gdb
2009-04-01 Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> Phil Muldoon <pmuldoon@redhat.com> * python/python.c: Include objfiles.h, observer.h. (gdbpy_auto_load): New global. (gdbpy_current_objfile): Likewise. (GDBPY_AUTO_FILENAME): New define. (gdbpy_new_objfile): New function. (gdbpy_get_current_objfile): Likewise. (gdbpy_objfiles): Likewise. (_initialize_python): Add "maint set auto-load". Call gdbpy_initialize_objfile. Attach objfile observer. (GdbMethods): New methods current_objfile, objfiles. * python/python-objfile.c: New file. * python/python-internal.h (objfile_to_objfile_object): Declare. (objfpy_get_printers): Likewise. (gdbpy_initialize_objfile): Likewise. * Makefile.in (SUBDIR_PYTHON_OBS): Add python-objfile.o. (SUBDIR_PYTHON_SRCS): Add python-objfile.c. (python-objfile.o): New target. gdb/doc 2009-04-01 Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> * gdb.texinfo (Python API): Update. (Auto-loading): New node. (Objfiles In Python): New node. gdb/testsuite 2009-04-06 Tom Tromey <tromey@redhat.com> * gdb.python/python.exp (gdb_py_test_multiple): Add two objfile tests. * gdb.python/python-value.exp (py_objfile_tests): New proc. Call it.
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Tom Tromey
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229
gdb/python/python-objfile.c
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gdb/python/python-objfile.c
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/* Python interface to objfiles.
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Copyright (C) 2008, 2009 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "python-internal.h"
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#include "charset.h"
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#include "objfiles.h"
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typedef struct
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{
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PyObject_HEAD
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/* The corresponding objfile. */
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struct objfile *objfile;
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/* The pretty-printer list of functions. */
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PyObject *printers;
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} objfile_object;
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static PyTypeObject objfile_object_type;
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static const struct objfile_data *objfpy_objfile_data_key;
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/* An Objfile method which returns the objfile's file name, or None. */
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static PyObject *
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objfpy_get_filename (PyObject *self, void *closure)
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{
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objfile_object *obj = (objfile_object *) self;
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if (obj->objfile && obj->objfile->name)
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return PyString_Decode (obj->objfile->name, strlen (obj->objfile->name),
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host_charset (), NULL);
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Py_RETURN_NONE;
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}
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static void
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objfpy_dealloc (PyObject *o)
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{
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objfile_object *self = (objfile_object *) o;
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Py_XDECREF (self->printers);
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self->ob_type->tp_free ((PyObject *) self);
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}
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static PyObject *
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objfpy_new (PyTypeObject *type, PyObject *args, PyObject *keywords)
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{
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objfile_object *self = (objfile_object *) type->tp_alloc (type, 0);
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if (self)
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{
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self->objfile = NULL;
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self->printers = PyList_New (0);
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if (!self->printers)
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{
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Py_DECREF (self);
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return NULL;
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}
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}
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return (PyObject *) self;
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}
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PyObject *
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objfpy_get_printers (PyObject *o, void *ignore)
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{
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objfile_object *self = (objfile_object *) o;
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Py_INCREF (self->printers);
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return self->printers;
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}
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static int
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objfpy_set_printers (PyObject *o, PyObject *value, void *ignore)
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{
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PyObject *tmp;
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objfile_object *self = (objfile_object *) o;
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if (! value)
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{
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PyErr_SetString (PyExc_TypeError,
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"cannot delete the pretty_printers attribute");
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return -1;
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}
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if (! PyList_Check (value))
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{
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PyErr_SetString (PyExc_TypeError,
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"the pretty_printers attribute must be a list");
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return -1;
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}
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/* Take care in case the LHS and RHS are related somehow. */
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tmp = self->printers;
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Py_INCREF (value);
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self->printers = value;
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Py_XDECREF (tmp);
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return 0;
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}
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/* Clear the OBJFILE pointer in an Objfile object and remove the
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reference. */
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static void
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clean_up_objfile (struct objfile *objfile, void *datum)
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{
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PyGILState_STATE state;
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objfile_object *object = datum;
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state = PyGILState_Ensure ();
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object->objfile = NULL;
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Py_DECREF ((PyObject *) object);
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PyGILState_Release (state);
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}
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/* Return a borrowed reference to the Python object of type Objfile
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representing OBJFILE. If the object has already been created,
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return it. Otherwise, create it. Return NULL and set the Python
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error on failure. */
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PyObject *
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objfile_to_objfile_object (struct objfile *objfile)
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{
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objfile_object *object;
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object = objfile_data (objfile, objfpy_objfile_data_key);
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if (!object)
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{
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object = PyObject_New (objfile_object, &objfile_object_type);
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if (object)
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{
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PyObject *dict;
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object->objfile = objfile;
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object->printers = PyList_New (0);
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if (!object->printers)
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{
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Py_DECREF (object);
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return NULL;
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}
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set_objfile_data (objfile, objfpy_objfile_data_key, object);
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}
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}
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return (PyObject *) object;
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}
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void
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gdbpy_initialize_objfile (void)
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{
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objfpy_objfile_data_key
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= register_objfile_data_with_cleanup (clean_up_objfile);
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if (PyType_Ready (&objfile_object_type) < 0)
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return;
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Py_INCREF (&objfile_object_type);
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PyModule_AddObject (gdb_module, "Objfile", (PyObject *) &objfile_object_type);
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}
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static PyGetSetDef objfile_getset[] =
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{
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{ "filename", objfpy_get_filename, NULL,
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"The objfile's filename, or None.", NULL },
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{ "pretty_printers", objfpy_get_printers, objfpy_set_printers,
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"Pretty printers.", NULL },
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{ NULL }
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};
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static PyTypeObject objfile_object_type =
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{
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PyObject_HEAD_INIT (NULL)
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0, /*ob_size*/
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"gdb.Objfile", /*tp_name*/
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sizeof (objfile_object), /*tp_basicsize*/
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0, /*tp_itemsize*/
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objfpy_dealloc, /*tp_dealloc*/
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0, /*tp_print*/
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0, /*tp_getattr*/
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0, /*tp_setattr*/
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0, /*tp_compare*/
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0, /*tp_repr*/
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0, /*tp_as_number*/
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0, /*tp_as_sequence*/
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0, /*tp_as_mapping*/
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0, /*tp_hash */
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0, /*tp_call*/
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0, /*tp_str*/
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0, /*tp_getattro*/
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0, /*tp_setattro*/
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0, /*tp_as_buffer*/
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Py_TPFLAGS_DEFAULT, /*tp_flags*/
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"GDB objfile object", /* tp_doc */
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0, /* tp_traverse */
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0, /* tp_clear */
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0, /* tp_richcompare */
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0, /* tp_weaklistoffset */
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0, /* tp_iter */
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0, /* tp_iternext */
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0, /* tp_methods */
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0, /* tp_members */
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objfile_getset, /* tp_getset */
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0, /* tp_base */
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0, /* tp_dict */
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0, /* tp_descr_get */
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0, /* tp_descr_set */
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0, /* tp_dictoffset */
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0, /* tp_init */
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0, /* tp_alloc */
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objfpy_new, /* tp_new */
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};
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