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Re: Call for compiler help/advice: atomic builtins for v3

From: Paolo Carlini <pcarlini at suse dot de>
To: Ian Lance Taylor <ian at airs dot com>
Cc: Richard Henderson <rth at redhat dot com>, gcc at gcc dot gnu dot org,libstdc++ at gcc dot gnu dot org
Date: Sun, 06 Nov 2005 21:14:18 +0100
Subject: Re: Call for compiler help/advice: atomic builtins for v3
References: <436DDC36.8070308@suse.de> <20051106185151.GA31605@redhat.com> <m3y8415yhw.fsf@gossamer.airs.com>

Hi Ian,

>I can see that there is a troubling case that code may be compiled for
>i386 and then run on a multi-processing system using newer processors.
>That is something which we would have to detect at run time, in start
>up code or the first time the builtins are invoked.
>  
>
Earlier in this thread, Mark figured out a very nice solution for this
problem: a target-aware libgcc. Apparently glibc is already using a
similar approach.

Paolo.

References:
- Call for compiler help/advice: atomic builtins for v3
  - From: Paolo Carlini
- Re: Call for compiler help/advice: atomic builtins for v3
  - From: Richard Henderson
- Re: Call for compiler help/advice: atomic builtins for v3
  - From: Ian Lance Taylor

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