Re: NetBSD-6.0.1 arm1136jf-s Warning: swp{b} use is deprecated for this architecture

To: Frank Zerangue <frank.zerangue%gmail.com@localhost>
Subject: Re: NetBSD-6.0.1 arm1136jf-s Warning: swp{b} use is deprecated for this architecture
From: Matt Thomas <matt%3am-software.com@localhost>
Date: Sat, 26 Jan 2013 13:46:38 -0800

On Jan 26, 2013, at 12:36 PM, Frank Zerangue wrote:

> Has anyone seen this warning on a NetBSD-6.0.1 build using an arm core 
> arm1136jf-s?
> 
> This is an armv6 architecture which deprecates the swp{b} instruction. It 
> looks like gcc version 4.5.3 (NetBSD nb2 20111202) is incorrectly producing 
> swp instructions for this cpu type, -mcpu=arm1136jf-s.

It's deprecated but still works.  There are changes in current which moves
it to ldrexb/strexb.

You can ignore it for now.

Follow-Ups:
- Re: NetBSD-6.0.1 arm1136jf-s Warning: swp{b} use is deprecated for this architecture
  - From: hashimoto kenichi
- Re: NetBSD-6.0.1 arm1136jf-s Warning: swp{b} use is deprecated for this architecture
  - From: Frank Zerangue

References:
- NetBSD-6.0.1 arm1136jf-s Warning: swp{b} use is deprecated for this architecture
  - From: Frank Zerangue

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