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linux/arch/riscv/boot/Makefile

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RISC-V: Build flat and compressed kernel images This patch extends Linux RISC-V build system to build and install: Image - Flat uncompressed kernel image Image.gz - Flat and GZip compressed kernel image Quiet a few bootloaders (such as Uboot, UEFI, etc) are capable of booting flat and compressed kernel images. In case of Uboot, booting Image or Image.gz is achieved using bootm command. The flat and uncompressed kernel image (i.e. Image) is very useful in pre-silicon developent and testing because we can create back-door HEX files for RAM on FPGAs from Image. Signed-off-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-11-12 11:25:15 +05:30
#
# arch/riscv/boot/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2018, Anup Patel.
# Author: Anup Patel <anup@brainfault.org>
#
# Based on the ia64 and arm64 boot/Makefile.
#
riscv: Allow building with kcov coverage Add ARCH_HAS_KCOV and HAVE_GCC_PLUGINS to the riscv Kconfig. Also disable instrumentation of some early boot code and vdso. Boot-tested on QEMU's riscv64 virt machine. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-06-26 14:40:56 +02:00
KCOV_INSTRUMENT := n
RISC-V: Build flat and compressed kernel images This patch extends Linux RISC-V build system to build and install: Image - Flat uncompressed kernel image Image.gz - Flat and GZip compressed kernel image Quiet a few bootloaders (such as Uboot, UEFI, etc) are capable of booting flat and compressed kernel images. In case of Uboot, booting Image or Image.gz is achieved using bootm command. The flat and uncompressed kernel image (i.e. Image) is very useful in pre-silicon developent and testing because we can create back-door HEX files for RAM on FPGAs from Image. Signed-off-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-11-12 11:25:15 +05:30
OBJCOPYFLAGS_Image :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
riscv: boot: Fix creation of loader.bin When flashing loader.bin for K210 using kflash:     [ERROR] This is an ELF file and cannot be programmed to flash directly: arch/riscv/boot/loader.bin Before, loader.bin relied on "OBJCOPYFLAGS := -O binary" in the main RISC-V Makefile to create a boot image with the right format. With this removed, the image is now created in the wrong (ELF) format. Fix this by adding an explicit rule. Fixes: 505b02957e74f0c5 ("riscv: Remove duplicate objcopy flag") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/1086025809583809538dfecaa899892218f44e7e.1698159066.git.geert+renesas@glider.be Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-10-24 16:53:18 +02:00
OBJCOPYFLAGS_loader.bin :=-O binary
RISC-V: enable XIP Introduce XIP (eXecute In Place) support for RISC-V platforms. It allows code to be executed directly from non-volatile storage directly addressable by the CPU, such as QSPI NOR flash which can be found on many RISC-V platforms. This makes way for significant optimization of RAM footprint. The XIP kernel is not compressed since it has to run directly from flash, so it will occupy more space on the non-volatile storage. The physical flash address used to link the kernel object files and for storing it has to be known at compile time and is represented by a Kconfig option. XIP on RISC-V will for the time being only work on MMU-enabled kernels. Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com> [Alex: Rebase on top of "Move kernel mapping outside the linear mapping" ] Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> [Palmer: disable XIP for allyesconfig] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-04-13 02:35:14 -04:00
OBJCOPYFLAGS_xipImage :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
RISC-V: Build flat and compressed kernel images This patch extends Linux RISC-V build system to build and install: Image - Flat uncompressed kernel image Image.gz - Flat and GZip compressed kernel image Quiet a few bootloaders (such as Uboot, UEFI, etc) are capable of booting flat and compressed kernel images. In case of Uboot, booting Image or Image.gz is achieved using bootm command. The flat and uncompressed kernel image (i.e. Image) is very useful in pre-silicon developent and testing because we can create back-door HEX files for RAM on FPGAs from Image. Signed-off-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-11-12 11:25:15 +05:30
riscv: Clean up boot dir Let's remove all files under riscv boot dir by using archclean rule. Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-11-04 14:15:00 +08:00
targets := Image Image.* loader loader.o loader.lds loader.bin
RISC-V: enable XIP Introduce XIP (eXecute In Place) support for RISC-V platforms. It allows code to be executed directly from non-volatile storage directly addressable by the CPU, such as QSPI NOR flash which can be found on many RISC-V platforms. This makes way for significant optimization of RAM footprint. The XIP kernel is not compressed since it has to run directly from flash, so it will occupy more space on the non-volatile storage. The physical flash address used to link the kernel object files and for storing it has to be known at compile time and is represented by a Kconfig option. XIP on RISC-V will for the time being only work on MMU-enabled kernels. Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com> [Alex: Rebase on top of "Move kernel mapping outside the linear mapping" ] Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> [Palmer: disable XIP for allyesconfig] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-04-13 02:35:14 -04:00
targets := Image Image.* loader loader.o loader.lds loader.bin xipImage
ifeq ($(CONFIG_XIP_KERNEL),y)
quiet_cmd_mkxip = $(quiet_cmd_objcopy)
cmd_mkxip = $(cmd_objcopy)
$(obj)/xipImage: vmlinux FORCE
$(call if_changed,mkxip)
@$(kecho) ' Physical Address of xipImage: $(CONFIG_XIP_PHYS_ADDR)'
endif
RISC-V: Build flat and compressed kernel images This patch extends Linux RISC-V build system to build and install: Image - Flat uncompressed kernel image Image.gz - Flat and GZip compressed kernel image Quiet a few bootloaders (such as Uboot, UEFI, etc) are capable of booting flat and compressed kernel images. In case of Uboot, booting Image or Image.gz is achieved using bootm command. The flat and uncompressed kernel image (i.e. Image) is very useful in pre-silicon developent and testing because we can create back-door HEX files for RAM on FPGAs from Image. Signed-off-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-11-12 11:25:15 +05:30
riscv: Use --emit-relocs in order to move .rela.dyn in init 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>
2023-03-29 06:53:29 +02:00
ifdef CONFIG_RELOCATABLE
vmlinux.relocs: vmlinux
@ (! [ -f vmlinux.relocs ] && echo "vmlinux.relocs can't be found, please remove vmlinux and try again") || true
$(obj)/Image: vmlinux.relocs FORCE
else
RISC-V: Build flat and compressed kernel images This patch extends Linux RISC-V build system to build and install: Image - Flat uncompressed kernel image Image.gz - Flat and GZip compressed kernel image Quiet a few bootloaders (such as Uboot, UEFI, etc) are capable of booting flat and compressed kernel images. In case of Uboot, booting Image or Image.gz is achieved using bootm command. The flat and uncompressed kernel image (i.e. Image) is very useful in pre-silicon developent and testing because we can create back-door HEX files for RAM on FPGAs from Image. Signed-off-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-11-12 11:25:15 +05:30
$(obj)/Image: vmlinux FORCE
riscv: Use --emit-relocs in order to move .rela.dyn in init 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>
2023-03-29 06:53:29 +02:00
endif
RISC-V: Build flat and compressed kernel images This patch extends Linux RISC-V build system to build and install: Image - Flat uncompressed kernel image Image.gz - Flat and GZip compressed kernel image Quiet a few bootloaders (such as Uboot, UEFI, etc) are capable of booting flat and compressed kernel images. In case of Uboot, booting Image or Image.gz is achieved using bootm command. The flat and uncompressed kernel image (i.e. Image) is very useful in pre-silicon developent and testing because we can create back-door HEX files for RAM on FPGAs from Image. Signed-off-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-11-12 11:25:15 +05:30
$(call if_changed,objcopy)
$(obj)/Image.gz: $(obj)/Image FORCE
$(call if_changed,gzip)
riscv: Fix build dependency for loader The Makefile addition for the flat image loader missed an obj prefix. For most parallel builds this worked out fine, but with -j1 the dependency wasn't fulfilled and thus fails: arch/riscv/boot/loader.S: Assembler messages: arch/riscv/boot/loader.S:7: Error: file not found: arch/riscv/boot/Image Fixes: 405fe7aa0dba ("riscv: provide a flat image loader") Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Olof Johansson <olof@lixom.net> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-12-07 13:29:16 -08:00
$(obj)/loader.o: $(src)/loader.S $(obj)/Image
riscv: provide a flat image loader This allows just loading the kernel at a pre-set address without qemu going bonkers trying to map the ELF file. Contains a contribution from Aurabindo Jayamohanan to reuse the PAGE_OFFSET definition. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Anup Patel <anup@brainfault.org> [paul.walmsley@sifive.com: fixed checkpatch issue; minor commit message fix] Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-10-28 13:10:42 +01:00
$(obj)/loader: $(obj)/loader.o $(obj)/Image $(obj)/loader.lds FORCE
$(Q)$(LD) -T $(obj)/loader.lds -o $@ $(obj)/loader.o
RISC-V: Add multiple compression image format. Currently, there is only support for .gz compression type for generating kernel Image. Add support for other compression methods(lzma, lz4, lzo, bzip2) that helps in generating a even smaller kernel image. Image.gz will still be the default compressed image. Signed-off-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-11-05 16:06:52 -08:00
$(obj)/Image.bz2: $(obj)/Image FORCE
$(call if_changed,bzip2)
$(obj)/Image.lz4: $(obj)/Image FORCE
$(call if_changed,lz4)
$(obj)/Image.lzma: $(obj)/Image FORCE
$(call if_changed,lzma)
$(obj)/Image.lzo: $(obj)/Image FORCE
$(call if_changed,lzo)
riscv: boot: add zstd support Support build the zstd compressed Image.zst. Similar as other compressed formats, the Image.zst is not self-decompressing and the bootloader still needs to handle decompression before launching the kernel image. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Link: https://lore.kernel.org/r/20221123150257.3108-1-jszhang@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-11-23 23:02:57 +08:00
$(obj)/Image.zst: $(obj)/Image FORCE
$(call if_changed,zstd)
riscv: create a loader.bin boot image for Kendryte SoC Create the loader.bin bootable image file that can be loaded into Kendryte K210 based boards using the kflash.py tool with the command: kflash.py/kflash.py -t arch/riscv/boot/loader.bin Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-16 09:47:43 +09:00
$(obj)/loader.bin: $(obj)/loader FORCE
$(call if_changed,objcopy)
riscv: efi: enable generic EFI compressed boot Wire up the generic EFI zboot support for RISC-V. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Tested-by: Conor Dooley <conor.dooley@microchip.com>
2022-05-02 17:40:34 +02:00
EFI_ZBOOT_PAYLOAD := Image
EFI_ZBOOT_BFD_TARGET := elf$(BITS)-littleriscv
EFI_ZBOOT_MACH_TYPE := RISCV$(BITS)
include $(srctree)/drivers/firmware/efi/libstub/Makefile.zboot
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