1 /* Python interface to program spaces.
3 Copyright (C) 2010 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "python-internal.h"
23 #include "progspace.h"
31 /* The corresponding pspace. */
32 struct program_space
*pspace
;
34 /* The pretty-printer list of functions. */
38 static PyTypeObject pspace_object_type
;
40 static const struct program_space_data
*pspy_pspace_data_key
;
44 /* An Objfile method which returns the objfile's file name, or None. */
47 pspy_get_filename (PyObject
*self
, void *closure
)
49 pspace_object
*obj
= (pspace_object
*) self
;
52 struct objfile
*objfile
= obj
->pspace
->symfile_object_file
;
53 if (objfile
&& objfile
->name
)
54 return PyString_Decode (objfile
->name
, strlen (objfile
->name
),
55 host_charset (), NULL
);
61 pspy_dealloc (PyObject
*self
)
63 pspace_object
*ps_self
= (pspace_object
*) self
;
64 Py_XDECREF (ps_self
->printers
);
65 self
->ob_type
->tp_free (self
);
69 pspy_new (PyTypeObject
*type
, PyObject
*args
, PyObject
*keywords
)
71 pspace_object
*self
= (pspace_object
*) type
->tp_alloc (type
, 0);
76 self
->printers
= PyList_New (0);
83 return (PyObject
*) self
;
87 pspy_get_printers (PyObject
*o
, void *ignore
)
89 pspace_object
*self
= (pspace_object
*) o
;
90 Py_INCREF (self
->printers
);
91 return self
->printers
;
95 pspy_set_printers (PyObject
*o
, PyObject
*value
, void *ignore
)
98 pspace_object
*self
= (pspace_object
*) o
;
101 PyErr_SetString (PyExc_TypeError
,
102 "cannot delete the pretty_printers attribute");
106 if (! PyList_Check (value
))
108 PyErr_SetString (PyExc_TypeError
,
109 "the pretty_printers attribute must be a list");
113 /* Take care in case the LHS and RHS are related somehow. */
114 tmp
= self
->printers
;
116 self
->printers
= value
;
124 /* Clear the PSPACE pointer in a Pspace object and remove the reference. */
127 py_free_pspace (struct program_space
*pspace
, void *datum
)
129 struct cleanup
*cleanup
;
130 pspace_object
*object
= datum
;
131 /* FIXME: What's the right way to get a program space's arch?
132 There may be multiple. */
133 struct gdbarch
*arch
= get_objfile_arch (pspace
->symfile_object_file
);
135 cleanup
= ensure_python_env (arch
, current_language
);
136 object
->pspace
= NULL
;
137 Py_DECREF ((PyObject
*) object
);
138 do_cleanups (cleanup
);
141 /* Return a borrowed reference to the Python object of type Pspace
142 representing PSPACE. If the object has already been created,
143 return it. Otherwise, create it. Return NULL and set the Python
147 pspace_to_pspace_object (struct program_space
*pspace
)
149 pspace_object
*object
;
151 object
= program_space_data (pspace
, pspy_pspace_data_key
);
154 object
= PyObject_New (pspace_object
, &pspace_object_type
);
157 object
->pspace
= pspace
;
159 object
->printers
= PyList_New (0);
160 if (!object
->printers
)
166 set_program_space_data (pspace
, pspy_pspace_data_key
, object
);
170 return (PyObject
*) object
;
174 gdbpy_initialize_pspace (void)
177 = register_program_space_data_with_cleanup (py_free_pspace
);
179 if (PyType_Ready (&pspace_object_type
) < 0)
182 Py_INCREF (&pspace_object_type
);
183 PyModule_AddObject (gdb_module
, "Progspace", (PyObject
*) &pspace_object_type
);
188 static PyGetSetDef pspace_getset
[] =
190 { "filename", pspy_get_filename
, NULL
,
191 "The progspace's main filename, or None.", NULL
},
192 { "pretty_printers", pspy_get_printers
, pspy_set_printers
,
193 "Pretty printers.", NULL
},
197 static PyTypeObject pspace_object_type
=
199 PyObject_HEAD_INIT (NULL
)
201 "gdb.Progspace", /*tp_name*/
202 sizeof (pspace_object
), /*tp_basicsize*/
204 pspy_dealloc
, /*tp_dealloc*/
211 0, /*tp_as_sequence*/
219 Py_TPFLAGS_DEFAULT
, /*tp_flags*/
220 "GDB progspace object", /* tp_doc */
223 0, /* tp_richcompare */
224 0, /* tp_weaklistoffset */
229 pspace_getset
, /* tp_getset */
232 0, /* tp_descr_get */
233 0, /* tp_descr_set */
234 0, /* tp_dictoffset */
237 pspy_new
, /* tp_new */