xref: /openbmc/u-boot/Makefile (revision 445277b9)
1#
2# SPDX-License-Identifier:	GPL-2.0+
3#
4
5VERSION = 2018
6PATCHLEVEL = 01
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		?= $(objtree)/scripts/dtc/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_CFLAGS	+= -fshort-wchar
364KBUILD_AFLAGS   := -D__ASSEMBLY__
365
366# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
367UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
368UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
369
370export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
371export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
372export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
373export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
374export MAKE AWK PERL PYTHON
375export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
376
377export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
378export KBUILD_CFLAGS KBUILD_AFLAGS
379
380# When compiling out-of-tree modules, put MODVERDIR in the module
381# tree rather than in the kernel tree. The kernel tree might
382# even be read-only.
383export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
384
385# Files to ignore in find ... statements
386
387export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
388			  -name CVS -o -name .pc -o -name .hg -o -name .git \) \
389			  -prune -o
390export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
391			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
392
393# ===========================================================================
394# Rules shared between *config targets and build targets
395
396# Basic helpers built in scripts/
397PHONY += scripts_basic
398scripts_basic:
399	$(Q)$(MAKE) $(build)=scripts/basic
400	$(Q)rm -f .tmp_quiet_recordmcount
401
402# To avoid any implicit rule to kick in, define an empty command.
403scripts/basic/%: scripts_basic ;
404
405PHONY += outputmakefile
406# outputmakefile generates a Makefile in the output directory, if using a
407# separate output directory. This allows convenient use of make in the
408# output directory.
409outputmakefile:
410ifneq ($(KBUILD_SRC),)
411	$(Q)ln -fsn $(srctree) source
412	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
413	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
414endif
415
416# To make sure we do not include .config for any of the *config targets
417# catch them early, and hand them over to scripts/kconfig/Makefile
418# It is allowed to specify more targets when calling make, including
419# mixing *config targets and build targets.
420# For example 'make oldconfig all'.
421# Detect when mixed targets is specified, and make a second invocation
422# of make so .config is not included in this case either (for *config).
423
424version_h := include/generated/version_autogenerated.h
425timestamp_h := include/generated/timestamp_autogenerated.h
426
427no-dot-config-targets := clean clobber mrproper distclean \
428			 help %docs check% coccicheck \
429			 ubootversion backup tests
430
431config-targets := 0
432mixed-targets  := 0
433dot-config     := 1
434
435ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
436	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
437		dot-config := 0
438	endif
439endif
440
441ifeq ($(KBUILD_EXTMOD),)
442        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
443                config-targets := 1
444                ifneq ($(words $(MAKECMDGOALS)),1)
445                        mixed-targets := 1
446                endif
447        endif
448endif
449
450ifeq ($(mixed-targets),1)
451# ===========================================================================
452# We're called with mixed targets (*config and build targets).
453# Handle them one by one.
454
455PHONY += $(MAKECMDGOALS) __build_one_by_one
456
457$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
458	@:
459
460__build_one_by_one:
461	$(Q)set -e; \
462	for i in $(MAKECMDGOALS); do \
463		$(MAKE) -f $(srctree)/Makefile $$i; \
464	done
465
466else
467ifeq ($(config-targets),1)
468# ===========================================================================
469# *config targets only - make sure prerequisites are updated, and descend
470# in scripts/kconfig to make the *config target
471
472KBUILD_DEFCONFIG := sandbox_defconfig
473export KBUILD_DEFCONFIG KBUILD_KCONFIG
474
475config: scripts_basic outputmakefile FORCE
476	$(Q)$(MAKE) $(build)=scripts/kconfig $@
477
478%config: scripts_basic outputmakefile FORCE
479	$(Q)$(MAKE) $(build)=scripts/kconfig $@
480
481else
482# ===========================================================================
483# Build targets only - this includes vmlinux, arch specific targets, clean
484# targets and others. In general all targets except *config targets.
485
486# Additional helpers built in scripts/
487# Carefully list dependencies so we do not try to build scripts twice
488# in parallel
489PHONY += scripts
490scripts: scripts_basic include/config/auto.conf
491	$(Q)$(MAKE) $(build)=$(@)
492
493ifeq ($(dot-config),1)
494# Read in config
495-include include/config/auto.conf
496
497# Read in dependencies to all Kconfig* files, make sure to run
498# oldconfig if changes are detected.
499-include include/config/auto.conf.cmd
500
501# To avoid any implicit rule to kick in, define an empty command
502$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
503
504# If .config is newer than include/config/auto.conf, someone tinkered
505# with it and forgot to run make oldconfig.
506# if auto.conf.cmd is missing then we are probably in a cleaned tree so
507# we execute the config step to be sure to catch updated Kconfig files
508include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
509	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
510	@# If the following part fails, include/config/auto.conf should be
511	@# deleted so "make silentoldconfig" will be re-run on the next build.
512	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
513		{ rm -f include/config/auto.conf; false; }
514	@# include/config.h has been updated after "make silentoldconfig".
515	@# We need to touch include/config/auto.conf so it gets newer
516	@# than include/config.h.
517	@# Otherwise, 'make silentoldconfig' would be invoked twice.
518	$(Q)touch include/config/auto.conf
519
520u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
521	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
522
523-include include/autoconf.mk
524-include include/autoconf.mk.dep
525
526# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
527# is up-to-date. When we switch to a different board configuration, old CONFIG
528# macros are still remaining in include/config/auto.conf. Without the following
529# gimmick, wrong config.mk would be included leading nasty warnings/errors.
530ifneq ($(wildcard $(KCONFIG_CONFIG)),)
531ifneq ($(wildcard include/config/auto.conf),)
532autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
533						include/config/auto.conf)
534ifeq ($(autoconf_is_old),)
535include config.mk
536include arch/$(ARCH)/Makefile
537endif
538endif
539endif
540
541# These are set by the arch-specific config.mk. Make sure they are exported
542# so they can be used when building an EFI application.
543export EFI_LDS		# Filename of EFI link script in arch/$(ARCH)/lib
544export EFI_CRT0		# Filename of EFI CRT0 in arch/$(ARCH)/lib
545export EFI_RELOC	# Filename of EFU relocation code in arch/$(ARCH)/lib
546export CFLAGS_EFI	# Compiler flags to add when building EFI app
547export CFLAGS_NON_EFI	# Compiler flags to remove when building EFI app
548export EFI_TARGET	# binutils target if EFI is natively supported
549
550# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
551# that (or fail if absent).  Otherwise, search for a linker script in a
552# standard location.
553
554ifndef LDSCRIPT
555	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
556	ifdef CONFIG_SYS_LDSCRIPT
557		# need to strip off double quotes
558		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
559	endif
560endif
561
562# If there is no specified link script, we look in a number of places for it
563ifndef LDSCRIPT
564	ifeq ($(wildcard $(LDSCRIPT)),)
565		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
566	endif
567	ifeq ($(wildcard $(LDSCRIPT)),)
568		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
569	endif
570	ifeq ($(wildcard $(LDSCRIPT)),)
571		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
572	endif
573endif
574
575else
576# Dummy target needed, because used as prerequisite
577include/config/auto.conf: ;
578endif # $(dot-config)
579
580#
581# Xtensa linker script cannot be preprocessed with -ansi because of
582# preprocessor operations on strings that don't make C identifiers.
583#
584ifeq ($(CONFIG_XTENSA),)
585LDPPFLAGS	+= -ansi
586endif
587
588ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
589KBUILD_CFLAGS	+= -Os
590else
591KBUILD_CFLAGS	+= -O2
592endif
593
594KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
595KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
596
597KBUILD_CFLAGS	+= -g
598# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
599# option to the assembler.
600KBUILD_AFLAGS	+= -g
601
602# Report stack usage if supported
603ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
604	KBUILD_CFLAGS += -fstack-usage
605endif
606
607KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
608
609# turn jbsr into jsr for m68k
610ifeq ($(ARCH),m68k)
611ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
612KBUILD_AFLAGS += -Wa,-gstabs,-S
613endif
614endif
615
616# Prohibit date/time macros, which would make the build non-deterministic
617KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
618
619include scripts/Makefile.extrawarn
620
621# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
622KBUILD_CPPFLAGS += $(KCPPFLAGS)
623KBUILD_AFLAGS += $(KAFLAGS)
624KBUILD_CFLAGS += $(KCFLAGS)
625
626# Use UBOOTINCLUDE when you must reference the include/ directory.
627# Needed to be compatible with the O= option
628UBOOTINCLUDE    := \
629		-Iinclude \
630		$(if $(KBUILD_SRC), -I$(srctree)/include) \
631		$(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
632			$(if $(CONFIG_HAS_THUMB2),, \
633				-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
634		-I$(srctree)/arch/$(ARCH)/include \
635		-include $(srctree)/include/linux/kconfig.h
636
637NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
638CHECKFLAGS     += $(NOSTDINC_FLAGS)
639
640# FIX ME
641cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
642							$(NOSTDINC_FLAGS)
643c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
644
645#########################################################################
646# U-Boot objects....order is important (i.e. start must be first)
647
648HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
649
650libs-y += lib/
651libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
652libs-$(CONFIG_OF_EMBED) += dts/
653libs-y += fs/
654libs-y += net/
655libs-y += disk/
656libs-y += drivers/
657libs-y += drivers/dma/
658libs-y += drivers/gpio/
659libs-y += drivers/i2c/
660libs-y += drivers/mtd/
661libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
662libs-y += drivers/mtd/onenand/
663libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
664libs-y += drivers/mtd/spi/
665libs-y += drivers/net/
666libs-y += drivers/net/phy/
667libs-y += drivers/pci/
668libs-y += drivers/power/ \
669	drivers/power/domain/ \
670	drivers/power/fuel_gauge/ \
671	drivers/power/mfd/ \
672	drivers/power/pmic/ \
673	drivers/power/battery/ \
674	drivers/power/regulator/
675libs-y += drivers/spi/
676libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
677libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
678libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
679libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
680libs-y += drivers/serial/
681libs-y += drivers/usb/dwc3/
682libs-y += drivers/usb/common/
683libs-y += drivers/usb/emul/
684libs-y += drivers/usb/eth/
685libs-y += drivers/usb/gadget/
686libs-y += drivers/usb/gadget/udc/
687libs-y += drivers/usb/host/
688libs-y += drivers/usb/musb/
689libs-y += drivers/usb/musb-new/
690libs-y += drivers/usb/phy/
691libs-y += drivers/usb/ulpi/
692libs-y += cmd/
693libs-y += common/
694libs-y += env/
695libs-$(CONFIG_API) += api/
696libs-$(CONFIG_HAS_POST) += post/
697libs-y += test/
698libs-y += test/dm/
699libs-$(CONFIG_UT_ENV) += test/env/
700libs-$(CONFIG_UT_OVERLAY) += test/overlay/
701
702libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
703
704libs-y := $(sort $(libs-y))
705
706u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
707
708u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
709
710libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
711
712u-boot-init := $(head-y)
713u-boot-main := $(libs-y)
714
715
716# Add GCC lib
717ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
718PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
719else
720PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
721endif
722PLATFORM_LIBS += $(PLATFORM_LIBGCC)
723export PLATFORM_LIBS
724export PLATFORM_LIBGCC
725
726# Special flags for CPP when processing the linker script.
727# Pass the version down so we can handle backwards compatibility
728# on the fly.
729LDPPFLAGS += \
730	-include $(srctree)/include/u-boot/u-boot.lds.h \
731	-DCPUDIR=$(CPUDIR) \
732	$(shell $(LD) --version | \
733	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
734
735#########################################################################
736#########################################################################
737
738ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
739BOARD_SIZE_CHECK = \
740	@actual=`wc -c $@ | awk '{print $$1}'`; \
741	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
742	if test $$actual -gt $$limit; then \
743		echo "$@ exceeds file size limit:" >&2 ; \
744		echo "  limit:  $$limit bytes" >&2 ; \
745		echo "  actual: $$actual bytes" >&2 ; \
746		echo "  excess: $$((actual - limit)) bytes" >&2; \
747		exit 1; \
748	fi
749else
750BOARD_SIZE_CHECK =
751endif
752
753# Statically apply RELA-style relocations (currently arm64 only)
754# This is useful for arm64 where static relocation needs to be performed on
755# the raw binary, but certain simulators only accept an ELF file (but don't
756# do the relocation).
757ifneq ($(CONFIG_STATIC_RELA),)
758# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
759DO_STATIC_RELA = \
760	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
761	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
762	tools/relocate-rela $(2) $(3) $$start $$end
763else
764DO_STATIC_RELA =
765endif
766
767# Always append ALL so that arch config.mk's can add custom ones
768ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
769
770ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
771ifeq ($(CONFIG_SPL_FSL_PBL),y)
772ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
773else
774ifneq ($(CONFIG_SECURE_BOOT), y)
775# For Secure Boot The Image needs to be signed and Header must also
776# be included. So The image has to be built explicitly
777ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
778endif
779endif
780ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
781ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
782ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
783else
784ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
785endif
786ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
787ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
788ifeq ($(CONFIG_SPL_FRAMEWORK),y)
789ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
790endif
791ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
792ifneq ($(CONFIG_SPL_TARGET),)
793ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
794endif
795ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
796ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
797ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
798
799ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
800ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
801endif
802
803# enable combined SPL/u-boot/dtb rules for tegra
804ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
805ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
806ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
807endif
808
809# Add optional build target if defined in board/cpu/soc headers
810ifneq ($(CONFIG_BUILD_TARGET),)
811ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
812endif
813
814ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
815ALL-y += init_sp_bss_offset_check
816endif
817
818LDFLAGS_u-boot += $(LDFLAGS_FINAL)
819
820# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
821LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
822
823ifneq ($(CONFIG_SYS_TEXT_BASE),)
824LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
825endif
826
827# Normally we fill empty space with 0xff
828quiet_cmd_objcopy = OBJCOPY $@
829cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
830	$(OBJCOPYFLAGS_$(@F)) $< $@
831
832# Provide a version which does not do this, for use by EFI
833quiet_cmd_zobjcopy = OBJCOPY $@
834cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
835
836quiet_cmd_efipayload = OBJCOPY $@
837cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
838
839MKIMAGEOUTPUT ?= /dev/null
840
841quiet_cmd_mkimage = MKIMAGE $@
842cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
843	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
844
845quiet_cmd_mkfitimage = MKIMAGE $@
846cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
847	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
848
849quiet_cmd_cat = CAT     $@
850cmd_cat = cat $(filter-out $(PHONY), $^) > $@
851
852append = cat $(filter-out $< $(PHONY), $^) >> $@
853
854quiet_cmd_pad_cat = CAT     $@
855cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
856
857cfg: u-boot.cfg
858
859quiet_cmd_cfgcheck = CFGCHK  $2
860cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
861		$(srctree)/scripts/config_whitelist.txt $(srctree)
862
863all:		$(ALL-y) cfg
864ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
865	@echo "===================== WARNING ======================"
866	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
867	@echo "(possibly in a subsequent patch in your series)"
868	@echo "before sending patches to the mailing list."
869	@echo "===================================================="
870endif
871	@# Check that this build does not use CONFIG options that we do not
872	@# know about unless they are in Kconfig. All the existing CONFIG
873	@# options are whitelisted, so new ones should not be added.
874	$(call cmd,cfgcheck,u-boot.cfg)
875
876PHONY += dtbs
877dtbs: dts/dt.dtb
878	@:
879dts/dt.dtb: u-boot
880	$(Q)$(MAKE) $(build)=dts dtbs
881
882quiet_cmd_copy = COPY    $@
883      cmd_copy = cp $< $@
884
885ifeq ($(CONFIG_MULTI_DTB_FIT),y)
886
887fit-dtb.blob: dts/dt.dtb FORCE
888	$(call if_changed,mkimage)
889
890MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
891	-a 0 -e 0 -E \
892	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
893
894u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
895	$(call if_changed,cat)
896
897u-boot.bin: u-boot-fit-dtb.bin FORCE
898	$(call if_changed,copy)
899else ifeq ($(CONFIG_OF_SEPARATE),y)
900u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
901	$(call if_changed,cat)
902
903u-boot.bin: u-boot-dtb.bin FORCE
904	$(call if_changed,copy)
905else
906u-boot.bin: u-boot-nodtb.bin FORCE
907	$(call if_changed,copy)
908endif
909
910%.imx: %.bin
911	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
912
913%.vyb: %.imx
914	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
915
916quiet_cmd_copy = COPY    $@
917      cmd_copy = cp $< $@
918
919u-boot.dtb: dts/dt.dtb
920	$(call cmd,copy)
921
922OBJCOPYFLAGS_u-boot.hex := -O ihex
923
924OBJCOPYFLAGS_u-boot.srec := -O srec
925
926u-boot.hex u-boot.srec: u-boot FORCE
927	$(call if_changed,objcopy)
928
929OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
930		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
931
932binary_size_check: u-boot-nodtb.bin FORCE
933	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
934	map_size=$(shell cat u-boot.map | \
935		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
936		| sed 's/0X//g' \
937		| bc); \
938	if [ "" != "$$map_size" ]; then \
939		if test $$map_size -ne $$file_size; then \
940			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
941			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
942			exit 1; \
943		fi \
944	fi
945
946ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
947ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
948subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
949else
950subtract_sys_malloc_f_len = true
951endif
952# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
953# so low that the DTB could probably use 90%+ of the available space, for
954# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
955# safe for now and tweak this later if space becomes tight.
956# A rejected alternative would be to check that some absolute minimum stack
957# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
958# deliberately build-specific, to take account of build-to-build stack usage
959# differences due to different feature sets, there is no common absolute value
960# to check against.
961init_sp_bss_offset_check: u-boot.dtb FORCE
962	@dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
963	space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
964	$(subtract_sys_malloc_f_len) ; \
965	quarter_space=$$(($${space} / 4)) ; \
966	if [ $${dtb_size} -gt $${quarter_space} ]; then \
967		echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
968		echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
969		exit 1 ; \
970	fi
971endif
972
973u-boot-nodtb.bin: u-boot FORCE
974	$(call if_changed,objcopy)
975	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
976	$(BOARD_SIZE_CHECK)
977
978u-boot.ldr:	u-boot
979		$(CREATE_LDR_ENV)
980		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
981		$(BOARD_SIZE_CHECK)
982
983# binman
984# ---------------------------------------------------------------------------
985quiet_cmd_binman = BINMAN  $@
986cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
987		-I . -I $(srctree)/board/$(BOARDDIR) $<
988
989OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
990
991OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
992
993u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
994	$(call if_changed,objcopy)
995
996#
997# U-Boot entry point, needed for booting of full-blown U-Boot
998# from the SPL U-Boot version.
999#
1000ifndef CONFIG_SYS_UBOOT_START
1001CONFIG_SYS_UBOOT_START := 0
1002endif
1003
1004# Create a file containing the configuration options the image was built with
1005quiet_cmd_cpp_cfg = CFG     $@
1006cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1007	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
1008
1009# Boards with more complex image requirments can provide an .its source file
1010# or a generator script
1011ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1012U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1013else
1014ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1015U_BOOT_ITS := u-boot.its
1016$(U_BOOT_ITS): FORCE
1017	$(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1018	$(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1019endif
1020endif
1021
1022ifdef CONFIG_SPL_LOAD_FIT
1023MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1024	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1025	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1026	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1027else
1028MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1029	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1030	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1031MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1032	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1033	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1034u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1035CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1036endif
1037
1038MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1039
1040MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1041	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1042
1043MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1044	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1045	$(if $(KEYDIR),-k $(KEYDIR))
1046
1047MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1048		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1049
1050u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1051		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1052	$(call if_changed,mkimage)
1053
1054u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1055	$(call if_changed,mkfitimage)
1056
1057u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1058	$(call if_changed,mkimage)
1059
1060u-boot.sha1:	u-boot.bin
1061		tools/ubsha1 u-boot.bin
1062
1063u-boot.dis:	u-boot
1064		$(OBJDUMP) -d $< > $@
1065
1066ifdef CONFIG_TPL
1067SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1068else
1069SPL_PAYLOAD := u-boot.bin
1070endif
1071
1072OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1073				   --pad-to=$(CONFIG_SPL_PAD_TO)
1074u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1075	$(call if_changed,pad_cat)
1076
1077MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1078
1079lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1080	$(call if_changed,mkimage)
1081
1082OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1083
1084lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1085	$(call if_changed,objcopy)
1086
1087OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1088
1089lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1090	$(call if_changed,objcopy)
1091
1092lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1093	$(call if_changed,cat)
1094
1095CLEAN_FILES += lpc32xx-*
1096
1097OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1098				   --pad-to=$(CONFIG_TPL_PAD_TO)
1099tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1100	$(call if_changed,pad_cat)
1101
1102SPL: spl/u-boot-spl.bin FORCE
1103	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1104
1105u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1106	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1107
1108MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1109
1110u-boot.ubl: u-boot-with-spl.bin FORCE
1111	$(call if_changed,mkimage)
1112
1113MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1114	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1115	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1116spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1117	$(call if_changed,mkimage)
1118
1119OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1120u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1121	$(call if_changed,pad_cat)
1122
1123u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1124	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1125u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1126	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1127
1128# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1129# Both images are created using mkimage (crc etc), so that the ROM
1130# bootloader can check its integrity. Padding needs to be done to the
1131# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1132# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1133# The resulting image containing both U-Boot images is called u-boot.spr
1134MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1135	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1136spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1137	$(call if_changed,mkimage)
1138
1139OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1140			  --gap-fill=0xff
1141u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1142	$(call if_changed,pad_cat)
1143
1144ifneq ($(CONFIG_ARCH_SOCFPGA),)
1145quiet_cmd_socboot = SOCBOOT $@
1146cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1147			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1148			u-boot.img > $@ || rm -f $@
1149u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1150	$(call if_changed,socboot)
1151endif
1152
1153# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1154# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1155# the middle. This is handled by binman based on an image description in the
1156# board's device tree.
1157ifneq ($(CONFIG_X86_RESET_VECTOR),)
1158rom: u-boot.rom FORCE
1159
1160refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1161	$(call if_changed,copy)
1162
1163quiet_cmd_ldr = LD      $@
1164cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1165	       $(filter-out FORCE,$^) -o $@
1166
1167u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1168		$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1169		$(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1170	$(call if_changed,binman)
1171
1172OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1173u-boot-x86-16bit.bin: u-boot FORCE
1174	$(call if_changed,objcopy)
1175endif
1176
1177ifneq ($(CONFIG_ARCH_SUNXI),)
1178u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1179	$(call if_changed,binman)
1180endif
1181
1182ifneq ($(CONFIG_TEGRA),)
1183ifneq ($(CONFIG_BINMAN),)
1184u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \
1185		spl/u-boot-spl u-boot.bin FORCE
1186	$(call if_changed,binman)
1187else
1188OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1189u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1190	$(call if_changed,pad_cat)
1191
1192OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1193u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1194	$(call if_changed,pad_cat)
1195
1196u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1197	$(call if_changed,copy)
1198endif  # binman
1199endif
1200
1201OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1202u-boot-app.efi: u-boot FORCE
1203	$(call if_changed,zobjcopy)
1204
1205u-boot.bin.o: u-boot.bin FORCE
1206	$(call if_changed,efipayload)
1207
1208u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1209	$(call if_changed_dep,cpp_lds)
1210
1211# Rule to link the EFI payload which contains a stub and a U-Boot binary
1212quiet_cmd_u-boot_payload ?= LD      $@
1213      cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1214      -T u-boot-payload.lds arch/x86/cpu/call32.o \
1215      lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1216      $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1217
1218u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1219	$(call if_changed,u-boot_payload)
1220
1221OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1222u-boot-payload.efi: u-boot-payload FORCE
1223	$(call if_changed,zobjcopy)
1224
1225u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1226	$(call if_changed,cat)
1227
1228#Add a target to create boot binary having SPL binary in PBI format
1229#concatenated with u-boot binary. It is need by PowerPC SoC having
1230#internal SRAM <= 512KB.
1231MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1232		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1233		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1234
1235spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1236	$(call if_changed,mkimage)
1237
1238ifeq ($(ARCH),arm)
1239UBOOT_BINLOAD := u-boot.img
1240else
1241UBOOT_BINLOAD := u-boot.bin
1242endif
1243
1244OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1245			  --gap-fill=0xff
1246
1247u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1248	$(call if_changed,pad_cat)
1249
1250# PPC4xx needs the SPL at the end of the image, since the reset vector
1251# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1252# and need to introduce a new build target with the full blown U-Boot
1253# at the start padded up to the start of the SPL image. And then concat
1254# the SPL image to the end.
1255
1256OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1257	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1258u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1259	$(call if_changed,pad_cat)
1260
1261# Create a new ELF from a raw binary file.
1262ifndef PLATFORM_ELFENTRY
1263  PLATFORM_ELFENTRY = "_start"
1264endif
1265quiet_cmd_u-boot-elf ?= LD      $@
1266	cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1267	--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1268	-Ttext=$(CONFIG_SYS_TEXT_BASE)
1269u-boot.elf: u-boot.bin
1270	$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1271	$(call if_changed,u-boot-elf)
1272
1273ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1274
1275# Rule to link u-boot
1276# May be overridden by arch/$(ARCH)/config.mk
1277quiet_cmd_u-boot__ ?= LD      $@
1278      cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1279      -T u-boot.lds $(u-boot-init)                             \
1280      --start-group $(u-boot-main) --end-group                 \
1281      $(PLATFORM_LIBS) -Map u-boot.map;                        \
1282      $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1283
1284quiet_cmd_smap = GEN     common/system_map.o
1285cmd_smap = \
1286	smap=`$(call SYSTEM_MAP,u-boot) | \
1287		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1288	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1289		-c $(srctree)/common/system_map.c -o common/system_map.o
1290
1291u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1292	+$(call if_changed,u-boot__)
1293ifeq ($(CONFIG_KALLSYMS),y)
1294	$(call cmd,smap)
1295	$(call cmd,u-boot__) common/system_map.o
1296endif
1297
1298ifeq ($(CONFIG_RISCV),y)
1299	@tools/prelink-riscv $@ 0
1300endif
1301
1302quiet_cmd_sym ?= SYM     $@
1303      cmd_sym ?= $(OBJDUMP) -t $< > $@
1304u-boot.sym: u-boot FORCE
1305	$(call if_changed,sym)
1306
1307# The actual objects are generated when descending,
1308# make sure no implicit rule kicks in
1309$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1310
1311# Handle descending into subdirectories listed in $(vmlinux-dirs)
1312# Preset locale variables to speed up the build process. Limit locale
1313# tweaks to this spot to avoid wrong language settings when running
1314# make menuconfig etc.
1315# Error messages still appears in the original language
1316
1317PHONY += $(u-boot-dirs)
1318$(u-boot-dirs): prepare scripts
1319	$(Q)$(MAKE) $(build)=$@
1320
1321tools: prepare
1322# The "tools" are needed early
1323$(filter-out tools, $(u-boot-dirs)): tools
1324# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1325# is "yes"), so compile examples after U-Boot is compiled.
1326examples: $(filter-out examples, $(u-boot-dirs))
1327
1328define filechk_uboot.release
1329	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1330endef
1331
1332# Store (new) UBOOTRELEASE string in include/config/uboot.release
1333include/config/uboot.release: include/config/auto.conf FORCE
1334	$(call filechk,uboot.release)
1335
1336
1337# Things we need to do before we recursively start building the kernel
1338# or the modules are listed in "prepare".
1339# A multi level approach is used. prepareN is processed before prepareN-1.
1340# archprepare is used in arch Makefiles and when processed asm symlink,
1341# version.h and scripts_basic is processed / created.
1342
1343# Listed in dependency order
1344PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1345
1346# prepare3 is used to check if we are building in a separate output directory,
1347# and if so do:
1348# 1) Check that make has not been executed in the kernel src $(srctree)
1349prepare3: include/config/uboot.release
1350ifneq ($(KBUILD_SRC),)
1351	@$(kecho) '  Using $(srctree) as source for U-Boot'
1352	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1353		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1354		echo >&2 "  in the '$(srctree)' directory.";\
1355		/bin/false; \
1356	fi;
1357endif
1358
1359# prepare2 creates a makefile if using a separate output directory
1360prepare2: prepare3 outputmakefile
1361
1362prepare1: prepare2 $(version_h) $(timestamp_h) \
1363                   include/config/auto.conf
1364ifeq ($(wildcard $(LDSCRIPT)),)
1365	@echo >&2 "  Could not find linker script."
1366	@/bin/false
1367endif
1368
1369archprepare: prepare1 scripts_basic
1370
1371prepare0: archprepare FORCE
1372	$(Q)$(MAKE) $(build)=.
1373
1374# All the preparing..
1375prepare: prepare0
1376
1377# Generate some files
1378# ---------------------------------------------------------------------------
1379
1380define filechk_version.h
1381	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1382	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1383	echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1384	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1385endef
1386
1387# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1388# The BSD date on the other hand behaves different and would produce errors
1389# with the misused '-d' switch.  Respect that and search a working date with
1390# well known pre- and suffixes for the GNU variant of date.
1391define filechk_timestamp.h
1392	(if test -n "$${SOURCE_DATE_EPOCH}"; then \
1393		SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1394		DATE=""; \
1395		for date in gdate date.gnu date; do \
1396			$${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1397		done; \
1398		if test -n "$${DATE}"; then \
1399			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1400			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1401			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1402			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1403			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1404		else \
1405			return 42; \
1406		fi; \
1407	else \
1408		LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1409		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1410		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1411		LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1412		LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1413	fi)
1414endef
1415
1416$(version_h): include/config/uboot.release FORCE
1417	$(call filechk,version.h)
1418
1419$(timestamp_h): $(srctree)/Makefile FORCE
1420	$(call filechk,timestamp.h)
1421
1422# ---------------------------------------------------------------------------
1423quiet_cmd_cpp_lds = LDS     $@
1424cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1425		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1426
1427u-boot.lds: $(LDSCRIPT) prepare FORCE
1428	$(call if_changed_dep,cpp_lds)
1429
1430spl/u-boot-spl.bin: spl/u-boot-spl
1431	@:
1432spl/u-boot-spl: tools prepare \
1433		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1434		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1435	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1436
1437spl/sunxi-spl.bin: spl/u-boot-spl
1438	@:
1439
1440spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1441	@:
1442
1443spl/u-boot-spl.sfp: spl/u-boot-spl
1444	@:
1445
1446spl/boot.bin: spl/u-boot-spl
1447	@:
1448
1449tpl/u-boot-tpl.bin: tools prepare \
1450		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1451	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1452
1453TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1454
1455FIND := find
1456FINDFLAGS := -L
1457
1458tags ctags:
1459		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1460						-name '*.[chS]' -print`
1461		ln -s ctags tags
1462
1463etags:
1464		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1465						-name '*.[chS]' -print`
1466cscope:
1467		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1468						cscope.files
1469		cscope -b -q -k
1470
1471SYSTEM_MAP = \
1472		$(NM) $1 | \
1473		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1474		LC_ALL=C sort
1475System.map:	u-boot
1476		@$(call SYSTEM_MAP,$<) > $@
1477
1478#########################################################################
1479
1480# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1481# R_AARCH64_RELATIVE (64-bit).
1482checkarmreloc: u-boot
1483	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1484		grep R_A | sort -u`"; \
1485	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1486		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1487		echo "$< contains unexpected relocations: $$RELOC"; \
1488		false; \
1489	fi
1490
1491envtools: scripts_basic $(version_h) $(timestamp_h)
1492	$(Q)$(MAKE) $(build)=tools/env
1493
1494tools-only: scripts_basic $(version_h) $(timestamp_h)
1495	$(Q)$(MAKE) $(build)=tools
1496
1497tools-all: export HOST_TOOLS_ALL=y
1498tools-all: envtools tools ;
1499
1500cross_tools: export CROSS_BUILD_TOOLS=y
1501cross_tools: tools ;
1502
1503.PHONY : CHANGELOG
1504CHANGELOG:
1505	git log --no-merges U-Boot-1_1_5.. | \
1506	unexpand -a | sed -e 's/\s\s*$$//' > $@
1507
1508#########################################################################
1509
1510###
1511# Cleaning is done on three levels.
1512# make clean     Delete most generated files
1513#                Leave enough to build external modules
1514# make mrproper  Delete the current configuration, and all generated files
1515# make distclean Remove editor backup files, patch leftover files and the like
1516
1517# Directories & files removed with 'make clean'
1518CLEAN_DIRS  += $(MODVERDIR) \
1519	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1520			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1521
1522CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1523	       boot* u-boot* MLO* SPL System.map fit-dtb.blob
1524
1525# Directories & files removed with 'make mrproper'
1526MRPROPER_DIRS  += include/config include/generated spl tpl \
1527		  .tmp_objdiff
1528MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1529		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1530
1531# clean - Delete most, but leave enough to build external modules
1532#
1533clean: rm-dirs  := $(CLEAN_DIRS)
1534clean: rm-files := $(CLEAN_FILES)
1535
1536clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1537
1538clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1539
1540PHONY += $(clean-dirs) clean archclean
1541$(clean-dirs):
1542	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1543
1544# TODO: Do not use *.cfgtmp
1545clean: $(clean-dirs)
1546	$(call cmd,rmdirs)
1547	$(call cmd,rmfiles)
1548	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1549		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1550		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1551		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1552		-o -name '*.symtypes' -o -name 'modules.order' \
1553		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1554		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1555		-o -name '*.gcno' \) -type f -print | xargs rm -f
1556
1557# mrproper - Delete all generated files, including .config
1558#
1559mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1560mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1561mrproper-dirs      := $(addprefix _mrproper_,scripts)
1562
1563PHONY += $(mrproper-dirs) mrproper archmrproper
1564$(mrproper-dirs):
1565	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1566
1567mrproper: clean $(mrproper-dirs)
1568	$(call cmd,rmdirs)
1569	$(call cmd,rmfiles)
1570	@rm -f arch/*/include/asm/arch
1571
1572# distclean
1573#
1574PHONY += distclean
1575
1576distclean: mrproper
1577	@find $(srctree) $(RCS_FIND_IGNORE) \
1578		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1579		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1580		-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1581		-o -name '*.pyc' \) \
1582		-type f -print | xargs rm -f
1583	@rm -f boards.cfg
1584
1585backup:
1586	F=`basename $(srctree)` ; cd .. ; \
1587	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1588
1589help:
1590	@echo  'Cleaning targets:'
1591	@echo  '  clean		  - Remove most generated files but keep the config'
1592	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1593	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1594	@echo  ''
1595	@echo  'Configuration targets:'
1596	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1597	@echo  ''
1598	@echo  'Other generic targets:'
1599	@echo  '  all		  - Build all necessary images depending on configuration'
1600	@echo  '  tests		  - Build U-Boot for sandbox and run tests'
1601	@echo  '* u-boot	  - Build the bare u-boot'
1602	@echo  '  dir/            - Build all files in dir and below'
1603	@echo  '  dir/file.[oisS] - Build specified target only'
1604	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1605	@echo  '                    (requires a recent binutils and recent build (System.map))'
1606	@echo  '  tags/ctags	  - Generate ctags file for editors'
1607	@echo  '  etags		  - Generate etags file for editors'
1608	@echo  '  cscope	  - Generate cscope index'
1609	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
1610	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
1611	@echo  "  cfg		  - Don't build, just create the .cfg files"
1612	@echo  "  envtools	  - Build only the target-side environment tools"
1613	@echo  ''
1614	@echo  'Static analysers'
1615	@echo  '  checkstack      - Generate a list of stack hogs'
1616	@echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1617	@echo  ''
1618	@echo  'Documentation targets:'
1619	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1620	@echo  ''
1621	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1622	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1623	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1624	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1625	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1626	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1627	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1628	@echo  '		1: warnings which may be relevant and do not occur too often'
1629	@echo  '		2: warnings which occur quite often but may still be relevant'
1630	@echo  '		3: more obscure warnings, can most likely be ignored'
1631	@echo  '		Multiple levels can be combined with W=12 or W=123'
1632	@echo  ''
1633	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1634	@echo  'For further info see the ./README file'
1635
1636tests:
1637	$(srctree)/test/run
1638
1639# Documentation targets
1640# ---------------------------------------------------------------------------
1641%docs: scripts_basic FORCE
1642	$(Q)$(MAKE) $(build)=scripts build_docproc
1643	$(Q)$(MAKE) $(build)=doc/DocBook $@
1644
1645endif #ifeq ($(config-targets),1)
1646endif #ifeq ($(mixed-targets),1)
1647
1648PHONY += checkstack ubootrelease ubootversion
1649
1650checkstack:
1651	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1652	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1653
1654ubootrelease:
1655	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1656
1657ubootversion:
1658	@echo $(UBOOTVERSION)
1659
1660# Single targets
1661# ---------------------------------------------------------------------------
1662# Single targets are compatible with:
1663# - build with mixed source and output
1664# - build with separate output dir 'make O=...'
1665# - external modules
1666#
1667#  target-dir => where to store outputfile
1668#  build-dir  => directory in kernel source tree to use
1669
1670ifeq ($(KBUILD_EXTMOD),)
1671        build-dir  = $(patsubst %/,%,$(dir $@))
1672        target-dir = $(dir $@)
1673else
1674        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1675        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1676        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1677endif
1678
1679%.s: %.c prepare scripts FORCE
1680	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1681%.i: %.c prepare scripts FORCE
1682	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1683%.o: %.c prepare scripts FORCE
1684	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1685%.lst: %.c prepare scripts FORCE
1686	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1687%.s: %.S prepare scripts FORCE
1688	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1689%.o: %.S prepare scripts FORCE
1690	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1691%.symtypes: %.c prepare scripts FORCE
1692	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1693
1694# Modules
1695/: prepare scripts FORCE
1696	$(cmd_crmodverdir)
1697	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1698	$(build)=$(build-dir)
1699%/: prepare scripts FORCE
1700	$(cmd_crmodverdir)
1701	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1702	$(build)=$(build-dir)
1703%.ko: prepare scripts FORCE
1704	$(cmd_crmodverdir)
1705	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1706	$(build)=$(build-dir) $(@:.ko=.o)
1707	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1708
1709# Consistency checks
1710# ---------------------------------------------------------------------------
1711
1712PHONY += coccicheck
1713
1714coccicheck:
1715	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1716
1717# FIXME Should go into a make.lib or something
1718# ===========================================================================
1719
1720quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1721      cmd_rmdirs = rm -rf $(rm-dirs)
1722
1723quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1724      cmd_rmfiles = rm -f $(rm-files)
1725
1726# read all saved command lines
1727
1728targets := $(wildcard $(sort $(targets)))
1729cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1730
1731ifneq ($(cmd_files),)
1732  $(cmd_files): ;	# Do not try to update included dependency files
1733  include $(cmd_files)
1734endif
1735
1736endif	# skip-makefile
1737
1738PHONY += FORCE
1739FORCE:
1740
1741# Declare the contents of the .PHONY variable as phony.  We keep that
1742# information in a variable so we can use it in if_changed and friends.
1743.PHONY: $(PHONY)
1744