[SCM] archer-swagiaal-oguz: gdbpy_selected_thread: Added check for pid == 0.

[SCM] archer-swagiaal-oguz: gdbpy_selected_thread: Added check for pid == 0.

[swagiaal]

The branch, archer-swagiaal-oguz has been updated
       via  b1c0beba3bf927d0f22c4db603f4223834dff305 (commit)
       via  40575c1a1d675b785ba979dac3ef508fd2bb2fca (commit)
      from  4cad63d916d773b33ccd5cb2f2e6091988b09c45 (commit)

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- Log -----------------------------------------------------------------
commit b1c0beba3bf927d0f22c4db603f4223834dff305
Author: Sami Wagiaalla <swagiaal@redhat.com>
Date:   Thu Dec 2 15:57:11 2010 -0500

    gdbpy_selected_thread: Added check for pid == 0.
    
    2010-12-02  Sami Wagiaalla  <swagiaal@redhat.com>
    
    	* python/py-infthread.c (gdbpy_selected_thread): Added check for
    	pid == 0.

commit 40575c1a1d675b785ba979dac3ef508fd2bb2fca
Author: Sami Wagiaalla <swagiaal@redhat.com>
Date:   Thu Dec 2 15:52:08 2010 -0500

    Add test case.
    
    Converted sample scripts provided by Oguz to a test case.
    
    2010-12-02  Sami Wagiaalla  <swagiaal@redhat.com>
    
    	* gdb.python/py-events.exp: New test.
    	* gdb.python/py-events.c: New test file.
    	* gdb.python/py-events.py: New test file.

-----------------------------------------------------------------------

Summary of changes:
 gdb/python/py-infthread.c              |   10 ++++-
 gdb/testsuite/gdb.python/py-events.c   |   31 +++++++++++++++
 gdb/testsuite/gdb.python/py-events.exp |   67 ++++++++++++++++++++++++++++++++
 gdb/testsuite/gdb.python/py-events.py  |   51 ++++++++++++++++++++++++
 4 files changed, 157 insertions(+), 2 deletions(-)
 create mode 100644 gdb/testsuite/gdb.python/py-events.c
 create mode 100644 gdb/testsuite/gdb.python/py-events.exp
 create mode 100644 gdb/testsuite/gdb.python/py-events.py

First 500 lines of diff:
diff --git a/gdb/python/py-infthread.c b/gdb/python/py-infthread.c
index 6ac6f1f..69b4a01 100644
--- a/gdb/python/py-infthread.c
+++ b/gdb/python/py-infthread.c
@@ -240,11 +240,19 @@ thpy_is_exited (PyObject *self, PyObject *args)
 
 /* Implementation of gdb.selected_thread () -> gdb.InferiorThread.
    Returns the selected thread object.  */
+
 PyObject *
 gdbpy_selected_thread (PyObject *self, PyObject *args)
 {
   PyObject *thread_obj;
 
+  if (inferior_ptid.pid == 0)
+    {
+      PyErr_SetString (PyExc_RuntimeError,
+                       _("No thread is currently selected."));
+      return NULL;
+    }
+
   thread_obj = (PyObject *) find_thread_object (inferior_ptid);
   if (thread_obj)
     {
@@ -255,8 +263,6 @@ gdbpy_selected_thread (PyObject *self, PyObject *args)
   Py_RETURN_NONE;
 }
 
-
-
 void
 gdbpy_initialize_thread (void)
 {
diff --git a/gdb/testsuite/gdb.python/py-events.c b/gdb/testsuite/gdb.python/py-events.c
new file mode 100644
index 0000000..a2a1d3a
--- /dev/null
+++ b/gdb/testsuite/gdb.python/py-events.c
@@ -0,0 +1,31 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2010 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/>.
+*/
+
+int second(){
+  int *bad;
+  *bad = 1;
+  return 0;
+}
+
+int first(){
+  return second();
+}
+
+int main (){
+  return first();
+}
diff --git a/gdb/testsuite/gdb.python/py-events.exp b/gdb/testsuite/gdb.python/py-events.exp
new file mode 100644
index 0000000..12fa9c0
--- /dev/null
+++ b/gdb/testsuite/gdb.python/py-events.exp
@@ -0,0 +1,67 @@
+# Copyright (C) 2010 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/>.
+
+# This file is part of the GDB testsuite.  It tests Python-based
+# pretty-printing for the CLI.
+
+# Skip all tests if Python scripting is not enabled.
+
+if $tracelevel then {
+    strace $tracelevel
+}
+
+load_lib gdb-python.exp
+
+set testfile "py-events"
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+set pyfile ${srcdir}/${subdir}/${testfile}.py
+
+if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
+    return -1
+}
+
+if { [skip_python_tests] } { continue }
+
+# Ensure sys.path, et.al. are initialized properly.
+gdb_check_python_config
+
+gdb_test_no_output "python execfile ('${pyfile}')" ""
+
+if ![runto_main ] then {
+    fail "Can't run to main"
+    return -1
+}
+
+gdb_test "Test_Events" "Event testers registered."
+
+gdb_breakpoint "first"
+
+# Test continue event and breakpoint stop event
+gdb_test "continue" ".*event type: continue.*
+.*event type: stop.*
+.*stop reason: breakpoint.*
+.*breakpoint number: 2.*"
+
+#test signal event.
+gdb_test "continue" ".*event type: continue.*
+.*event type: stop.*
+.*stop reason: signal.*
+.*stop signal: SIGSEGV.*"
+
+#test exited event.
+gdb_test "continue" ".*event type: continue.*
+.*event type: exit.*
+.*exit code: .*"
diff --git a/gdb/testsuite/gdb.python/py-events.py b/gdb/testsuite/gdb.python/py-events.py
new file mode 100644
index 0000000..0800700
--- /dev/null
+++ b/gdb/testsuite/gdb.python/py-events.py
@@ -0,0 +1,51 @@
+# Copyright (C) 2010 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/>.
+
+# This file is part of the GDB testsuite.  It tests python pretty
+# printers.
+import gdb
+
+def signal_stop_handler (event):
+    print "event type: %s" % (event.event_type)
+    print "stop reason: %s" % (event.stop_reason)
+    print "stop signal: %s" % (event.stop_signal)
+
+def breakpoint_stop_handler (event):
+    print "event type: %s" % (event.event_type)
+    print "stop reason: %s" % (event.stop_reason)
+    print "breakpoint number: %s" % (event.breakpoint.number)
+
+def exit_handler (event):
+    print "event type: %s" % (event.event_type)
+    print "exit code: %d" % (event.exit_code)
+
+def continue_handler (event):
+    print "event type: %s" % (event.event_type)
+
+class test_events (gdb.Command):
+    """Test events."""
+
+    def __init__ (self):
+        gdb.Command.__init__ (self, "test_events", gdb.COMMAND_STACK)
+
+    def invoke (self, arg, from_tty):
+        gdb.selected_thread().signal_stop_event.connect (signal_stop_handler)
+        gdb.selected_thread().breakpoint_stop_event.connect (breakpoint_stop_handler)
+        gdb.selected_thread().exited_event.connect (exit_handler)
+        gdb.selected_thread().continue_event.connect (continue_handler)
+
+        print "Event testers registered."
+
+test_events ()


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