Re: threads/2292: GDB process stops when debugging threaded program

Re: threads/2292: GDB process stops when debugging threaded program

[Oleg V. Zhylin]

The following reply was made to PR threads/2292; it has been noted by GNATS.

From: "Oleg V. Zhylin" <ovz@yahoo.com>
To: jimb@red-bean.com, gdb-prs@sources.redhat.com, jimb@codesourcery.com,
  nobody@sources.redhat.com, gdb-gnats@sources.redhat.com
Cc:  
Subject: Re: threads/2292: GDB process stops when debugging threaded program
Date: Mon, 12 Nov 2007 17:43:05 -0800 (PST)

 Hi,
 
   As this issue came up again, I've checked with DDD folks, since DDD
 steps through threads successfully. DDD does use gdb as debugging
 engine, so clearly it does some configuraiton. We didn't figure out
 what exactly DDD does, but the effect of it is that gdb locates
 /lib/libthread_db.so.1. Thus it looks like my problem can be
 re-formulated 
 
  How to make gdb locate libpthread_db library?
 
 --- jimb@red-bean.com wrote:
 
 > Synopsis: GDB process stops when debugging threaded program
 > 
 > Responsible-Changed-From-To: unassigned->jimb
 > Responsible-Changed-By: jimb
 > Responsible-Changed-When: Sat Jul 28 00:19:22 2007
 > Responsible-Changed-Why:
 >     I'll keep track of this one.
 > 
 >
 http://sourceware.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=2292
 > 
 
 
 WBR Oleg V. Zhylin   ovz@yahoo.com
 
 
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Re: threads/2292: GDB process stops when debugging threaded program

[jimb]

Synopsis: GDB process stops when debugging threaded program

Responsible-Changed-From-To: unassigned->jimb
Responsible-Changed-By: jimb
Responsible-Changed-When: Sat Jul 28 00:19:22 2007
Responsible-Changed-Why:
    I'll keep track of this one.

http://sourceware.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=2292

Re: threads/2292: GDB process stops when debugging threaded program

[Jim Blandy]

The following reply was made to PR threads/2292; it has been noted by GNATS.

From: Jim Blandy <jimb@codesourcery.com>
To: Oleg V.Zhylin <vz@yahoo.com>
Cc: gdb-gnats@sources.redhat.com
Subject: Re: threads/2292: GDB process stops when debugging threaded program
Date: Fri, 27 Jul 2007 17:14:52 -0700

 I'm unable to reproduce this problem on Fedora Core 6, using CVS
 HEAD.  I'll be upgrading to FC7 soon; I'll give it a try there.

threads/2292: GDB process stops when debugging threaded program

[Oleg V.Zhylin]

>Number:         2292
>Category:       threads
>Synopsis:       GDB process stops when debugging threaded program
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jul 28 00:08:01 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     Oleg V. Zhylin <vz@yahoo.com>
>Release:        GDB CVS 2007-7-27
>Organization:
>Environment:
Fedora Core 7
>Description:
The attached program makes GDB itself stop when run.
>How-To-Repeat:
Hi Jim,

  pthread_test.cpp demonstrates the problematic behavior. It is built
using

 g++ -g pthread_test.cpp -lpthread

 The version numbers are

$ cat /proc/version
Linux version 2.6.21-1.3228.fc7
(kojibuilder@xenbuilder2.fedora.redhat.com) (gcc version 4.1.2 20070502
(Red Hat 4.1.2-12)) #1 SMP Tue Jun 12 15:37:31 EDT 2007

and gdb snapshot for July 24th

$ gdb --version
GNU gdb 6.6.50.20070724

Below is the log of gdb session

$ gdb a.out
GNU gdb 6.6.50.20070724
Copyright (C) 2007 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "i686-pc-linux-gnu"...
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) run
Starting program: /home/cartcs/Work/gdb/pthread_create/a.out
[Thread debugging using libthread_db enabled]
[New Thread 0xb7f336d0 (LWP 22251)]

[3]+  Stopped                 gdb a.out
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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Content-Type: text/x-c++src; name="pthread_test.cpp"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="pthread_test.cpp"

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