Add ability to add attributes to gdb.Objfile and gdb.Progspace objects.

gdb/ChangeLog:

	* NEWS: Mention ability add attributes to gdb.Objfile and
	gdb.Progspace objects.
	* python/py-objfile.c (objfile_object): New member dict.
	(objfpy_dealloc): Py_XDECREF dict.
	(objfpy_initialize): Initialize dict.
	(objfile_getset): Add __dict__.
	(objfile_object_type): Set tp_dictoffset member.
	* python/py-progspace.c (progspace_object): New member dict.
	(pspy_dealloc): Py_XDECREF dict.
	(pspy_initialize): Initialize dict.
	(pspace_getset): Add __dict__.
	(pspace_object_type): Set tp_dictoffset member.

gdb/doc/ChangeLog:

	* python.texi (Progspaces In Python): Document ability to add
	random attributes to gdb.Progspace objects.
	(Objfiles In Python): Document ability to add random attributes to
	gdb.objfile objects.

gdb/testsuite/ChangeLog:

	* gdb.python/py-objfile.exp: Add tests for setting random attributes
	in objfiles.
	* gdb.python/py-progspace.exp: Add tests for setting random attributes
	in progspaces.

2 files changed, 18 insertions, 2 deletions

diff --git a/gdb/python/py-objfile.c b/gdb/python/py-objfile.c
index e868223..c99de87 100644
--- a/gdb/python/py-objfile.c
+++ b/gdb/python/py-objfile.c
@@ -30,6 +30,10 @@ typedef struct
   /* The corresponding objfile.  */
   struct objfile *objfile;
 
+  /* Dictionary holding user-added attributes.
+     This is the __dict__ attribute of the object.  */
+  PyObject *dict;
+
   /* The pretty-printer list of functions.  */
   PyObject *printers;
 
@@ -85,6 +89,7 @@ objfpy_dealloc (PyObject *o)
 {
   objfile_object *self = (objfile_object *) o;
 
+  Py_XDECREF (self->dict);
   Py_XDECREF (self->printers);
   Py_XDECREF (self->frame_filters);
   Py_XDECREF (self->type_printers);
@@ -99,6 +104,7 @@ static int
 objfpy_initialize (objfile_object *self)
 {
   self->objfile = NULL;
+  self->dict = NULL;
 
   self->printers = PyList_New (0);
   if (self->printers == NULL)
@@ -354,6 +360,8 @@ Return true if this object file is valid, false if not." },
 
 static PyGetSetDef objfile_getset[] =
 {
+  { "__dict__", gdb_py_generic_dict, NULL,
+    "The __dict__ for this objfile.", &objfile_object_type },
   { "filename", objfpy_get_filename, NULL,
     "The objfile's filename, or None.", NULL },
   { "progspace", objfpy_get_progspace, NULL,
@@ -405,7 +413,7 @@ static PyTypeObject objfile_object_type =
   0,				  /* tp_dict */
   0,				  /* tp_descr_get */
   0,				  /* tp_descr_set */
-  0,				  /* tp_dictoffset */
+  offsetof (objfile_object, dict), /* tp_dictoffset */
   0,				  /* tp_init */
   0,				  /* tp_alloc */
   objfpy_new,			  /* tp_new */
diff --git a/gdb/python/py-progspace.c b/gdb/python/py-progspace.c
index 4280032..96339b1 100644
--- a/gdb/python/py-progspace.c
+++ b/gdb/python/py-progspace.c
@@ -32,6 +32,10 @@ typedef struct
   /* The corresponding pspace.  */
   struct program_space *pspace;
 
+  /* Dictionary holding user-added attributes.
+     This is the __dict__ attribute of the object.  */
+  PyObject *dict;
+
   /* The pretty-printer list of functions.  */
   PyObject *printers;
 
@@ -75,6 +79,7 @@ pspy_dealloc (PyObject *self)
 {
   pspace_object *ps_self = (pspace_object *) self;
 
+  Py_XDECREF (ps_self->dict);
   Py_XDECREF (ps_self->printers);
   Py_XDECREF (ps_self->frame_filters);
   Py_XDECREF (ps_self->type_printers);
@@ -89,6 +94,7 @@ static int
 pspy_initialize (pspace_object *self)
 {
   self->pspace = NULL;
+  self->dict = NULL;
 
   self->printers = PyList_New (0);
   if (self->printers == NULL)
@@ -331,6 +337,8 @@ gdbpy_initialize_pspace (void)
 
 static PyGetSetDef pspace_getset[] =
 {
+  { "__dict__", gdb_py_generic_dict, NULL,
+    "The __dict__ for this progspace.", &pspace_object_type },
   { "filename", pspy_get_filename, NULL,
     "The progspace's main filename, or None.", NULL },
   { "pretty_printers", pspy_get_printers, pspy_set_printers,
@@ -380,7 +388,7 @@ static PyTypeObject pspace_object_type =
   0,				  /* tp_dict */
   0,				  /* tp_descr_get */
   0,				  /* tp_descr_set */
-  0,				  /* tp_dictoffset */
+  offsetof (pspace_object, dict), /* tp_dictoffset */
   0,				  /* tp_init */
   0,				  /* tp_alloc */
   pspy_new,			  /* tp_new */