xref: /openbmc/u-boot/Makefile (revision d7cbcc76) 
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 = 01
10SUBLEVEL =
11EXTRAVERSION =
12ifneq "$(SUBLEVEL)" ""
13U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
14else
15U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL)$(EXTRAVERSION)
16endif
17TIMESTAMP_FILE = $(obj)include/generated/timestamp_autogenerated.h
18VERSION_FILE = $(obj)include/generated/version_autogenerated.h
19
20HOSTARCH := $(shell uname -m | \
21	sed -e s/i.86/x86/ \
22	    -e s/sun4u/sparc64/ \
23	    -e s/arm.*/arm/ \
24	    -e s/sa110/arm/ \
25	    -e s/ppc64/powerpc/ \
26	    -e s/ppc/powerpc/ \
27	    -e s/macppc/powerpc/\
28	    -e s/sh.*/sh/)
29
30HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
31	    sed -e 's/\(cygwin\).*/cygwin/')
32
33export	HOSTARCH HOSTOS
34
35# Deal with colliding definitions from tcsh etc.
36VENDOR=
37
38#########################################################################
39# Allow for silent builds
40ifeq (,$(findstring s,$(MAKEFLAGS)))
41XECHO = echo
42else
43XECHO = :
44endif
45
46#########################################################################
47#
48# U-boot build supports generating object files in a separate external
49# directory. Two use cases are supported:
50#
51# 1) Add O= to the make command line
52# 'make O=/tmp/build all'
53#
54# 2) Set environment variable BUILD_DIR to point to the desired location
55# 'export BUILD_DIR=/tmp/build'
56# 'make'
57#
58# The second approach can also be used with a MAKEALL script
59# 'export BUILD_DIR=/tmp/build'
60# './MAKEALL'
61#
62# Command line 'O=' setting overrides BUILD_DIR environment variable.
63#
64# When none of the above methods is used the local build is performed and
65# the object files are placed in the source directory.
66#
67
68ifeq ("$(origin O)", "command line")
69BUILD_DIR := $(O)
70endif
71
72# Call a source code checker (by default, "sparse") as part of the
73# C compilation.
74#
75# Use 'make C=1' to enable checking of re-compiled files.
76#
77# See the linux kernel file "Documentation/sparse.txt" for more details,
78# including where to get the "sparse" utility.
79
80ifdef C
81ifeq ("$(origin C)", "command line")
82CHECKSRC := $(C)
83endif
84endif
85ifndef CHECKSRC
86  CHECKSRC = 0
87endif
88export CHECKSRC
89
90ifneq ($(BUILD_DIR),)
91saved-output := $(BUILD_DIR)
92
93# Attempt to create a output directory.
94$(shell [ -d ${BUILD_DIR} ] || mkdir -p ${BUILD_DIR})
95
96# Verify if it was successful.
97BUILD_DIR := $(shell cd $(BUILD_DIR) && /bin/pwd)
98$(if $(BUILD_DIR),,$(error output directory "$(saved-output)" does not exist))
99endif # ifneq ($(BUILD_DIR),)
100
101OBJTREE		:= $(if $(BUILD_DIR),$(BUILD_DIR),$(CURDIR))
102SPLTREE		:= $(OBJTREE)/spl
103TPLTREE		:= $(OBJTREE)/tpl
104SRCTREE		:= $(CURDIR)
105TOPDIR		:= $(SRCTREE)
106LNDIR		:= $(OBJTREE)
107export	TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE
108
109MKCONFIG	:= $(SRCTREE)/mkconfig
110export MKCONFIG
111
112# $(obj) and (src) are defined in config.mk but here in main Makefile
113# we also need them before config.mk is included which is the case for
114# some targets like unconfig, clean, clobber, distclean, etc.
115ifneq ($(OBJTREE),$(SRCTREE))
116obj := $(OBJTREE)/
117src := $(SRCTREE)/
118else
119obj :=
120src :=
121endif
122export obj src
123
124# Make sure CDPATH settings don't interfere
125unexport CDPATH
126
127#########################################################################
128
129# The "tools" are needed early, so put this first
130# Don't include stuff already done in $(LIBS)
131# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
132# is "yes"), so compile examples after U-Boot is compiled.
133SUBDIR_TOOLS = tools
134SUBDIRS = $(SUBDIR_TOOLS)
135
136.PHONY : $(SUBDIRS) $(VERSION_FILE) $(TIMESTAMP_FILE)
137
138ifeq ($(obj)include/config.mk,$(wildcard $(obj)include/config.mk))
139
140# Include autoconf.mk before config.mk so that the config options are available
141# to all top level build files.  We need the dummy all: target to prevent the
142# dependency target in autoconf.mk.dep from being the default.
143all:
144sinclude $(obj)include/autoconf.mk.dep
145sinclude $(obj)include/autoconf.mk
146
147SUBDIR_EXAMPLES-y := examples/standalone
148SUBDIR_EXAMPLES-$(CONFIG_API) += examples/api
149ifndef CONFIG_SANDBOX
150SUBDIRS += $(SUBDIR_EXAMPLES-y)
151endif
152
153# load ARCH, BOARD, and CPU configuration
154include $(obj)include/config.mk
155export	ARCH CPU BOARD VENDOR SOC
156
157# set default to nothing for native builds
158ifeq ($(HOSTARCH),$(ARCH))
159CROSS_COMPILE ?=
160endif
161
162# load other configuration
163include $(TOPDIR)/config.mk
164
165# Targets which don't build the source code
166NON_BUILD_TARGETS = backup clean clobber distclean mrproper tidy unconfig
167
168# Only do the generic board check when actually building, not configuring
169ifeq ($(filter $(NON_BUILD_TARGETS),$(MAKECMDGOALS)),)
170ifeq ($(findstring _config,$(MAKECMDGOALS)),)
171$(CHECK_GENERIC_BOARD)
172endif
173endif
174
175# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
176# that (or fail if absent).  Otherwise, search for a linker script in a
177# standard location.
178
179LDSCRIPT_MAKEFILE_DIR = $(dir $(LDSCRIPT))
180
181ifndef LDSCRIPT
182	#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
183	ifdef CONFIG_SYS_LDSCRIPT
184		# need to strip off double quotes
185		LDSCRIPT := $(CONFIG_SYS_LDSCRIPT:"%"=%)
186	endif
187endif
188
189# If there is no specified link script, we look in a number of places for it
190ifndef LDSCRIPT
191	ifeq ($(CONFIG_NAND_U_BOOT),y)
192		LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
193		ifeq ($(wildcard $(LDSCRIPT)),)
194			LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
195		endif
196	endif
197	ifeq ($(wildcard $(LDSCRIPT)),)
198		LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
199	endif
200	ifeq ($(wildcard $(LDSCRIPT)),)
201		LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds
202	endif
203	ifeq ($(wildcard $(LDSCRIPT)),)
204		LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds
205		# We don't expect a Makefile here
206		LDSCRIPT_MAKEFILE_DIR =
207	endif
208	ifeq ($(wildcard $(LDSCRIPT)),)
209$(error could not find linker script)
210	endif
211endif
212
213#########################################################################
214# U-Boot objects....order is important (i.e. start must be first)
215
216head-y := $(CPUDIR)/start.o
217head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
218head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
219
220OBJS := $(addprefix $(obj),$(head-y))
221
222HAVE_VENDOR_COMMON_LIB = $(if $(wildcard board/$(VENDOR)/common/Makefile),y,n)
223
224LIBS-y += lib/
225LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
226LIBS-y += $(CPUDIR)/
227ifdef SOC
228LIBS-y += $(CPUDIR)/$(SOC)/
229endif
230LIBS-$(CONFIG_IXP4XX_NPE) += drivers/net/npe/
231LIBS-$(CONFIG_OF_EMBED) += dts/
232LIBS-y += arch/$(ARCH)/lib/
233LIBS-y += fs/
234LIBS-y += net/
235LIBS-y += disk/
236LIBS-y += drivers/
237LIBS-y += drivers/dma/
238LIBS-y += drivers/gpio/
239LIBS-y += drivers/i2c/
240LIBS-y += drivers/input/
241LIBS-y += drivers/mmc/
242LIBS-y += drivers/mtd/
243LIBS-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
244LIBS-y += drivers/mtd/onenand/
245LIBS-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
246LIBS-y += drivers/mtd/spi/
247LIBS-y += drivers/net/
248LIBS-y += drivers/net/phy/
249LIBS-y += drivers/pci/
250LIBS-y += drivers/power/ \
251	drivers/power/fuel_gauge/ \
252	drivers/power/mfd/ \
253	drivers/power/pmic/ \
254	drivers/power/battery/
255LIBS-y += drivers/spi/
256LIBS-$(CONFIG_FMAN_ENET) += drivers/net/fm/
257LIBS-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
258LIBS-y += drivers/serial/
259LIBS-y += drivers/usb/eth/
260LIBS-y += drivers/usb/gadget/
261LIBS-y += drivers/usb/host/
262LIBS-y += drivers/usb/musb/
263LIBS-y += drivers/usb/musb-new/
264LIBS-y += drivers/usb/phy/
265LIBS-y += drivers/usb/ulpi/
266LIBS-y += common/
267LIBS-y += lib/libfdt/
268LIBS-$(CONFIG_API) += api/
269LIBS-$(CONFIG_HAS_POST) += post/
270LIBS-y += test/
271
272ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
273LIBS-y += arch/$(ARCH)/imx-common/
274endif
275
276LIBS-$(CONFIG_ARM) += arch/arm/cpu/
277LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
278
279LIBS-y += board/$(BOARDDIR)/
280
281LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
282LIBS := $(addprefix $(obj),$(sort $(LIBS-y)))
283.PHONY : $(LIBS)
284
285# Add GCC lib
286ifdef USE_PRIVATE_LIBGCC
287ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
288PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/libgcc.o
289else
290PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
291endif
292else
293PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
294endif
295PLATFORM_LIBS += $(PLATFORM_LIBGCC)
296export PLATFORM_LIBS
297
298# Special flags for CPP when processing the linker script.
299# Pass the version down so we can handle backwards compatibility
300# on the fly.
301LDPPFLAGS += \
302	-include $(TOPDIR)/include/u-boot/u-boot.lds.h \
303	-DCPUDIR=$(CPUDIR) \
304	$(shell $(LD) --version | \
305	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
306
307__OBJS := $(subst $(obj),,$(OBJS))
308__LIBS := $(subst $(obj),,$(LIBS))
309
310#########################################################################
311#########################################################################
312
313ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
314BOARD_SIZE_CHECK = \
315	@actual=`wc -c $@ | awk '{print $$1}'`; \
316	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
317	if test $$actual -gt $$limit; then \
318		echo "$@ exceeds file size limit:" >&2 ; \
319		echo "  limit:  $$limit bytes" >&2 ; \
320		echo "  actual: $$actual bytes" >&2 ; \
321		echo "  excess: $$((actual - limit)) bytes" >&2; \
322		exit 1; \
323	fi
324else
325BOARD_SIZE_CHECK =
326endif
327
328# Statically apply RELA-style relocations (currently arm64 only)
329ifneq ($(CONFIG_STATIC_RELA),)
330# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
331DO_STATIC_RELA = \
332	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
333	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
334	$(obj)tools/relocate-rela $(2) $(3) $$start $$end
335else
336DO_STATIC_RELA =
337endif
338
339# Always append ALL so that arch config.mk's can add custom ones
340ALL-y += $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map
341
342ALL-$(CONFIG_NAND_U_BOOT) += $(obj)u-boot-nand.bin
343ALL-$(CONFIG_ONENAND_U_BOOT) += $(obj)u-boot-onenand.bin
344ALL-$(CONFIG_RAMBOOT_PBL) += $(obj)u-boot.pbl
345ALL-$(CONFIG_SPL) += $(obj)spl/u-boot-spl.bin
346ALL-$(CONFIG_SPL_FRAMEWORK) += $(obj)u-boot.img
347ALL-$(CONFIG_TPL) += $(obj)tpl/u-boot-tpl.bin
348ALL-$(CONFIG_OF_SEPARATE) += $(obj)u-boot.dtb $(obj)u-boot-dtb.bin
349ifneq ($(CONFIG_SPL_TARGET),)
350ALL-$(CONFIG_SPL) += $(obj)$(CONFIG_SPL_TARGET:"%"=%)
351endif
352ALL-$(CONFIG_REMAKE_ELF) += $(obj)u-boot.elf
353
354# enable combined SPL/u-boot/dtb rules for tegra
355ifneq ($(CONFIG_TEGRA),)
356ifeq ($(CONFIG_SPL),y)
357ifeq ($(CONFIG_OF_SEPARATE),y)
358ALL-y += $(obj)u-boot-dtb-tegra.bin
359else
360ALL-y += $(obj)u-boot-nodtb-tegra.bin
361endif
362endif
363endif
364
365build := -f $(TOPDIR)/scripts/Makefile.build -C
366
367all:		$(ALL-y) $(SUBDIR_EXAMPLES-y)
368
369$(obj)u-boot.dtb:	checkdtc $(obj)u-boot
370		$(MAKE) $(build) dts binary
371		mv $(obj)dts/dt.dtb $@
372
373$(obj)u-boot-dtb.bin:	$(obj)u-boot.bin $(obj)u-boot.dtb
374		cat $^ >$@
375
376$(obj)u-boot.hex:	$(obj)u-boot
377		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
378
379$(obj)u-boot.srec:	$(obj)u-boot
380		$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@
381
382$(obj)u-boot.bin:	$(obj)u-boot
383		$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
384		$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
385		$(BOARD_SIZE_CHECK)
386
387$(obj)u-boot.ldr:	$(obj)u-boot
388		$(CREATE_LDR_ENV)
389		$(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
390		$(BOARD_SIZE_CHECK)
391
392$(obj)u-boot.ldr.hex:	$(obj)u-boot.ldr
393		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
394
395$(obj)u-boot.ldr.srec:	$(obj)u-boot.ldr
396		$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
397
398#
399# U-Boot entry point, needed for booting of full-blown U-Boot
400# from the SPL U-Boot version.
401#
402ifndef CONFIG_SYS_UBOOT_START
403CONFIG_SYS_UBOOT_START := 0
404endif
405
406$(obj)u-boot.img:	$(obj)u-boot.bin
407		$(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
408		-O u-boot -a $(CONFIG_SYS_TEXT_BASE) \
409		-e $(CONFIG_SYS_UBOOT_START) \
410		-n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \
411			sed -e 's/"[	 ]*$$/ for $(BOARD) board"/') \
412		-d $< $@
413
414$(obj)u-boot.imx: $(obj)u-boot.bin depend
415		$(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common $(OBJTREE)/u-boot.imx
416
417$(obj)u-boot.kwb:       $(obj)u-boot.bin
418		$(obj)tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \
419		-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
420
421$(obj)u-boot.pbl:	$(obj)u-boot.bin
422		$(obj)tools/mkimage -n $(CONFIG_SYS_FSL_PBL_RCW) \
423		-R $(CONFIG_SYS_FSL_PBL_PBI) -T pblimage \
424		-d $< $@
425
426$(obj)u-boot.sha1:	$(obj)u-boot.bin
427		$(obj)tools/ubsha1 $(obj)u-boot.bin
428
429$(obj)u-boot.dis:	$(obj)u-boot
430		$(OBJDUMP) -d $< > $@
431
432# $@ is output, $(1) and $(2) are inputs, $(3) is padded intermediate,
433# $(4) is pad-to
434SPL_PAD_APPEND = \
435		$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(4) -I binary -O binary \
436		$(1) $(obj)$(3); \
437		cat $(obj)$(3) $(2) > $@; \
438		rm $(obj)$(3)
439
440ifdef CONFIG_TPL
441SPL_PAYLOAD := $(obj)tpl/u-boot-with-tpl.bin
442else
443SPL_PAYLOAD := $(obj)u-boot.bin
444endif
445
446$(obj)u-boot-with-spl.bin: $(obj)spl/u-boot-spl.bin $(SPL_PAYLOAD)
447		$(call SPL_PAD_APPEND,$<,$(SPL_PAYLOAD),spl/u-boot-spl-pad.bin,$(CONFIG_SPL_PAD_TO))
448
449$(obj)tpl/u-boot-with-tpl.bin: $(obj)tpl/u-boot-tpl.bin $(obj)u-boot.bin
450		$(call SPL_PAD_APPEND,$<,$(obj)u-boot.bin,tpl/u-boot-tpl-pad.bin,$(CONFIG_TPL_PAD_TO))
451
452$(obj)u-boot-with-spl.imx: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
453		$(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common \
454			$(OBJTREE)/u-boot-with-spl.imx
455
456$(obj)u-boot-with-nand-spl.imx: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
457		$(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common \
458			$(OBJTREE)/u-boot-with-nand-spl.imx
459
460$(obj)u-boot.ubl:       $(obj)u-boot-with-spl.bin
461		$(obj)tools/mkimage -n $(UBL_CONFIG) -T ublimage \
462		-e $(CONFIG_SYS_TEXT_BASE) -d $< $(obj)u-boot.ubl
463
464$(obj)u-boot.ais:       $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
465		$(obj)tools/mkimage -s -n $(if $(CONFIG_AIS_CONFIG_FILE),$(CONFIG_AIS_CONFIG_FILE),"/dev/null") \
466			-T aisimage \
467			-e $(CONFIG_SPL_TEXT_BASE) \
468			-d $(obj)spl/u-boot-spl.bin \
469			$(obj)spl/u-boot-spl.ais
470		$(OBJCOPY) ${OBJCFLAGS} -I binary \
471			--pad-to=$(CONFIG_SPL_MAX_SIZE) -O binary \
472			$(obj)spl/u-boot-spl.ais $(obj)spl/u-boot-spl-pad.ais
473		cat $(obj)spl/u-boot-spl-pad.ais $(obj)u-boot.img > \
474			$(obj)u-boot.ais
475
476
477$(obj)u-boot.sb:       $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin
478		$(MAKE) $(build) $(SRCTREE)/$(CPUDIR)/$(SOC)/ $(OBJTREE)/u-boot.sb
479
480# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
481# Both images are created using mkimage (crc etc), so that the ROM
482# bootloader can check its integrity. Padding needs to be done to the
483# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
484# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
485# The resulting image containing both U-Boot images is called u-boot.spr
486$(obj)u-boot.spr:	$(obj)u-boot.img $(obj)spl/u-boot-spl.bin
487		$(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
488		-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
489		-d $(obj)spl/u-boot-spl.bin $@
490		$(OBJCOPY) -I binary -O binary \
491			--pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff $@
492		cat $(obj)u-boot.img >> $@
493
494ifneq ($(CONFIG_TEGRA),)
495$(obj)u-boot-nodtb-tegra.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
496		$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SYS_TEXT_BASE) -O binary $(obj)spl/u-boot-spl $(obj)spl/u-boot-spl-pad.bin
497		cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $@
498		rm $(obj)spl/u-boot-spl-pad.bin
499
500ifeq ($(CONFIG_OF_SEPARATE),y)
501$(obj)u-boot-dtb-tegra.bin: $(obj)u-boot-nodtb-tegra.bin $(obj)u-boot.dtb
502		cat $(obj)u-boot-nodtb-tegra.bin $(obj)u-boot.dtb > $@
503endif
504endif
505
506$(obj)u-boot-img.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
507		cat $(obj)spl/u-boot-spl.bin $(obj)u-boot.img > $@
508
509# PPC4xx needs the SPL at the end of the image, since the reset vector
510# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
511# and need to introduce a new build target with the full blown U-Boot
512# at the start padded up to the start of the SPL image. And then concat
513# the SPL image to the end.
514$(obj)u-boot-img-spl-at-end.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
515		$(OBJCOPY) -I binary -O binary --pad-to=$(CONFIG_UBOOT_PAD_TO) \
516			 --gap-fill=0xff $(obj)u-boot.img $@
517		cat $(obj)spl/u-boot-spl.bin >> $@
518
519# Create a new ELF from a raw binary file.  This is useful for arm64
520# where static relocation needs to be performed on the raw binary,
521# but certain simulators only accept an ELF file (but don't do the
522# relocation).
523# FIXME refactor dts/Makefile to share target/arch detection
524$(obj)u-boot.elf: $(obj)u-boot.bin
525	@$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
526		$< $(obj)u-boot-elf.o
527	@$(LD) $(obj)u-boot-elf.o -o $@ \
528		--defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
529		-Ttext=$(CONFIG_SYS_TEXT_BASE)
530
531ifeq ($(CONFIG_SANDBOX),y)
532GEN_UBOOT = \
533		cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \
534			-Wl,--start-group $(__LIBS) -Wl,--end-group \
535			$(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -o u-boot
536else
537GEN_UBOOT = \
538		cd $(LNDIR) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
539			$(__OBJS) \
540			--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
541			-Map u-boot.map -o u-boot
542endif
543
544$(obj)u-boot:	depend \
545		$(SUBDIR_TOOLS) $(OBJS) $(LIBS) $(obj)u-boot.lds
546		$(GEN_UBOOT)
547ifeq ($(CONFIG_KALLSYMS),y)
548		smap=`$(call SYSTEM_MAP,$(obj)u-boot) | \
549			awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
550		$(CC) $(CFLAGS) -DSYSTEM_MAP="\"$${smap}\"" \
551			-c common/system_map.c -o $(obj)common/system_map.o
552		$(GEN_UBOOT) $(obj)common/system_map.o
553endif
554
555$(OBJS):
556	@:
557
558$(LIBS):	depend $(SUBDIR_TOOLS)
559		$(MAKE) $(build) $(dir $(subst $(obj),,$@))
560
561$(SUBDIRS):	depend
562		$(MAKE) -C $@ all
563
564$(SUBDIR_EXAMPLES-y): $(obj)u-boot
565
566$(obj)u-boot.lds: $(LDSCRIPT) depend
567		$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
568
569nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend
570		$(MAKE) -C nand_spl/board/$(BOARDDIR) all
571
572$(obj)u-boot-nand.bin:	nand_spl $(obj)u-boot.bin
573		cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
574
575$(obj)spl/u-boot-spl.bin:	$(SUBDIR_TOOLS) depend
576		$(MAKE) -C spl all
577
578$(obj)tpl/u-boot-tpl.bin:	$(SUBDIR_TOOLS) depend
579		$(MAKE) -C spl all CONFIG_TPL_BUILD=y
580
581# Explicitly make _depend in subdirs containing multiple targets to prevent
582# parallel sub-makes creating .depend files simultaneously.
583depend dep:	$(TIMESTAMP_FILE) $(VERSION_FILE) \
584		$(obj)include/spl-autoconf.mk \
585		$(obj)include/tpl-autoconf.mk \
586		$(obj)include/autoconf.mk \
587		$(obj)include/generated/generic-asm-offsets.h \
588		$(obj)include/generated/asm-offsets.h
589
590TAG_SUBDIRS = $(SUBDIRS)
591TAG_SUBDIRS += $(dir $(__LIBS))
592TAG_SUBDIRS += include
593
594FIND := find
595FINDFLAGS := -L
596
597checkstack:
598		$(CROSS_COMPILE)objdump -d $(obj)u-boot \
599			`$(FIND) $(obj) -name u-boot-spl -print` | \
600			perl $(src)scripts/checkstack.pl $(ARCH)
601
602tags ctags:
603		ctags -w -o $(obj)ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
604						-name '*.[chS]' -print`
605
606etags:
607		etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
608						-name '*.[chS]' -print`
609cscope:
610		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
611						cscope.files
612		cscope -b -q -k
613
614SYSTEM_MAP = \
615		$(NM) $1 | \
616		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
617		LC_ALL=C sort
618$(obj)System.map:	$(obj)u-boot
619		@$(call SYSTEM_MAP,$<) > $@
620
621checkthumb:
622	@if test $(call cc-version) -lt 0404; then \
623		echo -n '*** Your GCC does not produce working '; \
624		echo 'binaries in THUMB mode.'; \
625		echo '*** Your board is configured for THUMB mode.'; \
626		false; \
627	fi
628
629# GCC 3.x is reported to have problems generating the type of relocation
630# that U-Boot wants.
631# See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
632checkgcc4:
633	@if test $(call cc-version) -lt 0400; then \
634		echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
635		false; \
636	fi
637
638checkdtc:
639	@if test $(call dtc-version) -lt 0104; then \
640		echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
641		false; \
642	fi
643
644#
645# Auto-generate the autoconf.mk file (which is included by all makefiles)
646#
647# This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
648# the dep file is only include in this top level makefile to determine when
649# to regenerate the autoconf.mk file.
650$(obj)include/autoconf.mk.dep: $(obj)include/config.h include/common.h
651	@$(XECHO) Generating $@ ; \
652	: Generate the dependancies ; \
653	$(CC) -x c -DDO_DEPS_ONLY -M $(CFLAGS) $(CPPFLAGS) \
654		-MQ $(obj)include/autoconf.mk include/common.h > $@ || \
655		rm $@
656
657$(obj)include/autoconf.mk: $(obj)include/config.h
658	@$(XECHO) Generating $@ ; \
659	: Extract the config macros ; \
660	$(CPP) $(CFLAGS) -DDO_DEPS_ONLY -dM include/common.h > $@.tmp && \
661		sed -n -f tools/scripts/define2mk.sed $@.tmp > $@; \
662	rm $@.tmp
663
664# Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL)
665$(obj)include/tpl-autoconf.mk: $(obj)include/config.h
666	@$(XECHO) Generating $@ ; \
667	: Extract the config macros ; \
668	$(CPP) $(CFLAGS) -DCONFIG_TPL_BUILD  -DCONFIG_SPL_BUILD\
669			-DDO_DEPS_ONLY -dM include/common.h > $@.tmp && \
670		sed -n -f tools/scripts/define2mk.sed $@.tmp > $@; \
671	rm $@.tmp
672
673$(obj)include/spl-autoconf.mk: $(obj)include/config.h
674	@$(XECHO) Generating $@ ; \
675	: Extract the config macros ; \
676	$(CPP) $(CFLAGS) -DCONFIG_SPL_BUILD -DDO_DEPS_ONLY -dM include/common.h > $@.tmp && \
677		sed -n -f tools/scripts/define2mk.sed $@.tmp > $@; \
678	rm $@.tmp
679
680$(obj)include/generated/generic-asm-offsets.h: $(obj)lib/asm-offsets.s
681	@$(XECHO) Generating $@
682	tools/scripts/make-asm-offsets $(obj)lib/asm-offsets.s $@
683
684$(obj)lib/asm-offsets.s: $(obj)include/config.h $(src)lib/asm-offsets.c
685	@mkdir -p $(obj)lib
686	$(CC) -DDO_DEPS_ONLY \
687		$(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
688		-o $@ $(src)lib/asm-offsets.c -c -S
689
690$(obj)include/generated/asm-offsets.h: $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s
691	@$(XECHO) Generating $@
692	tools/scripts/make-asm-offsets $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s $@
693
694$(obj)$(CPUDIR)/$(SOC)/asm-offsets.s: $(obj)include/config.h
695	@mkdir -p $(obj)$(CPUDIR)/$(SOC)
696	if [ -f $(src)$(CPUDIR)/$(SOC)/asm-offsets.c ];then \
697		$(CC) -DDO_DEPS_ONLY \
698		$(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
699			-o $@ $(src)$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \
700	else \
701		touch $@; \
702	fi
703
704#########################################################################
705else	# !config.mk
706all $(obj)u-boot.hex $(obj)u-boot.srec $(obj)u-boot.bin \
707$(obj)u-boot.img $(obj)u-boot.dis $(obj)u-boot \
708$(filter-out tools,$(SUBDIRS)) \
709depend dep tags ctags etags cscope $(obj)System.map:
710	@echo "System not configured - see README" >&2
711	@ exit 1
712
713tools: $(VERSION_FILE) $(TIMESTAMP_FILE)
714	$(MAKE) -C $@ all
715endif	# config.mk
716
717# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
718# R_AARCH64_RELATIVE (64-bit).
719checkarmreloc: $(obj)u-boot
720	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
721		grep R_A | sort -u`"; \
722	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
723		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
724		echo "$< contains unexpected relocations: $$RELOC"; \
725		false; \
726	fi
727
728$(VERSION_FILE):
729		@mkdir -p $(dir $(VERSION_FILE))
730		@( localvers='$(shell $(TOPDIR)/scripts/setlocalversion $(TOPDIR))' ; \
731		   printf '#define PLAIN_VERSION "%s%s"\n' \
732			"$(U_BOOT_VERSION)" "$${localvers}" ; \
733		   printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' \
734			"$(U_BOOT_VERSION)" "$${localvers}" ; \
735		) > $@.tmp
736		@( printf '#define CC_VERSION_STRING "%s"\n' \
737		 '$(shell $(CC) --version | head -n 1)' )>>  $@.tmp
738		@( printf '#define LD_VERSION_STRING "%s"\n' \
739		 '$(shell $(LD) -v | head -n 1)' )>>  $@.tmp
740		@cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
741
742$(TIMESTAMP_FILE):
743		@mkdir -p $(dir $(TIMESTAMP_FILE))
744		@LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > $@.tmp
745		@LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp
746		@cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
747
748easylogo env gdb:
749	$(MAKE) -C tools/$@ all MTD_VERSION=${MTD_VERSION}
750gdbtools: gdb
751
752xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
753	$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) -C doc/DocBook/ $@
754
755tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
756	$(MAKE) -C tools HOST_TOOLS_ALL=y
757
758.PHONY : CHANGELOG
759CHANGELOG:
760	git log --no-merges U-Boot-1_1_5.. | \
761	unexpand -a | sed -e 's/\s\s*$$//' > $@
762
763include/license.h: tools/bin2header COPYING
764	cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
765#########################################################################
766
767unconfig:
768	@rm -f $(obj)include/config.h $(obj)include/config.mk \
769		$(obj)board/*/config.tmp $(obj)board/*/*/config.tmp \
770		$(obj)include/autoconf.mk $(obj)include/autoconf.mk.dep \
771		$(obj)include/spl-autoconf.mk \
772		$(obj)include/tpl-autoconf.mk
773
774%_config::	unconfig
775	@$(MKCONFIG) -A $(@:_config=)
776
777sinclude $(obj).boards.depend
778$(obj).boards.depend:	boards.cfg
779	@awk '(NF && $$1 !~ /^#/) { print $$7 ": " $$7 "_config; $$(MAKE)" }' $< > $@
780
781#########################################################################
782#########################################################################
783
784clean:
785	@rm -f $(obj)examples/standalone/atmel_df_pow2			  \
786	       $(obj)examples/standalone/hello_world			  \
787	       $(obj)examples/standalone/interrupt			  \
788	       $(obj)examples/standalone/mem_to_mem_idma2intr		  \
789	       $(obj)examples/standalone/sched				  \
790	       $(obj)examples/standalone/smc911{11,x}_eeprom		  \
791	       $(obj)examples/standalone/test_burst			  \
792	       $(obj)examples/standalone/timer
793	@rm -f $(obj)examples/api/demo{,.bin}
794	@rm -f $(obj)tools/bmp_logo	   $(obj)tools/easylogo/easylogo  \
795	       $(obj)tools/env/fw_printenv				  \
796	       $(obj)tools/envcrc					  \
797	       $(obj)tools/gdb/{gdbcont,gdbsend}			  \
798	       $(obj)tools/gen_eth_addr    $(obj)tools/img2srec		  \
799	       $(obj)tools/dump{env,}image		  \
800	       $(obj)tools/mk{env,}image   $(obj)tools/mpc86x_clk	  \
801	       $(obj)tools/mk{$(BOARD),}spl				  \
802	       $(obj)tools/mxsboot					  \
803	       $(obj)tools/ncb		   $(obj)tools/ubsha1		  \
804	       $(obj)tools/kernel-doc/docproc				  \
805	       $(obj)tools/proftool
806	@rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image}	  \
807	       $(obj)board/matrix_vision/*/bootscript.img		  \
808	       $(obj)u-boot.lds						  \
809	       $(obj)arch/blackfin/cpu/init.{lds,elf}
810	@rm -f $(obj)include/bmp_logo.h
811	@rm -f $(obj)include/bmp_logo_data.h
812	@rm -f $(obj)lib/asm-offsets.s
813	@rm -f $(obj)include/generated/asm-offsets.h
814	@rm -f $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s
815	@rm -f $(TIMESTAMP_FILE) $(VERSION_FILE)
816	@$(MAKE) -s -C doc/DocBook/ cleandocs
817	@find $(OBJTREE) -type f \
818		\( -name 'core' -o -name '*.bak' -o -name '*~' -o -name '*.su' \
819		-o -name '*.o'	-o -name '*.a' -o -name '*.exe' \
820		-o -name '*.cfgtmp' \) -print \
821		| xargs rm -f
822
823# Removes everything not needed for testing u-boot
824tidy:	clean
825	@find $(OBJTREE) -type f \( -name '*.depend*' \) -print | xargs rm -f
826
827clobber:	tidy
828	@find $(OBJTREE) -type f \( -name '*.srec' \
829		-o -name '*.bin' -o -name u-boot.img \) \
830		-print0 | xargs -0 rm -f
831	@rm -f $(OBJS) $(obj)*.bak $(obj)ctags $(obj)etags $(obj)TAGS \
832		$(obj)cscope.* $(obj)*.*~
833	@rm -f $(obj)u-boot $(obj)u-boot.map $(obj)u-boot.hex $(ALL-y)
834	@rm -f $(obj)u-boot.kwb
835	@rm -f $(obj)u-boot.pbl
836	@rm -f $(obj)u-boot.imx
837	@rm -f $(obj)u-boot-with-spl.imx
838	@rm -f $(obj)u-boot-with-nand-spl.imx
839	@rm -f $(obj)u-boot.ubl
840	@rm -f $(obj)u-boot.ais
841	@rm -f $(obj)u-boot.dtb
842	@rm -f $(obj)u-boot.sb
843	@rm -f $(obj)u-boot.spr
844	@rm -f $(obj)nand_spl/{u-boot.{lds,lst},System.map}
845	@rm -f $(obj)nand_spl/{u-boot-nand_spl.lds,u-boot-spl,u-boot-spl.map}
846	@rm -f $(obj)spl/{u-boot-spl,u-boot-spl.bin,u-boot-spl.map}
847	@rm -f $(obj)spl/u-boot-spl.lds
848	@rm -f $(obj)tpl/{u-boot-tpl,u-boot-tpl.bin,u-boot-tpl.map}
849	@rm -f $(obj)tpl/u-boot-spl.lds
850	@rm -f $(obj)MLO MLO.byteswap
851	@rm -f $(obj)SPL
852	@rm -f $(obj)tools/xway-swap-bytes
853	@rm -fr $(obj)include/asm/proc $(obj)include/asm/arch $(obj)include/asm
854	@rm -fr $(obj)include/generated
855	@[ ! -d $(obj)nand_spl ] || find $(obj)nand_spl -name "*" -type l -print | xargs rm -f
856	@rm -f $(obj)dts/*.tmp
857	@rm -f $(obj)spl/u-boot-spl{,-pad}.ais
858
859mrproper \
860distclean:	clobber unconfig
861ifneq ($(OBJTREE),$(SRCTREE))
862	rm -rf $(obj)*
863endif
864
865backup:
866	F=`basename $(TOPDIR)` ; cd .. ; \
867	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
868
869#########################################################################
870