2010-06-28 Phil Muldoon <pmuldoon@redhat.com>

Tom Tromey  <tromey@redhat.com>
            Thiago Jung Bauermann  <bauerman@br.ibm.com>

	* value.c (pack_unsigned_long): New function.
	(value_from_ulongest): New function.
	* value.h (value_from_ulongest): Declare.
	* python/python.c (_initialize_python): Call
	gdbpy_initialize_thread and gdbpy_initialize_inferior.
	* python/python-internal.h: Define thread_object.
	(gdbpy_inferiors, gdbpy_selected_thread)
	(frame_info_to_frame_object, create_thread_object)
	(find_thread_object, find_inferior_object)
	(gdbpy_initialize_thread, gdbpy_initialize_inferiors)
	(gdbpy_is_value_object, get_addr_from_python): Declare.
	* python/py-value.c (builtin_type_upylong): Define.
	(convert_value_from_python): Add logic for ulongest.
	(gdbpy_is_value_object): New function.
	* python/py-utils.c (get_addr_from_python): New function.
	* python/py-frame.c (frame_info_to_frame_object): Return a PyObject.
	(gdbpy_selected_frame): Use PyObject over frame_info.
	* Makefile.in (SUBDIR_PYTHON_OBS): Add py-inferior and
	py-infthread.
	(SUBDIR_PYTHON_SRCS): Likewise.
	(py-inferior.o): New Rule.
	(py-infthread.o): New Rule.
	* python/py-inferior.c: New File.
	* python/py-infthread.c: New File.

2010-06-28  Phil Muldoon  <pmuldoon@redhat.com>
	    Tom Tromey  <tromey@redhat.com>
	    Thiago Jung Bauermann  <bauerman@br.ibm.com>

	* gdb.texinfo (Inferiors In Python): New node.
	* gdb.texinfo (Threads In Python): New node.

2010-06-28  Phil Muldoon  <pmuldoon@redhat.com>
            Tom Tromey  <tromey@redhat.com>
            Thiago Jung Bauermann  <bauerman@br.ibm.com>

	* gdb.python/py-inferior.c: New File.
	* gdb.python/py-infthread.c: New File.
	* gdb.python/py-inferior.exp: New File.
	* gdb.python/py-infthread.exp: New File.

gdb/python/py-utils.c

@@ -19,6 +19,7 @@
 
 #include "defs.h"
 #include "charset.h"
+#include "value.h"
 #include "python-internal.h"
 
 
@@ -272,3 +273,51 @@ gdbpy_exception_to_string (PyObject *ptype, PyObject *pvalue)
 
   return str;
 }
+
+/* Converts OBJ to a CORE_ADDR value.
+
+   Returns 1 on success or 0 on failure, with a Python exception set.  This
+   function can also throw GDB exceptions.
+*/
+
+int
+get_addr_from_python (PyObject *obj, CORE_ADDR *addr)
+{
+  if (gdbpy_is_value_object (obj))
+    *addr = value_as_address (value_object_to_value (obj));
+  else if (PyLong_Check (obj))
+    {
+      /* Assume CORE_ADDR corresponds to unsigned long.  */
+      *addr = PyLong_AsUnsignedLong (obj);
+      if (PyErr_Occurred () != NULL)
+	return 0;
+    }
+  else if (PyInt_Check (obj))
+    {
+      long val;
+
+      /* Assume CORE_ADDR corresponds to unsigned long.  */
+      val = PyInt_AsLong (obj);
+
+      if (val >= 0)
+	*addr = val;
+      else
+      {
+	/* If no error ocurred, VAL is indeed negative.  */
+	if (PyErr_Occurred () != NULL)
+	  return 0;
+
+	PyErr_SetString (PyExc_ValueError,
+			 _("Supplied address is negative."));
+	return 0;
+      }
+    }
+  else
+    {
+      PyErr_SetString (PyExc_TypeError,
+		       _("Invalid type for address."));
+      return 0;
+    }
+
+  return 1;
+}