mirror of
https://github.com/brain-hackers/u-boot-brain
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![Haiying Wang](/assets/img/avatar_default.png)
commit 8aba9dceeb
Divides variable of linker flags to LDFLAGS-u-boot and LDFLAGS
breaks the usage of --gc-section to build nand_spl. We still need linker option
--gc-section for every uboot image, not only the main one. LDFLAGS_FINAL passes
the --gc-sections to each uboot image.
To get the proper linker flags, we use LDFLAGS and LDFLAGS_FINAL to replace
PLATFORM_LDFLAGS in the Makefile of each nand_spl board.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
143 lines
3.7 KiB
Makefile
143 lines
3.7 KiB
Makefile
#
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# (C) Copyright 2006-2007
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# Stefan Roese, DENX Software Engineering, sr@denx.de.
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#
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# (C) Copyright 2008
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# Guennadi Liakhovetki, DENX Software Engineering, <lg@denx.de>
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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CONFIG_NAND_SPL = y
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include $(TOPDIR)/config.mk
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LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
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LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
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$(LDFLAGS_FINAL)
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AFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL
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CFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL
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SOBJS = start.o _udivsi3.o _divsi3.o
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COBJS = cpu.o davinci_nand.o ns16550.o div0.o davinci_pinmux.o psc.o \
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misc.o hawkboard_nand_spl.o nand_boot.o
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SRCS := $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
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OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
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__OBJS := $(SOBJS) $(COBJS)
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LNDIR := $(OBJTREE)/nand_spl/board/$(BOARDDIR)
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nandobj := $(OBJTREE)/nand_spl/
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ALL = $(nandobj)u-boot-spl $(nandobj)u-boot-spl.bin \
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$(nandobj)u-boot-spl-16k.bin
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all: $(ALL)
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$(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
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$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(PAD_TO) -O binary $< $@
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$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
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$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
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$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
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cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
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-Map $(nandobj)u-boot-spl.map \
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-o $(nandobj)u-boot-spl
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$(nandobj)u-boot.lds: $(LDSCRIPT)
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$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
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# create symbolic links for common files
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# from board directory
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$(obj)davinci_pinmux.c:
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@rm -f $@
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@ln -s $(TOPDIR)/board/davinci/common/davinci_pinmux.c $@
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# from drivers/mtd/nand directory
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$(obj)davinci_nand.c:
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@rm -f $@
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@ln -s $(TOPDIR)/drivers/mtd/nand/davinci_nand.c $@
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# from nand_spl directory
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$(obj)nand_boot.c:
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@rm -f $@
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@ln -s $(TOPDIR)/nand_spl/nand_boot.c $@
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# from drivers/serial directory
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$(obj)ns16550.c:
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@rm -f $@
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@ln -sf $(TOPDIR)/drivers/serial/ns16550.c $@
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# from cpu directory
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$(obj)start.S:
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@rm -f $@
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ln -s $(TOPDIR)/arch/arm/cpu/arm926ejs/start.S $@
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# from lib directory
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$(obj)_udivsi3.S:
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@rm -f $@
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ln -s $(TOPDIR)/arch/arm/lib/_udivsi3.S $@
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# from lib directory
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$(obj)_divsi3.S:
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@rm -f $@
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ln -s $(TOPDIR)/arch/arm/lib/_divsi3.S $@
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# from lib directory
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$(obj)div0.c:
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@rm -f $@
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ln -s $(TOPDIR)/arch/arm/lib/div0.c $@
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# from SoC directory
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$(obj)cpu.c:
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@rm -f $@
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@ln -s $(TOPDIR)/arch/arm/cpu/arm926ejs/davinci/cpu.c $@
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# from board directory
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$(obj)hawkboard_nand_spl.c:
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@rm -f $@
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ln -s $(TOPDIR)/board/davinci/da8xxevm/hawkboard_nand_spl.c $@
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# from board directory
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$(obj)misc.c:
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@rm -f $@
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ln -s $(TOPDIR)/board/davinci/common/misc.c $@
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$(obj)psc.c:
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@rm -f $@
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ln -s $(TOPDIR)/arch/arm/cpu/arm926ejs/davinci/psc.c $@
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#########################################################################
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$(obj)%.o: $(obj)%.S
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$(CC) $(AFLAGS) -c -o $@ $<
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$(obj)%.o: $(obj)%.c
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$(CC) $(CFLAGS) -c -o $@ $<
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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