xref: /openbmc/u-boot/Makefile (revision 3bf65cb5)
1# SPDX-License-Identifier: GPL-2.0+
2
3VERSION = 2018
4PATCHLEVEL = 09
5SUBLEVEL =
6EXTRAVERSION =
7NAME =
8
9# *DOCUMENTATION*
10# To see a list of typical targets execute "make help"
11# More info can be located in ./README
12# Comments in this file are targeted only to the developer, do not
13# expect to learn how to build the kernel reading this file.
14
15# o Do not use make's built-in rules and variables
16#   (this increases performance and avoids hard-to-debug behaviour);
17# o Look for make include files relative to root of kernel src
18MAKEFLAGS += -rR --include-dir=$(CURDIR)
19
20# Avoid funny character set dependencies
21unexport LC_ALL
22LC_COLLATE=C
23LC_NUMERIC=C
24export LC_COLLATE LC_NUMERIC
25
26# Avoid interference with shell env settings
27unexport GREP_OPTIONS
28
29# We are using a recursive build, so we need to do a little thinking
30# to get the ordering right.
31#
32# Most importantly: sub-Makefiles should only ever modify files in
33# their own directory. If in some directory we have a dependency on
34# a file in another dir (which doesn't happen often, but it's often
35# unavoidable when linking the built-in.o targets which finally
36# turn into vmlinux), we will call a sub make in that other dir, and
37# after that we are sure that everything which is in that other dir
38# is now up to date.
39#
40# The only cases where we need to modify files which have global
41# effects are thus separated out and done before the recursive
42# descending is started. They are now explicitly listed as the
43# prepare rule.
44
45# Beautify output
46# ---------------------------------------------------------------------------
47#
48# Normally, we echo the whole command before executing it. By making
49# that echo $($(quiet)$(cmd)), we now have the possibility to set
50# $(quiet) to choose other forms of output instead, e.g.
51#
52#         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
53#         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
54#
55# If $(quiet) is empty, the whole command will be printed.
56# If it is set to "quiet_", only the short version will be printed.
57# If it is set to "silent_", nothing will be printed at all, since
58# the variable $(silent_cmd_cc_o_c) doesn't exist.
59#
60# A simple variant is to prefix commands with $(Q) - that's useful
61# for commands that shall be hidden in non-verbose mode.
62#
63#	$(Q)ln $@ :<
64#
65# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
66# If KBUILD_VERBOSE equals 1 then the above command is displayed.
67#
68# To put more focus on warnings, be less verbose as default
69# Use 'make V=1' to see the full commands
70
71ifeq ("$(origin V)", "command line")
72  KBUILD_VERBOSE = $(V)
73endif
74ifndef KBUILD_VERBOSE
75  KBUILD_VERBOSE = 0
76endif
77
78ifeq ($(KBUILD_VERBOSE),1)
79  quiet =
80  Q =
81else
82  quiet=quiet_
83  Q = @
84endif
85
86# If the user is running make -s (silent mode), suppress echoing of
87# commands
88
89ifneq ($(filter 4.%,$(MAKE_VERSION)),)	# make-4
90ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
91  quiet=silent_
92endif
93else					# make-3.8x
94ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
95  quiet=silent_
96endif
97endif
98
99export quiet Q KBUILD_VERBOSE
100
101# kbuild supports saving output files in a separate directory.
102# To locate output files in a separate directory two syntaxes are supported.
103# In both cases the working directory must be the root of the kernel src.
104# 1) O=
105# Use "make O=dir/to/store/output/files/"
106#
107# 2) Set KBUILD_OUTPUT
108# Set the environment variable KBUILD_OUTPUT to point to the directory
109# where the output files shall be placed.
110# export KBUILD_OUTPUT=dir/to/store/output/files/
111# make
112#
113# The O= assignment takes precedence over the KBUILD_OUTPUT environment
114# variable.
115
116# KBUILD_SRC is set on invocation of make in OBJ directory
117# KBUILD_SRC is not intended to be used by the regular user (for now)
118ifeq ($(KBUILD_SRC),)
119
120# OK, Make called in directory where kernel src resides
121# Do we want to locate output files in a separate directory?
122ifeq ("$(origin O)", "command line")
123  KBUILD_OUTPUT := $(O)
124endif
125
126# That's our default target when none is given on the command line
127PHONY := _all
128_all:
129
130# Cancel implicit rules on top Makefile
131$(CURDIR)/Makefile Makefile: ;
132
133ifneq ($(KBUILD_OUTPUT),)
134# Invoke a second make in the output directory, passing relevant variables
135# check that the output directory actually exists
136saved-output := $(KBUILD_OUTPUT)
137KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
138								&& /bin/pwd)
139$(if $(KBUILD_OUTPUT),, \
140     $(error failed to create output directory "$(saved-output)"))
141
142PHONY += $(MAKECMDGOALS) sub-make
143
144$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
145	@:
146
147sub-make: FORCE
148	$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
149	-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
150
151# Leave processing to above invocation of make
152skip-makefile := 1
153endif # ifneq ($(KBUILD_OUTPUT),)
154endif # ifeq ($(KBUILD_SRC),)
155
156# We process the rest of the Makefile if this is the final invocation of make
157ifeq ($(skip-makefile),)
158
159# Do not print "Entering directory ...",
160# but we want to display it when entering to the output directory
161# so that IDEs/editors are able to understand relative filenames.
162MAKEFLAGS += --no-print-directory
163
164# Call a source code checker (by default, "sparse") as part of the
165# C compilation.
166#
167# Use 'make C=1' to enable checking of only re-compiled files.
168# Use 'make C=2' to enable checking of *all* source files, regardless
169# of whether they are re-compiled or not.
170#
171# See the file "Documentation/sparse.txt" for more details, including
172# where to get the "sparse" utility.
173
174ifeq ("$(origin C)", "command line")
175  KBUILD_CHECKSRC = $(C)
176endif
177ifndef KBUILD_CHECKSRC
178  KBUILD_CHECKSRC = 0
179endif
180
181# Use make M=dir to specify directory of external module to build
182# Old syntax make ... SUBDIRS=$PWD is still supported
183# Setting the environment variable KBUILD_EXTMOD take precedence
184ifdef SUBDIRS
185  KBUILD_EXTMOD ?= $(SUBDIRS)
186endif
187
188ifeq ("$(origin M)", "command line")
189  KBUILD_EXTMOD := $(M)
190endif
191
192# If building an external module we do not care about the all: rule
193# but instead _all depend on modules
194PHONY += all
195ifeq ($(KBUILD_EXTMOD),)
196_all: all
197else
198_all: modules
199endif
200
201ifeq ($(KBUILD_SRC),)
202        # building in the source tree
203        srctree := .
204else
205        ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
206                # building in a subdirectory of the source tree
207                srctree := ..
208        else
209                srctree := $(KBUILD_SRC)
210        endif
211endif
212objtree		:= .
213src		:= $(srctree)
214obj		:= $(objtree)
215
216VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
217
218export srctree objtree VPATH
219
220# Make sure CDPATH settings don't interfere
221unexport CDPATH
222
223#########################################################################
224
225HOSTARCH := $(shell uname -m | \
226	sed -e s/i.86/x86/ \
227	    -e s/sun4u/sparc64/ \
228	    -e s/arm.*/arm/ \
229	    -e s/sa110/arm/ \
230	    -e s/ppc64/powerpc/ \
231	    -e s/ppc/powerpc/ \
232	    -e s/macppc/powerpc/\
233	    -e s/sh.*/sh/)
234
235HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
236	    sed -e 's/\(cygwin\).*/cygwin/')
237
238export	HOSTARCH HOSTOS
239
240#########################################################################
241
242# set default to nothing for native builds
243ifeq ($(HOSTARCH),$(ARCH))
244CROSS_COMPILE ?=
245endif
246
247KCONFIG_CONFIG	?= .config
248export KCONFIG_CONFIG
249
250# SHELL used by kbuild
251CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
252	  else if [ -x /bin/bash ]; then echo /bin/bash; \
253	  else echo sh; fi ; fi)
254
255HOSTCC       = cc
256HOSTCXX      = c++
257HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
258		$(if $(CONFIG_TOOLS_DEBUG),-g)
259HOSTCXXFLAGS = -O2
260
261# With the move to GCC 6, we have implicitly upgraded our language
262# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
263# Some Linux distributions (including RHEL7, SLES13, Debian 8) still
264# have older compilers as their default, so we make it explicit for
265# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
266CSTD_FLAG := -std=gnu11
267ifeq ($(HOSTOS),linux)
268HOSTCFLAGS += $(CSTD_FLAG)
269endif
270
271ifeq ($(HOSTOS),cygwin)
272HOSTCFLAGS	+= -ansi
273endif
274
275# Mac OS X / Darwin's C preprocessor is Apple specific.  It
276# generates numerous errors and warnings.  We want to bypass it
277# and use GNU C's cpp.	To do this we pass the -traditional-cpp
278# option to the compiler.  Note that the -traditional-cpp flag
279# DOES NOT have the same semantics as GNU C's flag, all it does
280# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
281#
282# Apple's linker is similar, thanks to the new 2 stage linking
283# multiple symbol definitions are treated as errors, hence the
284# -multiply_defined suppress option to turn off this error.
285#
286ifeq ($(HOSTOS),darwin)
287# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
288DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
289DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
290
291os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
292	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
293
294# Snow Leopards build environment has no longer restrictions as described above
295HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
296HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
297HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
298
299# since Lion (10.7) ASLR is on by default, but we use linker generated lists
300# in some host tools which is a problem then ... so disable ASLR for these
301# tools
302HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
303endif
304
305# Decide whether to build built-in, modular, or both.
306# Normally, just do built-in.
307
308KBUILD_MODULES :=
309KBUILD_BUILTIN := 1
310
311# If we have only "make modules", don't compile built-in objects.
312# When we're building modules with modversions, we need to consider
313# the built-in objects during the descend as well, in order to
314# make sure the checksums are up to date before we record them.
315
316ifeq ($(MAKECMDGOALS),modules)
317  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
318endif
319
320# If we have "make <whatever> modules", compile modules
321# in addition to whatever we do anyway.
322# Just "make" or "make all" shall build modules as well
323
324# U-Boot does not need modules
325#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
326#  KBUILD_MODULES := 1
327#endif
328
329#ifeq ($(MAKECMDGOALS),)
330#  KBUILD_MODULES := 1
331#endif
332
333export KBUILD_MODULES KBUILD_BUILTIN
334export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
335
336# We need some generic definitions (do not try to remake the file).
337scripts/Kbuild.include: ;
338include scripts/Kbuild.include
339
340# Make variables (CC, etc...)
341
342AS		= $(CROSS_COMPILE)as
343# Always use GNU ld
344ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
345LD		= $(CROSS_COMPILE)ld.bfd
346else
347LD		= $(CROSS_COMPILE)ld
348endif
349CC		= $(CROSS_COMPILE)gcc
350CPP		= $(CC) -E
351AR		= $(CROSS_COMPILE)ar
352NM		= $(CROSS_COMPILE)nm
353LDR		= $(CROSS_COMPILE)ldr
354STRIP		= $(CROSS_COMPILE)strip
355OBJCOPY		= $(CROSS_COMPILE)objcopy
356OBJDUMP		= $(CROSS_COMPILE)objdump
357LEX		= flex
358YACC		= bison
359AWK		= awk
360PERL		= perl
361PYTHON		?= python
362PYTHON2		= python2
363PYTHON3		= python3
364DTC		?= $(objtree)/scripts/dtc/dtc
365CHECK		= sparse
366
367CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
368		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
369
370KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
371
372KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
373		   -Wno-format-security \
374		   -fno-builtin -ffreestanding $(CSTD_FLAG)
375KBUILD_CFLAGS	+= -fshort-wchar -fno-strict-aliasing
376KBUILD_AFLAGS   := -D__ASSEMBLY__
377
378# Don't generate position independent code
379KBUILD_CFLAGS	+= $(call cc-option,-fno-PIE)
380KBUILD_AFLAGS	+= $(call cc-option,-fno-PIE)
381
382# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
383UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
384UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
385
386export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
387export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
388export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
389export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
390export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
391export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
392
393export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
394export KBUILD_CFLAGS KBUILD_AFLAGS
395
396# When compiling out-of-tree modules, put MODVERDIR in the module
397# tree rather than in the kernel tree. The kernel tree might
398# even be read-only.
399export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
400
401# Files to ignore in find ... statements
402
403export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
404			  -name CVS -o -name .pc -o -name .hg -o -name .git \) \
405			  -prune -o
406export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
407			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
408
409# ===========================================================================
410# Rules shared between *config targets and build targets
411
412# Basic helpers built in scripts/
413PHONY += scripts_basic
414scripts_basic:
415	$(Q)$(MAKE) $(build)=scripts/basic
416	$(Q)rm -f .tmp_quiet_recordmcount
417
418# To avoid any implicit rule to kick in, define an empty command.
419scripts/basic/%: scripts_basic ;
420
421PHONY += outputmakefile
422# outputmakefile generates a Makefile in the output directory, if using a
423# separate output directory. This allows convenient use of make in the
424# output directory.
425outputmakefile:
426ifneq ($(KBUILD_SRC),)
427	$(Q)ln -fsn $(srctree) source
428	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
429	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
430endif
431
432# To make sure we do not include .config for any of the *config targets
433# catch them early, and hand them over to scripts/kconfig/Makefile
434# It is allowed to specify more targets when calling make, including
435# mixing *config targets and build targets.
436# For example 'make oldconfig all'.
437# Detect when mixed targets is specified, and make a second invocation
438# of make so .config is not included in this case either (for *config).
439
440version_h := include/generated/version_autogenerated.h
441timestamp_h := include/generated/timestamp_autogenerated.h
442defaultenv_h := include/generated/defaultenv_autogenerated.h
443
444no-dot-config-targets := clean clobber mrproper distclean \
445			 help %docs check% coccicheck \
446			 ubootversion backup tests
447
448config-targets := 0
449mixed-targets  := 0
450dot-config     := 1
451
452ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
453	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
454		dot-config := 0
455	endif
456endif
457
458ifeq ($(KBUILD_EXTMOD),)
459        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
460                config-targets := 1
461                ifneq ($(words $(MAKECMDGOALS)),1)
462                        mixed-targets := 1
463                endif
464        endif
465endif
466
467ifeq ($(mixed-targets),1)
468# ===========================================================================
469# We're called with mixed targets (*config and build targets).
470# Handle them one by one.
471
472PHONY += $(MAKECMDGOALS) __build_one_by_one
473
474$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
475	@:
476
477__build_one_by_one:
478	$(Q)set -e; \
479	for i in $(MAKECMDGOALS); do \
480		$(MAKE) -f $(srctree)/Makefile $$i; \
481	done
482
483else
484ifeq ($(config-targets),1)
485# ===========================================================================
486# *config targets only - make sure prerequisites are updated, and descend
487# in scripts/kconfig to make the *config target
488
489KBUILD_DEFCONFIG := sandbox_defconfig
490export KBUILD_DEFCONFIG KBUILD_KCONFIG
491
492config: scripts_basic outputmakefile FORCE
493	$(Q)$(MAKE) $(build)=scripts/kconfig $@
494
495%config: scripts_basic outputmakefile FORCE
496	$(Q)$(MAKE) $(build)=scripts/kconfig $@
497
498else
499# ===========================================================================
500# Build targets only - this includes vmlinux, arch specific targets, clean
501# targets and others. In general all targets except *config targets.
502
503# Additional helpers built in scripts/
504# Carefully list dependencies so we do not try to build scripts twice
505# in parallel
506PHONY += scripts
507scripts: scripts_basic include/config/auto.conf
508	$(Q)$(MAKE) $(build)=$(@)
509
510ifeq ($(dot-config),1)
511# Read in config
512-include include/config/auto.conf
513
514# Read in dependencies to all Kconfig* files, make sure to run
515# oldconfig if changes are detected.
516-include include/config/auto.conf.cmd
517
518# To avoid any implicit rule to kick in, define an empty command
519$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
520
521# If .config is newer than include/config/auto.conf, someone tinkered
522# with it and forgot to run make oldconfig.
523# if auto.conf.cmd is missing then we are probably in a cleaned tree so
524# we execute the config step to be sure to catch updated Kconfig files
525include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
526	$(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
527	@# If the following part fails, include/config/auto.conf should be
528	@# deleted so "make silentoldconfig" will be re-run on the next build.
529	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
530		{ rm -f include/config/auto.conf; false; }
531	@# include/config.h has been updated after "make silentoldconfig".
532	@# We need to touch include/config/auto.conf so it gets newer
533	@# than include/config.h.
534	@# Otherwise, 'make silentoldconfig' would be invoked twice.
535	$(Q)touch include/config/auto.conf
536
537u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
538	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
539
540-include include/autoconf.mk
541-include include/autoconf.mk.dep
542
543# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
544# is up-to-date. When we switch to a different board configuration, old CONFIG
545# macros are still remaining in include/config/auto.conf. Without the following
546# gimmick, wrong config.mk would be included leading nasty warnings/errors.
547ifneq ($(wildcard $(KCONFIG_CONFIG)),)
548ifneq ($(wildcard include/config/auto.conf),)
549autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
550						include/config/auto.conf)
551ifeq ($(autoconf_is_old),)
552include config.mk
553include arch/$(ARCH)/Makefile
554endif
555endif
556endif
557
558# These are set by the arch-specific config.mk. Make sure they are exported
559# so they can be used when building an EFI application.
560export EFI_LDS		# Filename of EFI link script in arch/$(ARCH)/lib
561export EFI_CRT0		# Filename of EFI CRT0 in arch/$(ARCH)/lib
562export EFI_RELOC	# Filename of EFU relocation code in arch/$(ARCH)/lib
563export CFLAGS_EFI	# Compiler flags to add when building EFI app
564export CFLAGS_NON_EFI	# Compiler flags to remove when building EFI app
565export EFI_TARGET	# binutils target if EFI is natively supported
566
567# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
568# that (or fail if absent).  Otherwise, search for a linker script in a
569# standard location.
570
571ifndef LDSCRIPT
572	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
573	ifdef CONFIG_SYS_LDSCRIPT
574		# need to strip off double quotes
575		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
576	endif
577endif
578
579# If there is no specified link script, we look in a number of places for it
580ifndef LDSCRIPT
581	ifeq ($(wildcard $(LDSCRIPT)),)
582		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
583	endif
584	ifeq ($(wildcard $(LDSCRIPT)),)
585		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
586	endif
587	ifeq ($(wildcard $(LDSCRIPT)),)
588		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
589	endif
590endif
591
592else
593# Dummy target needed, because used as prerequisite
594include/config/auto.conf: ;
595endif # $(dot-config)
596
597#
598# Xtensa linker script cannot be preprocessed with -ansi because of
599# preprocessor operations on strings that don't make C identifiers.
600#
601ifeq ($(CONFIG_XTENSA),)
602LDPPFLAGS	+= -ansi
603endif
604
605ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
606KBUILD_CFLAGS	+= -Os
607else
608KBUILD_CFLAGS	+= -O2
609endif
610
611KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
612KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
613
614# change __FILE__ to the relative path from the srctree
615KBUILD_CFLAGS	+= $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
616
617KBUILD_CFLAGS	+= -g
618# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
619# option to the assembler.
620KBUILD_AFLAGS	+= -g
621
622# Report stack usage if supported
623# ARC tools based on GCC 7.1 has an issue with stack usage
624# with naked functions, see commit message for more details
625ifndef CONFIG_ARC
626ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
627	KBUILD_CFLAGS += -fstack-usage
628endif
629endif
630
631KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
632ifeq ($(cc-name),clang)
633KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
634KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
635KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
636KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
637KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
638endif
639
640# turn jbsr into jsr for m68k
641ifeq ($(ARCH),m68k)
642ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
643KBUILD_AFLAGS += -Wa,-gstabs,-S
644endif
645endif
646
647# Prohibit date/time macros, which would make the build non-deterministic
648KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
649
650include scripts/Makefile.extrawarn
651
652# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
653KBUILD_CPPFLAGS += $(KCPPFLAGS)
654KBUILD_AFLAGS += $(KAFLAGS)
655KBUILD_CFLAGS += $(KCFLAGS)
656
657# Use UBOOTINCLUDE when you must reference the include/ directory.
658# Needed to be compatible with the O= option
659UBOOTINCLUDE    := \
660		-Iinclude \
661		$(if $(KBUILD_SRC), -I$(srctree)/include) \
662		$(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
663			$(if $(CONFIG_HAS_THUMB2),, \
664				-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
665		-I$(srctree)/arch/$(ARCH)/include \
666		-include $(srctree)/include/linux/kconfig.h
667
668NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
669CHECKFLAGS     += $(NOSTDINC_FLAGS)
670
671# FIX ME
672cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
673							$(NOSTDINC_FLAGS)
674c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
675
676#########################################################################
677# U-Boot objects....order is important (i.e. start must be first)
678
679HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
680
681libs-y += lib/
682libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
683libs-$(CONFIG_OF_EMBED) += dts/
684libs-y += fs/
685libs-y += net/
686libs-y += disk/
687libs-y += drivers/
688libs-y += drivers/dma/
689libs-y += drivers/gpio/
690libs-y += drivers/i2c/
691libs-y += drivers/mtd/
692libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
693libs-y += drivers/mtd/onenand/
694libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
695libs-y += drivers/mtd/spi/
696libs-y += drivers/net/
697libs-y += drivers/net/phy/
698libs-y += drivers/pci/
699libs-y += drivers/power/ \
700	drivers/power/domain/ \
701	drivers/power/fuel_gauge/ \
702	drivers/power/mfd/ \
703	drivers/power/pmic/ \
704	drivers/power/battery/ \
705	drivers/power/regulator/
706libs-y += drivers/spi/
707libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
708libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
709libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
710libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
711libs-y += drivers/serial/
712libs-y += drivers/usb/dwc3/
713libs-y += drivers/usb/common/
714libs-y += drivers/usb/emul/
715libs-y += drivers/usb/eth/
716libs-y += drivers/usb/gadget/
717libs-y += drivers/usb/gadget/udc/
718libs-y += drivers/usb/host/
719libs-y += drivers/usb/musb/
720libs-y += drivers/usb/musb-new/
721libs-y += drivers/usb/phy/
722libs-y += drivers/usb/ulpi/
723libs-y += cmd/
724libs-y += common/
725libs-y += env/
726libs-$(CONFIG_API) += api/
727libs-$(CONFIG_HAS_POST) += post/
728libs-y += test/
729libs-y += test/dm/
730libs-$(CONFIG_UT_ENV) += test/env/
731libs-$(CONFIG_UT_OVERLAY) += test/overlay/
732
733libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
734
735libs-y := $(sort $(libs-y))
736
737u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
738
739u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
740
741libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
742
743u-boot-init := $(head-y)
744u-boot-main := $(libs-y)
745
746
747# Add GCC lib
748ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
749PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
750else
751PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
752endif
753PLATFORM_LIBS += $(PLATFORM_LIBGCC)
754
755ifdef CONFIG_CC_COVERAGE
756KBUILD_CFLAGS += --coverage
757PLATFORM_LIBGCC += -lgcov
758endif
759
760export PLATFORM_LIBS
761export PLATFORM_LIBGCC
762
763# Special flags for CPP when processing the linker script.
764# Pass the version down so we can handle backwards compatibility
765# on the fly.
766LDPPFLAGS += \
767	-include $(srctree)/include/u-boot/u-boot.lds.h \
768	-DCPUDIR=$(CPUDIR) \
769	$(shell $(LD) --version | \
770	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
771
772#########################################################################
773#########################################################################
774
775ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
776BOARD_SIZE_CHECK = \
777	@actual=`wc -c $@ | awk '{print $$1}'`; \
778	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
779	if test $$actual -gt $$limit; then \
780		echo "$@ exceeds file size limit:" >&2 ; \
781		echo "  limit:  $$limit bytes" >&2 ; \
782		echo "  actual: $$actual bytes" >&2 ; \
783		echo "  excess: $$((actual - limit)) bytes" >&2; \
784		exit 1; \
785	fi
786else
787BOARD_SIZE_CHECK =
788endif
789
790# Statically apply RELA-style relocations (currently arm64 only)
791# This is useful for arm64 where static relocation needs to be performed on
792# the raw binary, but certain simulators only accept an ELF file (but don't
793# do the relocation).
794ifneq ($(CONFIG_STATIC_RELA),)
795# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
796DO_STATIC_RELA = \
797	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
798	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
799	tools/relocate-rela $(2) $(3) $$start $$end
800else
801DO_STATIC_RELA =
802endif
803
804# Always append ALL so that arch config.mk's can add custom ones
805ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
806
807ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
808ifeq ($(CONFIG_SPL_FSL_PBL),y)
809ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
810else
811ifneq ($(CONFIG_SECURE_BOOT), y)
812# For Secure Boot The Image needs to be signed and Header must also
813# be included. So The image has to be built explicitly
814ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
815endif
816endif
817ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
818ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
819ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
820else
821ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
822ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
823else
824ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
825endif
826endif
827ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
828ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
829ifeq ($(CONFIG_SPL_FRAMEWORK),y)
830ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
831endif
832ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
833ifneq ($(CONFIG_SPL_TARGET),)
834ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
835endif
836ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
837ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
838ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
839
840ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
841ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
842endif
843
844# Build a combined spl + u-boot image for sunxi
845ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
846ALL-y += u-boot-sunxi-with-spl.bin
847endif
848
849# enable combined SPL/u-boot/dtb rules for tegra
850ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
851ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
852ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
853endif
854
855# Add optional build target if defined in board/cpu/soc headers
856ifneq ($(CONFIG_BUILD_TARGET),)
857ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
858endif
859
860ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
861ALL-y += init_sp_bss_offset_check
862endif
863
864LDFLAGS_u-boot += $(LDFLAGS_FINAL)
865
866# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
867LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
868
869ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
870LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
871endif
872
873# Normally we fill empty space with 0xff
874quiet_cmd_objcopy = OBJCOPY $@
875cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
876	$(OBJCOPYFLAGS_$(@F)) $< $@
877
878# Provide a version which does not do this, for use by EFI
879quiet_cmd_zobjcopy = OBJCOPY $@
880cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
881
882quiet_cmd_efipayload = OBJCOPY $@
883cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
884
885MKIMAGEOUTPUT ?= /dev/null
886
887quiet_cmd_mkimage = MKIMAGE $@
888cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
889	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
890
891quiet_cmd_mkfitimage = MKIMAGE $@
892cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
893	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
894
895quiet_cmd_cat = CAT     $@
896cmd_cat = cat $(filter-out $(PHONY), $^) > $@
897
898append = cat $(filter-out $< $(PHONY), $^) >> $@
899
900quiet_cmd_pad_cat = CAT     $@
901cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
902
903cfg: u-boot.cfg
904
905quiet_cmd_cfgcheck = CFGCHK  $2
906cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
907		$(srctree)/scripts/config_whitelist.txt $(srctree)
908
909all:		$(ALL-y) cfg
910ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
911	@echo "===================== WARNING ======================"
912	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
913	@echo "(possibly in a subsequent patch in your series)"
914	@echo "before sending patches to the mailing list."
915	@echo "===================================================="
916endif
917	@# Check that this build does not use CONFIG options that we do not
918	@# know about unless they are in Kconfig. All the existing CONFIG
919	@# options are whitelisted, so new ones should not be added.
920	$(call cmd,cfgcheck,u-boot.cfg)
921
922PHONY += dtbs
923dtbs: dts/dt.dtb
924	@:
925dts/dt.dtb: u-boot
926	$(Q)$(MAKE) $(build)=dts dtbs
927
928quiet_cmd_copy = COPY    $@
929      cmd_copy = cp $< $@
930
931ifeq ($(CONFIG_MULTI_DTB_FIT),y)
932
933fit-dtb.blob: dts/dt.dtb FORCE
934	$(call if_changed,mkimage)
935
936MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
937	-a 0 -e 0 -E \
938	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
939
940u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
941	$(call if_changed,cat)
942
943u-boot.bin: u-boot-fit-dtb.bin FORCE
944	$(call if_changed,copy)
945else ifeq ($(CONFIG_OF_SEPARATE),y)
946u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
947	$(call if_changed,cat)
948
949u-boot.bin: u-boot-dtb.bin FORCE
950	$(call if_changed,copy)
951else
952u-boot.bin: u-boot-nodtb.bin FORCE
953	$(call if_changed,copy)
954endif
955
956%.imx: %.bin
957	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
958
959%.vyb: %.imx
960	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
961
962quiet_cmd_copy = COPY    $@
963      cmd_copy = cp $< $@
964
965u-boot.dtb: dts/dt.dtb
966	$(call cmd,copy)
967
968OBJCOPYFLAGS_u-boot.hex := -O ihex
969
970OBJCOPYFLAGS_u-boot.srec := -O srec
971
972u-boot.hex u-boot.srec: u-boot FORCE
973	$(call if_changed,objcopy)
974
975OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
976
977u-boot-elf.srec: u-boot.elf FORCE
978	$(call if_changed,objcopy)
979
980OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
981
982spl/u-boot-spl.srec: spl/u-boot-spl FORCE
983	$(call if_changed,objcopy)
984
985OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
986		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
987
988OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
989
990spl/u-boot-spl.hex: spl/u-boot-spl FORCE
991	$(call if_changed,objcopy)
992
993binary_size_check: u-boot-nodtb.bin FORCE
994	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
995	map_size=$(shell cat u-boot.map | \
996		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
997		| sed 's/0X//g' \
998		| bc); \
999	if [ "" != "$$map_size" ]; then \
1000		if test $$map_size -ne $$file_size; then \
1001			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1002			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1003			exit 1; \
1004		fi \
1005	fi
1006
1007ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1008ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1009subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1010else
1011subtract_sys_malloc_f_len = true
1012endif
1013# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1014# so low that the DTB could probably use 90%+ of the available space, for
1015# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1016# safe for now and tweak this later if space becomes tight.
1017# A rejected alternative would be to check that some absolute minimum stack
1018# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1019# deliberately build-specific, to take account of build-to-build stack usage
1020# differences due to different feature sets, there is no common absolute value
1021# to check against.
1022init_sp_bss_offset_check: u-boot.dtb FORCE
1023	@dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1024	space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1025	$(subtract_sys_malloc_f_len) ; \
1026	quarter_space=$$(($${space} / 4)) ; \
1027	if [ $${dtb_size} -gt $${quarter_space} ]; then \
1028		echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1029		echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1030		exit 1 ; \
1031	fi
1032endif
1033
1034u-boot-nodtb.bin: u-boot FORCE
1035	$(call if_changed,objcopy)
1036	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1037	$(BOARD_SIZE_CHECK)
1038
1039u-boot.ldr:	u-boot
1040		$(CREATE_LDR_ENV)
1041		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1042		$(BOARD_SIZE_CHECK)
1043
1044# binman
1045# ---------------------------------------------------------------------------
1046quiet_cmd_binman = BINMAN  $@
1047cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
1048		-I . -I $(srctree)/board/$(BOARDDIR) $<
1049
1050OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1051
1052OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1053
1054u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1055	$(call if_changed,objcopy)
1056
1057#
1058# U-Boot entry point, needed for booting of full-blown U-Boot
1059# from the SPL U-Boot version.
1060#
1061ifndef CONFIG_SYS_UBOOT_START
1062CONFIG_SYS_UBOOT_START := 0
1063endif
1064
1065# Boards with more complex image requirments can provide an .its source file
1066# or a generator script
1067ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1068U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1069else
1070ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1071U_BOOT_ITS := u-boot.its
1072$(U_BOOT_ITS): FORCE
1073	$(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1074	$(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1075endif
1076endif
1077
1078ifdef CONFIG_SPL_LOAD_FIT
1079MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1080	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1081	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1082	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1083else
1084MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1085	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1086	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1087MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1088	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1089	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1090u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1091CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1092endif
1093
1094MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1095
1096MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1097	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1098
1099MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1100	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1101	$(if $(KEYDIR),-k $(KEYDIR))
1102
1103MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1104		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1105
1106u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1107		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1108	$(call if_changed,mkimage)
1109
1110u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1111	$(call if_changed,mkfitimage)
1112	$(BOARD_SIZE_CHECK)
1113
1114u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1115	$(call if_changed,mkimage)
1116
1117u-boot.sha1:	u-boot.bin
1118		tools/ubsha1 u-boot.bin
1119
1120u-boot.dis:	u-boot
1121		$(OBJDUMP) -d $< > $@
1122
1123ifneq ($(CONFIG_SPL_PAYLOAD),)
1124SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1125else
1126SPL_PAYLOAD := u-boot.bin
1127endif
1128
1129OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1130				   --pad-to=$(CONFIG_SPL_PAD_TO)
1131u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1132	$(call if_changed,pad_cat)
1133
1134MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1135
1136lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1137	$(call if_changed,mkimage)
1138
1139OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1140
1141lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1142	$(call if_changed,objcopy)
1143
1144OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1145
1146lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1147	$(call if_changed,objcopy)
1148
1149lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1150	$(call if_changed,cat)
1151
1152CLEAN_FILES += lpc32xx-*
1153
1154OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1155				   --pad-to=$(CONFIG_TPL_PAD_TO)
1156tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1157	$(call if_changed,pad_cat)
1158
1159SPL: spl/u-boot-spl.bin FORCE
1160	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1161
1162u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1163	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1164
1165MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1166
1167u-boot.ubl: u-boot-with-spl.bin FORCE
1168	$(call if_changed,mkimage)
1169
1170MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1171	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1172	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1173spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1174	$(call if_changed,mkimage)
1175
1176OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1177u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1178	$(call if_changed,pad_cat)
1179
1180u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1181	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1182u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1183	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1184
1185# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1186# Both images are created using mkimage (crc etc), so that the ROM
1187# bootloader can check its integrity. Padding needs to be done to the
1188# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1189# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1190# The resulting image containing both U-Boot images is called u-boot.spr
1191MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1192	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1193spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1194	$(call if_changed,mkimage)
1195
1196OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1197			  --gap-fill=0xff
1198u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1199	$(call if_changed,pad_cat)
1200
1201ifneq ($(CONFIG_ARCH_SOCFPGA),)
1202quiet_cmd_socboot = SOCBOOT $@
1203cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1204			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1205			u-boot.img > $@ || rm -f $@
1206u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1207	$(call if_changed,socboot)
1208endif
1209
1210# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1211# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1212# the middle. This is handled by binman based on an image description in the
1213# board's device tree.
1214ifneq ($(CONFIG_X86_RESET_VECTOR),)
1215rom: u-boot.rom FORCE
1216
1217refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1218	$(call if_changed,copy)
1219
1220quiet_cmd_ldr = LD      $@
1221cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1222	       $(filter-out FORCE,$^) -o $@
1223
1224u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1225		$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1226		$(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1227	$(call if_changed,binman)
1228
1229OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1230u-boot-x86-16bit.bin: u-boot FORCE
1231	$(call if_changed,objcopy)
1232endif
1233
1234ifneq ($(CONFIG_ARCH_SUNXI),)
1235ifeq ($(CONFIG_ARM64),)
1236u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1237	$(call if_changed,binman)
1238else
1239u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1240	$(call if_changed,cat)
1241endif
1242endif
1243
1244ifneq ($(CONFIG_TEGRA),)
1245ifneq ($(CONFIG_BINMAN),)
1246# Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1247%-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1248		spl/%-spl %.bin FORCE
1249	$(call if_changed,binman)
1250else
1251OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1252u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1253	$(call if_changed,pad_cat)
1254
1255OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1256u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1257	$(call if_changed,pad_cat)
1258
1259u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1260	$(call if_changed,copy)
1261endif  # binman
1262endif
1263
1264OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1265u-boot-app.efi: u-boot FORCE
1266	$(call if_changed,zobjcopy)
1267
1268u-boot.bin.o: u-boot.bin FORCE
1269	$(call if_changed,efipayload)
1270
1271u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1272	$(call if_changed_dep,cpp_lds)
1273
1274# Rule to link the EFI payload which contains a stub and a U-Boot binary
1275quiet_cmd_u-boot_payload ?= LD      $@
1276      cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1277      -T u-boot-payload.lds arch/x86/cpu/call32.o \
1278      lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1279      $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1280
1281u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1282	$(call if_changed,u-boot_payload)
1283
1284OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1285u-boot-payload.efi: u-boot-payload FORCE
1286	$(call if_changed,zobjcopy)
1287
1288u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1289	$(call if_changed,cat)
1290
1291#Add a target to create boot binary having SPL binary in PBI format
1292#concatenated with u-boot binary. It is need by PowerPC SoC having
1293#internal SRAM <= 512KB.
1294MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1295		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1296		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1297
1298spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1299	$(call if_changed,mkimage)
1300
1301ifeq ($(ARCH),arm)
1302UBOOT_BINLOAD := u-boot.img
1303else
1304UBOOT_BINLOAD := u-boot.bin
1305endif
1306
1307OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1308			  --gap-fill=0xff
1309
1310u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1311	$(call if_changed,pad_cat)
1312
1313# PPC4xx needs the SPL at the end of the image, since the reset vector
1314# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1315# and need to introduce a new build target with the full blown U-Boot
1316# at the start padded up to the start of the SPL image. And then concat
1317# the SPL image to the end.
1318
1319OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1320	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1321u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1322	$(call if_changed,pad_cat)
1323
1324# Create a new ELF from a raw binary file.
1325ifndef PLATFORM_ELFENTRY
1326  PLATFORM_ELFENTRY = "_start"
1327endif
1328quiet_cmd_u-boot-elf ?= LD      $@
1329	cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1330	--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1331	-Ttext=$(CONFIG_SYS_TEXT_BASE)
1332u-boot.elf: u-boot.bin
1333	$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1334	$(call if_changed,u-boot-elf)
1335
1336ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1337
1338# Rule to link u-boot
1339# May be overridden by arch/$(ARCH)/config.mk
1340quiet_cmd_u-boot__ ?= LD      $@
1341      cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1342      -T u-boot.lds $(u-boot-init)                             \
1343      --start-group $(u-boot-main) --end-group                 \
1344      $(PLATFORM_LIBS) -Map u-boot.map;                        \
1345      $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1346
1347quiet_cmd_smap = GEN     common/system_map.o
1348cmd_smap = \
1349	smap=`$(call SYSTEM_MAP,u-boot) | \
1350		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1351	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1352		-c $(srctree)/common/system_map.c -o common/system_map.o
1353
1354u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1355	+$(call if_changed,u-boot__)
1356ifeq ($(CONFIG_KALLSYMS),y)
1357	$(call cmd,smap)
1358	$(call cmd,u-boot__) common/system_map.o
1359endif
1360
1361ifeq ($(CONFIG_RISCV),y)
1362	@tools/prelink-riscv $@ 0
1363endif
1364
1365quiet_cmd_sym ?= SYM     $@
1366      cmd_sym ?= $(OBJDUMP) -t $< > $@
1367u-boot.sym: u-boot FORCE
1368	$(call if_changed,sym)
1369
1370# The actual objects are generated when descending,
1371# make sure no implicit rule kicks in
1372$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1373
1374# Handle descending into subdirectories listed in $(vmlinux-dirs)
1375# Preset locale variables to speed up the build process. Limit locale
1376# tweaks to this spot to avoid wrong language settings when running
1377# make menuconfig etc.
1378# Error messages still appears in the original language
1379
1380PHONY += $(u-boot-dirs)
1381$(u-boot-dirs): prepare scripts
1382	$(Q)$(MAKE) $(build)=$@
1383
1384tools: prepare
1385# The "tools" are needed early
1386$(filter-out tools, $(u-boot-dirs)): tools
1387# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1388# is "yes"), so compile examples after U-Boot is compiled.
1389examples: $(filter-out examples, $(u-boot-dirs))
1390
1391define filechk_uboot.release
1392	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1393endef
1394
1395# Store (new) UBOOTRELEASE string in include/config/uboot.release
1396include/config/uboot.release: include/config/auto.conf FORCE
1397	$(call filechk,uboot.release)
1398
1399
1400# Things we need to do before we recursively start building the kernel
1401# or the modules are listed in "prepare".
1402# A multi level approach is used. prepareN is processed before prepareN-1.
1403# archprepare is used in arch Makefiles and when processed asm symlink,
1404# version.h and scripts_basic is processed / created.
1405
1406# Listed in dependency order
1407PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1408
1409# prepare3 is used to check if we are building in a separate output directory,
1410# and if so do:
1411# 1) Check that make has not been executed in the kernel src $(srctree)
1412prepare3: include/config/uboot.release
1413ifneq ($(KBUILD_SRC),)
1414	@$(kecho) '  Using $(srctree) as source for U-Boot'
1415	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1416		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1417		echo >&2 "  in the '$(srctree)' directory.";\
1418		/bin/false; \
1419	fi;
1420endif
1421
1422# prepare2 creates a makefile if using a separate output directory
1423prepare2: prepare3 outputmakefile
1424
1425prepare1: prepare2 $(version_h) $(timestamp_h) \
1426                   include/config/auto.conf
1427ifeq ($(wildcard $(LDSCRIPT)),)
1428	@echo >&2 "  Could not find linker script."
1429	@/bin/false
1430endif
1431
1432ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1433prepare1: $(defaultenv_h)
1434endif
1435
1436archprepare: prepare1 scripts_basic
1437
1438prepare0: archprepare FORCE
1439	$(Q)$(MAKE) $(build)=.
1440
1441# All the preparing..
1442prepare: prepare0
1443
1444# Generate some files
1445# ---------------------------------------------------------------------------
1446
1447define filechk_version.h
1448	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1449	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1450	echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1451	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1452endef
1453
1454# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1455# The BSD date on the other hand behaves different and would produce errors
1456# with the misused '-d' switch.  Respect that and search a working date with
1457# well known pre- and suffixes for the GNU variant of date.
1458define filechk_timestamp.h
1459	(if test -n "$${SOURCE_DATE_EPOCH}"; then \
1460		SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1461		DATE=""; \
1462		for date in gdate date.gnu date; do \
1463			$${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1464		done; \
1465		if test -n "$${DATE}"; then \
1466			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1467			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1468			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1469			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1470			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1471		else \
1472			return 42; \
1473		fi; \
1474	else \
1475		LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1476		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1477		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1478		LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1479		LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1480	fi)
1481endef
1482
1483define filechk_defaultenv.h
1484	(grep -v '^#' | \
1485	 grep -v '^$$' | \
1486	 tr '\n' '\0' | \
1487	 sed -e 's/\\\x0/\n/' | \
1488	 xxd -i ; echo ", 0x00" ; )
1489endef
1490
1491$(version_h): include/config/uboot.release FORCE
1492	$(call filechk,version.h)
1493
1494$(timestamp_h): $(srctree)/Makefile FORCE
1495	$(call filechk,timestamp.h)
1496
1497$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1498	$(call filechk,defaultenv.h)
1499
1500# ---------------------------------------------------------------------------
1501quiet_cmd_cpp_lds = LDS     $@
1502cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1503		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1504
1505u-boot.lds: $(LDSCRIPT) prepare FORCE
1506	$(call if_changed_dep,cpp_lds)
1507
1508spl/u-boot-spl.bin: spl/u-boot-spl
1509	@:
1510spl/u-boot-spl: tools prepare \
1511		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1512		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1513	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1514
1515spl/sunxi-spl.bin: spl/u-boot-spl
1516	@:
1517
1518spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1519	@:
1520
1521spl/u-boot-spl.sfp: spl/u-boot-spl
1522	@:
1523
1524spl/boot.bin: spl/u-boot-spl
1525	@:
1526
1527tpl/u-boot-tpl.bin: tools prepare \
1528		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1529	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1530
1531TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1532
1533FIND := find
1534FINDFLAGS := -L
1535
1536tags ctags:
1537		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1538						-name '*.[chS]' -print`
1539		ln -s ctags tags
1540
1541etags:
1542		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1543						-name '*.[chS]' -print`
1544cscope:
1545		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1546						cscope.files
1547		cscope -b -q -k
1548
1549SYSTEM_MAP = \
1550		$(NM) $1 | \
1551		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1552		LC_ALL=C sort
1553System.map:	u-boot
1554		@$(call SYSTEM_MAP,$<) > $@
1555
1556#########################################################################
1557
1558# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1559# R_AARCH64_RELATIVE (64-bit).
1560checkarmreloc: u-boot
1561	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1562		grep R_A | sort -u`"; \
1563	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1564		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1565		echo "$< contains unexpected relocations: $$RELOC"; \
1566		false; \
1567	fi
1568
1569envtools: scripts_basic $(version_h) $(timestamp_h)
1570	$(Q)$(MAKE) $(build)=tools/env
1571
1572tools-only: scripts_basic $(version_h) $(timestamp_h)
1573	$(Q)$(MAKE) $(build)=tools
1574
1575tools-all: export HOST_TOOLS_ALL=y
1576tools-all: envtools tools ;
1577
1578cross_tools: export CROSS_BUILD_TOOLS=y
1579cross_tools: tools ;
1580
1581.PHONY : CHANGELOG
1582CHANGELOG:
1583	git log --no-merges U-Boot-1_1_5.. | \
1584	unexpand -a | sed -e 's/\s\s*$$//' > $@
1585
1586#########################################################################
1587
1588###
1589# Cleaning is done on three levels.
1590# make clean     Delete most generated files
1591#                Leave enough to build external modules
1592# make mrproper  Delete the current configuration, and all generated files
1593# make distclean Remove editor backup files, patch leftover files and the like
1594
1595# Directories & files removed with 'make clean'
1596CLEAN_DIRS  += $(MODVERDIR) \
1597	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1598			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1599
1600CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1601	       boot* u-boot* MLO* SPL System.map fit-dtb.blob
1602
1603# Directories & files removed with 'make mrproper'
1604MRPROPER_DIRS  += include/config include/generated spl tpl \
1605		  .tmp_objdiff
1606MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1607		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1608
1609# clean - Delete most, but leave enough to build external modules
1610#
1611clean: rm-dirs  := $(CLEAN_DIRS)
1612clean: rm-files := $(CLEAN_FILES)
1613
1614clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1615
1616clean-dirs      := $(addprefix _clean_, $(clean-dirs))
1617
1618PHONY += $(clean-dirs) clean archclean
1619$(clean-dirs):
1620	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1621
1622clean: $(clean-dirs)
1623	$(call cmd,rmdirs)
1624	$(call cmd,rmfiles)
1625	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1626		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1627		-o -name '*.ko.*' -o -name '*.su' \
1628		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1629		-o -name '*.lex.c' -o -name '*.tab.[ch]' \
1630		-o -name '*.symtypes' -o -name 'modules.order' \
1631		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1632		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1633		-o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1634		-type f -print | xargs rm -f
1635
1636# mrproper - Delete all generated files, including .config
1637#
1638mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1639mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1640mrproper-dirs      := $(addprefix _mrproper_,scripts)
1641
1642PHONY += $(mrproper-dirs) mrproper archmrproper
1643$(mrproper-dirs):
1644	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1645
1646mrproper: clean $(mrproper-dirs)
1647	$(call cmd,rmdirs)
1648	$(call cmd,rmfiles)
1649	@rm -f arch/*/include/asm/arch
1650
1651# distclean
1652#
1653PHONY += distclean
1654
1655distclean: mrproper
1656	@find $(srctree) $(RCS_FIND_IGNORE) \
1657		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1658		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1659		-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1660		-o -name '*.pyc' \) \
1661		-type f -print | xargs rm -f
1662	@rm -f boards.cfg
1663
1664backup:
1665	F=`basename $(srctree)` ; cd .. ; \
1666	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1667
1668help:
1669	@echo  'Cleaning targets:'
1670	@echo  '  clean		  - Remove most generated files but keep the config'
1671	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1672	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1673	@echo  ''
1674	@echo  'Configuration targets:'
1675	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1676	@echo  ''
1677	@echo  'Other generic targets:'
1678	@echo  '  all		  - Build all necessary images depending on configuration'
1679	@echo  '  tests		  - Build U-Boot for sandbox and run tests'
1680	@echo  '* u-boot	  - Build the bare u-boot'
1681	@echo  '  dir/            - Build all files in dir and below'
1682	@echo  '  dir/file.[oisS] - Build specified target only'
1683	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1684	@echo  '                    (requires a recent binutils and recent build (System.map))'
1685	@echo  '  tags/ctags	  - Generate ctags file for editors'
1686	@echo  '  etags		  - Generate etags file for editors'
1687	@echo  '  cscope	  - Generate cscope index'
1688	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
1689	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
1690	@echo  "  cfg		  - Don't build, just create the .cfg files"
1691	@echo  "  envtools	  - Build only the target-side environment tools"
1692	@echo  ''
1693	@echo  'Static analysers'
1694	@echo  '  checkstack      - Generate a list of stack hogs'
1695	@echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1696	@echo  ''
1697	@echo  'Documentation targets:'
1698	@$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1699	@echo  ''
1700	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1701	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1702	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1703	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1704	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1705	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1706	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1707	@echo  '		1: warnings which may be relevant and do not occur too often'
1708	@echo  '		2: warnings which occur quite often but may still be relevant'
1709	@echo  '		3: more obscure warnings, can most likely be ignored'
1710	@echo  '		Multiple levels can be combined with W=12 or W=123'
1711	@echo  ''
1712	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1713	@echo  'For further info see the ./README file'
1714
1715tests:
1716	$(srctree)/test/run
1717
1718# Documentation targets
1719# ---------------------------------------------------------------------------
1720DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1721	       linkcheckdocs dochelp refcheckdocs
1722PHONY += $(DOC_TARGETS)
1723$(DOC_TARGETS): scripts_basic FORCE
1724	$(Q)$(MAKE) $(build)=Documentation $@
1725
1726endif #ifeq ($(config-targets),1)
1727endif #ifeq ($(mixed-targets),1)
1728
1729PHONY += checkstack ubootrelease ubootversion
1730
1731checkstack:
1732	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1733	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1734
1735ubootrelease:
1736	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1737
1738ubootversion:
1739	@echo $(UBOOTVERSION)
1740
1741# Single targets
1742# ---------------------------------------------------------------------------
1743# Single targets are compatible with:
1744# - build with mixed source and output
1745# - build with separate output dir 'make O=...'
1746# - external modules
1747#
1748#  target-dir => where to store outputfile
1749#  build-dir  => directory in kernel source tree to use
1750
1751ifeq ($(KBUILD_EXTMOD),)
1752        build-dir  = $(patsubst %/,%,$(dir $@))
1753        target-dir = $(dir $@)
1754else
1755        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1756        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1757        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1758endif
1759
1760%.s: %.c prepare scripts FORCE
1761	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1762%.i: %.c prepare scripts FORCE
1763	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1764%.o: %.c prepare scripts FORCE
1765	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1766%.lst: %.c prepare scripts FORCE
1767	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1768%.s: %.S prepare scripts FORCE
1769	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1770%.o: %.S prepare scripts FORCE
1771	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1772%.symtypes: %.c prepare scripts FORCE
1773	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1774
1775# Modules
1776/: prepare scripts FORCE
1777	$(cmd_crmodverdir)
1778	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1779	$(build)=$(build-dir)
1780%/: prepare scripts FORCE
1781	$(cmd_crmodverdir)
1782	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1783	$(build)=$(build-dir)
1784%.ko: prepare scripts FORCE
1785	$(cmd_crmodverdir)
1786	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1787	$(build)=$(build-dir) $(@:.ko=.o)
1788	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1789
1790# Consistency checks
1791# ---------------------------------------------------------------------------
1792
1793PHONY += coccicheck
1794
1795coccicheck:
1796	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1797
1798# FIXME Should go into a make.lib or something
1799# ===========================================================================
1800
1801quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1802      cmd_rmdirs = rm -rf $(rm-dirs)
1803
1804quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1805      cmd_rmfiles = rm -f $(rm-files)
1806
1807# read all saved command lines
1808
1809targets := $(wildcard $(sort $(targets)))
1810cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1811
1812ifneq ($(cmd_files),)
1813  $(cmd_files): ;	# Do not try to update included dependency files
1814  include $(cmd_files)
1815endif
1816
1817endif	# skip-makefile
1818
1819PHONY += FORCE
1820FORCE:
1821
1822# Declare the contents of the .PHONY variable as phony.  We keep that
1823# information in a variable so we can use it in if_changed and friends.
1824.PHONY: $(PHONY)
1825