From: Mark Kettenis <mark.kettenis@xs4all.nl>
To: pedro@codesourcery.com
Cc: gdb-patches@sourceware.org
Subject: Re: [unavailable regs/locals, 0/11] Introduction
Date: Wed, 23 Feb 2011 21:52:00 -0000 [thread overview]
Message-ID: <201102232142.p1NLgx86002352@glazunov.sibelius.xs4all.nl> (raw)
In-Reply-To: <201102221337.59184.pedro@codesourcery.com> (message from Pedro Alves on Tue, 22 Feb 2011 13:37:58 +0000)
> From: Pedro Alves <pedro@codesourcery.com>
> Date: Tue, 22 Feb 2011 13:37:58 +0000
>
> On Tuesday 22 February 2011 13:27:22, Pedro Alves wrote:
> > Tested on x86_64-linux, native and gdbserver. No
> > regressions, and the new tests pass cleanly.
>
> ... and it goes without saying:
>
> I'd appreciate comments and extra eyeballs on all of this.
> Pending objections, I'd like to commit after a reasonable wait.
Pedro, I haven't looked very closely at the code yet, but I have a few
worries. The GCC debug information tends to underspecify the saved
registers in the unwind info. The unwinder code deals with
"unspecified"[1] registers by assuming they have the same value as in the
"inner" frame. How does your new code treat such "unspecified"
registers?
[1] "unspecified" is different from "undefined"
next prev parent reply other threads:[~2011-02-23 21:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-22 13:28 Pedro Alves
2011-02-22 15:54 ` Pedro Alves
2011-02-23 21:52 ` Mark Kettenis [this message]
2011-02-23 22:49 ` Pedro Alves
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