xref: /openbmc/u-boot/Makefile (revision c66f5620)
1# SPDX-License-Identifier: GPL-2.0+
2
3VERSION = 2018
4PATCHLEVEL = 05
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 $(CONFIG_TOOLS_DEBUG),-g)
259HOSTCXXFLAGS = -O2
260
261# With the move to GCC 6, we have implicitly upgraded our language
262# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
263# Some Linux distributions (including RHEL7, SLES13, Debian 8) still
264# have older compilers as their default, so we make it explicit for
265# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
266ifeq ($(HOSTOS),linux)
267HOSTCFLAGS += --std=gnu11
268endif
269
270ifeq ($(HOSTOS),cygwin)
271HOSTCFLAGS	+= -ansi
272endif
273
274# Mac OS X / Darwin's C preprocessor is Apple specific.  It
275# generates numerous errors and warnings.  We want to bypass it
276# and use GNU C's cpp.	To do this we pass the -traditional-cpp
277# option to the compiler.  Note that the -traditional-cpp flag
278# DOES NOT have the same semantics as GNU C's flag, all it does
279# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
280#
281# Apple's linker is similar, thanks to the new 2 stage linking
282# multiple symbol definitions are treated as errors, hence the
283# -multiply_defined suppress option to turn off this error.
284#
285ifeq ($(HOSTOS),darwin)
286# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
287DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
288DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
289
290os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
291	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
292
293# Snow Leopards build environment has no longer restrictions as described above
294HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
295HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
296HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
297
298# since Lion (10.7) ASLR is on by default, but we use linker generated lists
299# in some host tools which is a problem then ... so disable ASLR for these
300# tools
301HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
302endif
303
304# Decide whether to build built-in, modular, or both.
305# Normally, just do built-in.
306
307KBUILD_MODULES :=
308KBUILD_BUILTIN := 1
309
310# If we have only "make modules", don't compile built-in objects.
311# When we're building modules with modversions, we need to consider
312# the built-in objects during the descend as well, in order to
313# make sure the checksums are up to date before we record them.
314
315ifeq ($(MAKECMDGOALS),modules)
316  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
317endif
318
319# If we have "make <whatever> modules", compile modules
320# in addition to whatever we do anyway.
321# Just "make" or "make all" shall build modules as well
322
323# U-Boot does not need modules
324#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
325#  KBUILD_MODULES := 1
326#endif
327
328#ifeq ($(MAKECMDGOALS),)
329#  KBUILD_MODULES := 1
330#endif
331
332export KBUILD_MODULES KBUILD_BUILTIN
333export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
334
335# We need some generic definitions (do not try to remake the file).
336scripts/Kbuild.include: ;
337include scripts/Kbuild.include
338
339# Make variables (CC, etc...)
340
341AS		= $(CROSS_COMPILE)as
342# Always use GNU ld
343ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
344LD		= $(CROSS_COMPILE)ld.bfd
345else
346LD		= $(CROSS_COMPILE)ld
347endif
348CC		= $(CROSS_COMPILE)gcc
349CPP		= $(CC) -E
350AR		= $(CROSS_COMPILE)ar
351NM		= $(CROSS_COMPILE)nm
352LDR		= $(CROSS_COMPILE)ldr
353STRIP		= $(CROSS_COMPILE)strip
354OBJCOPY		= $(CROSS_COMPILE)objcopy
355OBJDUMP		= $(CROSS_COMPILE)objdump
356AWK		= awk
357PERL		= perl
358PYTHON		?= python
359DTC		?= $(objtree)/scripts/dtc/dtc
360CHECK		= sparse
361
362CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
363		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
364
365KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
366
367KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
368		   -Wno-format-security \
369		   -fno-builtin -ffreestanding
370KBUILD_CFLAGS	+= -fshort-wchar
371KBUILD_AFLAGS   := -D__ASSEMBLY__
372
373# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
374UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
375UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
376
377export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
378export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
379export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
380export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
381export MAKE AWK PERL PYTHON
382export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
383
384export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
385export KBUILD_CFLAGS KBUILD_AFLAGS
386
387# When compiling out-of-tree modules, put MODVERDIR in the module
388# tree rather than in the kernel tree. The kernel tree might
389# even be read-only.
390export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
391
392# Files to ignore in find ... statements
393
394export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
395			  -name CVS -o -name .pc -o -name .hg -o -name .git \) \
396			  -prune -o
397export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
398			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
399
400# ===========================================================================
401# Rules shared between *config targets and build targets
402
403# Basic helpers built in scripts/
404PHONY += scripts_basic
405scripts_basic:
406	$(Q)$(MAKE) $(build)=scripts/basic
407	$(Q)rm -f .tmp_quiet_recordmcount
408
409# To avoid any implicit rule to kick in, define an empty command.
410scripts/basic/%: scripts_basic ;
411
412PHONY += outputmakefile
413# outputmakefile generates a Makefile in the output directory, if using a
414# separate output directory. This allows convenient use of make in the
415# output directory.
416outputmakefile:
417ifneq ($(KBUILD_SRC),)
418	$(Q)ln -fsn $(srctree) source
419	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
420	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
421endif
422
423# To make sure we do not include .config for any of the *config targets
424# catch them early, and hand them over to scripts/kconfig/Makefile
425# It is allowed to specify more targets when calling make, including
426# mixing *config targets and build targets.
427# For example 'make oldconfig all'.
428# Detect when mixed targets is specified, and make a second invocation
429# of make so .config is not included in this case either (for *config).
430
431version_h := include/generated/version_autogenerated.h
432timestamp_h := include/generated/timestamp_autogenerated.h
433defaultenv_h := include/generated/defaultenv_autogenerated.h
434
435no-dot-config-targets := clean clobber mrproper distclean \
436			 help %docs check% coccicheck \
437			 ubootversion backup tests
438
439config-targets := 0
440mixed-targets  := 0
441dot-config     := 1
442
443ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
444	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
445		dot-config := 0
446	endif
447endif
448
449ifeq ($(KBUILD_EXTMOD),)
450        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
451                config-targets := 1
452                ifneq ($(words $(MAKECMDGOALS)),1)
453                        mixed-targets := 1
454                endif
455        endif
456endif
457
458ifeq ($(mixed-targets),1)
459# ===========================================================================
460# We're called with mixed targets (*config and build targets).
461# Handle them one by one.
462
463PHONY += $(MAKECMDGOALS) __build_one_by_one
464
465$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
466	@:
467
468__build_one_by_one:
469	$(Q)set -e; \
470	for i in $(MAKECMDGOALS); do \
471		$(MAKE) -f $(srctree)/Makefile $$i; \
472	done
473
474else
475ifeq ($(config-targets),1)
476# ===========================================================================
477# *config targets only - make sure prerequisites are updated, and descend
478# in scripts/kconfig to make the *config target
479
480KBUILD_DEFCONFIG := sandbox_defconfig
481export KBUILD_DEFCONFIG KBUILD_KCONFIG
482
483config: scripts_basic outputmakefile FORCE
484	$(Q)$(MAKE) $(build)=scripts/kconfig $@
485
486%config: scripts_basic outputmakefile FORCE
487	$(Q)$(MAKE) $(build)=scripts/kconfig $@
488
489else
490# ===========================================================================
491# Build targets only - this includes vmlinux, arch specific targets, clean
492# targets and others. In general all targets except *config targets.
493
494# Additional helpers built in scripts/
495# Carefully list dependencies so we do not try to build scripts twice
496# in parallel
497PHONY += scripts
498scripts: scripts_basic include/config/auto.conf
499	$(Q)$(MAKE) $(build)=$(@)
500
501ifeq ($(dot-config),1)
502# Read in config
503-include include/config/auto.conf
504
505# Read in dependencies to all Kconfig* files, make sure to run
506# oldconfig if changes are detected.
507-include include/config/auto.conf.cmd
508
509# To avoid any implicit rule to kick in, define an empty command
510$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
511
512# If .config is newer than include/config/auto.conf, someone tinkered
513# with it and forgot to run make oldconfig.
514# if auto.conf.cmd is missing then we are probably in a cleaned tree so
515# we execute the config step to be sure to catch updated Kconfig files
516include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
517	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
518	@# If the following part fails, include/config/auto.conf should be
519	@# deleted so "make silentoldconfig" will be re-run on the next build.
520	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
521		{ rm -f include/config/auto.conf; false; }
522	@# include/config.h has been updated after "make silentoldconfig".
523	@# We need to touch include/config/auto.conf so it gets newer
524	@# than include/config.h.
525	@# Otherwise, 'make silentoldconfig' would be invoked twice.
526	$(Q)touch include/config/auto.conf
527
528u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
529	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
530
531-include include/autoconf.mk
532-include include/autoconf.mk.dep
533
534# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
535# is up-to-date. When we switch to a different board configuration, old CONFIG
536# macros are still remaining in include/config/auto.conf. Without the following
537# gimmick, wrong config.mk would be included leading nasty warnings/errors.
538ifneq ($(wildcard $(KCONFIG_CONFIG)),)
539ifneq ($(wildcard include/config/auto.conf),)
540autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
541						include/config/auto.conf)
542ifeq ($(autoconf_is_old),)
543include config.mk
544include arch/$(ARCH)/Makefile
545endif
546endif
547endif
548
549# These are set by the arch-specific config.mk. Make sure they are exported
550# so they can be used when building an EFI application.
551export EFI_LDS		# Filename of EFI link script in arch/$(ARCH)/lib
552export EFI_CRT0		# Filename of EFI CRT0 in arch/$(ARCH)/lib
553export EFI_RELOC	# Filename of EFU relocation code in arch/$(ARCH)/lib
554export CFLAGS_EFI	# Compiler flags to add when building EFI app
555export CFLAGS_NON_EFI	# Compiler flags to remove when building EFI app
556export EFI_TARGET	# binutils target if EFI is natively supported
557
558# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
559# that (or fail if absent).  Otherwise, search for a linker script in a
560# standard location.
561
562ifndef LDSCRIPT
563	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
564	ifdef CONFIG_SYS_LDSCRIPT
565		# need to strip off double quotes
566		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
567	endif
568endif
569
570# If there is no specified link script, we look in a number of places for it
571ifndef LDSCRIPT
572	ifeq ($(wildcard $(LDSCRIPT)),)
573		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
574	endif
575	ifeq ($(wildcard $(LDSCRIPT)),)
576		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
577	endif
578	ifeq ($(wildcard $(LDSCRIPT)),)
579		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
580	endif
581endif
582
583else
584# Dummy target needed, because used as prerequisite
585include/config/auto.conf: ;
586endif # $(dot-config)
587
588#
589# Xtensa linker script cannot be preprocessed with -ansi because of
590# preprocessor operations on strings that don't make C identifiers.
591#
592ifeq ($(CONFIG_XTENSA),)
593LDPPFLAGS	+= -ansi
594endif
595
596ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
597KBUILD_CFLAGS	+= -Os
598else
599KBUILD_CFLAGS	+= -O2
600endif
601
602KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
603KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
604
605# change __FILE__ to the relative path from the srctree
606KBUILD_CFLAGS	+= $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
607
608KBUILD_CFLAGS	+= -g
609# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
610# option to the assembler.
611KBUILD_AFLAGS	+= -g
612
613# Report stack usage if supported
614# ARC tools based on GCC 7.1 has an issue with stack usage
615# with naked functions, see commit message for more details
616ifndef CONFIG_ARC
617ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
618	KBUILD_CFLAGS += -fstack-usage
619endif
620endif
621
622KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
623ifeq ($(cc-name),clang)
624KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
625KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
626KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
627KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
628KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
629endif
630
631# turn jbsr into jsr for m68k
632ifeq ($(ARCH),m68k)
633ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
634KBUILD_AFLAGS += -Wa,-gstabs,-S
635endif
636endif
637
638# Prohibit date/time macros, which would make the build non-deterministic
639KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
640
641include scripts/Makefile.extrawarn
642
643# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
644KBUILD_CPPFLAGS += $(KCPPFLAGS)
645KBUILD_AFLAGS += $(KAFLAGS)
646KBUILD_CFLAGS += $(KCFLAGS)
647
648# Use UBOOTINCLUDE when you must reference the include/ directory.
649# Needed to be compatible with the O= option
650UBOOTINCLUDE    := \
651		-Iinclude \
652		$(if $(KBUILD_SRC), -I$(srctree)/include) \
653		$(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
654			$(if $(CONFIG_HAS_THUMB2),, \
655				-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
656		-I$(srctree)/arch/$(ARCH)/include \
657		-include $(srctree)/include/linux/kconfig.h
658
659NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
660CHECKFLAGS     += $(NOSTDINC_FLAGS)
661
662# FIX ME
663cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
664							$(NOSTDINC_FLAGS)
665c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
666
667#########################################################################
668# U-Boot objects....order is important (i.e. start must be first)
669
670HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
671
672libs-y += lib/
673libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
674libs-$(CONFIG_OF_EMBED) += dts/
675libs-y += fs/
676libs-y += net/
677libs-y += disk/
678libs-y += drivers/
679libs-y += drivers/dma/
680libs-y += drivers/gpio/
681libs-y += drivers/i2c/
682libs-y += drivers/mtd/
683libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
684libs-y += drivers/mtd/onenand/
685libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
686libs-y += drivers/mtd/spi/
687libs-y += drivers/net/
688libs-y += drivers/net/phy/
689libs-y += drivers/pci/
690libs-y += drivers/power/ \
691	drivers/power/domain/ \
692	drivers/power/fuel_gauge/ \
693	drivers/power/mfd/ \
694	drivers/power/pmic/ \
695	drivers/power/battery/ \
696	drivers/power/regulator/
697libs-y += drivers/spi/
698libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
699libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
700libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
701libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
702libs-y += drivers/serial/
703libs-y += drivers/usb/dwc3/
704libs-y += drivers/usb/common/
705libs-y += drivers/usb/emul/
706libs-y += drivers/usb/eth/
707libs-y += drivers/usb/gadget/
708libs-y += drivers/usb/gadget/udc/
709libs-y += drivers/usb/host/
710libs-y += drivers/usb/musb/
711libs-y += drivers/usb/musb-new/
712libs-y += drivers/usb/phy/
713libs-y += drivers/usb/ulpi/
714libs-y += cmd/
715libs-y += common/
716libs-y += env/
717libs-$(CONFIG_API) += api/
718libs-$(CONFIG_HAS_POST) += post/
719libs-y += test/
720libs-y += test/dm/
721libs-$(CONFIG_UT_ENV) += test/env/
722libs-$(CONFIG_UT_OVERLAY) += test/overlay/
723
724libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
725
726libs-y := $(sort $(libs-y))
727
728u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
729
730u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
731
732libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
733
734u-boot-init := $(head-y)
735u-boot-main := $(libs-y)
736
737
738# Add GCC lib
739ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
740PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
741else
742PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
743endif
744PLATFORM_LIBS += $(PLATFORM_LIBGCC)
745
746ifdef CONFIG_CC_COVERAGE
747KBUILD_CFLAGS += --coverage
748PLATFORM_LIBGCC += -lgcov
749endif
750
751export PLATFORM_LIBS
752export PLATFORM_LIBGCC
753
754# Special flags for CPP when processing the linker script.
755# Pass the version down so we can handle backwards compatibility
756# on the fly.
757LDPPFLAGS += \
758	-include $(srctree)/include/u-boot/u-boot.lds.h \
759	-DCPUDIR=$(CPUDIR) \
760	$(shell $(LD) --version | \
761	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
762
763#########################################################################
764#########################################################################
765
766ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
767BOARD_SIZE_CHECK = \
768	@actual=`wc -c $@ | awk '{print $$1}'`; \
769	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
770	if test $$actual -gt $$limit; then \
771		echo "$@ exceeds file size limit:" >&2 ; \
772		echo "  limit:  $$limit bytes" >&2 ; \
773		echo "  actual: $$actual bytes" >&2 ; \
774		echo "  excess: $$((actual - limit)) bytes" >&2; \
775		exit 1; \
776	fi
777else
778BOARD_SIZE_CHECK =
779endif
780
781# Statically apply RELA-style relocations (currently arm64 only)
782# This is useful for arm64 where static relocation needs to be performed on
783# the raw binary, but certain simulators only accept an ELF file (but don't
784# do the relocation).
785ifneq ($(CONFIG_STATIC_RELA),)
786# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
787DO_STATIC_RELA = \
788	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
789	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
790	tools/relocate-rela $(2) $(3) $$start $$end
791else
792DO_STATIC_RELA =
793endif
794
795# Always append ALL so that arch config.mk's can add custom ones
796ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
797
798ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
799ifeq ($(CONFIG_SPL_FSL_PBL),y)
800ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
801else
802ifneq ($(CONFIG_SECURE_BOOT), y)
803# For Secure Boot The Image needs to be signed and Header must also
804# be included. So The image has to be built explicitly
805ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
806endif
807endif
808ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
809ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
810ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
811else
812ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
813ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
814else
815ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
816endif
817endif
818ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
819ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
820ifeq ($(CONFIG_SPL_FRAMEWORK),y)
821ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
822endif
823ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
824ifneq ($(CONFIG_SPL_TARGET),)
825ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
826endif
827ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
828ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
829ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
830
831ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
832ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
833endif
834
835# Build a combined spl + u-boot image for sunxi
836ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
837ALL-y += u-boot-sunxi-with-spl.bin
838endif
839
840# enable combined SPL/u-boot/dtb rules for tegra
841ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
842ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
843ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
844endif
845
846# Add optional build target if defined in board/cpu/soc headers
847ifneq ($(CONFIG_BUILD_TARGET),)
848ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
849endif
850
851ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
852ALL-y += init_sp_bss_offset_check
853endif
854
855LDFLAGS_u-boot += $(LDFLAGS_FINAL)
856
857# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
858LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
859
860ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
861LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
862endif
863
864# Normally we fill empty space with 0xff
865quiet_cmd_objcopy = OBJCOPY $@
866cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
867	$(OBJCOPYFLAGS_$(@F)) $< $@
868
869# Provide a version which does not do this, for use by EFI
870quiet_cmd_zobjcopy = OBJCOPY $@
871cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
872
873quiet_cmd_efipayload = OBJCOPY $@
874cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
875
876MKIMAGEOUTPUT ?= /dev/null
877
878quiet_cmd_mkimage = MKIMAGE $@
879cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
880	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
881
882quiet_cmd_mkfitimage = MKIMAGE $@
883cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
884	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
885
886quiet_cmd_cat = CAT     $@
887cmd_cat = cat $(filter-out $(PHONY), $^) > $@
888
889append = cat $(filter-out $< $(PHONY), $^) >> $@
890
891quiet_cmd_pad_cat = CAT     $@
892cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
893
894cfg: u-boot.cfg
895
896quiet_cmd_cfgcheck = CFGCHK  $2
897cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
898		$(srctree)/scripts/config_whitelist.txt $(srctree)
899
900all:		$(ALL-y) cfg
901ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
902	@echo "===================== WARNING ======================"
903	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
904	@echo "(possibly in a subsequent patch in your series)"
905	@echo "before sending patches to the mailing list."
906	@echo "===================================================="
907endif
908	@# Check that this build does not use CONFIG options that we do not
909	@# know about unless they are in Kconfig. All the existing CONFIG
910	@# options are whitelisted, so new ones should not be added.
911	$(call cmd,cfgcheck,u-boot.cfg)
912
913PHONY += dtbs
914dtbs: dts/dt.dtb
915	@:
916dts/dt.dtb: u-boot
917	$(Q)$(MAKE) $(build)=dts dtbs
918
919quiet_cmd_copy = COPY    $@
920      cmd_copy = cp $< $@
921
922ifeq ($(CONFIG_MULTI_DTB_FIT),y)
923
924fit-dtb.blob: dts/dt.dtb FORCE
925	$(call if_changed,mkimage)
926
927MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
928	-a 0 -e 0 -E \
929	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
930
931u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
932	$(call if_changed,cat)
933
934u-boot.bin: u-boot-fit-dtb.bin FORCE
935	$(call if_changed,copy)
936else ifeq ($(CONFIG_OF_SEPARATE),y)
937u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
938	$(call if_changed,cat)
939
940u-boot.bin: u-boot-dtb.bin FORCE
941	$(call if_changed,copy)
942else
943u-boot.bin: u-boot-nodtb.bin FORCE
944	$(call if_changed,copy)
945endif
946
947%.imx: %.bin
948	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
949
950%.vyb: %.imx
951	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
952
953quiet_cmd_copy = COPY    $@
954      cmd_copy = cp $< $@
955
956u-boot.dtb: dts/dt.dtb
957	$(call cmd,copy)
958
959OBJCOPYFLAGS_u-boot.hex := -O ihex
960
961OBJCOPYFLAGS_u-boot.srec := -O srec
962
963u-boot.hex u-boot.srec: u-boot FORCE
964	$(call if_changed,objcopy)
965
966OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
967
968u-boot-elf.srec: u-boot.elf FORCE
969	$(call if_changed,objcopy)
970
971OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
972
973spl/u-boot-spl.srec: spl/u-boot-spl FORCE
974	$(call if_changed,objcopy)
975
976OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
977		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
978
979binary_size_check: u-boot-nodtb.bin FORCE
980	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
981	map_size=$(shell cat u-boot.map | \
982		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
983		| sed 's/0X//g' \
984		| bc); \
985	if [ "" != "$$map_size" ]; then \
986		if test $$map_size -ne $$file_size; then \
987			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
988			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
989			exit 1; \
990		fi \
991	fi
992
993ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
994ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
995subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
996else
997subtract_sys_malloc_f_len = true
998endif
999# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1000# so low that the DTB could probably use 90%+ of the available space, for
1001# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1002# safe for now and tweak this later if space becomes tight.
1003# A rejected alternative would be to check that some absolute minimum stack
1004# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1005# deliberately build-specific, to take account of build-to-build stack usage
1006# differences due to different feature sets, there is no common absolute value
1007# to check against.
1008init_sp_bss_offset_check: u-boot.dtb FORCE
1009	@dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1010	space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1011	$(subtract_sys_malloc_f_len) ; \
1012	quarter_space=$$(($${space} / 4)) ; \
1013	if [ $${dtb_size} -gt $${quarter_space} ]; then \
1014		echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1015		echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1016		exit 1 ; \
1017	fi
1018endif
1019
1020u-boot-nodtb.bin: u-boot FORCE
1021	$(call if_changed,objcopy)
1022	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1023	$(BOARD_SIZE_CHECK)
1024
1025u-boot.ldr:	u-boot
1026		$(CREATE_LDR_ENV)
1027		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1028		$(BOARD_SIZE_CHECK)
1029
1030# binman
1031# ---------------------------------------------------------------------------
1032quiet_cmd_binman = BINMAN  $@
1033cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
1034		-I . -I $(srctree)/board/$(BOARDDIR) $<
1035
1036OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1037
1038OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1039
1040u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1041	$(call if_changed,objcopy)
1042
1043#
1044# U-Boot entry point, needed for booting of full-blown U-Boot
1045# from the SPL U-Boot version.
1046#
1047ifndef CONFIG_SYS_UBOOT_START
1048CONFIG_SYS_UBOOT_START := 0
1049endif
1050
1051# Create a file containing the configuration options the image was built with
1052quiet_cmd_cpp_cfg = CFG     $@
1053cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1054	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
1055
1056# Boards with more complex image requirments can provide an .its source file
1057# or a generator script
1058ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1059U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1060else
1061ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1062U_BOOT_ITS := u-boot.its
1063$(U_BOOT_ITS): FORCE
1064	$(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1065	$(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1066endif
1067endif
1068
1069ifdef CONFIG_SPL_LOAD_FIT
1070MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1071	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1072	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1073	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1074else
1075MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1076	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1077	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1078MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1079	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1080	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1081u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1082CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1083endif
1084
1085MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1086
1087MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1088	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1089
1090MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1091	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1092	$(if $(KEYDIR),-k $(KEYDIR))
1093
1094MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1095		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1096
1097u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1098		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1099	$(call if_changed,mkimage)
1100
1101u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1102	$(call if_changed,mkfitimage)
1103	$(BOARD_SIZE_CHECK)
1104
1105u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1106	$(call if_changed,mkimage)
1107
1108u-boot.sha1:	u-boot.bin
1109		tools/ubsha1 u-boot.bin
1110
1111u-boot.dis:	u-boot
1112		$(OBJDUMP) -d $< > $@
1113
1114ifdef CONFIG_TPL
1115SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1116else
1117SPL_PAYLOAD := u-boot.bin
1118endif
1119
1120OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1121				   --pad-to=$(CONFIG_SPL_PAD_TO)
1122u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1123	$(call if_changed,pad_cat)
1124
1125MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1126
1127lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1128	$(call if_changed,mkimage)
1129
1130OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1131
1132lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1133	$(call if_changed,objcopy)
1134
1135OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1136
1137lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1138	$(call if_changed,objcopy)
1139
1140lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1141	$(call if_changed,cat)
1142
1143CLEAN_FILES += lpc32xx-*
1144
1145OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1146				   --pad-to=$(CONFIG_TPL_PAD_TO)
1147tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1148	$(call if_changed,pad_cat)
1149
1150SPL: spl/u-boot-spl.bin FORCE
1151	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1152
1153u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1154	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1155
1156MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1157
1158u-boot.ubl: u-boot-with-spl.bin FORCE
1159	$(call if_changed,mkimage)
1160
1161MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1162	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1163	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1164spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1165	$(call if_changed,mkimage)
1166
1167OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1168u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1169	$(call if_changed,pad_cat)
1170
1171u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1172	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1173u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1174	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1175
1176# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1177# Both images are created using mkimage (crc etc), so that the ROM
1178# bootloader can check its integrity. Padding needs to be done to the
1179# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1180# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1181# The resulting image containing both U-Boot images is called u-boot.spr
1182MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1183	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1184spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1185	$(call if_changed,mkimage)
1186
1187OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1188			  --gap-fill=0xff
1189u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1190	$(call if_changed,pad_cat)
1191
1192ifneq ($(CONFIG_ARCH_SOCFPGA),)
1193quiet_cmd_socboot = SOCBOOT $@
1194cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1195			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1196			u-boot.img > $@ || rm -f $@
1197u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1198	$(call if_changed,socboot)
1199endif
1200
1201# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1202# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1203# the middle. This is handled by binman based on an image description in the
1204# board's device tree.
1205ifneq ($(CONFIG_X86_RESET_VECTOR),)
1206rom: u-boot.rom FORCE
1207
1208refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1209	$(call if_changed,copy)
1210
1211quiet_cmd_ldr = LD      $@
1212cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1213	       $(filter-out FORCE,$^) -o $@
1214
1215u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1216		$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1217		$(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1218	$(call if_changed,binman)
1219
1220OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1221u-boot-x86-16bit.bin: u-boot FORCE
1222	$(call if_changed,objcopy)
1223endif
1224
1225ifneq ($(CONFIG_ARCH_SUNXI),)
1226ifeq ($(CONFIG_ARM64),)
1227u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1228	$(call if_changed,binman)
1229else
1230u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1231	$(call if_changed,cat)
1232endif
1233endif
1234
1235ifneq ($(CONFIG_TEGRA),)
1236ifneq ($(CONFIG_BINMAN),)
1237u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \
1238		spl/u-boot-spl u-boot.bin FORCE
1239	$(call if_changed,binman)
1240else
1241OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1242u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1243	$(call if_changed,pad_cat)
1244
1245OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1246u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1247	$(call if_changed,pad_cat)
1248
1249u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1250	$(call if_changed,copy)
1251endif  # binman
1252endif
1253
1254OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1255u-boot-app.efi: u-boot FORCE
1256	$(call if_changed,zobjcopy)
1257
1258u-boot.bin.o: u-boot.bin FORCE
1259	$(call if_changed,efipayload)
1260
1261u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1262	$(call if_changed_dep,cpp_lds)
1263
1264# Rule to link the EFI payload which contains a stub and a U-Boot binary
1265quiet_cmd_u-boot_payload ?= LD      $@
1266      cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1267      -T u-boot-payload.lds arch/x86/cpu/call32.o \
1268      lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1269      $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1270
1271u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1272	$(call if_changed,u-boot_payload)
1273
1274OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1275u-boot-payload.efi: u-boot-payload FORCE
1276	$(call if_changed,zobjcopy)
1277
1278u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1279	$(call if_changed,cat)
1280
1281#Add a target to create boot binary having SPL binary in PBI format
1282#concatenated with u-boot binary. It is need by PowerPC SoC having
1283#internal SRAM <= 512KB.
1284MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1285		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1286		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1287
1288spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1289	$(call if_changed,mkimage)
1290
1291ifeq ($(ARCH),arm)
1292UBOOT_BINLOAD := u-boot.img
1293else
1294UBOOT_BINLOAD := u-boot.bin
1295endif
1296
1297OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1298			  --gap-fill=0xff
1299
1300u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1301	$(call if_changed,pad_cat)
1302
1303# PPC4xx needs the SPL at the end of the image, since the reset vector
1304# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1305# and need to introduce a new build target with the full blown U-Boot
1306# at the start padded up to the start of the SPL image. And then concat
1307# the SPL image to the end.
1308
1309OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1310	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1311u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1312	$(call if_changed,pad_cat)
1313
1314# Create a new ELF from a raw binary file.
1315ifndef PLATFORM_ELFENTRY
1316  PLATFORM_ELFENTRY = "_start"
1317endif
1318quiet_cmd_u-boot-elf ?= LD      $@
1319	cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1320	--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1321	-Ttext=$(CONFIG_SYS_TEXT_BASE)
1322u-boot.elf: u-boot.bin
1323	$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1324	$(call if_changed,u-boot-elf)
1325
1326ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1327
1328# Rule to link u-boot
1329# May be overridden by arch/$(ARCH)/config.mk
1330quiet_cmd_u-boot__ ?= LD      $@
1331      cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1332      -T u-boot.lds $(u-boot-init)                             \
1333      --start-group $(u-boot-main) --end-group                 \
1334      $(PLATFORM_LIBS) -Map u-boot.map;                        \
1335      $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1336
1337quiet_cmd_smap = GEN     common/system_map.o
1338cmd_smap = \
1339	smap=`$(call SYSTEM_MAP,u-boot) | \
1340		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1341	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1342		-c $(srctree)/common/system_map.c -o common/system_map.o
1343
1344u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1345	+$(call if_changed,u-boot__)
1346ifeq ($(CONFIG_KALLSYMS),y)
1347	$(call cmd,smap)
1348	$(call cmd,u-boot__) common/system_map.o
1349endif
1350
1351ifeq ($(CONFIG_RISCV),y)
1352	@tools/prelink-riscv $@ 0
1353endif
1354
1355quiet_cmd_sym ?= SYM     $@
1356      cmd_sym ?= $(OBJDUMP) -t $< > $@
1357u-boot.sym: u-boot FORCE
1358	$(call if_changed,sym)
1359
1360# The actual objects are generated when descending,
1361# make sure no implicit rule kicks in
1362$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1363
1364# Handle descending into subdirectories listed in $(vmlinux-dirs)
1365# Preset locale variables to speed up the build process. Limit locale
1366# tweaks to this spot to avoid wrong language settings when running
1367# make menuconfig etc.
1368# Error messages still appears in the original language
1369
1370PHONY += $(u-boot-dirs)
1371$(u-boot-dirs): prepare scripts
1372	$(Q)$(MAKE) $(build)=$@
1373
1374tools: prepare
1375# The "tools" are needed early
1376$(filter-out tools, $(u-boot-dirs)): tools
1377# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1378# is "yes"), so compile examples after U-Boot is compiled.
1379examples: $(filter-out examples, $(u-boot-dirs))
1380
1381define filechk_uboot.release
1382	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1383endef
1384
1385# Store (new) UBOOTRELEASE string in include/config/uboot.release
1386include/config/uboot.release: include/config/auto.conf FORCE
1387	$(call filechk,uboot.release)
1388
1389
1390# Things we need to do before we recursively start building the kernel
1391# or the modules are listed in "prepare".
1392# A multi level approach is used. prepareN is processed before prepareN-1.
1393# archprepare is used in arch Makefiles and when processed asm symlink,
1394# version.h and scripts_basic is processed / created.
1395
1396# Listed in dependency order
1397PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1398
1399# prepare3 is used to check if we are building in a separate output directory,
1400# and if so do:
1401# 1) Check that make has not been executed in the kernel src $(srctree)
1402prepare3: include/config/uboot.release
1403ifneq ($(KBUILD_SRC),)
1404	@$(kecho) '  Using $(srctree) as source for U-Boot'
1405	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1406		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1407		echo >&2 "  in the '$(srctree)' directory.";\
1408		/bin/false; \
1409	fi;
1410endif
1411
1412# prepare2 creates a makefile if using a separate output directory
1413prepare2: prepare3 outputmakefile
1414
1415prepare1: prepare2 $(version_h) $(timestamp_h) \
1416                   include/config/auto.conf
1417ifeq ($(wildcard $(LDSCRIPT)),)
1418	@echo >&2 "  Could not find linker script."
1419	@/bin/false
1420endif
1421
1422ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1423prepare1: $(defaultenv_h)
1424endif
1425
1426archprepare: prepare1 scripts_basic
1427
1428prepare0: archprepare FORCE
1429	$(Q)$(MAKE) $(build)=.
1430
1431# All the preparing..
1432prepare: prepare0
1433
1434# Generate some files
1435# ---------------------------------------------------------------------------
1436
1437define filechk_version.h
1438	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1439	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1440	echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1441	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1442endef
1443
1444# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1445# The BSD date on the other hand behaves different and would produce errors
1446# with the misused '-d' switch.  Respect that and search a working date with
1447# well known pre- and suffixes for the GNU variant of date.
1448define filechk_timestamp.h
1449	(if test -n "$${SOURCE_DATE_EPOCH}"; then \
1450		SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1451		DATE=""; \
1452		for date in gdate date.gnu date; do \
1453			$${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1454		done; \
1455		if test -n "$${DATE}"; then \
1456			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1457			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1458			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1459			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1460			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1461		else \
1462			return 42; \
1463		fi; \
1464	else \
1465		LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1466		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1467		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1468		LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1469		LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1470	fi)
1471endef
1472
1473define filechk_defaultenv.h
1474	(grep -v '^#' | \
1475	 grep -v '^$$' | \
1476	 tr '\n' '\0' | \
1477	 sed -e 's/\\\x0/\n/' | \
1478	 xxd -i ; echo ", 0x00" ; )
1479endef
1480
1481$(version_h): include/config/uboot.release FORCE
1482	$(call filechk,version.h)
1483
1484$(timestamp_h): $(srctree)/Makefile FORCE
1485	$(call filechk,timestamp.h)
1486
1487$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1488	$(call filechk,defaultenv.h)
1489
1490# ---------------------------------------------------------------------------
1491quiet_cmd_cpp_lds = LDS     $@
1492cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1493		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1494
1495u-boot.lds: $(LDSCRIPT) prepare FORCE
1496	$(call if_changed_dep,cpp_lds)
1497
1498spl/u-boot-spl.bin: spl/u-boot-spl
1499	@:
1500spl/u-boot-spl: tools prepare \
1501		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1502		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1503	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1504
1505spl/sunxi-spl.bin: spl/u-boot-spl
1506	@:
1507
1508spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1509	@:
1510
1511spl/u-boot-spl.sfp: spl/u-boot-spl
1512	@:
1513
1514spl/boot.bin: spl/u-boot-spl
1515	@:
1516
1517tpl/u-boot-tpl.bin: tools prepare \
1518		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1519	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1520
1521TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1522
1523FIND := find
1524FINDFLAGS := -L
1525
1526tags ctags:
1527		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1528						-name '*.[chS]' -print`
1529		ln -s ctags tags
1530
1531etags:
1532		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1533						-name '*.[chS]' -print`
1534cscope:
1535		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1536						cscope.files
1537		cscope -b -q -k
1538
1539SYSTEM_MAP = \
1540		$(NM) $1 | \
1541		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1542		LC_ALL=C sort
1543System.map:	u-boot
1544		@$(call SYSTEM_MAP,$<) > $@
1545
1546#########################################################################
1547
1548# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1549# R_AARCH64_RELATIVE (64-bit).
1550checkarmreloc: u-boot
1551	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1552		grep R_A | sort -u`"; \
1553	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1554		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1555		echo "$< contains unexpected relocations: $$RELOC"; \
1556		false; \
1557	fi
1558
1559envtools: scripts_basic $(version_h) $(timestamp_h)
1560	$(Q)$(MAKE) $(build)=tools/env
1561
1562tools-only: scripts_basic $(version_h) $(timestamp_h)
1563	$(Q)$(MAKE) $(build)=tools
1564
1565tools-all: export HOST_TOOLS_ALL=y
1566tools-all: envtools tools ;
1567
1568cross_tools: export CROSS_BUILD_TOOLS=y
1569cross_tools: tools ;
1570
1571.PHONY : CHANGELOG
1572CHANGELOG:
1573	git log --no-merges U-Boot-1_1_5.. | \
1574	unexpand -a | sed -e 's/\s\s*$$//' > $@
1575
1576#########################################################################
1577
1578###
1579# Cleaning is done on three levels.
1580# make clean     Delete most generated files
1581#                Leave enough to build external modules
1582# make mrproper  Delete the current configuration, and all generated files
1583# make distclean Remove editor backup files, patch leftover files and the like
1584
1585# Directories & files removed with 'make clean'
1586CLEAN_DIRS  += $(MODVERDIR) \
1587	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1588			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1589
1590CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1591	       boot* u-boot* MLO* SPL System.map fit-dtb.blob
1592
1593# Directories & files removed with 'make mrproper'
1594MRPROPER_DIRS  += include/config include/generated spl tpl \
1595		  .tmp_objdiff
1596MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1597		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1598
1599# clean - Delete most, but leave enough to build external modules
1600#
1601clean: rm-dirs  := $(CLEAN_DIRS)
1602clean: rm-files := $(CLEAN_FILES)
1603
1604clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1605
1606clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1607
1608PHONY += $(clean-dirs) clean archclean
1609$(clean-dirs):
1610	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1611
1612# TODO: Do not use *.cfgtmp
1613clean: $(clean-dirs)
1614	$(call cmd,rmdirs)
1615	$(call cmd,rmfiles)
1616	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1617		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1618		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1619		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1620		-o -name '*.symtypes' -o -name 'modules.order' \
1621		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1622		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1623		-o -name '*.gcno' \) -type f -print | xargs rm -f
1624
1625# mrproper - Delete all generated files, including .config
1626#
1627mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1628mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1629mrproper-dirs      := $(addprefix _mrproper_,scripts)
1630
1631PHONY += $(mrproper-dirs) mrproper archmrproper
1632$(mrproper-dirs):
1633	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1634
1635mrproper: clean $(mrproper-dirs)
1636	$(call cmd,rmdirs)
1637	$(call cmd,rmfiles)
1638	@rm -f arch/*/include/asm/arch
1639
1640# distclean
1641#
1642PHONY += distclean
1643
1644distclean: mrproper
1645	@find $(srctree) $(RCS_FIND_IGNORE) \
1646		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1647		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1648		-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1649		-o -name '*.pyc' \) \
1650		-type f -print | xargs rm -f
1651	@rm -f boards.cfg
1652
1653backup:
1654	F=`basename $(srctree)` ; cd .. ; \
1655	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1656
1657help:
1658	@echo  'Cleaning targets:'
1659	@echo  '  clean		  - Remove most generated files but keep the config'
1660	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1661	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1662	@echo  ''
1663	@echo  'Configuration targets:'
1664	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1665	@echo  ''
1666	@echo  'Other generic targets:'
1667	@echo  '  all		  - Build all necessary images depending on configuration'
1668	@echo  '  tests		  - Build U-Boot for sandbox and run tests'
1669	@echo  '* u-boot	  - Build the bare u-boot'
1670	@echo  '  dir/            - Build all files in dir and below'
1671	@echo  '  dir/file.[oisS] - Build specified target only'
1672	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1673	@echo  '                    (requires a recent binutils and recent build (System.map))'
1674	@echo  '  tags/ctags	  - Generate ctags file for editors'
1675	@echo  '  etags		  - Generate etags file for editors'
1676	@echo  '  cscope	  - Generate cscope index'
1677	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
1678	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
1679	@echo  "  cfg		  - Don't build, just create the .cfg files"
1680	@echo  "  envtools	  - Build only the target-side environment tools"
1681	@echo  ''
1682	@echo  'Static analysers'
1683	@echo  '  checkstack      - Generate a list of stack hogs'
1684	@echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1685	@echo  ''
1686	@echo  'Documentation targets:'
1687	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1688	@echo  ''
1689	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1690	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1691	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1692	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1693	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1694	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1695	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1696	@echo  '		1: warnings which may be relevant and do not occur too often'
1697	@echo  '		2: warnings which occur quite often but may still be relevant'
1698	@echo  '		3: more obscure warnings, can most likely be ignored'
1699	@echo  '		Multiple levels can be combined with W=12 or W=123'
1700	@echo  ''
1701	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1702	@echo  'For further info see the ./README file'
1703
1704tests:
1705	$(srctree)/test/run
1706
1707# Documentation targets
1708# ---------------------------------------------------------------------------
1709%docs: scripts_basic FORCE
1710	$(Q)$(MAKE) $(build)=scripts build_docproc
1711	$(Q)$(MAKE) $(build)=doc/DocBook $@
1712
1713endif #ifeq ($(config-targets),1)
1714endif #ifeq ($(mixed-targets),1)
1715
1716PHONY += checkstack ubootrelease ubootversion
1717
1718checkstack:
1719	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1720	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1721
1722ubootrelease:
1723	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1724
1725ubootversion:
1726	@echo $(UBOOTVERSION)
1727
1728# Single targets
1729# ---------------------------------------------------------------------------
1730# Single targets are compatible with:
1731# - build with mixed source and output
1732# - build with separate output dir 'make O=...'
1733# - external modules
1734#
1735#  target-dir => where to store outputfile
1736#  build-dir  => directory in kernel source tree to use
1737
1738ifeq ($(KBUILD_EXTMOD),)
1739        build-dir  = $(patsubst %/,%,$(dir $@))
1740        target-dir = $(dir $@)
1741else
1742        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1743        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1744        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1745endif
1746
1747%.s: %.c prepare scripts FORCE
1748	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1749%.i: %.c prepare scripts FORCE
1750	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1751%.o: %.c prepare scripts FORCE
1752	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1753%.lst: %.c prepare scripts FORCE
1754	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1755%.s: %.S prepare scripts FORCE
1756	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1757%.o: %.S prepare scripts FORCE
1758	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1759%.symtypes: %.c prepare scripts FORCE
1760	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1761
1762# Modules
1763/: prepare scripts FORCE
1764	$(cmd_crmodverdir)
1765	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1766	$(build)=$(build-dir)
1767%/: prepare scripts FORCE
1768	$(cmd_crmodverdir)
1769	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1770	$(build)=$(build-dir)
1771%.ko: prepare scripts FORCE
1772	$(cmd_crmodverdir)
1773	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1774	$(build)=$(build-dir) $(@:.ko=.o)
1775	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1776
1777# Consistency checks
1778# ---------------------------------------------------------------------------
1779
1780PHONY += coccicheck
1781
1782coccicheck:
1783	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1784
1785# FIXME Should go into a make.lib or something
1786# ===========================================================================
1787
1788quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1789      cmd_rmdirs = rm -rf $(rm-dirs)
1790
1791quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1792      cmd_rmfiles = rm -f $(rm-files)
1793
1794# read all saved command lines
1795
1796targets := $(wildcard $(sort $(targets)))
1797cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1798
1799ifneq ($(cmd_files),)
1800  $(cmd_files): ;	# Do not try to update included dependency files
1801  include $(cmd_files)
1802endif
1803
1804endif	# skip-makefile
1805
1806PHONY += FORCE
1807FORCE:
1808
1809# Declare the contents of the .PHONY variable as phony.  We keep that
1810# information in a variable so we can use it in if_changed and friends.
1811.PHONY: $(PHONY)
1812