Messages in this thread | | | Date | Sat, 26 Mar 2022 09:54:20 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH v2 2/3] bootconfig: Support embedding a bootconfig file in kernel |
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On Sat, 26 Mar 2022 21:40:40 +0900 Masami Hiramatsu <mhiramat@kernel.org> wrote:
> > BTW, it is already possible to embed kernel parameters > > into the kernel. > > Is this another implementation of CONFIG_CMDLINE?
If one changes CONFIG_CMDLINE, does it require a rebuild of vmlinux?
> > Yes, it is the bootconfig version of the CONFIG_CMDLINE. > Since some boot-time tracing feature depends on the bootconfig (those can > not be set via kernel cmdline), we need this feature for those features > on non-initrd boot system.
Yes, the kernel command line has a fixed size, and with tracing options, we can easily go over it.
bootconfig is a way to have an unlimited size and also be able to have a better and more reasonable formatting to express options for things like tracing.
-- Steve
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