c202be793f
There were some issues with the current Linuxboot Makefiles.
- multithreaded compilation didn't work, because some prerequisites
were missing
- initramfs wasn't added for x86 qemu boot.
- riscv support was incomplete
It began with separate patches, but resulted in a clean up patch, that
is hard to separate. The most important changes are the following:
- Instead of phony targets, actual files are now used as prerequisites
- riscv can now be used as target
- initramfs works now also for x86
- instead of querying the most recent version from the internet, I set a
known working version (because I tested it) that can be customized
and/or upgraded in the future. The reasons:
- querying the version from the internet requires a constant
connection to the internet even after linux kernel is already
build (aka subsequent builds).
- one usually wants to use a known working version, but optionally
still have the posibillity to choose a custom one. This patch
introduces this possibility in its most simple form.
- I removed as much ifeq statements as possible and moved that
responsibility to Kconfig, because they tend to make the
Makefile less readable.
Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: I25e757108e0dd473969fe5a192ad0733f1fe6286
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76150
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
329 lines
7.5 KiB
Plaintext
329 lines
7.5 KiB
Plaintext
## SPDX-License-Identifier: GPL-2.0-only
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if PAYLOAD_LINUXBOOT
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choice
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prompt "Architecture"
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depends on LINUXBOOT_COMPILE_KERNEL || LINUXBOOT_BUILD_INITRAMFS
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default LINUXBOOT_X86_64
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config LINUXBOOT_X86_64
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bool "x86_64"
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depends on ARCH_X86
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help
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AMD64 kernel and initramfs
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config LINUXBOOT_X86
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bool "x86"
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depends on ARCH_X86
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help
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X86 kernel and initramfs
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config LINUXBOOT_ARM
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bool "arm64"
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depends on ARCH_ARM
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select PAYLOAD_FIT_SUPPORT
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help
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arm kernel and initramfs
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config LINUXBOOT_ARM64
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bool "arm64"
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depends on ARCH_ARM64
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select PAYLOAD_FIT_SUPPORT
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help
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AARCH64 kernel and initramfs
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config LINUXBOOT_RISCV_RV32
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bool "RISC-V"
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depends on ARCH_RISCV_RV32
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select PAYLOAD_FIT_SUPPORT
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help
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RISC-V kernel and initramfs
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config LINUXBOOT_RISCV_RV64
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bool "RISC-V"
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depends on ARCH_RISCV_RV64
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select PAYLOAD_FIT_SUPPORT
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help
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RISC-V kernel and initramfs
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endchoice
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comment "Linux kernel"
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config LINUXBOOT_COMPILE_KERNEL
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bool "Compile kernel"
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default n
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config LINUXBOOT_KERNEL_PATH
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string "Path to kernel"
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default "build/uImage" if LINUXBOOT_KERNEL_UIMAGE
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default "build/bzImage" if LINUXBOOT_KERNEL_BZIMAGE
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help
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The kernel path is either and absolute path or relative to the
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LinuxBoot directory
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if LINUXBOOT_COMPILE_KERNEL
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config LINUXBOOT_CROSS_COMPILE
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string "cross compiler"
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default "" # e.g. "aarch64-linux-gnu-"
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help
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Choose a custom cross compiler toolchain to use.
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It can be useful if you don't want to use the coreboot toolchain
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or experience problems using it.
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config LINUXBOOT_KERNEL_VERSION
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string "kernel version"
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default "6.3"
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help
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Choose the Linux kernel version number. (x.x.x)
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Release candidate kernels (rc) are currently are not supported.
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config LINUXBOOT_KERNEL_CONFIGFILE
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string "Config file path"
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default "i386/defconfig" if LINUXBOOT_X86
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default "x86_64/defconfig" if LINUXBOOT_X86_64
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default "arm64/defconfig" if LINUXBOOT_ARM64
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default "riscv/defconfig-32" if LINUXBOOT_RISCV_RV32
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default "riscv/defconfig-64" if LINUXBOOT_RISCV_RV64
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help
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Path to the kernel configuration file.
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Note: this can be a defconfig file or a complete .config file.
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choice
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prompt "Kernel binary format"
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default LINUXBOOT_KERNEL_BZIMAGE if LINUXBOOT_X86 || LINUXBOOT_X86_64
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default LINUXBOOT_KERNEL_UIMAGE if LINUXBOOT_ARM64 || LINUXBOOT_RISCV_RV32 || LINUXBOOT_RISCV_RV64
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config LINUXBOOT_KERNEL_BZIMAGE
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bool "bzImage"
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depends on LINUXBOOT_X86 || LINUXBOOT_X86_64
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config LINUXBOOT_KERNEL_UIMAGE
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bool "uImage"
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depends on LINUXBOOT_ARM64 || LINUXBOOT_RISCV_RV32 || LINUXBOOT_RISCV_RV64
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endchoice
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config LINUXBOOT_DTS_FILE
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string "Compiled devicetree file"
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depends on LINUXBOOT_ARM64 || LINUXBOOT_RISCV_RV32 || LINUXBOOT_RISCV_RV64
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default "empty.dts"
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endif #LINUXBOOT_COMPILE_KERNEL
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config LINUX_COMMAND_LINE
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string "Kernel command-line"
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default ""
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help
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Add your own kernel command-line arguments.
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config PAYLOAD_FILE
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default "payloads/external/LinuxBoot/build/Image"
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comment "Linux initramfs"
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config LINUXBOOT_BUILD_INITRAMFS
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bool "Build initramfs"
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default n
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config LINUXBOOT_INITRAMFS_PATH
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string "Path to initramfs"
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default "build/initramfs_u-root.cpio" if LINUXBOOT_UROOT
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if LINUXBOOT_BUILD_INITRAMFS
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choice
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prompt "Initramfs"
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default LINUXBOOT_UROOT
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config LINUXBOOT_UROOT
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bool "u-root"
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depends on !LINUXBOOT_RISCV_RV32 # not supported by u-root
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help
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Enable u-root linuxboot mode.
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See http://u-root.tk/ for more information.
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endchoice
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if LINUXBOOT_UROOT
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choice
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prompt "U-root version"
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default LINUXBOOT_UROOT_MAIN
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config LINUXBOOT_UROOT_CUSTOM
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bool "custom"
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help
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choose a custom u-root branch
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config LINUXBOOT_UROOT_MAIN
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bool "main"
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help
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Latest u-root version
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config LINUXBOOT_UROOT_V7_0_0
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bool "v7.0.0"
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config LINUXBOOT_UROOT_V6_0_0
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bool "v6.0.0"
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config LINUXBOOT_UROOT_V5_0_0
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bool "v5.0.0"
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config LINUXBOOT_UROOT_V4_0_0
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bool "v4.0.0"
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config LINUXBOOT_UROOT_V3_0_0
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bool "v3.0.0"
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config LINUXBOOT_UROOT_V2_0_0
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bool "v2.0.0"
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config LINUXBOOT_UROOT_V1_0_0
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bool "v1.0.0"
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endchoice
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config LINUXBOOT_UROOT_CHECKOUT
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string "U-root custom branch"
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depends on LINUXBOOT_UROOT_CUSTOM
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config LINUXBOOT_UROOT_VERSION
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string
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default LINUXBOOT_UROOT_CHECKOUT if LINUXBOOT_UROOT_CUSTOM
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default "main" if LINUXBOOT_UROOT_MAIN
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default "v7.0.0" if LINUXBOOT_UROOT_V7_0_0
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default "v6.0.0" if LINUXBOOT_UROOT_V6_0_0
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default "v5.0.0" if LINUXBOOT_UROOT_V5_0_0
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default "v4.0.0" if LINUXBOOT_UROOT_V4_0_0
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default "v3.0.0" if LINUXBOOT_UROOT_V3_0_0
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default "v2.0.0" if LINUXBOOT_UROOT_V2_0_0
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default "v1.0.0" if LINUXBOOT_UROOT_V1_0_0
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choice
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prompt "Build format"
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default LINUXBOOT_UROOT_BB
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help
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u-root build format (e.g. bb or source). (default "bb")
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config LINUXBOOT_UROOT_BB
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bool "bb"
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config LINUXBOOT_UROOT_SOURCE
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bool "source (experimental)"
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endchoice
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config LINUXBOOT_UROOT_FORMAT
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string
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default "bb" if LINUXBOOT_UROOT_BB
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default "source" if LINUXBOOT_UROOT_SOURCE
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config LINUXBOOT_UROOT_FILES
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string "Add files to u-root base"
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help
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Additional files, directories, and binaries (with their ldd dependencies) to add to archive.
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Can be speficified multiple times.
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config LINUXBOOT_UROOT_INITCMD
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string "Init target"
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default "init"
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help
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Symlink target for /init.
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Can be an absolute path or a u-root command name. (default "init")
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config LINUXBOOT_UROOT_SHELL
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string "default shell"
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default "elvish"
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help
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Default shell.
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Can be an absolute path or a u-root command name. (default "elvish")
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config LINUXBOOT_UROOT_COMMANDS
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string "U-root commands"
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default "boot coreboot-app"
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help
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List of additional modules to include,
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separated by space. (default "boot coreboot-app")
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if LINUXBOOT_UROOT_MAIN
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choice
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prompt "Choose a specific bootloader"
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default SPECIFIC_BOOTLOADER_SYSTEMBOOT
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help
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Specify a bootloader which starts after u-root init. It will be a symlink
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to /bin/uinit. Default: systemboot
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config SPECIFIC_BOOTLOADER_NONE
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bool "none"
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help
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Leave u-root to decide which bootloaders to load first after init, if
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any at all. Most likely u-root will start into the defined u-root shell.
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config SPECIFIC_BOOTLOADER_SYSTEMBOOT
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bool "systemboot"
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help
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If systemboot has been used as a bootloader wrapper in the past,
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enable this option. It will invoke -uinitcmd=systemboot and result in
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a BIOS/UEFI BDS boot behavior.
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config SPECIFIC_BOOTLOADER_BOOT2
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bool "boot2"
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config SPECIFIC_BOOTLOADER_PXEBOOT
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bool "pxeboot"
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config SPECIFIC_BOOTLOADER_STBOOT
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bool "stboot"
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config SPECIFIC_BOOTLOADER_CUSTOM
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bool "custom"
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endchoice
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config SPECIFIC_BOOTLOADER_CUSTOM_CMD
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string "Specify a custom program to start"
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depends on SPECIFIC_BOOTLOADER_CUSTOM
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help
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This option will symlink the input to /bin/unit which will set it as the
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first boot program after the u-root init. Program flags are not
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symlinkable.
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config LINUXBOOT_UROOT_UINITCMD
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string
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default "" if SPECIFIC_BOOTLOADER_NONE
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default "systemboot" if SPECIFIC_BOOTLOADER_SYSTEMBOOT
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default "boot2" if SPECIFIC_BOOTLOADER_BOOT2
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default "pxeboot" if SPECIFIC_BOOTLOADER_PXEBOOT
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default "stboot" if SPECIFIC_BOOTLOADER_STBOOT
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default SPECIFIC_BOOTLOADER_CUSTOM_CMD if SPECIFIC_BOOTLOADER_CUSTOM
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endif #LINUXBOOT_UROOT_MAIN
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endif #LINUXBOOT_UROOT
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endif #LINUXBOOT_BUILD_INITRAMFS
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choice
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prompt "Initramfs compression format"
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default LINUXBOOT_INITRAMFS_COMPRESSION_XZ
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config LINUXBOOT_INITRAMFS_COMPRESSION_NONE
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bool "none"
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config LINUXBOOT_INITRAMFS_COMPRESSION_XZ
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bool "xz compression"
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endchoice
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config LINUXBOOT_INITRAMFS_SUFFIX
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string
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default "" if LINUXBOOT_INITRAMFS_COMPRESSION_NONE
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default ".xz" if LINUXBOOT_INITRAMFS_COMPRESSION_XZ
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endif #PAYLOAD_LINUXBOOT
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