On 17 Aug 2009, at 08:31, Richard Frith-Macdonald wrote:
On 15 Aug 2009, at 18:10, David Chisnall wrote:
GNUstep currently does some asm magic to disable floating point
exceptions on FreeBSD. This sometimes, coincidentally, works, but
often the flag is reset by various things. This patch sets it via
the standard libm interface, which ensures that it remains cleared.
Thanks ... I didn't realise that the old fix was unreliable (don't
recall seeing bug reports about it ... probably not too many people
using FreeBSD).
It seems mostly reliable, but very occasionally you get a combination
of settings that break it.
It's good to have a better version.
Less assembly is always good. :-)
Do you know if the issue applies to any other BSD variants? If it
does, perhaps we should use autoconf to test for the header and
include/use the new fix on all BSDs rather than just on FreeBSD?
I had a look at the Mozilla codebase and they seem to only need this
on FreeBSD (they don't do it with inline asm either, but they use the
old-and-deprecated way of setting the flag).
David
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