WSL2-Linux-Kernel/lib/bootconfig-data.S

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Embed default bootconfig in the kernel.
 */
	.section .init.rodata, "aw"
	.global embedded_bootconfig_data
embedded_bootconfig_data:
	.incbin "lib/default.bconf"
	.global embedded_bootconfig_data_end
embedded_bootconfig_data_end:
bootconfig: Support embedding a bootconfig file in kernel This allows kernel developer to embed a default bootconfig file in the kernel instead of embedding it in the initrd. This will be good for who are using the kernel without initrd, or who needs a default bootconfigs. This needs to set two kconfigs: CONFIG_BOOT_CONFIG_EMBED=y and set the file path to CONFIG_BOOT_CONFIG_EMBED_FILE. Note that you still need 'bootconfig' command line option to load the embedded bootconfig. Also if you boot using an initrd with a different bootconfig, the kernel will use the bootconfig in the initrd, instead of the default bootconfig. Link: https://lkml.kernel.org/r/164921227943.1090670.14035119557571329218.stgit@devnote2 Cc: Padmanabha Srinivasaiah <treasure4paddy@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Sami Tolvanen <samitolvanen@google.com> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Linux Kbuild mailing list <linux-kbuild@vger.kernel.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> 2022-04-06 05:31:19 +03:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`/*`
			`* Embed default bootconfig in the kernel.`
			`*/`
			`.section .init.rodata, "aw"`
			`.global embedded_bootconfig_data`
			`embedded_bootconfig_data:`
			`.incbin "lib/default.bconf"`
			`.global embedded_bootconfig_data_end`
			`embedded_bootconfig_data_end:`