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X-Authentication-Warning: slinky.cs.nyu.edu: pechtcha owned process doing -bs
Date: Thu, 22 Jan 2004 21:01:53 -0500 (EST)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: David Rothenberger <daveroth AT acm DOT org>
cc: cygwin AT cygwin DOT com
Subject: Re: bash, dircolors, setsid and a stackdump
In-Reply-To: <40107AD3.8070900@acm.org>
Message-ID: <Pine.GSO.4.56.0401222057490.21894@slinky.cs.nyu.edu>
References: <Law9-OE408FeHQYTTIA00007be5 AT hotmail DOT com> <40107AD3 DOT 8070900 AT acm DOT org>
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Content-Type: TEXT/PLAIN; charset=US-ASCII

On Thu, 22 Jan 2004, David Rothenberger wrote:

> Rafael Kitover wrote:
>
> > I would dearly love to know how you get those lovely line numbers in the
> > stackdump :)
>
> I used the unstripped DLL from my CVS build and then used addr2line on
> each function address in the stacktrace, specifying the DLL as the
> executable.  I.e.,
>
> addr2line -e /bin/cygwin1.dll <ADDRESS>
>
> I don't know whether it's necessary to be running the unstripped DLL when
> the stacktrace is generated, but I was.

It is.  If you think about it, it's rather obvious...  If you run one DLL
and then use another as the executable for addr2line, the addresses are
all going to be different.

> I have since discovered that while dircolors does cause the stackdump, the
> problem is not dircolors.  With that line commented from /etc/profile, I
> don't get a stackdump but the script does not complete its execution.

Hmm...  Note that to use the dircolors file, one needs to do a back-quote
substitution.  Just an observation.
	Igor

> I determined this by executing the script
>
> ---begin script---
> #!/bin/sh
> echo foo > t
> sleep 10
> ---end script---
>
> and noting that t was created but of zero length.
>
> Dave

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