xref: /openbmc/u-boot/Makefile (revision a96a0e6153e3d9071c1a4516bf3e94c4cd96c77c)
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 = 04
10SUBLEVEL =
11EXTRAVERSION = -rc3
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 := $(O)
110endif
111
112ifeq ("$(origin W)", "command line")
113  export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
114endif
115
116# That's our default target when none is given on the command line
117PHONY := _all
118_all:
119
120# Cancel implicit rules on top Makefile
121$(CURDIR)/Makefile Makefile: ;
122
123ifneq ($(KBUILD_OUTPUT),)
124# Invoke a second make in the output directory, passing relevant variables
125# check that the output directory actually exists
126saved-output := $(KBUILD_OUTPUT)
127KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
128								&& /bin/pwd)
129$(if $(KBUILD_OUTPUT),, \
130     $(error output directory "$(saved-output)" does not exist))
131
132PHONY += $(MAKECMDGOALS) sub-make
133
134$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
135	@:
136
137sub-make: FORCE
138	$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
139	KBUILD_SRC=$(CURDIR) \
140	KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
141	$(filter-out _all sub-make,$(MAKECMDGOALS))
142
143# Leave processing to above invocation of make
144skip-makefile := 1
145endif # ifneq ($(KBUILD_OUTPUT),)
146endif # ifeq ($(KBUILD_SRC),)
147
148# We process the rest of the Makefile if this is the final invocation of make
149ifeq ($(skip-makefile),)
150
151# If building an external module we do not care about the all: rule
152# but instead _all depend on modules
153PHONY += all
154ifeq ($(KBUILD_EXTMOD),)
155_all: all
156else
157_all: modules
158endif
159
160srctree		:= $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
161objtree		:= $(CURDIR)
162src		:= $(srctree)
163obj		:= $(objtree)
164
165VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
166
167export srctree objtree VPATH
168
169MKCONFIG	:= $(srctree)/mkconfig
170export MKCONFIG
171
172# Make sure CDPATH settings don't interfere
173unexport CDPATH
174
175#########################################################################
176
177HOSTARCH := $(shell uname -m | \
178	sed -e s/i.86/x86/ \
179	    -e s/sun4u/sparc64/ \
180	    -e s/arm.*/arm/ \
181	    -e s/sa110/arm/ \
182	    -e s/ppc64/powerpc/ \
183	    -e s/ppc/powerpc/ \
184	    -e s/macppc/powerpc/\
185	    -e s/sh.*/sh/)
186
187HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
188	    sed -e 's/\(cygwin\).*/cygwin/')
189
190export	HOSTARCH HOSTOS
191
192# Deal with colliding definitions from tcsh etc.
193VENDOR=
194
195#########################################################################
196
197# set default to nothing for native builds
198ifeq ($(HOSTARCH),$(ARCH))
199CROSS_COMPILE ?=
200endif
201
202# SHELL used by kbuild
203CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
204	  else if [ -x /bin/bash ]; then echo /bin/bash; \
205	  else echo sh; fi ; fi)
206
207HOSTCC       = gcc
208HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
209
210ifeq ($(HOSTOS),cygwin)
211HOSTCFLAGS	+= -ansi
212endif
213
214# Mac OS X / Darwin's C preprocessor is Apple specific.  It
215# generates numerous errors and warnings.  We want to bypass it
216# and use GNU C's cpp.	To do this we pass the -traditional-cpp
217# option to the compiler.  Note that the -traditional-cpp flag
218# DOES NOT have the same semantics as GNU C's flag, all it does
219# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
220#
221# Apple's linker is similar, thanks to the new 2 stage linking
222# multiple symbol definitions are treated as errors, hence the
223# -multiply_defined suppress option to turn off this error.
224#
225ifeq ($(HOSTOS),darwin)
226# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
227DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
228DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
229
230os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
231	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
232
233# Snow Leopards build environment has no longer restrictions as described above
234HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
235HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
236HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
237endif
238
239# Decide whether to build built-in, modular, or both.
240# Normally, just do built-in.
241
242KBUILD_MODULES :=
243KBUILD_BUILTIN := 1
244
245#	If we have only "make modules", don't compile built-in objects.
246#	When we're building modules with modversions, we need to consider
247#	the built-in objects during the descend as well, in order to
248#	make sure the checksums are up to date before we record them.
249
250ifeq ($(MAKECMDGOALS),modules)
251  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
252endif
253
254#	If we have "make <whatever> modules", compile modules
255#	in addition to whatever we do anyway.
256#	Just "make" or "make all" shall build modules as well
257
258# U-Boot does not need modules
259#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
260#  KBUILD_MODULES := 1
261#endif
262
263#ifeq ($(MAKECMDGOALS),)
264#  KBUILD_MODULES := 1
265#endif
266
267export KBUILD_MODULES KBUILD_BUILTIN
268export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
269
270# Beautify output
271# ---------------------------------------------------------------------------
272#
273# Normally, we echo the whole command before executing it. By making
274# that echo $($(quiet)$(cmd)), we now have the possibility to set
275# $(quiet) to choose other forms of output instead, e.g.
276#
277#         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
278#         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
279#
280# If $(quiet) is empty, the whole command will be printed.
281# If it is set to "quiet_", only the short version will be printed.
282# If it is set to "silent_", nothing will be printed at all, since
283# the variable $(silent_cmd_cc_o_c) doesn't exist.
284#
285# A simple variant is to prefix commands with $(Q) - that's useful
286# for commands that shall be hidden in non-verbose mode.
287#
288#	$(Q)ln $@ :<
289#
290# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
291# If KBUILD_VERBOSE equals 1 then the above command is displayed.
292
293ifeq ($(KBUILD_VERBOSE),1)
294  quiet =
295  Q =
296else
297  quiet=quiet_
298  Q = @
299endif
300
301# If the user is running make -s (silent mode), suppress echoing of
302# commands
303
304ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
305  quiet=silent_
306endif
307
308export quiet Q KBUILD_VERBOSE
309
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
336RANLIB		= $(CROSS_COMPILE)RANLIB
337DTC		= dtc
338CHECK		= sparse
339
340CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
341		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
342
343KBUILD_CPPFLAGS := -D__KERNEL__
344
345KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
346		   -Wno-format-security \
347		   -fno-builtin -ffreestanding
348KBUILD_AFLAGS   := -D__ASSEMBLY__
349
350# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
351UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
352UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
353
354export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
355export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
356export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
357export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
358export MAKE AWK
359export DTC CHECK CHECKFLAGS
360
361export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
362export KBUILD_CFLAGS KBUILD_AFLAGS
363
364# When compiling out-of-tree modules, put MODVERDIR in the module
365# tree rather than in the kernel tree. The kernel tree might
366# even be read-only.
367export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
368
369# Files to ignore in find ... statements
370
371RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
372		   -o -name .pc -o -name .hg -o -name .git \) -prune -o
373export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
374			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
375
376# ===========================================================================
377# Rules shared between *config targets and build targets
378
379# Basic helpers built in scripts/
380PHONY += scripts_basic
381scripts_basic:
382	$(Q)$(MAKE) $(build)=scripts/basic
383	$(Q)rm -f .tmp_quiet_recordmcount
384
385# To avoid any implicit rule to kick in, define an empty command.
386scripts/basic/%: scripts_basic ;
387
388PHONY += outputmakefile
389# outputmakefile generates a Makefile in the output directory, if using a
390# separate output directory. This allows convenient use of make in the
391# output directory.
392outputmakefile:
393ifneq ($(KBUILD_SRC),)
394	$(Q)ln -fsn $(srctree) source
395	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
396	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
397endif
398
399# To make sure we do not include .config for any of the *config targets
400# catch them early, and hand them over to scripts/kconfig/Makefile
401# It is allowed to specify more targets when calling make, including
402# mixing *config targets and build targets.
403# For example 'make oldconfig all'.
404# Detect when mixed targets is specified, and make a second invocation
405# of make so .config is not included in this case either (for *config).
406
407version_h := include/generated/version_autogenerated.h
408timestamp_h := include/generated/timestamp_autogenerated.h
409
410no-dot-config-targets := clean clobber mrproper distclean \
411			 help %docs check% coccicheck \
412			 ubootversion backup tools-only
413
414config-targets := 0
415mixed-targets  := 0
416dot-config     := 1
417
418ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
419	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
420		dot-config := 0
421	endif
422endif
423
424ifeq ($(KBUILD_EXTMOD),)
425        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
426                config-targets := 1
427                ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
428                        mixed-targets := 1
429                endif
430        endif
431endif
432
433ifeq ($(mixed-targets),1)
434# ===========================================================================
435# We're called with mixed targets (*config and build targets).
436# Handle them one by one.
437
438PHONY += $(MAKECMDGOALS) build-one-by-one
439
440$(MAKECMDGOALS): build-one-by-one
441	@:
442
443build-one-by-one:
444	$(Q)set -e; \
445	for i in $(MAKECMDGOALS); do \
446		$(MAKE) -f $(srctree)/Makefile $$i; \
447	done
448
449else
450ifeq ($(config-targets),1)
451# ===========================================================================
452# *config targets only - make sure prerequisites are updated, and descend
453# in scripts/kconfig to make the *config target
454
455# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
456# KBUILD_DEFCONFIG may point out an alternative default configuration
457# used for 'make defconfig'
458
459%_config:: outputmakefile
460	@$(MKCONFIG) -A $(@:_config=)
461
462else
463# ===========================================================================
464# Build targets only - this includes vmlinux, arch specific targets, clean
465# targets and others. In general all targets except *config targets.
466
467# load ARCH, BOARD, and CPU configuration
468-include include/config.mk
469
470ifeq ($(dot-config),1)
471# Read in config
472-include include/autoconf.mk
473-include include/autoconf.mk.dep
474
475# load other configuration
476include $(srctree)/config.mk
477
478ifeq ($(wildcard include/config.mk),)
479$(error "System not configured - see README")
480endif
481
482# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
483# that (or fail if absent).  Otherwise, search for a linker script in a
484# standard location.
485
486ifndef LDSCRIPT
487	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
488	ifdef CONFIG_SYS_LDSCRIPT
489		# need to strip off double quotes
490		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
491	endif
492endif
493
494# If there is no specified link script, we look in a number of places for it
495ifndef LDSCRIPT
496	ifeq ($(CONFIG_NAND_U_BOOT),y)
497		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-nand.lds
498		ifeq ($(wildcard $(LDSCRIPT)),)
499			LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-nand.lds
500		endif
501	endif
502	ifeq ($(wildcard $(LDSCRIPT)),)
503		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
504	endif
505	ifeq ($(wildcard $(LDSCRIPT)),)
506		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
507	endif
508	ifeq ($(wildcard $(LDSCRIPT)),)
509		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
510	endif
511endif
512
513else
514
515
516endif # $(dot-config)
517
518KBUILD_CFLAGS += -Os #-fomit-frame-pointer
519
520ifdef BUILD_TAG
521KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
522endif
523
524KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
525
526KBUILD_CFLAGS	+= -g
527# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
528# option to the assembler.
529KBUILD_AFLAGS	+= -g
530
531# Report stack usage if supported
532ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
533	KBUILD_CFLAGS += -fstack-usage
534endif
535
536KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
537
538# turn jbsr into jsr for m68k
539ifeq ($(ARCH),m68k)
540ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
541KBUILD_AFLAGS += -Wa,-gstabs,-S
542endif
543endif
544
545ifneq ($(CONFIG_SYS_TEXT_BASE),)
546KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
547endif
548
549export CONFIG_SYS_TEXT_BASE
550
551# Use UBOOTINCLUDE when you must reference the include/ directory.
552# Needed to be compatible with the O= option
553UBOOTINCLUDE    := \
554		-Iinclude \
555		$(if $(KBUILD_SRC), -I$(srctree)/include) \
556		-I$(srctree)/arch/$(ARCH)/include
557
558NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
559CHECKFLAGS     += $(NOSTDINC_FLAGS)
560
561# FIX ME
562cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
563							$(NOSTDINC_FLAGS)
564c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
565
566#########################################################################
567# U-Boot objects....order is important (i.e. start must be first)
568
569head-y := $(CPUDIR)/start.o
570head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
571head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
572
573HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
574
575libs-y += lib/
576libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
577libs-y += $(CPUDIR)/
578ifdef SOC
579libs-y += $(CPUDIR)/$(SOC)/
580endif
581libs-$(CONFIG_OF_EMBED) += dts/
582libs-y += arch/$(ARCH)/lib/
583libs-y += fs/
584libs-y += net/
585libs-y += disk/
586libs-y += drivers/
587libs-$(CONFIG_DM) += drivers/core/
588libs-y += drivers/dma/
589libs-y += drivers/gpio/
590libs-y += drivers/i2c/
591libs-y += drivers/input/
592libs-y += drivers/mmc/
593libs-y += drivers/mtd/
594libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
595libs-y += drivers/mtd/onenand/
596libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
597libs-y += drivers/mtd/spi/
598libs-y += drivers/net/
599libs-y += drivers/net/phy/
600libs-y += drivers/pci/
601libs-y += drivers/power/ \
602	drivers/power/fuel_gauge/ \
603	drivers/power/mfd/ \
604	drivers/power/pmic/ \
605	drivers/power/battery/
606libs-y += drivers/spi/
607libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
608libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
609libs-y += drivers/serial/
610libs-y += drivers/usb/eth/
611libs-y += drivers/usb/gadget/
612libs-y += drivers/usb/host/
613libs-y += drivers/usb/musb/
614libs-y += drivers/usb/musb-new/
615libs-y += drivers/usb/phy/
616libs-y += drivers/usb/ulpi/
617libs-y += common/
618libs-y += lib/libfdt/
619libs-$(CONFIG_API) += api/
620libs-$(CONFIG_HAS_POST) += post/
621libs-y += test/
622libs-y += test/dm/
623libs-$(CONFIG_DM_DEMO) += drivers/demo/
624
625ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
626libs-y += arch/$(ARCH)/imx-common/
627endif
628
629libs-$(CONFIG_ARM) += arch/arm/cpu/
630libs-$(CONFIG_PPC) += arch/powerpc/cpu/
631
632libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
633
634libs-y := $(sort $(libs-y))
635
636u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
637
638u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
639
640libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
641
642u-boot-init := $(head-y)
643u-boot-main := $(libs-y)
644
645
646# Add GCC lib
647ifdef CONFIG_USE_PRIVATE_LIBGCC
648ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
649PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
650else
651PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc
652endif
653else
654PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
655endif
656PLATFORM_LIBS += $(PLATFORM_LIBGCC)
657export PLATFORM_LIBS
658
659# Special flags for CPP when processing the linker script.
660# Pass the version down so we can handle backwards compatibility
661# on the fly.
662LDPPFLAGS += \
663	-include $(srctree)/include/u-boot/u-boot.lds.h \
664	-DCPUDIR=$(CPUDIR) \
665	$(shell $(LD) --version | \
666	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
667
668#########################################################################
669#########################################################################
670
671ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
672BOARD_SIZE_CHECK = \
673	@actual=`wc -c $@ | awk '{print $$1}'`; \
674	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
675	if test $$actual -gt $$limit; then \
676		echo "$@ exceeds file size limit:" >&2 ; \
677		echo "  limit:  $$limit bytes" >&2 ; \
678		echo "  actual: $$actual bytes" >&2 ; \
679		echo "  excess: $$((actual - limit)) bytes" >&2; \
680		exit 1; \
681	fi
682else
683BOARD_SIZE_CHECK =
684endif
685
686# Statically apply RELA-style relocations (currently arm64 only)
687ifneq ($(CONFIG_STATIC_RELA),)
688# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
689DO_STATIC_RELA = \
690	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
691	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
692	tools/relocate-rela $(2) $(3) $$start $$end
693else
694DO_STATIC_RELA =
695endif
696
697# Always append ALL so that arch config.mk's can add custom ones
698ALL-y += u-boot.srec u-boot.bin System.map
699
700ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin
701ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
702ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
703ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
704ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
705ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
706ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
707ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
708ifneq ($(CONFIG_SPL_TARGET),)
709ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
710endif
711ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
712
713# enable combined SPL/u-boot/dtb rules for tegra
714ifneq ($(CONFIG_TEGRA),)
715ifeq ($(CONFIG_SPL),y)
716ifeq ($(CONFIG_OF_SEPARATE),y)
717ALL-y += u-boot-dtb-tegra.bin
718else
719ALL-y += u-boot-nodtb-tegra.bin
720endif
721endif
722endif
723
724LDFLAGS_u-boot += $(LDFLAGS_FINAL)
725ifneq ($(CONFIG_SYS_TEXT_BASE),)
726LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
727endif
728
729quiet_cmd_objcopy = OBJCOPY $@
730cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
731
732quiet_cmd_mkimage = MKIMAGE $@
733cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
734	$(if $(KBUILD_VERBOSE:1=), >/dev/null)
735
736quiet_cmd_cat = CAT     $@
737cmd_cat = cat $(filter-out $(PHONY), $^) > $@
738
739append = cat $(filter-out $< $(PHONY), $^) >> $@
740
741quiet_cmd_pad_cat = CAT     $@
742cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
743
744all:		$(ALL-y)
745
746PHONY += dtbs
747dtbs dts/dt.dtb: checkdtc u-boot
748	$(Q)$(MAKE) $(build)=dts dtbs
749
750u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE
751	$(call if_changed,cat)
752
753quiet_cmd_copy = COPY    $@
754      cmd_copy = cp $< $@
755
756u-boot.dtb: dts/dt.dtb
757	$(call cmd,copy)
758
759OBJCOPYFLAGS_u-boot.hex := -O ihex
760
761OBJCOPYFLAGS_u-boot.srec := -O srec
762
763u-boot.hex u-boot.srec: u-boot FORCE
764	$(call if_changed,objcopy)
765
766OBJCOPYFLAGS_u-boot.bin := -O binary
767
768u-boot.bin: u-boot FORCE
769	$(call if_changed,objcopy)
770	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
771	$(BOARD_SIZE_CHECK)
772
773u-boot.ldr:	u-boot
774		$(CREATE_LDR_ENV)
775		$(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
776		$(BOARD_SIZE_CHECK)
777
778OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
779
780OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
781
782u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
783	$(call if_changed,objcopy)
784
785#
786# U-Boot entry point, needed for booting of full-blown U-Boot
787# from the SPL U-Boot version.
788#
789ifndef CONFIG_SYS_UBOOT_START
790CONFIG_SYS_UBOOT_START := 0
791endif
792
793MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
794	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
795	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
796
797MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
798	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
799
800MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
801		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
802
803u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
804	$(call if_changed,mkimage)
805
806u-boot.imx: u-boot.bin
807	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
808
809u-boot.sha1:	u-boot.bin
810		tools/ubsha1 u-boot.bin
811
812u-boot.dis:	u-boot
813		$(OBJDUMP) -d $< > $@
814
815ifdef CONFIG_TPL
816SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
817else
818SPL_PAYLOAD := u-boot.bin
819endif
820
821OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
822				   --pad-to=$(CONFIG_SPL_PAD_TO)
823u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
824	$(call if_changed,pad_cat)
825
826OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
827				   --pad-to=$(CONFIG_TPL_PAD_TO)
828tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
829	$(call if_changed,pad_cat)
830
831SPL: spl/u-boot-spl.bin FORCE
832	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
833
834u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
835	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
836
837MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
838
839u-boot.ubl: u-boot-with-spl.bin FORCE
840	$(call if_changed,mkimage)
841
842MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
843	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
844	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
845spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
846	$(call if_changed,mkimage)
847
848OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_MAX_SIZE)
849u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
850	$(call if_changed,pad_cat)
851
852u-boot.sb: u-boot.bin spl/u-boot-spl.bin
853	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
854
855# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
856# Both images are created using mkimage (crc etc), so that the ROM
857# bootloader can check its integrity. Padding needs to be done to the
858# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
859# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
860# The resulting image containing both U-Boot images is called u-boot.spr
861MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
862	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
863spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
864	$(call if_changed,mkimage)
865
866OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
867			  --gap-fill=0xff
868u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
869	$(call if_changed,pad_cat)
870
871ifneq ($(CONFIG_TEGRA),)
872OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
873u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
874	$(call if_changed,pad_cat)
875
876ifeq ($(CONFIG_OF_SEPARATE),y)
877u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE
878	$(call if_changed,cat)
879endif
880endif
881
882u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
883	$(call if_changed,cat)
884
885# PPC4xx needs the SPL at the end of the image, since the reset vector
886# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
887# and need to introduce a new build target with the full blown U-Boot
888# at the start padded up to the start of the SPL image. And then concat
889# the SPL image to the end.
890
891OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
892	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
893u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
894	$(call if_changed,pad_cat)
895
896# Create a new ELF from a raw binary file.  This is useful for arm64
897# where static relocation needs to be performed on the raw binary,
898# but certain simulators only accept an ELF file (but don't do the
899# relocation).
900# FIXME refactor dts/Makefile to share target/arch detection
901u-boot.elf: u-boot.bin
902	@$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
903		$< u-boot-elf.o
904	@$(LD) u-boot-elf.o -o $@ \
905		--defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
906		-Ttext=$(CONFIG_SYS_TEXT_BASE)
907
908# Rule to link u-boot
909# May be overridden by arch/$(ARCH)/config.mk
910quiet_cmd_u-boot__ ?= LD      $@
911      cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
912      -T u-boot.lds $(u-boot-init)                             \
913      --start-group $(u-boot-main) --end-group                 \
914      $(PLATFORM_LIBS) -Map u-boot.map
915
916u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds
917	$(call if_changed,u-boot__)
918ifeq ($(CONFIG_KALLSYMS),y)
919	smap=`$(call SYSTEM_MAP,u-boot) | \
920		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
921	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
922		-c $(srctree)/common/system_map.c -o common/system_map.o
923	$(call cmd,u-boot__) common/system_map.o
924endif
925
926# The actual objects are generated when descending,
927# make sure no implicit rule kicks in
928$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
929
930# Handle descending into subdirectories listed in $(vmlinux-dirs)
931# Preset locale variables to speed up the build process. Limit locale
932# tweaks to this spot to avoid wrong language settings when running
933# make menuconfig etc.
934# Error messages still appears in the original language
935
936PHONY += $(u-boot-dirs)
937$(u-boot-dirs): prepare scripts
938	$(Q)$(MAKE) $(build)=$@
939
940tools: prepare
941# The "tools" are needed early
942$(filter-out tools, $(u-boot-dirs)): tools
943# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
944# is "yes"), so compile examples after U-Boot is compiled.
945examples: $(filter-out examples, $(u-boot-dirs))
946
947define filechk_uboot.release
948	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
949endef
950
951# Store (new) UBOOTRELEASE string in include/config/uboot.release
952include/config/uboot.release: Makefile FORCE
953	$(call filechk,uboot.release)
954
955
956# Things we need to do before we recursively start building the kernel
957# or the modules are listed in "prepare".
958# A multi level approach is used. prepareN is processed before prepareN-1.
959# archprepare is used in arch Makefiles and when processed asm symlink,
960# version.h and scripts_basic is processed / created.
961
962# Listed in dependency order
963PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
964
965# prepare3 is used to check if we are building in a separate output directory,
966# and if so do:
967# 1) Check that make has not been executed in the kernel src $(srctree)
968prepare3: include/config/uboot.release
969ifneq ($(KBUILD_SRC),)
970	@$(kecho) '  Using $(srctree) as source for u-boot'
971	$(Q)if [ -f $(srctree)/include/config.mk ]; then \
972		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
973		echo >&2 "  in the '$(srctree)' directory.";\
974		/bin/false; \
975	fi;
976endif
977
978# prepare2 creates a makefile if using a separate output directory
979prepare2: prepare3 outputmakefile
980
981prepare1: prepare2 $(version_h) $(timestamp_h)
982ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
983ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
984	@echo >&2 "  Your architecture does not support generic board."
985	@echo >&2 "  Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file."
986	@/bin/false
987endif
988endif
989ifeq ($(wildcard $(LDSCRIPT)),)
990	@echo >&2 "  Could not find linker script."
991	@/bin/false
992endif
993
994archprepare: prepare1 scripts_basic
995
996prepare0: archprepare FORCE
997	$(Q)$(MAKE) $(build)=.
998
999# All the preparing..
1000prepare: prepare0
1001
1002# Generate some files
1003# ---------------------------------------------------------------------------
1004
1005define filechk_version.h
1006	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1007	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1008	echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \
1009	echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; )
1010endef
1011
1012define filechk_timestamp.h
1013	(LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1014	LC_ALL=C date +'#define U_BOOT_TIME "%T"')
1015endef
1016
1017$(version_h): include/config/uboot.release FORCE
1018	$(call filechk,version.h)
1019
1020$(timestamp_h): $(srctree)/Makefile FORCE
1021	$(call filechk,timestamp.h)
1022
1023#
1024# Auto-generate the autoconf.mk file (which is included by all makefiles)
1025#
1026# This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
1027# the dep file is only include in this top level makefile to determine when
1028# to regenerate the autoconf.mk file.
1029
1030quiet_cmd_autoconf_dep = GEN     $@
1031      cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \
1032	-MQ include/autoconf.mk $(srctree)/include/common.h > $@ || rm $@
1033
1034include/autoconf.mk.dep: include/config.h include/common.h
1035	$(call cmd,autoconf_dep)
1036
1037quiet_cmd_autoconf = GEN     $@
1038      cmd_autoconf = \
1039	$(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
1040	sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
1041	rm $@.tmp
1042
1043include/autoconf.mk: include/config.h
1044	$(call cmd,autoconf)
1045
1046# ---------------------------------------------------------------------------
1047
1048PHONY += depend dep
1049depend dep:
1050	@echo '*** Warning: make $@ is unnecessary now.'
1051
1052# ---------------------------------------------------------------------------
1053quiet_cmd_cpp_lds = LDS     $@
1054cmd_cpp_lds = $(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ \
1055		-x assembler-with-cpp -P -o $@ $<
1056
1057u-boot.lds: $(LDSCRIPT) prepare FORCE
1058	$(call if_changed,cpp_lds)
1059
1060PHONY += nand_spl
1061nand_spl: prepare
1062	$(Q)$(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all
1063	@echo >&2
1064	@echo >&2 "==================== WARNING ====================="
1065	@echo >&2 "nand_spl will not be included in v2014.07 release."
1066	@echo >&2 "Please switch over to SPL."
1067	@echo >&2 "Otherwise, this board will be removed."
1068	@echo >&2 "=================================================="
1069	@echo >&2
1070
1071nand_spl/u-boot-spl-16k.bin: nand_spl
1072	@:
1073
1074u-boot-nand.bin: nand_spl/u-boot-spl-16k.bin u-boot.bin FORCE
1075	$(call if_changed,cat)
1076
1077spl/u-boot-spl.bin: spl/u-boot-spl
1078	@:
1079spl/u-boot-spl: tools prepare
1080	$(Q)$(MAKE) obj=spl -f $(srctree)/spl/Makefile all
1081
1082tpl/u-boot-tpl.bin: tools prepare
1083	$(Q)$(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y
1084
1085TAG_SUBDIRS := $(u-boot-dirs) include
1086
1087FIND := find
1088FINDFLAGS := -L
1089
1090tags ctags:
1091		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1092						-name '*.[chS]' -print`
1093
1094etags:
1095		etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1096						-name '*.[chS]' -print`
1097cscope:
1098		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1099						cscope.files
1100		cscope -b -q -k
1101
1102SYSTEM_MAP = \
1103		$(NM) $1 | \
1104		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1105		LC_ALL=C sort
1106System.map:	u-boot
1107		@$(call SYSTEM_MAP,$<) > $@
1108
1109checkdtc:
1110	@if test $(call dtc-version) -lt 0104; then \
1111		echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1112		false; \
1113	fi
1114
1115#########################################################################
1116
1117# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1118# R_AARCH64_RELATIVE (64-bit).
1119checkarmreloc: u-boot
1120	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1121		grep R_A | sort -u`"; \
1122	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1123		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1124		echo "$< contains unexpected relocations: $$RELOC"; \
1125		false; \
1126	fi
1127
1128env: scripts_basic
1129	$(Q)$(MAKE) $(build)=tools/$@
1130
1131tools-only: scripts_basic $(version_h) $(timestamp_h)
1132	$(Q)$(MAKE) $(build)=tools
1133
1134tools-all: export HOST_TOOLS_ALL=y
1135tools-all: env tools ;
1136
1137cross_tools: export CROSS_BUILD_TOOLS=y
1138cross_tools: tools ;
1139
1140.PHONY : CHANGELOG
1141CHANGELOG:
1142	git log --no-merges U-Boot-1_1_5.. | \
1143	unexpand -a | sed -e 's/\s\s*$$//' > $@
1144
1145include/license.h: tools/bin2header COPYING
1146	cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1147#########################################################################
1148
1149###
1150# Cleaning is done on three levels.
1151# make clean     Delete most generated files
1152#                Leave enough to build external modules
1153# make mrproper  Delete the current configuration, and all generated files
1154# make distclean Remove editor backup files, patch leftover files and the like
1155
1156# Directories & files removed with 'make clean'
1157CLEAN_DIRS  += $(MODVERDIR)
1158CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h \
1159	       include/autoconf.mk* include/spl-autoconf.mk \
1160	       include/tpl-autoconf.mk
1161
1162# Directories & files removed with 'make clobber'
1163CLOBBER_DIRS  += $(patsubst %,spl/%, $(filter-out Makefile, \
1164		 $(shell ls -1 spl 2>/dev/null))) \
1165		 tpl
1166CLOBBER_FILES += u-boot* MLO* SPL System.map nand_spl/u-boot*
1167
1168# Directories & files removed with 'make mrproper'
1169MRPROPER_DIRS  += include/config include/generated
1170MRPROPER_FILES += .config .config.old \
1171		  tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1172		  include/config.h include/config.mk
1173
1174# clean - Delete most, but leave enough to build external modules
1175#
1176clean: rm-dirs  := $(CLEAN_DIRS)
1177clean: rm-files := $(CLEAN_FILES)
1178
1179clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1180
1181clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1182
1183PHONY += $(clean-dirs) clean archclean
1184$(clean-dirs):
1185	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1186
1187# TODO: Do not use *.cfgtmp
1188clean: $(clean-dirs)
1189	$(call cmd,rmdirs)
1190	$(call cmd,rmfiles)
1191	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1192		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1193		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1194		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1195		-o -name '*.symtypes' -o -name 'modules.order' \
1196		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1197		-o -name '*.gcno' \) -type f -print | xargs rm -f
1198	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1199		-path './nand_spl/*' -type l -print | xargs rm -f
1200
1201# clobber
1202#
1203clobber: rm-dirs  := $(CLOBBER_DIRS)
1204clobber: rm-files := $(CLOBBER_FILES)
1205
1206PHONY += clobber
1207
1208clobber: clean
1209	$(call cmd,rmdirs)
1210	$(call cmd,rmfiles)
1211
1212# mrproper - Delete all generated files, including .config
1213#
1214mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1215mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1216mrproper-dirs      := $(addprefix _mrproper_,scripts)
1217
1218PHONY += $(mrproper-dirs) mrproper archmrproper
1219$(mrproper-dirs):
1220	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1221
1222mrproper: clobber $(mrproper-dirs)
1223	$(call cmd,rmdirs)
1224	$(call cmd,rmfiles)
1225	@rm -f arch/*/include/asm/arch arch/*/include/asm/proc
1226
1227# distclean
1228#
1229PHONY += distclean
1230
1231distclean: mrproper
1232	@find $(srctree) $(RCS_FIND_IGNORE) \
1233		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1234		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1235		-o -name '.*.rej' -o -name '*.pyc' \
1236		-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
1237		-type f -print | xargs rm -f
1238
1239backup:
1240	F=`basename $(srctree)` ; cd .. ; \
1241	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1242
1243help:
1244	@echo  'Cleaning targets:'
1245	@echo  '  clean		  - Remove most generated files but keep the config and'
1246	@echo  '                    necessities for testing u-boot'
1247	@echo  '  clobber	  - Remove most generated files but keep the config'
1248	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1249	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1250	@echo  ''
1251# uncomment after adding Kconfig feature
1252#	@echo  'Configuration targets:'
1253#	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1254#	@echo  ''
1255	@echo  'Other generic targets:'
1256	@echo  '  all		  - Build all necessary images depending on configuration'
1257	@echo  '  u-boot	  - Build the bare u-boot'
1258	@echo  '  dir/            - Build all files in dir and below'
1259	@echo  '  dir/file.[oisS] - Build specified target only'
1260	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1261	@echo  '                    (requires a recent binutils and recent build (System.map))'
1262	@echo  '  tags/TAGS	  - Generate tags file for editors'
1263	@echo  '  cscope	  - Generate cscope index'
1264	@echo  '  ubootrelease	  - Output the release version string'
1265	@echo  '  ubootversion	  - Output the version stored in Makefile'
1266	@echo  ''
1267	@echo  'Static analysers'
1268	@echo  '  checkstack      - Generate a list of stack hogs'
1269	@echo  ''
1270	@echo  'Documentation targets:'
1271	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1272	@echo  ''
1273	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1274	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1275	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1276	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1277	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1278	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1279	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1280	@echo  '		1: warnings which may be relevant and do not occur too often'
1281	@echo  '		2: warnings which occur quite often but may still be relevant'
1282	@echo  '		3: more obscure warnings, can most likely be ignored'
1283	@echo  '		Multiple levels can be combined with W=12 or W=123'
1284	@echo  ''
1285	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1286	@echo  'For further info see the ./README file'
1287
1288
1289# Documentation targets
1290# ---------------------------------------------------------------------------
1291%docs: scripts_basic FORCE
1292	$(Q)$(MAKE) $(build)=scripts build_docproc
1293	$(Q)$(MAKE) $(build)=doc/DocBook $@
1294
1295# Dummies...
1296PHONY += prepare scripts
1297prepare: ;
1298scripts: ;
1299
1300endif #ifeq ($(config-targets),1)
1301endif #ifeq ($(mixed-targets),1)
1302
1303PHONY += checkstack ubootrelease ubootversion
1304
1305checkstack:
1306	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1307	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1308
1309ubootrelease:
1310	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1311
1312ubootversion:
1313	@echo $(UBOOTVERSION)
1314
1315# Single targets
1316# ---------------------------------------------------------------------------
1317# Single targets are compatible with:
1318# - build with mixed source and output
1319# - build with separate output dir 'make O=...'
1320# - external modules
1321#
1322#  target-dir => where to store outputfile
1323#  build-dir  => directory in kernel source tree to use
1324
1325ifeq ($(KBUILD_EXTMOD),)
1326        build-dir  = $(patsubst %/,%,$(dir $@))
1327        target-dir = $(dir $@)
1328else
1329        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1330        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1331        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1332endif
1333
1334%.s: %.c prepare scripts FORCE
1335	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1336%.i: %.c prepare scripts FORCE
1337	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1338%.o: %.c prepare scripts FORCE
1339	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1340%.lst: %.c prepare scripts FORCE
1341	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1342%.s: %.S prepare scripts FORCE
1343	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1344%.o: %.S prepare scripts FORCE
1345	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1346%.symtypes: %.c prepare scripts FORCE
1347	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1348
1349# Modules
1350/: prepare scripts FORCE
1351	$(cmd_crmodverdir)
1352	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1353	$(build)=$(build-dir)
1354%/: prepare scripts FORCE
1355	$(cmd_crmodverdir)
1356	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1357	$(build)=$(build-dir)
1358%.ko: prepare scripts FORCE
1359	$(cmd_crmodverdir)
1360	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1361	$(build)=$(build-dir) $(@:.ko=.o)
1362	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1363
1364# FIXME Should go into a make.lib or something
1365# ===========================================================================
1366
1367quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1368      cmd_rmdirs = rm -rf $(rm-dirs)
1369
1370quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1371      cmd_rmfiles = rm -f $(rm-files)
1372
1373# read all saved command lines
1374
1375targets := $(wildcard $(sort $(targets)))
1376cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1377
1378ifneq ($(cmd_files),)
1379  $(cmd_files): ;	# Do not try to update included dependency files
1380  include $(cmd_files)
1381endif
1382
1383# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1384# Usage:
1385# $(Q)$(MAKE) $(clean)=dir
1386clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1387
1388endif	# skip-makefile
1389
1390PHONY += FORCE
1391FORCE:
1392
1393# Declare the contents of the .PHONY variable as phony.  We keep that
1394# information in a variable so we can use it in if_changed and friends.
1395.PHONY: $(PHONY)
1396