Rename disp-step-syscall.exp to step-over-syscall.exp

disp-step-syscall.exp is extended for stepping over syscall instruction
in different cases, with or without displaced stepping, and stepping
over by GDBserver.

This patch rename disp-step-syscall.exp to step-over-syscall.exp to
reflect this.

gdb/testsuite:

2016-03-03  Yao Qi  <yao.qi@linaro.org>

	* gdb.base/disp-step-fork.c: Rename to ...
	* gdb.base/step-over-fork.c: ... it.  New file.
	* gdb.base/disp-step-vfork.c: Rename to ...
	* gdb.base/step-over-vfork.c: ... it.  New file.
	* gdb.base/disp-step-syscall.exp: Rename to ...
	* gdb.base/step-over-syscall.exp: ... it.  New file.
	(disp_step_cross_syscall): Rename to ...
	(step_over_syscall): ... it.

1 files changed, 58 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/step-over-fork.c b/gdb/testsuite/gdb.base/step-over-fork.c
new file mode 100644
index 0000000..dd84f57
--- /dev/null
+++ b/gdb/testsuite/gdb.base/step-over-fork.c
@@ -0,0 +1,58 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2011-2016 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <stdlib.h>
+#include <unistd.h>
+
+static void
+marker () {}
+
+int
+main (void)
+{
+  int  pid;
+
+  pid = fork ();
+  if (pid == 0) /* child */
+    {
+      exit (0); /* at exit */
+    }
+  else
+    {
+    }
+
+  pid = fork ();
+  if (pid == 0) /* child */
+    {
+      exit (0); /* at exit */
+    }
+  else
+    {
+    }
+
+  pid = fork ();
+  if (pid == 0) /* child */
+    {
+      exit (0); /* at exit */
+    }
+  else
+    {
+    }
+
+  marker ();
+
+}