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ab4ce9831a
The Image.* targets existed for other compressors already. Bootloader
support is needed for decompression.
This is for CONFIG_EFI_ZBOOT=n. With CONFIG_EFI_ZBOOT=y, XZ was already
available.
Comparision with Linux 6.10 RV64GC tinyconfig (in KiB):
1027 Image
594 Image.gz
541 Image.zst
510 Image.lzma
474 Image.xz
Link: https://lkml.kernel.org/r/20240721133633.47721-17-lasse.collin@tukaani.org
Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Jules Maselbas <jmaselbas@zdiv.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jubin Zhong <zhongjubin@huawei.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Rui Li <me@lirui.org>
Cc: Sam James <sam@gentoo.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
78 lines
2.0 KiB
Makefile
78 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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OBJCOPYFLAGS_Image :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
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OBJCOPYFLAGS_loader.bin :=-O binary
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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 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)/Image.xz: $(obj)/Image FORCE
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$(call if_changed,xzkern)
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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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