Re: [Linux-ia64] Re: prctl patch for fpu faults

Jesse Barnes
2001-10-10T22:57:21Z

Can't prctl take up to 5 args though? If binary compatibility were an
issue, a new prctl could be made that accepts a pid as well, right?

Jesse

On Wed, 10 Oct 2001, David Mosberger wrote:

> >>>>> On Wed, 10 Oct 2001 15:31:22 -0700, Jesse Barnes <jbarnes@sgi.com> said:
>
> Jesse> I was thinking of hacking up the 'prctl' tool to take a PID
> Jesse> as an argument, that way it could set the flags for any task.
> Jesse> It would allow an initscript to set init's flags, among other
> Jesse> things. Would such a change qualify as a cleaner solution?
>
> Yes, but how do you change the settings for the target process?
> prctl(2) can only change the setting of the calling process (there is
> no pid argument). You can't do it via ptrace() either.
>
> --david
>