tst-pthread-getattr changes break sparc

[Siddhesh Poyarekar]

On Fri, 27 Jul 2012 09:55:31 -0700 (PDT), Roland wrote:

> It looks like you are assuming the exact page size instead of
> using sysconf.

Right, sorry. Updated patch attached -- I've also updated the
siddhesh/getattr branch.

Regards,
Siddhesh

nptl/ChangeLog:

2012-07-27  Siddhesh Poyarekar  <siddhesh@redhat.com>

	* tst-pthread-getattr.c (MAX_STACK_SIZE): New macro.
	(_MIN): New macro function.
	(pagesize): New static variable.
	(allocate_and_test): Return MEM.  Rename parameter to TARGET.
	(check_stack_top): New local variable MEM.  Cap stack size
	to MAX_STACK_SIZE using _MIN.  Call allocate_and_test for
	halfway up the stack top page.  Verify that the top page was
	written into.
	(do_test): Get pagesize using sysconf.
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