From: Yao Qi <qiyaoltc@gmail.com>
To: Antoine Tremblay <antoine.tremblay@ericsson.com>
Cc: Yao Qi <qiyaoltc@gmail.com>, <gdb-patches@sourceware.org>
Subject: Re: [PATCH 0/4] Support tracepoints for ARM linux in GDBServer
Date: Wed, 27 Apr 2016 08:00:00 -0000 [thread overview]
Message-ID: <86lh3zfpn2.fsf@gmail.com> (raw)
In-Reply-To: <wwokeg9s18z2.fsf@ericsson.com> (Antoine Tremblay's message of "Tue, 26 Apr 2016 15:11:13 -0400")
Antoine Tremblay <antoine.tremblay@ericsson.com> writes:
> From what I can tell issue 1) is about done ?
>
There are still some things we need to do before arm tracepoint support,
and I am working on them,
- really exercise the software single step in gdbserver,
1. software single step over instruction branch to itself. [DONE]
2. force gdb to use vCont;s for gdbserver using software single step,
IOW, let gdbserver handle single step requested by gdb,
3. turn range stepping on on arm linux,
I have some patches in my tree. After these steps, we are confident
that software single step in gdbserver is reliable.
> On my end we have fast tracepoints for arm almost ready with JIT
> conditions and pc relative instructions relocation.
>
> I would like to post that in the next few weeks, but it would be
> better if the normal tracepoints were in before that.
>
> Is it a good time to review these patches now?
- handle unavailable memory/register in frame unwinding in target
independent part, so that we don't have to worry about the
unavailable memory in arm backend.
I am writing a prototype according to Pedro's thoughts,
https://sourceware.org/ml/gdb-patches/2016-02/msg00778.html
but it is blocked by a patch related PR 19947,
https://sourceware.org/ml/gdb-patches/2016-04/msg00429.html
we need an approach to test each unwinder, the discussion is still
ongoing.
I won't review arm tracepoint patches until all of them above are
fixed.
--
Yao (齐尧)
next prev parent reply other threads:[~2016-04-27 8:00 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-07 17:45 Antoine Tremblay
2016-01-07 17:45 ` [PATCH 2/4] Use the target architecture when encoding tracepoint actions Antoine Tremblay
2016-02-06 20:58 ` Marcin Kościelnicki
2016-02-11 13:02 ` Pedro Alves
2016-02-11 13:21 ` Antoine Tremblay
2016-01-07 17:45 ` [PATCH 1/4] Teach arm unwinders to terminate gracefully Antoine Tremblay
2016-02-12 14:46 ` Yao Qi
2016-02-24 17:57 ` Antoine Tremblay
2016-02-25 11:44 ` Pedro Alves
2016-02-25 13:15 ` Antoine Tremblay
2016-02-26 9:12 ` Yao Qi
2016-02-26 12:26 ` Antoine Tremblay
2016-02-26 14:25 ` Yao Qi
2016-02-26 20:10 ` Antoine Tremblay
2016-04-06 15:54 ` Yao Qi
2016-04-06 16:30 ` Pedro Alves
2016-04-07 16:33 ` Yao Qi
2016-05-04 16:24 ` Yao Qi
2016-01-07 17:45 ` [PATCH 3/4] Enable tracing of pseudo-registers on ARM Antoine Tremblay
2016-02-12 15:14 ` Yao Qi
2016-02-12 15:54 ` Marcin Kościelnicki
2016-02-15 10:27 ` Yao Qi
2016-02-15 10:57 ` Pedro Alves
2016-02-15 14:46 ` [PATCH v2] " Antoine Tremblay
2016-02-19 16:33 ` Antoine Tremblay
2016-02-19 19:29 ` [PATCH v3] " Antoine Tremblay
2016-02-19 20:06 ` [PATCH v4] " Antoine Tremblay
2016-02-19 20:22 ` [PATCH v3] " Pedro Alves
2016-02-19 20:32 ` Antoine Tremblay
2016-02-22 11:51 ` Yao Qi
2016-02-22 16:51 ` Antoine Tremblay
2016-02-24 18:11 ` Pedro Alves
2016-02-24 18:21 ` Marcin Kościelnicki
2016-02-24 18:33 ` Pedro Alves
2016-02-24 18:55 ` Antoine Tremblay
2016-02-24 19:02 ` Pedro Alves
2016-02-24 19:02 ` Antoine Tremblay
2016-02-23 19:34 ` Antoine Tremblay
2016-02-24 18:20 ` Pedro Alves
2016-02-24 18:47 ` Antoine Tremblay
2016-02-23 19:41 ` [PATCH v5] " Antoine Tremblay
2016-02-24 19:12 ` Pedro Alves
2016-02-24 19:25 ` Antoine Tremblay
2016-02-25 10:35 ` Yao Qi
2016-02-25 15:33 ` [PATCH v6] " Antoine Tremblay
2016-02-25 17:59 ` Pedro Alves
2016-02-25 18:19 ` Antoine Tremblay
2016-02-26 8:34 ` Yao Qi
2016-02-26 13:00 ` Antoine Tremblay
2016-02-26 13:03 ` [PATCH v7] " Antoine Tremblay
2016-02-26 14:14 ` Yao Qi
2016-02-26 14:57 ` Antoine Tremblay
2016-02-26 14:59 ` [PATCH v8] " Antoine Tremblay
2016-02-26 15:57 ` Yao Qi
2016-02-26 17:45 ` Antoine Tremblay
2016-01-07 17:45 ` [PATCH 4/4] Support tracepoints for ARM linux in GDBServer Antoine Tremblay
2016-02-08 14:45 ` Antoine Tremblay
2016-01-11 12:17 ` [PATCH 0/4] " Yao Qi
2016-01-11 12:56 ` Antoine Tremblay
2016-01-11 13:41 ` Yao Qi
2016-04-26 19:11 ` Antoine Tremblay
2016-04-27 8:00 ` Yao Qi [this message]
2016-04-27 12:07 ` Antoine Tremblay
2016-04-27 13:57 ` Yao Qi
2016-04-27 14:41 ` Antoine Tremblay
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