From: Andrew Cagney <cagney@gnu.org>
To: Mark Kettenis <kettenis@chello.nl>
Cc: gdb@sources.redhat.com
Subject: Re: Stepping through signal trampolines
Date: Thu, 25 Mar 2004 19:59:00 -0000 [thread overview]
Message-ID: <40630083.7020500@gnu.org> (raw)
In-Reply-To: <200403251333.i2PDXSq7006981@elgar.kettenis.dyndns.org>
> So there still seem to be some quirks with stepping through signal
> trampolines. But before we decide what's the bug, I think we should
> ask ourselves what the desired behaviour is. In my view:
>
> * "finish" from within a signal handler should make us return to the
> signal trampoline.
>
> * "finish" from within a signal trampoline should make us return to
> the point where the signal interruption occured.
>
> * "stepi" from within a signal handler should step through the signal
> handler and back into the signal trampoline.
>
> * "stepi" from within a signal trampoline should step through the
> signal trampoline until the sigreturn system call.
* nexti in a sigtramp is like stepi
What about disassemble? Disassemble the entire signal trampoline or the
current instruction?
(you now know where my testcases are going :-)
Andrew
next prev parent reply other threads:[~2004-03-25 15:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-25 14:47 Mark Kettenis
2004-03-25 19:59 ` Andrew Cagney [this message]
2004-04-05 22:48 ` Andrew Cagney
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