Re: i486 emu in mainline?

[Willy Tarreau]

On Sun, May 23, 2004 at 06:51:30AM -0400, Joseph Fannin wrote:
> On Sun, May 23, 2004 at 10:29:12AM +0200, Willy Tarreau wrote:
> 
> > On Sun, May 23, 2004 at 01:40:59AM +0200, Christoph Hellwig wrote:
> >> These days gcc uses i486+ only instruction by default in libstdc++ so
> >> most modern distros wouldn't work on i386 cpus anymore.  To make it work
> >> again Debian merged Willy Tarreau's patch to trap those and emulate them
> >> on real i386 cpus.  The patch is extremely non-invasive and would
> >> certainly be usefull for mainline.  Any reason not to include it?
> 
> 
> >   - I couldn't emulate locks, so this will break on SMP systems, and so
> >     will it if you need to access some memory share with an external
> >     microcontroller or something like that.
> 
>     Does this mean that programs that use the NPTL will work on
> non-SMP 386s?

I have no idea. Why would NPTL not work on i386 ?

Willy

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