Merge GDB 7.5.1

gdb/testsuite/gdb.trace/stap-trace.c

+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2012 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/>.  */
+
+#if USE_PROBES
+
+#define _SDT_HAS_SEMAPHORES
+__extension__ unsigned short test_user_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
+#define TEST test_user_semaphore
+
+__extension__ unsigned short test_two_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes")));
+#define TEST2 test_two_semaphore
+
+#else
+
+#define TEST 1
+#define TEST2 1
+
+#endif /* USE_PROBES */
+
+#include <sys/sdt.h>
+
+/* We only support SystemTap and only the v3 form.  */
+#if _SDT_NOTE_TYPE != 3
+#error "not using SystemTap v3 probes"
+#endif
+
+void
+m1 (int x)
+{
+  if (TEST2)
+    STAP_PROBE1 (test, two, x);
+}
+
+int
+f (int x)
+{
+  if (TEST)
+    STAP_PROBE1(test, user, x);
+  return x+5;
+}
+
+void
+nothing (void)
+{
+  int a = 1 + 1;
+  return;
+}
+
+int
+main()
+{
+  f (f (23));
+  m1 (46);
+  nothing (); /* end-here */
+
+  return 0;
+}