From: Richard Braun <rbraun@sceen.net>
To: Yue Lu <hacklu.newborn@gmail.com>
Cc: Luis Machado <lgustavo@codesourcery.com>,
gdb@sourceware.org, bug-hurd@gnu.org,
Thomas Schwinge <thomas@codesourcery.com>
Subject: Re: how to continue from a breakpoint in GNU/Hurd
Date: Wed, 17 Jul 2013 16:13:00 -0000 [thread overview]
Message-ID: <20130717161348.GA14402@dalaran.sceen.net> (raw)
In-Reply-To: <CAB8fV=hvso0fYxZwm11DTYaZeGrdaMG9nzE04G1G-TbR6wyDOw@mail.gmail.com>
On Thu, Jul 18, 2013 at 12:07:20AM +0800, Yue Lu wrote:
> when I used thread_info() to check the suspend count, they are zero.
> But I met a strange thing.
> this is my code snippet:
> thread_basic_info_data_t _info;
> thread_basic_info_t info = &_info;
> mach_msg_type_number_t info_len = THREAD_BASIC_INFO_COUNT;
> error_t err =
> thread_info (thread->port, THREAD_BASIC_INFO, (int *) &info, &info_len);
>
> after this call, the info turn out to be a _NULL_ pointer. I think
If the info pointer is NULL, how do you determine the suspend count ?
> something maybe wrong, but the err is zero.
Something does look wrong. Check all the parameters of your call, one
by one, rigorously.
--
Richard Braun
next prev parent reply other threads:[~2013-07-17 16:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAB8fV=i04n-eHTxP=7hWRkB7O1VJobvrMc5KSHOX0SkJ3vuqhQ@mail.gmail.com>
2013-07-16 16:44 ` Luis Machado
2013-07-16 17:05 ` Yue Lu
2013-07-16 17:26 ` Luis Machado
[not found] ` <CAB8fV=jnOcYCGmQ_emcoE0ZYH6MjT3K3a1P8=svRR+nKSMD69A@mail.gmail.com>
2013-07-17 12:10 ` Richard Braun
2013-07-17 16:07 ` Yue Lu
2013-07-17 16:13 ` Richard Braun [this message]
2013-07-17 16:22 ` Yue Lu
2013-07-18 9:03 ` Richard Braun
2013-07-16 16:45 Yue Lu
2013-07-16 17:29 ` Hui Zhu
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