diff options
Diffstat (limited to 'gdb/python/python-objfile.c')
| -rw-r--r-- | gdb/python/python-objfile.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/gdb/python/python-objfile.c b/gdb/python/python-objfile.c new file mode 100644 index 0000000..b70a006 --- /dev/null +++ b/gdb/python/python-objfile.c @@ -0,0 +1,229 @@ +/* Python interface to objfiles. + + Copyright (C) 2008, 2009 Free Software Foundation, Inc. + + This file is part of GDB. + + 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/>. */ + +#include "defs.h" +#include "python-internal.h" +#include "charset.h" +#include "objfiles.h" + +typedef struct +{ + PyObject_HEAD + + /* The corresponding objfile. */ + struct objfile *objfile; + + /* The pretty-printer list of functions. */ + PyObject *printers; +} objfile_object; + +static PyTypeObject objfile_object_type; + +static const struct objfile_data *objfpy_objfile_data_key; + + + +/* An Objfile method which returns the objfile's file name, or None. */ +static PyObject * +objfpy_get_filename (PyObject *self, void *closure) +{ + objfile_object *obj = (objfile_object *) self; + if (obj->objfile && obj->objfile->name) + return PyString_Decode (obj->objfile->name, strlen (obj->objfile->name), + host_charset (), NULL); + Py_RETURN_NONE; +} + +static void +objfpy_dealloc (PyObject *o) +{ + objfile_object *self = (objfile_object *) o; + Py_XDECREF (self->printers); + self->ob_type->tp_free ((PyObject *) self); +} + +static PyObject * +objfpy_new (PyTypeObject *type, PyObject *args, PyObject *keywords) +{ + objfile_object *self = (objfile_object *) type->tp_alloc (type, 0); + if (self) + { + self->objfile = NULL; + + self->printers = PyList_New (0); + if (!self->printers) + { + Py_DECREF (self); + return NULL; + } + } + return (PyObject *) self; +} + +PyObject * +objfpy_get_printers (PyObject *o, void *ignore) +{ + objfile_object *self = (objfile_object *) o; + Py_INCREF (self->printers); + return self->printers; +} + +static int +objfpy_set_printers (PyObject *o, PyObject *value, void *ignore) +{ + PyObject *tmp; + objfile_object *self = (objfile_object *) o; + if (! value) + { + PyErr_SetString (PyExc_TypeError, + "cannot delete the pretty_printers attribute"); + return -1; + } + + if (! PyList_Check (value)) + { + PyErr_SetString (PyExc_TypeError, + "the pretty_printers attribute must be a list"); + return -1; + } + + /* Take care in case the LHS and RHS are related somehow. */ + tmp = self->printers; + Py_INCREF (value); + self->printers = value; + Py_XDECREF (tmp); + + return 0; +} + + + +/* Clear the OBJFILE pointer in an Objfile object and remove the + reference. */ +static void +clean_up_objfile (struct objfile *objfile, void *datum) +{ + PyGILState_STATE state; + objfile_object *object = datum; + + state = PyGILState_Ensure (); + object->objfile = NULL; + Py_DECREF ((PyObject *) object); + PyGILState_Release (state); +} + +/* Return a borrowed reference to the Python object of type Objfile + representing OBJFILE. If the object has already been created, + return it. Otherwise, create it. Return NULL and set the Python + error on failure. */ +PyObject * +objfile_to_objfile_object (struct objfile *objfile) +{ + objfile_object *object; + + object = objfile_data (objfile, objfpy_objfile_data_key); + if (!object) + { + object = PyObject_New (objfile_object, &objfile_object_type); + if (object) + { + PyObject *dict; + + object->objfile = objfile; + + object->printers = PyList_New (0); + if (!object->printers) + { + Py_DECREF (object); + return NULL; + } + + set_objfile_data (objfile, objfpy_objfile_data_key, object); + } + } + + return (PyObject *) object; +} + +void +gdbpy_initialize_objfile (void) +{ + objfpy_objfile_data_key + = register_objfile_data_with_cleanup (clean_up_objfile); + + if (PyType_Ready (&objfile_object_type) < 0) + return; + + Py_INCREF (&objfile_object_type); + PyModule_AddObject (gdb_module, "Objfile", (PyObject *) &objfile_object_type); +} + + + +static PyGetSetDef objfile_getset[] = +{ + { "filename", objfpy_get_filename, NULL, + "The objfile's filename, or None.", NULL }, + { "pretty_printers", objfpy_get_printers, objfpy_set_printers, + "Pretty printers.", NULL }, + { NULL } +}; + +static PyTypeObject objfile_object_type = +{ + PyObject_HEAD_INIT (NULL) + 0, /*ob_size*/ + "gdb.Objfile", /*tp_name*/ + sizeof (objfile_object), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + objfpy_dealloc, /*tp_dealloc*/ + 0, /*tp_print*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_compare*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash */ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT, /*tp_flags*/ + "GDB objfile object", /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + 0, /* tp_methods */ + 0, /* tp_members */ + objfile_getset, /* tp_getset */ + 0, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + 0, /* tp_init */ + 0, /* tp_alloc */ + objfpy_new, /* tp_new */ +}; |