mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 02:36:39 +09:00
3809e30273
On some systems `python` is `python3` (for instance, Archlinux). The `PYTHON` variable can be used to point to `python2` to have a successful build. The use of `PYTHON` is currently limited in the Makefile and needs to be extended in other places: First, pylibfdt is required to be a Python 2 binding (binman imports pylibfdt and is only compatible Python 2), so its setup.py needs to be called accordingly. An alternative would be to change the libfdt setup.py shebang to python2, but the binding is actually portable. Also, it would break on system where there is no such thing as `python2`. Secondly, the libfdt import checks need to be done against Python 2 as well since the Python 2 compiled modules (in this case _libdft.so) can not be imported from Python 3. Note on the libfdt imports: "@if ! PYTHONPATH=tools $(PYTHON) -c 'import libfdt'; then..." is probably simpler than the currently sub-optimal pipe. Reviewed-by: Jonathan Gray <jsg@jsg.id.au>
388 lines
12 KiB
Makefile
388 lines
12 KiB
Makefile
#
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# (C) Copyright 2000-2011
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# (C) Copyright 2011
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# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
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#
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# (C) Copyright 2011
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# Texas Instruments Incorporated - http://www.ti.com/
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# Aneesh V <aneesh@ti.com>
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Based on top-level Makefile.
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#
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src := $(obj)
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# Create output directory if not already present
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_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
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include $(srctree)/scripts/Kbuild.include
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-include include/config/auto.conf
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-include $(obj)/include/autoconf.mk
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KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
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ifeq ($(CONFIG_TPL_BUILD),y)
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KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
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endif
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ifeq ($(CONFIG_TPL_BUILD),y)
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SPL_BIN := u-boot-tpl
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else
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SPL_BIN := u-boot-spl
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endif
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ifdef CONFIG_SPL_BUILD
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SPL_ := SPL_
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ifeq ($(CONFIG_TPL_BUILD),y)
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SPL_TPL_ := TPL_
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else
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SPL_TPL_ := SPL_
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endif
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else
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SPL_ :=
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SPL_TPL_ :=
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endif
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include $(srctree)/config.mk
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include $(srctree)/arch/$(ARCH)/Makefile
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# Enable garbage collection of un-used sections for SPL
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KBUILD_CFLAGS += -ffunction-sections -fdata-sections
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LDFLAGS_FINAL += --gc-sections
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# FIX ME
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cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
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$(NOSTDINC_FLAGS)
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c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
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HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
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libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
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libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
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libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
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libs-y += common/init/
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# Special handling for a few options which support SPL/TPL
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ifeq ($(CONFIG_TPL_BUILD),y)
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libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
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libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
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else
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libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
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libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
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endif
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libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
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libs-y += drivers/
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libs-$(CONFIG_SPL_USB_GADGET_SUPPORT) += drivers/usb/dwc3/
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libs-y += dts/
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libs-y += fs/
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libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
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libs-$(CONFIG_SPL_NET_SUPPORT) += net/
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head-y := $(addprefix $(obj)/,$(head-y))
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libs-y := $(addprefix $(obj)/,$(libs-y))
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u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
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libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
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# Add GCC lib
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ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
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PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
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PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
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endif
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u-boot-spl-init := $(head-y)
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u-boot-spl-main := $(libs-y)
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ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA
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u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
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endif
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# Linker Script
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# First test whether there's a linker-script for the specific stage defined...
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ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),)
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# need to strip off double quotes
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LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%))
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else
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# ...then fall back to the generic SPL linker-script
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ifneq ($(CONFIG_SPL_LDSCRIPT),)
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# need to strip off double quotes
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LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
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endif
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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$(error could not find linker script)
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endif
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# Special flags for CPP when processing the linker script.
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# Pass the version down so we can handle backwards compatibility
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# on the fly.
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LDPPFLAGS += \
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-include $(srctree)/include/u-boot/u-boot.lds.h \
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-include $(objtree)/include/config.h \
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-DCPUDIR=$(CPUDIR) \
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$(shell $(LD) --version | \
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sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
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MKIMAGEOUTPUT ?= /dev/null
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quiet_cmd_mkimage = MKIMAGE $@
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cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
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$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
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MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
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MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
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MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
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$(call if_changed,mkimage)
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ifeq ($(CONFIG_SYS_SOC),"at91")
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MKIMAGEFLAGS_boot.bin = -T atmelimage
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ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
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MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
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boot.bin: $(obj)/../tools/atmel_pmecc_params
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endif
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boot.bin: $(obj)/u-boot-spl.bin FORCE
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$(call if_changed,mkimage)
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else
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ifdef CONFIG_ARCH_ZYNQ
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MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
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endif
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ifdef CONFIG_ARCH_ZYNQMP
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MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
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endif
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spl/boot.bin: $(obj)/u-boot-spl.bin FORCE
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$(call if_changed,mkimage)
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endif
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ALL-y += $(obj)/$(SPL_BIN).bin
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ifdef CONFIG_SAMSUNG
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ALL-y += $(obj)/$(BOARD)-spl.bin
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endif
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ifdef CONFIG_ARCH_SOCFPGA
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ALL-y += $(obj)/$(SPL_BIN).sfp
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endif
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ifdef CONFIG_ARCH_SUNXI
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ALL-y += $(obj)/sunxi-spl.bin
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ifdef CONFIG_NAND_SUNXI
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ALL-y += $(obj)/sunxi-spl-with-ecc.bin
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endif
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endif
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ifeq ($(CONFIG_SYS_SOC),"at91")
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ALL-y += boot.bin
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endif
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ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin
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ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin
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ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin
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all: $(ALL-y)
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quiet_cmd_cat = CAT $@
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cmd_cat = cat $(filter-out $(PHONY), $^) > $@
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quiet_cmd_copy = COPY $@
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cmd_copy = cp $< $@
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ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy)
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$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
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$(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
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$(obj)/$(SPL_BIN).dtb FORCE
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$(call if_changed,cat)
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$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
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$(call if_changed,copy)
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else
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$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
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$(call if_changed,copy)
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endif
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# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
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$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
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@bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
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dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
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# Pass the original device tree file through fdtgrep twice. The first pass
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# removes any unwanted nodes (i.e. those which don't have the
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# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
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# pass removes various unused properties from the remaining nodes.
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# The output is typically a much smaller device tree file.
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ifeq ($(CONFIG_TPL_BUILD),y)
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fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl
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else
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fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-spl
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endif
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quiet_cmd_fdtgrep = FDTGREP $@
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cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -RT $< \
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-n /chosen -n /config -O dtb | \
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$(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
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$(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
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$(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE
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$(call if_changed,fdtgrep)
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pythonpath = PYTHONPATH=tools
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quiet_cmd_dtocc = DTOC C $@
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cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
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quiet_cmd_dtoch = DTOC H $@
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cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
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quiet_cmd_plat = PLAT $@
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cmd_plat = $(CC) $(c_flags) -c $< -o $@
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$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c include/generated/dt-structs.h
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$(call if_changed,plat)
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PHONY += dts_dir
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dts_dir:
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$(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
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include/generated/dt-structs.h: $(obj)/$(SPL_BIN).dtb dts_dir checkdtoc
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$(call if_changed,dtoch)
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$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir checkdtoc
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$(call if_changed,dtocc)
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ifdef CONFIG_SAMSUNG
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ifdef CONFIG_VAR_SIZE_SPL
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VAR_SIZE_PARAM = --vs
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else
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VAR_SIZE_PARAM =
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endif
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$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
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$(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
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$(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
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$(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
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endif
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quiet_cmd_objcopy = OBJCOPY $@
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cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
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OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
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$(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec)
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$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
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$(call if_changed,objcopy)
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OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec
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$(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE
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$(call if_changed,objcopy)
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LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
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# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
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LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
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# First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
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ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
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LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
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else
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# And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode
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ifneq ($(CONFIG_SPL_TEXT_BASE),)
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LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
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endif
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endif
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MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
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$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
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$(call if_changed,mkimage)
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quiet_cmd_mksunxiboot = MKSUNXI $@
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cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \
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--default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@
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$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
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$(call if_changed,mksunxiboot)
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quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
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cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
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-c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
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-p $(CONFIG_SYS_NAND_PAGE_SIZE) \
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-o $(CONFIG_SYS_NAND_OOBSIZE) \
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-u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
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-e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
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-s -b $< $@
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$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
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$(call if_changed,sunxi_spl_image_builder)
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# Rule to link u-boot-spl
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# May be overridden by arch/$(ARCH)/config.mk
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quiet_cmd_u-boot-spl ?= LD $@
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cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
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$(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
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$(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
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$(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
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--end-group \
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$(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
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$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
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$(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
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$(call if_changed,u-boot-spl)
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$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
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PHONY += $(u-boot-spl-dirs)
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$(u-boot-spl-dirs): $(u-boot-spl-platdata)
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$(Q)$(MAKE) $(build)=$@
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quiet_cmd_cpp_lds = LDS $@
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cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
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-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
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$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
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$(call if_changed_dep,cpp_lds)
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# read all saved command lines
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targets := $(wildcard $(sort $(targets)))
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cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
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ifneq ($(cmd_files),)
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$(cmd_files): ; # Do not try to update included dependency files
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include $(cmd_files)
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endif
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checkdtoc: tools
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@if ! ( echo 'import libfdt' | ( PYTHONPATH=tools $(PYTHON) )); then \
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echo '*** dtoc needs the Python libfdt library. Either '; \
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echo '*** install it on your system, or try:'; \
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echo '***'; \
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echo '*** sudo apt-get install swig libpython-dev'; \
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echo '***'; \
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echo '*** to have U-Boot build its own version.'; \
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false; \
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fi
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PHONY += FORCE
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FORCE:
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# Declare the contents of the .PHONY variable as phony. We keep that
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# information in a variable so we can use it in if_changed and friends.
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.PHONY: $(PHONY)
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