Very Computer

Hi, I hope this newsgroup is appropriate enough for a
hopefully simple Linux development question.

I am using Linux as a development platform at work but
for some reason, Linux does NOT generate a coredump
when a program crashes.

It would be nice to say, "Well, that's because no
programs are ever crashing."  Unfortunately, that is
not the case.  :)

Is there something I need to do in the kernel, or
compiler (gcc) to enable coredumps or something?

In my understanding the abort() function should always
generate a coredump, yet no core file is created by the
following program:

   #include <stdlib.h>

   int main( int argc, char * argv[] )
   {
      abort();
      return 0;
   }

When that program is compiled and run on HP/UX version
9.05, it DOES generate a coredump.  So, theoretically
that program "works."

Unless the core files are being very cleverly hidden
someplace on my system and I simply cannot find them,
of course.  :)

I'm running Linux version 1.2.13 (outdated, I'm sure!)
and using gcc version 2.7.0 on this machine.

Thanks for your help!

--
 +====================+==============================+

 |     Programmer     +------------------------------+
 | Kesmai Corporation | Opinions are mine, ALL mine! |
 +====================+==============================+

If you're using tcsh, use the following command:

limit coredumpsize 0

If you're using bash or zsh, use this:

ulimit -c 0

You will probably want to put the appropriate command in your .tcshrc,
.profile, or .zshrc to get it to happen automatically at login.

Hope this helps,

  Sumner Hayes

Markus

Quote:> Of course, the "0" should be replaced with "unlimited" in all of the
> above examples. Besides, if you want to enable coredumps system-wide,
> you can put these commands into /etc/profile. As Linux usually uses
> bash as /bin/sh, you would have to add "ulimit -c unlimited".

--
 +====================+==============================+

 |     Programmer     +------------------------------+
 | Kesmai Corporation | Opinions are mine, ALL mine! |
 +====================+==============================+

                 ____

                  \/