Subject: Re: port-mips/29698: floating point context not saved in pthread/mips
To: None <port-mips-maintainer@netbsd.org, gnats-admin@netbsd.org,>
From: Jason Thorpe <thorpej@shagadelic.org>
List: netbsd-bugs
Date: 03/15/2005 16:39:01
The following reply was made to PR port-mips/29698; it has been noted by GNATS.

From: Jason Thorpe <thorpej@shagadelic.org>
To: gnats-bugs@netbsd.org
Cc: port-mips-maintainer@netbsd.org, gnats-admin@netbsd.org,
	netbsd-bugs@netbsd.org
Subject: Re: port-mips/29698: floating point context not saved in pthread/mips
Date: Tue, 15 Mar 2005 08:38:12 -0800

 On Mar 15, 2005, at 6:35 AM, Ignatios Souvatzis wrote:
 
 > Idea: save/restore fp regs in lib/libpthread/arch/mips/
 
 Unconditional save/restore of FP context on every thread switch is 
 potentially quite expensive.  We really need some way to tell userspace 
 that a particular LWP has used the FPU.
 
 -- thorpej