[vox-tech] core files

[Michael Wenk]

On Sunday 15 February 2004 05:57 pm, Peter Jay Salzman wrote:
> On Sun 15 Feb 04,  5:53 PM, mrp <mrp@sonic.net> said:
> > On Sun, Feb 15, 2004 at 05:38:47PM -0800, Peter Jay Salzman wrote:
> > > I've noticed some core files have a number appended to them, like:
> > >
> > >    core.2342
> > >
> > > The number is most likely a pid, but I'm curious how the core file got
> > > named this way.  Is there a libc function that sets the name of a
> > > possible future core file?
> >
> > I think it's probably a function of the default signal handler for
> > the SIGABORT signal.
>
> i've used abort() tonight in one of my programs and it just gave a file
> named "core".
>
> > I don't know why it would use "core" sometimes and
> > "core.<pid>" other times.. maybe if there is already a core file it uses
> > the second form instead to avoid overwriting an existing core file.
>
> can't be this.  i've had MANY core files written in my life.  ;-)  core
> files are just overwritten, not renamed (permission granting).
>
> i've noticed that whenever opera dumps core, the corefile always has the
> number in its name.  that's kind of why i figured it might be a libc
> thing that you can control.
>
> > You might also want to look at the setrlimit(2) man page.
>
> i'll look into it.  thanks!
>
> pete

Did a bit of googling, cuz I noticed that as well and found the following 
site: 
http://www.sinz.org/Michael.Sinz/Linux/core.html

M

-- 
wenk@praxis.homedns.org
Mike Wenk