Re: [PATCH 0/7] add function arguments to ftrace

[Steven Rostedt]

On Fri, 06 Sep 2024 08:18:02 +0200
Sven Schnelle <svens@xxxxxxxxxxxxx> wrote:


> One thing i learned after submitting the series is that struct
> ftrace_regs depends on CONFIG_FUNCTION_TRACER, so it cannot be used
> with the graph tracer. So either we make it available unconditionally,
> or use some other data structure. Would like to hear your opinion on
> that, but i'll wait for the review after your travel because there
> are likely other issues that needs to be fixed as well.

Hmm, I thought the graph tracer depends on function tracer? Anyway, the
configs should be cleaned up. I would like to make CONFIG_FTRACE just mean
the function hook mechanism (mcount,fentry,etc) and not be used for the
tracing system.

Anyway, we can just make ftrace_regs defined outside any config for now.

-- Steve