Failures on Ubuntu-AArch32-native-extended-gdbserver-m32, branch master

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	ubuntu-trusty-aarch32-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Ubuntu-AArch32-native-extended-gdbserver-m32/builds/1128>

Commit(s) tested:
	b33404388e5bbd8a1fddfde73cd4593ae2b557e8

Author(s) (in the same order as the commits):
	H.J. Lu <hjl.tools@gmail.com>

Subject:
	gdb: Fix build failure with GCC 7

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/results/Ubuntu-AArch32-native-extended-gdbserver-m32/b3/b33404388e5bbd8a1fddfde73cd4593ae2b557e8/>

*** Diff to previous build ***
============================
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=5: wait for stops
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=7: wait for stops
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=8: wait for stops
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=9: wait for stops
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=11: wait for stops
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=13: wait for stops
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=16: wait for stops
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=17: wait for stops
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=18: wait for stops
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=19: wait for stops
============================


*** Complete list of XFAILs for this builder ***

FAILURE TO OBTAIN THE COMMIT FOR THE XFAIL LIST.  PLEASE CONTACT THE BUILDBOT ADMIN.