xref: /openbmc/u-boot/Makefile (revision 643ad899)
1#
2# (C) Copyright 2000-2013
3# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4#
5# SPDX-License-Identifier:	GPL-2.0+
6#
7
8VERSION = 2014
9PATCHLEVEL = 10
10SUBLEVEL =
11EXTRAVERSION =
12NAME =
13
14# *DOCUMENTATION*
15# To see a list of typical targets execute "make help"
16# More info can be located in ./README
17# Comments in this file are targeted only to the developer, do not
18# expect to learn how to build the kernel reading this file.
19
20# Do not:
21# o  use make's built-in rules and variables
22#    (this increases performance and avoids hard-to-debug behaviour);
23# o  print "Entering directory ...";
24MAKEFLAGS += -rR --no-print-directory
25
26# Avoid funny character set dependencies
27unexport LC_ALL
28LC_COLLATE=C
29LC_NUMERIC=C
30export LC_COLLATE LC_NUMERIC
31
32# We are using a recursive build, so we need to do a little thinking
33# to get the ordering right.
34#
35# Most importantly: sub-Makefiles should only ever modify files in
36# their own directory. If in some directory we have a dependency on
37# a file in another dir (which doesn't happen often, but it's often
38# unavoidable when linking the built-in.o targets which finally
39# turn into vmlinux), we will call a sub make in that other dir, and
40# after that we are sure that everything which is in that other dir
41# is now up to date.
42#
43# The only cases where we need to modify files which have global
44# effects are thus separated out and done before the recursive
45# descending is started. They are now explicitly listed as the
46# prepare rule.
47
48# To put more focus on warnings, be less verbose as default
49# Use 'make V=1' to see the full commands
50
51ifeq ("$(origin V)", "command line")
52  KBUILD_VERBOSE = $(V)
53endif
54ifndef KBUILD_VERBOSE
55  KBUILD_VERBOSE = 0
56endif
57
58# Call a source code checker (by default, "sparse") as part of the
59# C compilation.
60#
61# Use 'make C=1' to enable checking of only re-compiled files.
62# Use 'make C=2' to enable checking of *all* source files, regardless
63# of whether they are re-compiled or not.
64#
65# See the file "Documentation/sparse.txt" for more details, including
66# where to get the "sparse" utility.
67
68ifeq ("$(origin C)", "command line")
69  KBUILD_CHECKSRC = $(C)
70endif
71ifndef KBUILD_CHECKSRC
72  KBUILD_CHECKSRC = 0
73endif
74
75# Use make M=dir to specify directory of external module to build
76# Old syntax make ... SUBDIRS=$PWD is still supported
77# Setting the environment variable KBUILD_EXTMOD take precedence
78ifdef SUBDIRS
79  KBUILD_EXTMOD ?= $(SUBDIRS)
80endif
81
82ifeq ("$(origin M)", "command line")
83  KBUILD_EXTMOD := $(M)
84endif
85
86# kbuild supports saving output files in a separate directory.
87# To locate output files in a separate directory two syntaxes are supported.
88# In both cases the working directory must be the root of the kernel src.
89# 1) O=
90# Use "make O=dir/to/store/output/files/"
91#
92# 2) Set KBUILD_OUTPUT
93# Set the environment variable KBUILD_OUTPUT to point to the directory
94# where the output files shall be placed.
95# export KBUILD_OUTPUT=dir/to/store/output/files/
96# make
97#
98# The O= assignment takes precedence over the KBUILD_OUTPUT environment
99# variable.
100
101
102# KBUILD_SRC is set on invocation of make in OBJ directory
103# KBUILD_SRC is not intended to be used by the regular user (for now)
104ifeq ($(KBUILD_SRC),)
105
106# OK, Make called in directory where kernel src resides
107# Do we want to locate output files in a separate directory?
108ifeq ("$(origin O)", "command line")
109  KBUILD_OUTPUT := $(O)
110endif
111
112# That's our default target when none is given on the command line
113PHONY := _all
114_all:
115
116# Cancel implicit rules on top Makefile
117$(CURDIR)/Makefile Makefile: ;
118
119ifneq ($(KBUILD_OUTPUT),)
120# Invoke a second make in the output directory, passing relevant variables
121# check that the output directory actually exists
122saved-output := $(KBUILD_OUTPUT)
123KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
124								&& /bin/pwd)
125$(if $(KBUILD_OUTPUT),, \
126     $(error failed to create output directory "$(saved-output)"))
127
128PHONY += $(MAKECMDGOALS) sub-make
129
130$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
131	@:
132
133sub-make: FORCE
134	$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
135	KBUILD_SRC=$(CURDIR) \
136	KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
137	$(filter-out _all sub-make,$(MAKECMDGOALS))
138
139# Leave processing to above invocation of make
140skip-makefile := 1
141endif # ifneq ($(KBUILD_OUTPUT),)
142endif # ifeq ($(KBUILD_SRC),)
143
144# We process the rest of the Makefile if this is the final invocation of make
145ifeq ($(skip-makefile),)
146
147# If building an external module we do not care about the all: rule
148# but instead _all depend on modules
149PHONY += all
150ifeq ($(KBUILD_EXTMOD),)
151_all: all
152else
153_all: modules
154endif
155
156srctree		:= $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
157objtree		:= $(CURDIR)
158src		:= $(srctree)
159obj		:= $(objtree)
160
161VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
162
163export srctree objtree VPATH
164
165# Make sure CDPATH settings don't interfere
166unexport CDPATH
167
168#########################################################################
169
170HOSTARCH := $(shell uname -m | \
171	sed -e s/i.86/x86/ \
172	    -e s/sun4u/sparc64/ \
173	    -e s/arm.*/arm/ \
174	    -e s/sa110/arm/ \
175	    -e s/ppc64/powerpc/ \
176	    -e s/ppc/powerpc/ \
177	    -e s/macppc/powerpc/\
178	    -e s/sh.*/sh/)
179
180HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
181	    sed -e 's/\(cygwin\).*/cygwin/')
182
183export	HOSTARCH HOSTOS
184
185#########################################################################
186
187# set default to nothing for native builds
188ifeq ($(HOSTARCH),$(ARCH))
189CROSS_COMPILE ?=
190endif
191
192KCONFIG_CONFIG	?= .config
193export KCONFIG_CONFIG
194
195# SHELL used by kbuild
196CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
197	  else if [ -x /bin/bash ]; then echo /bin/bash; \
198	  else echo sh; fi ; fi)
199
200HOSTCC       = cc
201HOSTCXX      = c++
202HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
203HOSTCXXFLAGS = -O2
204
205ifeq ($(HOSTOS),cygwin)
206HOSTCFLAGS	+= -ansi
207endif
208
209# Mac OS X / Darwin's C preprocessor is Apple specific.  It
210# generates numerous errors and warnings.  We want to bypass it
211# and use GNU C's cpp.	To do this we pass the -traditional-cpp
212# option to the compiler.  Note that the -traditional-cpp flag
213# DOES NOT have the same semantics as GNU C's flag, all it does
214# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
215#
216# Apple's linker is similar, thanks to the new 2 stage linking
217# multiple symbol definitions are treated as errors, hence the
218# -multiply_defined suppress option to turn off this error.
219#
220ifeq ($(HOSTOS),darwin)
221# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
222DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
223DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
224
225os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
226	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
227
228# Snow Leopards build environment has no longer restrictions as described above
229HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
230HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
231HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
232endif
233
234# Decide whether to build built-in, modular, or both.
235# Normally, just do built-in.
236
237KBUILD_MODULES :=
238KBUILD_BUILTIN := 1
239
240# If we have only "make modules", don't compile built-in objects.
241# When we're building modules with modversions, we need to consider
242# the built-in objects during the descend as well, in order to
243# make sure the checksums are up to date before we record them.
244
245ifeq ($(MAKECMDGOALS),modules)
246  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
247endif
248
249# If we have "make <whatever> modules", compile modules
250# in addition to whatever we do anyway.
251# Just "make" or "make all" shall build modules as well
252
253# U-Boot does not need modules
254#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
255#  KBUILD_MODULES := 1
256#endif
257
258#ifeq ($(MAKECMDGOALS),)
259#  KBUILD_MODULES := 1
260#endif
261
262export KBUILD_MODULES KBUILD_BUILTIN
263export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
264
265# Beautify output
266# ---------------------------------------------------------------------------
267#
268# Normally, we echo the whole command before executing it. By making
269# that echo $($(quiet)$(cmd)), we now have the possibility to set
270# $(quiet) to choose other forms of output instead, e.g.
271#
272#         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
273#         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
274#
275# If $(quiet) is empty, the whole command will be printed.
276# If it is set to "quiet_", only the short version will be printed.
277# If it is set to "silent_", nothing will be printed at all, since
278# the variable $(silent_cmd_cc_o_c) doesn't exist.
279#
280# A simple variant is to prefix commands with $(Q) - that's useful
281# for commands that shall be hidden in non-verbose mode.
282#
283#	$(Q)ln $@ :<
284#
285# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
286# If KBUILD_VERBOSE equals 1 then the above command is displayed.
287
288ifeq ($(KBUILD_VERBOSE),1)
289  quiet =
290  Q =
291else
292  quiet=quiet_
293  Q = @
294endif
295
296# If the user is running make -s (silent mode), suppress echoing of
297# commands
298
299ifneq ($(filter 4.%,$(MAKE_VERSION)),)	# make-4
300ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
301  quiet=silent_
302endif
303else					# make-3.8x
304ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
305  quiet=silent_
306endif
307endif
308
309export quiet Q KBUILD_VERBOSE
310
311# Look for make include files relative to root of kernel src
312MAKEFLAGS += --include-dir=$(srctree)
313
314# We need some generic definitions (do not try to remake the file).
315$(srctree)/scripts/Kbuild.include: ;
316include $(srctree)/scripts/Kbuild.include
317
318# Make variables (CC, etc...)
319
320AS		= $(CROSS_COMPILE)as
321# Always use GNU ld
322ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
323LD		= $(CROSS_COMPILE)ld.bfd
324else
325LD		= $(CROSS_COMPILE)ld
326endif
327CC		= $(CROSS_COMPILE)gcc
328CPP		= $(CC) -E
329AR		= $(CROSS_COMPILE)ar
330NM		= $(CROSS_COMPILE)nm
331LDR		= $(CROSS_COMPILE)ldr
332STRIP		= $(CROSS_COMPILE)strip
333OBJCOPY		= $(CROSS_COMPILE)objcopy
334OBJDUMP		= $(CROSS_COMPILE)objdump
335AWK		= awk
336PERL		= perl
337PYTHON		= python
338DTC		= dtc
339CHECK		= sparse
340
341CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
342		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
343
344KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
345
346KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
347		   -Wno-format-security \
348		   -fno-builtin -ffreestanding
349KBUILD_AFLAGS   := -D__ASSEMBLY__
350
351# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
352UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
353UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
354
355export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
356export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
357export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
358export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
359export MAKE AWK PERL PYTHON
360export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
361
362export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
363export KBUILD_CFLAGS KBUILD_AFLAGS
364
365# When compiling out-of-tree modules, put MODVERDIR in the module
366# tree rather than in the kernel tree. The kernel tree might
367# even be read-only.
368export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
369
370# Files to ignore in find ... statements
371
372export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
373			  -name CVS -o -name .pc -o -name .hg -o -name .git \) \
374			  -prune -o
375export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
376			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
377
378# ===========================================================================
379# Rules shared between *config targets and build targets
380
381# Basic helpers built in scripts/
382PHONY += scripts_basic
383scripts_basic:
384	$(Q)$(MAKE) $(build)=scripts/basic
385	$(Q)rm -f .tmp_quiet_recordmcount
386
387# To avoid any implicit rule to kick in, define an empty command.
388scripts/basic/%: scripts_basic ;
389
390PHONY += outputmakefile
391# outputmakefile generates a Makefile in the output directory, if using a
392# separate output directory. This allows convenient use of make in the
393# output directory.
394outputmakefile:
395ifneq ($(KBUILD_SRC),)
396	$(Q)ln -fsn $(srctree) source
397	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
398	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
399endif
400
401# To make sure we do not include .config for any of the *config targets
402# catch them early, and hand them over to scripts/kconfig/Makefile
403# It is allowed to specify more targets when calling make, including
404# mixing *config targets and build targets.
405# For example 'make oldconfig all'.
406# Detect when mixed targets is specified, and make a second invocation
407# of make so .config is not included in this case either (for *config).
408
409version_h := include/generated/version_autogenerated.h
410timestamp_h := include/generated/timestamp_autogenerated.h
411
412no-dot-config-targets := clean clobber mrproper distclean \
413			 help %docs check% coccicheck \
414			 ubootversion backup
415
416config-targets := 0
417mixed-targets  := 0
418dot-config     := 1
419
420ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
421	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
422		dot-config := 0
423	endif
424endif
425
426ifeq ($(KBUILD_EXTMOD),)
427        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
428                config-targets := 1
429                ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
430                        mixed-targets := 1
431                endif
432        endif
433endif
434
435ifeq ($(mixed-targets),1)
436# ===========================================================================
437# We're called with mixed targets (*config and build targets).
438# Handle them one by one.
439
440PHONY += $(MAKECMDGOALS) __build_one_by_one
441
442$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
443	@:
444
445__build_one_by_one:
446	$(Q)set -e; \
447	for i in $(MAKECMDGOALS); do \
448		$(MAKE) -f $(srctree)/Makefile $$i; \
449	done
450
451else
452ifeq ($(config-targets),1)
453# ===========================================================================
454# *config targets only - make sure prerequisites are updated, and descend
455# in scripts/kconfig to make the *config target
456
457KBUILD_DEFCONFIG := sandbox_defconfig
458export KBUILD_DEFCONFIG KBUILD_KCONFIG
459
460config: scripts_basic outputmakefile FORCE
461	+$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@
462
463%config: scripts_basic outputmakefile FORCE
464	+$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@
465
466else
467# ===========================================================================
468# Build targets only - this includes vmlinux, arch specific targets, clean
469# targets and others. In general all targets except *config targets.
470
471ifeq ($(dot-config),1)
472# Read in config
473-include include/config/auto.conf
474
475# Read in dependencies to all Kconfig* files, make sure to run
476# oldconfig if changes are detected.
477-include include/config/auto.conf.cmd
478
479# To avoid any implicit rule to kick in, define an empty command
480$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
481
482# If .config is newer than include/config/auto.conf, someone tinkered
483# with it and forgot to run make oldconfig.
484# if auto.conf.cmd is missing then we are probably in a cleaned tree so
485# we execute the config step to be sure to catch updated Kconfig files
486include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
487	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
488
489-include include/autoconf.mk
490-include include/autoconf.mk.dep
491
492# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
493# is up-to-date. When we switch to a different board configuration, old CONFIG
494# macros are still remaining in include/config/auto.conf. Without the following
495# gimmick, wrong config.mk would be included leading nasty warnings/errors.
496autoconf_is_current := $(if $(wildcard $(KCONFIG_CONFIG)),$(shell find . \
497		-path ./include/config/auto.conf -newer $(KCONFIG_CONFIG)))
498ifneq ($(autoconf_is_current),)
499include $(srctree)/config.mk
500endif
501
502# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
503# that (or fail if absent).  Otherwise, search for a linker script in a
504# standard location.
505
506ifndef LDSCRIPT
507	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
508	ifdef CONFIG_SYS_LDSCRIPT
509		# need to strip off double quotes
510		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
511	endif
512endif
513
514# If there is no specified link script, we look in a number of places for it
515ifndef LDSCRIPT
516	ifeq ($(wildcard $(LDSCRIPT)),)
517		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
518	endif
519	ifeq ($(wildcard $(LDSCRIPT)),)
520		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
521	endif
522	ifeq ($(wildcard $(LDSCRIPT)),)
523		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
524	endif
525endif
526
527else
528# Dummy target needed, because used as prerequisite
529include/config/auto.conf: ;
530endif # $(dot-config)
531
532ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
533KBUILD_CFLAGS	+= -Os
534else
535KBUILD_CFLAGS	+= -O2
536endif
537
538ifdef BUILD_TAG
539KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
540endif
541
542KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
543
544KBUILD_CFLAGS	+= -g
545# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
546# option to the assembler.
547KBUILD_AFLAGS	+= -g
548
549# Report stack usage if supported
550ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
551	KBUILD_CFLAGS += -fstack-usage
552endif
553
554KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
555
556# turn jbsr into jsr for m68k
557ifeq ($(ARCH),m68k)
558ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
559KBUILD_AFLAGS += -Wa,-gstabs,-S
560endif
561endif
562
563# Prohibit date/time macros, which would make the build non-deterministic
564KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
565
566ifneq ($(CONFIG_SYS_TEXT_BASE),)
567KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
568endif
569
570export CONFIG_SYS_TEXT_BASE
571
572include $(srctree)/scripts/Makefile.extrawarn
573
574# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
575KBUILD_CPPFLAGS += $(KCPPFLAGS)
576KBUILD_AFLAGS += $(KAFLAGS)
577KBUILD_CFLAGS += $(KCFLAGS)
578
579# Use UBOOTINCLUDE when you must reference the include/ directory.
580# Needed to be compatible with the O= option
581UBOOTINCLUDE    := \
582		-Iinclude \
583		$(if $(KBUILD_SRC), -I$(srctree)/include) \
584		-I$(srctree)/arch/$(ARCH)/include \
585		-include $(srctree)/include/linux/kconfig.h
586
587NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
588CHECKFLAGS     += $(NOSTDINC_FLAGS)
589
590# FIX ME
591cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
592							$(NOSTDINC_FLAGS)
593c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
594
595#########################################################################
596# U-Boot objects....order is important (i.e. start must be first)
597
598head-y := $(CPUDIR)/start.o
599head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
600head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
601
602HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
603
604libs-y += lib/
605libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
606libs-y += $(CPUDIR)/
607ifdef SOC
608libs-y += $(CPUDIR)/$(SOC)/
609endif
610libs-$(CONFIG_OF_EMBED) += dts/
611libs-y += arch/$(ARCH)/lib/
612libs-y += fs/
613libs-y += net/
614libs-y += disk/
615libs-y += drivers/
616libs-y += drivers/dma/
617libs-y += drivers/gpio/
618libs-y += drivers/i2c/
619libs-y += drivers/mmc/
620libs-y += drivers/mtd/
621libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
622libs-y += drivers/mtd/onenand/
623libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
624libs-y += drivers/mtd/spi/
625libs-y += drivers/net/
626libs-y += drivers/net/phy/
627libs-y += drivers/pci/
628libs-y += drivers/power/ \
629	drivers/power/fuel_gauge/ \
630	drivers/power/mfd/ \
631	drivers/power/pmic/ \
632	drivers/power/battery/
633libs-y += drivers/spi/
634libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
635libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
636libs-y += drivers/serial/
637libs-y += drivers/usb/eth/
638libs-y += drivers/usb/gadget/
639libs-y += drivers/usb/host/
640libs-y += drivers/usb/musb/
641libs-y += drivers/usb/musb-new/
642libs-y += drivers/usb/phy/
643libs-y += drivers/usb/ulpi/
644libs-y += common/
645libs-y += lib/libfdt/
646libs-$(CONFIG_API) += api/
647libs-$(CONFIG_HAS_POST) += post/
648libs-y += test/
649libs-y += test/dm/
650
651ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
652libs-y += arch/$(ARCH)/imx-common/
653endif
654
655ifneq (,$(filter $(SOC), armada-xp kirkwood))
656libs-y += arch/$(ARCH)/mvebu-common/
657endif
658
659libs-$(CONFIG_ARM) += arch/arm/cpu/
660libs-$(CONFIG_PPC) += arch/powerpc/cpu/
661
662libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
663
664libs-y := $(sort $(libs-y))
665
666u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
667
668u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
669
670libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
671
672u-boot-init := $(head-y)
673u-boot-main := $(libs-y)
674
675
676# Add GCC lib
677ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
678PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
679else
680PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
681endif
682PLATFORM_LIBS += $(PLATFORM_LIBGCC)
683export PLATFORM_LIBS
684export PLATFORM_LIBGCC
685
686# Special flags for CPP when processing the linker script.
687# Pass the version down so we can handle backwards compatibility
688# on the fly.
689LDPPFLAGS += \
690	-include $(srctree)/include/u-boot/u-boot.lds.h \
691	-DCPUDIR=$(CPUDIR) \
692	$(shell $(LD) --version | \
693	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
694
695#########################################################################
696#########################################################################
697
698ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
699BOARD_SIZE_CHECK = \
700	@actual=`wc -c $@ | awk '{print $$1}'`; \
701	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
702	if test $$actual -gt $$limit; then \
703		echo "$@ exceeds file size limit:" >&2 ; \
704		echo "  limit:  $$limit bytes" >&2 ; \
705		echo "  actual: $$actual bytes" >&2 ; \
706		echo "  excess: $$((actual - limit)) bytes" >&2; \
707		exit 1; \
708	fi
709else
710BOARD_SIZE_CHECK =
711endif
712
713# Statically apply RELA-style relocations (currently arm64 only)
714ifneq ($(CONFIG_STATIC_RELA),)
715# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
716DO_STATIC_RELA = \
717	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
718	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
719	tools/relocate-rela $(2) $(3) $$start $$end
720else
721DO_STATIC_RELA =
722endif
723
724# Always append ALL so that arch config.mk's can add custom ones
725ALL-y += u-boot.srec u-boot.bin System.map binary_size_check
726
727ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
728ifeq ($(CONFIG_SPL_FSL_PBL),y)
729ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
730else
731ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
732endif
733ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
734ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
735ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
736ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
737ifeq ($(CONFIG_SPL_FRAMEWORK),y)
738ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
739endif
740ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
741ifneq ($(CONFIG_SPL_TARGET),)
742ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
743endif
744ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
745
746# enable combined SPL/u-boot/dtb rules for tegra
747ifneq ($(CONFIG_TEGRA),)
748ifeq ($(CONFIG_SPL),y)
749ifeq ($(CONFIG_OF_SEPARATE),y)
750ALL-y += u-boot-dtb-tegra.bin
751else
752ALL-y += u-boot-nodtb-tegra.bin
753endif
754endif
755endif
756
757# Add optional build target if defined in board/cpu/soc headers
758ifneq ($(CONFIG_BUILD_TARGET),)
759ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
760endif
761
762LDFLAGS_u-boot += $(LDFLAGS_FINAL)
763ifneq ($(CONFIG_SYS_TEXT_BASE),)
764LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
765endif
766
767quiet_cmd_objcopy = OBJCOPY $@
768cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
769
770quiet_cmd_mkimage = MKIMAGE $@
771cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
772	$(if $(KBUILD_VERBOSE:1=), >/dev/null)
773
774quiet_cmd_cat = CAT     $@
775cmd_cat = cat $(filter-out $(PHONY), $^) > $@
776
777append = cat $(filter-out $< $(PHONY), $^) >> $@
778
779quiet_cmd_pad_cat = CAT     $@
780cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
781
782all:		$(ALL-y)
783
784PHONY += dtbs
785dtbs dts/dt.dtb: checkdtc u-boot
786	$(Q)$(MAKE) $(build)=dts dtbs
787
788u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE
789	$(call if_changed,cat)
790
791%.imx: %.bin
792	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
793
794quiet_cmd_copy = COPY    $@
795      cmd_copy = cp $< $@
796
797u-boot.dtb: dts/dt.dtb
798	$(call cmd,copy)
799
800OBJCOPYFLAGS_u-boot.hex := -O ihex
801
802OBJCOPYFLAGS_u-boot.srec := -O srec
803
804u-boot.hex u-boot.srec: u-boot FORCE
805	$(call if_changed,objcopy)
806
807OBJCOPYFLAGS_u-boot.bin := -O binary
808
809binary_size_check: u-boot.bin FORCE
810	@file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \
811	map_size=$(shell cat u-boot.map | \
812		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
813		| sed 's/0X//g' \
814		| bc); \
815	if [ "" != "$$map_size" ]; then \
816		if test $$map_size -ne $$file_size; then \
817			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
818			echo "  but u-boot.bin shows $$file_size" >&2 ; \
819			exit 1; \
820		fi \
821	fi
822
823u-boot.bin: u-boot FORCE
824	$(call if_changed,objcopy)
825	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
826	$(BOARD_SIZE_CHECK)
827
828u-boot.ldr:	u-boot
829		$(CREATE_LDR_ENV)
830		$(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
831		$(BOARD_SIZE_CHECK)
832
833OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
834
835OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
836
837u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
838	$(call if_changed,objcopy)
839
840#
841# U-Boot entry point, needed for booting of full-blown U-Boot
842# from the SPL U-Boot version.
843#
844ifndef CONFIG_SYS_UBOOT_START
845CONFIG_SYS_UBOOT_START := 0
846endif
847
848MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
849	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
850	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
851
852MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
853	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
854
855MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
856		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
857
858u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
859	$(call if_changed,mkimage)
860
861MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
862
863u-boot-dtb.img: u-boot-dtb.bin FORCE
864	$(call if_changed,mkimage)
865
866u-boot.sha1:	u-boot.bin
867		tools/ubsha1 u-boot.bin
868
869u-boot.dis:	u-boot
870		$(OBJDUMP) -d $< > $@
871
872ifdef CONFIG_TPL
873SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
874else
875SPL_PAYLOAD := u-boot.bin
876endif
877
878OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
879				   --pad-to=$(CONFIG_SPL_PAD_TO)
880u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
881	$(call if_changed,pad_cat)
882
883OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
884				   --pad-to=$(CONFIG_TPL_PAD_TO)
885tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
886	$(call if_changed,pad_cat)
887
888SPL: spl/u-boot-spl.bin FORCE
889	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
890
891u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
892	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
893
894MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
895
896u-boot.ubl: u-boot-with-spl.bin FORCE
897	$(call if_changed,mkimage)
898
899MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
900	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
901	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
902spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
903	$(call if_changed,mkimage)
904
905OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
906u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
907	$(call if_changed,pad_cat)
908
909u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
910	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
911u-boot.sb: u-boot.bin spl/u-boot-spl.bin
912	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
913
914# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
915# Both images are created using mkimage (crc etc), so that the ROM
916# bootloader can check its integrity. Padding needs to be done to the
917# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
918# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
919# The resulting image containing both U-Boot images is called u-boot.spr
920MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
921	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
922spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
923	$(call if_changed,mkimage)
924
925OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
926			  --gap-fill=0xff
927u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
928	$(call if_changed,pad_cat)
929
930MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \
931	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL
932spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE
933	$(call if_changed,mkimage)
934
935OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
936			  --gap-fill=0
937u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE
938	$(call if_changed,pad_cat)
939
940MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \
941	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot
942u-boot-nand.gph: u-boot.bin FORCE
943	$(call if_changed,mkimage)
944	@dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@
945
946ifneq ($(CONFIG_SUNXI),)
947OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \
948				   --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
949u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE
950	$(call if_changed,pad_cat)
951endif
952
953ifneq ($(CONFIG_TEGRA),)
954OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
955u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
956	$(call if_changed,pad_cat)
957
958ifeq ($(CONFIG_OF_SEPARATE),y)
959u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE
960	$(call if_changed,cat)
961endif
962endif
963
964u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
965	$(call if_changed,cat)
966
967#Add a target to create boot binary having SPL binary in PBI format
968#concatenated with u-boot binary. It is need by PowerPC SoC having
969#internal SRAM <= 512KB.
970MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
971		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
972
973spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
974	$(call if_changed,mkimage)
975
976OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
977			  --gap-fill=0xff
978
979u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl u-boot.bin FORCE
980	$(call if_changed,pad_cat)
981
982# PPC4xx needs the SPL at the end of the image, since the reset vector
983# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
984# and need to introduce a new build target with the full blown U-Boot
985# at the start padded up to the start of the SPL image. And then concat
986# the SPL image to the end.
987
988OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
989	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
990u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
991	$(call if_changed,pad_cat)
992
993# Create a new ELF from a raw binary file.  This is useful for arm64
994# where static relocation needs to be performed on the raw binary,
995# but certain simulators only accept an ELF file (but don't do the
996# relocation).
997# FIXME refactor dts/Makefile to share target/arch detection
998u-boot.elf: u-boot.bin
999	@$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
1000		$< u-boot-elf.o
1001	@$(LD) u-boot-elf.o -o $@ \
1002		--defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
1003		-Ttext=$(CONFIG_SYS_TEXT_BASE)
1004
1005# Rule to link u-boot
1006# May be overridden by arch/$(ARCH)/config.mk
1007quiet_cmd_u-boot__ ?= LD      $@
1008      cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1009      -T u-boot.lds $(u-boot-init)                             \
1010      --start-group $(u-boot-main) --end-group                 \
1011      $(PLATFORM_LIBS) -Map u-boot.map
1012
1013quiet_cmd_smap = GEN     common/system_map.o
1014cmd_smap = \
1015	smap=`$(call SYSTEM_MAP,u-boot) | \
1016		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1017	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1018		-c $(srctree)/common/system_map.c -o common/system_map.o
1019
1020u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds
1021	$(call if_changed,u-boot__)
1022ifeq ($(CONFIG_KALLSYMS),y)
1023	$(call cmd,smap)
1024	$(call cmd,u-boot__) common/system_map.o
1025endif
1026
1027# The actual objects are generated when descending,
1028# make sure no implicit rule kicks in
1029$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1030
1031# Handle descending into subdirectories listed in $(vmlinux-dirs)
1032# Preset locale variables to speed up the build process. Limit locale
1033# tweaks to this spot to avoid wrong language settings when running
1034# make menuconfig etc.
1035# Error messages still appears in the original language
1036
1037PHONY += $(u-boot-dirs)
1038$(u-boot-dirs): prepare scripts
1039	$(Q)$(MAKE) $(build)=$@
1040
1041tools: prepare
1042# The "tools" are needed early
1043$(filter-out tools, $(u-boot-dirs)): tools
1044# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1045# is "yes"), so compile examples after U-Boot is compiled.
1046examples: $(filter-out examples, $(u-boot-dirs))
1047
1048define filechk_uboot.release
1049	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1050endef
1051
1052# Store (new) UBOOTRELEASE string in include/config/uboot.release
1053include/config/uboot.release: include/config/auto.conf FORCE
1054	$(call filechk,uboot.release)
1055
1056
1057# Things we need to do before we recursively start building the kernel
1058# or the modules are listed in "prepare".
1059# A multi level approach is used. prepareN is processed before prepareN-1.
1060# archprepare is used in arch Makefiles and when processed asm symlink,
1061# version.h and scripts_basic is processed / created.
1062
1063# Listed in dependency order
1064PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1065
1066# prepare3 is used to check if we are building in a separate output directory,
1067# and if so do:
1068# 1) Check that make has not been executed in the kernel src $(srctree)
1069prepare3: include/config/uboot.release
1070ifneq ($(KBUILD_SRC),)
1071	@$(kecho) '  Using $(srctree) as source for U-Boot'
1072	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1073		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1074		echo >&2 "  in the '$(srctree)' directory.";\
1075		/bin/false; \
1076	fi;
1077endif
1078
1079# prepare2 creates a makefile if using a separate output directory
1080prepare2: prepare3 outputmakefile
1081
1082prepare1: prepare2 $(version_h) $(timestamp_h) \
1083                   include/config/auto.conf
1084ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
1085ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
1086	@echo >&2 "  Your architecture does not support generic board."
1087	@echo >&2 "  Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file."
1088	@/bin/false
1089endif
1090endif
1091ifeq ($(wildcard $(LDSCRIPT)),)
1092	@echo >&2 "  Could not find linker script."
1093	@/bin/false
1094endif
1095
1096archprepare: prepare1 scripts_basic
1097
1098prepare0: archprepare FORCE
1099	$(Q)$(MAKE) $(build)=.
1100
1101# All the preparing..
1102prepare: prepare0
1103
1104# Generate some files
1105# ---------------------------------------------------------------------------
1106
1107define filechk_version.h
1108	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1109	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1110	echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \
1111	echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; )
1112endef
1113
1114define filechk_timestamp.h
1115	(LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1116	LC_ALL=C date +'#define U_BOOT_TIME "%T"')
1117endef
1118
1119$(version_h): include/config/uboot.release FORCE
1120	$(call filechk,version.h)
1121
1122$(timestamp_h): $(srctree)/Makefile FORCE
1123	$(call filechk,timestamp.h)
1124
1125# ---------------------------------------------------------------------------
1126
1127PHONY += depend dep
1128depend dep:
1129	@echo '*** Warning: make $@ is unnecessary now.'
1130
1131# ---------------------------------------------------------------------------
1132quiet_cmd_cpp_lds = LDS     $@
1133cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1134		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1135
1136u-boot.lds: $(LDSCRIPT) prepare FORCE
1137	$(call if_changed_dep,cpp_lds)
1138
1139spl/u-boot-spl.bin: spl/u-boot-spl
1140	@:
1141spl/u-boot-spl: tools prepare
1142	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1143
1144spl/sunxi-spl.bin: spl/u-boot-spl
1145	@:
1146
1147tpl/u-boot-tpl.bin: tools prepare
1148	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1149
1150TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1151
1152FIND := find
1153FINDFLAGS := -L
1154
1155tags ctags:
1156		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1157						-name '*.[chS]' -print`
1158
1159etags:
1160		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1161						-name '*.[chS]' -print`
1162cscope:
1163		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1164						cscope.files
1165		cscope -b -q -k
1166
1167SYSTEM_MAP = \
1168		$(NM) $1 | \
1169		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1170		LC_ALL=C sort
1171System.map:	u-boot
1172		@$(call SYSTEM_MAP,$<) > $@
1173
1174checkdtc:
1175	@if test $(call dtc-version) -lt 0104; then \
1176		echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1177		false; \
1178	fi
1179
1180#########################################################################
1181
1182# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1183# R_AARCH64_RELATIVE (64-bit).
1184checkarmreloc: u-boot
1185	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1186		grep R_A | sort -u`"; \
1187	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1188		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1189		echo "$< contains unexpected relocations: $$RELOC"; \
1190		false; \
1191	fi
1192
1193env: scripts_basic
1194	$(Q)$(MAKE) $(build)=tools/$@
1195
1196tools-only: scripts_basic $(version_h) $(timestamp_h)
1197	$(Q)$(MAKE) $(build)=tools
1198
1199tools-all: export HOST_TOOLS_ALL=y
1200tools-all: env tools ;
1201
1202cross_tools: export CROSS_BUILD_TOOLS=y
1203cross_tools: tools ;
1204
1205.PHONY : CHANGELOG
1206CHANGELOG:
1207	git log --no-merges U-Boot-1_1_5.. | \
1208	unexpand -a | sed -e 's/\s\s*$$//' > $@
1209
1210include/license.h: tools/bin2header COPYING
1211	cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1212#########################################################################
1213
1214###
1215# Cleaning is done on three levels.
1216# make clean     Delete most generated files
1217#                Leave enough to build external modules
1218# make mrproper  Delete the current configuration, and all generated files
1219# make distclean Remove editor backup files, patch leftover files and the like
1220
1221# Directories & files removed with 'make clean'
1222CLEAN_DIRS  += $(MODVERDIR)
1223CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h
1224
1225# Directories & files removed with 'make clobber'
1226CLOBBER_DIRS  += $(foreach d, spl tpl, $(patsubst %,$d/%, \
1227			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1228CLOBBER_FILES += u-boot* MLO* SPL System.map
1229
1230# Directories & files removed with 'make mrproper'
1231MRPROPER_DIRS  += include/config include/generated spl tpl \
1232		  .tmp_objdiff
1233MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1234		  ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1235
1236# clean - Delete most, but leave enough to build external modules
1237#
1238clean: rm-dirs  := $(CLEAN_DIRS)
1239clean: rm-files := $(CLEAN_FILES)
1240
1241clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1242
1243clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1244
1245PHONY += $(clean-dirs) clean archclean
1246$(clean-dirs):
1247	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1248
1249# TODO: Do not use *.cfgtmp
1250clean: $(clean-dirs)
1251	$(call cmd,rmdirs)
1252	$(call cmd,rmfiles)
1253	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1254		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1255		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1256		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1257		-o -name '*.symtypes' -o -name 'modules.order' \
1258		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1259		-o -name '*.gcno' \) -type f -print | xargs rm -f
1260
1261# clobber
1262#
1263clobber: rm-dirs  := $(CLOBBER_DIRS)
1264clobber: rm-files := $(CLOBBER_FILES)
1265
1266PHONY += clobber
1267
1268clobber: clean
1269	$(call cmd,rmdirs)
1270	$(call cmd,rmfiles)
1271
1272# mrproper - Delete all generated files, including .config
1273#
1274mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1275mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1276mrproper-dirs      := $(addprefix _mrproper_,scripts)
1277
1278PHONY += $(mrproper-dirs) mrproper archmrproper
1279$(mrproper-dirs):
1280	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1281
1282mrproper: clobber $(mrproper-dirs)
1283	$(call cmd,rmdirs)
1284	$(call cmd,rmfiles)
1285	@rm -f arch/*/include/asm/arch
1286
1287# distclean
1288#
1289PHONY += distclean
1290
1291distclean: mrproper
1292	@find $(srctree) $(RCS_FIND_IGNORE) \
1293		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1294		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1295		-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1296		-o -name '*.pyc' \) \
1297		-type f -print | xargs rm -f
1298	@rm -f boards.cfg
1299
1300backup:
1301	F=`basename $(srctree)` ; cd .. ; \
1302	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1303
1304help:
1305	@echo  'Cleaning targets:'
1306	@echo  '  clean		  - Remove most generated files but keep the config and'
1307	@echo  '                    necessities for testing u-boot'
1308	@echo  '  clobber	  - Remove most generated files but keep the config'
1309	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1310	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1311	@echo  ''
1312	@echo  'Configuration targets:'
1313	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1314	@echo  ''
1315	@echo  'Other generic targets:'
1316	@echo  '  all		  - Build all necessary images depending on configuration'
1317	@echo  '  u-boot	  - Build the bare u-boot'
1318	@echo  '  dir/            - Build all files in dir and below'
1319	@echo  '  dir/file.[oisS] - Build specified target only'
1320	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1321	@echo  '                    (requires a recent binutils and recent build (System.map))'
1322	@echo  '  tags/ctags	  - Generate ctags file for editors'
1323	@echo  '  etags		  - Generate etags file for editors'
1324	@echo  '  cscope	  - Generate cscope index'
1325	@echo  '  ubootrelease	  - Output the release version string'
1326	@echo  '  ubootversion	  - Output the version stored in Makefile'
1327	@echo  ''
1328	@echo  'Static analysers'
1329	@echo  '  checkstack      - Generate a list of stack hogs'
1330	@echo  ''
1331	@echo  'Documentation targets:'
1332	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1333	@echo  ''
1334	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1335	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1336	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1337	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1338	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1339	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1340	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1341	@echo  '		1: warnings which may be relevant and do not occur too often'
1342	@echo  '		2: warnings which occur quite often but may still be relevant'
1343	@echo  '		3: more obscure warnings, can most likely be ignored'
1344	@echo  '		Multiple levels can be combined with W=12 or W=123'
1345	@echo  ''
1346	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1347	@echo  'For further info see the ./README file'
1348
1349
1350# Documentation targets
1351# ---------------------------------------------------------------------------
1352%docs: scripts_basic FORCE
1353	$(Q)$(MAKE) $(build)=scripts build_docproc
1354	$(Q)$(MAKE) $(build)=doc/DocBook $@
1355
1356# Dummies...
1357PHONY += prepare scripts
1358prepare: ;
1359scripts: ;
1360
1361endif #ifeq ($(config-targets),1)
1362endif #ifeq ($(mixed-targets),1)
1363
1364PHONY += checkstack ubootrelease ubootversion
1365
1366checkstack:
1367	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1368	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1369
1370ubootrelease:
1371	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1372
1373ubootversion:
1374	@echo $(UBOOTVERSION)
1375
1376# Single targets
1377# ---------------------------------------------------------------------------
1378# Single targets are compatible with:
1379# - build with mixed source and output
1380# - build with separate output dir 'make O=...'
1381# - external modules
1382#
1383#  target-dir => where to store outputfile
1384#  build-dir  => directory in kernel source tree to use
1385
1386ifeq ($(KBUILD_EXTMOD),)
1387        build-dir  = $(patsubst %/,%,$(dir $@))
1388        target-dir = $(dir $@)
1389else
1390        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1391        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1392        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1393endif
1394
1395%.s: %.c prepare scripts FORCE
1396	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1397%.i: %.c prepare scripts FORCE
1398	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1399%.o: %.c prepare scripts FORCE
1400	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1401%.lst: %.c prepare scripts FORCE
1402	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1403%.s: %.S prepare scripts FORCE
1404	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1405%.o: %.S prepare scripts FORCE
1406	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1407%.symtypes: %.c prepare scripts FORCE
1408	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1409
1410# Modules
1411/: prepare scripts FORCE
1412	$(cmd_crmodverdir)
1413	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1414	$(build)=$(build-dir)
1415%/: prepare scripts FORCE
1416	$(cmd_crmodverdir)
1417	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1418	$(build)=$(build-dir)
1419%.ko: prepare scripts FORCE
1420	$(cmd_crmodverdir)
1421	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1422	$(build)=$(build-dir) $(@:.ko=.o)
1423	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1424
1425# FIXME Should go into a make.lib or something
1426# ===========================================================================
1427
1428quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1429      cmd_rmdirs = rm -rf $(rm-dirs)
1430
1431quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1432      cmd_rmfiles = rm -f $(rm-files)
1433
1434# read all saved command lines
1435
1436targets := $(wildcard $(sort $(targets)))
1437cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1438
1439ifneq ($(cmd_files),)
1440  $(cmd_files): ;	# Do not try to update included dependency files
1441  include $(cmd_files)
1442endif
1443
1444# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1445# Usage:
1446# $(Q)$(MAKE) $(clean)=dir
1447clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1448
1449endif	# skip-makefile
1450
1451PHONY += FORCE
1452FORCE:
1453
1454# Declare the contents of the .PHONY variable as phony.  We keep that
1455# information in a variable so we can use it in if_changed and friends.
1456.PHONY: $(PHONY)
1457