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Re: New .nops directive, to aid Linux alternatives patching?
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Andrew Cooper <andrew dot cooper3 at citrix dot com>
- Cc: Binutils <binutils at sourceware dot org>
- Date: Thu, 8 Feb 2018 12:10:02 -0800
- Subject: Re: New .nops directive, to aid Linux alternatives patching?
- Authentication-results: sourceware.org; auth=none
- References: <9aef8e7e-bb7c-3e8e-ddb6-4501801d4bca@citrix.com>
On Thu, Feb 8, 2018 at 11:26 AM, Andrew Cooper
<andrew.cooper3@citrix.com> wrote:
> Hello,
>
> I realise this is a little bit niche, but how feasible would it be to
> introduce a new .nops directive which takes a size parameter, and
> outputs long nops covering the number of specified bytes?
>
Sounds to me you want a pseudo NOP instruction:
pseudo-NOP N
which generates a long NOP with N byte. Is that correct. If yes,
what is the range of N?
--
H.J.