linux-kernel - Re: [POC][RFC][PATCH 1/2] jump_function: Addition of new feature "jump

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Message-ID: <20181008235750.59da83ae@gandalf.local.home>
Date:   Mon, 8 Oct 2018 23:57:50 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Andy Lutomirski <luto@...capital.net>,
        Peter Zijlstra <peterz@...radead.org>,
        linux-kernel@...r.kernel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Matthew Helsley <mhelsley@...are.com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Jason Baron <jbaron@...mai.com>, Jiri Kosina <jkosina@...e.cz>,
        ard.biesheuvel@...aro.org, Andy Lutomirski <luto@...nel.org>
Subject: Re: [POC][RFC][PATCH 1/2] jump_function: Addition of new feature
 "jump_function"

On Mon, 8 Oct 2018 21:17:10 -0500
Josh Poimboeuf <jpoimboe@...hat.com> wrote:

> I'm not really convinced we need objtool for this, maybe I'll try
> whipping up a POC.

Awesome!

I wasn't thinking of actually having objtool itself perform this task,
but instead breaking the internals of objtool up into more of a generic
infrastructure, that recordmcount.c, objtool, and whatever this does
can use.

-- Steve