 limit=$$( printf "%d" $2 ); \
375 if test $$actual -gt $$limit; then \
376 echo "$1 exceeds file size limit:" >&2; \
377 echo " limit: $$(printf %#x $$limit) bytes" >&2; \
378 echo " actual: $$(printf %#x $$actual) bytes" >&2; \
379 echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\
380 exit 1; \
381 fi
382 endef
383 export size_check
384
385 export KBUILD_MODULES KBUILD_BUILTIN
386 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
387
388 # We need some generic definitions (do not try to remake the file).
389 scripts/Kbuild.include: ;
390 include scripts/Kbuild.include
391
392 # Make variables (CC, etc...)
393
394 AS = $(CROSS_COMPILE)as
395 # Always use GNU ld
396 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
397 LD = $(CROSS_COMPILE)ld.bfd
398 else
399 LD = $(CROSS_COMPILE)ld
400 endif
401 CC = $(CROSS_COMPILE)gcc
402 CPP = $(CC) -E
403 AR = $(CROSS_COMPILE)ar
404 NM = $(CROSS_COMPILE)nm
405 LDR = $(CROSS_COMPILE)ldr
406 STRIP = $(CROSS_COMPILE)strip
407 OBJCOPY = $(CROSS_COMPILE)objcopy
408 OBJDUMP = $(CROSS_COMPILE)objdump
409 READELF = $(CROSS_COMPILE)readelf
410 LEX = flex
411 YACC = bison
412 AWK = awk
413 PERL = perl
414 PYTHON ?= python
415 PYTHON2 = python2
416 PYTHON3 ?= python3
417
418 # The devicetree compiler and pylibfdt are automatically built unless DTC is
419 # provided. If DTC is provided, it is assumed the pylibfdt is available too.
420 DTC_INTREE := $(objtree)/scripts/dtc/dtc
421 DTC ?= $(DTC_INTREE)
422 DTC_MIN_VERSION := 010406
423
424 CHECK = sparse
425
426 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
427 -Wbitwise -Wno-return-void -Wno-unknown-attribute \
428 -D__CHECK_ENDIAN__ $(CF)
429
430 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
431
432 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
433 -Wno-format-security \
434 -fno-builtin -ffreestanding $(CSTD_FLAG)
435 KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
436 KBUILD_AFLAGS := -D__ASSEMBLY__
437 KBUILD_LDFLAGS :=
438
439 ifeq ($(cc-name),clang)
440 ifneq ($(CROSS_COMPILE),)
441 CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%))
442 LDPPFLAGS += $(CLANG_TARGET)
443 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
444 CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR)
445 GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
446 endif
447 ifneq ($(GCC_TOOLCHAIN),)
448 CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
449 endif
450 KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
451 KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
452 KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
453 KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
454 endif
455
456 # Don't generate position independent code
457 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
458 KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
459
460 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
461 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
462 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
463
464 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
465 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
466 export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
467 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
468 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
469 export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
470
471 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
472 export KBUILD_CFLAGS KBUILD_AFLAGS
473
474 export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1)
475
476 # When compiling out-of-tree modules, put MODVERDIR in the module
477 # tree rather than in the kernel tree. The kernel tree might
478 # even be read-only.
479 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
480
481 # Files to ignore in find ... statements
482
483 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
484 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
485 -prune -o
486 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
487 --exclude CVS --exclude .pc --exclude .hg --exclude .git
488
489 export PYTHON_ENABLE
490
491 # This is y if U-Boot should not build any Python tools or libraries. Typically
492 # you would need to set this if those tools/libraries (typically binman and
493 # pylibfdt) cannot be built by your environment and are provided separately.
494 ifeq ($(NO_PYTHON),)
495 PYTHON_ENABLE=y
496 endif
497
498 # ===========================================================================
499 # Rules shared between *config targets and build targets
500
501 # Basic helpers built in scripts/
502 PHONY += scripts_basic
503 scripts_basic:
504 $(Q)$(MAKE) $(build)=scripts/basic
505 $(Q)rm -f .tmp_quiet_recordmcount
506
507 # To avoid any implicit rule to kick in, define an empty command.
508 scripts/basic/%: scripts_basic ;
509
510 PHONY += outputmakefile
511 # outputmakefile generates a Makefile in the output directory, if using a
512 # separate output directory. This allows convenient use of make in the
513 # output directory.
514 outputmakefile:
515 ifneq ($(KBUILD_SRC),)
516 $(Q)ln -fsn $(srctree) source
517 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
518 endif
519
520 # To make sure we do not include .config for any of the *config targets
521 # catch them early, and hand them over to scripts/kconfig/Makefile
522 # It is allowed to specify more targets when calling make, including
523 # mixing *config targets and build targets.
524 # For example 'make oldconfig all'.
525 # Detect when mixed targets is specified, and make a second invocation
526 # of make so .config is not included in this case either (for *config).
527
528 version_h := include/generated/version_autogenerated.h
529 timestamp_h := include/generated/timestamp_autogenerated.h
530 defaultenv_h := include/generated/defaultenv_autogenerated.h
531 dt_h := include/generated/dt.h
532 env_h := include/generated/environment.h
533
534 no-dot-config-targets := clean clobber mrproper distclean \
535 help %docs check% coccicheck \
536 ubootversion backup tests check pcheck qcheck tcheck \
537 pylint pylint_err _pip pip pip_test pip_release
538
539 config-targets := 0
540 mixed-targets := 0
541 dot-config := 1
542
543 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
544 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
545 dot-config := 0
546 endif
547 endif
548
549 ifeq ($(KBUILD_EXTMOD),)
550 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
551 config-targets := 1
552 ifneq ($(words $(MAKECMDGOALS)),1)
553 mixed-targets := 1
554 endif
555 endif
556 endif
557
558 ifeq ($(mixed-targets),1)
559 # ===========================================================================
560 # We're called with mixed targets (*config and build targets).
561 # Handle them one by one.
562
563 PHONY += $(MAKECMDGOALS) __build_one_by_one
564
565 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
566 @:
567
568 __build_one_by_one:
569 $(Q)set -e; \
570 for i in $(MAKECMDGOALS); do \
571 $(MAKE) -f $(srctree)/Makefile $$i; \
572 done
573
574 else
575 ifeq ($(config-targets),1)
576 # ===========================================================================
577 # *config targets only - make sure prerequisites are updated, and descend
578 # in scripts/kconfig to make the *config target
579
580 KBUILD_DEFCONFIG := sandbox_defconfig
581 export KBUILD_DEFCONFIG KBUILD_KCONFIG
582
583 config: scripts_basic outputmakefile FORCE
584 $(Q)$(MAKE) $(build)=scripts/kconfig $@
585
586 %config: scripts_basic outputmakefile FORCE
587 $(Q)$(MAKE) $(build)=scripts/kconfig $@
588
589 else
590 # ===========================================================================
591 # Build targets only - this includes vmlinux, arch specific targets, clean
592 # targets and others. In general all targets except *config targets.
593
594 # Additional helpers built in scripts/
595 # Carefully list dependencies so we do not try to build scripts twice
596 # in parallel
597 PHONY += scripts
598 scripts: scripts_basic scripts_dtc include/config/auto.conf
599 $(Q)$(MAKE) $(build)=$(@)
600
601 ifeq ($(dot-config),1)
602 # Read in config
603 -include include/config/auto.conf
604
605 # Read in dependencies to all Kconfig* files, make sure to run
606 # oldconfig if changes are detected.
607 -include include/config/auto.conf.cmd
608
609 # To avoid any implicit rule to kick in, define an empty command
610 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
611
612 # If .config is newer than include/config/auto.conf, someone tinkered
613 # with it and forgot to run make oldconfig.
614 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
615 # we execute the config step to be sure to catch updated Kconfig files
616 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
617 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
618 @# If the following part fails, include/config/auto.conf should be
619 @# deleted so "make silentoldconfig" will be re-run on the next build.
620 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
621 { rm -f include/config/auto.conf; false; }
622 @# include/config.h has been updated after "make silentoldconfig".
623 @# We need to touch include/config/auto.conf so it gets newer
624 @# than include/config.h.
625 @# Otherwise, 'make silentoldconfig' would be invoked twice.
626 $(Q)touch include/config/auto.conf
627
628 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg vpl/u-boot.cfg:
629 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
630
631 -include include/autoconf.mk
632 -include include/autoconf.mk.dep
633
634 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
635 # is up-to-date. When we switch to a different board configuration, old CONFIG
636 # macros are still remaining in include/config/auto.conf. Without the following
637 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
638 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
639 ifneq ($(wildcard include/config/auto.conf),)
640 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
641 include/config/auto.conf)
642 ifeq ($(autoconf_is_old),)
643 include config.mk
644 include arch/$(ARCH)/Makefile
645 endif
646 endif
647 endif
648
649 # These are set by the arch-specific config.mk. Make sure they are exported
650 # so they can be used when building an EFI application.
651 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
652 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
653 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
654 export CFLAGS_EFI # Compiler flags to add when building EFI app
655 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
656 export EFI_TARGET # binutils target if EFI is natively supported
657
658 export LTO_ENABLE
659
660 # This is y if LTO is enabled for this build. See NO_LTO=1 to disable LTO
661 ifeq ($(NO_LTO),)
662 LTO_ENABLE=$(if $(CONFIG_LTO),y)
663 endif
664
665 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
666 # that (or fail if absent). Otherwise, search for a linker script in a
667 # standard location.
668
669 ifndef LDSCRIPT
670 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
671 ifdef CONFIG_SYS_LDSCRIPT
672 # need to strip off double quotes
673 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
674 endif
675 endif
676
677 # If there is no specified link script, we look in a number of places for it
678 ifndef LDSCRIPT
679 ifeq ($(wildcard $(LDSCRIPT)),)
680 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
681 endif
682 ifeq ($(wildcard $(LDSCRIPT)),)
683 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
684 endif
685 ifeq ($(wildcard $(LDSCRIPT)),)
686 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
687 endif
688 endif
689
690 else
691 # Dummy target needed, because used as prerequisite
692 include/config/auto.conf: ;
693 endif # $(dot-config)
694
695 ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
696 KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -Og -g -fomit-frame-pointer \
697 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
698 # Avoid false positives -Wmaybe-uninitialized
699 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
700 KBUILD_HOSTCFLAGS += -Wno-maybe-uninitialized
701 KBUILD_HOSTCXXFLAGS := -Og -g $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
702 endif
703
704 #
705 # Xtensa linker script cannot be preprocessed with -ansi because of
706 # preprocessor operations on strings that don't make C identifiers.
707 #
708 ifeq ($(CONFIG_XTENSA),)
709 LDPPFLAGS += -ansi
710 endif
711
712 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
713 KBUILD_CFLAGS += -Os
714 endif
715
716 ifdef CONFIG_CC_OPTIMIZE_FOR_SPEED
717 KBUILD_CFLAGS += -O2
718 endif
719
720 ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
721 KBUILD_CFLAGS += -Og
722 # Avoid false positives -Wmaybe-uninitialized
723 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
724 KBUILD_CFLAGS += -Wno-maybe-uninitialized
725 endif
726
727 LTO_CFLAGS :=
728 LTO_FINAL_LDFLAGS :=
729 export LTO_CFLAGS LTO_FINAL_LDFLAGS
730 ifeq ($(LTO_ENABLE),y)
731 ifeq ($(cc-name),clang)
732 LTO_CFLAGS += -DLTO_ENABLE -flto
733 LTO_FINAL_LDFLAGS += -flto
734
735 AR = $(shell $(CC) -print-prog-name=llvm-ar)
736 NM = $(shell $(CC) -print-prog-name=llvm-nm)
737 else
738 NPROC := $(shell nproc 2>/dev/null || echo 1)
739 LTO_CFLAGS += -DLTO_ENABLE -flto=$(NPROC)
740 LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC)
741
742 # use plugin aware tools
743 AR = $(CROSS_COMPILE)gcc-ar
744 NM = $(CROSS_COMPILE)gcc-nm
745 endif
746
747 CFLAGS_NON_EFI += $(LTO_CFLAGS)
748
749 KBUILD_CFLAGS += $(LTO_CFLAGS)
750 endif
751
752 ifeq ($(CONFIG_STACKPROTECTOR),y)
753 KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong)
754 KBUILD_CFLAGS += $(call cc-option,-mstack-protector-guard=global)
755 CFLAGS_EFI += $(call cc-option,-fno-stack-protector)
756 else
757 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
758 endif
759 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
760
761 # disable pointer signed / unsigned warnings in gcc 4.0
762 KBUILD_CFLAGS += -Wno-pointer-sign
763
764 # disable stringop warnings in gcc 8+
765 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
766
767 KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds)
768 KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds)
769 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow)
770
771 # Enabled with W=2, disabled by default as noisy
772 KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized)
773
774 # change __FILE__ to the relative path from the srctree
775 KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
776
777 KBUILD_CFLAGS += -gdwarf-4
778 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
779 # option to the assembler.
780 KBUILD_AFLAGS += -gdwarf-4
781
782 # Report stack usage if supported
783 # ARC tools based on GCC 7.1 has an issue with stack usage
784 # with naked functions, see commit message for more details
785 ifndef CONFIG_ARC
786 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
787 KBUILD_CFLAGS += -fstack-usage
788 endif
789 endif
790
791 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
792 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
793
794 ifdef CONFIG_CC_IS_CLANG
795 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
796 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
797 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
798 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
799 # Quiet clang warning: comparison of unsigned expression < 0 is always false
800 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
801 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
802 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
803 # See modpost pattern 2
804 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
805 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
806 KBUILD_CFLAGS += $(call cc-disable-warning, deprecated-non-prototype)
807 endif
808
809 # These warnings generated too much noise in a regular build.
810 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
811 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
812
813 # Prohibit date/time macros, which would make the build non-deterministic
814 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
815
816 include scripts/Makefile.extrawarn
817
818 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
819 KBUILD_CPPFLAGS += $(KCPPFLAGS)
820 KBUILD_AFLAGS += $(KAFLAGS)
821 KBUILD_CFLAGS += $(KCFLAGS)
822
823 KBUILD_LDFLAGS += -z noexecstack
824 KBUILD_LDFLAGS += -z norelro
825 KBUILD_LDFLAGS += $(call ld-option,--no-warn-rwx-segments)
826
827 KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g)
828
829 # Use UBOOTINCLUDE when you must reference the include/ directory.
830 # Needed to be compatible with the O= option
831 UBOOTINCLUDE := \
832 -Iinclude \
833 $(if $(KBUILD_SRC), -I$(srctree)/include) \
834 $(if $(CONFIG_$(XPL_)MBEDTLS_LIB), \
835 "-DMBEDTLS_CONFIG_FILE=\"mbedtls_def_config.h\"" \
836 -I$(srctree)/lib/mbedtls \
837 -I$(srctree)/lib/mbedtls/port \
838 -I$(srctree)/lib/mbedtls/external/mbedtls \
839 -I$(srctree)/lib/mbedtls/external/mbedtls/include) \
840 $(if $(CONFIG_$(PHASE_)SYS_THUMB_BUILD), \
841 $(if $(CONFIG_HAS_THUMB2), \
842 $(if $(CONFIG_CPU_V7M), \
843 -I$(srctree)/arch/arm/thumb1/include), \
844 -I$(srctree)/arch/arm/thumb1/include)) \
845 -I$(srctree)/arch/$(ARCH)/include \
846 -include $(srctree)/include/linux/kconfig.h \
847 -I$(srctree)/dts/upstream/include \
848 $(if $(CONFIG_NET_LWIP), -I$(srctree)/lib/lwip/lwip/src/include \
849 -I$(srctree)/lib/lwip/u-boot)
850
851 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
852
853 # FIX ME
854 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
855 $(NOSTDINC_FLAGS)
856 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
857
858 #########################################################################
859 # U-Boot objects....order is important (i.e. start must be first)
860
861 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
862
863 libs-$(CONFIG_API) += api/
864 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
865 libs-y += boot/
866 libs-$(CONFIG_CMDLINE) += cmd/
867 libs-y += common/
868 libs-$(CONFIG_OF_EMBED) += dts/
869 libs-y += env/
870 libs-y += lib/
871 libs-y += fs/
872 libs-$(filter y,$(CONFIG_NET) $(CONFIG_NET_LWIP)) += net/
873 libs-y += disk/
874 libs-y += drivers/
875 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
876 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
877 libs-$(CONFIG_$(PHASE_)ALTERA_SDRAM) += drivers/ddr/altera/
878 libs-y += drivers/usb/cdns3/
879 libs-y += drivers/usb/dwc3/
880 libs-y += drivers/usb/common/
881 libs-y += drivers/usb/emul/
882 libs-y += drivers/usb/eth/
883 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
884 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
885 libs-y += drivers/usb/host/
886 libs-y += drivers/usb/mtu3/
887 libs-y += drivers/usb/musb/
888 libs-y += drivers/usb/musb-new/
889 libs-y += drivers/usb/isp1760/
890 libs-y += drivers/usb/phy/
891 libs-y += drivers/usb/tcpm/
892 libs-y += drivers/usb/ulpi/
893 ifdef CONFIG_POST
894 libs-y += post/
895 endif
896 libs-$(CONFIG_$(PHASE_)UNIT_TEST) += test/
897
898 libs-y += $(if $(wildcard $(srctree)/board/$(BOARDDIR)/Makefile),board/$(BOARDDIR)/)
899
900 libs-y := $(sort $(libs-y))
901
902 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
903
904 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
905
906 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
907
908 u-boot-init := $(head-y)
909 u-boot-main := $(libs-y)
910
911
912 # Add GCC lib
913 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
914 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
915 else
916 ifndef CONFIG_CC_IS_CLANG
917 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
918 endif
919 endif
920 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
921
922 ifdef CONFIG_CC_COVERAGE
923 KBUILD_CFLAGS += --coverage
924 PLATFORM_LIBGCC += -lgcov
925 endif
926
927 export PLATFORM_LIBS
928 export PLATFORM_LIBGCC
929
930 # Special flags for CPP when processing the linker script.
931 # Pass the version down so we can handle backwards compatibility
932 # on the fly.
933 LDPPFLAGS += \
934 -include $(srctree)/include/u-boot/u-boot.lds.h \
935 -DCPUDIR=$(CPUDIR) \
936 $(shell $(LD) --version | \
937 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
938
939 #########################################################################
940 #########################################################################
941
942 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
943 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
944 else
945 BOARD_SIZE_CHECK =
946 endif
947
948 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0)
949 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
950 else
951 SPL_SIZE_CHECK =
952 endif
953
954 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0)
955 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
956 else
957 TPL_SIZE_CHECK =
958 endif
959
960 ifneq ($(CONFIG_VPL_SIZE_LIMIT),0x0)
961 VPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_VPL_SIZE_LIMIT))
962 else
963 VPL_SIZE_CHECK =
964 endif
965
966 # Statically apply RELA-style relocations (currently arm64 only)
967 # This is useful for arm64 where static relocation needs to be performed on
968 # the raw binary, but certain simulators only accept an ELF file (but don't
969 # do the relocation).
970 ifneq ($(CONFIG_STATIC_RELA),)
971 # $(2) is u-boot ELF, $(3) is u-boot bin, $(4) is text base
972 quiet_cmd_static_rela = RELOC $@
973 cmd_static_rela = \
974 tools/relocate-rela $(3) $(2)
975 else
976 quiet_cmd_static_rela =
977 cmd_static_rela =
978 endif
979
980 # Always append INPUTS so that arch config.mk's can add custom ones
981 INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
982
983 ifeq ($(CONFIG_SPL_FSL_PBL),y)
984 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
985 else
986 ifneq ($(CONFIG_NXP_ESBC), y)
987 # For Secure Boot The Image needs to be signed and Header must also
988 # be included. So The image has to be built explicitly
989 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
990 endif
991 endif
992 INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin
993 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
994 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
995 else
996 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
997 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
998 else
999 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
1000 endif
1001 endif
1002 INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
1003 INPUTS-$(CONFIG_VPL) += vpl/u-boot-vpl.bin
1004
1005 # Allow omitting the .dtb output if it is not normally used
1006 INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb)
1007 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
1008 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
1009 endif
1010 INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb
1011 ifneq ($(CONFIG_SPL_TARGET),)
1012 INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
1013 endif
1014 INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf
1015 INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi
1016 INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi
1017
1018 # Generate this input file for binman
1019 ifeq ($(CONFIG_SPL),)
1020 ifneq ($(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO)),)
1021 INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
1022 endif
1023 endif
1024
1025 # Add optional build target if defined in board/cpu/soc headers
1026 ifneq ($(CONFIG_BUILD_TARGET),)
1027 INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%)
1028 endif
1029
1030 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1031 INPUTS-y += init_sp_bss_offset_check
1032 endif
1033
1034 ifeq ($(CONFIG_ARCH_ROCKCHIP)_$(CONFIG_SPL_FRAMEWORK),y_)
1035 INPUTS-y += u-boot.img
1036 endif
1037
1038 INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \
1039 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1040 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin)
1041
1042 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
1043
1044 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
1045 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
1046
1047 # ld.lld support
1048 LDFLAGS_u-boot += -z notext $(call ld-option,--apply-dynamic-relocs)
1049
1050 LDFLAGS_u-boot += --build-id=none
1051
1052 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
1053 LDFLAGS_u-boot += -Ttext $(CONFIG_TEXT_BASE)
1054 endif
1055
1056 # make the checker run with the right architecture
1057 CHECKFLAGS += --arch=$(ARCH)
1058
1059 # insure the checker run with the right endianness
1060 CHECKFLAGS += $(if $(CONFIG_SYS_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
1061
1062 # the checker needs the correct machine size
1063 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
1064
1065 # Normally we fill empty space with 0xff
1066 quiet_cmd_objcopy = OBJCOPY $@
1067 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
1068 $(OBJCOPYFLAGS_$(@F)) $< $@
1069
1070 # Provide a version which does not do this, for use by EFI and hex/srec
1071 quiet_cmd_zobjcopy = OBJCOPY $@
1072 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
1073
1074 quiet_cmd_efipayload = OBJCOPY $@
1075 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
1076
1077 MKIMAGEOUTPUT ?= /dev/null
1078
1079 quiet_cmd_mkimage = MKIMAGE $@
1080 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
1081 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1082
1083 quiet_cmd_mkfitimage = MKIMAGE $@
1084 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \
1085 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \
1086 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1087
1088 quiet_cmd_cat = CAT $@
1089 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
1090
1091 append = cat $(filter-out $< $(PHONY), $^) >> $@
1092
1093 quiet_cmd_pad_cat = CAT $@
1094 cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; }
1095
1096 quiet_cmd_lzma = LZMA $@
1097 cmd_lzma = lzma -c -z -k -9 $< > $@
1098
1099 cfg: u-boot.cfg
1100
1101 quiet_cmd_ofcheck = OFCHK $2
1102 cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \
1103 $(srctree)/scripts/of_allowlist.txt
1104
1105 # Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. )
1106 got = $(foreach cfg,$(1),$($(cfg)))
1107
1108 # expected value 'y for each one
1109 expect = $(foreach cfg,$(1),y)
1110
1111 # Show a deprecation message
1112 # Args:
1113 # 1: List of options to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK")
1114 # 2: Name of component (e.g . "Ethernet drivers")
1115 # 3: Release deadline (e.g. "v202.07")
1116 # 4: Condition to require before checking (e.g. "$(CONFIG_NET)")
1117 # Note: Script avoids bash construct, hence the strange double 'if'
1118 # (patches welcome!)
1119 define deprecated
1120 @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \
1121 echo >&2 "===================== WARNING ======================"; \
1122 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \
1123 echo >&2 "for $(2)). Please update the board to use"; \
1124 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \
1125 echo >&2 "update by the deadline may result in board removal."; \
1126 echo >&2 "See doc/develop/driver-model/migration.rst for more info."; \
1127 echo >&2 "===================================================="; \
1128 fi; fi
1129
1130 endef
1131
1132 # Timestamp file to make sure that binman always runs
1133 .binman_stamp: $(INPUTS-y) FORCE
1134 ifeq ($(CONFIG_BINMAN),y)
1135 $(call if_changed,binman)
1136 endif
1137 @touch $@
1138
1139 all: .binman_stamp
1140
1141 ifeq ($(CONFIG_DEPRECATED),y)
1142 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
1143 endif
1144 ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y)
1145 @echo >&2 "===================== WARNING ======================"
1146 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1147 @echo >&2 "be used for debugging purposes. Please use"
1148 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1149 @echo >&2 "See doc/develop/devicetree/control.rst for more info."
1150 @echo >&2 "===================================================="
1151 endif
1152 $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\
1153 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG))
1154 $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY))
1155 @# CFG_SYS_TIMER_RATE has brackets in it for some boards which
1156 @# confuses this rule. Use if() to send just a single character which
1157 @# is enable to tell 'deprecated' that one of these symbols exists
1158 $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CFG_SYS_TIMER_RATE)$(CFG_SYS_TIMER_COUNTER)),x))
1159 $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL))
1160 @# Check that this build does not override OF_HAS_PRIOR_STAGE by
1161 @# disabling OF_BOARD.
1162 $(call cmd,ofcheck,$(KCONFIG_CONFIG))
1163
1164 PHONY += dtbs dtbs_check
1165 dtbs: dts/dt.dtb
1166 @:
1167 dts/dt.dtb: dtbs_prepare u-boot
1168 $(Q)$(MAKE) $(build)=dts dtbs
1169
1170 dtbs_prepare: prepare3
1171
1172 ifneq ($(filter dtbs_check, $(MAKECMDGOALS)),)
1173 export CHECK_DTBS=y
1174 endif
1175
1176 ifneq ($(CHECK_DTBS),)
1177 dtbs_prepare: dt_binding_check
1178 endif
1179
1180 dtbs_check: dt_binding_check dtbs
1181
1182 DT_BINDING_DIR := dts/upstream/Bindings
1183 dt_binding_check: scripts_dtc
1184 $(Q)$(MAKE) $(build)=$(DT_BINDING_DIR) $(DT_BINDING_DIR)/processed-schema.json
1185
1186 quiet_cmd_copy = COPY $@
1187 cmd_copy = cp $< $@
1188
1189 ifeq ($(CONFIG_OF_UPSTREAM),y)
1190 ifeq ($(CONFIG_ARM64),y)
1191 dt_dir := dts/upstream/src/arm64
1192 else
1193 dt_dir := dts/upstream/src/$(ARCH)
1194 endif
1195 else
1196 dt_dir := arch/$(ARCH)/dts
1197 endif
1198
1199 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1200
1201 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1202 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1203 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1204 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1205 else
1206 FINAL_DTB_CONTAINER = fit-dtb.blob
1207 endif
1208
1209 fit-dtb.blob.gz: fit-dtb.blob
1210 @gzip -kf9 $< > $@
1211
1212 fit-dtb.blob.lzo: fit-dtb.blob
1213 @lzop -f9 $< > $@
1214
1215 fit-dtb.blob: dts/dt.dtb FORCE
1216 $(call if_changed,mkimage)
1217 ifneq ($(SOURCE_DATE_EPOCH),)
1218 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1219 chmod 0600 fit-dtb.blob
1220 endif
1221
1222 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1223 -a 0 -e 0 -E \
1224 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1225
1226 MKIMAGEFLAGS_fit-dtb.blob += -B 0x8
1227
1228 ifneq ($(EXT_DTB),)
1229 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1230 $(call if_changed,cat)
1231 else
1232 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1233 $(call if_changed,cat)
1234 endif
1235
1236 u-boot.bin: u-boot-fit-dtb.bin FORCE
1237 $(call if_changed,copy)
1238
1239 ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1240 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1241 $(call if_changed,cat)
1242 endif
1243
1244 else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.)
1245
1246 ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1247 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1248 $(call if_changed,cat)
1249 endif
1250
1251 u-boot.bin: u-boot-dtb.bin FORCE
1252 $(call if_changed,copy)
1253
1254 else
1255 u-boot.bin: u-boot-nodtb.bin FORCE
1256 $(call if_changed,copy)
1257 endif
1258
1259 # we call Makefile in arch/arm/mach-imx which
1260 # has targets which are dependent on targets defined
1261 # here. make could not resolve them and we must ensure
1262 # that they are finished before calling imx targets
1263 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1264 IMX_DEPS = u-boot-fit-dtb.bin
1265 endif
1266
1267 %.imx: $(IMX_DEPS) %.bin
1268 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1269 $(BOARD_SIZE_CHECK)
1270
1271 %.vyb: %.imx
1272 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1273
1274 quiet_cmd_copy = COPY $@
1275 cmd_copy = cp $< $@
1276
1277 u-boot.dtb: dts/dt.dtb
1278 $(call cmd,copy)
1279
1280 OBJCOPYFLAGS_u-boot.hex := -O ihex
1281
1282 OBJCOPYFLAGS_u-boot.srec := -O srec
1283
1284 u-boot.hex u-boot.srec: u-boot FORCE
1285 $(call if_changed,zobjcopy)
1286
1287 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1288
1289 ifeq ($(CONFIG_POSITION_INDEPENDENT)$(CONFIG_RCAR_GEN3),yy)
1290 # The flash_writer tool and previous recovery tools
1291 # require the SREC load address to be 0x5000_0000 .
1292 # The PIE U-Boot build sets the address to 0x0, so
1293 # override the address back to make u-boot-elf.srec
1294 # compatible with the recovery tools.
1295 OBJCOPYFLAGS_u-boot-elf.srec += --change-addresses=0x50000000
1296 endif
1297
1298 u-boot-elf.srec: u-boot.elf FORCE
1299 $(call if_changed,zobjcopy)
1300
1301 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1302
1303 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1304 $(call if_changed,zobjcopy)
1305
1306 %.scif: %.srec
1307 $(Q)$(MAKE) $(build)=arch/arm/mach-renesas $@
1308
1309 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1310 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1311 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),$(if $(CONFIG_OF_SEPARATE),-R .bootpg -R .resetvec))
1312
1313 binary_size_check: u-boot-nodtb.bin FORCE
1314 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{ print $$1 }') ; \
1315 map_size=$(shell cat u-boot.map | \
1316 awk ' \
1317 /_image_copy_start/ { start = $$1 } \
1318 /_image_binary_end/ { end = $$1 } \
1319 END { \
1320 if (start != "" && end != "") \
1321 print end " " start; \
1322 }' \
1323 | sh -c 'read end start && echo $$((end - start))'); \
1324 if [ -n "$$map_size" ]; then \
1325 if test $$map_size -ne $$file_size; then \
1326 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1327 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1328 exit 1; \
1329 fi; \
1330 fi
1331
1332 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1333 ifneq ($(CONFIG_SYS_MALLOC_F),)
1334 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1335 else
1336 subtract_sys_malloc_f_len = true
1337 endif
1338 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1339 # so low that the DTB could probably use 90%+ of the available space, for
1340 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1341 # safe for now and tweak this later if space becomes tight.
1342 # A rejected alternative would be to check that some absolute minimum stack
1343 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1344 # deliberately build-specific, to take account of build-to-build stack usage
1345 # differences due to different feature sets, there is no common absolute value
1346 # to check against.
1347 init_sp_bss_offset_check: u-boot.dtb FORCE
1348 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1349 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1350 $(subtract_sys_malloc_f_len) ; \
1351 quarter_space=$$(($${space} / 4)) ; \
1352 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1353 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1354 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1355 exit 1 ; \
1356 fi
1357 endif
1358
1359 shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
1360
1361 quiet_cmd_objcopy_uboot = OBJCOPY $@
1362 ifdef cmd_static_rela
1363 cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_TEXT_BASE)) || { rm -f $@; false; }
1364 else
1365 cmd_objcopy_uboot = $(cmd_objcopy)
1366 endif
1367
1368 u-boot-nodtb.bin: u-boot FORCE
1369 $(call if_changed,objcopy_uboot)
1370 $(BOARD_SIZE_CHECK)
1371
1372 u-boot.ldr: u-boot
1373 $(CREATE_LDR_ENV)
1374 $(LDR) -T $(CONFIG_LDR_CPU) -c $@ $< $(LDR_FLAGS)
1375 $(BOARD_SIZE_CHECK)
1376
1377 # binman
1378 # ---------------------------------------------------------------------------
1379 # Use 'make BINMAN_DEBUG=1' to enable debugging
1380 # Use 'make BINMAN_VERBOSE=3' to set vebosity level
1381
1382 ifneq ($(EXT_DTB),)
1383 ext_dtb_list := $(basename $(notdir $(EXT_DTB)))
1384 default_dt := $(firstword $(ext_dtb_list))
1385 of_list := "$(ext_dtb_list)"
1386 of_list_dirs := $(dir $(EXT_DTB))
1387 else
1388 of_list := $(CONFIG_OF_LIST)
1389 ifneq ($(CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS),)
1390 of_list_dirs := $(dt_dir) arch/$(ARCH)/dts
1391 else
1392 of_list_dirs := $(dt_dir)
1393 endif
1394 default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE))
1395 endif
1396
1397 binman_dtb := $(shell echo $(CONFIG_BINMAN_DTB))
1398 ifeq ($(strip $(binman_dtb)),)
1399 ifeq ($(CONFIG_OF_EMBED),y)
1400 binman_dtb = ./dts/dt.dtb
1401 else
1402 binman_dtb = ./u-boot.dtb
1403 endif
1404 endif
1405
1406 quiet_cmd_binman = BINMAN $@
1407 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1408 $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \
1409 --toolpath $(objtree)/tools \
1410 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1411 build -u -d $(binman_dtb) -O . -m \
1412 --allow-missing --fake-ext-blobs \
1413 $(if $(BINMAN_ALLOW_MISSING),--ignore-missing) \
1414 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1415 $(foreach f,$(of_list_dirs),-I $(f)) -a of-list=$(of_list) \
1416 $(foreach f,$(BINMAN_INDIRS),-I $(f)) \
1417 -a atf-bl31-path=${BL31} \
1418 -a tee-os-path=${TEE} \
1419 -a ti-dm-path=${TI_DM} \
1420 -a opensbi-path=${OPENSBI} \
1421 -a default-dt=$(default_dt) \
1422 -a scp-path=$(SCP) \
1423 -a rockchip-tpl-path=$(ROCKCHIP_TPL) \
1424 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \
1425 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \
1426 -a vpl-bss-pad=$(if $(CONFIG_VPL_SEPARATE_BSS),,1) \
1427 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \
1428 -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \
1429 -a vpl-dtb=$(CONFIG_VPL_OF_REAL) \
1430 -a pre-load-key-path=${PRE_LOAD_KEY_PATH} \
1431 -a of-spl-remove-props=$(CONFIG_OF_SPL_REMOVE_PROPS) \
1432 $(BINMAN_$(@F))
1433
1434 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1435
1436 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1437
1438 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1439 $(call if_changed,zobjcopy)
1440
1441 ifdef CONFIG_SPL_LOAD_FIT
1442 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1443 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1444 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1445 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1446 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(DEVICE_TREE))) \
1447 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1448 $(patsubst %,-b $(dt_dir)/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1449 else
1450 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1451 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1452 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1453 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1454 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1455 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1456 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1457 endif
1458
1459 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1460
1461 # Some boards have the kwbimage.cfg file written in advance, while some
1462 # other boards generate it on the fly during the build in the build tree.
1463 # Let's check if the file exists in the build tree first, otherwise we
1464 # fall back to use the one in the source tree.
1465 KWD_CONFIG_FILE = $(shell \
1466 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1467 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1468 else \
1469 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1470 fi)
1471
1472 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1473 -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE)
1474
1475 MKIMAGEFLAGS_u-boot-with-spl.kwb = -n $(KWD_CONFIG_FILE) \
1476 -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \
1477 $(if $(KEYDIR),-k $(KEYDIR))
1478
1479 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1480 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -A $(ARCH) -T pblimage
1481
1482 UBOOT_BIN := u-boot.bin
1483
1484 MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
1485 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1486 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1487
1488 u-boot.bin.lzma: u-boot.bin FORCE
1489 $(call if_changed,lzma)
1490
1491 u-boot-lzma.img: u-boot.bin.lzma FORCE
1492 $(call if_changed,mkimage)
1493
1494 fit_image := $(if $(CONFIG_SANDBOX_VPL),u-boot,u-boot-nodtb.bin)
1495
1496 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1497 $(if $(CONFIG_SPL_LOAD_FIT),$(fit_image) \
1498 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
1499 ,$(UBOOT_BIN)) FORCE
1500 $(call if_changed,mkimage)
1501 $(BOARD_SIZE_CHECK)
1502
1503 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1504 MKIMAGEFLAGS_u-boot.itb =
1505 else
1506 MKIMAGEFLAGS_u-boot.itb = -E
1507 endif
1508 MKIMAGEFLAGS_u-boot.itb += -B 0x8
1509
1510 ifdef U_BOOT_ITS
1511 u-boot.itb: u-boot-nodtb.bin \
1512 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
1513 $(if $(CONFIG_MULTI_DTB_FIT),$(FINAL_DTB_CONTAINER)) \
1514 $(U_BOOT_ITS) FORCE
1515 $(call if_changed,mkfitimage)
1516 $(BOARD_SIZE_CHECK)
1517 endif
1518
1519 u-boot-with-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
1520 $(call if_changed,mkimage)
1521 $(BOARD_SIZE_CHECK)
1522
1523 u-boot.dis: u-boot
1524 $(OBJDUMP) -d $< > $@
1525
1526 ifneq ($(CONFIG_SPL_PAYLOAD),)
1527 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1528 else
1529 SPL_PAYLOAD := u-boot.bin
1530 endif
1531
1532 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1533
1534 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1535 --pad-to=$(CONFIG_SPL_PAD_TO)
1536 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1537 $(call if_changed,pad_cat)
1538
1539 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1540 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1541
1542 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1543 $(call if_changed,mkimage)
1544
1545 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1546
1547 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1548 $(call if_changed,objcopy)
1549
1550 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1551
1552 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1553 $(call if_changed,objcopy)
1554
1555 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1556 $(call if_changed,cat)
1557
1558 endif
1559
1560 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1561 --pad-to=$(CONFIG_TPL_PAD_TO)
1562 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1563 $(call if_changed,pad_cat)
1564
1565 SPL: spl/u-boot-spl.bin FORCE
1566 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1567
1568 #ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1569 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1570 u-boot.cnt: u-boot.bin FORCE
1571 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1572
1573 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1574 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1575 else
1576 ifeq ($(CONFIG_BINMAN),y)
1577 flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE
1578 $(call if_changed,binman)
1579 else
1580 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1581 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1582 endif
1583 endif
1584 #endif
1585
1586 u-boot.uim: u-boot.bin FORCE
1587 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1588
1589 u-boot-nand.imx: u-boot.imx FORCE
1590 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1591
1592 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE
1593 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1594
1595 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_TEXT_BASE)
1596
1597 u-boot.ubl: u-boot-with-spl.bin FORCE
1598 $(call if_changed,mkimage)
1599
1600 MKIMAGEFLAGS_u-boot-spl.ais = -s -n "/dev/null" \
1601 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1602 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1603 $(call if_changed,mkimage)
1604
1605 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1606 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1607 $(call if_changed,pad_cat)
1608
1609 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1610 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1611 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1612 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1613
1614 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1615 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1616 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1617 $(call if_changed,mkimage)
1618
1619 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1620 quiet_cmd_gensplx4 = GENSPLX4 $@
1621 cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \
1622 --pad-to=$(CONFIG_SPL_PAD_TO) \
1623 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \
1624 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1625 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; }
1626 spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE
1627 $(call if_changed,gensplx4)
1628
1629 quiet_cmd_socboot = SOCBOOT $@
1630 cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1631 u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE
1632 $(call if_changed,socboot)
1633
1634 quiet_cmd_gensplpadx4 = GENSPLPADX4 $@
1635 cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1636 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1637 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1638 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1639 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \
1640 { rm -f $@ spl/u-boot-spl.pad; false; }
1641 u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE
1642 $(call if_changed,gensplpadx4)
1643
1644 quiet_cmd_socnandboot = SOCNANDBOOT $@
1645 cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1646 u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE
1647 $(call if_changed,socnandboot)
1648
1649 endif
1650
1651 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1652 u-boot-dtb.bin: u-boot-nodtb.bin u-boot.dtb u-boot-br.bin FORCE
1653 $(call if_changed,binman)
1654
1655 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1656 u-boot-br.bin: u-boot FORCE
1657 $(call if_changed,objcopy)
1658 endif
1659
1660 quiet_cmd_ldr = LD $@
1661 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1662 $(filter-out FORCE,$^) -o $@
1663
1664 ifdef CONFIG_X86
1665 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1666 u-boot-x86-start16.bin: u-boot FORCE
1667 $(call if_changed,objcopy)
1668
1669 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1670 u-boot-x86-reset16.bin: u-boot FORCE
1671 $(call if_changed,objcopy)
1672
1673 endif # CONFIG_X86
1674
1675 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1676 u-boot-app.efi: u-boot FORCE
1677 $(call if_changed,zobjcopy)
1678
1679 u-boot.bin.o: u-boot.bin FORCE
1680 $(call if_changed,efipayload)
1681
1682 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1683 $(call if_changed_dep,cpp_lds)
1684
1685 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1686 quiet_cmd_u-boot_payload ?= LD $@
1687 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1688 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1689 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1690 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1691
1692 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1693 $(call if_changed,u-boot_payload)
1694
1695 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1696 u-boot-payload.efi: u-boot-payload FORCE
1697 $(call if_changed,zobjcopy)
1698
1699 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1700 $(call if_changed,cat)
1701
1702 #Add a target to create boot binary having SPL binary in PBI format
1703 #concatenated with u-boot binary. It is need by PowerPC SoC having
1704 #internal SRAM <= 512KB.
1705 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1706 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1707 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1708
1709 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1710 $(call if_changed,mkimage)
1711
1712 ifeq ($(ARCH),arm)
1713 UBOOT_BINLOAD := u-boot.img
1714 else
1715 UBOOT_BINLOAD := u-boot.bin
1716 endif
1717
1718 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1719 --gap-fill=0xff
1720
1721 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1722 $(call if_changed,pad_cat)
1723
1724 quiet_cmd_u-boot-elf ?= LD $@
1725 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1726 $(if $(CONFIG_SYS_BIG_ENDIAN),-EB,-EL) \
1727 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_TEXT_BASE) \
1728 -Ttext=$(CONFIG_TEXT_BASE)
1729 u-boot.elf: u-boot.bin u-boot-elf.lds
1730 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1731 $(call if_changed,u-boot-elf)
1732
1733 u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
1734 $(call if_changed_dep,cpp_lds)
1735
1736 # MediaTek's ARM-based u-boot needs a header to contains its load address
1737 # which is parsed by the BootROM.
1738 # If the SPL build is enabled, the header will be added to the spl binary,
1739 # and the spl binary and the u-boot.img will be combined into one file.
1740 # Otherwise the header will be added to the u-boot.bin directly.
1741
1742 ifeq ($(CONFIG_SPL),y)
1743 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1744
1745 u-boot-mtk.bin: u-boot-with-spl.bin
1746 $(call if_changed,copy)
1747 else
1748 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1749 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \
1750 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1751
1752 u-boot-mtk.bin: u-boot.bin FORCE
1753 $(call if_changed,mkimage)
1754 endif
1755
1756 quiet_cmd_endian_swap = SWAP $@
1757 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@
1758
1759 u-boot-swap.bin: u-boot.bin FORCE
1760 $(call if_changed,endian_swap)
1761
1762 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1763
1764 # Generate linker list symbols references to force compiler to not optimize
1765 # them away when compiling with LTO
1766 ifeq ($(LTO_ENABLE),y)
1767 u-boot-keep-syms-lto := keep-syms-lto.o
1768 u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto))
1769
1770 quiet_cmd_keep_syms_lto = KSL $@
1771 cmd_keep_syms_lto = \
1772 $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
1773
1774 quiet_cmd_keep_syms_lto_cc = KSLCC $@
1775 cmd_keep_syms_lto_cc = \
1776 $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
1777
1778 $(u-boot-keep-syms-lto_c): $(u-boot-main)
1779 $(call if_changed,keep_syms_lto)
1780 $(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c)
1781 $(call if_changed,keep_syms_lto_cc)
1782 else
1783 u-boot-keep-syms-lto :=
1784 endif
1785
1786 # Rule to link u-boot
1787 # May be overridden by arch/$(ARCH)/config.mk
1788 ifeq ($(LTO_ENABLE),y)
1789 quiet_cmd_u-boot__ ?= LTO $@
1790 cmd_u-boot__ ?= \
1791 touch $(u-boot-main) ; \
1792 $(CC) -nostdlib -nostartfiles \
1793 $(LTO_FINAL_LDFLAGS) $(c_flags) \
1794 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \
1795 -T u-boot.lds $(u-boot-init) \
1796 -Wl,--whole-archive \
1797 $(u-boot-main) \
1798 $(u-boot-keep-syms-lto) \
1799 $(PLATFORM_LIBS) \
1800 -Wl,--no-whole-archive \
1801 -Wl,-Map,u-boot.map; \
1802 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1803 else
1804 quiet_cmd_u-boot__ ?= LD $@
1805 cmd_u-boot__ ?= \
1806 touch $(u-boot-main) ; \
1807 $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1808 -T u-boot.lds $(u-boot-init) \
1809 --whole-archive \
1810 $(u-boot-main) \
1811 --no-whole-archive \
1812 $(PLATFORM_LIBS) -Map u-boot.map; \
1813 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1814 endif
1815
1816 quiet_cmd_smap = GEN common/system_map.o
1817 cmd_smap = \
1818 smap=`$(call SYSTEM_MAP,u-boot) | \
1819 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1820 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1821 -c $(srctree)/common/system_map.c -o common/system_map.o
1822
1823 u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE
1824 +$(call if_changed,u-boot__)
1825 ifeq ($(CONFIG_KALLSYMS),y)
1826 $(call cmd,smap)
1827 $(call cmd,u-boot__) common/system_map.o
1828 endif
1829
1830 ifeq ($(CONFIG_RISCV),y)
1831 @tools/prelink-riscv $@
1832 endif
1833
1834 quiet_cmd_sym ?= SYM $@
1835 cmd_sym ?= $(OBJDUMP) -t $< > $@
1836 u-boot.sym: u-boot FORCE
1837 $(call if_changed,sym)
1838
1839 # Environment processing
1840 # ---------------------------------------------------------------------------
1841
1842 # Directory where we expect the .env file, if it exists
1843 ENV_DIR := $(srctree)/board/$(BOARDDIR)
1844
1845 # Basename of .env file, stripping quotes
1846 ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%)
1847
1848 # Filename of .env file
1849 ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env
1850
1851 # Default filename, if CONFIG_ENV_SOURCE_FILE is empty
1852 ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env
1853
1854 # Select between the CONFIG_ENV_SOURCE_FILE and the default one
1855 ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD)))
1856
1857 # Run the environment text file through the preprocessor, but only if it is
1858 # non-empty, to save time and possible build errors if something is wonky with
1859 # the board.
1860 # If there is no ENV_FILE, produce an empty output file, to prevent a previous
1861 # build's file being used in the case of in-tree builds.
1862 quiet_cmd_gen_envp = ENVP $@
1863 cmd_gen_envp = \
1864 if [ -s "$(ENV_FILE)" ]; then \
1865 $(CPP) -P $(cpp_flags) -x assembler-with-cpp -undef \
1866 -D__ASSEMBLY__ \
1867 -D__UBOOT_CONFIG__ \
1868 -DDEFAULT_DEVICE_TREE=$(subst ",,$(CONFIG_DEFAULT_DEVICE_TREE)) \
1869 -I . -I include -I $(srctree)/include \
1870 -include linux/kconfig.h -include include/config.h \
1871 -I$(srctree)/arch/$(ARCH)/include \
1872 $< -o $@; \
1873 else \
1874 rm -f $@; \
1875 touch $@ ; \
1876 fi
1877 include/generated/env.in: include/generated/env.txt
1878 $(call cmd,gen_envp)
1879
1880 # Regenerate the environment if it changes
1881 # We use 'wildcard' since the file is not required to exist (at present), in
1882 # which case we don't want this dependency, but instead should create an empty
1883 # file
1884 # This rule is useful since it shows the source file for the environment
1885 quiet_cmd_envc = ENVC $@
1886 cmd_envc = \
1887 if [ -f "$<" ]; then \
1888 cat $< > $@; \
1889 elif [ -n "$(ENV_SOURCE_FILE)" ]; then \
1890 echo "Missing file $(ENV_FILE_CFG)"; \
1891 else \
1892 touch $@ ; \
1893 fi
1894
1895 include/generated/env.txt: $(wildcard $(ENV_FILE)) include/generated/autoconf.h
1896 $(call cmd,envc)
1897
1898 # Write out the resulting environment, converted to a C string
1899 quiet_cmd_gen_envt = ENVT $@
1900 cmd_gen_envt = \
1901 awk -f $(srctree)/scripts/env2string.awk $< >$@
1902 $(env_h): include/generated/env.in
1903 $(call cmd,gen_envt)
1904
1905 # ---------------------------------------------------------------------------
1906
1907 # The actual objects are generated when descending,
1908 # make sure no implicit rule kicks in
1909 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1910
1911 # Handle descending into subdirectories listed in $(u-boot-dirs)
1912 # Preset locale variables to speed up the build process. Limit locale
1913 # tweaks to this spot to avoid wrong language settings when running
1914 # make menuconfig etc.
1915 # Error messages still appears in the original language
1916
1917 PHONY += $(u-boot-dirs)
1918 $(u-boot-dirs): prepare scripts
1919 $(Q)$(MAKE) $(build)=$@
1920
1921 tools: prepare
1922 # The "tools" are needed early
1923 $(filter-out tools, $(u-boot-dirs)): tools
1924 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1925 # is "yes"), so compile examples after U-Boot is compiled.
1926 examples: $(filter-out examples, $(u-boot-dirs))
1927
1928 # The setlocalversion script comes from linux and expects a
1929 # KERNELVERSION variable in the environment for figuring out which
1930 # annotated tags are relevant. Pass UBOOTVERSION.
1931 define filechk_uboot.release
1932 KERNELVERSION=$(UBOOTVERSION) $(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree)
1933 endef
1934
1935 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1936 include/config/uboot.release: include/config/auto.conf FORCE
1937 $(call filechk,uboot.release)
1938
1939
1940 # Things we need to do before we recursively start building the kernel
1941 # or the modules are listed in "prepare".
1942 # A multi level approach is used. prepareN is processed before prepareN-1.
1943 # archprepare is used in arch Makefiles and when processed asm symlink,
1944 # version.h and scripts_basic is processed / created.
1945
1946 # Listed in dependency order
1947 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1948
1949 # prepare3 is used to check if we are building in a separate output directory,
1950 # and if so do:
1951 # 1) Check that make has not been executed in the kernel src $(srctree)
1952 prepare3: include/config/uboot.release
1953 ifneq ($(KBUILD_SRC),)
1954 @$(kecho) ' Using $(srctree) as source for U-Boot'
1955 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1956 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1957 echo >&2 " in the '$(srctree)' directory.";\
1958 /bin/false; \
1959 fi;
1960 endif
1961
1962 # prepare2 creates a makefile if using a separate output directory
1963 prepare2: prepare3 outputmakefile cfg
1964
1965 prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) $(env_h) \
1966 include/config/auto.conf
1967 ifeq ($(wildcard $(LDSCRIPT)),)
1968 @echo >&2 " Could not find linker script."
1969 @/bin/false
1970 endif
1971
1972 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1973 prepare1: $(defaultenv_h)
1974
1975 envtools: $(defaultenv_h)
1976 endif
1977
1978 archprepare: prepare1 scripts_basic
1979
1980 prepare0: archprepare FORCE
1981 $(Q)$(MAKE) $(build)=.
1982
1983 # All the preparing..
1984 prepare: prepare0
1985
1986 # Generate some files
1987 # ---------------------------------------------------------------------------
1988
1989 # Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers
1990 define filechk_version.h
1991 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1992 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1993 echo \#define U_BOOT_VERSION_NUM $(VERSION); \
1994 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \
1995 sed -e "s/^0*//"); \
1996 echo \#define HOST_ARCH $(HOST_ARCH); \
1997 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1998 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1999 endef
2000
2001 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
2002 # The BSD date on the other hand behaves different and would produce errors
2003 # with the misused '-d' switch. Respect that and search a working date with
2004 # well known pre- and suffixes for the GNU variant of date.
2005 define filechk_timestamp.h
2006 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
2007 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
2008 DATE=""; \
2009 for date in gdate date.gnu date; do \
2010 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
2011 done; \
2012 if test -n "$${DATE}"; then \
2013 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
2014 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
2015 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
2016 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \
2017 else \
2018 return 42; \
2019 fi; \
2020 else \
2021 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
2022 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
2023 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
2024 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \
2025 fi)
2026 endef
2027
2028 define filechk_defaultenv.h
2029 ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \
2030 tr '\n' '\0' | \
2031 sed -e 's/\\\x0\s*//g' | \
2032 xxd -i ; )
2033 endef
2034
2035 define filechk_dt.h
2036 (if test -n "$${DEVICE_TREE}"; then \
2037 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
2038 else \
2039 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
2040 fi)
2041 endef
2042
2043 $(version_h): include/config/uboot.release FORCE
2044 $(call filechk,version.h)
2045
2046 $(timestamp_h): $(srctree)/Makefile FORCE
2047 $(call filechk,timestamp.h)
2048
2049 $(dt_h): $(srctree)/Makefile FORCE
2050 $(call filechk,dt.h)
2051
2052 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
2053 $(call filechk,defaultenv.h)
2054
2055 # ---------------------------------------------------------------------------
2056 # Devicetree files
2057
2058 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),)
2059 dtstree := arch/$(SRCARCH)/boot/dts
2060 endif
2061
2062 ifneq ($(dtstree),)
2063
2064 %.dtb: prepare3 scripts_dtc
2065 $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
2066
2067 PHONY += dtbs dtbs_install
2068 dtbs: prepare3 scripts_dtc
2069 $(Q)$(MAKE) $(build)=$(dtstree)
2070
2071 dtbs_install:
2072 $(Q)$(MAKE) $(dtbinst)=$(dtstree)
2073
2074 endif
2075
2076 # Check dtc and pylibfdt, if DTC is provided, else build them
2077 PHONY += scripts_dtc
2078 scripts_dtc: scripts_basic
2079 $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \
2080 $(MAKE) $(build)=scripts/dtc; \
2081 else \
2082 if ! $(DTC) -v >/dev/null; then \
2083 echo '*** Failed to check dtc version: $(DTC)'; \
2084 false; \
2085 else \
2086 if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \
2087 echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \
2088 false; \
2089 else \
2090 if [ -n "$(CONFIG_PYLIBFDT)" ]; then \
2091 if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \
2092 echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \
2093 false; \
2094 fi; \
2095 fi; \
2096 fi; \
2097 fi; \
2098 fi
2099
2100 # ---------------------------------------------------------------------------
2101 quiet_cmd_cpp_lds = LDS $@
2102 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
2103 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
2104
2105 u-boot.lds: $(LDSCRIPT) prepare FORCE
2106 $(call if_changed_dep,cpp_lds)
2107
2108 spl/u-boot-spl.bin: spl/u-boot-spl
2109 @:
2110 $(SPL_SIZE_CHECK)
2111
2112 spl/u-boot-spl-dtb.bin: spl/u-boot-spl
2113 @:
2114
2115 spl/u-boot-spl-dtb.hex: spl/u-boot-spl
2116 @:
2117
2118 spl/u-boot-spl: tools prepare $(if $(CONFIG_SPL_OF_CONTROL),dts/dt.dtb)
2119 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.xpl all
2120
2121 spl/sunxi-spl.bin: spl/u-boot-spl
2122 @:
2123
2124 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
2125 @:
2126
2127 spl/u-boot-spl.sfp: spl/u-boot-spl
2128 @:
2129
2130 spl/boot.bin: spl/u-boot-spl
2131 @:
2132
2133 tpl/u-boot-tpl.bin: tpl/u-boot-tpl
2134 @:
2135 $(TPL_SIZE_CHECK)
2136
2137 tpl/u-boot-tpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb)
2138 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.xpl all
2139
2140 vpl/u-boot-vpl.bin: vpl/u-boot-vpl
2141 @:
2142 $(VPL_SIZE_CHECK)
2143
2144 vpl/u-boot-vpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb)
2145 $(Q)$(MAKE) obj=vpl -f $(srctree)/scripts/Makefile.xpl all
2146
2147 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
2148
2149 FIND := find
2150 FINDFLAGS := -L
2151
2152 tags ctags:
2153 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2154 -name '*.[chS]' -print`
2155 ln -s ctags tags
2156
2157 etags:
2158 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2159 -name '*.[chS]' -print`
2160 cscope:
2161 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
2162 cscope.files
2163 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
2164 grep -xvf - cscope.files > cscope.files.no-symlinks; \
2165 mv cscope.files.no-symlinks cscope.files
2166 cscope -b -q -k
2167
2168 SYSTEM_MAP = \
2169 $(NM) $1 | \
2170 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
2171 LC_ALL=C sort
2172 System.map: u-boot
2173 @$(call SYSTEM_MAP,$<) > $@
2174
2175 #########################################################################
2176
2177 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
2178 # R_AARCH64_RELATIVE (64-bit).
2179 checkarmreloc: u-boot
2180 @RELOC="`$(READELF) -r -W $< | cut -d ' ' -f 4 | \
2181 grep R_A | sort -u`"; \
2182 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
2183 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
2184 echo "$< contains unexpected relocations: $$RELOC"; \
2185 false; \
2186 fi
2187
2188 tools/version.h: include/version.h
2189 $(Q)mkdir -p $(dir $@)
2190 $(call if_changed,copy)
2191
2192 envtools: u-boot-initial-env scripts_basic $(version_h) $(timestamp_h) tools/version.h
2193 $(Q)$(MAKE) $(build)=tools/env
2194
2195 tools-only: export TOOLS_ONLY=y
2196 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2197 $(Q)$(MAKE) $(build)=tools
2198
2199 tools-all: export HOST_TOOLS_ALL=y
2200 tools-all: envtools tools ;
2201
2202 cross_tools: export CROSS_BUILD_TOOLS=y
2203 cross_tools: tools ;
2204
2205 .PHONY : CHANGELOG
2206 CHANGELOG:
2207 git log --no-merges U-Boot-1_1_5.. | \
2208 unexpand -a | sed -e 's/\s\s*$$//' > $@
2209
2210 #########################################################################
2211
2212 ###
2213 # Cleaning is done on three levels.
2214 # make clean Delete most generated files
2215 # Leave enough to build external modules
2216 # make mrproper Delete the current configuration, and all generated files
2217 # make distclean Remove editor backup files, patch leftover files and the like
2218
2219 # Directories & files removed with 'make clean'
2220 CLEAN_DIRS += $(MODVERDIR) \
2221 $(foreach d, spl tpl vpl, $(patsubst %,$d/%, \
2222 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
2223
2224 CLEAN_FILES += include/autoconf.mk* include/bmp_logo.h include/bmp_logo_data.h \
2225 include/config.h include/generated/env.* drivers/video/u_boot_logo.S \
2226 tools/version.h u-boot* MLO* SPL System.map fit-dtb.blob* \
2227 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
2228 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
2229 idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \
2230 mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \
2231 itb.fit.fit itb.fit.itb itb.map spl.map mkimage-out.rom.mkimage \
2232 mkimage.rom.mkimage mkimage-in-simple-bin* rom.map simple-bin* \
2233 idbloader-spi.img lib/efi_loader/helloworld_efi.S *.itb \
2234 Test* capsule*.*.efi-capsule capsule*.map mkimage.imx-boot.spl \
2235 mkimage.imx-boot.u-boot mkimage-out.imx-boot.spl mkimage-out.imx-boot.u-boot
2236
2237 # Directories & files removed with 'make mrproper'
2238 MRPROPER_DIRS += include/config include/generated spl tpl vpl \
2239 .tmp_objdiff doc/output include/asm
2240
2241 # Remove include/asm symlink created by U-Boot before v2014.01
2242 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
2243 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
2244 drivers/video/fonts/*.S include/asm *imx8mimage* *imx8mcst*
2245
2246 # clean - Delete most, but leave enough to build external modules
2247 #
2248 clean: rm-dirs := $(CLEAN_DIRS)
2249 clean: rm-files := $(CLEAN_FILES)
2250
2251 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
2252
2253 clean-dirs := $(addprefix _clean_, $(clean-dirs))
2254
2255 PHONY += $(clean-dirs) clean archclean
2256 $(clean-dirs):
2257 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
2258
2259 clean: $(clean-dirs)
2260 $(call cmd,rmdirs)
2261 $(call cmd,rmfiles)
2262 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
2263 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
2264 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
2265 -o -name '*.dtb' -o -name '*.dtbo' \
2266 -o -name '*.dtb.S' -o -name '*.dtbo.S' \
2267 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
2268 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
2269 -o -name '*.asn1.[ch]' \
2270 -o -name '*.symtypes' -o -name 'modules.order' \
2271 -o -name modules.builtin -o -name '.tmp_*.o.*' \
2272 -o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \
2273 -o -name 'dsdt_generated.c' \
2274 -o -name 'generated_defconfig' \
2275 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
2276 -type f -print | xargs rm -f
2277
2278 # mrproper - Delete all generated files, including .config
2279 #
2280 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
2281 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
2282 mrproper-dirs := $(addprefix _mrproper_,scripts)
2283
2284 PHONY += $(mrproper-dirs) mrproper archmrproper
2285 $(mrproper-dirs):
2286 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
2287
2288 mrproper: clean $(mrproper-dirs)
2289 $(call cmd,rmdirs)
2290 $(call cmd,rmfiles)
2291 @rm -f arch/*/include/asm/arch
2292
2293 # distclean
2294 #
2295 PHONY += distclean
2296
2297 distclean: mrproper
2298 @find $(srctree) $(RCS_FIND_IGNORE) \
2299 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
2300 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
2301 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
2302 -o -name '*.pyc' \) \
2303 -type f -print | xargs rm -f
2304 @rm -f boards.cfg CHANGELOG
2305
2306 # See doc/develop/python_cq.rst
2307 PHONY += pylint pylint_err
2308 PYLINT_BASE := scripts/pylint.base
2309 PYLINT_CUR := pylint.cur
2310 PYLINT_DIFF := pylint.diff
2311 pylint:
2312 $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)"
2313 $(Q)mkdir -p pylint.out
2314 $(Q)rm -f pylint.out/out*
2315 $(Q)find tools test -name "*.py" \
2316 | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \
2317 sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _
2318 $(Q)rm -f $(PYLINT_CUR)
2319 $(Q)( cd pylint.out; for f in *; do \
2320 sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \
2321 done ) | sort > $(PYLINT_CUR)
2322 $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \
2323 cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \
2324 comm -3 $$base $$cur > $(PYLINT_DIFF); \
2325 if [ -s $(PYLINT_DIFF) ]; then \
2326 echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \
2327 echo; \
2328 echo "Added files:"; \
2329 comm -13 $$base $$cur; \
2330 echo; \
2331 echo "Removed files:"; \
2332 comm -23 $$base $$cur; \
2333 false; \
2334 else \
2335 rm $$base $$cur $(PYLINT_DIFF); \
2336 fi
2337 $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \
2338 if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \
2339 echo "$$base_file: Score was $$base_val, now $$cur_val"; \
2340 bad=true; fi; \
2341 done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \
2342 if $$bad; then \
2343 echo "Some files have regressed, please fix"; \
2344 false; \
2345 else \
2346 echo "No pylint regressions"; \
2347 fi
2348
2349 # Check for errors only
2350 pylint_err:
2351 $(Q)pylint -E -j 0 --ignore-imports=yes \
2352 $(shell find tools test -name "*.py")
2353
2354 backup:
2355 F=`basename $(srctree)` ; cd .. ; \
2356 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2357
2358 PHONY += _pip pip pip_release
2359
2360 pip_release: PIP_ARGS="--real"
2361 pip_test: PIP_ARGS=""
2362 pip: PIP_ARGS="-n"
2363
2364 pip pip_test pip_release: _pip
2365
2366 _pip:
2367 scripts/make_pip.sh u_boot_pylib ${PIP_ARGS}
2368 scripts/make_pip.sh patman ${PIP_ARGS}
2369 scripts/make_pip.sh buildman ${PIP_ARGS}
2370 scripts/make_pip.sh dtoc ${PIP_ARGS}
2371 scripts/make_pip.sh binman ${PIP_ARGS}
2372
2373 help:
2374 @echo 'Cleaning targets:'
2375 @echo ' clean - Remove most generated files but keep the config'
2376 @echo ' mrproper - Remove all generated files + config + various backup files'
2377 @echo ' distclean - mrproper + remove editor backup and patch files'
2378 @echo ''
2379 @echo 'Configuration targets:'
2380 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2381 @echo ''
2382 @echo 'Test targets:'
2383 @echo ''
2384 @echo ' check - Run all automated tests that use sandbox'
2385 @echo ' pcheck - Run quick automated tests in parallel'
2386 @echo ' qcheck - Run quick automated tests that use sandbox'
2387 @echo ' tcheck - Run quick automated tests on tools'
2388 @echo ' pylint - Run pylint on all Python files'
2389 @echo ''
2390 @echo 'Other generic targets:'
2391 @echo ' all - Build all necessary images depending on configuration'
2392 @echo ' tests - Build U-Boot for sandbox and run tests'
2393 @echo '* u-boot - Build the bare u-boot'
2394 @echo ' dir/ - Build all files in dir and below'
2395 @echo ' dir/file.[oisS] - Build specified target only'
2396 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
2397 @echo ' (requires a recent binutils and recent build (System.map))'
2398 @echo ' tags/ctags - Generate ctags file for editors'
2399 @echo ' etags - Generate etags file for editors'
2400 @echo ' cscope - Generate cscope index'
2401 @echo ' ubootrelease - Output the release version string (use with make -s)'
2402 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
2403 @echo " cfg - Don't build, just create the .cfg files"
2404 @echo " envtools - Build only the target-side environment tools"
2405 @echo ''
2406 @echo 'PyPi / pip targets:'
2407 @echo ' pip - Check building of PyPi packages'
2408 @echo ' pip_test - Build PyPi pakages and upload to test server'
2409 @echo ' pip_release - Build PyPi pakages and upload to release server'
2410 @echo ''
2411 @echo 'Static analysers'
2412 @echo ' checkstack - Generate a list of stack hogs'
2413 @echo ' coccicheck - Execute static code analysis with Coccinelle'
2414 @echo ''
2415 @echo 'Documentation targets:'
2416 @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2417 @echo ''
2418 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2419 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
2420 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
2421 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
2422 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
2423 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2424 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
2425 @echo ' 1: warnings which may be relevant and do not occur too often'
2426 @echo ' 2: warnings which occur quite often but may still be relevant'
2427 @echo ' 3: more obscure warnings, can most likely be ignored'
2428 @echo ' Multiple levels can be combined with W=12 or W=123'
2429 @echo ''
2430 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
2431 @echo 'For further info see the ./README file'
2432
2433 tests check:
2434 $(srctree)/test/run
2435
2436 pcheck:
2437 $(srctree)/test/run parallel
2438
2439 qcheck:
2440 $(srctree)/test/run quick
2441
2442 tcheck:
2443 $(srctree)/test/run tools
2444
2445 # Documentation targets
2446 # ---------------------------------------------------------------------------
2447 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2448 linkcheckdocs dochelp refcheckdocs texinfodocs infodocs
2449 PHONY += $(DOC_TARGETS)
2450 $(DOC_TARGETS): scripts_basic FORCE
2451 $(Q)PYTHONPATH=$(srctree)/test/py/tests:$(srctree)/test/py \
2452 $(MAKE) $(build)=doc $@
2453
2454 PHONY += checkstack ubootrelease ubootversion
2455
2456 checkstack:
2457 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2458 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2459
2460 ubootrelease:
2461 @$(filechk_uboot.release)
2462
2463 ubootversion:
2464 @echo $(UBOOTVERSION)
2465
2466 # Single targets
2467 # ---------------------------------------------------------------------------
2468 # Single targets are compatible with:
2469 # - build with mixed source and output
2470 # - build with separate output dir 'make O=...'
2471 # - external modules
2472 #
2473 # target-dir => where to store outputfile
2474 # build-dir => directory in kernel source tree to use
2475
2476 ifeq ($(KBUILD_EXTMOD),)
2477 build-dir = $(patsubst %/,%,$(dir $@))
2478 target-dir = $(dir $@)
2479 else
2480 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2481 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2482 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2483 endif
2484
2485 %.s: %.c prepare scripts FORCE
2486 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2487 %.i: %.c prepare scripts FORCE
2488 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2489 %.o: %.c prepare scripts FORCE
2490 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2491 %.lst: %.c prepare scripts FORCE
2492 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2493 %.s: %.S prepare scripts FORCE
2494 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2495 %.o: %.S prepare scripts FORCE
2496 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2497 %.symtypes: %.c prepare scripts FORCE
2498 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2499
2500 # Modules
2501 /: prepare scripts FORCE
2502 $(cmd_crmodverdir)
2503 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2504 $(build)=$(build-dir)
2505 %/: prepare scripts FORCE
2506 $(cmd_crmodverdir)
2507 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2508 $(build)=$(build-dir)
2509 %.ko: prepare scripts FORCE
2510 $(cmd_crmodverdir)
2511 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2512 $(build)=$(build-dir) $(@:.ko=.o)
2513 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2514
2515 quiet_cmd_genenv = GENENV $@
2516 cmd_genenv = \
2517 $(objtree)/tools/printinitialenv | \
2518 sed -e '/^\s*$$/d' | \
2519 sort -t '=' -k 1,1 -s -o $@
2520
2521 u-boot-initial-env: scripts_basic $(version_h) $(env_h) include/config.h FORCE
2522 $(Q)$(MAKE) $(build)=tools $(objtree)/tools/printinitialenv
2523 $(call if_changed,genenv)
2524
2525 # Consistency checks
2526 # ---------------------------------------------------------------------------
2527
2528 PHONY += coccicheck
2529
2530 coccicheck:
2531 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2532
2533 # FIXME Should go into a make.lib or something
2534 # ===========================================================================
2535
2536 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
2537 cmd_rmdirs = rm -rf $(rm-dirs)
2538
2539 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
2540 cmd_rmfiles = rm -f $(rm-files)
2541
2542 # read all saved command lines
2543
2544 cmd_files := $(wildcard .*.cmd)
2545
2546 ifneq ($(cmd_files),)
2547 $(cmd_files): ; # Do not try to update included dependency files
2548 include $(cmd_files)
2549 endif
2550
2551 endif #ifeq ($(config-targets),1)
2552 endif #ifeq ($(mixed-targets),1)
2553 endif # skip-makefile
2554
2555 PHONY += FORCE
2556 FORCE:
2557
2558 # Declare the contents of the PHONY variable as phony. We keep that
2559 # information in a variable so we can use it in if_changed and friends.
2560 .PHONY: $(PHONY)
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