From f4dc714aaa2d86b84724ec01fb848da63aa63666 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Sat, 14 Dec 2013 11:47:33 +0800 Subject: [PATCH] arm64: Turn u-boot.bin back into an ELF file after relocate-rela While performing relocations on u-boot.bin should be good enough for booting on real hardware, some simulators insist on booting an ELF file (and yet don't perform ELF relocations), so convert the relocated binary back into an ELF file. This can go away in the future if we change relocate-rela to operate directly on the ELF file, or if and when we stop caring about a simulator with this restriction. Signed-off-by: Scott Wood Signed-off-by: David Feng --- Makefile | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/Makefile b/Makefile index 85a9330f10..a4c2928eb6 100644 --- a/Makefile +++ b/Makefile @@ -358,6 +358,7 @@ ALL-$(CONFIG_OF_SEPARATE) += $(obj)u-boot.dtb $(obj)u-boot-dtb.bin ifneq ($(CONFIG_SPL_TARGET),) ALL-$(CONFIG_SPL) += $(obj)$(subst ",,$(CONFIG_SPL_TARGET)) endif +ALL-$(CONFIG_REMAKE_ELF) += $(obj)u-boot.elf # enable combined SPL/u-boot/dtb rules for tegra ifneq ($(CONFIG_TEGRA),) @@ -528,6 +529,18 @@ $(obj)u-boot-img-spl-at-end.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img conv=notrunc 2>/dev/null cat $(obj)u-boot-pad.img $(obj)spl/u-boot-spl.bin > $@ +# Create a new ELF from a raw binary file. This is useful for arm64 +# where static relocation needs to be performed on the raw binary, +# but certain simulators only accept an ELF file (but don't do the +# relocation). +# FIXME refactor dts/Makefile to share target/arch detection +$(obj)u-boot.elf: $(obj)u-boot.bin + @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ + $< $(obj)u-boot-elf.o + @$(LD) $(obj)u-boot-elf.o -o $@ \ + --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ + -Ttext=$(CONFIG_SYS_TEXT_BASE) + ifeq ($(CONFIG_SANDBOX),y) GEN_UBOOT = \ cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \ -- 2.25.1