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From: John Breitenbach <breiten@lexmark.com>
To: gdb@sourceware.org
Subject: gdb-6.6/ARM/static linking/pthreads
Date: Tue, 28 Aug 2007 18:06:00 -0000	[thread overview]
Message-ID: <46D462BD.2020201@lpdev.prtdev.lexmark.com> (raw)

Hi,
  I've got a statically linked application with a dozen or so pthreads 
(nptl in glibc-2.3.6), and want to use gdb to debug it.  With gdbserver, 
I attach to the specific thread id, and can set a breakpoint.  However, 
if that breakpoint is hit by another of the pthreads, my kernel kills 
off all of them.

We had some code in the linux kernel in the past which would insert and 
remove breakpoints on context switches, and I'd like to know if that 
needs to get propagated with our kernel upgrade (to 2.6.18) or is there 
a better way.  Can gdbserver find out about the other threads, and 
handle the automatic continue if the SIGTRAP is for the wrong process.  
Or can I do something in the kernel to remove the breakpoint, 
single-step and restore the breakpoint in the case of the wrong process id?

Thanks in advance for any advice
John


             reply	other threads:[~2007-08-28 18:06 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-28 18:06 John Breitenbach [this message]
2007-08-28 18:16 ` Daniel Jacobowitz

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