svn commit: r227538 - head/tools/build

David Schultz das at
Wed Nov 16 06:02:55 UTC 2011

On Tue, Nov 15, 2011, Marcel Moolenaar wrote:
> On Nov 15, 2011, at 1:14 PM, David Schultz wrote:
> > On Tue, Nov 15, 2011, Dimitry Andric wrote:
> >> Note all the final executables will use 'real' atomic operations.  That
> >> is, unless you compile with CPUTYPE?=i386, and I wish you the best of
> >> luck in that case, you'll need it. :)
> > 
> > I thought we dropped support for anything less than a 486DX years ago.
> That's besides the point. GCC by default targets i386 on older
> FreeBSD versions, which means that GCC does not expand atomic
> operations inline and simple emits calls for them. It's all
> about how GCC behaves and it has nothing to do with whether we
> support 80386 CPUs or not.

Understood.  I didn't realize that nobody dragged the default gcc
target into the 1990's until 2009.

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