559d1e45a1
To circumvent an issue where placing the relocations inside the init sections produces empty relocations, use --emit-relocs. But to avoid carrying those relocations in vmlinux, use an intermediate vmlinux.relocs file which is a copy of vmlinux *before* stripping its relocations. Suggested-by: Björn Töpel <bjorn@kernel.org> Suggested-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Link: https://lore.kernel.org/r/20230329045329.64565-7-alexghiti@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
77 lines
2.0 KiB
Makefile
77 lines
2.0 KiB
Makefile
#
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# arch/riscv/boot/Makefile
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies.
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 2018, Anup Patel.
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# Author: Anup Patel <anup@brainfault.org>
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#
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# Based on the ia64 and arm64 boot/Makefile.
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#
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KCOV_INSTRUMENT := n
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OBJCOPYFLAGS_Image :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
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OBJCOPYFLAGS_xipImage :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
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targets := Image Image.* loader loader.o loader.lds loader.bin
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targets := Image Image.* loader loader.o loader.lds loader.bin xipImage
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ifeq ($(CONFIG_XIP_KERNEL),y)
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quiet_cmd_mkxip = $(quiet_cmd_objcopy)
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cmd_mkxip = $(cmd_objcopy)
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$(obj)/xipImage: vmlinux FORCE
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$(call if_changed,mkxip)
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@$(kecho) ' Physical Address of xipImage: $(CONFIG_XIP_PHYS_ADDR)'
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endif
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ifdef CONFIG_RELOCATABLE
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vmlinux.relocs: vmlinux
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@ (! [ -f vmlinux.relocs ] && echo "vmlinux.relocs can't be found, please remove vmlinux and try again") || true
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$(obj)/Image: vmlinux.relocs FORCE
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else
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$(obj)/Image: vmlinux FORCE
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endif
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$(call if_changed,objcopy)
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$(obj)/Image.gz: $(obj)/Image FORCE
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$(call if_changed,gzip)
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$(obj)/loader.o: $(src)/loader.S $(obj)/Image
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$(obj)/loader: $(obj)/loader.o $(obj)/Image $(obj)/loader.lds FORCE
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$(Q)$(LD) -T $(obj)/loader.lds -o $@ $(obj)/loader.o
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$(obj)/Image.bz2: $(obj)/Image FORCE
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$(call if_changed,bzip2)
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$(obj)/Image.lz4: $(obj)/Image FORCE
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$(call if_changed,lz4)
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$(obj)/Image.lzma: $(obj)/Image FORCE
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$(call if_changed,lzma)
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$(obj)/Image.lzo: $(obj)/Image FORCE
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$(call if_changed,lzo)
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$(obj)/Image.zst: $(obj)/Image FORCE
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$(call if_changed,zstd)
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$(obj)/loader.bin: $(obj)/loader FORCE
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$(call if_changed,objcopy)
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EFI_ZBOOT_PAYLOAD := Image
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EFI_ZBOOT_BFD_TARGET := elf$(BITS)-littleriscv
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EFI_ZBOOT_MACH_TYPE := RISCV$(BITS)
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include $(srctree)/drivers/firmware/efi/libstub/Makefile.zboot
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