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1VERSION = 2015
2PATCHLEVEL = 10
3SUBLEVEL =
4EXTRAVERSION = -rc2
5NAME =
6
7# *DOCUMENTATION*
8# To see a list of typical targets execute "make help"
9# More info can be located in ./README
10# Comments in this file are targeted only to the developer, do not
11# expect to learn how to build the kernel reading this file.
12
13# o Do not use make's built-in rules and variables
14# (this increases performance and avoids hard-to-debug behaviour);
15# o Look for make include files relative to root of kernel src
16MAKEFLAGS += -rR --include-dir=$(CURDIR)
17
18# Avoid funny character set dependencies
19unexport LC_ALL
20LC_COLLATE=C
21LC_NUMERIC=C
22export LC_COLLATE LC_NUMERIC
23
24# Avoid interference with shell env settings
25unexport GREP_OPTIONS
26
27# We are using a recursive build, so we need to do a little thinking
28# to get the ordering right.
29#
30# Most importantly: sub-Makefiles should only ever modify files in
31# their own directory. If in some directory we have a dependency on
32# a file in another dir (which doesn't happen often, but it's often
33# unavoidable when linking the built-in.o targets which finally
34# turn into vmlinux), we will call a sub make in that other dir, and
35# after that we are sure that everything which is in that other dir
36# is now up to date.
37#
38# The only cases where we need to modify files which have global
39# effects are thus separated out and done before the recursive
40# descending is started. They are now explicitly listed as the
41# prepare rule.
42
43# Beautify output
44# ---------------------------------------------------------------------------
45#
46# Normally, we echo the whole command before executing it. By making
47# that echo $($(quiet)$(cmd)), we now have the possibility to set
48# $(quiet) to choose other forms of output instead, e.g.
49#
50# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
51# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
52#
53# If $(quiet) is empty, the whole command will be printed.
54# If it is set to "quiet_", only the short version will be printed.
55# If it is set to "silent_", nothing will be printed at all, since
56# the variable $(silent_cmd_cc_o_c) doesn't exist.
57#
58# A simple variant is to prefix commands with $(Q) - that's useful
59# for commands that shall be hidden in non-verbose mode.
60#
61# $(Q)ln $@ :<
62#
63# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
64# If KBUILD_VERBOSE equals 1 then the above command is displayed.
65#
66# To put more focus on warnings, be less verbose as default
67# Use 'make V=1' to see the full commands
68
69ifeq ("$(origin V)", "command line")
70 KBUILD_VERBOSE = $(V)
71endif
72ifndef KBUILD_VERBOSE
73 KBUILD_VERBOSE = 0
74endif
75
76ifeq ($(KBUILD_VERBOSE),1)
77 quiet =
78 Q =
79else
80 quiet=quiet_
81 Q = @
82endif
83
84# If the user is running make -s (silent mode), suppress echoing of
85# commands
86
87ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
88ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
89 quiet=silent_
90endif
91else # make-3.8x
92ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
93 quiet=silent_
94endif
95endif
96
97export quiet Q KBUILD_VERBOSE
98
99# kbuild supports saving output files in a separate directory.
100# To locate output files in a separate directory two syntaxes are supported.
101# In both cases the working directory must be the root of the kernel src.
102# 1) O=
103# Use "make O=dir/to/store/output/files/"
104#
105# 2) Set KBUILD_OUTPUT
106# Set the environment variable KBUILD_OUTPUT to point to the directory
107# where the output files shall be placed.
108# export KBUILD_OUTPUT=dir/to/store/output/files/
109# make
110#
111# The O= assignment takes precedence over the KBUILD_OUTPUT environment
112# variable.
113
114# KBUILD_SRC is set on invocation of make in OBJ directory
115# KBUILD_SRC is not intended to be used by the regular user (for now)
116ifeq ($(KBUILD_SRC),)
117
118# OK, Make called in directory where kernel src resides
119# Do we want to locate output files in a separate directory?
120ifeq ("$(origin O)", "command line")
121 KBUILD_OUTPUT := $(O)
122endif
123
124# That's our default target when none is given on the command line
125PHONY := _all
126_all:
127
128# Cancel implicit rules on top Makefile
129$(CURDIR)/Makefile Makefile: ;
130
131ifneq ($(KBUILD_OUTPUT),)
132# Invoke a second make in the output directory, passing relevant variables
133# check that the output directory actually exists
134saved-output := $(KBUILD_OUTPUT)
135KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
136 && /bin/pwd)
137$(if $(KBUILD_OUTPUT),, \
138 $(error failed to create output directory "$(saved-output)"))
139
140PHONY += $(MAKECMDGOALS) sub-make
141
142$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
143 @:
144
145sub-make: FORCE
146 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
147 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
148
149# Leave processing to above invocation of make
150skip-makefile := 1
151endif # ifneq ($(KBUILD_OUTPUT),)
152endif # ifeq ($(KBUILD_SRC),)
153
154# We process the rest of the Makefile if this is the final invocation of make
155ifeq ($(skip-makefile),)
156
157# Do not print "Entering directory ...",
158# but we want to display it when entering to the output directory
159# so that IDEs/editors are able to understand relative filenames.
160MAKEFLAGS += --no-print-directory
161
162# Call a source code checker (by default, "sparse") as part of the
163# C compilation.
164#
165# Use 'make C=1' to enable checking of only re-compiled files.
166# Use 'make C=2' to enable checking of *all* source files, regardless
167# of whether they are re-compiled or not.
168#
169# See the file "Documentation/sparse.txt" for more details, including
170# where to get the "sparse" utility.
171
172ifeq ("$(origin C)", "command line")
173 KBUILD_CHECKSRC = $(C)
174endif
175ifndef KBUILD_CHECKSRC
176 KBUILD_CHECKSRC = 0
177endif
178
179# Use make M=dir to specify directory of external module to build
180# Old syntax make ... SUBDIRS=$PWD is still supported
181# Setting the environment variable KBUILD_EXTMOD take precedence
182ifdef SUBDIRS
183 KBUILD_EXTMOD ?= $(SUBDIRS)
184endif
185
186ifeq ("$(origin M)", "command line")
187 KBUILD_EXTMOD := $(M)
188endif
189
190# If building an external module we do not care about the all: rule
191# but instead _all depend on modules
192PHONY += all
193ifeq ($(KBUILD_EXTMOD),)
194_all: all
195else
196_all: modules
197endif
198
199ifeq ($(KBUILD_SRC),)
200 # building in the source tree
201 srctree := .
202else
203 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
204 # building in a subdirectory of the source tree
205 srctree := ..
206 else
207 srctree := $(KBUILD_SRC)
208 endif
209endif
210objtree := .
211src := $(srctree)
212obj := $(objtree)
213
214VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
215
216export srctree objtree VPATH
217
218# Make sure CDPATH settings don't interfere
219unexport CDPATH
220
221#########################################################################
222
223HOSTARCH := $(shell uname -m | \
224 sed -e s/i.86/x86/ \
225 -e s/sun4u/sparc64/ \
226 -e s/arm.*/arm/ \
227 -e s/sa110/arm/ \
228 -e s/ppc64/powerpc/ \
229 -e s/ppc/powerpc/ \
230 -e s/macppc/powerpc/\
231 -e s/sh.*/sh/)
232
233HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
234 sed -e 's/\(cygwin\).*/cygwin/')
235
236export HOSTARCH HOSTOS
237
238#########################################################################
239
240# set default to nothing for native builds
241ifeq ($(HOSTARCH),$(ARCH))
242CROSS_COMPILE ?=
243endif
244
245KCONFIG_CONFIG ?= .config
246export KCONFIG_CONFIG
247
248# SHELL used by kbuild
249CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
250 else if [ -x /bin/bash ]; then echo /bin/bash; \
251 else echo sh; fi ; fi)
252
253HOSTCC = cc
254HOSTCXX = c++
255HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
256HOSTCXXFLAGS = -O2
257
258ifeq ($(HOSTOS),cygwin)
259HOSTCFLAGS += -ansi
260endif
261
262# Mac OS X / Darwin's C preprocessor is Apple specific. It
263# generates numerous errors and warnings. We want to bypass it
264# and use GNU C's cpp. To do this we pass the -traditional-cpp
265# option to the compiler. Note that the -traditional-cpp flag
266# DOES NOT have the same semantics as GNU C's flag, all it does
267# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
268#
269# Apple's linker is similar, thanks to the new 2 stage linking
270# multiple symbol definitions are treated as errors, hence the
271# -multiply_defined suppress option to turn off this error.
272#
273ifeq ($(HOSTOS),darwin)
274# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
275DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
276DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
277
278os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
279 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
280
281# Snow Leopards build environment has no longer restrictions as described above
282HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
283HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
284HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
285
286# since Lion (10.7) ASLR is on by default, but we use linker generated lists
287# in some host tools which is a problem then ... so disable ASLR for these
288# tools
289HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
290endif
291
292# Decide whether to build built-in, modular, or both.
293# Normally, just do built-in.
294
295KBUILD_MODULES :=
296KBUILD_BUILTIN := 1
297
298# If we have only "make modules", don't compile built-in objects.
299# When we're building modules with modversions, we need to consider
300# the built-in objects during the descend as well, in order to
301# make sure the checksums are up to date before we record them.
302
303ifeq ($(MAKECMDGOALS),modules)
304 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
305endif
306
307# If we have "make <whatever> modules", compile modules
308# in addition to whatever we do anyway.
309# Just "make" or "make all" shall build modules as well
310
311# U-Boot does not need modules
312#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
313# KBUILD_MODULES := 1
314#endif
315
316#ifeq ($(MAKECMDGOALS),)
317# KBUILD_MODULES := 1
318#endif
319
320export KBUILD_MODULES KBUILD_BUILTIN
321export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
322
323# We need some generic definitions (do not try to remake the file).
324scripts/Kbuild.include: ;
325include scripts/Kbuild.include
326
327# Make variables (CC, etc...)
328
329AS = $(CROSS_COMPILE)as
330# Always use GNU ld
331ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
332LD = $(CROSS_COMPILE)ld.bfd
333else
334LD = $(CROSS_COMPILE)ld
335endif
336CC = $(CROSS_COMPILE)gcc
337CPP = $(CC) -E
338AR = $(CROSS_COMPILE)ar
339NM = $(CROSS_COMPILE)nm
340LDR = $(CROSS_COMPILE)ldr
341STRIP = $(CROSS_COMPILE)strip
342OBJCOPY = $(CROSS_COMPILE)objcopy
343OBJDUMP = $(CROSS_COMPILE)objdump
344AWK = awk
345PERL = perl
346PYTHON = python
347DTC = dtc
348CHECK = sparse
349
350CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
351 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
352
353KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
354
355KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
356 -Wno-format-security \
357 -fno-builtin -ffreestanding
358KBUILD_AFLAGS := -D__ASSEMBLY__
359
360# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
361UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
362UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
363
364export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
365export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
366export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
367export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
368export MAKE AWK PERL PYTHON
369export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
370
371export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
372export KBUILD_CFLAGS KBUILD_AFLAGS
373
374# When compiling out-of-tree modules, put MODVERDIR in the module
375# tree rather than in the kernel tree. The kernel tree might
376# even be read-only.
377export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
378
379# Files to ignore in find ... statements
380
381export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
382 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
383 -prune -o
384export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
385 --exclude CVS --exclude .pc --exclude .hg --exclude .git
386
387# ===========================================================================
388# Rules shared between *config targets and build targets
389
390# Basic helpers built in scripts/
391PHONY += scripts_basic
392scripts_basic:
393 $(Q)$(MAKE) $(build)=scripts/basic
394 $(Q)rm -f .tmp_quiet_recordmcount
395
396# To avoid any implicit rule to kick in, define an empty command.
397scripts/basic/%: scripts_basic ;
398
399PHONY += outputmakefile
400# outputmakefile generates a Makefile in the output directory, if using a
401# separate output directory. This allows convenient use of make in the
402# output directory.
403outputmakefile:
404ifneq ($(KBUILD_SRC),)
405 $(Q)ln -fsn $(srctree) source
406 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
407 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
408endif
409
410# To make sure we do not include .config for any of the *config targets
411# catch them early, and hand them over to scripts/kconfig/Makefile
412# It is allowed to specify more targets when calling make, including
413# mixing *config targets and build targets.
414# For example 'make oldconfig all'.
415# Detect when mixed targets is specified, and make a second invocation
416# of make so .config is not included in this case either (for *config).
417
418version_h := include/generated/version_autogenerated.h
419timestamp_h := include/generated/timestamp_autogenerated.h
420
421no-dot-config-targets := clean clobber mrproper distclean \
422 help %docs check% coccicheck \
423 ubootversion backup
424
425config-targets := 0
426mixed-targets := 0
427dot-config := 1
428
429ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
430 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
431 dot-config := 0
432 endif
433endif
434
435ifeq ($(KBUILD_EXTMOD),)
436 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
437 config-targets := 1
438 ifneq ($(words $(MAKECMDGOALS)),1)
439 mixed-targets := 1
440 endif
441 endif
442endif
443
444ifeq ($(mixed-targets),1)
445# ===========================================================================
446# We're called with mixed targets (*config and build targets).
447# Handle them one by one.
448
449PHONY += $(MAKECMDGOALS) __build_one_by_one
450
451$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
452 @:
453
454__build_one_by_one:
455 $(Q)set -e; \
456 for i in $(MAKECMDGOALS); do \
457 $(MAKE) -f $(srctree)/Makefile $$i; \
458 done
459
460else
461ifeq ($(config-targets),1)
462# ===========================================================================
463# *config targets only - make sure prerequisites are updated, and descend
464# in scripts/kconfig to make the *config target
465
466KBUILD_DEFCONFIG := sandbox_defconfig
467export KBUILD_DEFCONFIG KBUILD_KCONFIG
468
469config: scripts_basic outputmakefile FORCE
470 $(Q)$(MAKE) $(build)=scripts/kconfig $@
471
472%config: scripts_basic outputmakefile FORCE
473 $(Q)$(MAKE) $(build)=scripts/kconfig $@
474
475else
476# ===========================================================================
477# Build targets only - this includes vmlinux, arch specific targets, clean
478# targets and others. In general all targets except *config targets.
479
480ifeq ($(dot-config),1)
481# Read in config
482-include include/config/auto.conf
483
484# Read in dependencies to all Kconfig* files, make sure to run
485# oldconfig if changes are detected.
486-include include/config/auto.conf.cmd
487
488# To avoid any implicit rule to kick in, define an empty command
489$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
490
491# If .config is newer than include/config/auto.conf, someone tinkered
492# with it and forgot to run make oldconfig.
493# if auto.conf.cmd is missing then we are probably in a cleaned tree so
494# we execute the config step to be sure to catch updated Kconfig files
495include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
496 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
497 @# If the following part fails, include/config/auto.conf should be
498 @# deleted so "make silentoldconfig" will be re-run on the next build.
499 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
500 { rm -f include/config/auto.conf; false; }
501 @# include/config.h has been updated after "make silentoldconfig".
502 @# We need to touch include/config/auto.conf so it gets newer
503 @# than include/config.h.
504 @# Otherwise, 'make silentoldconfig' would be invoked twice.
505 $(Q)touch include/config/auto.conf
506
507-include include/autoconf.mk
508-include include/autoconf.mk.dep
509
510# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
511# is up-to-date. When we switch to a different board configuration, old CONFIG
512# macros are still remaining in include/config/auto.conf. Without the following
513# gimmick, wrong config.mk would be included leading nasty warnings/errors.
514ifneq ($(wildcard $(KCONFIG_CONFIG)),)
515ifneq ($(wildcard include/config/auto.conf),)
516autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
517 include/config/auto.conf)
518ifeq ($(autoconf_is_old),)
519include config.mk
520include arch/$(ARCH)/Makefile
521endif
522endif
523endif
524
525# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
526# that (or fail if absent). Otherwise, search for a linker script in a
527# standard location.
528
529ifndef LDSCRIPT
530 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
531 ifdef CONFIG_SYS_LDSCRIPT
532 # need to strip off double quotes
533 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
534 endif
535endif
536
537# If there is no specified link script, we look in a number of places for it
538ifndef LDSCRIPT
539 ifeq ($(wildcard $(LDSCRIPT)),)
540 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
541 endif
542 ifeq ($(wildcard $(LDSCRIPT)),)
543 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
544 endif
545 ifeq ($(wildcard $(LDSCRIPT)),)
546 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
547 endif
548endif
549
550else
551# Dummy target needed, because used as prerequisite
552include/config/auto.conf: ;
553endif # $(dot-config)
554
555ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
556KBUILD_CFLAGS += -Os
557else
558KBUILD_CFLAGS += -O2
559endif
560
561ifdef BUILD_TAG
562KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
563endif
564
565KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
566KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
567
568KBUILD_CFLAGS += -g
569# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
570# option to the assembler.
571KBUILD_AFLAGS += -g
572
573# Report stack usage if supported
574ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
575 KBUILD_CFLAGS += -fstack-usage
576endif
577
578KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
579
580# turn jbsr into jsr for m68k
581ifeq ($(ARCH),m68k)
582ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
583KBUILD_AFLAGS += -Wa,-gstabs,-S
584endif
585endif
586
587# Prohibit date/time macros, which would make the build non-deterministic
588KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
589
590ifneq ($(CONFIG_SYS_TEXT_BASE),)
591KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
592endif
593
594export CONFIG_SYS_TEXT_BASE
595
596include scripts/Makefile.extrawarn
597
598# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
599KBUILD_CPPFLAGS += $(KCPPFLAGS)
600KBUILD_AFLAGS += $(KAFLAGS)
601KBUILD_CFLAGS += $(KCFLAGS)
602
603# Use UBOOTINCLUDE when you must reference the include/ directory.
604# Needed to be compatible with the O= option
605UBOOTINCLUDE := \
606 -Iinclude \
607 $(if $(KBUILD_SRC), -I$(srctree)/include) \
608 -I$(srctree)/arch/$(ARCH)/include \
609 -include $(srctree)/include/linux/kconfig.h
610
611NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
612CHECKFLAGS += $(NOSTDINC_FLAGS)
613
614# FIX ME
615cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
616 $(NOSTDINC_FLAGS)
617c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
618
619#########################################################################
620# U-Boot objects....order is important (i.e. start must be first)
621
622HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
623
624libs-y += lib/
625libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
626libs-$(CONFIG_OF_EMBED) += dts/
627libs-y += fs/
628libs-y += net/
629libs-y += disk/
630libs-y += drivers/
631libs-y += drivers/dma/
632libs-y += drivers/gpio/
633libs-y += drivers/i2c/
634libs-y += drivers/mmc/
635libs-y += drivers/mtd/
636libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
637libs-y += drivers/mtd/onenand/
638libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
639libs-y += drivers/mtd/spi/
640libs-y += drivers/net/
641libs-y += drivers/net/phy/
642libs-y += drivers/pci/
643libs-y += drivers/power/ \
644 drivers/power/fuel_gauge/ \
645 drivers/power/mfd/ \
646 drivers/power/pmic/ \
647 drivers/power/battery/ \
648 drivers/power/regulator/
649libs-y += drivers/spi/
650libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
651libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
652libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
653libs-y += drivers/serial/
654libs-y += drivers/usb/dwc3/
655libs-y += drivers/usb/emul/
656libs-y += drivers/usb/eth/
657libs-y += drivers/usb/gadget/
658libs-y += drivers/usb/gadget/udc/
659libs-y += drivers/usb/host/
660libs-y += drivers/usb/musb/
661libs-y += drivers/usb/musb-new/
662libs-y += drivers/usb/phy/
663libs-y += drivers/usb/ulpi/
664libs-y += common/
665libs-$(CONFIG_API) += api/
666libs-$(CONFIG_HAS_POST) += post/
667libs-y += test/
668libs-y += test/dm/
669libs-$(CONFIG_UT_ENV) += test/env/
670
671libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
672
673libs-y := $(sort $(libs-y))
674
675u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
676
677u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
678
679libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
680
681u-boot-init := $(head-y)
682u-boot-main := $(libs-y)
683
684
685# Add GCC lib
686ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
687PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
688else
689PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
690endif
691PLATFORM_LIBS += $(PLATFORM_LIBGCC)
692export PLATFORM_LIBS
693export PLATFORM_LIBGCC
694
695# Special flags for CPP when processing the linker script.
696# Pass the version down so we can handle backwards compatibility
697# on the fly.
698LDPPFLAGS += \
699 -include $(srctree)/include/u-boot/u-boot.lds.h \
700 -DCPUDIR=$(CPUDIR) \
701 $(shell $(LD) --version | \
702 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
703
704#########################################################################
705#########################################################################
706
707ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
708BOARD_SIZE_CHECK = \
709 @actual=`wc -c $@ | awk '{print $$1}'`; \
710 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
711 if test $$actual -gt $$limit; then \
712 echo "$@ exceeds file size limit:" >&2 ; \
713 echo " limit: $$limit bytes" >&2 ; \
714 echo " actual: $$actual bytes" >&2 ; \
715 echo " excess: $$((actual - limit)) bytes" >&2; \
716 exit 1; \
717 fi
718else
719BOARD_SIZE_CHECK =
720endif
721
722# Statically apply RELA-style relocations (currently arm64 only)
723ifneq ($(CONFIG_STATIC_RELA),)
724# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
725DO_STATIC_RELA = \
726 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
727 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
728 tools/relocate-rela $(2) $(3) $$start $$end
729else
730DO_STATIC_RELA =
731endif
732
733# Always append ALL so that arch config.mk's can add custom ones
734ALL-y += u-boot.srec u-boot.bin System.map u-boot.cfg binary_size_check
735
736ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
737ifeq ($(CONFIG_SPL_FSL_PBL),y)
738ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
739else
740ifneq ($(CONFIG_SECURE_BOOT), y)
741# For Secure Boot The Image needs to be signed and Header must also
742# be included. So The image has to be built explicitly
743ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
744endif
745endif
746ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
747ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
748ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
749ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
750ifeq ($(CONFIG_SPL_FRAMEWORK),y)
751ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
752endif
753ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
754ifneq ($(CONFIG_SPL_TARGET),)
755ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
756endif
757ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
758ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
759ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
760
761ifneq ($(BUILD_ROM),)
762ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
763endif
764
765# enable combined SPL/u-boot/dtb rules for tegra
766ifneq ($(CONFIG_TEGRA),)
767ifeq ($(CONFIG_SPL),y)
768ifeq ($(CONFIG_OF_SEPARATE),y)
769ALL-y += u-boot-dtb-tegra.bin
770else
771ALL-y += u-boot-nodtb-tegra.bin
772endif
773endif
774endif
775
776# Add optional build target if defined in board/cpu/soc headers
777ifneq ($(CONFIG_BUILD_TARGET),)
778ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
779endif
780
781LDFLAGS_u-boot += $(LDFLAGS_FINAL)
782ifneq ($(CONFIG_SYS_TEXT_BASE),)
783LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
784endif
785
786# Normally we fill empty space with 0xff
787quiet_cmd_objcopy = OBJCOPY $@
788cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
789 $(OBJCOPYFLAGS_$(@F)) $< $@
790
791# Provide a version which does not do this, for use by EFI
792quiet_cmd_zobjcopy = OBJCOPY $@
793cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
794
795quiet_cmd_efipayload = OBJCOPY $@
796cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
797
798quiet_cmd_mkimage = MKIMAGE $@
799cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
800 $(if $(KBUILD_VERBOSE:1=), >/dev/null)
801
802quiet_cmd_cat = CAT $@
803cmd_cat = cat $(filter-out $(PHONY), $^) > $@
804
805append = cat $(filter-out $< $(PHONY), $^) >> $@
806
807quiet_cmd_pad_cat = CAT $@
808cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
809
810all: $(ALL-y)
811ifneq ($(CONFIG_SYS_GENERIC_BOARD),y)
812 @echo "===================== WARNING ======================"
813 @echo "Please convert this board to generic board."
814 @echo "Otherwise it will be removed by the end of 2014."
815 @echo "See doc/README.generic-board for further information"
816 @echo "===================================================="
817endif
818ifeq ($(CONFIG_DM_I2C_COMPAT),y)
819 @echo "===================== WARNING ======================"
820 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
821 @echo "(possibly in a subsequent patch in your series)"
822 @echo "before sending patches to the mailing list."
823 @echo "===================================================="
824endif
825
826PHONY += dtbs
827dtbs dts/dt.dtb: checkdtc u-boot
828 $(Q)$(MAKE) $(build)=dts dtbs
829
830u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE
831 $(call if_changed,cat)
832
833%.imx: %.bin
834 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
835
836quiet_cmd_copy = COPY $@
837 cmd_copy = cp $< $@
838
839u-boot.dtb: dts/dt.dtb
840 $(call cmd,copy)
841
842OBJCOPYFLAGS_u-boot.hex := -O ihex
843
844OBJCOPYFLAGS_u-boot.srec := -O srec
845
846u-boot.hex u-boot.srec: u-boot FORCE
847 $(call if_changed,objcopy)
848
849OBJCOPYFLAGS_u-boot.bin := -O binary \
850 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec)
851
852binary_size_check: u-boot.bin FORCE
853 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \
854 map_size=$(shell cat u-boot.map | \
855 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
856 | sed 's/0X//g' \
857 | bc); \
858 if [ "" != "$$map_size" ]; then \
859 if test $$map_size -ne $$file_size; then \
860 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
861 echo " but u-boot.bin shows $$file_size" >&2 ; \
862 exit 1; \
863 fi \
864 fi
865
866u-boot.bin: u-boot FORCE
867 $(call if_changed,objcopy)
868 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
869 $(BOARD_SIZE_CHECK)
870
871u-boot.ldr: u-boot
872 $(CREATE_LDR_ENV)
873 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
874 $(BOARD_SIZE_CHECK)
875
876OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
877
878OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
879
880u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
881 $(call if_changed,objcopy)
882
883#
884# U-Boot entry point, needed for booting of full-blown U-Boot
885# from the SPL U-Boot version.
886#
887ifndef CONFIG_SYS_UBOOT_START
888CONFIG_SYS_UBOOT_START := 0
889endif
890
891# Create a file containing the configuration options the image was built with
892quiet_cmd_cpp_cfg = CFG $@
893cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
894 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
895
896MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
897 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
898 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
899
900MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
901 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
902
903MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
904 -T kwbimage -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE)
905
906MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
907 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
908
909u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
910 $(call if_changed,mkimage)
911
912u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
913 $(call if_changed,mkimage)
914
915MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
916
917u-boot-dtb.img: u-boot-dtb.bin FORCE
918 $(call if_changed,mkimage)
919
920u-boot.sha1: u-boot.bin
921 tools/ubsha1 u-boot.bin
922
923u-boot.dis: u-boot
924 $(OBJDUMP) -d $< > $@
925
926u-boot.cfg: include/config.h
927 $(call if_changed,cpp_cfg)
928
929ifdef CONFIG_TPL
930SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
931else
932SPL_PAYLOAD := u-boot.bin
933endif
934
935OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
936 --pad-to=$(CONFIG_SPL_PAD_TO)
937u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
938 $(call if_changed,pad_cat)
939
940MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
941
942lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
943 $(call if_changed,mkimage)
944
945OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
946
947lpc32xx-boot-0.bin: lpc32xx-spl.img
948 $(call if_changed,objcopy)
949
950OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
951
952lpc32xx-boot-1.bin: lpc32xx-spl.img
953 $(call if_changed,objcopy)
954
955lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img
956 $(call if_changed,cat)
957
958CLEAN_FILES += lpc32xx-*
959
960OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
961 --pad-to=$(CONFIG_TPL_PAD_TO)
962tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
963 $(call if_changed,pad_cat)
964
965SPL: spl/u-boot-spl.bin FORCE
966 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
967
968u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
969 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
970
971MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
972
973u-boot.ubl: u-boot-with-spl.bin FORCE
974 $(call if_changed,mkimage)
975
976MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
977 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
978 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
979spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
980 $(call if_changed,mkimage)
981
982OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
983u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
984 $(call if_changed,pad_cat)
985
986u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
987 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
988u-boot.sb: u-boot.bin spl/u-boot-spl.bin
989 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
990
991# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
992# Both images are created using mkimage (crc etc), so that the ROM
993# bootloader can check its integrity. Padding needs to be done to the
994# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
995# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
996# The resulting image containing both U-Boot images is called u-boot.spr
997MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
998 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
999spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1000 $(call if_changed,mkimage)
1001
1002OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1003 --gap-fill=0xff
1004u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1005 $(call if_changed,pad_cat)
1006
1007ifneq ($(CONFIG_ARCH_SOCFPGA),)
1008quiet_cmd_socboot = SOCBOOT $@
1009cmd_socboot = cat spl/u-boot-spl-dtb.sfp spl/u-boot-spl-dtb.sfp \
1010 spl/u-boot-spl-dtb.sfp spl/u-boot-spl-dtb.sfp \
1011 u-boot-dtb.img > $@ || rm -f $@
1012u-boot-with-spl-dtb.sfp: spl/u-boot-spl-dtb.sfp u-boot-dtb.img FORCE
1013 $(call if_changed,socboot)
1014endif
1015
1016# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1017# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1018# the middle.
1019ifneq ($(CONFIG_X86_RESET_VECTOR),)
1020rom: u-boot.rom FORCE
1021
1022IFDTOOL=$(objtree)/tools/ifdtool
1023IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb
1024IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1)
1025IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot.bin
1026IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin
1027IFDTOOL_FLAGS += -C
1028
1029ifneq ($(CONFIG_HAVE_INTEL_ME),)
1030IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin
1031IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin
1032endif
1033
1034ifneq ($(CONFIG_HAVE_MRC),)
1035IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin
1036endif
1037
1038ifneq ($(CONFIG_HAVE_FSP),)
1039IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE)
1040endif
1041
1042ifneq ($(CONFIG_HAVE_CMC),)
1043IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE)
1044endif
1045
1046ifneq ($(CONFIG_HAVE_VGA_BIOS),)
1047IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE)
1048endif
1049
1050quiet_cmd_ifdtool = IFDTOOL $@
1051cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp;
1052ifneq ($(CONFIG_HAVE_INTEL_ME),)
1053cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp;
1054endif
1055cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp;
1056cmd_ifdtool += mv u-boot.tmp $@
1057
1058u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin
1059 $(call if_changed,ifdtool)
1060
1061OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1062u-boot-x86-16bit.bin: u-boot FORCE
1063 $(call if_changed,objcopy)
1064endif
1065
1066ifneq ($(CONFIG_SUNXI),)
1067OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \
1068 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1069u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \
1070 u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE
1071 $(call if_changed,pad_cat)
1072endif
1073
1074ifneq ($(CONFIG_TEGRA),)
1075OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1076u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1077 $(call if_changed,pad_cat)
1078
1079ifeq ($(CONFIG_OF_SEPARATE),y)
1080u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE
1081 $(call if_changed,cat)
1082endif
1083endif
1084
1085OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1086u-boot-app.efi: u-boot FORCE
1087 $(call if_changed,zobjcopy)
1088
1089u-boot-dtb.bin.o: u-boot-dtb.bin FORCE
1090 $(call if_changed,efipayload)
1091
1092u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1093 $(call if_changed_dep,cpp_lds)
1094
1095# Rule to link the EFI payload which contains a stub and a U-Boot binary
1096quiet_cmd_u-boot_payload ?= LD $@
1097 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1098 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1099 lib/efi/efi.o lib/efi/efi_stub.o u-boot-dtb.bin.o \
1100 $(addprefix arch/$(ARCH)/lib/efi/,$(EFISTUB))
1101
1102u-boot-payload: u-boot-dtb.bin.o u-boot-payload.lds FORCE
1103 $(call if_changed,u-boot_payload)
1104
1105OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1106u-boot-payload.efi: u-boot-payload FORCE
1107 $(call if_changed,zobjcopy)
1108
1109u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1110 $(call if_changed,cat)
1111
1112#Add a target to create boot binary having SPL binary in PBI format
1113#concatenated with u-boot binary. It is need by PowerPC SoC having
1114#internal SRAM <= 512KB.
1115MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1116 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1117 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1118
1119spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1120 $(call if_changed,mkimage)
1121
1122ifeq ($(ARCH),arm)
1123UBOOT_BINLOAD := u-boot.img
1124else
1125UBOOT_BINLOAD := u-boot.bin
1126endif
1127
1128OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1129 --gap-fill=0xff
1130
1131u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1132 $(call if_changed,pad_cat)
1133
1134# PPC4xx needs the SPL at the end of the image, since the reset vector
1135# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1136# and need to introduce a new build target with the full blown U-Boot
1137# at the start padded up to the start of the SPL image. And then concat
1138# the SPL image to the end.
1139
1140OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1141 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1142u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1143 $(call if_changed,pad_cat)
1144
1145# Create a new ELF from a raw binary file. This is useful for arm64
1146# where static relocation needs to be performed on the raw binary,
1147# but certain simulators only accept an ELF file (but don't do the
1148# relocation).
1149# FIXME refactor dts/Makefile to share target/arch detection
1150u-boot.elf: u-boot.bin
1151 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \
1152 $< u-boot-elf.o
1153 @$(LD) u-boot-elf.o -o $@ \
1154 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
1155 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1156
1157# Rule to link u-boot
1158# May be overridden by arch/$(ARCH)/config.mk
1159quiet_cmd_u-boot__ ?= LD $@
1160 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1161 -T u-boot.lds $(u-boot-init) \
1162 --start-group $(u-boot-main) --end-group \
1163 $(PLATFORM_LIBS) -Map u-boot.map
1164
1165quiet_cmd_smap = GEN common/system_map.o
1166cmd_smap = \
1167 smap=`$(call SYSTEM_MAP,u-boot) | \
1168 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1169 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1170 -c $(srctree)/common/system_map.c -o common/system_map.o
1171
1172u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds
1173 $(call if_changed,u-boot__)
1174ifeq ($(CONFIG_KALLSYMS),y)
1175 $(call cmd,smap)
1176 $(call cmd,u-boot__) common/system_map.o
1177endif
1178
1179# The actual objects are generated when descending,
1180# make sure no implicit rule kicks in
1181$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1182
1183# Handle descending into subdirectories listed in $(vmlinux-dirs)
1184# Preset locale variables to speed up the build process. Limit locale
1185# tweaks to this spot to avoid wrong language settings when running
1186# make menuconfig etc.
1187# Error messages still appears in the original language
1188
1189PHONY += $(u-boot-dirs)
1190$(u-boot-dirs): prepare scripts
1191 $(Q)$(MAKE) $(build)=$@
1192
1193tools: prepare
1194# The "tools" are needed early
1195$(filter-out tools, $(u-boot-dirs)): tools
1196# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1197# is "yes"), so compile examples after U-Boot is compiled.
1198examples: $(filter-out examples, $(u-boot-dirs))
1199
1200define filechk_uboot.release
1201 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1202endef
1203
1204# Store (new) UBOOTRELEASE string in include/config/uboot.release
1205include/config/uboot.release: include/config/auto.conf FORCE
1206 $(call filechk,uboot.release)
1207
1208
1209# Things we need to do before we recursively start building the kernel
1210# or the modules are listed in "prepare".
1211# A multi level approach is used. prepareN is processed before prepareN-1.
1212# archprepare is used in arch Makefiles and when processed asm symlink,
1213# version.h and scripts_basic is processed / created.
1214
1215# Listed in dependency order
1216PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1217
1218# prepare3 is used to check if we are building in a separate output directory,
1219# and if so do:
1220# 1) Check that make has not been executed in the kernel src $(srctree)
1221prepare3: include/config/uboot.release
1222ifneq ($(KBUILD_SRC),)
1223 @$(kecho) ' Using $(srctree) as source for U-Boot'
1224 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1225 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1226 echo >&2 " in the '$(srctree)' directory.";\
1227 /bin/false; \
1228 fi;
1229endif
1230
1231# prepare2 creates a makefile if using a separate output directory
1232prepare2: prepare3 outputmakefile
1233
1234prepare1: prepare2 $(version_h) $(timestamp_h) \
1235 include/config/auto.conf
1236ifeq ($(CONFIG_HAVE_GENERIC_BOARD),)
1237ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
1238 @echo >&2 " Your architecture does not support generic board."
1239 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file."
1240 @/bin/false
1241endif
1242endif
1243ifeq ($(wildcard $(LDSCRIPT)),)
1244 @echo >&2 " Could not find linker script."
1245 @/bin/false
1246endif
1247
1248archprepare: prepare1 scripts_basic
1249
1250prepare0: archprepare FORCE
1251 $(Q)$(MAKE) $(build)=.
1252
1253# All the preparing..
1254prepare: prepare0
1255
1256# Generate some files
1257# ---------------------------------------------------------------------------
1258
1259define filechk_version.h
1260 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1261 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1262 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \
1263 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; )
1264endef
1265
1266# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1267# The BSD date on the other hand behaves different and would produce errors
1268# with the misused '-d' switch. Respect that and search a working date with
1269# well known pre- and suffixes for the GNU variant of date.
1270define filechk_timestamp.h
1271 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1272 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1273 DATE=""; \
1274 for date in gdate date.gnu date; do \
1275 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1276 done; \
1277 if test -n "$${DATE}"; then \
1278 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1279 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1280 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1281 else \
1282 return 42; \
1283 fi; \
1284 else \
1285 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1286 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1287 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1288 fi)
1289endef
1290
1291$(version_h): include/config/uboot.release FORCE
1292 $(call filechk,version.h)
1293
1294$(timestamp_h): $(srctree)/Makefile FORCE
1295 $(call filechk,timestamp.h)
1296
1297# ---------------------------------------------------------------------------
1298quiet_cmd_cpp_lds = LDS $@
1299cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1300 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1301
1302u-boot.lds: $(LDSCRIPT) prepare FORCE
1303 $(call if_changed_dep,cpp_lds)
1304
1305spl/u-boot-spl.bin: spl/u-boot-spl
1306 @:
1307spl/u-boot-spl: tools prepare $(if $(CONFIG_OF_SEPARATE),dts/dt.dtb)
1308 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1309
1310spl/sunxi-spl.bin: spl/u-boot-spl
1311 @:
1312
1313spl/u-boot-spl-dtb.sfp: spl/u-boot-spl
1314 @:
1315
1316tpl/u-boot-tpl.bin: tools prepare
1317 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1318
1319TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1320
1321FIND := find
1322FINDFLAGS := -L
1323
1324tags ctags:
1325 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1326 -name '*.[chS]' -print`
1327 ln -s ctags tags
1328
1329etags:
1330 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1331 -name '*.[chS]' -print`
1332cscope:
1333 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1334 cscope.files
1335 cscope -b -q -k
1336
1337SYSTEM_MAP = \
1338 $(NM) $1 | \
1339 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1340 LC_ALL=C sort
1341System.map: u-boot
1342 @$(call SYSTEM_MAP,$<) > $@
1343
1344checkdtc:
1345 @if test $(call dtc-version) -lt 0104; then \
1346 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1347 false; \
1348 fi
1349
1350#########################################################################
1351
1352# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1353# R_AARCH64_RELATIVE (64-bit).
1354checkarmreloc: u-boot
1355 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1356 grep R_A | sort -u`"; \
1357 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1358 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1359 echo "$< contains unexpected relocations: $$RELOC"; \
1360 false; \
1361 fi
1362
1363env: scripts_basic
1364 $(Q)$(MAKE) $(build)=tools/$@
1365
1366tools-only: scripts_basic $(version_h) $(timestamp_h)
1367 $(Q)$(MAKE) $(build)=tools
1368
1369tools-all: export HOST_TOOLS_ALL=y
1370tools-all: env tools ;
1371
1372cross_tools: export CROSS_BUILD_TOOLS=y
1373cross_tools: tools ;
1374
1375.PHONY : CHANGELOG
1376CHANGELOG:
1377 git log --no-merges U-Boot-1_1_5.. | \
1378 unexpand -a | sed -e 's/\s\s*$$//' > $@
1379
1380include/license.h: tools/bin2header COPYING
1381 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1382#########################################################################
1383
1384###
1385# Cleaning is done on three levels.
1386# make clean Delete most generated files
1387# Leave enough to build external modules
1388# make mrproper Delete the current configuration, and all generated files
1389# make distclean Remove editor backup files, patch leftover files and the like
1390
1391# Directories & files removed with 'make clean'
1392CLEAN_DIRS += $(MODVERDIR) \
1393 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1394 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1395
1396CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1397 boot* u-boot* MLO* SPL System.map
1398
1399# Directories & files removed with 'make mrproper'
1400MRPROPER_DIRS += include/config include/generated spl tpl \
1401 .tmp_objdiff
1402MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1403 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1404
1405# clean - Delete most, but leave enough to build external modules
1406#
1407clean: rm-dirs := $(CLEAN_DIRS)
1408clean: rm-files := $(CLEAN_FILES)
1409
1410clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1411
1412clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1413
1414PHONY += $(clean-dirs) clean archclean
1415$(clean-dirs):
1416 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1417
1418# TODO: Do not use *.cfgtmp
1419clean: $(clean-dirs)
1420 $(call cmd,rmdirs)
1421 $(call cmd,rmfiles)
1422 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1423 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1424 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1425 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1426 -o -name '*.symtypes' -o -name 'modules.order' \
1427 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1428 -o -name '*.gcno' \) -type f -print | xargs rm -f
1429
1430# mrproper - Delete all generated files, including .config
1431#
1432mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1433mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1434mrproper-dirs := $(addprefix _mrproper_,scripts)
1435
1436PHONY += $(mrproper-dirs) mrproper archmrproper
1437$(mrproper-dirs):
1438 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1439
1440mrproper: clean $(mrproper-dirs)
1441 $(call cmd,rmdirs)
1442 $(call cmd,rmfiles)
1443 @rm -f arch/*/include/asm/arch
1444
1445# distclean
1446#
1447PHONY += distclean
1448
1449distclean: mrproper
1450 @find $(srctree) $(RCS_FIND_IGNORE) \
1451 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1452 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1453 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1454 -o -name '*.pyc' \) \
1455 -type f -print | xargs rm -f
1456 @rm -f boards.cfg
1457
1458backup:
1459 F=`basename $(srctree)` ; cd .. ; \
1460 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1461
1462help:
1463 @echo 'Cleaning targets:'
1464 @echo ' clean - Remove most generated files but keep the config'
1465 @echo ' mrproper - Remove all generated files + config + various backup files'
1466 @echo ' distclean - mrproper + remove editor backup and patch files'
1467 @echo ''
1468 @echo 'Configuration targets:'
1469 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1470 @echo ''
1471 @echo 'Other generic targets:'
1472 @echo ' all - Build all necessary images depending on configuration'
1473 @echo '* u-boot - Build the bare u-boot'
1474 @echo ' dir/ - Build all files in dir and below'
1475 @echo ' dir/file.[oisS] - Build specified target only'
1476 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1477 @echo ' (requires a recent binutils and recent build (System.map))'
1478 @echo ' tags/ctags - Generate ctags file for editors'
1479 @echo ' etags - Generate etags file for editors'
1480 @echo ' cscope - Generate cscope index'
1481 @echo ' ubootrelease - Output the release version string (use with make -s)'
1482 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1483 @echo ''
1484 @echo 'Static analysers'
1485 @echo ' checkstack - Generate a list of stack hogs'
1486 @echo ''
1487 @echo 'Documentation targets:'
1488 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1489 @echo ''
1490 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1491 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1492 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1493 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1494 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1495 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1496 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1497 @echo ' 1: warnings which may be relevant and do not occur too often'
1498 @echo ' 2: warnings which occur quite often but may still be relevant'
1499 @echo ' 3: more obscure warnings, can most likely be ignored'
1500 @echo ' Multiple levels can be combined with W=12 or W=123'
1501 @echo ''
1502 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1503 @echo 'For further info see the ./README file'
1504
1505
1506# Documentation targets
1507# ---------------------------------------------------------------------------
1508%docs: scripts_basic FORCE
1509 $(Q)$(MAKE) $(build)=scripts build_docproc
1510 $(Q)$(MAKE) $(build)=doc/DocBook $@
1511
1512# Dummies...
1513PHONY += prepare scripts
1514prepare: ;
1515scripts: ;
1516
1517endif #ifeq ($(config-targets),1)
1518endif #ifeq ($(mixed-targets),1)
1519
1520PHONY += checkstack ubootrelease ubootversion
1521
1522checkstack:
1523 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1524 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1525
1526ubootrelease:
1527 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1528
1529ubootversion:
1530 @echo $(UBOOTVERSION)
1531
1532# Single targets
1533# ---------------------------------------------------------------------------
1534# Single targets are compatible with:
1535# - build with mixed source and output
1536# - build with separate output dir 'make O=...'
1537# - external modules
1538#
1539# target-dir => where to store outputfile
1540# build-dir => directory in kernel source tree to use
1541
1542ifeq ($(KBUILD_EXTMOD),)
1543 build-dir = $(patsubst %/,%,$(dir $@))
1544 target-dir = $(dir $@)
1545else
1546 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1547 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1548 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1549endif
1550
1551%.s: %.c prepare scripts FORCE
1552 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1553%.i: %.c prepare scripts FORCE
1554 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1555%.o: %.c prepare scripts FORCE
1556 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1557%.lst: %.c prepare scripts FORCE
1558 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1559%.s: %.S prepare scripts FORCE
1560 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1561%.o: %.S prepare scripts FORCE
1562 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1563%.symtypes: %.c prepare scripts FORCE
1564 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1565
1566# Modules
1567/: prepare scripts FORCE
1568 $(cmd_crmodverdir)
1569 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1570 $(build)=$(build-dir)
1571%/: prepare scripts FORCE
1572 $(cmd_crmodverdir)
1573 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1574 $(build)=$(build-dir)
1575%.ko: prepare scripts FORCE
1576 $(cmd_crmodverdir)
1577 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1578 $(build)=$(build-dir) $(@:.ko=.o)
1579 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1580
1581# FIXME Should go into a make.lib or something
1582# ===========================================================================
1583
1584quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1585 cmd_rmdirs = rm -rf $(rm-dirs)
1586
1587quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1588 cmd_rmfiles = rm -f $(rm-files)
1589
1590# read all saved command lines
1591
1592targets := $(wildcard $(sort $(targets)))
1593cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1594
1595ifneq ($(cmd_files),)
1596 $(cmd_files): ; # Do not try to update included dependency files
1597 include $(cmd_files)
1598endif
1599
1600endif # skip-makefile
1601
1602PHONY += FORCE
1603FORCE:
1604
1605# Declare the contents of the .PHONY variable as phony. We keep that
1606# information in a variable so we can use it in if_changed and friends.
1607.PHONY: $(PHONY)