Chances are you are overflowing your main function stack. Gdb is your
best asset to watch the what's going on.
On 30 octobre 2012 21:42:32 Leslie S Satenstein <[email protected]> wrote:
Regards
Leslie
Mr. Leslie Satenstein
50 years in Information Technology and going strong.
Yesterday was a good day, today is a better day,
and tomorrow will be even better.
mailto:[email protected]
alternative: [email protected]
www.itbms.biz www.eclipseguard.com
--- On Tue, 10/30/12, Jérôme Oufella
<[email protected]> wrote:
From: Jérôme Oufella <[email protected]>
Subject: Re: [MLUG] How to stop programs generating segmentation error
messages on exit
To: "Montreal Linux Users Group" <[email protected]>
Date: Tuesday, October 30, 2012, 5:47 PM
Hi Leslie,
Have the programs been compiled on the same environment as the one they
are running ?
Jerome
Hi Guys,
My home dir is leslie
In responding to your questions,
Yes, I am preparing software for 32 and 64 bit systems. I have the same
source and makefile on each system for each sized compiler. The
command echo $PATH shows /home/leslie/bin as being in it with
appropriate ownerships and accesses With Ubuntu /home/leslie/bin
first before the rest of the $PATH entries. In Fedora it is at the end.
my program is called desfed and without arguments, it just issues
an info message and exits with exit(EXIT_SUCCESS);
The exit(EXIT_SUCCESS) was calling an atexit() function. I temporarily removed
the atexit() call and the same problem remains.
The code I use calls malloc, but here again, it is for dynamically
fixed size items. Any overrun with malloc would have burped with a
memory dump. This is not the problem as the info message does not do
malloc calls, It is just a series of a few printf commands.
Some of the things I tried.
If I create a one line shell script and all it has on one line alone is
desfed, I get a segmentation error.
if I add the path as /home/leslie/bin/desfed all works OK.
I am beginning to suspect a faulty gcc library entry. One function I
am using is a system function realpath(), which provides for the
expansion of path names such as "../../" etc. realpath does do malloc
calls. My program, without arguments goes directly to print the info stuff.
Googling failed to give me the answer. So, I will be exploring what is
the reason using the qualified name /home/leslie/bin/desfed works
whereas desfed alone does not. Otherwise the code passes all my
test scripts, of which there are many.
I thought perhaps you had this problem before, and knew what to do.
I am running in terminal mode, under gnome 3.6 and with Unity 12,04
under the LTS version (both 32 and 64 bit modules produce correct results).
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