On Tue, Apr 10, 2001 at 11:33:52AM +0200, Ronald Bultje wrote:
> Hi,
>
> is it possible to conect a signal handler to a segmentation fault? I would
> like to stop child processes (the pipe-processes, to prevent "ghost
> processes") and release the hardware devices I use before quitting and
> dumping core, since otherwise, the device will report as being busy and you
> need a full restart to correct that (and a message that you need to send
> bug report could come in handy as well here :-) )...
>
> Ronald
Wow, three replies so far and noone says how to do it :)
The answer is you can connect a callback to a signal with either the signal()
(simplistic) or the sigaction() (sophisticated) system calls. Once you've finished
doing everything in your handler, change the signal to call the SIG_DFL dummy function
and raise() it again, and the program will dump core.
>
> --
> ---------------------------------------------------.
> -- .-. | Ronald Bultje |
> -- /V\ | Running: Linux 2.4.2 and OpenBSD 2.8 |
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