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/* Python interface to instruction objects.
Copyright 2017-2023 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 "py-instruction.h"
/* Python type object for the abstract gdb.Instruction class. This class
contains getters for four elements: "pc" (int), "data" (buffer), "decode"
(str) and "size" (int) that must be overridden by sub classes. */
PyTypeObject py_insn_type = {
PyVarObject_HEAD_INIT (NULL, 0)
};
/* Python instruction object. */
struct py_insn_obj {
PyObject_HEAD
};
/* Getter function for gdb.Instruction attributes. */
static PyObject *
py_insn_getter (PyObject *self, void *closure)
{
return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
}
/* Instruction members. */
static gdb_PyGetSetDef py_insn_getset[] =
{
{ "pc", py_insn_getter, NULL, "instruction address", NULL},
{ "data", py_insn_getter, NULL, "instruction memory", NULL},
{ "decoded", py_insn_getter, NULL, "decoded instruction", NULL},
{ "size", py_insn_getter, NULL, "instruction size in bytes", NULL},
{NULL}
};
/* See py-instruction.h. */
PyTypeObject *
py_insn_get_insn_type ()
{
if (py_insn_type.tp_new == nullptr)
{
py_insn_type.tp_new = PyType_GenericNew;
py_insn_type.tp_flags = Py_TPFLAGS_DEFAULT;
py_insn_type.tp_basicsize = sizeof (py_insn_obj);
py_insn_type.tp_name = "gdb.Instruction";
py_insn_type.tp_doc = "GDB instruction object";
py_insn_type.tp_getset = py_insn_getset;
if (PyType_Ready (&py_insn_type) < 0)
{
/* Reset the tp_new field so any subsequent calls to this
function will retry to make the type ready. */
py_insn_type.tp_new = nullptr;
return nullptr;
}
}
return &py_insn_type;
}
/* Sets up the gdb.Instruction type. */
static int CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION
gdbpy_initialize_instruction (void)
{
if (py_insn_get_insn_type () == nullptr)
return -1;
return 0;
}
GDBPY_INITIALIZE_FILE (gdbpy_initialize_instruction);
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