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1 #
2 # SPDX-License-Identifier: GPL-2.0+
3 #
4
5 VERSION = 2016
6 PATCHLEVEL = 01
7 SUBLEVEL =
8 EXTRAVERSION =
9 NAME =
10
11 # *DOCUMENTATION*
12 # To see a list of typical targets execute "make help"
13 # More info can be located in ./README
14 # Comments in this file are targeted only to the developer, do not
15 # expect to learn how to build the kernel reading this file.
16
17 # o Do not use make's built-in rules and variables
18 # (this increases performance and avoids hard-to-debug behaviour);
19 # o Look for make include files relative to root of kernel src
20 MAKEFLAGS += -rR --include-dir=$(CURDIR)
21
22 # Avoid funny character set dependencies
23 unexport LC_ALL
24 LC_COLLATE=C
25 LC_NUMERIC=C
26 export LC_COLLATE LC_NUMERIC
27
28 # Avoid interference with shell env settings
29 unexport GREP_OPTIONS
30
31 # We are using a recursive build, so we need to do a little thinking
32 # to get the ordering right.
33 #
34 # Most importantly: sub-Makefiles should only ever modify files in
35 # their own directory. If in some directory we have a dependency on
36 # a file in another dir (which doesn't happen often, but it's often
37 # unavoidable when linking the built-in.o targets which finally
38 # turn into vmlinux), we will call a sub make in that other dir, and
39 # after that we are sure that everything which is in that other dir
40 # is now up to date.
41 #
42 # The only cases where we need to modify files which have global
43 # effects are thus separated out and done before the recursive
44 # descending is started. They are now explicitly listed as the
45 # prepare rule.
46
47 # Beautify output
48 # ---------------------------------------------------------------------------
49 #
50 # Normally, we echo the whole command before executing it. By making
51 # that echo $($(quiet)$(cmd)), we now have the possibility to set
52 # $(quiet) to choose other forms of output instead, e.g.
53 #
54 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
55 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
56 #
57 # If $(quiet) is empty, the whole command will be printed.
58 # If it is set to "quiet_", only the short version will be printed.
59 # If it is set to "silent_", nothing will be printed at all, since
60 # the variable $(silent_cmd_cc_o_c) doesn't exist.
61 #
62 # A simple variant is to prefix commands with $(Q) - that's useful
63 # for commands that shall be hidden in non-verbose mode.
64 #
65 # $(Q)ln $@ :<
66 #
67 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
68 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
69 #
70 # To put more focus on warnings, be less verbose as default
71 # Use 'make V=1' to see the full commands
72
73 ifeq ("$(origin V)", "command line")
74 KBUILD_VERBOSE = $(V)
75 endif
76 ifndef KBUILD_VERBOSE
77 KBUILD_VERBOSE = 0
78 endif
79
80 ifeq ($(KBUILD_VERBOSE),1)
81 quiet =
82 Q =
83 else
84 quiet=quiet_
85 Q = @
86 endif
87
88 # If the user is running make -s (silent mode), suppress echoing of
89 # commands
90
91 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
92 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
93 quiet=silent_
94 endif
95 else # make-3.8x
96 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
97 quiet=silent_
98 endif
99 endif
100
101 export quiet Q KBUILD_VERBOSE
102
103 # kbuild supports saving output files in a separate directory.
104 # To locate output files in a separate directory two syntaxes are supported.
105 # In both cases the working directory must be the root of the kernel src.
106 # 1) O=
107 # Use "make O=dir/to/store/output/files/"
108 #
109 # 2) Set KBUILD_OUTPUT
110 # Set the environment variable KBUILD_OUTPUT to point to the directory
111 # where the output files shall be placed.
112 # export KBUILD_OUTPUT=dir/to/store/output/files/
113 # make
114 #
115 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
116 # variable.
117
118 # KBUILD_SRC is set on invocation of make in OBJ directory
119 # KBUILD_SRC is not intended to be used by the regular user (for now)
120 ifeq ($(KBUILD_SRC),)
121
122 # OK, Make called in directory where kernel src resides
123 # Do we want to locate output files in a separate directory?
124 ifeq ("$(origin O)", "command line")
125 KBUILD_OUTPUT := $(O)
126 endif
127
128 # That's our default target when none is given on the command line
129 PHONY := _all
130 _all:
131
132 # Cancel implicit rules on top Makefile
133 $(CURDIR)/Makefile Makefile: ;
134
135 ifneq ($(KBUILD_OUTPUT),)
136 # Invoke a second make in the output directory, passing relevant variables
137 # check that the output directory actually exists
138 saved-output := $(KBUILD_OUTPUT)
139 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
140 && /bin/pwd)
141 $(if $(KBUILD_OUTPUT),, \
142 $(error failed to create output directory "$(saved-output)"))
143
144 PHONY += $(MAKECMDGOALS) sub-make
145
146 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
147 @:
148
149 sub-make: FORCE
150 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
151 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
152
153 # Leave processing to above invocation of make
154 skip-makefile := 1
155 endif # ifneq ($(KBUILD_OUTPUT),)
156 endif # ifeq ($(KBUILD_SRC),)
157
158 # We process the rest of the Makefile if this is the final invocation of make
159 ifeq ($(skip-makefile),)
160
161 # Do not print "Entering directory ...",
162 # but we want to display it when entering to the output directory
163 # so that IDEs/editors are able to understand relative filenames.
164 MAKEFLAGS += --no-print-directory
165
166 # Call a source code checker (by default, "sparse") as part of the
167 # C compilation.
168 #
169 # Use 'make C=1' to enable checking of only re-compiled files.
170 # Use 'make C=2' to enable checking of *all* source files, regardless
171 # of whether they are re-compiled or not.
172 #
173 # See the file "Documentation/sparse.txt" for more details, including
174 # where to get the "sparse" utility.
175
176 ifeq ("$(origin C)", "command line")
177 KBUILD_CHECKSRC = $(C)
178 endif
179 ifndef KBUILD_CHECKSRC
180 KBUILD_CHECKSRC = 0
181 endif
182
183 # Use make M=dir to specify directory of external module to build
184 # Old syntax make ... SUBDIRS=$PWD is still supported
185 # Setting the environment variable KBUILD_EXTMOD take precedence
186 ifdef SUBDIRS
187 KBUILD_EXTMOD ?= $(SUBDIRS)
188 endif
189
190 ifeq ("$(origin M)", "command line")
191 KBUILD_EXTMOD := $(M)
192 endif
193
194 # If building an external module we do not care about the all: rule
195 # but instead _all depend on modules
196 PHONY += all
197 ifeq ($(KBUILD_EXTMOD),)
198 _all: all
199 else
200 _all: modules
201 endif
202
203 ifeq ($(KBUILD_SRC),)
204 # building in the source tree
205 srctree := .
206 else
207 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
208 # building in a subdirectory of the source tree
209 srctree := ..
210 else
211 srctree := $(KBUILD_SRC)
212 endif
213 endif
214 objtree := .
215 src := $(srctree)
216 obj := $(objtree)
217
218 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
219
220 export srctree objtree VPATH
221
222 # Make sure CDPATH settings don't interfere
223 unexport CDPATH
224
225 #########################################################################
226
227 HOSTARCH := $(shell uname -m | \
228 sed -e s/i.86/x86/ \
229 -e s/sun4u/sparc64/ \
230 -e s/arm.*/arm/ \
231 -e s/sa110/arm/ \
232 -e s/ppc64/powerpc/ \
233 -e s/ppc/powerpc/ \
234 -e s/macppc/powerpc/\
235 -e s/sh.*/sh/)
236
237 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
238 sed -e 's/\(cygwin\).*/cygwin/')
239
240 export HOSTARCH HOSTOS
241
242 #########################################################################
243
244 # set default to nothing for native builds
245 ifeq ($(HOSTARCH),$(ARCH))
246 CROSS_COMPILE ?=
247 endif
248
249 KCONFIG_CONFIG ?= .config
250 export KCONFIG_CONFIG
251
252 # SHELL used by kbuild
253 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
254 else if [ -x /bin/bash ]; then echo /bin/bash; \
255 else echo sh; fi ; fi)
256
257 HOSTCC = cc
258 HOSTCXX = c++
259 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
260 HOSTCXXFLAGS = -O2
261
262 ifeq ($(HOSTOS),cygwin)
263 HOSTCFLAGS += -ansi
264 endif
265
266 # Mac OS X / Darwin's C preprocessor is Apple specific. It
267 # generates numerous errors and warnings. We want to bypass it
268 # and use GNU C's cpp. To do this we pass the -traditional-cpp
269 # option to the compiler. Note that the -traditional-cpp flag
270 # DOES NOT have the same semantics as GNU C's flag, all it does
271 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
272 #
273 # Apple's linker is similar, thanks to the new 2 stage linking
274 # multiple symbol definitions are treated as errors, hence the
275 # -multiply_defined suppress option to turn off this error.
276 #
277 ifeq ($(HOSTOS),darwin)
278 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
279 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
280 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
281
282 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
283 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
284
285 # Snow Leopards build environment has no longer restrictions as described above
286 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
287 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
288 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
289
290 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
291 # in some host tools which is a problem then ... so disable ASLR for these
292 # tools
293 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
294 endif
295
296 # Decide whether to build built-in, modular, or both.
297 # Normally, just do built-in.
298
299 KBUILD_MODULES :=
300 KBUILD_BUILTIN := 1
301
302 # If we have only "make modules", don't compile built-in objects.
303 # When we're building modules with modversions, we need to consider
304 # the built-in objects during the descend as well, in order to
305 # make sure the checksums are up to date before we record them.
306
307 ifeq ($(MAKECMDGOALS),modules)
308 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
309 endif
310
311 # If we have "make <whatever> modules", compile modules
312 # in addition to whatever we do anyway.
313 # Just "make" or "make all" shall build modules as well
314
315 # U-Boot does not need modules
316 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
317 # KBUILD_MODULES := 1
318 #endif
319
320 #ifeq ($(MAKECMDGOALS),)
321 # KBUILD_MODULES := 1
322 #endif
323
324 export KBUILD_MODULES KBUILD_BUILTIN
325 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
326
327 # We need some generic definitions (do not try to remake the file).
328 scripts/Kbuild.include: ;
329 include scripts/Kbuild.include
330
331 # Make variables (CC, etc...)
332
333 AS = $(CROSS_COMPILE)as
334 # Always use GNU ld
335 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
336 LD = $(CROSS_COMPILE)ld.bfd
337 else
338 LD = $(CROSS_COMPILE)ld
339 endif
340 CC = $(CROSS_COMPILE)gcc
341 CPP = $(CC) -E
342 AR = $(CROSS_COMPILE)ar
343 NM = $(CROSS_COMPILE)nm
344 LDR = $(CROSS_COMPILE)ldr
345 STRIP = $(CROSS_COMPILE)strip
346 OBJCOPY = $(CROSS_COMPILE)objcopy
347 OBJDUMP = $(CROSS_COMPILE)objdump
348 AWK = awk
349 PERL = perl
350 PYTHON = python
351 DTC = dtc
352 CHECK = sparse
353
354 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
355 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
356
357 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
358
359 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
360 -Wno-format-security \
361 -fno-builtin -ffreestanding
362 KBUILD_AFLAGS := -D__ASSEMBLY__
363
364 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
365 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
366 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
367
368 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
369 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
370 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
371 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
372 export MAKE AWK PERL PYTHON
373 export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
374
375 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
376 export KBUILD_CFLAGS KBUILD_AFLAGS
377
378 # When compiling out-of-tree modules, put MODVERDIR in the module
379 # tree rather than in the kernel tree. The kernel tree might
380 # even be read-only.
381 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
382
383 # Files to ignore in find ... statements
384
385 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
386 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
387 -prune -o
388 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
389 --exclude CVS --exclude .pc --exclude .hg --exclude .git
390
391 # ===========================================================================
392 # Rules shared between *config targets and build targets
393
394 # Basic helpers built in scripts/
395 PHONY += scripts_basic
396 scripts_basic:
397 $(Q)$(MAKE) $(build)=scripts/basic
398 $(Q)rm -f .tmp_quiet_recordmcount
399
400 # To avoid any implicit rule to kick in, define an empty command.
401 scripts/basic/%: scripts_basic ;
402
403 PHONY += outputmakefile
404 # outputmakefile generates a Makefile in the output directory, if using a
405 # separate output directory. This allows convenient use of make in the
406 # output directory.
407 outputmakefile:
408 ifneq ($(KBUILD_SRC),)
409 $(Q)ln -fsn $(srctree) source
410 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
411 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
412 endif
413
414 # To make sure we do not include .config for any of the *config targets
415 # catch them early, and hand them over to scripts/kconfig/Makefile
416 # It is allowed to specify more targets when calling make, including
417 # mixing *config targets and build targets.
418 # For example 'make oldconfig all'.
419 # Detect when mixed targets is specified, and make a second invocation
420 # of make so .config is not included in this case either (for *config).
421
422 version_h := include/generated/version_autogenerated.h
423 timestamp_h := include/generated/timestamp_autogenerated.h
424
425 no-dot-config-targets := clean clobber mrproper distclean \
426 help %docs check% coccicheck \
427 ubootversion backup
428
429 config-targets := 0
430 mixed-targets := 0
431 dot-config := 1
432
433 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
434 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
435 dot-config := 0
436 endif
437 endif
438
439 ifeq ($(KBUILD_EXTMOD),)
440 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
441 config-targets := 1
442 ifneq ($(words $(MAKECMDGOALS)),1)
443 mixed-targets := 1
444 endif
445 endif
446 endif
447
448 ifeq ($(mixed-targets),1)
449 # ===========================================================================
450 # We're called with mixed targets (*config and build targets).
451 # Handle them one by one.
452
453 PHONY += $(MAKECMDGOALS) __build_one_by_one
454
455 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
456 @:
457
458 __build_one_by_one:
459 $(Q)set -e; \
460 for i in $(MAKECMDGOALS); do \
461 $(MAKE) -f $(srctree)/Makefile $$i; \
462 done
463
464 else
465 ifeq ($(config-targets),1)
466 # ===========================================================================
467 # *config targets only - make sure prerequisites are updated, and descend
468 # in scripts/kconfig to make the *config target
469
470 KBUILD_DEFCONFIG := sandbox_defconfig
471 export KBUILD_DEFCONFIG KBUILD_KCONFIG
472
473 config: scripts_basic outputmakefile FORCE
474 $(Q)$(MAKE) $(build)=scripts/kconfig $@
475
476 %config: scripts_basic outputmakefile FORCE
477 $(Q)$(MAKE) $(build)=scripts/kconfig $@
478
479 else
480 # ===========================================================================
481 # Build targets only - this includes vmlinux, arch specific targets, clean
482 # targets and others. In general all targets except *config targets.
483
484 ifeq ($(dot-config),1)
485 # Read in config
486 -include include/config/auto.conf
487
488 # Read in dependencies to all Kconfig* files, make sure to run
489 # oldconfig if changes are detected.
490 -include include/config/auto.conf.cmd
491
492 # To avoid any implicit rule to kick in, define an empty command
493 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
494
495 # If .config is newer than include/config/auto.conf, someone tinkered
496 # with it and forgot to run make oldconfig.
497 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
498 # we execute the config step to be sure to catch updated Kconfig files
499 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
500 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
501 @# If the following part fails, include/config/auto.conf should be
502 @# deleted so "make silentoldconfig" will be re-run on the next build.
503 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
504 { rm -f include/config/auto.conf; false; }
505 @# include/config.h has been updated after "make silentoldconfig".
506 @# We need to touch include/config/auto.conf so it gets newer
507 @# than include/config.h.
508 @# Otherwise, 'make silentoldconfig' would be invoked twice.
509 $(Q)touch include/config/auto.conf
510
511 -include include/autoconf.mk
512 -include include/autoconf.mk.dep
513
514 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
515 # is up-to-date. When we switch to a different board configuration, old CONFIG
516 # macros are still remaining in include/config/auto.conf. Without the following
517 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
518 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
519 ifneq ($(wildcard include/config/auto.conf),)
520 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
521 include/config/auto.conf)
522 ifeq ($(autoconf_is_old),)
523 include config.mk
524 include arch/$(ARCH)/Makefile
525 endif
526 endif
527 endif
528
529 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
530 # that (or fail if absent). Otherwise, search for a linker script in a
531 # standard location.
532
533 ifndef LDSCRIPT
534 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
535 ifdef CONFIG_SYS_LDSCRIPT
536 # need to strip off double quotes
537 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
538 endif
539 endif
540
541 # If there is no specified link script, we look in a number of places for it
542 ifndef LDSCRIPT
543 ifeq ($(wildcard $(LDSCRIPT)),)
544 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
545 endif
546 ifeq ($(wildcard $(LDSCRIPT)),)
547 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
548 endif
549 ifeq ($(wildcard $(LDSCRIPT)),)
550 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
551 endif
552 endif
553
554 else
555 # Dummy target needed, because used as prerequisite
556 include/config/auto.conf: ;
557 endif # $(dot-config)
558
559 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
560 KBUILD_CFLAGS += -Os
561 else
562 KBUILD_CFLAGS += -O2
563 endif
564
565 ifdef BUILD_TAG
566 KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
567 endif
568
569 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
570 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
571
572 KBUILD_CFLAGS += -g
573 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
574 # option to the assembler.
575 KBUILD_AFLAGS += -g
576
577 # Report stack usage if supported
578 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
579 KBUILD_CFLAGS += -fstack-usage
580 endif
581
582 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
583
584 # turn jbsr into jsr for m68k
585 ifeq ($(ARCH),m68k)
586 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
587 KBUILD_AFLAGS += -Wa,-gstabs,-S
588 endif
589 endif
590
591 # Prohibit date/time macros, which would make the build non-deterministic
592 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
593
594 ifneq ($(CONFIG_SYS_TEXT_BASE),)
595 KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
596 endif
597
598 export CONFIG_SYS_TEXT_BASE
599
600 include scripts/Makefile.extrawarn
601
602 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
603 KBUILD_CPPFLAGS += $(KCPPFLAGS)
604 KBUILD_AFLAGS += $(KAFLAGS)
605 KBUILD_CFLAGS += $(KCFLAGS)
606
607 # Use UBOOTINCLUDE when you must reference the include/ directory.
608 # Needed to be compatible with the O= option
609 UBOOTINCLUDE := \
610 -Iinclude \
611 $(if $(KBUILD_SRC), -I$(srctree)/include) \
612 $(if $(CONFIG_SYS_THUMB_BUILD), $(if $(CONFIG_HAS_THUMB2),, \
613 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
614 -I$(srctree)/arch/$(ARCH)/include \
615 -include $(srctree)/include/linux/kconfig.h
616
617 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
618 CHECKFLAGS += $(NOSTDINC_FLAGS)
619
620 # FIX ME
621 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
622 $(NOSTDINC_FLAGS)
623 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
624
625 #########################################################################
626 # U-Boot objects....order is important (i.e. start must be first)
627
628 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
629
630 libs-y += lib/
631 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
632 libs-$(CONFIG_OF_EMBED) += dts/
633 libs-y += fs/
634 libs-y += net/
635 libs-y += disk/
636 libs-y += drivers/
637 libs-y += drivers/dma/
638 libs-y += drivers/gpio/
639 libs-y += drivers/i2c/
640 libs-y += drivers/mmc/
641 libs-y += drivers/mtd/
642 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
643 libs-y += drivers/mtd/onenand/
644 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
645 libs-y += drivers/mtd/spi/
646 libs-y += drivers/net/
647 libs-y += drivers/net/phy/
648 libs-y += drivers/pci/
649 libs-y += drivers/power/ \
650 drivers/power/fuel_gauge/ \
651 drivers/power/mfd/ \
652 drivers/power/pmic/ \
653 drivers/power/battery/ \
654 drivers/power/regulator/
655 libs-y += drivers/spi/
656 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
657 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
658 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
659 libs-y += drivers/serial/
660 libs-y += drivers/usb/dwc3/
661 libs-y += drivers/usb/emul/
662 libs-y += drivers/usb/eth/
663 libs-y += drivers/usb/gadget/
664 libs-y += drivers/usb/gadget/udc/
665 libs-y += drivers/usb/host/
666 libs-y += drivers/usb/musb/
667 libs-y += drivers/usb/musb-new/
668 libs-y += drivers/usb/phy/
669 libs-y += drivers/usb/ulpi/
670 libs-y += common/
671 libs-$(CONFIG_API) += api/
672 libs-$(CONFIG_HAS_POST) += post/
673 libs-y += test/
674 libs-y += test/dm/
675 libs-$(CONFIG_UT_ENV) += test/env/
676
677 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
678
679 libs-y := $(sort $(libs-y))
680
681 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
682
683 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
684
685 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
686
687 u-boot-init := $(head-y)
688 u-boot-main := $(libs-y)
689
690
691 # Add GCC lib
692 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
693 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
694 else
695 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
696 endif
697 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
698 export PLATFORM_LIBS
699 export PLATFORM_LIBGCC
700
701 # Special flags for CPP when processing the linker script.
702 # Pass the version down so we can handle backwards compatibility
703 # on the fly.
704 LDPPFLAGS += \
705 -include $(srctree)/include/u-boot/u-boot.lds.h \
706 -DCPUDIR=$(CPUDIR) \
707 $(shell $(LD) --version | \
708 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
709
710 #########################################################################
711 #########################################################################
712
713 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
714 BOARD_SIZE_CHECK = \
715 @actual=`wc -c $@ | awk '{print $$1}'`; \
716 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
717 if test $$actual -gt $$limit; then \
718 echo "$@ exceeds file size limit:" >&2 ; \
719 echo " limit: $$limit bytes" >&2 ; \
720 echo " actual: $$actual bytes" >&2 ; \
721 echo " excess: $$((actual - limit)) bytes" >&2; \
722 exit 1; \
723 fi
724 else
725 BOARD_SIZE_CHECK =
726 endif
727
728 # Statically apply RELA-style relocations (currently arm64 only)
729 ifneq ($(CONFIG_STATIC_RELA),)
730 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
731 DO_STATIC_RELA = \
732 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
733 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
734 tools/relocate-rela $(2) $(3) $$start $$end
735 else
736 DO_STATIC_RELA =
737 endif
738
739 # Always append ALL so that arch config.mk's can add custom ones
740 ALL-y += u-boot.srec u-boot.bin System.map u-boot.cfg binary_size_check
741
742 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
743 ifeq ($(CONFIG_SPL_FSL_PBL),y)
744 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
745 else
746 ifneq ($(CONFIG_SECURE_BOOT), y)
747 # For Secure Boot The Image needs to be signed and Header must also
748 # be included. So The image has to be built explicitly
749 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
750 endif
751 endif
752 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
753 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
754 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
755 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
756 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
757 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
758 endif
759 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
760 ifneq ($(CONFIG_SPL_TARGET),)
761 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
762 endif
763 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
764 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
765 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
766
767 ifneq ($(BUILD_ROM),)
768 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
769 endif
770
771 # enable combined SPL/u-boot/dtb rules for tegra
772 ifneq ($(CONFIG_TEGRA),)
773 ifeq ($(CONFIG_SPL),y)
774 ifeq ($(CONFIG_OF_SEPARATE),y)
775 ALL-y += u-boot-dtb-tegra.bin
776 else
777 ALL-y += u-boot-nodtb-tegra.bin
778 endif
779 endif
780 endif
781
782 # Add optional build target if defined in board/cpu/soc headers
783 ifneq ($(CONFIG_BUILD_TARGET),)
784 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
785 endif
786
787 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
788 ifneq ($(CONFIG_SYS_TEXT_BASE),)
789 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
790 endif
791
792 # Normally we fill empty space with 0xff
793 quiet_cmd_objcopy = OBJCOPY $@
794 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
795 $(OBJCOPYFLAGS_$(@F)) $< $@
796
797 # Provide a version which does not do this, for use by EFI
798 quiet_cmd_zobjcopy = OBJCOPY $@
799 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
800
801 quiet_cmd_efipayload = OBJCOPY $@
802 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
803
804 quiet_cmd_mkimage = MKIMAGE $@
805 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
806 $(if $(KBUILD_VERBOSE:1=), >/dev/null)
807
808 quiet_cmd_cat = CAT $@
809 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
810
811 append = cat $(filter-out $< $(PHONY), $^) >> $@
812
813 quiet_cmd_pad_cat = CAT $@
814 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
815
816 all: $(ALL-y)
817 ifneq ($(CONFIG_SYS_GENERIC_BOARD),y)
818 @echo "===================== WARNING ======================"
819 @echo "Please convert this board to generic board."
820 @echo "Otherwise it will be removed by the end of 2014."
821 @echo "See doc/README.generic-board for further information"
822 @echo "===================================================="
823 endif
824 ifeq ($(CONFIG_DM_I2C_COMPAT),y)
825 @echo "===================== WARNING ======================"
826 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
827 @echo "(possibly in a subsequent patch in your series)"
828 @echo "before sending patches to the mailing list."
829 @echo "===================================================="
830 endif
831
832 PHONY += dtbs
833 dtbs dts/dt.dtb: checkdtc u-boot
834 $(Q)$(MAKE) $(build)=dts dtbs
835
836 u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE
837 $(call if_changed,cat)
838
839 %.imx: %.bin
840 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
841
842 quiet_cmd_copy = COPY $@
843 cmd_copy = cp $< $@
844
845 u-boot.dtb: dts/dt.dtb
846 $(call cmd,copy)
847
848 OBJCOPYFLAGS_u-boot.hex := -O ihex
849
850 OBJCOPYFLAGS_u-boot.srec := -O srec
851
852 u-boot.hex u-boot.srec: u-boot FORCE
853 $(call if_changed,objcopy)
854
855 OBJCOPYFLAGS_u-boot.bin := -O binary \
856 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec)
857
858 binary_size_check: u-boot.bin FORCE
859 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \
860 map_size=$(shell cat u-boot.map | \
861 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
862 | sed 's/0X//g' \
863 | bc); \
864 if [ "" != "$$map_size" ]; then \
865 if test $$map_size -ne $$file_size; then \
866 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
867 echo " but u-boot.bin shows $$file_size" >&2 ; \
868 exit 1; \
869 fi \
870 fi
871
872 u-boot.bin: u-boot FORCE
873 $(call if_changed,objcopy)
874 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
875 $(BOARD_SIZE_CHECK)
876
877 u-boot.ldr: u-boot
878 $(CREATE_LDR_ENV)
879 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
880 $(BOARD_SIZE_CHECK)
881
882 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
883
884 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
885
886 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
887 $(call if_changed,objcopy)
888
889 #
890 # U-Boot entry point, needed for booting of full-blown U-Boot
891 # from the SPL U-Boot version.
892 #
893 ifndef CONFIG_SYS_UBOOT_START
894 CONFIG_SYS_UBOOT_START := 0
895 endif
896
897 # Create a file containing the configuration options the image was built with
898 quiet_cmd_cpp_cfg = CFG $@
899 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
900 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
901
902 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
903 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
904 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
905
906 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
907 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
908
909 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
910 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
911
912 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
913 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
914
915 u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
916 $(call if_changed,mkimage)
917
918 # If the kwboot xmodem protocol is used, to boot U-Boot on the MVEBU
919 # SoC's, the SPL U-Boot returns to the BootROM after it completes
920 # the SDRAM setup. The BootROM expects no U-Boot header in the main
921 # U-Boot image. So we need to combine SPL and u-boot.bin instead of
922 # u-boot.img in this case.
923 ifdef CONFIG_MVEBU_BOOTROM_UARTBOOT
924 u-boot-spl.kwb: u-boot-dtb.bin spl/u-boot-spl.bin FORCE
925 $(call if_changed,mkimage)
926 else
927 u-boot-spl.kwb: u-boot-dtb.img spl/u-boot-spl.bin FORCE
928 $(call if_changed,mkimage)
929 endif
930
931 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
932
933 u-boot-dtb.img: u-boot-dtb.bin FORCE
934 $(call if_changed,mkimage)
935
936 u-boot.sha1: u-boot.bin
937 tools/ubsha1 u-boot.bin
938
939 u-boot.dis: u-boot
940 $(OBJDUMP) -d $< > $@
941
942 u-boot.cfg: include/config.h
943 $(call if_changed,cpp_cfg)
944
945 ifdef CONFIG_TPL
946 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
947 else
948 SPL_PAYLOAD := u-boot.bin
949 endif
950
951 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
952 --pad-to=$(CONFIG_SPL_PAD_TO)
953 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
954 $(call if_changed,pad_cat)
955
956 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
957
958 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
959 $(call if_changed,mkimage)
960
961 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
962
963 lpc32xx-boot-0.bin: lpc32xx-spl.img
964 $(call if_changed,objcopy)
965
966 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
967
968 lpc32xx-boot-1.bin: lpc32xx-spl.img
969 $(call if_changed,objcopy)
970
971 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img
972 $(call if_changed,cat)
973
974 CLEAN_FILES += lpc32xx-*
975
976 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
977 --pad-to=$(CONFIG_TPL_PAD_TO)
978 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
979 $(call if_changed,pad_cat)
980
981 SPL: spl/u-boot-spl.bin FORCE
982 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
983
984 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
985 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
986
987 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
988
989 u-boot.ubl: u-boot-with-spl.bin FORCE
990 $(call if_changed,mkimage)
991
992 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
993 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
994 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
995 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
996 $(call if_changed,mkimage)
997
998 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
999 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1000 $(call if_changed,pad_cat)
1001
1002 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1003 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1004 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1005 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1006
1007 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1008 # Both images are created using mkimage (crc etc), so that the ROM
1009 # bootloader can check its integrity. Padding needs to be done to the
1010 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1011 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1012 # The resulting image containing both U-Boot images is called u-boot.spr
1013 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1014 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1015 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1016 $(call if_changed,mkimage)
1017
1018 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1019 --gap-fill=0xff
1020 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1021 $(call if_changed,pad_cat)
1022
1023 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1024 quiet_cmd_socboot = SOCBOOT $@
1025 cmd_socboot = cat spl/u-boot-spl-dtb.sfp spl/u-boot-spl-dtb.sfp \
1026 spl/u-boot-spl-dtb.sfp spl/u-boot-spl-dtb.sfp \
1027 u-boot-dtb.img > $@ || rm -f $@
1028 u-boot-with-spl-dtb.sfp: spl/u-boot-spl-dtb.sfp u-boot-dtb.img FORCE
1029 $(call if_changed,socboot)
1030 endif
1031
1032 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1033 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1034 # the middle.
1035 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1036 rom: u-boot.rom FORCE
1037
1038 IFDTOOL=$(objtree)/tools/ifdtool
1039 IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb
1040 IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1)
1041 IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot.bin
1042 IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin
1043 IFDTOOL_FLAGS += -C
1044
1045 ifneq ($(CONFIG_HAVE_INTEL_ME),)
1046 IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin
1047 IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin
1048 endif
1049
1050 ifneq ($(CONFIG_HAVE_MRC),)
1051 IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin
1052 endif
1053
1054 ifneq ($(CONFIG_HAVE_FSP),)
1055 IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE)
1056 endif
1057
1058 ifneq ($(CONFIG_HAVE_CMC),)
1059 IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE)
1060 endif
1061
1062 ifneq ($(CONFIG_HAVE_VGA_BIOS),)
1063 IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE)
1064 endif
1065
1066 quiet_cmd_ifdtool = IFDTOOL $@
1067 cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp;
1068 ifneq ($(CONFIG_HAVE_INTEL_ME),)
1069 cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp;
1070 endif
1071 cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp;
1072 cmd_ifdtool += mv u-boot.tmp $@
1073
1074 u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin
1075 $(call if_changed,ifdtool)
1076
1077 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1078 u-boot-x86-16bit.bin: u-boot FORCE
1079 $(call if_changed,objcopy)
1080 endif
1081
1082 ifneq ($(CONFIG_SUNXI),)
1083 OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \
1084 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1085 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \
1086 u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE
1087 $(call if_changed,pad_cat)
1088 endif
1089
1090 ifneq ($(CONFIG_TEGRA),)
1091 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1092 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1093 $(call if_changed,pad_cat)
1094
1095 ifeq ($(CONFIG_OF_SEPARATE),y)
1096 u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE
1097 $(call if_changed,cat)
1098 endif
1099 endif
1100
1101 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1102 u-boot-app.efi: u-boot FORCE
1103 $(call if_changed,zobjcopy)
1104
1105 u-boot-dtb.bin.o: u-boot-dtb.bin FORCE
1106 $(call if_changed,efipayload)
1107
1108 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1109 $(call if_changed_dep,cpp_lds)
1110
1111 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1112 quiet_cmd_u-boot_payload ?= LD $@
1113 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1114 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1115 lib/efi/efi.o lib/efi/efi_stub.o u-boot-dtb.bin.o \
1116 $(addprefix arch/$(ARCH)/lib/efi/,$(EFISTUB))
1117
1118 u-boot-payload: u-boot-dtb.bin.o u-boot-payload.lds FORCE
1119 $(call if_changed,u-boot_payload)
1120
1121 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1122 u-boot-payload.efi: u-boot-payload FORCE
1123 $(call if_changed,zobjcopy)
1124
1125 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1126 $(call if_changed,cat)
1127
1128 #Add a target to create boot binary having SPL binary in PBI format
1129 #concatenated with u-boot binary. It is need by PowerPC SoC having
1130 #internal SRAM <= 512KB.
1131 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1132 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1133 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1134
1135 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1136 $(call if_changed,mkimage)
1137
1138 ifeq ($(ARCH),arm)
1139 ifdef CONFIG_OF_CONTROL
1140 UBOOT_BINLOAD := u-boot-dtb.img
1141 else
1142 UBOOT_BINLOAD := u-boot.img
1143 endif
1144 else
1145 UBOOT_BINLOAD := u-boot.bin
1146 endif
1147
1148 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1149 --gap-fill=0xff
1150
1151 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1152 $(call if_changed,pad_cat)
1153
1154 # PPC4xx needs the SPL at the end of the image, since the reset vector
1155 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1156 # and need to introduce a new build target with the full blown U-Boot
1157 # at the start padded up to the start of the SPL image. And then concat
1158 # the SPL image to the end.
1159
1160 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1161 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1162 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1163 $(call if_changed,pad_cat)
1164
1165 # Create a new ELF from a raw binary file. This is useful for arm64
1166 # where static relocation needs to be performed on the raw binary,
1167 # but certain simulators only accept an ELF file (but don't do the
1168 # relocation).
1169 # FIXME refactor dts/Makefile to share target/arch detection
1170 u-boot.elf: u-boot.bin
1171 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \
1172 $< u-boot-elf.o
1173 @$(LD) u-boot-elf.o -o $@ \
1174 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
1175 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1176
1177 # Rule to link u-boot
1178 # May be overridden by arch/$(ARCH)/config.mk
1179 quiet_cmd_u-boot__ ?= LD $@
1180 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1181 -T u-boot.lds $(u-boot-init) \
1182 --start-group $(u-boot-main) --end-group \
1183 $(PLATFORM_LIBS) -Map u-boot.map
1184
1185 quiet_cmd_smap = GEN common/system_map.o
1186 cmd_smap = \
1187 smap=`$(call SYSTEM_MAP,u-boot) | \
1188 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1189 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1190 -c $(srctree)/common/system_map.c -o common/system_map.o
1191
1192 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds
1193 $(call if_changed,u-boot__)
1194 ifeq ($(CONFIG_KALLSYMS),y)
1195 $(call cmd,smap)
1196 $(call cmd,u-boot__) common/system_map.o
1197 endif
1198
1199 # The actual objects are generated when descending,
1200 # make sure no implicit rule kicks in
1201 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1202
1203 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1204 # Preset locale variables to speed up the build process. Limit locale
1205 # tweaks to this spot to avoid wrong language settings when running
1206 # make menuconfig etc.
1207 # Error messages still appears in the original language
1208
1209 PHONY += $(u-boot-dirs)
1210 $(u-boot-dirs): prepare scripts
1211 $(Q)$(MAKE) $(build)=$@
1212
1213 tools: prepare
1214 # The "tools" are needed early
1215 $(filter-out tools, $(u-boot-dirs)): tools
1216 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1217 # is "yes"), so compile examples after U-Boot is compiled.
1218 examples: $(filter-out examples, $(u-boot-dirs))
1219
1220 define filechk_uboot.release
1221 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1222 endef
1223
1224 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1225 include/config/uboot.release: include/config/auto.conf FORCE
1226 $(call filechk,uboot.release)
1227
1228
1229 # Things we need to do before we recursively start building the kernel
1230 # or the modules are listed in "prepare".
1231 # A multi level approach is used. prepareN is processed before prepareN-1.
1232 # archprepare is used in arch Makefiles and when processed asm symlink,
1233 # version.h and scripts_basic is processed / created.
1234
1235 # Listed in dependency order
1236 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1237
1238 # prepare3 is used to check if we are building in a separate output directory,
1239 # and if so do:
1240 # 1) Check that make has not been executed in the kernel src $(srctree)
1241 prepare3: include/config/uboot.release
1242 ifneq ($(KBUILD_SRC),)
1243 @$(kecho) ' Using $(srctree) as source for U-Boot'
1244 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1245 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1246 echo >&2 " in the '$(srctree)' directory.";\
1247 /bin/false; \
1248 fi;
1249 endif
1250
1251 # prepare2 creates a makefile if using a separate output directory
1252 prepare2: prepare3 outputmakefile
1253
1254 prepare1: prepare2 $(version_h) $(timestamp_h) \
1255 include/config/auto.conf
1256 ifeq ($(CONFIG_HAVE_GENERIC_BOARD),)
1257 ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
1258 @echo >&2 " Your architecture does not support generic board."
1259 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file."
1260 @/bin/false
1261 endif
1262 endif
1263 ifeq ($(wildcard $(LDSCRIPT)),)
1264 @echo >&2 " Could not find linker script."
1265 @/bin/false
1266 endif
1267
1268 archprepare: prepare1 scripts_basic
1269
1270 prepare0: archprepare FORCE
1271 $(Q)$(MAKE) $(build)=.
1272
1273 # All the preparing..
1274 prepare: prepare0
1275
1276 # Generate some files
1277 # ---------------------------------------------------------------------------
1278
1279 define filechk_version.h
1280 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1281 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1282 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \
1283 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; )
1284 endef
1285
1286 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1287 # The BSD date on the other hand behaves different and would produce errors
1288 # with the misused '-d' switch. Respect that and search a working date with
1289 # well known pre- and suffixes for the GNU variant of date.
1290 define filechk_timestamp.h
1291 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1292 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1293 DATE=""; \
1294 for date in gdate date.gnu date; do \
1295 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1296 done; \
1297 if test -n "$${DATE}"; then \
1298 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1299 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1300 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1301 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1302 else \
1303 return 42; \
1304 fi; \
1305 else \
1306 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1307 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1308 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1309 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1310 fi)
1311 endef
1312
1313 $(version_h): include/config/uboot.release FORCE
1314 $(call filechk,version.h)
1315
1316 $(timestamp_h): $(srctree)/Makefile FORCE
1317 $(call filechk,timestamp.h)
1318
1319 # ---------------------------------------------------------------------------
1320 quiet_cmd_cpp_lds = LDS $@
1321 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1322 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1323
1324 u-boot.lds: $(LDSCRIPT) prepare FORCE
1325 $(call if_changed_dep,cpp_lds)
1326
1327 spl/u-boot-spl.bin: spl/u-boot-spl
1328 @:
1329 spl/u-boot-spl: tools prepare $(if $(CONFIG_OF_SEPARATE),dts/dt.dtb)
1330 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1331
1332 spl/sunxi-spl.bin: spl/u-boot-spl
1333 @:
1334
1335 spl/u-boot-spl-dtb.sfp: spl/u-boot-spl
1336 @:
1337
1338 spl/boot.bin: spl/u-boot-spl
1339 @:
1340
1341 tpl/u-boot-tpl.bin: tools prepare
1342 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1343
1344 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1345
1346 FIND := find
1347 FINDFLAGS := -L
1348
1349 tags ctags:
1350 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1351 -name '*.[chS]' -print`
1352 ln -s ctags tags
1353
1354 etags:
1355 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1356 -name '*.[chS]' -print`
1357 cscope:
1358 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1359 cscope.files
1360 cscope -b -q -k
1361
1362 SYSTEM_MAP = \
1363 $(NM) $1 | \
1364 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1365 LC_ALL=C sort
1366 System.map: u-boot
1367 @$(call SYSTEM_MAP,$<) > $@
1368
1369 checkdtc:
1370 @if test $(call dtc-version) -lt 0104; then \
1371 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1372 false; \
1373 fi
1374
1375 #########################################################################
1376
1377 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1378 # R_AARCH64_RELATIVE (64-bit).
1379 checkarmreloc: u-boot
1380 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1381 grep R_A | sort -u`"; \
1382 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1383 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1384 echo "$< contains unexpected relocations: $$RELOC"; \
1385 false; \
1386 fi
1387
1388 env: scripts_basic
1389 $(Q)$(MAKE) $(build)=tools/$@
1390
1391 tools-only: scripts_basic $(version_h) $(timestamp_h)
1392 $(Q)$(MAKE) $(build)=tools
1393
1394 tools-all: export HOST_TOOLS_ALL=y
1395 tools-all: env tools ;
1396
1397 cross_tools: export CROSS_BUILD_TOOLS=y
1398 cross_tools: tools ;
1399
1400 .PHONY : CHANGELOG
1401 CHANGELOG:
1402 git log --no-merges U-Boot-1_1_5.. | \
1403 unexpand -a | sed -e 's/\s\s*$$//' > $@
1404
1405 include/license.h: tools/bin2header COPYING
1406 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1407 #########################################################################
1408
1409 ###
1410 # Cleaning is done on three levels.
1411 # make clean Delete most generated files
1412 # Leave enough to build external modules
1413 # make mrproper Delete the current configuration, and all generated files
1414 # make distclean Remove editor backup files, patch leftover files and the like
1415
1416 # Directories & files removed with 'make clean'
1417 CLEAN_DIRS += $(MODVERDIR) \
1418 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1419 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1420
1421 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1422 boot* u-boot* MLO* SPL System.map
1423
1424 # Directories & files removed with 'make mrproper'
1425 MRPROPER_DIRS += include/config include/generated spl tpl \
1426 .tmp_objdiff
1427 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1428 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1429
1430 # clean - Delete most, but leave enough to build external modules
1431 #
1432 clean: rm-dirs := $(CLEAN_DIRS)
1433 clean: rm-files := $(CLEAN_FILES)
1434
1435 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1436
1437 clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1438
1439 PHONY += $(clean-dirs) clean archclean
1440 $(clean-dirs):
1441 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1442
1443 # TODO: Do not use *.cfgtmp
1444 clean: $(clean-dirs)
1445 $(call cmd,rmdirs)
1446 $(call cmd,rmfiles)
1447 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1448 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1449 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1450 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1451 -o -name '*.symtypes' -o -name 'modules.order' \
1452 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1453 -o -name '*.gcno' \) -type f -print | xargs rm -f
1454
1455 # mrproper - Delete all generated files, including .config
1456 #
1457 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1458 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1459 mrproper-dirs := $(addprefix _mrproper_,scripts)
1460
1461 PHONY += $(mrproper-dirs) mrproper archmrproper
1462 $(mrproper-dirs):
1463 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1464
1465 mrproper: clean $(mrproper-dirs)
1466 $(call cmd,rmdirs)
1467 $(call cmd,rmfiles)
1468 @rm -f arch/*/include/asm/arch
1469
1470 # distclean
1471 #
1472 PHONY += distclean
1473
1474 distclean: mrproper
1475 @find $(srctree) $(RCS_FIND_IGNORE) \
1476 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1477 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1478 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1479 -o -name '*.pyc' \) \
1480 -type f -print | xargs rm -f
1481 @rm -f boards.cfg
1482
1483 backup:
1484 F=`basename $(srctree)` ; cd .. ; \
1485 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1486
1487 help:
1488 @echo 'Cleaning targets:'
1489 @echo ' clean - Remove most generated files but keep the config'
1490 @echo ' mrproper - Remove all generated files + config + various backup files'
1491 @echo ' distclean - mrproper + remove editor backup and patch files'
1492 @echo ''
1493 @echo 'Configuration targets:'
1494 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1495 @echo ''
1496 @echo 'Other generic targets:'
1497 @echo ' all - Build all necessary images depending on configuration'
1498 @echo '* u-boot - Build the bare u-boot'
1499 @echo ' dir/ - Build all files in dir and below'
1500 @echo ' dir/file.[oisS] - Build specified target only'
1501 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1502 @echo ' (requires a recent binutils and recent build (System.map))'
1503 @echo ' tags/ctags - Generate ctags file for editors'
1504 @echo ' etags - Generate etags file for editors'
1505 @echo ' cscope - Generate cscope index'
1506 @echo ' ubootrelease - Output the release version string (use with make -s)'
1507 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1508 @echo ''
1509 @echo 'Static analysers'
1510 @echo ' checkstack - Generate a list of stack hogs'
1511 @echo ''
1512 @echo 'Documentation targets:'
1513 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1514 @echo ''
1515 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1516 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1517 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1518 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1519 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1520 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1521 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1522 @echo ' 1: warnings which may be relevant and do not occur too often'
1523 @echo ' 2: warnings which occur quite often but may still be relevant'
1524 @echo ' 3: more obscure warnings, can most likely be ignored'
1525 @echo ' Multiple levels can be combined with W=12 or W=123'
1526 @echo ''
1527 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1528 @echo 'For further info see the ./README file'
1529
1530
1531 # Documentation targets
1532 # ---------------------------------------------------------------------------
1533 %docs: scripts_basic FORCE
1534 $(Q)$(MAKE) $(build)=scripts build_docproc
1535 $(Q)$(MAKE) $(build)=doc/DocBook $@
1536
1537 # Dummies...
1538 PHONY += prepare scripts
1539 prepare: ;
1540 scripts: ;
1541
1542 endif #ifeq ($(config-targets),1)
1543 endif #ifeq ($(mixed-targets),1)
1544
1545 PHONY += checkstack ubootrelease ubootversion
1546
1547 checkstack:
1548 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1549 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1550
1551 ubootrelease:
1552 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1553
1554 ubootversion:
1555 @echo $(UBOOTVERSION)
1556
1557 # Single targets
1558 # ---------------------------------------------------------------------------
1559 # Single targets are compatible with:
1560 # - build with mixed source and output
1561 # - build with separate output dir 'make O=...'
1562 # - external modules
1563 #
1564 # target-dir => where to store outputfile
1565 # build-dir => directory in kernel source tree to use
1566
1567 ifeq ($(KBUILD_EXTMOD),)
1568 build-dir = $(patsubst %/,%,$(dir $@))
1569 target-dir = $(dir $@)
1570 else
1571 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1572 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1573 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1574 endif
1575
1576 %.s: %.c prepare scripts FORCE
1577 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1578 %.i: %.c prepare scripts FORCE
1579 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1580 %.o: %.c prepare scripts FORCE
1581 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1582 %.lst: %.c prepare scripts FORCE
1583 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1584 %.s: %.S prepare scripts FORCE
1585 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1586 %.o: %.S prepare scripts FORCE
1587 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1588 %.symtypes: %.c prepare scripts FORCE
1589 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1590
1591 # Modules
1592 /: prepare scripts FORCE
1593 $(cmd_crmodverdir)
1594 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1595 $(build)=$(build-dir)
1596 %/: prepare scripts FORCE
1597 $(cmd_crmodverdir)
1598 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1599 $(build)=$(build-dir)
1600 %.ko: prepare scripts FORCE
1601 $(cmd_crmodverdir)
1602 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1603 $(build)=$(build-dir) $(@:.ko=.o)
1604 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1605
1606 # FIXME Should go into a make.lib or something
1607 # ===========================================================================
1608
1609 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1610 cmd_rmdirs = rm -rf $(rm-dirs)
1611
1612 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1613 cmd_rmfiles = rm -f $(rm-files)
1614
1615 # read all saved command lines
1616
1617 targets := $(wildcard $(sort $(targets)))
1618 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1619
1620 ifneq ($(cmd_files),)
1621 $(cmd_files): ; # Do not try to update included dependency files
1622 include $(cmd_files)
1623 endif
1624
1625 endif # skip-makefile
1626
1627 PHONY += FORCE
1628 FORCE:
1629
1630 # Declare the contents of the .PHONY variable as phony. We keep that
1631 # information in a variable so we can use it in if_changed and friends.
1632 .PHONY: $(PHONY)