linux-kernel - Re: [PATCH v8 0/5] arm64: ftrace with regs

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Message-ID: <20191021132044.zkzclqtrexryyybl@treble>
Date:   Mon, 21 Oct 2019 08:20:44 -0500
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Torsten Duwe <duwe@....de>
Cc:     Mark Rutland <mark.rutland@....com>,
        Jiri Kosina <jikos@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Julien Thierry <julien.thierry@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Will Deacon <will.deacon@....com>,
        linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
        AKASHI Takahiro <takahiro.akashi@...aro.org>,
        Ingo Molnar <mingo@...hat.com>,
        Ruslan Bilovol <ruslan.bilovol@...il.com>,
        Amit Daniel Kachhap <amit.kachhap@....com>,
        live-patching@...r.kernel.org,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v8 0/5] arm64: ftrace with regs

On Sat, Oct 19, 2019 at 01:01:35PM +0200, Torsten Duwe wrote:
> All calls going _out_ from the KLP module are newly generated, as part
> of the KLP module building process, and are thus aware of them being
> "extern" -- a PLT entry should be generated and accounted for in the
> KLP module.

Hm... for kpatch-build I assume we may need a GCC plugin to convert
local calls to global somehow?

-- 
Josh