On Thu, 22 Dec 2011 08:01:28 -0600
Jeff Epler <jep...@unpythonic.net> wrote:

> Does running 'siggen' lead to the same problem?  It also has calls to
> trig functions like sin and cos that seem likely to be the functions
> implicated in this crash.  You could run siggen according to the
> instructions here:
>     
> http://linuxcnc.org/docs/2.5/html/hal/tutorial.html#_a_simple_example_a_id_sec_tutorial_simple_example_a

Is "loadrt siggen" enough to make it execute trig functions? Probably not.
I guess I also have to add some function to a thread.

> I think the ABI question is a red herring unless it's changing structure
> layout.  We don't care about calling convention matching because
> function calls from userspace to kernel space or vice versa just aren't
> done.

I'm not talking about user/kernel calls.
I'm talking about calls from emc kernel code (no-fast-math) into rtai 
(fast-math)
kernel code.

-- 
Greetings, Michael.

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