On 03/08, Ulrich Drepper wrote:
>
> On 03/08/2010 08:44 PM, KOSAKI Motohiro wrote:
> > I don't think this is big matter. Does using syscall have any benefit?
> > I don't have strong mention. merely, Timo's original proposal used
> > prctl.
>
> Syscalls don't have to go through the multiplexer in grab bag calls like
> prctl, ioctl, etc.  And they are more reliably to test for at runtime.
> An ENOSYS error is unmistakably clear.  An EINVAL error, as returned by
> prctl when encountering an unknown function argument, could also mean
> the argument isn't valid.  That's a common problem of most multiplexer
> syscalls and a reason why they should be avoided.

Agreed, but this applies to any prtcl() request. And we already have
PR_GET_NAME/PR_SET_NAME which is very close to PR_SET_PROCTITLE_AREA.

So, do you really think that this particular case deserves the new
syscall?

Oleg.

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