Alan Cox wrote:
> > why not always -fno-builtin,
> > and then call __builtin_foo when we really want the compiler's version..
> That may well be the right thing to do. Of course we rely on the compiler
> providing some of them too
true, it wouldn't be a completely transparent switchover, but it seems
like the best way to produce expected results across a bunch of
different compilers.
> but -fno-builtin will still
> give a kernel that dosnt link due to abs() and other problems.. 8)
Any others come to mind? abs is definitely special in that the compiler
[potentially] can do additional magic with the type information it has.
Maybe -fno-builtin plus
#undef abs
#define abs __builtin_abs
Thanks,
Jeff
--
Jeff Garzik | Andre the Giant has a posse.
Building 1024 |
MandrakeSoft |
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