mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 11:16:15 +09:00
6825a95b0b
Now we are ready to switch over to real Kbuild.
This commit disables temporary scripts:
scripts/{Makefile.build.tmp, Makefile.host.tmp}
and enables real Kbuild scripts:
scripts/{Makefile.build,Makefile.host,Makefile.lib}.
This switch is triggered by the line in scripts/Kbuild.include
-build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj
+build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
We need to adjust some build scripts for U-Boot.
But smaller amount of modification is preferable.
Additionally, we need to fix compiler flags which are
locally added or removed.
In Kbuild, it is not allowed to change CFLAGS locally.
Instead, ccflags-y, asflags-y, cppflags-y,
CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o
are prepared for that purpose.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Gerhard Sittig <gsi@denx.de>
214 lines
6.0 KiB
Makefile
214 lines
6.0 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 $(srctree)/scripts/Kbuild.include
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CONFIG_SPL_BUILD := y
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export CONFIG_SPL_BUILD
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KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
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ifeq ($(CONFIG_TPL_BUILD),y)
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KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
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endif
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# 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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ifeq ($(CONFIG_TPL_BUILD),y)
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export CONFIG_TPL_BUILD
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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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include $(TOPDIR)/config.mk
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HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
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ifdef CONFIG_SPL_START_S_PATH
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START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
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else
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START_PATH := $(CPUDIR)
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endif
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head-y := $(START_PATH)/start.o
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head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o
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head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o
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head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o
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LIBS-y += arch/$(ARCH)/lib/
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LIBS-y += $(CPUDIR)/
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ifdef SOC
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LIBS-y += $(CPUDIR)/$(SOC)/
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endif
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LIBS-y += 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-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
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LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
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LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
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LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
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LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
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LIBS-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
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LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
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LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
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LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
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LIBS-y += fs/
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LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
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LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ \
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drivers/power/pmic/
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LIBS-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/
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LIBS-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
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LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
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LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
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LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
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LIBS-$(CONFIG_SPL_NET_SUPPORT) += net/
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LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
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LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
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LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
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LIBS-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
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LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
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LIBS-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
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LIBS-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
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LIBS-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
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LIBS-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
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ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
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LIBS-y += arch/$(ARCH)/imx-common/
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endif
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LIBS-$(CONFIG_ARM) += arch/arm/cpu/
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LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
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LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
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# Add GCC lib
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ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
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PLATFORM_LIBS := $(SPLTREE)/arch/$(ARCH)/lib/lib.a
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endif
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LIBS-y := $(sort $(LIBS-y))
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__START := $(head-y)
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__LIBS := $(LIBS-y)
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START := $(addprefix $(obj)/,$(head-y))
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LIBS := $(addprefix $(obj)/,$(LIBS-y))
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# Linker Script
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ifdef 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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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(TOPDIR)/arch/$(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 $(TOPDIR)/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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$(OBJTREE)/MLO: $(obj)/u-boot-spl.bin
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$(OBJTREE)/tools/mkimage -T omapimage \
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-a $(CONFIG_SPL_TEXT_BASE) -d $< $@
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$(OBJTREE)/MLO.byteswap: $(obj)/u-boot-spl.bin
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$(OBJTREE)/tools/mkimage -T omapimage -n byteswap \
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-a $(CONFIG_SPL_TEXT_BASE) -d $< $@
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$(objtree)/SPL : $(obj)/u-boot-spl.bin
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$(MAKE) $(build)=spl/arch/arm/imx-common $@
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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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all: $(ALL-y)
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ifdef CONFIG_SAMSUNG
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ifdef CONFIG_VAR_SIZE_SPL
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VAR_SIZE_PARAM = --vs
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else
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VAR_SIZE_PARAM =
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endif
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$(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) $< $@
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endif
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$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)
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$(OBJCOPY) $(OBJCFLAGS) $(SPL_OBJCFLAGS) -O binary $< $@
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LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
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ifneq ($(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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GEN_UBOOT = \
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cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
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--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
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-Map $(SPL_BIN).map -o $(SPL_BIN)
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$(obj)/$(SPL_BIN): $(START) $(LIBS) $(obj)/u-boot-spl.lds
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$(GEN_UBOOT)
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$(START):
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@:
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$(LIBS):
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$(Q)$(MAKE) $(build)=$(patsubst %/,%,$(dir $@))
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# FIX ME
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cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
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$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
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$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
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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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