1 /* Python interface to program spaces.
3 Copyright (C) 2010, 2011 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"
26 #include "arch-utils.h"
32 /* The corresponding pspace. */
33 struct program_space
*pspace
;
35 /* The pretty-printer list of functions. */
39 static PyTypeObject pspace_object_type
;
41 static const struct program_space_data
*pspy_pspace_data_key
;
45 /* An Objfile method which returns the objfile's file name, or None. */
48 pspy_get_filename (PyObject
*self
, void *closure
)
50 pspace_object
*obj
= (pspace_object
*) self
;
54 struct objfile
*objfile
= obj
->pspace
->symfile_object_file
;
57 return PyString_Decode (objfile
->name
, strlen (objfile
->name
),
58 host_charset (), NULL
);
64 pspy_dealloc (PyObject
*self
)
66 pspace_object
*ps_self
= (pspace_object
*) self
;
68 Py_XDECREF (ps_self
->printers
);
69 self
->ob_type
->tp_free (self
);
73 pspy_new (PyTypeObject
*type
, PyObject
*args
, PyObject
*keywords
)
75 pspace_object
*self
= (pspace_object
*) type
->tp_alloc (type
, 0);
81 self
->printers
= PyList_New (0);
88 return (PyObject
*) self
;
92 pspy_get_printers (PyObject
*o
, void *ignore
)
94 pspace_object
*self
= (pspace_object
*) o
;
96 Py_INCREF (self
->printers
);
97 return self
->printers
;
101 pspy_set_printers (PyObject
*o
, PyObject
*value
, void *ignore
)
104 pspace_object
*self
= (pspace_object
*) o
;
108 PyErr_SetString (PyExc_TypeError
,
109 "cannot delete the pretty_printers attribute");
113 if (! PyList_Check (value
))
115 PyErr_SetString (PyExc_TypeError
,
116 "the pretty_printers attribute must be a list");
120 /* Take care in case the LHS and RHS are related somehow. */
121 tmp
= self
->printers
;
123 self
->printers
= value
;
131 /* Clear the PSPACE pointer in a Pspace object and remove the reference. */
134 py_free_pspace (struct program_space
*pspace
, void *datum
)
136 struct cleanup
*cleanup
;
137 pspace_object
*object
= datum
;
138 struct gdbarch
*arch
= get_current_arch ();
140 cleanup
= ensure_python_env (arch
, current_language
);
141 object
->pspace
= NULL
;
142 Py_DECREF ((PyObject
*) object
);
143 do_cleanups (cleanup
);
146 /* Return a borrowed reference to the Python object of type Pspace
147 representing PSPACE. If the object has already been created,
148 return it. Otherwise, create it. Return NULL and set the Python
152 pspace_to_pspace_object (struct program_space
*pspace
)
154 pspace_object
*object
;
156 object
= program_space_data (pspace
, pspy_pspace_data_key
);
159 object
= PyObject_New (pspace_object
, &pspace_object_type
);
162 object
->pspace
= pspace
;
164 object
->printers
= PyList_New (0);
165 if (!object
->printers
)
171 set_program_space_data (pspace
, pspy_pspace_data_key
, object
);
175 return (PyObject
*) object
;
179 gdbpy_initialize_pspace (void)
182 = register_program_space_data_with_cleanup (py_free_pspace
);
184 if (PyType_Ready (&pspace_object_type
) < 0)
187 Py_INCREF (&pspace_object_type
);
188 PyModule_AddObject (gdb_module
, "Progspace",
189 (PyObject
*) &pspace_object_type
);
194 static PyGetSetDef pspace_getset
[] =
196 { "filename", pspy_get_filename
, NULL
,
197 "The progspace's main filename, or None.", NULL
},
198 { "pretty_printers", pspy_get_printers
, pspy_set_printers
,
199 "Pretty printers.", NULL
},
203 static PyTypeObject pspace_object_type
=
205 PyObject_HEAD_INIT (NULL
)
207 "gdb.Progspace", /*tp_name*/
208 sizeof (pspace_object
), /*tp_basicsize*/
210 pspy_dealloc
, /*tp_dealloc*/
217 0, /*tp_as_sequence*/
225 Py_TPFLAGS_DEFAULT
, /*tp_flags*/
226 "GDB progspace object", /* tp_doc */
229 0, /* tp_richcompare */
230 0, /* tp_weaklistoffset */
235 pspace_getset
, /* tp_getset */
238 0, /* tp_descr_get */
239 0, /* tp_descr_set */
240 0, /* tp_dictoffset */
243 pspy_new
, /* tp_new */