Re: [Qemu-devel] [PATCH] implement CLONE_CHILD_CLEARTID

[Lauro Ramos Venancio]

On Thu, 2008-10-16 at 14:19 +0100, Paul Brook wrote:

> Using the host set_tid_address is wrong. This is liable to break the host 
> libc/libpthread.  The current set_tid_address implementation is similarly 
> broken.

I know that the clone implementation is far from the perfection and it
is very hard to implement all the clone flags using a high level API
(pthread). 

This patch doesn't break seriously the host libc/libpthread. Pthread
uses the tid_address only for pthread_join. So, actually, this patch
breaks the host pthread_join (and pthread_timedjoin_np), but it makes
the emulated pthread_join work. As the qemu doesn't use pthread_join, I
think it worth to apply this patch.
 
-- 
Lauro Ramos Venancio
INdT - Instituto Nokia de Tecnologia

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