From: Daniel Jacobowitz <drow@false.org>
To: Mark Kettenis <kettenis@gnu.org>
Cc: gdb-patches@sources.redhat.com, ezannoni@redhat.com,
cagney@gnu.org, roland@redhat.com
Subject: Re: [rfa] Attach vsyscall support for GNU/Linux
Date: Mon, 01 Nov 2004 16:15:00 -0000 [thread overview]
Message-ID: <20041101161552.GA26993@nevyn.them.org> (raw)
In-Reply-To: <200410252212.i9PMCQhJ031724@elgar.sibelius.xs4all.nl>
On Tue, Oct 26, 2004 at 12:12:26AM +0200, Mark Kettenis wrote:
> Date: Sun, 24 Oct 2004 19:16:36 -0400
> From: Daniel Jacobowitz <drow@false.org>
>
> Thanks for the explanation Daniel!
>
> Unwinding bugs aside, I think it's valuable for GDB to know that it is
> at a signal trampoline. I think the custom display in backtrace is
> valuable. That means we should look for signal handlers before looking
> for CFI. For NPTL that value judgement would fall the other way - not
> having to special-case signal handlers is a clear win.
>
> Given the fact that it is desirable for GDB to know that it's dealing
> with a signal handler, I think the correct approach is to extend the
> DWARF2 unwinder with a method to get the frame type, similar to what
> we already do for pre-initializing the register state.
>
> I'll see if I can come up with a patch for you to test.
Had any time for this, Mark? If not, I can try it.
I think this patch is very important for 6.3.
--
Daniel Jacobowitz
next prev parent reply other threads:[~2004-11-01 16:15 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-24 18:53 Daniel Jacobowitz
2004-10-24 20:55 ` Mark Kettenis
2004-10-24 23:16 ` Daniel Jacobowitz
2004-10-25 22:12 ` Mark Kettenis
2004-10-25 22:46 ` Andrew Cagney
2004-11-01 22:13 ` Mark Kettenis
2004-11-02 14:28 ` Andrew Cagney
2004-11-01 16:15 ` Daniel Jacobowitz [this message]
2004-11-01 20:45 ` Mark Kettenis
2004-11-01 22:32 ` Daniel Jacobowitz
2004-11-02 14:29 ` Andrew Cagney
2004-11-07 21:35 ` Daniel Jacobowitz
2004-11-08 16:40 ` Andrew Cagney
2004-11-05 23:42 ` Daniel Jacobowitz
2004-11-07 17:36 ` Mark Kettenis
2004-11-07 21:18 ` Daniel Jacobowitz
2004-11-07 21:34 ` Mark Kettenis
2004-10-25 22:54 ` Andrew Cagney
2004-10-26 2:51 ` Roland McGrath
2004-10-26 8:17 ` Jakub Jelinek
2004-10-26 13:27 ` Daniel Jacobowitz
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