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Date: Fri, 06 Jul 2012 06:31:00 -0000
From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: orglinux@sina.com
Cc: gdb <gdb@sourceware.org>
Subject: Re: please ask a question abput breakpoint
Message-ID: <20120706063051.GA20479@host2.jankratochvil.net>
References: <20120706032345.CD1DB978618@webmail.sinamail.sina.com.cn>
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On Fri, 06 Jul 2012 05:23:45 +0200, orglinux@sina.com wrote:
> Hi, GDB developpers:  In mulit-threading ,when a thread encounter
> a breadpoint, how  does the gdbserver find out  the thread encounting the
> breakpoint? Because many threads may encounter the same breakpoint.

In the case of Linux kernel it reports SIGTRAP for the specific task
(=thread).  waitpid returns PID (TID) of that thread.


Regards,
Jan