/* Convenience functions implemented in Python.
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/* Convenience functions implemented in Python.
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Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
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Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
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This file is part of GDB.
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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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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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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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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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(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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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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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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "defs.h"
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#include "value.h"
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#include "value.h"
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#include "exceptions.h"
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#include "exceptions.h"
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#include "python-internal.h"
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#include "python-internal.h"
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#include "charset.h"
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#include "charset.h"
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#include "gdbcmd.h"
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#include "gdbcmd.h"
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#include "cli/cli-decode.h"
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#include "cli/cli-decode.h"
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#include "completer.h"
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#include "completer.h"
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#include "expression.h"
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#include "expression.h"
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#include "language.h"
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#include "language.h"
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static PyTypeObject fnpy_object_type;
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static PyTypeObject fnpy_object_type;
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static PyObject *
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static PyObject *
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convert_values_to_python (int argc, struct value **argv)
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convert_values_to_python (int argc, struct value **argv)
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{
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{
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int i;
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int i;
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PyObject *result = PyTuple_New (argc);
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PyObject *result = PyTuple_New (argc);
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for (i = 0; i < argc; ++i)
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for (i = 0; i < argc; ++i)
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{
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{
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PyObject *elt = value_to_value_object (argv[i]);
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PyObject *elt = value_to_value_object (argv[i]);
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if (! elt)
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if (! elt)
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{
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{
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Py_DECREF (result);
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Py_DECREF (result);
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error (_("Could not convert value to Python object."));
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error (_("Could not convert value to Python object."));
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}
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}
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PyTuple_SetItem (result, i, elt);
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PyTuple_SetItem (result, i, elt);
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}
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}
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return result;
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return result;
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}
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}
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/* Call a Python function object's invoke method. */
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/* Call a Python function object's invoke method. */
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static struct value *
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static struct value *
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fnpy_call (struct gdbarch *gdbarch, const struct language_defn *language,
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fnpy_call (struct gdbarch *gdbarch, const struct language_defn *language,
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void *cookie, int argc, struct value **argv)
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void *cookie, int argc, struct value **argv)
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{
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{
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int i;
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int i;
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struct value *value = NULL;
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struct value *value = NULL;
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PyObject *result, *callable, *args;
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PyObject *result, *callable, *args;
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struct cleanup *cleanup;
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struct cleanup *cleanup;
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cleanup = ensure_python_env (gdbarch, language);
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cleanup = ensure_python_env (gdbarch, language);
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args = convert_values_to_python (argc, argv);
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args = convert_values_to_python (argc, argv);
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callable = PyObject_GetAttrString ((PyObject *) cookie, "invoke");
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callable = PyObject_GetAttrString ((PyObject *) cookie, "invoke");
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if (! callable)
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if (! callable)
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{
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{
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Py_DECREF (args);
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Py_DECREF (args);
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error (_("No method named 'invoke' in object."));
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error (_("No method named 'invoke' in object."));
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}
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}
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result = PyObject_Call (callable, args, NULL);
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result = PyObject_Call (callable, args, NULL);
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Py_DECREF (callable);
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Py_DECREF (callable);
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Py_DECREF (args);
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Py_DECREF (args);
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if (!result)
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if (!result)
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{
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{
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gdbpy_print_stack ();
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gdbpy_print_stack ();
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error (_("Error while executing Python code."));
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error (_("Error while executing Python code."));
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}
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}
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value = convert_value_from_python (result);
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value = convert_value_from_python (result);
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if (value == NULL)
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if (value == NULL)
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{
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{
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Py_DECREF (result);
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Py_DECREF (result);
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gdbpy_print_stack ();
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gdbpy_print_stack ();
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error (_("Error while executing Python code."));
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error (_("Error while executing Python code."));
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}
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}
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Py_DECREF (result);
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Py_DECREF (result);
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do_cleanups (cleanup);
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do_cleanups (cleanup);
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return value;
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return value;
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}
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}
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/* Initializer for a Function object. It takes one argument, the name
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/* Initializer for a Function object. It takes one argument, the name
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of the function. */
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of the function. */
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static int
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static int
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fnpy_init (PyObject *self, PyObject *args, PyObject *kwds)
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fnpy_init (PyObject *self, PyObject *args, PyObject *kwds)
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{
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{
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char *name, *docstring = NULL;
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char *name, *docstring = NULL;
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if (! PyArg_ParseTuple (args, "s", &name))
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if (! PyArg_ParseTuple (args, "s", &name))
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return -1;
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return -1;
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Py_INCREF (self);
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Py_INCREF (self);
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if (PyObject_HasAttrString (self, "__doc__"))
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if (PyObject_HasAttrString (self, "__doc__"))
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{
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{
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PyObject *ds_obj = PyObject_GetAttrString (self, "__doc__");
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PyObject *ds_obj = PyObject_GetAttrString (self, "__doc__");
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if (ds_obj && gdbpy_is_string (ds_obj))
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if (ds_obj && gdbpy_is_string (ds_obj))
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docstring = python_string_to_host_string (ds_obj);
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docstring = python_string_to_host_string (ds_obj);
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}
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}
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if (! docstring)
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if (! docstring)
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docstring = xstrdup (_("This function is not documented."));
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docstring = xstrdup (_("This function is not documented."));
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add_internal_function (name, docstring, fnpy_call, self);
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add_internal_function (name, docstring, fnpy_call, self);
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return 0;
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return 0;
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}
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}
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/* Initialize internal function support. */
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/* Initialize internal function support. */
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void
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void
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gdbpy_initialize_functions (void)
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gdbpy_initialize_functions (void)
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{
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{
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if (PyType_Ready (&fnpy_object_type) < 0)
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if (PyType_Ready (&fnpy_object_type) < 0)
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return;
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return;
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Py_INCREF (&fnpy_object_type);
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Py_INCREF (&fnpy_object_type);
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PyModule_AddObject (gdb_module, "Function", (PyObject *) &fnpy_object_type);
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PyModule_AddObject (gdb_module, "Function", (PyObject *) &fnpy_object_type);
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}
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}
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static PyTypeObject fnpy_object_type =
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static PyTypeObject fnpy_object_type =
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{
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{
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PyObject_HEAD_INIT (NULL)
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PyObject_HEAD_INIT (NULL)
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0, /*ob_size*/
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0, /*ob_size*/
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"gdb.Function", /*tp_name*/
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"gdb.Function", /*tp_name*/
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sizeof (PyObject), /*tp_basicsize*/
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sizeof (PyObject), /*tp_basicsize*/
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0, /*tp_itemsize*/
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0, /*tp_itemsize*/
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0, /*tp_dealloc*/
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0, /*tp_dealloc*/
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0, /*tp_print*/
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0, /*tp_print*/
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0, /*tp_getattr*/
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0, /*tp_getattr*/
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0, /*tp_setattr*/
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0, /*tp_setattr*/
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0, /*tp_compare*/
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0, /*tp_compare*/
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0, /*tp_repr*/
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0, /*tp_repr*/
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0, /*tp_as_number*/
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0, /*tp_as_number*/
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0, /*tp_as_sequence*/
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0, /*tp_as_sequence*/
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0, /*tp_as_mapping*/
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0, /*tp_as_mapping*/
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0, /*tp_hash */
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0, /*tp_hash */
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0, /*tp_call*/
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0, /*tp_call*/
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0, /*tp_str*/
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0, /*tp_str*/
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0, /*tp_getattro*/
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0, /*tp_getattro*/
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0, /*tp_setattro*/
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0, /*tp_setattro*/
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0, /*tp_as_buffer*/
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0, /*tp_as_buffer*/
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Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
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Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
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"GDB function object", /* tp_doc */
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"GDB function object", /* tp_doc */
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0, /* tp_traverse */
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0, /* tp_traverse */
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0, /* tp_clear */
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0, /* tp_clear */
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0, /* tp_richcompare */
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0, /* tp_richcompare */
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0, /* tp_weaklistoffset */
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0, /* tp_weaklistoffset */
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0, /* tp_iter */
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0, /* tp_iter */
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0, /* tp_iternext */
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0, /* tp_iternext */
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0, /* tp_methods */
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0, /* tp_methods */
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0, /* tp_members */
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0, /* tp_members */
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0, /* tp_getset */
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0, /* tp_getset */
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0, /* tp_base */
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0, /* tp_base */
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0, /* tp_dict */
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0, /* tp_dict */
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0, /* tp_descr_get */
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0, /* tp_descr_get */
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0, /* tp_descr_set */
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0, /* tp_descr_set */
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0, /* tp_dictoffset */
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0, /* tp_dictoffset */
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fnpy_init, /* tp_init */
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fnpy_init, /* tp_init */
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0, /* tp_alloc */
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0, /* tp_alloc */
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PyType_GenericNew /* tp_new */
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PyType_GenericNew /* tp_new */
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};
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};
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