From: teawater <teawater@gmail.com>
To: "Pedro Alves" <pedro@codesourcery.com>
Cc: "Michael Snyder" <msnyder@vmware.com>,
"Eli Zaretskii" <eliz@gnu.org>,
gdb-patches@sourceware.org, brobecker@adacore.com
Subject: Re: [RFA] Displaced stepping just enable in non-stop mode
Date: Fri, 17 Oct 2008 16:01:00 -0000 [thread overview]
Message-ID: <daef60380810170900m49c86ad3r248b3a5ffdf6d027@mail.gmail.com> (raw)
In-Reply-To: <200810171548.12752.pedro@codesourcery.com>
P record can support displaced stepping but it don't support non-step.
So we remove this code.
On Fri, Oct 17, 2008 at 22:48, Pedro Alves <pedro@codesourcery.com> wrote:
> On Thursday 16 October 2008 22:15:30, Michael Snyder wrote:
>> What it looks like is that you try to write to memory
>> that's write-protected.
>>
>> This is because most replay targets will treat all of memory
>> as write-protected when they are in replay mode.
>>
>> Where this usually manifests is, you'll say "continue"
>> (probably for the first time since attaching to the target),
>> and it'll croak because it's trying to step over some
>> "invisible" breakpoint such as the one that handles
>> shared libraries.
>
> I see, then this means that all the reverse targets in existance
> implement inserting breakpoints (target_insert_breakpoint, Z packet),
> instead of relying on memory breakpoints. Ah, the record target
> just ignores breakpoint insertions, and relies on forcing single-stepping
> and checking breakpoint hits itself.
>
> --
> Pedro Alves
>
next prev parent reply other threads:[~2008-10-17 16:01 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-07 6:27 teawater
2008-10-07 12:18 ` Joel Brobecker
2008-10-08 6:11 ` teawater
2008-10-09 14:50 ` Pedro Alves
2008-10-10 3:38 ` teawater
2008-10-14 7:36 ` teawater
2008-10-16 0:07 ` Pedro Alves
2008-10-16 2:29 ` teawater
2008-10-16 2:39 ` Daniel Jacobowitz
2008-10-16 2:59 ` Pedro Alves
2008-10-22 3:16 ` teawater
2008-10-22 19:48 ` Eli Zaretskii
2008-10-23 8:13 ` teawater
2008-10-23 12:57 ` Pedro Alves
2008-10-24 2:49 ` teawater
2008-10-16 8:13 ` Eli Zaretskii
2008-10-16 12:35 ` Daniel Jacobowitz
2008-10-16 18:27 ` Eli Zaretskii
2008-10-16 18:33 ` Daniel Jacobowitz
2008-10-16 21:19 ` Michael Snyder
2008-10-17 5:46 ` teawater
2008-10-17 10:02 ` Eli Zaretskii
2008-10-17 15:05 ` Pedro Alves
2008-10-17 16:09 ` teawater
2008-10-17 14:48 ` Pedro Alves
2008-10-17 16:01 ` teawater [this message]
2008-10-17 17:33 ` Michael Snyder
2008-10-17 19:47 ` Jakob Engblom
2008-10-17 19:49 ` Michael Snyder
2008-10-17 14:51 ` Pedro Alves
2008-10-17 15:53 ` Eli Zaretskii
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