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From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: Oleg Nesterov <oleg@redhat.com>
Cc: archer@sourceware.org, utrace-devel@redhat.com
Subject: Re: gdbstub initial code, v7
Date: Fri, 03 Sep 2010 06:40:00 -0000	[thread overview]
Message-ID: <20100903064008.GA16249@host1.dyn.jankratochvil.net> (raw)
In-Reply-To: <20100902200632.GA23692@redhat.com>

On Thu, 02 Sep 2010 22:06:32 +0200, Oleg Nesterov wrote:
> I assume that qXfer:siginfo:read always mean Hg thread.

It seems so.

> It is not clear to me what should ugdb report if there is no a valid
> siginfo.  linux_xfer_siginfo() return E01, but gdbserver uses SIGSTOP to
> stop the tracee,

I find error more appropriate in such case.

> Likewise, it is not clear what should ugdb do if gdb sends
> $CSIG in this case.

Currently GDB does not do anything special, that is if there is siginfo for
signal SIGUSR1 but one does $C0B (SIGSEGV) does ptrace reset the siginfo or is
left the SIGUSR1 siginfo for SIGSEGV?

> But this all is minor, I think.

As this is being discussed for GDB I would find enough to just make $_siginfo
accessible without these details.


Thanks,
Jan

  reply	other threads:[~2010-09-03  6:40 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-30 19:02 Oleg Nesterov
2010-08-30 19:20 ` Jan Kratochvil
2010-08-31  7:21   ` Jan Kratochvil
2010-09-02 20:09     ` Oleg Nesterov
2010-09-03  6:40       ` Jan Kratochvil [this message]
2010-09-03 19:59         ` Roland McGrath
2010-09-03 20:03           ` Jan Kratochvil
2010-09-03 20:10             ` Roland McGrath
2010-09-03 23:13         ` Oleg Nesterov
2010-09-10 10:15           ` Roland McGrath
2010-09-10 18:32             ` Oleg Nesterov
2010-09-10 19:06               ` Roland McGrath
2010-09-10 19:23                 ` Oleg Nesterov
2010-10-13  7:23                   ` Roland McGrath
2010-10-15 14:32                     ` Oleg Nesterov
2010-09-03 14:17       ` Frank Ch. Eigler
2010-09-03 23:00         ` Oleg Nesterov

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