[commit] [3/3] watchpoints across vfork regressions - testcase

[Pedro Alves <pedro at codesourcery dot com>]

This adds a testcase that covers these regressions.  Applied.

-- 
Pedro Alves

2009-11-15  Pedro Alves  <pedro@codesourcery.com>

	gdb/testsuite/
	* gdb.base/watch-vfork.c, gdb.base/watch-vfork.exp: New.

---
 gdb/testsuite/gdb.base/watch-vfork.c   |   41 ++++++++++++++++++++++++++
 gdb/testsuite/gdb.base/watch-vfork.exp |   52 +++++++++++++++++++++++++++++++++
 2 files changed, 93 insertions(+)

Index: src/gdb/testsuite/gdb.base/watch-vfork.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ src/gdb/testsuite/gdb.base/watch-vfork.c	2009-11-15 19:36:59.000000000 +0000
@@ -0,0 +1,41 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2009 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 <unistd.h>
+
+int *global;
+
+int
+main (void)
+{
+  int pid;
+
+  pid = vfork ();
+  if (pid == -1)
+    {
+      return 1;
+    }
+  else if (pid != 0)
+    {
+      global = &pid;
+    }
+  else
+    {
+      _exit (0);
+    }
+  return 0;
+}
Index: src/gdb/testsuite/gdb.base/watch-vfork.exp
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ src/gdb/testsuite/gdb.base/watch-vfork.exp	2009-11-15 19:38:31.000000000 +0000
@@ -0,0 +1,52 @@
+# This testcase is part of GDB, the GNU debugger.
+
+# Copyright 2009 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/>.
+
+global srcfile
+set testfile "watch-vfork"
+if { [build_executable ${testfile}.exp ${testfile} ${testfile}.c {debug}] } {
+    untested ${testfile}.exp
+    return -1
+}
+
+proc test_watchpoint_across_vfork { hw teststr } {
+    global testfile
+
+    clean_restart ${testfile}
+
+    if { ![runto main] } then {
+	fail "run to main ($teststr)"
+	return
+    }
+
+    if { ! $hw } {
+	gdb_test "set can-use-hw-watchpoints 0" "" ""
+    }
+
+    gdb_test "watch global" \
+	"atchpoint .*: global" \
+	"Watchpoint on global variable ($teststr)"
+
+    gdb_test "continue" \
+	"atchpoint .*: global.*" \
+	"Watchpoint triggers after vfork ($teststr)"
+}
+
+if { ![target_info exists gdb,no_hardware_watchpoints] } {
+    test_watchpoint_across_vfork 1 "hw"
+}
+
+test_watchpoint_across_vfork 0 "sw"