Changes in Makefile

ac4f0678 - kbuild: Create intermediate vmlinux build with relocations preserved

Tue, 11 Mar 2025 11:06:20 +0000

kbuild: Create intermediate vmlinux build with relocations preservedThe imperative paradigm used to build vmlinux, extract some info from itor perform some checks on it, and subsequently modify it again goesagainst the declarative paradigm that is usually employed for definingmake rules.In particular, the Makefile.postlink files that consume their input viaan output rule result in some dodgy logic in the decompressor makefilesfor RISC-V and x86, given that the vmlinux.relocs input file needed togenerate the arch-specific relocation tables may not exist or be out ofdate, but cannot be constructed using the ordinary Make dependency basedrules, because the info needs to be extracted while vmlinux is in itsephemeral, non-stripped form.So instead, for architectures that require the static relocations thatare emitted into vmlinux when passing --emit-relocs to the linker, andare subsequently stripped out again, introduce an intermediate vmlinuxtarget called vmlinux.unstripped, and organize the reset of the buildlogic accordingly:- vmlinux.unstripped is created only once, and not updated again- build rules under arch/*/boot can depend on vmlinux.unstripped without running the risk of the data disappearing or being out of date- the final vmlinux generated by the build is not bloated with static relocations that are never needed again after the build completes.Signed-off-by: Ard Biesheuvel Signed-off-by: Masahiro Yamada List of files: /linux-6.15/arch/riscv/boot/Makefile

ab4ce983 - riscv: boot: add Image.xz support

Sun, 21 Jul 2024 13:36:31 +0000

riscv: boot: add Image.xz supportThe Image.* targets existed for other compressors already. Bootloadersupport is needed for decompression.This is for CONFIG_EFI_ZBOOT=n. With CONFIG_EFI_ZBOOT=y, XZ was alreadyavailable.Comparision with Linux 6.10 RV64GC tinyconfig (in KiB): 1027 Image 594 Image.gz 541 Image.zst 510 Image.lzma 474 Image.xzLink: https://lkml.kernel.org/r/20240721133633.47721-17-lasse.collin@tukaani.orgSigned-off-by: Lasse Collin Reviewed-by: Emil Renner Berthing Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Albert Ou Cc: Jules Maselbas Cc: Catalin Marinas Cc: Greg Kroah-Hartman Cc: Herbert Xu Cc: Joel Stanley Cc: Jonathan Corbet Cc: Jubin Zhong Cc: Krzysztof Kozlowski Cc: Michael Ellerman Cc: Randy Dunlap Cc: Rui Li Cc: Sam James Cc: Simon Glass Cc: Thomas Gleixner Cc: Will Deacon Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/riscv/boot/Makefile

8d22d0db - riscv: boot: remove duplicated targets line

Thu, 13 Jun 2024 15:30:53 +0000

riscv: boot: remove duplicated targets lineThe "targets:" is duplicated in another line, remove the one with lesstargets.Signed-off-by: Jisheng Zhang Reviewed-by: Emil Renner Berthing Link: https://lore.kernel.org/r/20240613153053.3835-1-jszhang@kernel.orgSigned-off-by: Palmer Dabbelt List of files: /linux-6.15/arch/riscv/boot/Makefile

7f7f6f7a - Makefile: remove redundant tool coverage variables

Mon, 06 May 2024 13:35:43 +0000

Makefile: remove redundant tool coverage variablesNow Kbuild provides reasonable defaults for objtool, sanitizers, andprofilers.Remove redundant variables.Note:This commit changes the coverage for some objects: - include arch/mips/vdso/vdso-image.o into UBSAN, GCOV, KCOV - include arch/sparc/vdso/vdso-image-*.o into UBSAN - include arch/sparc/vdso/vma.o into UBSAN - include arch/x86/entry/vdso/extable.o into KASAN, KCSAN, UBSAN, GCOV, KCOV - include arch/x86/entry/vdso/vdso-image-*.o into KASAN, KCSAN, UBSAN, GCOV, KCOV - include arch/x86/entry/vdso/vdso32-setup.o into KASAN, KCSAN, UBSAN, GCOV, KCOV - include arch/x86/entry/vdso/vma.o into GCOV, KCOV - include arch/x86/um/vdso/vma.o into KASAN, GCOV, KCOVI believe these are positive effects because all of them are kernelspace objects.Signed-off-by: Masahiro Yamada Reviewed-by: Kees Cook Tested-by: Roberto Sassu List of files: /linux-6.15/arch/riscv/boot/Makefile

57a4542c - riscv: boot: Fix creation of loader.bin

Tue, 24 Oct 2023 14:53:18 +0000

riscv: boot: Fix creation of loader.binWhen flashing loader.bin for K210 using kflash: [ERROR] This is an ELF file and cannot be programmed to flash directly: arch/riscv/boot/loader.binBefore, loader.bin relied on "OBJCOPYFLAGS := -O binary" in the mainRISC-V Makefile to create a boot image with the right format. With thisremoved, 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 Reviewed-by: Damien Le Moal Link: https://lore.kernel.org/r/1086025809583809538dfecaa899892218f44e7e.1698159066.git.geert+renesas@glider.beSigned-off-by: Palmer Dabbelt List of files: /linux-6.15/arch/riscv/boot/Makefile

559d1e45 - riscv: Use --emit-relocs in order to move .rela.dyn in init

Wed, 29 Mar 2023 04:53:29 +0000

riscv: Use --emit-relocs in order to move .rela.dyn in initTo circumvent an issue where placing the relocations inside the initsections produces empty relocations, use --emit-relocs. But to avoidcarrying those relocations in vmlinux, use an intermediatevmlinux.relocs file which is a copy of vmlinux *before* stripping itsrelocations.Suggested-by: Björn Töpel Suggested-by: Nick Desaulniers Signed-off-by: Alexandre Ghiti Link: https://lore.kernel.org/r/20230329045329.64565-7-alexghiti@rivosinc.comSigned-off-by: Palmer Dabbelt List of files: /linux-6.15/arch/riscv/boot/Makefile

de59b6ed - riscv: boot: add zstd support

Wed, 23 Nov 2022 15:02:57 +0000

riscv: boot: add zstd supportSupport build the zstd compressed Image.zst. Similar as othercompressed formats, the Image.zst is not self-decompressing andthe bootloader still needs to handle decompression beforelaunching the kernel image.Signed-off-by: Jisheng Zhang Link: https://lore.kernel.org/r/20221123150257.3108-1-jszhang@kernel.orgSigned-off-by: Palmer Dabbelt List of files: /linux-6.15/arch/riscv/boot/Makefile

f5579340 - riscv: efi: enable generic EFI compressed boot

Mon, 02 May 2022 15:40:34 +0000

riscv: efi: enable generic EFI compressed bootWire up the generic EFI zboot support for RISC-V.Signed-off-by: Ard Biesheuvel Acked-by: Palmer Dabbelt Tested-by: Conor Dooley List of files: /linux-6.15/arch/riscv/boot/Makefile

399c1ec8 - riscv: move the (z)install rules to arch/riscv/Makefile

Thu, 29 Jul 2021 14:21:47 +0000

riscv: move the (z)install rules to arch/riscv/MakefileCurrently, the (z)install targets in arch/riscv/Makefile descend intoarch/riscv/boot/Makefile to invoke the shell script, but there is nogood reason to do so.arch/riscv/Makefile can run the shell script directly.Signed-off-by: Masahiro Yamada Signed-off-by: Palmer Dabbelt List of files: /linux-6.15/arch/riscv/boot/Makefile

44c92257 - RISC-V: enable XIP

Tue, 13 Apr 2021 06:35:14 +0000

RISC-V: enable XIPIntroduce XIP (eXecute In Place) support for RISC-V platforms.It allows code to be executed directly from non-volatile storagedirectly addressable by the CPU, such as QSPI NOR flash which canbe found on many RISC-V platforms. This makes way for significantoptimization of RAM footprint. The XIP kernel is not compressedsince it has to run directly from flash, so it will occupy morespace on the non-volatile storage. The physical flash address usedto link the kernel object files and for storing it has to be knownat compile time and is represented by a Kconfig option.XIP on RISC-V will for the time being only work on MMU-enabledkernels.Signed-off-by: Vitaly Wool [Alex: Rebase on top of "Move kernel mapping outside the linear mapping" ]Signed-off-by: Alexandre Ghiti [Palmer: disable XIP for allyesconfig]Signed-off-by: Palmer Dabbelt List of files: /linux-6.15/arch/riscv/boot/Makefile

2c42bcbb - riscv: Clean up boot dir

Wed, 04 Nov 2020 06:15:00 +0000

riscv: Clean up boot dirLet's remove all files under riscv boot dir by using archclean rule.Signed-off-by: Kefeng Wang Reviewed-by: Atish Patra Signed-off-by: Palmer Dabbelt List of files: /linux-6.15/arch/riscv/boot/Makefile

20d38f7c - riscv: Allow building with kcov coverage

Fri, 26 Jun 2020 12:40:56 +0000

riscv: Allow building with kcov coverageAdd 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 Acked-by: Dmitry Vyukov Signed-off-by: Palmer Dabbelt List of files: /linux-6.15/arch/riscv/boot/Makefile

37809df4 - riscv: create a loader.bin boot image for Kendryte SoC

Mon, 16 Mar 2020 00:47:43 +0000

riscv: create a loader.bin boot image for Kendryte SoCCreate the loader.bin bootable image file that can be loaded intoKendryte K210 based boards using the kflash.py tool with the command:kflash.py/kflash.py -t arch/riscv/boot/loader.binSigned-off-by: Christoph Hellwig Signed-off-by: Damien Le Moal Reviewed-by: Anup Patel Reviewed-by: Palmer Dabbelt Signed-off-by: Palmer Dabbelt List of files: /linux-6.15/arch/riscv/boot/Makefile

0e72a2f9 - riscv: Fix build dependency for loader

Sat, 07 Dec 2019 21:29:16 +0000

riscv: Fix build dependency for loaderThe Makefile addition for the flat image loader missed an obj prefix.For most parallel builds this worked out fine, but with -j1 the dependencywasn'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/ImageFixes: 405fe7aa0dba ("riscv: provide a flat image loader")Cc: Christoph Hellwig Signed-off-by: Olof Johansson Reviewed-by: Anup Patel Signed-off-by: Paul Walmsley List of files: /linux-6.15/arch/riscv/boot/Makefile

405fe7aa - riscv: provide a flat image loader

Mon, 28 Oct 2019 12:10:42 +0000

riscv: provide a flat image loaderThis allows just loading the kernel at a pre-set address withoutqemu going bonkers trying to map the ELF file.Contains a contribution from Aurabindo Jayamohanan to reuse thePAGE_OFFSET definition.Signed-off-by: Christoph Hellwig Reviewed-by: Anup Patel [paul.walmsley@sifive.com: fixed checkpatch issue; minor commit message fix]Signed-off-by: Paul Walmsley List of files: /linux-6.15/arch/riscv/boot/Makefile

8083c629 - RISC-V: Add multiple compression image format.

Wed, 06 Nov 2019 00:06:52 +0000

RISC-V: Add multiple compression image format.Currently, there is only support for .gz compression typefor generating kernel Image.Add support for other compression methods(lzma, lz4, lzo, bzip2)that helps in generating a even smaller kernel image. Image.gzwill still be the default compressed image.Signed-off-by: Atish Patra Signed-off-by: Paul Walmsley List of files: /linux-6.15/arch/riscv/boot/Makefile

c0fbcd99 - RISC-V: Build flat and compressed kernel images

Mon, 12 Nov 2018 05:55:15 +0000

RISC-V: Build flat and compressed kernel imagesThis patch extends Linux RISC-V build system to build and install:Image - Flat uncompressed kernel imageImage.gz - Flat and GZip compressed kernel imageQuiet a few bootloaders (such as Uboot, UEFI, etc) are capable ofbooting flat and compressed kernel images. In case of Uboot, bootingImage or Image.gz is achieved using bootm command.The flat and uncompressed kernel image (i.e. Image) is very usefulin pre-silicon developent and testing because we can create back-doorHEX files for RAM on FPGAs from Image.Signed-off-by: Anup Patel Signed-off-by: Palmer Dabbelt List of files: /linux-6.15/arch/riscv/boot/Makefile