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From:	"Dave Korn" <dave DOT korn AT artimi DOT com>
To:	<cygwin AT cygwin DOT com>
Subject:	RE: Segfault in Cactid
Date:	Fri, 2 Sep 2005 11:11:17 +0100
MIME-Version:	1.0
In-Reply-To:	<loom.20050902T113935-922@post.gmane.org>
Message-ID:	<SERRANOWerOc0Ne0PaL0000007b@SERRANO.CAM.ARTIMI.COM>

----Original Message----
>From: Larry Adams
>Sent: 02 September 2005 10:48

> Brian Dessent <brian <at> dessent.net> writes:
> 
>> 
>> Larry Adams wrote:
>> 
>>> So my questions are: How do I trace the memory location above to a
>>> known system call using gdb?  When, I attach to my hung process, what
>>> should I be doing to determine the calling/offending function.
>> 
>> Build a cygwin1.dll with debug symbols and then use addr2line.  Or use
>> strace.  At the very least you should try the latest snapshot to see if
>> it fixes your problem. 
>> 
> 
> Brian, I am assuming that I can just download the latest cygwin of winsup
> and then configure/make.  What configure/make options should I be using to
> incorporate debug symbols?

  I may not be Brian, but I like to use

make CPPFLAGS_FOR_TARGET='-g -O0' CFLAGS_FOR_TARGET='-g -O0'
CXXFLAGS_FOR_TARGET='-g -O0' all 2>&1 | tee build.log
 
which gets you an unoptimised debug build.  Killing optimisation makes
stepping through the source much easier as it doesn't jump around all over
the place.


    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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