Remove remains of rwlock elision which is not implemented yet.

Signed-off-by: Carlos O'Donell <carlos@redhat.com>

---

nptl/
2013-07-19  Dominik Vogt  <vogt@de.ibm.com>

	* sysdeps/unix/sysv/linux/x86/elision-conf.c:
	Remove __rwlock_rtm_enabled and __rwlock_rtm_read_retries.
	(elision_init): Don't set __rwlock_rtm_enabled.
	* sysdeps/unix/sysv/linux/x86/elision-conf.h:
	Remove __rwlock_rtm_enabled.
Clean up whitespace in lock elision patches.

Signed-off-by: Carlos O'Donell <carlos@redhat.com>
tile: add missing semicolon in <bits/ptrace.h>

Change 521c6785e1fc94d added the enum but missed the semicolon.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
m68k: use _dl_static_init to set GLR0(dl_pagesize)
Update Sparc ULPs.

	* sysdeps/sparc/fpu/libm-test-ulps: Update ULPs to handle minor
	difference between 32-bit and 64-bit.
CVE-2013-2207, BZ #15755: Disable pt_chown.

The helper binary pt_chown tricked into granting access to another
user's pseudo-terminal.

Pre-conditions for the attack:

 * Attacker with local user account
 * Kernel with FUSE support
 * "user_allow_other" in /etc/fuse.conf
 * Victim with allocated slave in /dev/pts

Using the setuid installed pt_chown and a weak check on whether a file
descriptor is a tty, an attacker could fake a pty check using FUSE and
trick pt_chown to grant ownership of a pty descriptor that the current
user does not own.  It cannot access /dev/pts/ptmx however.

In most modern distributions pt_chown is not needed because devpts
is enabled by default. The fix for this CVE is to disable building
and using pt_chown by default. We still provide a configure option
to enable hte use of pt_chown but distributions do so at their own
risk.