From: Daniel Jacobowitz <drow@false.org>
To: Wu Zhou <woodzltc@cn.ibm.com>
Cc: gdb@sourceware.org
Subject: Re: expected behavior when a signal is sent to the ptraced child
Date: Thu, 25 May 2006 09:06:00 -0000 [thread overview]
Message-ID: <20060525032939.GA18883@nevyn.them.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0605251036160.2738@localhost.localdomain>
On Thu, May 25, 2006 at 10:36:37AM +0800, Wu Zhou wrote:
> It will stop instead. then the wait function of the prarent (in our case,
> GDB) will return and get the control. It can inspect the status of the
> child and know what cause the child to stop. Then gdb can let the child
> continue using PTRACE_CONT, in this it can choose to delieve the signal on
> to the child, and also ignore it, and even deliver a different signal.
Yes.
> If my understanding is correct. Then a follow up question is how to make
> the child not to call its signal handler and to stop instead. The reason
> I ask this is that with one kernel, I get different result than the above
> with the following test code:
If the child receives a signal, it will stop. It looks to me as if
your kernel is not generating the signal in the normal way, i.e.
somehow bypassing normal delivery.
--
Daniel Jacobowitz
CodeSourcery
next prev parent reply other threads:[~2006-05-25 3:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-25 4:16 Wu Zhou
2006-05-25 9:06 ` Daniel Jacobowitz [this message]
2006-05-25 12:07 ` Wu Zhou
2006-05-25 13:06 ` Andreas Schwab
2006-05-25 19:37 ` Daniel Jacobowitz
2006-05-26 20:57 ` Wu Zhou
2006-05-25 13:47 Wu Zhou
2006-05-26 2:18 Wu Zhou
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20060525032939.GA18883@nevyn.them.org \
--to=drow@false.org \
--cc=gdb@sourceware.org \
--cc=woodzltc@cn.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox