[PATCH] pthread_attr_getstack{,addr}, pthread_getattr_np

Christopher Faylor cgf-use-the-mailinglist-please@cygwin.com
Mon May 2 20:11:00 GMT 2011

On Mon, May 02, 2011 at 10:33:09AM -0500, Yaakov (Cygwin/X) wrote:
>This implements pthread_attr_getstack(), pthread_attr_getstackaddr, and
>pthread_getattr_np(), which I need for webkitgtk.
>In essence, I added a stackaddr member to pthread_attr, which is
>accessed (slightly differently) by pthread_attr_getstack{,attr},
>behaving just as on Linux.  The bulk of the work is to support
>pthread_getattr_np, which provides the real attributes of the given
>thread, including the real stack address and size.
>The pthread_attr_setstack{,addr} setters are not implemented, as I have
>yet to find a way to set the thread stack address on Windows.  For that
>reason I'm not defining _POSIX_THREAD_ATTR_STACKADDR, as the feature is
>not yet (fully) implemented.

Cygwin already plays with the stack address.  It has to for situations
when you call fork() from a thread.

>Patches for winsup/cygwin and winsup/doc, as well as a sample program
>for Cygwin and Linux, attached.

The patch looks good.  Please check in.



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