From: Gabriele Moabiti <gabmoa@domain.hid>
To: xenomai@xenomai.org
Subject: [Xenomai-help] floating point (int 16) exception
Date: Fri, 31 Oct 2008 16:26:10 +0000 (GMT) [thread overview]
Message-ID: <857546.30206.qm@domain.hid> (raw)
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Scenario:
Xenomai 2.4.5, kernel 2.6.24-7 (x86)
I have successfully trapped and restored int #0 (it is not reported in the example).
Now I want to trap fpu exceptions (#16) of a Xenomai user task (ring 3).
xfpu_xcpt.c -> kernel module used to intercept and manage fpu (#16) exceptions.
xfpu_user.c -> xenomai user task
The easiest way (it will not be so easy the final fpu exception manager of course!) to do this I knows was to do an fnclex but the example doesn't work (it hangs shortly).
I have tried *many* solutions but nothing works. I think the problem is I can't do a simple fnclex but I can't figure how to solve the problem.
Thank you
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next reply other threads:[~2008-10-31 16:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-31 16:26 Gabriele Moabiti [this message]
2008-10-31 16:31 ` [Xenomai-help] floating point (int 16) exception Gilles Chanteperdrix
2008-10-31 16:47 ` Gabriele Moabiti
2008-10-31 16:52 ` Gilles Chanteperdrix
2008-10-31 17:15 ` Gabriele Moabiti
2008-10-31 17:20 ` Gilles Chanteperdrix
2008-10-31 18:41 ` Gabriele Moabiti
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