u-boot/scripts/Makefile.spl

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# SPDX-License-Identifier: GPL-2.0+
#
# (C) Copyright 2000-2011
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# (C) Copyright 2011
# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
#
# (C) Copyright 2011
# Texas Instruments Incorporated - http://www.ti.com/
# Aneesh V <aneesh@ti.com>
# Based on top-level Makefile.
#
src := $(obj)
# Create output directory if not already present
_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
include $(srctree)/scripts/Kbuild.include
kconfig: switch to single .config configuration When Kconfig for U-boot was examined, one of the biggest issues was how to support multiple images (Normal, SPL, TPL). There were actually two options, "single .config" and "multiple .config". After some discussions and thought experiments, I chose the latter, i.e. to create ".config", "spl/.config", "tpl/.config" for Normal, SPL, TPL, respectively. It is true that the "multiple .config" strategy provided us the maximum flexibility and helped to avoid duplicating CONFIGs among Normal, SPL, TPL, but I have noticed some fatal problems: [1] It is impossible to share CONFIG options across the images. If you change the configuration of Main image, you often have to adjust some SPL configurations correspondingly. Currently, we cannot handle the dependencies between them. It means one of the biggest advantages of Kconfig is lost. [2] It is too painful to change both ".config" and "spl/.config". Sunxi guys started to work around this problem by creating a new configuration target. Commit cbdd9a9737cc (sunxi: kconfig: Add %_felconfig rule to enable FEL build of sunxi platforms.) added "make *_felconfig" to enable CONFIG_SPL_FEL on both images. Changing the configuration of multiple images in one command is a generic demand. The current implementation cannot propose any good solution about this. [3] Kconfig files are getting ugly and difficult to understand. Commit b724bd7d6349 (dm: Kconfig: Move CONFIG_SYS_MALLOC_F_LEN to Kconfig) has sprinkled "if !SPL_BUILD" over the Kconfig files. [4] The build system got more complicated than it should be. To adjust Linux-originated Kconfig to U-Boot, the helper script "scripts/multiconfig.sh" was introduced. Writing a complicated text processor is a shell script sometimes caused problems. Now I believe the "single .config" will serve us better. With it, all the problems above would go away. Instead, we will have to add some CONFIG_SPL_* (and CONFIG_TPL_*) options such as CONFIG_SPL_DM, but we will not have much. Anyway, this is what we do now in scripts/Makefile.spl. I admit my mistake with my apology and this commit switches to the single .config configuration. It is not so difficult to do that: - Remove unnecessary processings from scripts/multiconfig.sh This file will remain for a while to support the current defconfig format. It will be removed after more cleanups are done. - Adjust some makefiles and Kconfigs - Add some entries to include/config_uncmd_spl.h and the new file scripts/Makefile.uncmd_spl. Some CONFIG options that are not supported on SPL must be disabled because one .config is shared between SPL and U-Boot proper going forward. I know this is not a beautiful solution and I think we can do better, but let's see how much we will have to describe them. - update doc/README.kconfig More cleaning up patches will follow this. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-02-24 13:26:20 +00:00
-include include/config/auto.conf
kconfig: switch to Kconfig This commit enables Kconfig. Going forward, we use Kconfig for the board configuration. mkconfig will never be used. Nor will include/config.mk be generated. Kconfig must be adjusted for U-Boot because our situation is a little more complicated than Linux Kernel. We have to generate multiple boot images (Normal, SPL, TPL) from one source tree. Each image needs its own configuration input. Usage: Run "make <board>_defconfig" to do the board configuration. It will create the .config file and additionally spl/.config, tpl/.config if SPL, TPL is enabled, respectively. You can use "make config", "make menuconfig" etc. to create a new .config or modify the existing one. Use "make spl/config", "make spl/menuconfig" etc. for spl/.config and do likewise for tpl/.config file. The generic syntax of configuration targets for SPL, TPL is: <target_image>/<config_command> Here, <target_image> is either 'spl' or 'tpl' <config_command> is 'config', 'menuconfig', 'xconfig', etc. When the configuration is done, run "make". (Or "make <board>_defconfig all" will do the configuration and build in one time.) For futher information of how Kconfig works in U-Boot, please read the comment block of scripts/multiconfig.py. By the way, there is another item worth remarking here: coexistence of Kconfig and board herder files. Prior to Kconfig, we used C headers to define a set of configs. We expect a very long term to migrate from C headers to Kconfig. Two different infractructure must coexist in the interim. In our former configuration scheme, include/autoconf.mk was generated for use in makefiles. It is still generated under include/, spl/include/, tpl/include/ directory for the Normal, SPL, TPL image, respectively. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-07-30 05:08:17 +00:00
-include $(obj)/include/autoconf.mk
UBOOTINCLUDE := -I$(obj)/include $(UBOOTINCLUDE)
kconfig: switch to single .config configuration When Kconfig for U-boot was examined, one of the biggest issues was how to support multiple images (Normal, SPL, TPL). There were actually two options, "single .config" and "multiple .config". After some discussions and thought experiments, I chose the latter, i.e. to create ".config", "spl/.config", "tpl/.config" for Normal, SPL, TPL, respectively. It is true that the "multiple .config" strategy provided us the maximum flexibility and helped to avoid duplicating CONFIGs among Normal, SPL, TPL, but I have noticed some fatal problems: [1] It is impossible to share CONFIG options across the images. If you change the configuration of Main image, you often have to adjust some SPL configurations correspondingly. Currently, we cannot handle the dependencies between them. It means one of the biggest advantages of Kconfig is lost. [2] It is too painful to change both ".config" and "spl/.config". Sunxi guys started to work around this problem by creating a new configuration target. Commit cbdd9a9737cc (sunxi: kconfig: Add %_felconfig rule to enable FEL build of sunxi platforms.) added "make *_felconfig" to enable CONFIG_SPL_FEL on both images. Changing the configuration of multiple images in one command is a generic demand. The current implementation cannot propose any good solution about this. [3] Kconfig files are getting ugly and difficult to understand. Commit b724bd7d6349 (dm: Kconfig: Move CONFIG_SYS_MALLOC_F_LEN to Kconfig) has sprinkled "if !SPL_BUILD" over the Kconfig files. [4] The build system got more complicated than it should be. To adjust Linux-originated Kconfig to U-Boot, the helper script "scripts/multiconfig.sh" was introduced. Writing a complicated text processor is a shell script sometimes caused problems. Now I believe the "single .config" will serve us better. With it, all the problems above would go away. Instead, we will have to add some CONFIG_SPL_* (and CONFIG_TPL_*) options such as CONFIG_SPL_DM, but we will not have much. Anyway, this is what we do now in scripts/Makefile.spl. I admit my mistake with my apology and this commit switches to the single .config configuration. It is not so difficult to do that: - Remove unnecessary processings from scripts/multiconfig.sh This file will remain for a while to support the current defconfig format. It will be removed after more cleanups are done. - Adjust some makefiles and Kconfigs - Add some entries to include/config_uncmd_spl.h and the new file scripts/Makefile.uncmd_spl. Some CONFIG options that are not supported on SPL must be disabled because one .config is shared between SPL and U-Boot proper going forward. I know this is not a beautiful solution and I think we can do better, but let's see how much we will have to describe them. - update doc/README.kconfig More cleaning up patches will follow this. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-02-24 13:26:20 +00:00
KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
ifeq ($(CONFIG_TPL_BUILD),y)
KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
endif
ifeq ($(CONFIG_TPL_BUILD),y)
SPL_BIN := u-boot-tpl
SPL_NAME := tpl
else
SPL_BIN := u-boot-spl
SPL_NAME := spl
endif
export SPL_NAME
ifdef CONFIG_SPL_BUILD
SPL_ := SPL_
ifeq ($(CONFIG_TPL_BUILD),y)
SPL_TPL_ := TPL_
else
SPL_TPL_ := SPL_
endif
else
SPL_ :=
SPL_TPL_ :=
endif
ifeq ($(obj)$(CONFIG_SUPPORT_SPL),spl)
$(error You cannot build SPL without enabling CONFIG_SUPPORT_SPL)
endif
ifeq ($(obj)$(CONFIG_SUPPORT_TPL),tpl)
$(error You cannot build TPL without enabling CONFIG_SUPPORT_TPL)
endif
include $(srctree)/config.mk
include $(srctree)/arch/$(ARCH)/Makefile
include $(srctree)/scripts/Makefile.lib
kbuild: improve Kbuild speed Kbuild brought about many advantages for us but a significant performance regression was reported by Simon Glass. After some discussions and analysis, it turned out its main cause is in $(call cc-option,...). Historically, U-Boot parses all config.mk (arch/*/config.mk and board/*/config.mk) every time descending into subdirectories. That means cc-options are evaluated over and over again. $(call cc-option,...) is useful but costly. So we want to evaluate them only in ./Makefile and spl/Makefile and export compiler flags. This commit changes the build system as follows: - Modify scripts/Makefile.build to not include config.mk Instead, add $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y, cppflags-y. - Export many variables Going forward, Kbuild will not parse config.mk files when it descends into subdirectories. If we want to set variables in config.mk and use them in subdirectories, they must be exported. This is the list of variables to get exported: PLATFORM_CPPFLAGS CPUDIR BOARDDIR OBJCOPYFLAGS LDFLAGS LDFLAGS_FINAL (used in nand_spl/board/*/*/Makefile) CONFIG_STANDALONE_LOAD_ADDR (used in examples/standalone/Makefile) SYM_PREFIX (used in examples/standalone/Makefile) RELFLAGS (used in examples/standalone/Makefile) - Delete CPPFLAGS This variable has been replaced with PLATFORM_CPPFLAGS - Copy gcclibdir from example/standalone/Makefile to arch/sparc/config.mk The reference in CONFIG_STANDALONE_LOAD_ADDR must be resolved before it is exported. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> [on Sandbox] Tested-by: Stephen Warren <swarren@nvidia.com> [on Tegra]
2014-03-05 07:59:40 +00:00
# Enable garbage collection of un-used sections for SPL
KBUILD_CFLAGS += -ffunction-sections -fdata-sections
LDFLAGS_FINAL += --gc-sections
ifeq ($(CONFIG_$(SPL_TPL_)STACKPROTECTOR),y)
KBUILD_CFLAGS += -fstack-protector-strong
else
KBUILD_CFLAGS += -fno-stack-protector
endif
# FIX ME
kbuild: improve Kbuild speed Kbuild brought about many advantages for us but a significant performance regression was reported by Simon Glass. After some discussions and analysis, it turned out its main cause is in $(call cc-option,...). Historically, U-Boot parses all config.mk (arch/*/config.mk and board/*/config.mk) every time descending into subdirectories. That means cc-options are evaluated over and over again. $(call cc-option,...) is useful but costly. So we want to evaluate them only in ./Makefile and spl/Makefile and export compiler flags. This commit changes the build system as follows: - Modify scripts/Makefile.build to not include config.mk Instead, add $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y, cppflags-y. - Export many variables Going forward, Kbuild will not parse config.mk files when it descends into subdirectories. If we want to set variables in config.mk and use them in subdirectories, they must be exported. This is the list of variables to get exported: PLATFORM_CPPFLAGS CPUDIR BOARDDIR OBJCOPYFLAGS LDFLAGS LDFLAGS_FINAL (used in nand_spl/board/*/*/Makefile) CONFIG_STANDALONE_LOAD_ADDR (used in examples/standalone/Makefile) SYM_PREFIX (used in examples/standalone/Makefile) RELFLAGS (used in examples/standalone/Makefile) - Delete CPPFLAGS This variable has been replaced with PLATFORM_CPPFLAGS - Copy gcclibdir from example/standalone/Makefile to arch/sparc/config.mk The reference in CONFIG_STANDALONE_LOAD_ADDR must be resolved before it is exported. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> [on Sandbox] Tested-by: Stephen Warren <swarren@nvidia.com> [on Tegra]
2014-03-05 07:59:40 +00:00
cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
$(NOSTDINC_FLAGS)
c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
ifeq ($(CONFIG_TPL_BUILD),y)
libs-$(CONFIG_TPL_FRAMEWORK) += common/spl/
else
libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
endif
libs-y += common/init/
# Special handling for a few options which support SPL/TPL
ifeq ($(CONFIG_TPL_BUILD),y)
libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += boot/ common/ cmd/ env/
libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
else
libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += boot/ common/ cmd/ env/
libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
ifdef CONFIG_SPL_FRAMEWORK
libs-$(CONFIG_PARTITIONS) += disk/
endif
endif
libs-y += drivers/
libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/dwc3/
libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/cdns3/
libs-y += dts/
libs-y += fs/
libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
libs-$(CONFIG_SPL_NET) += net/
libs-$(CONFIG_SPL_UNIT_TEST) += test/
head-y := $(addprefix $(obj)/,$(head-y))
libs-y := $(addprefix $(obj)/,$(libs-y))
u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
# Add GCC lib
ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
endif
u-boot-spl-init := $(head-y)
u-boot-spl-main := $(libs-y)
ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA
platdata-hdr := include/generated/dt-structs-gen.h include/generated/dt-decl.h
platdata-inst := $(obj)/dts/dt-uclass.o $(obj)/dts/dt-device.o
platdata-noinst := $(obj)/dts/dt-plat.o
ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA_INST
u-boot-spl-platdata := $(platdata-inst)
u-boot-spl-old-platdata := $(platdata-noinst)
else
u-boot-spl-platdata := $(platdata-noinst)
u-boot-spl-old-platdata := $(platdata-inst)
endif
# Files we need to generate
u-boot-spl-platdata_c := $(patsubst %.o,%.c,$(u-boot-spl-platdata))
# Files we won't generate and should remove
u-boot-spl-old-platdata_c := $(patsubst %.o,%.c,$(u-boot-spl-old-platdata))
endif # OF_PLATDATA
# Linker Script
# First test whether there's a linker-script for the specific stage defined...
ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),)
# need to strip off double quotes
LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%))
else
# ...then fall back to the generic SPL linker-script
ifneq ($(CONFIG_SPL_LDSCRIPT),)
# need to strip off double quotes
LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
endif
endif
ifeq ($(wildcard $(LDSCRIPT)),)
LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
endif
ifeq ($(wildcard $(LDSCRIPT)),)
LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
endif
ifeq ($(wildcard $(LDSCRIPT)),)
LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
endif
ifeq ($(wildcard $(LDSCRIPT)),)
$(error could not find linker script)
endif
# Special flags for CPP when processing the linker script.
# Pass the version down so we can handle backwards compatibility
# on the fly.
LDPPFLAGS += \
-include $(srctree)/include/u-boot/u-boot.lds.h \
-include $(objtree)/include/config.h \
-DCPUDIR=$(CPUDIR) \
$(shell $(LD) --version | \
sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
# Turn various CONFIG symbols into IMAGE symbols for easy reuse of
# the scripts between SPL and TPL.
ifneq ($(CONFIG_$(SPL_TPL_)MAX_SIZE),)
LDPPFLAGS += -DIMAGE_MAX_SIZE=$(CONFIG_$(SPL_TPL_)MAX_SIZE)
endif
ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
LDPPFLAGS += -DIMAGE_TEXT_BASE=$(CONFIG_$(SPL_TPL_)TEXT_BASE)
endif
MKIMAGEOUTPUT ?= /dev/null
quiet_cmd_mkimage = MKIMAGE $@
cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
quiet_cmd_mkfitimage = MKIMAGE $@
cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \
$(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT)
MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
$(call if_changed,mkimage)
ifeq ($(CONFIG_SYS_SOC),"at91")
MKIMAGEFLAGS_boot.bin = -T atmelimage
ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
$(obj)/boot.bin: $(obj)/../tools/atmel_pmecc_params
endif
$(obj)/boot.bin: $(obj)/u-boot-spl.bin FORCE
$(call if_changed,mkimage)
else
ifdef CONFIG_ARCH_ZYNQ
MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
endif
ifdef CONFIG_ARCH_ZYNQMP
arm64: zynqmp: accept an absolute path for PMUFW_INIT_FILE The value of PMUFW_INIT_FILE is prefixed with "$(srctree)/", thus forcing it to be a relative path inside the U-Boot source tree. Since the PMUFW is a binary file generated outside of U-Boot, the PMUFW binary must be copied inside the U-Boot source tree before the build. This generates a few problems: * if the source tree is shared among different out-of-tree builds, they will pollute (and potentially corrupt) each other * the source tree cannot be read-only * any buildsystem must add a command to copy the PMUFW binary * putting an externally-generated binary in the source tree is ugly as hell Avoid these problems by accepting an absolute path for PMUFW_INIT_FILE. This would be as simple as removing the "$(srctree)/" prefix, but in order to keep backward compatibility we rather use the shell and readlink to get the absolute path even when starting from a relative path. Since 'readlink -f' produces an empty string if the file does not exist, we also add a check to ensure the file configured in PMUFW_INIT_FILE exists. Otherwise the build would exit successfully, but produce a boot.bin without PMUFW as if PMUFW_INIT_FILE were empty. Tested in the 12 possible combinations of: - PMUFW_INIT_FILE empty, relative, absolute, non-existing - building in-tree, in subdir, in other directory Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Simon Glass <sjg@chromium.org> Cc: Emmanuel Vadot <manu@bidouilliste.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-06-04 10:21:01 +00:00
ifneq ($(CONFIG_PMUFW_INIT_FILE),"")
spl/boot.bin: zynqmp-check-pmufw
zynqmp-check-pmufw: FORCE
( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \
|| ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false )
endif
MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \
arm64: zynqmp: accept an absolute path for PMUFW_INIT_FILE The value of PMUFW_INIT_FILE is prefixed with "$(srctree)/", thus forcing it to be a relative path inside the U-Boot source tree. Since the PMUFW is a binary file generated outside of U-Boot, the PMUFW binary must be copied inside the U-Boot source tree before the build. This generates a few problems: * if the source tree is shared among different out-of-tree builds, they will pollute (and potentially corrupt) each other * the source tree cannot be read-only * any buildsystem must add a command to copy the PMUFW binary * putting an externally-generated binary in the source tree is ugly as hell Avoid these problems by accepting an absolute path for PMUFW_INIT_FILE. This would be as simple as removing the "$(srctree)/" prefix, but in order to keep backward compatibility we rather use the shell and readlink to get the absolute path even when starting from a relative path. Since 'readlink -f' produces an empty string if the file does not exist, we also add a check to ensure the file configured in PMUFW_INIT_FILE exists. Otherwise the build would exit successfully, but produce a boot.bin without PMUFW as if PMUFW_INIT_FILE were empty. Tested in the 12 possible combinations of: - PMUFW_INIT_FILE empty, relative, absolute, non-existing - building in-tree, in subdir, in other directory Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Simon Glass <sjg@chromium.org> Cc: Emmanuel Vadot <manu@bidouilliste.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-06-04 10:21:01 +00:00
-n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))"
endif
$(obj)/$(SPL_BIN)-align.bin: $(obj)/$(SPL_BIN).bin
@dd if=$< of=$@ conv=block,sync bs=4 2>/dev/null;
spl/boot.bin: $(obj)/$(SPL_BIN)-align.bin FORCE
$(call if_changed,mkimage)
endif
INPUTS-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).sym
ifdef CONFIG_SAMSUNG
INPUTS-y += $(obj)/$(BOARD)-spl.bin
endif
ifneq ($(CONFIG_TARGET_SOCFPGA_GEN5)$(CONFIG_TARGET_SOCFPGA_ARRIA10),)
INPUTS-y += $(obj)/$(SPL_BIN).sfp
endif
INPUTS-$(CONFIG_TARGET_SOCFPGA_SOC64) += $(obj)/u-boot-spl-dtb.hex
ifdef CONFIG_ARCH_SUNXI
INPUTS-y += $(obj)/sunxi-spl.bin
ifdef CONFIG_NAND_SUNXI
INPUTS-y += $(obj)/sunxi-spl-with-ecc.bin
endif
endif
ifeq ($(CONFIG_SYS_SOC),"at91")
INPUTS-y += $(obj)/boot.bin
endif
ifdef CONFIG_TPL_BUILD
INPUTS-$(CONFIG_TPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-tpl.bin \
$(obj)/u-boot-x86-reset16-tpl.bin
else
INPUTS-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-spl.bin \
$(obj)/u-boot-x86-reset16-spl.bin
endif
INPUTS-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin
INPUTS-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin
INPUTS-$(CONFIG_ARCH_MEDIATEK) += $(obj)/u-boot-spl-mtk.bin
all: $(INPUTS-y)
quiet_cmd_cat = CAT $@
cmd_cat = cat $(filter-out $(PHONY), $^) > $@
quiet_cmd_copy = COPY $@
cmd_copy = cp $< $@
ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y)
FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb
else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y)
FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo
else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y)
FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz
else
FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit
endif
# Build the .dtb file if needed
# - OF_REAL is enabled
# - we have either OF_SEPARATE or OF_HOSTFILE
build_dtb :=
ifneq ($(CONFIG_$(SPL_TPL_)OF_REAL),)
ifeq ($(CONFIG_OF_SEPARATE)$(CONFIG_SANDBOX),y)
build_dtb := y
endif
endif
ifneq ($(build_dtb),)
$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
$(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
$(FINAL_DTB_CONTAINER) FORCE
$(call if_changed,cat)
$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
$(call if_changed,copy)
else
$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
$(call if_changed,copy)
endif
# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
@bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
$(obj)/$(SPL_BIN).dtb: $(obj)/dts/dt-$(SPL_NAME).dtb FORCE
$(call if_changed,copy)
pythonpath = PYTHONPATH=scripts/dtc/pylibfdt
DTOC_ARGS := $(pythonpath) $(srctree)/tools/dtoc/dtoc \
-d $(obj)/$(SPL_BIN).dtb -p $(SPL_NAME)
ifneq ($(CONFIG_$(SPL_TPL_)OF_PLATDATA_INST),)
DTOC_ARGS += -i
endif
quiet_cmd_dtoc = DTOC $@
cmd_dtoc = $(DTOC_ARGS) -c $(obj)/dts -C include/generated all
quiet_cmd_plat = PLAT $@
cmd_plat = $(CC) $(c_flags) -c $< -o $(filter-out $(PHONY),$@)
$(obj)/dts/dt-%.o: $(obj)/dts/dt-%.c $(platdata-hdr)
$(call if_changed,plat)
# Don't use dts_dir here, since it forces running this expensive rule every time
$(platdata-hdr) $(u-boot-spl-platdata_c) &: $(obj)/$(SPL_BIN).dtb
@[ -d $(obj)/dts ] || mkdir -p $(obj)/dts
@# Remove old files since which ones we generate depends on the setting
@# of OF_PLATDATA_INST and this might change between builds. Leaving old
@# ones around is confusing and it is possible that switching the
@# setting again will use the old one instead of regenerating it.
@rm -f $(u-boot-spl-all-platdata_c) $(u-boot-spl-all-platdata)
$(call if_changed,dtoc)
ifdef CONFIG_SAMSUNG
ifdef CONFIG_VAR_SIZE_SPL
VAR_SIZE_PARAM = --vs
else
VAR_SIZE_PARAM =
endif
$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
$(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
$(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
$(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
endif
quiet_cmd_objcopy = OBJCOPY $@
cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
$(if $(CONFIG_$(SPL_TPL_)X86_16BIT_INIT),-R .start16 -R .resetvec)
$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
$(call if_changed,objcopy)
OBJCOPYFLAGS_u-boot-x86-start16-spl.bin := -O binary -j .start16
$(obj)/u-boot-x86-start16-spl.bin: $(obj)/u-boot-spl FORCE
$(call if_changed,objcopy)
OBJCOPYFLAGS_u-boot-x86-start16-tpl.bin := -O binary -j .start16
$(obj)/u-boot-x86-start16-tpl.bin: $(obj)/u-boot-tpl FORCE
$(call if_changed,objcopy)
OBJCOPYFLAGS_u-boot-x86-reset16-spl.bin := -O binary -j .resetvec
$(obj)/u-boot-x86-reset16-spl.bin: $(obj)/u-boot-spl FORCE
$(call if_changed,objcopy)
OBJCOPYFLAGS_u-boot-x86-reset16-tpl.bin := -O binary -j .resetvec
$(obj)/u-boot-x86-reset16-tpl.bin: $(obj)/u-boot-tpl FORCE
$(call if_changed,objcopy)
LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
LDFLAGS_$(SPL_BIN) += --build-id=none
# Pick the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
endif
ifdef CONFIG_TARGET_SOCFPGA_ARRIA10
MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1
else
MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
endif
$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
$(call if_changed,mkimage)
MKIMAGEFLAGS_sunxi-spl.bin = -T sunxi_egon \
-n $(CONFIG_DEFAULT_DEVICE_TREE)
OBJCOPYFLAGS_u-boot-spl-dtb.hex := -I binary -O ihex --change-address=$(CONFIG_SPL_TEXT_BASE)
$(obj)/u-boot-spl-dtb.hex: $(obj)/u-boot-spl-dtb.bin FORCE
$(call if_changed,objcopy)
$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
$(call if_changed,mkimage)
quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
-c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
-p $(CONFIG_SYS_NAND_PAGE_SIZE) \
-o $(CONFIG_SYS_NAND_OOBSIZE) \
-u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
-e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
-s -b $< $@
$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
$(call if_changed,sunxi_spl_image_builder)
# MediaTek's specific SPL build
MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \
-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \
-n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
$(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE
$(call if_changed,mkimage)
quiet_cmd_sym ?= SYM $@
cmd_sym ?= $(OBJDUMP) -t $< > $@
$(obj)/$(SPL_BIN).sym: $(obj)/$(SPL_BIN) FORCE
$(call if_changed,sym)
# Generate linker list symbols references to force compiler to not optimize
# them away when compiling with LTO
ifdef CONFIG_LTO
u-boot-spl-keep-syms-lto := $(obj)/keep-syms-lto.o
u-boot-spl-keep-syms-lto_c := \
$(patsubst $(obj)/%.o,$(obj)/%.c,$(u-boot-spl-keep-syms-lto))
quiet_cmd_keep_syms_lto = KSL $@
cmd_keep_syms_lto = \
$(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
quiet_cmd_keep_syms_lto_cc = KSLCC $@
cmd_keep_syms_lto_cc = \
$(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
$(u-boot-spl-keep-syms-lto_c): $(u-boot-spl-main) $(u-boot-spl-platdata)
$(call if_changed,keep_syms_lto)
$(u-boot-spl-keep-syms-lto): $(u-boot-spl-keep-syms-lto_c)
$(call if_changed,keep_syms_lto_cc)
else
u-boot-spl-keep-syms-lto :=
endif
# Rule to link u-boot-spl
# May be overridden by arch/$(ARCH)/config.mk
ifdef CONFIG_LTO
quiet_cmd_u-boot-spl ?= LTO $@
cmd_u-boot-spl ?= \
( \
cd $(obj) && \
$(CC) -nostdlib -nostartfiles $(LTO_FINAL_LDFLAGS) $(c_flags) \
$(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_$(@F):%=-Wl,%) \
$(patsubst $(obj)/%,%,$(u-boot-spl-init)) \
-Wl,--whole-archive \
$(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
$(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
$(patsubst $(obj)/%,%,$(u-boot-spl-keep-syms-lto)) \
$(PLATFORM_LIBS) \
-Wl,--no-whole-archive \
-Wl,-Map,$(SPL_BIN).map -o $(SPL_BIN) \
)
else
quiet_cmd_u-boot-spl ?= LD $@
cmd_u-boot-spl ?= \
( \
cd $(obj) && \
$(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_$(@F)) \
$(patsubst $(obj)/%,%,$(u-boot-spl-init)) \
--whole-archive \
$(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
$(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
--no-whole-archive \
$(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN) \
)
endif
$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
$(u-boot-spl-main) $(u-boot-spl-keep-syms-lto) \
$(obj)/u-boot-spl.lds FORCE
$(call if_changed,u-boot-spl)
$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
PHONY += $(u-boot-spl-dirs)
$(u-boot-spl-dirs): $(u-boot-spl-platdata) prepare
$(Q)$(MAKE) $(build)=$@
PHONY += prepare
prepare:
$(Q)$(MAKE) $(build)=$(obj)/.
quiet_cmd_cpp_lds = LDS $@
cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
-D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
$(call if_changed_dep,cpp_lds)
# read all saved command lines
targets := $(wildcard $(sort $(targets)))
cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
ifneq ($(cmd_files),)
$(cmd_files): ; # Do not try to update included dependency files
include $(cmd_files)
endif
PHONY += FORCE
FORCE:
$(obj)/dts/dt-$(SPL_NAME).dtb: dts/dt.dtb
$(Q)$(MAKE) $(build)=$(obj)/dts spl_dtbs
PHONY += dts_dir
dts_dir:
$(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
# Declare the contents of the .PHONY variable as phony. We keep that
# information in a variable so we can use it in if_changed and friends.
.PHONY: $(PHONY)
SPL_OF_LIST_TARGETS = $(patsubst %,dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST)))
SHRUNK_ARCH_DTB = $(addprefix $(obj)/,$(SPL_OF_LIST_TARGETS))
.SECONDEXPANSION:
$(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) dts_dir
$(call if_changed,fdtgrep)
targets += $(SPL_OF_LIST_TARGETS)
MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
-n "Multi DTB fit image for $(SPL_BIN)" -E \
$(patsubst %,-b %,$(SHRUNK_ARCH_DTB))
$(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE
$(call if_changed,mkimage)
ifneq ($(SOURCE_DATE_EPOCH),)
touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit
chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit
endif
$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit
@gzip -kf9 $< > $@
$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit
@lzop -f9 $< > $@
ifdef CONFIG_ARCH_K3
tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE
$(call if_changed,mkfitimage)
endif