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Re: Stepping out of signal handler problem

From: Aleksandar Ristovski <aristovski at qnx dot com>
To: Mark Kettenis <mark dot kettenis at xs4all dot nl>
Cc: gdb at sources dot redhat dot com
Date: Fri, 16 May 2008 14:48:36 -0400
Subject: Re: Stepping out of signal handler problem
References: <g0kcje$md5$1@ger.gmane.org> <200805161732.m4GHWcjU013412@brahms.sibelius.xs4all.nl>

Mark Kettenis wrote:

From: Aleksandar Ristovski <aristovski@qnx.com>
Date:  Fri, 16 May 2008 12:26:43 -0400

This makes question 2: Is the only way to implement this similar to
linux-nat (scanning for sigreturn kernel call)? Is there anything
'cleaner'?


The clean way of doing this is provide proper unwind info for the
signal trampoline.  This shouldn't be too difficult if your signal
trampolines live in libc, and quite a bit harder if they are in the
kernel.

What is the preferred way: frame_unwind_append_sniffer or tramp_frame_prepend_unwinder?

Follow-Ups:
- Re: Stepping out of signal handler problem
  - From: Mark Kettenis

References:
- Stepping out of signal handler problem
  - From: Aleksandar Ristovski
- Re: Stepping out of signal handler problem
  - From: Mark Kettenis

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