linux-kernel - Re: [PATCH 1/2] x86/kprobes: Fix kprobes instruction boudary check with CONFIG

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Message-Id: <20220907185312.3cc1c2c063912f1ca6f8ea2f@kernel.org>
Date:   Wed, 7 Sep 2022 18:53:12 +0900
From:   Masami Hiramatsu (Google) <mhiramat@...nel.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...nel.org>,
        Suleiman Souhlal <suleiman@...gle.com>,
        bpf <bpf@...r.kernel.org>, linux-kernel@...r.kernel.org,
        Borislav Petkov <bp@...e.de>,
        Josh Poimboeuf <jpoimboe@...nel.org>, x86@...nel.org
Subject: Re: [PATCH 1/2] x86/kprobes: Fix kprobes instruction boudary check
 with CONFIG_RETHUNK

On Wed, 7 Sep 2022 11:38:36 +0200
Peter Zijlstra <peterz@...radead.org> wrote:

> On Wed, Sep 07, 2022 at 06:12:18PM +0900, Masami Hiramatsu wrote:
> > OK, it should be updated. Where can I refer the names (especially '.dX' suffixes)?
> 
> https://sourceware.org/binutils/docs-2.23.1/as/i386_002dMnemonics.html
> 
>   `.d8' or `.d32' suffix prefers 8bit or 32bit displacement in encoding.

This is good to know. OK, I'll use this.

Thanks!


-- 
Masami Hiramatsu (Google) <mhiramat@...nel.org>