Failures on RHEL-s390x-m64, branch master

[sergiodj+buildbot@redhat.com]

Buildslave:
	rhel-7.1-s390x-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/RHEL-s390x-m64/builds/576>

Commit(s) tested:
	1a2ccd2e32ecf767973bf96b965e915bd0a04bf3

Author(s) (in the same order as the commits):
	Walfred Tedeschi <walfred.tedeschi@intel.com>

Subject:
	Changing compiler flags for MPX tests.

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/cgit/RHEL-s390x-m64/.git/tree/?h=master&id=646929d9400db7459044ebb396b45b4af337c502>

*** Regressions found ***
============================
PASS -> FAIL: gdb.base/siginfo-thread.exp: Extract si_errno
new FAIL: gdb.python/python.exp: set the hook
PASS -> FAIL: gdb.python/python.exp: set the hook to default <<2>>
PASS -> FAIL: gdb.threads/watchthreads.exp: threaded watch loop
PASS -> FAIL: gdb.threads/watchthreads.exp: combination of threaded watchpoints = 30
============================


*** Regressions against the baseline ***
============================
PASS -> FAIL: gdb.base/siginfo-thread.exp: Extract si_errno
PASS -> FAIL: gdb.python/python.exp: set the hook to default <<2>>
PASS -> FAIL: gdb.threads/watchthreads.exp: threaded watch loop
PASS -> FAIL: gdb.threads/watchthreads.exp: combination of threaded watchpoints = 30
============================