xref: /openbmc/u-boot/Makefile (revision fa87abb6)
1#
2# SPDX-License-Identifier:	GPL-2.0+
3#
4
5VERSION = 2017
6PATCHLEVEL = 07
7SUBLEVEL =
8EXTRAVERSION =
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 CHECK CHECKFLAGS DTC DTC_FLAGS
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
485# Additional helpers built in scripts/
486# Carefully list dependencies so we do not try to build scripts twice
487# in parallel
488PHONY += scripts
489scripts: scripts_basic include/config/auto.conf
490	$(Q)$(MAKE) $(build)=$(@)
491
492ifeq ($(dot-config),1)
493# Read in config
494-include include/config/auto.conf
495
496# Read in dependencies to all Kconfig* files, make sure to run
497# oldconfig if changes are detected.
498-include include/config/auto.conf.cmd
499
500# To avoid any implicit rule to kick in, define an empty command
501$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
502
503# If .config is newer than include/config/auto.conf, someone tinkered
504# with it and forgot to run make oldconfig.
505# if auto.conf.cmd is missing then we are probably in a cleaned tree so
506# we execute the config step to be sure to catch updated Kconfig files
507include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
508	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
509	@# If the following part fails, include/config/auto.conf should be
510	@# deleted so "make silentoldconfig" will be re-run on the next build.
511	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
512		{ rm -f include/config/auto.conf; false; }
513	@# include/config.h has been updated after "make silentoldconfig".
514	@# We need to touch include/config/auto.conf so it gets newer
515	@# than include/config.h.
516	@# Otherwise, 'make silentoldconfig' would be invoked twice.
517	$(Q)touch include/config/auto.conf
518
519u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
520	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
521
522-include include/autoconf.mk
523-include include/autoconf.mk.dep
524
525# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
526# is up-to-date. When we switch to a different board configuration, old CONFIG
527# macros are still remaining in include/config/auto.conf. Without the following
528# gimmick, wrong config.mk would be included leading nasty warnings/errors.
529ifneq ($(wildcard $(KCONFIG_CONFIG)),)
530ifneq ($(wildcard include/config/auto.conf),)
531autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
532						include/config/auto.conf)
533ifeq ($(autoconf_is_old),)
534include config.mk
535include arch/$(ARCH)/Makefile
536endif
537endif
538endif
539
540# These are set by the arch-specific config.mk. Make sure they are exported
541# so they can be used when building an EFI application.
542export EFI_LDS		# Filename of EFI link script in arch/$(ARCH)/lib
543export EFI_CRT0		# Filename of EFI CRT0 in arch/$(ARCH)/lib
544export EFI_RELOC	# Filename of EFU relocation code in arch/$(ARCH)/lib
545export CFLAGS_EFI	# Compiler flags to add when building EFI app
546export CFLAGS_NON_EFI	# Compiler flags to remove when building EFI app
547export EFI_TARGET	# binutils target if EFI is natively supported
548
549# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
550# that (or fail if absent).  Otherwise, search for a linker script in a
551# standard location.
552
553ifndef LDSCRIPT
554	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
555	ifdef CONFIG_SYS_LDSCRIPT
556		# need to strip off double quotes
557		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
558	endif
559endif
560
561# If there is no specified link script, we look in a number of places for it
562ifndef LDSCRIPT
563	ifeq ($(wildcard $(LDSCRIPT)),)
564		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
565	endif
566	ifeq ($(wildcard $(LDSCRIPT)),)
567		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
568	endif
569	ifeq ($(wildcard $(LDSCRIPT)),)
570		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
571	endif
572endif
573
574else
575# Dummy target needed, because used as prerequisite
576include/config/auto.conf: ;
577endif # $(dot-config)
578
579#
580# Xtensa linker script cannot be preprocessed with -ansi because of
581# preprocessor operations on strings that don't make C identifiers.
582#
583ifeq ($(CONFIG_XTENSA),)
584LDPPFLAGS	+= -ansi
585endif
586
587ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
588KBUILD_CFLAGS	+= -Os
589else
590KBUILD_CFLAGS	+= -O2
591endif
592
593KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
594KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
595
596KBUILD_CFLAGS	+= -g
597# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
598# option to the assembler.
599KBUILD_AFLAGS	+= -g
600
601# Report stack usage if supported
602ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
603	KBUILD_CFLAGS += -fstack-usage
604endif
605
606KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
607
608# turn jbsr into jsr for m68k
609ifeq ($(ARCH),m68k)
610ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
611KBUILD_AFLAGS += -Wa,-gstabs,-S
612endif
613endif
614
615# Prohibit date/time macros, which would make the build non-deterministic
616KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
617
618include scripts/Makefile.extrawarn
619
620# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
621KBUILD_CPPFLAGS += $(KCPPFLAGS)
622KBUILD_AFLAGS += $(KAFLAGS)
623KBUILD_CFLAGS += $(KCFLAGS)
624
625# Use UBOOTINCLUDE when you must reference the include/ directory.
626# Needed to be compatible with the O= option
627UBOOTINCLUDE    := \
628		-Iinclude \
629		$(if $(KBUILD_SRC), -I$(srctree)/include) \
630		$(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
631			$(if $(CONFIG_HAS_THUMB2),, \
632				-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
633		-I$(srctree)/arch/$(ARCH)/include \
634		-include $(srctree)/include/linux/kconfig.h
635
636NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
637CHECKFLAGS     += $(NOSTDINC_FLAGS)
638
639# FIX ME
640cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
641							$(NOSTDINC_FLAGS)
642c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
643
644#########################################################################
645# U-Boot objects....order is important (i.e. start must be first)
646
647HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
648
649libs-y += lib/
650libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
651libs-$(CONFIG_OF_EMBED) += dts/
652libs-y += fs/
653libs-y += net/
654libs-y += disk/
655libs-y += drivers/
656libs-y += drivers/dma/
657libs-y += drivers/gpio/
658libs-y += drivers/i2c/
659libs-y += drivers/mtd/
660libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
661libs-y += drivers/mtd/onenand/
662libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
663libs-y += drivers/mtd/spi/
664libs-y += drivers/net/
665libs-y += drivers/net/phy/
666libs-y += drivers/pci/
667libs-y += drivers/power/ \
668	drivers/power/domain/ \
669	drivers/power/fuel_gauge/ \
670	drivers/power/mfd/ \
671	drivers/power/pmic/ \
672	drivers/power/battery/ \
673	drivers/power/regulator/
674libs-y += drivers/spi/
675libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
676libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
677libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
678libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
679libs-y += drivers/serial/
680libs-y += drivers/usb/dwc3/
681libs-y += drivers/usb/common/
682libs-y += drivers/usb/emul/
683libs-y += drivers/usb/eth/
684libs-y += drivers/usb/gadget/
685libs-y += drivers/usb/gadget/udc/
686libs-y += drivers/usb/host/
687libs-y += drivers/usb/musb/
688libs-y += drivers/usb/musb-new/
689libs-y += drivers/usb/phy/
690libs-y += drivers/usb/ulpi/
691libs-y += cmd/
692libs-y += common/
693libs-$(CONFIG_API) += api/
694libs-$(CONFIG_HAS_POST) += post/
695libs-y += test/
696libs-y += test/dm/
697libs-$(CONFIG_UT_ENV) += test/env/
698libs-$(CONFIG_UT_OVERLAY) += test/overlay/
699
700libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
701
702libs-y := $(sort $(libs-y))
703
704u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
705
706u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
707
708libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
709
710u-boot-init := $(head-y)
711u-boot-main := $(libs-y)
712
713
714# Add GCC lib
715ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
716PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
717else
718PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
719endif
720PLATFORM_LIBS += $(PLATFORM_LIBGCC)
721export PLATFORM_LIBS
722export PLATFORM_LIBGCC
723
724# Special flags for CPP when processing the linker script.
725# Pass the version down so we can handle backwards compatibility
726# on the fly.
727LDPPFLAGS += \
728	-include $(srctree)/include/u-boot/u-boot.lds.h \
729	-DCPUDIR=$(CPUDIR) \
730	$(shell $(LD) --version | \
731	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
732
733#########################################################################
734#########################################################################
735
736ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
737BOARD_SIZE_CHECK = \
738	@actual=`wc -c $@ | awk '{print $$1}'`; \
739	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
740	if test $$actual -gt $$limit; then \
741		echo "$@ exceeds file size limit:" >&2 ; \
742		echo "  limit:  $$limit bytes" >&2 ; \
743		echo "  actual: $$actual bytes" >&2 ; \
744		echo "  excess: $$((actual - limit)) bytes" >&2; \
745		exit 1; \
746	fi
747else
748BOARD_SIZE_CHECK =
749endif
750
751# Statically apply RELA-style relocations (currently arm64 only)
752# This is useful for arm64 where static relocation needs to be performed on
753# the raw binary, but certain simulators only accept an ELF file (but don't
754# do the relocation).
755ifneq ($(CONFIG_STATIC_RELA),)
756# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
757DO_STATIC_RELA = \
758	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
759	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
760	tools/relocate-rela $(2) $(3) $$start $$end
761else
762DO_STATIC_RELA =
763endif
764
765# Always append ALL so that arch config.mk's can add custom ones
766ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
767
768ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
769ifeq ($(CONFIG_SPL_FSL_PBL),y)
770ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
771else
772ifneq ($(CONFIG_SECURE_BOOT), y)
773# For Secure Boot The Image needs to be signed and Header must also
774# be included. So The image has to be built explicitly
775ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
776endif
777endif
778ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
779ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
780ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
781else
782ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
783endif
784ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
785ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
786ifeq ($(CONFIG_SPL_FRAMEWORK),y)
787ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
788endif
789ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
790ifneq ($(CONFIG_SPL_TARGET),)
791ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
792endif
793ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
794ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
795ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
796
797ifneq ($(BUILD_ROM),)
798ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
799endif
800
801# enable combined SPL/u-boot/dtb rules for tegra
802ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
803ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
804ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
805endif
806
807# Add optional build target if defined in board/cpu/soc headers
808ifneq ($(CONFIG_BUILD_TARGET),)
809ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
810endif
811
812LDFLAGS_u-boot += $(LDFLAGS_FINAL)
813
814# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
815LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
816
817ifneq ($(CONFIG_SYS_TEXT_BASE),)
818LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
819endif
820
821# Normally we fill empty space with 0xff
822quiet_cmd_objcopy = OBJCOPY $@
823cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
824	$(OBJCOPYFLAGS_$(@F)) $< $@
825
826# Provide a version which does not do this, for use by EFI
827quiet_cmd_zobjcopy = OBJCOPY $@
828cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
829
830quiet_cmd_efipayload = OBJCOPY $@
831cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
832
833MKIMAGEOUTPUT ?= /dev/null
834
835quiet_cmd_mkimage = MKIMAGE $@
836cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
837	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
838
839quiet_cmd_mkfitimage = MKIMAGE $@
840cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
841	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
842
843quiet_cmd_cat = CAT     $@
844cmd_cat = cat $(filter-out $(PHONY), $^) > $@
845
846append = cat $(filter-out $< $(PHONY), $^) >> $@
847
848quiet_cmd_pad_cat = CAT     $@
849cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
850
851cfg: u-boot.cfg
852
853quiet_cmd_cfgcheck = CFGCHK  $2
854cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
855		$(srctree)/scripts/config_whitelist.txt $(srctree)
856
857all:		$(ALL-y) cfg
858ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
859	@echo "===================== WARNING ======================"
860	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
861	@echo "(possibly in a subsequent patch in your series)"
862	@echo "before sending patches to the mailing list."
863	@echo "===================================================="
864endif
865	@# Check that this build does not use CONFIG options that we do not
866	@# know about unless they are in Kconfig. All the existing CONFIG
867	@# options are whitelisted, so new ones should not be added.
868	$(call cmd,cfgcheck,u-boot.cfg)
869
870PHONY += dtbs
871dtbs: dts/dt.dtb
872	@:
873dts/dt.dtb: checkdtc u-boot
874	$(Q)$(MAKE) $(build)=dts dtbs
875
876quiet_cmd_copy = COPY    $@
877      cmd_copy = cp $< $@
878
879ifeq ($(CONFIG_FIT_EMBED),y)
880
881fit-dtb.blob: dts/dt.dtb FORCE
882	$(call if_changed,mkimage)
883
884MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
885	-a 0 -e 0 -E \
886	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
887
888u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
889	$(call if_changed,cat)
890
891u-boot.bin: u-boot-fit-dtb.bin FORCE
892	$(call if_changed,copy)
893else ifeq ($(CONFIG_OF_SEPARATE),y)
894u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
895	$(call if_changed,cat)
896
897u-boot.bin: u-boot-dtb.bin FORCE
898	$(call if_changed,copy)
899else
900u-boot.bin: u-boot-nodtb.bin FORCE
901	$(call if_changed,copy)
902endif
903
904%.imx: %.bin
905	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
906
907%.vyb: %.imx
908	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
909
910quiet_cmd_copy = COPY    $@
911      cmd_copy = cp $< $@
912
913u-boot.dtb: dts/dt.dtb
914	$(call cmd,copy)
915
916OBJCOPYFLAGS_u-boot.hex := -O ihex
917
918OBJCOPYFLAGS_u-boot.srec := -O srec
919
920u-boot.hex u-boot.srec: u-boot FORCE
921	$(call if_changed,objcopy)
922
923OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
924		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
925
926binary_size_check: u-boot-nodtb.bin FORCE
927	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
928	map_size=$(shell cat u-boot.map | \
929		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
930		| sed 's/0X//g' \
931		| bc); \
932	if [ "" != "$$map_size" ]; then \
933		if test $$map_size -ne $$file_size; then \
934			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
935			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
936			exit 1; \
937		fi \
938	fi
939
940u-boot-nodtb.bin: u-boot FORCE
941	$(call if_changed,objcopy)
942	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
943	$(BOARD_SIZE_CHECK)
944
945u-boot.ldr:	u-boot
946		$(CREATE_LDR_ENV)
947		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
948		$(BOARD_SIZE_CHECK)
949
950# binman
951# ---------------------------------------------------------------------------
952quiet_cmd_binman = BINMAN  $@
953cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
954		-I . -I $(srctree)/board/$(BOARDDIR) $<
955
956OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
957
958OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
959
960u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
961	$(call if_changed,objcopy)
962
963#
964# U-Boot entry point, needed for booting of full-blown U-Boot
965# from the SPL U-Boot version.
966#
967ifndef CONFIG_SYS_UBOOT_START
968CONFIG_SYS_UBOOT_START := 0
969endif
970
971# Create a file containing the configuration options the image was built with
972quiet_cmd_cpp_cfg = CFG     $@
973cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
974	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
975
976# Boards with more complex image requirments can provide an .its source file
977# or a generator script
978ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
979U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
980else
981ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
982U_BOOT_ITS := u-boot.its
983$(U_BOOT_ITS): FORCE
984	$(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
985	$(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
986endif
987endif
988
989ifdef CONFIG_SPL_LOAD_FIT
990MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
991	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
992	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
993	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
994else
995MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
996	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
997	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
998MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
999	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1000	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1001u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1002CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1003endif
1004
1005MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1006
1007MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1008	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1009
1010MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1011	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1012	$(if $(KEYDIR),-k $(KEYDIR))
1013
1014MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1015		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1016
1017u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1018		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1019	$(call if_changed,mkimage)
1020
1021u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1022	$(call if_changed,mkfitimage)
1023
1024u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1025	$(call if_changed,mkimage)
1026
1027u-boot.sha1:	u-boot.bin
1028		tools/ubsha1 u-boot.bin
1029
1030u-boot.dis:	u-boot
1031		$(OBJDUMP) -d $< > $@
1032
1033ifdef CONFIG_TPL
1034SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1035else
1036SPL_PAYLOAD := u-boot.bin
1037endif
1038
1039OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1040				   --pad-to=$(CONFIG_SPL_PAD_TO)
1041u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1042	$(call if_changed,pad_cat)
1043
1044MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1045
1046lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1047	$(call if_changed,mkimage)
1048
1049OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1050
1051lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1052	$(call if_changed,objcopy)
1053
1054OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1055
1056lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1057	$(call if_changed,objcopy)
1058
1059lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1060	$(call if_changed,cat)
1061
1062CLEAN_FILES += lpc32xx-*
1063
1064OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1065				   --pad-to=$(CONFIG_TPL_PAD_TO)
1066tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1067	$(call if_changed,pad_cat)
1068
1069SPL: spl/u-boot-spl.bin FORCE
1070	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1071
1072u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1073	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1074
1075MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1076
1077u-boot.ubl: u-boot-with-spl.bin FORCE
1078	$(call if_changed,mkimage)
1079
1080MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1081	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1082	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1083spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1084	$(call if_changed,mkimage)
1085
1086OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1087u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1088	$(call if_changed,pad_cat)
1089
1090u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1091	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1092u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1093	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1094
1095# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1096# Both images are created using mkimage (crc etc), so that the ROM
1097# bootloader can check its integrity. Padding needs to be done to the
1098# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1099# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1100# The resulting image containing both U-Boot images is called u-boot.spr
1101MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1102	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1103spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1104	$(call if_changed,mkimage)
1105
1106OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1107			  --gap-fill=0xff
1108u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1109	$(call if_changed,pad_cat)
1110
1111ifneq ($(CONFIG_ARCH_SOCFPGA),)
1112quiet_cmd_socboot = SOCBOOT $@
1113cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1114			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1115			u-boot.img > $@ || rm -f $@
1116u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1117	$(call if_changed,socboot)
1118endif
1119
1120# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1121# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1122# the middle. This is handled by binman based on an image description in the
1123# board's device tree.
1124ifneq ($(CONFIG_X86_RESET_VECTOR),)
1125rom: u-boot.rom FORCE
1126
1127refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1128	$(call if_changed,copy)
1129
1130quiet_cmd_ldr = LD      $@
1131cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1132	       $(filter-out FORCE,$^) -o $@
1133
1134u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1135		$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1136		$(if $(CONFIG_HAVE_REFCODE),refcode.bin) checkbinman FORCE
1137	$(call if_changed,binman)
1138
1139OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1140u-boot-x86-16bit.bin: u-boot FORCE
1141	$(call if_changed,objcopy)
1142endif
1143
1144ifneq ($(CONFIG_ARCH_SUNXI),)
1145u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb \
1146		checkbinman FORCE
1147	$(call if_changed,binman)
1148endif
1149
1150ifneq ($(CONFIG_TEGRA),)
1151OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1152u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1153	$(call if_changed,pad_cat)
1154
1155OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1156u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1157	$(call if_changed,pad_cat)
1158
1159u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1160	$(call if_changed,copy)
1161endif
1162
1163OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1164u-boot-app.efi: u-boot FORCE
1165	$(call if_changed,zobjcopy)
1166
1167u-boot.bin.o: u-boot.bin FORCE
1168	$(call if_changed,efipayload)
1169
1170u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1171	$(call if_changed_dep,cpp_lds)
1172
1173# Rule to link the EFI payload which contains a stub and a U-Boot binary
1174quiet_cmd_u-boot_payload ?= LD      $@
1175      cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1176      -T u-boot-payload.lds arch/x86/cpu/call32.o \
1177      lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1178      $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1179
1180u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1181	$(call if_changed,u-boot_payload)
1182
1183OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1184u-boot-payload.efi: u-boot-payload FORCE
1185	$(call if_changed,zobjcopy)
1186
1187u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1188	$(call if_changed,cat)
1189
1190#Add a target to create boot binary having SPL binary in PBI format
1191#concatenated with u-boot binary. It is need by PowerPC SoC having
1192#internal SRAM <= 512KB.
1193MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1194		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1195		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1196
1197spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1198	$(call if_changed,mkimage)
1199
1200ifeq ($(ARCH),arm)
1201UBOOT_BINLOAD := u-boot.img
1202else
1203UBOOT_BINLOAD := u-boot.bin
1204endif
1205
1206OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1207			  --gap-fill=0xff
1208
1209u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1210	$(call if_changed,pad_cat)
1211
1212# PPC4xx needs the SPL at the end of the image, since the reset vector
1213# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1214# and need to introduce a new build target with the full blown U-Boot
1215# at the start padded up to the start of the SPL image. And then concat
1216# the SPL image to the end.
1217
1218OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1219	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1220u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1221	$(call if_changed,pad_cat)
1222
1223# Create a new ELF from a raw binary file.
1224ifndef PLATFORM_ELFENTRY
1225  PLATFORM_ELFENTRY = "_start"
1226endif
1227quiet_cmd_u-boot-elf ?= LD      $@
1228	cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1229	--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1230	-Ttext=$(CONFIG_SYS_TEXT_BASE)
1231u-boot.elf: u-boot.bin
1232	$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1233	$(call if_changed,u-boot-elf)
1234
1235# Rule to link u-boot
1236# May be overridden by arch/$(ARCH)/config.mk
1237quiet_cmd_u-boot__ ?= LD      $@
1238      cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1239      -T u-boot.lds $(u-boot-init)                             \
1240      --start-group $(u-boot-main) --end-group                 \
1241      $(PLATFORM_LIBS) -Map u-boot.map
1242
1243quiet_cmd_smap = GEN     common/system_map.o
1244cmd_smap = \
1245	smap=`$(call SYSTEM_MAP,u-boot) | \
1246		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1247	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1248		-c $(srctree)/common/system_map.c -o common/system_map.o
1249
1250u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1251	$(call if_changed,u-boot__)
1252ifeq ($(CONFIG_KALLSYMS),y)
1253	$(call cmd,smap)
1254	$(call cmd,u-boot__) common/system_map.o
1255endif
1256
1257quiet_cmd_sym ?= SYM     $@
1258      cmd_sym ?= $(OBJDUMP) -t $< > $@
1259u-boot.sym: u-boot FORCE
1260	$(call if_changed,sym)
1261
1262# The actual objects are generated when descending,
1263# make sure no implicit rule kicks in
1264$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1265
1266# Handle descending into subdirectories listed in $(vmlinux-dirs)
1267# Preset locale variables to speed up the build process. Limit locale
1268# tweaks to this spot to avoid wrong language settings when running
1269# make menuconfig etc.
1270# Error messages still appears in the original language
1271
1272PHONY += $(u-boot-dirs)
1273$(u-boot-dirs): prepare scripts
1274	$(Q)$(MAKE) $(build)=$@
1275
1276tools: prepare
1277# The "tools" are needed early
1278$(filter-out tools, $(u-boot-dirs)): tools
1279# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1280# is "yes"), so compile examples after U-Boot is compiled.
1281examples: $(filter-out examples, $(u-boot-dirs))
1282
1283define filechk_uboot.release
1284	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1285endef
1286
1287# Store (new) UBOOTRELEASE string in include/config/uboot.release
1288include/config/uboot.release: include/config/auto.conf FORCE
1289	$(call filechk,uboot.release)
1290
1291
1292# Things we need to do before we recursively start building the kernel
1293# or the modules are listed in "prepare".
1294# A multi level approach is used. prepareN is processed before prepareN-1.
1295# archprepare is used in arch Makefiles and when processed asm symlink,
1296# version.h and scripts_basic is processed / created.
1297
1298# Listed in dependency order
1299PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1300
1301# prepare3 is used to check if we are building in a separate output directory,
1302# and if so do:
1303# 1) Check that make has not been executed in the kernel src $(srctree)
1304prepare3: include/config/uboot.release
1305ifneq ($(KBUILD_SRC),)
1306	@$(kecho) '  Using $(srctree) as source for U-Boot'
1307	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1308		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1309		echo >&2 "  in the '$(srctree)' directory.";\
1310		/bin/false; \
1311	fi;
1312endif
1313
1314# prepare2 creates a makefile if using a separate output directory
1315prepare2: prepare3 outputmakefile
1316
1317prepare1: prepare2 $(version_h) $(timestamp_h) \
1318                   include/config/auto.conf
1319ifeq ($(wildcard $(LDSCRIPT)),)
1320	@echo >&2 "  Could not find linker script."
1321	@/bin/false
1322endif
1323
1324archprepare: prepare1 scripts_basic
1325
1326prepare0: archprepare FORCE
1327	$(Q)$(MAKE) $(build)=.
1328
1329# All the preparing..
1330prepare: prepare0
1331
1332# Generate some files
1333# ---------------------------------------------------------------------------
1334
1335define filechk_version.h
1336	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1337	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1338	echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1339	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1340endef
1341
1342# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1343# The BSD date on the other hand behaves different and would produce errors
1344# with the misused '-d' switch.  Respect that and search a working date with
1345# well known pre- and suffixes for the GNU variant of date.
1346define filechk_timestamp.h
1347	(if test -n "$${SOURCE_DATE_EPOCH}"; then \
1348		SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1349		DATE=""; \
1350		for date in gdate date.gnu date; do \
1351			$${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1352		done; \
1353		if test -n "$${DATE}"; then \
1354			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1355			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1356			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1357			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1358		else \
1359			return 42; \
1360		fi; \
1361	else \
1362		LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1363		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1364		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1365		LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1366	fi)
1367endef
1368
1369$(version_h): include/config/uboot.release FORCE
1370	$(call filechk,version.h)
1371
1372$(timestamp_h): $(srctree)/Makefile FORCE
1373	$(call filechk,timestamp.h)
1374
1375checkbinman: tools
1376	@if ! ( echo 'import libfdt' | ( PYTHONPATH=tools python )); then \
1377		echo >&2; \
1378		echo >&2 '*** binman needs the Python libfdt library.'; \
1379		echo >&2 '*** Either install it on your system, or try:'; \
1380		echo >&2 '***'; \
1381		echo >&2 '*** sudo apt-get install swig libpython-dev'; \
1382		echo >&2 '***'; \
1383		echo >&2 '*** to have U-Boot build its own version.'; \
1384		false; \
1385	fi
1386
1387# ---------------------------------------------------------------------------
1388quiet_cmd_cpp_lds = LDS     $@
1389cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1390		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1391
1392u-boot.lds: $(LDSCRIPT) prepare FORCE
1393	$(call if_changed_dep,cpp_lds)
1394
1395spl/u-boot-spl.bin: spl/u-boot-spl
1396	@:
1397spl/u-boot-spl: tools prepare \
1398		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1399	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1400
1401spl/sunxi-spl.bin: spl/u-boot-spl
1402	@:
1403
1404spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1405	@:
1406
1407spl/u-boot-spl.sfp: spl/u-boot-spl
1408	@:
1409
1410spl/boot.bin: spl/u-boot-spl
1411	@:
1412
1413tpl/u-boot-tpl.bin: tools prepare \
1414		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1415	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1416
1417TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1418
1419FIND := find
1420FINDFLAGS := -L
1421
1422tags ctags:
1423		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1424						-name '*.[chS]' -print`
1425		ln -s ctags tags
1426
1427etags:
1428		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1429						-name '*.[chS]' -print`
1430cscope:
1431		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1432						cscope.files
1433		cscope -b -q -k
1434
1435SYSTEM_MAP = \
1436		$(NM) $1 | \
1437		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1438		LC_ALL=C sort
1439System.map:	u-boot
1440		@$(call SYSTEM_MAP,$<) > $@
1441
1442checkdtc:
1443	@if test $(call dtc-version) -lt 0104; then \
1444		echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1445		false; \
1446	fi
1447
1448#########################################################################
1449
1450# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1451# R_AARCH64_RELATIVE (64-bit).
1452checkarmreloc: u-boot
1453	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1454		grep R_A | sort -u`"; \
1455	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1456		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1457		echo "$< contains unexpected relocations: $$RELOC"; \
1458		false; \
1459	fi
1460
1461env: scripts_basic
1462	$(Q)$(MAKE) $(build)=tools/$@
1463
1464tools-only: scripts_basic $(version_h) $(timestamp_h)
1465	$(Q)$(MAKE) $(build)=tools
1466
1467tools-all: export HOST_TOOLS_ALL=y
1468tools-all: env tools ;
1469
1470cross_tools: export CROSS_BUILD_TOOLS=y
1471cross_tools: tools ;
1472
1473.PHONY : CHANGELOG
1474CHANGELOG:
1475	git log --no-merges U-Boot-1_1_5.. | \
1476	unexpand -a | sed -e 's/\s\s*$$//' > $@
1477
1478#########################################################################
1479
1480###
1481# Cleaning is done on three levels.
1482# make clean     Delete most generated files
1483#                Leave enough to build external modules
1484# make mrproper  Delete the current configuration, and all generated files
1485# make distclean Remove editor backup files, patch leftover files and the like
1486
1487# Directories & files removed with 'make clean'
1488CLEAN_DIRS  += $(MODVERDIR) \
1489	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1490			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1491
1492CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1493	       boot* u-boot* MLO* SPL System.map fit-dtb.blob
1494
1495# Directories & files removed with 'make mrproper'
1496MRPROPER_DIRS  += include/config include/generated spl tpl \
1497		  .tmp_objdiff
1498MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1499		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1500
1501# clean - Delete most, but leave enough to build external modules
1502#
1503clean: rm-dirs  := $(CLEAN_DIRS)
1504clean: rm-files := $(CLEAN_FILES)
1505
1506clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1507
1508clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1509
1510PHONY += $(clean-dirs) clean archclean
1511$(clean-dirs):
1512	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1513
1514# TODO: Do not use *.cfgtmp
1515clean: $(clean-dirs)
1516	$(call cmd,rmdirs)
1517	$(call cmd,rmfiles)
1518	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1519		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1520		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1521		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1522		-o -name '*.symtypes' -o -name 'modules.order' \
1523		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1524		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1525		-o -name '*.gcno' \) -type f -print | xargs rm -f
1526
1527# mrproper - Delete all generated files, including .config
1528#
1529mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1530mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1531mrproper-dirs      := $(addprefix _mrproper_,scripts)
1532
1533PHONY += $(mrproper-dirs) mrproper archmrproper
1534$(mrproper-dirs):
1535	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1536
1537mrproper: clean $(mrproper-dirs)
1538	$(call cmd,rmdirs)
1539	$(call cmd,rmfiles)
1540	@rm -f arch/*/include/asm/arch
1541
1542# distclean
1543#
1544PHONY += distclean
1545
1546distclean: mrproper
1547	@find $(srctree) $(RCS_FIND_IGNORE) \
1548		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1549		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1550		-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1551		-o -name '*.pyc' \) \
1552		-type f -print | xargs rm -f
1553	@rm -f boards.cfg
1554
1555backup:
1556	F=`basename $(srctree)` ; cd .. ; \
1557	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1558
1559help:
1560	@echo  'Cleaning targets:'
1561	@echo  '  clean		  - Remove most generated files but keep the config'
1562	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1563	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1564	@echo  ''
1565	@echo  'Configuration targets:'
1566	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1567	@echo  ''
1568	@echo  'Other generic targets:'
1569	@echo  '  all		  - Build all necessary images depending on configuration'
1570	@echo  '  tests		  - Build U-Boot for sandbox and run tests'
1571	@echo  '* u-boot	  - Build the bare u-boot'
1572	@echo  '  dir/            - Build all files in dir and below'
1573	@echo  '  dir/file.[oisS] - Build specified target only'
1574	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1575	@echo  '                    (requires a recent binutils and recent build (System.map))'
1576	@echo  '  tags/ctags	  - Generate ctags file for editors'
1577	@echo  '  etags		  - Generate etags file for editors'
1578	@echo  '  cscope	  - Generate cscope index'
1579	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
1580	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
1581	@echo  "  cfg		  - Don't build, just create the .cfg files"
1582	@echo  ''
1583	@echo  'Static analysers'
1584	@echo  '  checkstack      - Generate a list of stack hogs'
1585	@echo  ''
1586	@echo  'Documentation targets:'
1587	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1588	@echo  ''
1589	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1590	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1591	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1592	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1593	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1594	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1595	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1596	@echo  '		1: warnings which may be relevant and do not occur too often'
1597	@echo  '		2: warnings which occur quite often but may still be relevant'
1598	@echo  '		3: more obscure warnings, can most likely be ignored'
1599	@echo  '		Multiple levels can be combined with W=12 or W=123'
1600	@echo  ''
1601	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1602	@echo  'For further info see the ./README file'
1603
1604tests:
1605	$(srctree)/test/run
1606
1607# Documentation targets
1608# ---------------------------------------------------------------------------
1609%docs: scripts_basic FORCE
1610	$(Q)$(MAKE) $(build)=scripts build_docproc
1611	$(Q)$(MAKE) $(build)=doc/DocBook $@
1612
1613endif #ifeq ($(config-targets),1)
1614endif #ifeq ($(mixed-targets),1)
1615
1616PHONY += checkstack ubootrelease ubootversion
1617
1618checkstack:
1619	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1620	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1621
1622ubootrelease:
1623	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1624
1625ubootversion:
1626	@echo $(UBOOTVERSION)
1627
1628# Single targets
1629# ---------------------------------------------------------------------------
1630# Single targets are compatible with:
1631# - build with mixed source and output
1632# - build with separate output dir 'make O=...'
1633# - external modules
1634#
1635#  target-dir => where to store outputfile
1636#  build-dir  => directory in kernel source tree to use
1637
1638ifeq ($(KBUILD_EXTMOD),)
1639        build-dir  = $(patsubst %/,%,$(dir $@))
1640        target-dir = $(dir $@)
1641else
1642        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1643        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1644        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1645endif
1646
1647%.s: %.c prepare scripts FORCE
1648	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1649%.i: %.c prepare scripts FORCE
1650	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1651%.o: %.c prepare scripts FORCE
1652	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1653%.lst: %.c prepare scripts FORCE
1654	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1655%.s: %.S prepare scripts FORCE
1656	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1657%.o: %.S prepare scripts FORCE
1658	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1659%.symtypes: %.c prepare scripts FORCE
1660	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1661
1662# Modules
1663/: prepare scripts FORCE
1664	$(cmd_crmodverdir)
1665	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1666	$(build)=$(build-dir)
1667%/: prepare scripts FORCE
1668	$(cmd_crmodverdir)
1669	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1670	$(build)=$(build-dir)
1671%.ko: prepare scripts FORCE
1672	$(cmd_crmodverdir)
1673	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1674	$(build)=$(build-dir) $(@:.ko=.o)
1675	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1676
1677# FIXME Should go into a make.lib or something
1678# ===========================================================================
1679
1680quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1681      cmd_rmdirs = rm -rf $(rm-dirs)
1682
1683quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1684      cmd_rmfiles = rm -f $(rm-files)
1685
1686# read all saved command lines
1687
1688targets := $(wildcard $(sort $(targets)))
1689cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1690
1691ifneq ($(cmd_files),)
1692  $(cmd_files): ;	# Do not try to update included dependency files
1693  include $(cmd_files)
1694endif
1695
1696endif	# skip-makefile
1697
1698PHONY += FORCE
1699FORCE:
1700
1701# Declare the contents of the .PHONY variable as phony.  We keep that
1702# information in a variable so we can use it in if_changed and friends.
1703.PHONY: $(PHONY)
1704