RE: [Linux-ia64] _clone system call

["Boehm, Hans" <hans_boehm@hp.com>]

The _clone function can't be usefully implemented on Itanium, since it doesn't provide for a place to put the register stack.  If you really have to, use __clone2 instead.  Its interface is identical to __clone except that an additional argument is added after the stack base; it's the stack size.

Under most circumstances, pthread_create is greatly preferred to either __clone or __clone2.  The problem with calling __clone or __clone2 directly is that things are unlikely to work correctly if another library routine also want to create a thread or needs to provide for mutual exclusion.

Hans

> -----Original Message-----
> From: Wedum, Patricia [mailto:patricia.wedum@intel.com]
> Sent: Tuesday, May 28, 2002 3:34 PM
> To: 'linux-ia64@linuxia64.org'
> Subject: [Linux-ia64] _clone system call
> 
> 
> 
> 
> I have been unable to find an implementation for the _clone 
> function call
> (calls clone2 system call).
> 
> Does anyone know if it exists for ia64, I found an i386 
> implementation in
> the latest glibc? I see the
> pthread library making a call to clone2 but it is not using the _clone
> interface.
> 
> Thank You
> Patricia
> 
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