xref: /openbmc/u-boot/Makefile (revision beb4d65e)
1#
2# SPDX-License-Identifier:	GPL-2.0+
3#
4
5VERSION = 2017
6PATCHLEVEL = 03
7SUBLEVEL =
8EXTRAVERSION = -rc1
9NAME =
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
20MAKEFLAGS += -rR --include-dir=$(CURDIR)
21
22# Avoid funny character set dependencies
23unexport LC_ALL
24LC_COLLATE=C
25LC_NUMERIC=C
26export LC_COLLATE LC_NUMERIC
27
28# Avoid interference with shell env settings
29unexport 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 $@ :<
66#
67# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
68# If KBUILD_VERBOSE equals 1 then the above command is displayed.
69#
70# To put more focus on warnings, be less verbose as default
71# Use 'make V=1' to see the full commands
72
73ifeq ("$(origin V)", "command line")
74  KBUILD_VERBOSE = $(V)
75endif
76ifndef KBUILD_VERBOSE
77  KBUILD_VERBOSE = 0
78endif
79
80ifeq ($(KBUILD_VERBOSE),1)
81  quiet =
82  Q =
83else
84  quiet=quiet_
85  Q = @
86endif
87
88# If the user is running make -s (silent mode), suppress echoing of
89# commands
90
91ifneq ($(filter 4.%,$(MAKE_VERSION)),)	# make-4
92ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
93  quiet=silent_
94endif
95else					# make-3.8x
96ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
97  quiet=silent_
98endif
99endif
100
101export quiet Q KBUILD_VERBOSE
102
103# kbuild supports saving output files in a separate directory.
104# To locate output files in a separate directory two syntaxes are supported.
105# In both cases the working directory must be the root of the kernel src.
106# 1) O=
107# Use "make O=dir/to/store/output/files/"
108#
109# 2) Set KBUILD_OUTPUT
110# Set the environment variable KBUILD_OUTPUT to point to the directory
111# where the output files shall be placed.
112# export KBUILD_OUTPUT=dir/to/store/output/files/
113# make
114#
115# The O= assignment takes precedence over the KBUILD_OUTPUT environment
116# variable.
117
118# KBUILD_SRC is set on invocation of make in OBJ directory
119# KBUILD_SRC is not intended to be used by the regular user (for now)
120ifeq ($(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?
124ifeq ("$(origin O)", "command line")
125  KBUILD_OUTPUT := $(O)
126endif
127
128# That's our default target when none is given on the command line
129PHONY := _all
130_all:
131
132# Cancel implicit rules on top Makefile
133$(CURDIR)/Makefile Makefile: ;
134
135ifneq ($(KBUILD_OUTPUT),)
136# Invoke a second make in the output directory, passing relevant variables
137# check that the output directory actually exists
138saved-output := $(KBUILD_OUTPUT)
139KBUILD_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
144PHONY += $(MAKECMDGOALS) sub-make
145
146$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
147	@:
148
149sub-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
154skip-makefile := 1
155endif # ifneq ($(KBUILD_OUTPUT),)
156endif # ifeq ($(KBUILD_SRC),)
157
158# We process the rest of the Makefile if this is the final invocation of make
159ifeq ($(skip-makefile),)
160
161# Do not print "Entering directory ...",
162# but we want to display it when entering to the output directory
163# so that IDEs/editors are able to understand relative filenames.
164MAKEFLAGS += --no-print-directory
165
166# Call a source code checker (by default, "sparse") as part of the
167# C compilation.
168#
169# Use 'make C=1' to enable checking of only re-compiled files.
170# Use 'make C=2' to enable checking of *all* source files, regardless
171# of whether they are re-compiled or not.
172#
173# See the file "Documentation/sparse.txt" for more details, including
174# where to get the "sparse" utility.
175
176ifeq ("$(origin C)", "command line")
177  KBUILD_CHECKSRC = $(C)
178endif
179ifndef KBUILD_CHECKSRC
180  KBUILD_CHECKSRC = 0
181endif
182
183# Use make M=dir to specify directory of external module to build
184# Old syntax make ... SUBDIRS=$PWD is still supported
185# Setting the environment variable KBUILD_EXTMOD take precedence
186ifdef SUBDIRS
187  KBUILD_EXTMOD ?= $(SUBDIRS)
188endif
189
190ifeq ("$(origin M)", "command line")
191  KBUILD_EXTMOD := $(M)
192endif
193
194# If building an external module we do not care about the all: rule
195# but instead _all depend on modules
196PHONY += all
197ifeq ($(KBUILD_EXTMOD),)
198_all: all
199else
200_all: modules
201endif
202
203ifeq ($(KBUILD_SRC),)
204        # building in the source tree
205        srctree := .
206else
207        ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
208                # building in a subdirectory of the source tree
209                srctree := ..
210        else
211                srctree := $(KBUILD_SRC)
212        endif
213endif
214objtree		:= .
215src		:= $(srctree)
216obj		:= $(objtree)
217
218VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
219
220export srctree objtree VPATH
221
222# Make sure CDPATH settings don't interfere
223unexport CDPATH
224
225#########################################################################
226
227HOSTARCH := $(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
237HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
238	    sed -e 's/\(cygwin\).*/cygwin/')
239
240export	HOSTARCH HOSTOS
241
242#########################################################################
243
244# set default to nothing for native builds
245ifeq ($(HOSTARCH),$(ARCH))
246CROSS_COMPILE ?=
247endif
248
249KCONFIG_CONFIG	?= .config
250export KCONFIG_CONFIG
251
252# SHELL used by kbuild
253CONFIG_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
257HOSTCC       = cc
258HOSTCXX      = c++
259HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
260		$(if $(CONFIG_TOOLS_DEBUG),-g)
261HOSTCXXFLAGS = -O2
262
263ifeq ($(HOSTOS),cygwin)
264HOSTCFLAGS	+= -ansi
265endif
266
267# Mac OS X / Darwin's C preprocessor is Apple specific.  It
268# generates numerous errors and warnings.  We want to bypass it
269# and use GNU C's cpp.	To do this we pass the -traditional-cpp
270# option to the compiler.  Note that the -traditional-cpp flag
271# DOES NOT have the same semantics as GNU C's flag, all it does
272# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
273#
274# Apple's linker is similar, thanks to the new 2 stage linking
275# multiple symbol definitions are treated as errors, hence the
276# -multiply_defined suppress option to turn off this error.
277#
278ifeq ($(HOSTOS),darwin)
279# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
280DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
281DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
282
283os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
284	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
285
286# Snow Leopards build environment has no longer restrictions as described above
287HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
288HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
289HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
290
291# since Lion (10.7) ASLR is on by default, but we use linker generated lists
292# in some host tools which is a problem then ... so disable ASLR for these
293# tools
294HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
295endif
296
297# Decide whether to build built-in, modular, or both.
298# Normally, just do built-in.
299
300KBUILD_MODULES :=
301KBUILD_BUILTIN := 1
302
303# If we have only "make modules", don't compile built-in objects.
304# When we're building modules with modversions, we need to consider
305# the built-in objects during the descend as well, in order to
306# make sure the checksums are up to date before we record them.
307
308ifeq ($(MAKECMDGOALS),modules)
309  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
310endif
311
312# If we have "make <whatever> modules", compile modules
313# in addition to whatever we do anyway.
314# Just "make" or "make all" shall build modules as well
315
316# U-Boot does not need modules
317#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
318#  KBUILD_MODULES := 1
319#endif
320
321#ifeq ($(MAKECMDGOALS),)
322#  KBUILD_MODULES := 1
323#endif
324
325export KBUILD_MODULES KBUILD_BUILTIN
326export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
327
328# We need some generic definitions (do not try to remake the file).
329scripts/Kbuild.include: ;
330include scripts/Kbuild.include
331
332# Make variables (CC, etc...)
333
334AS		= $(CROSS_COMPILE)as
335# Always use GNU ld
336ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
337LD		= $(CROSS_COMPILE)ld.bfd
338else
339LD		= $(CROSS_COMPILE)ld
340endif
341CC		= $(CROSS_COMPILE)gcc
342CPP		= $(CC) -E
343AR		= $(CROSS_COMPILE)ar
344NM		= $(CROSS_COMPILE)nm
345LDR		= $(CROSS_COMPILE)ldr
346STRIP		= $(CROSS_COMPILE)strip
347OBJCOPY		= $(CROSS_COMPILE)objcopy
348OBJDUMP		= $(CROSS_COMPILE)objdump
349AWK		= awk
350PERL		= perl
351PYTHON		= python
352DTC		= dtc
353CHECK		= sparse
354
355CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
356		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
357
358KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
359
360KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
361		   -Wno-format-security \
362		   -fno-builtin -ffreestanding
363KBUILD_AFLAGS   := -D__ASSEMBLY__
364
365# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
366UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
367UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
368
369export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
370export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
371export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
372export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
373export MAKE AWK PERL PYTHON
374export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
375
376export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
377export KBUILD_CFLAGS KBUILD_AFLAGS
378
379# When compiling out-of-tree modules, put MODVERDIR in the module
380# tree rather than in the kernel tree. The kernel tree might
381# even be read-only.
382export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
383
384# Files to ignore in find ... statements
385
386export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
387			  -name CVS -o -name .pc -o -name .hg -o -name .git \) \
388			  -prune -o
389export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
390			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
391
392# ===========================================================================
393# Rules shared between *config targets and build targets
394
395# Basic helpers built in scripts/
396PHONY += scripts_basic
397scripts_basic:
398	$(Q)$(MAKE) $(build)=scripts/basic
399	$(Q)rm -f .tmp_quiet_recordmcount
400
401# To avoid any implicit rule to kick in, define an empty command.
402scripts/basic/%: scripts_basic ;
403
404PHONY += outputmakefile
405# outputmakefile generates a Makefile in the output directory, if using a
406# separate output directory. This allows convenient use of make in the
407# output directory.
408outputmakefile:
409ifneq ($(KBUILD_SRC),)
410	$(Q)ln -fsn $(srctree) source
411	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
412	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
413endif
414
415# To make sure we do not include .config for any of the *config targets
416# catch them early, and hand them over to scripts/kconfig/Makefile
417# It is allowed to specify more targets when calling make, including
418# mixing *config targets and build targets.
419# For example 'make oldconfig all'.
420# Detect when mixed targets is specified, and make a second invocation
421# of make so .config is not included in this case either (for *config).
422
423version_h := include/generated/version_autogenerated.h
424timestamp_h := include/generated/timestamp_autogenerated.h
425
426no-dot-config-targets := clean clobber mrproper distclean \
427			 help %docs check% coccicheck \
428			 ubootversion backup tests
429
430config-targets := 0
431mixed-targets  := 0
432dot-config     := 1
433
434ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
435	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
436		dot-config := 0
437	endif
438endif
439
440ifeq ($(KBUILD_EXTMOD),)
441        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
442                config-targets := 1
443                ifneq ($(words $(MAKECMDGOALS)),1)
444                        mixed-targets := 1
445                endif
446        endif
447endif
448
449ifeq ($(mixed-targets),1)
450# ===========================================================================
451# We're called with mixed targets (*config and build targets).
452# Handle them one by one.
453
454PHONY += $(MAKECMDGOALS) __build_one_by_one
455
456$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
457	@:
458
459__build_one_by_one:
460	$(Q)set -e; \
461	for i in $(MAKECMDGOALS); do \
462		$(MAKE) -f $(srctree)/Makefile $$i; \
463	done
464
465else
466ifeq ($(config-targets),1)
467# ===========================================================================
468# *config targets only - make sure prerequisites are updated, and descend
469# in scripts/kconfig to make the *config target
470
471KBUILD_DEFCONFIG := sandbox_defconfig
472export KBUILD_DEFCONFIG KBUILD_KCONFIG
473
474config: scripts_basic outputmakefile FORCE
475	$(Q)$(MAKE) $(build)=scripts/kconfig $@
476
477%config: scripts_basic outputmakefile FORCE
478	$(Q)$(MAKE) $(build)=scripts/kconfig $@
479
480else
481# ===========================================================================
482# Build targets only - this includes vmlinux, arch specific targets, clean
483# targets and others. In general all targets except *config targets.
484
485ifeq ($(dot-config),1)
486# Read in config
487-include include/config/auto.conf
488
489# Read in dependencies to all Kconfig* files, make sure to run
490# oldconfig if changes are detected.
491-include include/config/auto.conf.cmd
492
493# To avoid any implicit rule to kick in, define an empty command
494$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
495
496# If .config is newer than include/config/auto.conf, someone tinkered
497# with it and forgot to run make oldconfig.
498# if auto.conf.cmd is missing then we are probably in a cleaned tree so
499# we execute the config step to be sure to catch updated Kconfig files
500include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
501	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
502	@# If the following part fails, include/config/auto.conf should be
503	@# deleted so "make silentoldconfig" will be re-run on the next build.
504	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
505		{ rm -f include/config/auto.conf; false; }
506	@# include/config.h has been updated after "make silentoldconfig".
507	@# We need to touch include/config/auto.conf so it gets newer
508	@# than include/config.h.
509	@# Otherwise, 'make silentoldconfig' would be invoked twice.
510	$(Q)touch include/config/auto.conf
511
512-include include/autoconf.mk
513-include include/autoconf.mk.dep
514
515# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
516# is up-to-date. When we switch to a different board configuration, old CONFIG
517# macros are still remaining in include/config/auto.conf. Without the following
518# gimmick, wrong config.mk would be included leading nasty warnings/errors.
519ifneq ($(wildcard $(KCONFIG_CONFIG)),)
520ifneq ($(wildcard include/config/auto.conf),)
521autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
522						include/config/auto.conf)
523ifeq ($(autoconf_is_old),)
524include config.mk
525include arch/$(ARCH)/Makefile
526endif
527endif
528endif
529
530# These are set by the arch-specific config.mk. Make sure they are exported
531# so they can be used when building an EFI application.
532export EFI_LDS		# Filename of EFI link script in arch/$(ARCH)/lib
533export EFI_CRT0		# Filename of EFI CRT0 in arch/$(ARCH)/lib
534export EFI_RELOC	# Filename of EFU relocation code in arch/$(ARCH)/lib
535export CFLAGS_EFI	# Compiler flags to add when building EFI app
536export CFLAGS_NON_EFI	# Compiler flags to remove when building EFI app
537export EFI_TARGET	# binutils target if EFI is natively supported
538
539# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
540# that (or fail if absent).  Otherwise, search for a linker script in a
541# standard location.
542
543ifndef LDSCRIPT
544	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
545	ifdef CONFIG_SYS_LDSCRIPT
546		# need to strip off double quotes
547		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
548	endif
549endif
550
551# If there is no specified link script, we look in a number of places for it
552ifndef LDSCRIPT
553	ifeq ($(wildcard $(LDSCRIPT)),)
554		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
555	endif
556	ifeq ($(wildcard $(LDSCRIPT)),)
557		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
558	endif
559	ifeq ($(wildcard $(LDSCRIPT)),)
560		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
561	endif
562endif
563
564else
565# Dummy target needed, because used as prerequisite
566include/config/auto.conf: ;
567endif # $(dot-config)
568
569#
570# Xtensa linker script cannot be preprocessed with -ansi because of
571# preprocessor operations on strings that don't make C identifiers.
572#
573ifeq ($(CONFIG_XTENSA),)
574LDPPFLAGS	+= -ansi
575endif
576
577ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
578KBUILD_CFLAGS	+= -Os
579else
580KBUILD_CFLAGS	+= -O2
581endif
582
583KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
584KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
585
586KBUILD_CFLAGS	+= -g
587# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
588# option to the assembler.
589KBUILD_AFLAGS	+= -g
590
591# Report stack usage if supported
592ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
593	KBUILD_CFLAGS += -fstack-usage
594endif
595
596KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
597
598# turn jbsr into jsr for m68k
599ifeq ($(ARCH),m68k)
600ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
601KBUILD_AFLAGS += -Wa,-gstabs,-S
602endif
603endif
604
605# Prohibit date/time macros, which would make the build non-deterministic
606KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
607
608include scripts/Makefile.extrawarn
609
610# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
611KBUILD_CPPFLAGS += $(KCPPFLAGS)
612KBUILD_AFLAGS += $(KAFLAGS)
613KBUILD_CFLAGS += $(KCFLAGS)
614
615# Use UBOOTINCLUDE when you must reference the include/ directory.
616# Needed to be compatible with the O= option
617UBOOTINCLUDE    := \
618		-Iinclude \
619		$(if $(KBUILD_SRC), -I$(srctree)/include) \
620		$(if $(CONFIG_SYS_THUMB_BUILD), $(if $(CONFIG_HAS_THUMB2),, \
621			-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
622		-I$(srctree)/arch/$(ARCH)/include \
623		-include $(srctree)/include/linux/kconfig.h
624
625NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
626CHECKFLAGS     += $(NOSTDINC_FLAGS)
627
628# FIX ME
629cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
630							$(NOSTDINC_FLAGS)
631c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
632
633#########################################################################
634# U-Boot objects....order is important (i.e. start must be first)
635
636HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
637
638libs-y += lib/
639libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
640libs-$(CONFIG_OF_EMBED) += dts/
641libs-y += fs/
642libs-y += net/
643libs-y += disk/
644libs-y += drivers/
645libs-y += drivers/dma/
646libs-y += drivers/gpio/
647libs-y += drivers/i2c/
648libs-y += drivers/mmc/
649libs-y += drivers/mtd/
650libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
651libs-y += drivers/mtd/onenand/
652libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
653libs-y += drivers/mtd/spi/
654libs-y += drivers/net/
655libs-y += drivers/net/phy/
656libs-y += drivers/pci/
657libs-y += drivers/power/ \
658	drivers/power/domain/ \
659	drivers/power/fuel_gauge/ \
660	drivers/power/mfd/ \
661	drivers/power/pmic/ \
662	drivers/power/battery/ \
663	drivers/power/regulator/
664libs-y += drivers/spi/
665libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
666libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
667libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
668libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
669libs-y += drivers/serial/
670libs-y += drivers/usb/dwc3/
671libs-y += drivers/usb/common/
672libs-y += drivers/usb/emul/
673libs-y += drivers/usb/eth/
674libs-y += drivers/usb/gadget/
675libs-y += drivers/usb/gadget/udc/
676libs-y += drivers/usb/host/
677libs-y += drivers/usb/musb/
678libs-y += drivers/usb/musb-new/
679libs-y += drivers/usb/phy/
680libs-y += drivers/usb/ulpi/
681libs-y += cmd/
682libs-y += common/
683libs-$(CONFIG_API) += api/
684libs-$(CONFIG_HAS_POST) += post/
685libs-y += test/
686libs-y += test/dm/
687libs-$(CONFIG_UT_ENV) += test/env/
688libs-$(CONFIG_UT_OVERLAY) += test/overlay/
689
690libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
691
692libs-y := $(sort $(libs-y))
693
694u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
695
696u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
697
698libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
699
700u-boot-init := $(head-y)
701u-boot-main := $(libs-y)
702
703
704# Add GCC lib
705ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
706PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
707else
708PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
709endif
710PLATFORM_LIBS += $(PLATFORM_LIBGCC)
711export PLATFORM_LIBS
712export PLATFORM_LIBGCC
713
714# Special flags for CPP when processing the linker script.
715# Pass the version down so we can handle backwards compatibility
716# on the fly.
717LDPPFLAGS += \
718	-include $(srctree)/include/u-boot/u-boot.lds.h \
719	-DCPUDIR=$(CPUDIR) \
720	$(shell $(LD) --version | \
721	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
722
723#########################################################################
724#########################################################################
725
726ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
727BOARD_SIZE_CHECK = \
728	@actual=`wc -c $@ | awk '{print $$1}'`; \
729	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
730	if test $$actual -gt $$limit; then \
731		echo "$@ exceeds file size limit:" >&2 ; \
732		echo "  limit:  $$limit bytes" >&2 ; \
733		echo "  actual: $$actual bytes" >&2 ; \
734		echo "  excess: $$((actual - limit)) bytes" >&2; \
735		exit 1; \
736	fi
737else
738BOARD_SIZE_CHECK =
739endif
740
741# Statically apply RELA-style relocations (currently arm64 only)
742ifneq ($(CONFIG_STATIC_RELA),)
743# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
744DO_STATIC_RELA = \
745	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
746	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
747	tools/relocate-rela $(2) $(3) $$start $$end
748else
749DO_STATIC_RELA =
750endif
751
752# Always append ALL so that arch config.mk's can add custom ones
753ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
754
755ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
756ifeq ($(CONFIG_SPL_FSL_PBL),y)
757ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
758else
759ifneq ($(CONFIG_SECURE_BOOT), y)
760# For Secure Boot The Image needs to be signed and Header must also
761# be included. So The image has to be built explicitly
762ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
763endif
764endif
765ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
766ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
767ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
768else
769ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
770endif
771ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
772ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
773ifeq ($(CONFIG_SPL_FRAMEWORK),y)
774ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
775endif
776ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
777ifneq ($(CONFIG_SPL_TARGET),)
778ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
779endif
780ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
781ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
782ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
783
784ifneq ($(BUILD_ROM),)
785ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
786endif
787
788# enable combined SPL/u-boot/dtb rules for tegra
789ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
790ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
791ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
792endif
793
794# Add optional build target if defined in board/cpu/soc headers
795ifneq ($(CONFIG_BUILD_TARGET),)
796ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
797endif
798
799LDFLAGS_u-boot += $(LDFLAGS_FINAL)
800ifneq ($(CONFIG_SYS_TEXT_BASE),)
801LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
802endif
803
804# Normally we fill empty space with 0xff
805quiet_cmd_objcopy = OBJCOPY $@
806cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
807	$(OBJCOPYFLAGS_$(@F)) $< $@
808
809# Provide a version which does not do this, for use by EFI
810quiet_cmd_zobjcopy = OBJCOPY $@
811cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
812
813quiet_cmd_efipayload = OBJCOPY $@
814cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
815
816MKIMAGEOUTPUT ?= /dev/null
817
818quiet_cmd_mkimage = MKIMAGE $@
819cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
820	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
821
822quiet_cmd_cat = CAT     $@
823cmd_cat = cat $(filter-out $(PHONY), $^) > $@
824
825append = cat $(filter-out $< $(PHONY), $^) >> $@
826
827quiet_cmd_pad_cat = CAT     $@
828cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
829
830cfg: u-boot.cfg
831
832all:		$(ALL-y)
833ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
834	@echo "===================== WARNING ======================"
835	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
836	@echo "(possibly in a subsequent patch in your series)"
837	@echo "before sending patches to the mailing list."
838	@echo "===================================================="
839endif
840	@# Check that this build does not use CONFIG options that we do not
841	@# know about unless they are in Kconfig. All the existing CONFIG
842	@# options are whitelisted, so new ones should not be added.
843	$(srctree)/scripts/check-config.sh u-boot.cfg \
844		$(srctree)/scripts/config_whitelist.txt ${srctree} 1>&2
845
846PHONY += dtbs
847dtbs: dts/dt.dtb
848	@:
849dts/dt.dtb: checkdtc u-boot
850	$(Q)$(MAKE) $(build)=dts dtbs
851
852quiet_cmd_copy = COPY    $@
853      cmd_copy = cp $< $@
854
855ifeq ($(CONFIG_OF_SEPARATE),y)
856u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
857	$(call if_changed,cat)
858
859u-boot.bin: u-boot-dtb.bin FORCE
860	$(call if_changed,copy)
861else
862u-boot.bin: u-boot-nodtb.bin FORCE
863	$(call if_changed,copy)
864endif
865
866%.imx: %.bin
867	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
868
869%.vyb: %.imx
870	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
871
872quiet_cmd_copy = COPY    $@
873      cmd_copy = cp $< $@
874
875u-boot.dtb: dts/dt.dtb
876	$(call cmd,copy)
877
878OBJCOPYFLAGS_u-boot.hex := -O ihex
879
880OBJCOPYFLAGS_u-boot.srec := -O srec
881
882u-boot.hex u-boot.srec: u-boot FORCE
883	$(call if_changed,objcopy)
884
885OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
886		$(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec)
887
888binary_size_check: u-boot-nodtb.bin FORCE
889	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
890	map_size=$(shell cat u-boot.map | \
891		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
892		| sed 's/0X//g' \
893		| bc); \
894	if [ "" != "$$map_size" ]; then \
895		if test $$map_size -ne $$file_size; then \
896			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
897			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
898			exit 1; \
899		fi \
900	fi
901
902u-boot-nodtb.bin: u-boot FORCE
903	$(call if_changed,objcopy)
904	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
905	$(BOARD_SIZE_CHECK)
906
907u-boot.ldr:	u-boot
908		$(CREATE_LDR_ENV)
909		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
910		$(BOARD_SIZE_CHECK)
911
912# binman
913# ---------------------------------------------------------------------------
914quiet_cmd_binman = BINMAN  $@
915cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
916		-I . -I $(srctree)/board/$(BOARDDIR) $<
917
918OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
919
920OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
921
922u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
923	$(call if_changed,objcopy)
924
925#
926# U-Boot entry point, needed for booting of full-blown U-Boot
927# from the SPL U-Boot version.
928#
929ifndef CONFIG_SYS_UBOOT_START
930CONFIG_SYS_UBOOT_START := 0
931endif
932
933# Create a file containing the configuration options the image was built with
934quiet_cmd_cpp_cfg = CFG     $@
935cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
936	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
937
938ifdef CONFIG_SPL_LOAD_FIT
939MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
940	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
941	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
942	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
943else
944MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
945	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
946	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
947MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
948	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
949	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
950u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
951CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
952endif
953
954MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
955
956MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
957	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
958
959MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
960	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
961	$(if $(KEYDIR),-k $(KEYDIR))
962
963MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
964		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
965
966u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
967		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
968	$(call if_changed,mkimage)
969
970u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
971	$(call if_changed,mkimage)
972
973u-boot.sha1:	u-boot.bin
974		tools/ubsha1 u-boot.bin
975
976u-boot.dis:	u-boot
977		$(OBJDUMP) -d $< > $@
978
979ifdef CONFIG_TPL
980SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
981else
982SPL_PAYLOAD := u-boot.bin
983endif
984
985OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
986				   --pad-to=$(CONFIG_SPL_PAD_TO)
987u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
988	$(call if_changed,pad_cat)
989
990MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
991
992lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
993	$(call if_changed,mkimage)
994
995OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
996
997lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
998	$(call if_changed,objcopy)
999
1000OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1001
1002lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1003	$(call if_changed,objcopy)
1004
1005lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1006	$(call if_changed,cat)
1007
1008CLEAN_FILES += lpc32xx-*
1009
1010OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1011				   --pad-to=$(CONFIG_TPL_PAD_TO)
1012tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1013	$(call if_changed,pad_cat)
1014
1015SPL: spl/u-boot-spl.bin FORCE
1016	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
1017
1018u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1019	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
1020
1021MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1022
1023u-boot.ubl: u-boot-with-spl.bin FORCE
1024	$(call if_changed,mkimage)
1025
1026MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1027	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1028	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1029spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1030	$(call if_changed,mkimage)
1031
1032OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1033u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1034	$(call if_changed,pad_cat)
1035
1036u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1037	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1038u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1039	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1040
1041# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1042# Both images are created using mkimage (crc etc), so that the ROM
1043# bootloader can check its integrity. Padding needs to be done to the
1044# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1045# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1046# The resulting image containing both U-Boot images is called u-boot.spr
1047MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1048	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1049spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1050	$(call if_changed,mkimage)
1051
1052OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1053			  --gap-fill=0xff
1054u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1055	$(call if_changed,pad_cat)
1056
1057ifneq ($(CONFIG_ARCH_SOCFPGA),)
1058quiet_cmd_socboot = SOCBOOT $@
1059cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1060			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1061			u-boot.img > $@ || rm -f $@
1062u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1063	$(call if_changed,socboot)
1064endif
1065
1066# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1067# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1068# the middle. This is handled by binman based on an image description in the
1069# board's device tree.
1070ifneq ($(CONFIG_X86_RESET_VECTOR),)
1071rom: u-boot.rom FORCE
1072
1073refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1074	$(call if_changed,copy)
1075
1076quiet_cmd_ldr = LD      $@
1077cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1078	       $(filter-out FORCE,$^) -o $@
1079
1080u-boot.rom: u-boot-x86-16bit.bin u-boot.bin FORCE \
1081		$(if $(CONFIG_HAVE_REFCODE),refcode.bin)
1082	$(call if_changed,binman)
1083
1084OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1085u-boot-x86-16bit.bin: u-boot FORCE
1086	$(call if_changed,objcopy)
1087endif
1088
1089ifneq ($(CONFIG_ARCH_SUNXI),)
1090u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1091	$(call if_changed,binman)
1092endif
1093
1094ifneq ($(CONFIG_TEGRA),)
1095OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1096u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1097	$(call if_changed,pad_cat)
1098
1099OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1100u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1101	$(call if_changed,pad_cat)
1102
1103u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1104	$(call if_changed,copy)
1105endif
1106
1107OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1108u-boot-app.efi: u-boot FORCE
1109	$(call if_changed,zobjcopy)
1110
1111u-boot.bin.o: u-boot.bin FORCE
1112	$(call if_changed,efipayload)
1113
1114u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1115	$(call if_changed_dep,cpp_lds)
1116
1117# Rule to link the EFI payload which contains a stub and a U-Boot binary
1118quiet_cmd_u-boot_payload ?= LD      $@
1119      cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1120      -T u-boot-payload.lds arch/x86/cpu/call32.o \
1121      lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1122      $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1123
1124u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1125	$(call if_changed,u-boot_payload)
1126
1127OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1128u-boot-payload.efi: u-boot-payload FORCE
1129	$(call if_changed,zobjcopy)
1130
1131u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1132	$(call if_changed,cat)
1133
1134#Add a target to create boot binary having SPL binary in PBI format
1135#concatenated with u-boot binary. It is need by PowerPC SoC having
1136#internal SRAM <= 512KB.
1137MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1138		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1139		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1140
1141spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1142	$(call if_changed,mkimage)
1143
1144ifeq ($(ARCH),arm)
1145UBOOT_BINLOAD := u-boot.img
1146else
1147UBOOT_BINLOAD := u-boot.bin
1148endif
1149
1150OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1151			  --gap-fill=0xff
1152
1153u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1154	$(call if_changed,pad_cat)
1155
1156# PPC4xx needs the SPL at the end of the image, since the reset vector
1157# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1158# and need to introduce a new build target with the full blown U-Boot
1159# at the start padded up to the start of the SPL image. And then concat
1160# the SPL image to the end.
1161
1162OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1163	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1164u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1165	$(call if_changed,pad_cat)
1166
1167# Create a new ELF from a raw binary file.  This is useful for arm64
1168# where static relocation needs to be performed on the raw binary,
1169# but certain simulators only accept an ELF file (but don't do the
1170# relocation).
1171# FIXME refactor dts/Makefile to share target/arch detection
1172u-boot.elf: u-boot.bin
1173	@$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
1174		$< u-boot-elf.o
1175	@$(LD) u-boot-elf.o -o $@ \
1176		--defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
1177		-Ttext=$(CONFIG_SYS_TEXT_BASE)
1178
1179# Rule to link u-boot
1180# May be overridden by arch/$(ARCH)/config.mk
1181quiet_cmd_u-boot__ ?= LD      $@
1182      cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1183      -T u-boot.lds $(u-boot-init)                             \
1184      --start-group $(u-boot-main) --end-group                 \
1185      $(PLATFORM_LIBS) -Map u-boot.map
1186
1187quiet_cmd_smap = GEN     common/system_map.o
1188cmd_smap = \
1189	smap=`$(call SYSTEM_MAP,u-boot) | \
1190		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1191	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1192		-c $(srctree)/common/system_map.c -o common/system_map.o
1193
1194u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1195	$(call if_changed,u-boot__)
1196ifeq ($(CONFIG_KALLSYMS),y)
1197	$(call cmd,smap)
1198	$(call cmd,u-boot__) common/system_map.o
1199endif
1200
1201quiet_cmd_sym ?= SYM     $@
1202      cmd_sym ?= $(OBJDUMP) -t $< > $@
1203u-boot.sym: u-boot FORCE
1204	$(call if_changed,sym)
1205
1206# The actual objects are generated when descending,
1207# make sure no implicit rule kicks in
1208$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1209
1210# Handle descending into subdirectories listed in $(vmlinux-dirs)
1211# Preset locale variables to speed up the build process. Limit locale
1212# tweaks to this spot to avoid wrong language settings when running
1213# make menuconfig etc.
1214# Error messages still appears in the original language
1215
1216PHONY += $(u-boot-dirs)
1217$(u-boot-dirs): prepare scripts
1218	$(Q)$(MAKE) $(build)=$@
1219
1220tools: prepare
1221# The "tools" are needed early
1222$(filter-out tools, $(u-boot-dirs)): tools
1223# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1224# is "yes"), so compile examples after U-Boot is compiled.
1225examples: $(filter-out examples, $(u-boot-dirs))
1226
1227define filechk_uboot.release
1228	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1229endef
1230
1231# Store (new) UBOOTRELEASE string in include/config/uboot.release
1232include/config/uboot.release: include/config/auto.conf FORCE
1233	$(call filechk,uboot.release)
1234
1235
1236# Things we need to do before we recursively start building the kernel
1237# or the modules are listed in "prepare".
1238# A multi level approach is used. prepareN is processed before prepareN-1.
1239# archprepare is used in arch Makefiles and when processed asm symlink,
1240# version.h and scripts_basic is processed / created.
1241
1242# Listed in dependency order
1243PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1244
1245# prepare3 is used to check if we are building in a separate output directory,
1246# and if so do:
1247# 1) Check that make has not been executed in the kernel src $(srctree)
1248prepare3: include/config/uboot.release
1249ifneq ($(KBUILD_SRC),)
1250	@$(kecho) '  Using $(srctree) as source for U-Boot'
1251	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1252		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1253		echo >&2 "  in the '$(srctree)' directory.";\
1254		/bin/false; \
1255	fi;
1256endif
1257
1258# prepare2 creates a makefile if using a separate output directory
1259prepare2: prepare3 outputmakefile
1260
1261prepare1: prepare2 $(version_h) $(timestamp_h) \
1262                   include/config/auto.conf
1263ifeq ($(wildcard $(LDSCRIPT)),)
1264	@echo >&2 "  Could not find linker script."
1265	@/bin/false
1266endif
1267
1268archprepare: prepare1 scripts_basic
1269
1270prepare0: archprepare FORCE
1271	$(Q)$(MAKE) $(build)=.
1272
1273# All the preparing..
1274prepare: prepare0
1275
1276# Generate some files
1277# ---------------------------------------------------------------------------
1278
1279define 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 \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1283	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1284endef
1285
1286# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1287# The BSD date on the other hand behaves different and would produce errors
1288# with the misused '-d' switch.  Respect that and search a working date with
1289# well known pre- and suffixes for the GNU variant of date.
1290define filechk_timestamp.h
1291	(if test -n "$${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)
1311endef
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# ---------------------------------------------------------------------------
1320quiet_cmd_cpp_lds = LDS     $@
1321cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1322		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1323
1324u-boot.lds: $(LDSCRIPT) prepare FORCE
1325	$(call if_changed_dep,cpp_lds)
1326
1327spl/u-boot-spl.bin: spl/u-boot-spl
1328	@:
1329spl/u-boot-spl: tools prepare \
1330		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1331	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1332
1333spl/sunxi-spl.bin: spl/u-boot-spl
1334	@:
1335
1336spl/u-boot-spl.sfp: spl/u-boot-spl
1337	@:
1338
1339spl/boot.bin: spl/u-boot-spl
1340	@:
1341
1342tpl/u-boot-tpl.bin: tools prepare
1343	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1344
1345TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1346
1347FIND := find
1348FINDFLAGS := -L
1349
1350tags ctags:
1351		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1352						-name '*.[chS]' -print`
1353		ln -s ctags tags
1354
1355etags:
1356		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1357						-name '*.[chS]' -print`
1358cscope:
1359		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1360						cscope.files
1361		cscope -b -q -k
1362
1363SYSTEM_MAP = \
1364		$(NM) $1 | \
1365		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1366		LC_ALL=C sort
1367System.map:	u-boot
1368		@$(call SYSTEM_MAP,$<) > $@
1369
1370checkdtc:
1371	@if test $(call dtc-version) -lt 0104; then \
1372		echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1373		false; \
1374	fi
1375
1376#########################################################################
1377
1378# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1379# R_AARCH64_RELATIVE (64-bit).
1380checkarmreloc: u-boot
1381	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1382		grep R_A | sort -u`"; \
1383	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1384		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1385		echo "$< contains unexpected relocations: $$RELOC"; \
1386		false; \
1387	fi
1388
1389env: scripts_basic
1390	$(Q)$(MAKE) $(build)=tools/$@
1391
1392tools-only: scripts_basic $(version_h) $(timestamp_h)
1393	$(Q)$(MAKE) $(build)=tools
1394
1395tools-all: export HOST_TOOLS_ALL=y
1396tools-all: env tools ;
1397
1398cross_tools: export CROSS_BUILD_TOOLS=y
1399cross_tools: tools ;
1400
1401.PHONY : CHANGELOG
1402CHANGELOG:
1403	git log --no-merges U-Boot-1_1_5.. | \
1404	unexpand -a | sed -e 's/\s\s*$$//' > $@
1405
1406#########################################################################
1407
1408###
1409# Cleaning is done on three levels.
1410# make clean     Delete most generated files
1411#                Leave enough to build external modules
1412# make mrproper  Delete the current configuration, and all generated files
1413# make distclean Remove editor backup files, patch leftover files and the like
1414
1415# Directories & files removed with 'make clean'
1416CLEAN_DIRS  += $(MODVERDIR) \
1417	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1418			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1419
1420CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h include/license.h \
1421	       boot* u-boot* MLO* SPL System.map
1422
1423# Directories & files removed with 'make mrproper'
1424MRPROPER_DIRS  += include/config include/generated spl tpl \
1425		  .tmp_objdiff
1426MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1427		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1428
1429# clean - Delete most, but leave enough to build external modules
1430#
1431clean: rm-dirs  := $(CLEAN_DIRS)
1432clean: rm-files := $(CLEAN_FILES)
1433
1434clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1435
1436clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1437
1438PHONY += $(clean-dirs) clean archclean
1439$(clean-dirs):
1440	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1441
1442# TODO: Do not use *.cfgtmp
1443clean: $(clean-dirs)
1444	$(call cmd,rmdirs)
1445	$(call cmd,rmfiles)
1446	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1447		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1448		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1449		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1450		-o -name '*.symtypes' -o -name 'modules.order' \
1451		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1452		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1453		-o -name '*.gcno' \) -type f -print | xargs rm -f
1454
1455# mrproper - Delete all generated files, including .config
1456#
1457mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1458mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1459mrproper-dirs      := $(addprefix _mrproper_,scripts)
1460
1461PHONY += $(mrproper-dirs) mrproper archmrproper
1462$(mrproper-dirs):
1463	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1464
1465mrproper: clean $(mrproper-dirs)
1466	$(call cmd,rmdirs)
1467	$(call cmd,rmfiles)
1468	@rm -f arch/*/include/asm/arch
1469
1470# distclean
1471#
1472PHONY += distclean
1473
1474distclean: 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
1483backup:
1484	F=`basename $(srctree)` ; cd .. ; \
1485	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1486
1487help:
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 $(srctree)/scripts/kconfig/Makefile help
1495	@echo  ''
1496	@echo  'Other generic targets:'
1497	@echo  '  all		  - Build all necessary images depending on configuration'
1498	@echo  '  tests		  - Build U-Boot for sandbox and run tests'
1499	@echo  '* u-boot	  - Build the bare u-boot'
1500	@echo  '  dir/            - Build all files in dir and below'
1501	@echo  '  dir/file.[oisS] - Build specified target only'
1502	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1503	@echo  '                    (requires a recent binutils and recent build (System.map))'
1504	@echo  '  tags/ctags	  - Generate ctags file for editors'
1505	@echo  '  etags		  - Generate etags file for editors'
1506	@echo  '  cscope	  - Generate cscope index'
1507	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
1508	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
1509	@echo  "  cfg		  - Don't build, just create the .cfg files"
1510	@echo  ''
1511	@echo  'Static analysers'
1512	@echo  '  checkstack      - Generate a list of stack hogs'
1513	@echo  ''
1514	@echo  'Documentation targets:'
1515	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1516	@echo  ''
1517	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1518	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1519	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1520	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1521	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1522	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1523	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1524	@echo  '		1: warnings which may be relevant and do not occur too often'
1525	@echo  '		2: warnings which occur quite often but may still be relevant'
1526	@echo  '		3: more obscure warnings, can most likely be ignored'
1527	@echo  '		Multiple levels can be combined with W=12 or W=123'
1528	@echo  ''
1529	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1530	@echo  'For further info see the ./README file'
1531
1532tests:
1533	$(srctree)/test/run
1534
1535# Documentation targets
1536# ---------------------------------------------------------------------------
1537%docs: scripts_basic FORCE
1538	$(Q)$(MAKE) $(build)=scripts build_docproc
1539	$(Q)$(MAKE) $(build)=doc/DocBook $@
1540
1541# Dummies...
1542PHONY += prepare scripts
1543prepare: ;
1544scripts: ;
1545
1546endif #ifeq ($(config-targets),1)
1547endif #ifeq ($(mixed-targets),1)
1548
1549PHONY += checkstack ubootrelease ubootversion
1550
1551checkstack:
1552	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1553	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1554
1555ubootrelease:
1556	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1557
1558ubootversion:
1559	@echo $(UBOOTVERSION)
1560
1561# Single targets
1562# ---------------------------------------------------------------------------
1563# Single targets are compatible with:
1564# - build with mixed source and output
1565# - build with separate output dir 'make O=...'
1566# - external modules
1567#
1568#  target-dir => where to store outputfile
1569#  build-dir  => directory in kernel source tree to use
1570
1571ifeq ($(KBUILD_EXTMOD),)
1572        build-dir  = $(patsubst %/,%,$(dir $@))
1573        target-dir = $(dir $@)
1574else
1575        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1576        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1577        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1578endif
1579
1580%.s: %.c prepare scripts FORCE
1581	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1582%.i: %.c prepare scripts FORCE
1583	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1584%.o: %.c prepare scripts FORCE
1585	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1586%.lst: %.c prepare scripts FORCE
1587	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1588%.s: %.S prepare scripts FORCE
1589	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1590%.o: %.S prepare scripts FORCE
1591	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1592%.symtypes: %.c prepare scripts FORCE
1593	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1594
1595# Modules
1596/: prepare scripts FORCE
1597	$(cmd_crmodverdir)
1598	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1599	$(build)=$(build-dir)
1600%/: prepare scripts FORCE
1601	$(cmd_crmodverdir)
1602	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1603	$(build)=$(build-dir)
1604%.ko: prepare scripts FORCE
1605	$(cmd_crmodverdir)
1606	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1607	$(build)=$(build-dir) $(@:.ko=.o)
1608	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1609
1610# FIXME Should go into a make.lib or something
1611# ===========================================================================
1612
1613quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1614      cmd_rmdirs = rm -rf $(rm-dirs)
1615
1616quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1617      cmd_rmfiles = rm -f $(rm-files)
1618
1619# read all saved command lines
1620
1621targets := $(wildcard $(sort $(targets)))
1622cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1623
1624ifneq ($(cmd_files),)
1625  $(cmd_files): ;	# Do not try to update included dependency files
1626  include $(cmd_files)
1627endif
1628
1629endif	# skip-makefile
1630
1631PHONY += FORCE
1632FORCE:
1633
1634# Declare the contents of the .PHONY variable as phony.  We keep that
1635# information in a variable so we can use it in if_changed and friends.
1636.PHONY: $(PHONY)
1637