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/467>

Commit(s) tested:
	49e66b4debebff088958077201eabab36df168f0

Author(s) (in the same order as the commits):
	Simon Marchi <simon.marchi@polymtl.ca>

Subject:
	proc-service.c: Add (gdb_byte *) cast

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/cgit/RHEL-s390x-m64/.git/tree/?h=master&id=cb8ba5c38663211d484dd88fad7fae1dfcf2d53e>

*** Regressions found ***
============================
PASS -> FAIL: gdb.base/siginfo-thread.exp: Extract si_errno
============================


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