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https://github.com/espressif/binutils-gdb.git
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Add a new class gdb.Architecture which exposes GDB's
internal representation of architecture via GDB Python API. * Makefile.in: Add entries corresponding to the new file python/py-arch.c. * NEWS (Python Scripting): Add entries for the new class gdb.Architecture and the new method gdb.Frame.architecture. * python/py-arch.c: Implement gdb.Architecture class. * python/py-frame.c (frapy_arch): Implement the method gdb.Frame.architecture(). (frame_object_methods): Add 'architecture' to the method table. * python/python-internal.h: Add declarations of new utility functions. * python/python.c (_initialize_python): Initialize gdb.Architecture class. * doc/gdb.texinfo (Architectures In Python): New sub-sub-section describing the gdb.Architecture class. (Frames In Python): Add description about the new method gdb.Frame.architecture(). * testsuite/gdb.python/frame.exp: Add a test for gdb.Frame.architecture() method.
This commit is contained in:
Siva Chandra Reddy
149
gdb/python/py-arch.c
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149
gdb/python/py-arch.c
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/* Python interface to architecture
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Copyright (C) 2013 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 "gdbarch.h"
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#include "arch-utils.h"
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#include "python-internal.h"
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typedef struct arch_object_type_object {
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PyObject_HEAD
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struct gdbarch *gdbarch;
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} arch_object;
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static struct gdbarch_data *arch_object_data = NULL;
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static PyTypeObject arch_object_type;
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/* Associates an arch_object with GDBARCH as gdbarch_data via the gdbarch
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post init registration mechanism (gdbarch_data_register_post_init). */
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static void *
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arch_object_data_init (struct gdbarch *gdbarch)
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{
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arch_object *arch_obj = PyObject_New (arch_object, &arch_object_type);
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if (arch_obj == NULL)
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return NULL;
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arch_obj->gdbarch = gdbarch;
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return (void *) arch_obj;
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}
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/* Returns the struct gdbarch value corresponding to the given Python
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architecture object OBJ. */
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struct gdbarch *
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arch_object_to_gdbarch (PyObject *obj)
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{
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arch_object *py_arch = (arch_object *) obj;
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return py_arch->gdbarch;
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}
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/* Returns the Python architecture object corresponding to GDBARCH.
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Returns a new reference to the arch_object associated as data with
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GDBARCH. */
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PyObject *
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gdbarch_to_arch_object (struct gdbarch *gdbarch)
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{
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PyObject *new_ref = (PyObject *) gdbarch_data (gdbarch, arch_object_data);
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/* new_ref could be NULL if registration of arch_object with GDBARCH failed
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in arch_object_data_init. */
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Py_XINCREF (new_ref);
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return new_ref;
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}
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/* Implementation of gdb.Architecture.name (self) -> String.
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Returns the name of the architecture as a string value. */
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static PyObject *
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archpy_name (PyObject *self, PyObject *args)
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{
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struct gdbarch *gdbarch = arch_object_to_gdbarch (self);
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const char *name = (gdbarch_bfd_arch_info (gdbarch))->printable_name;
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PyObject *py_name = PyString_FromString (name);
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return py_name;
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}
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/* Initializes the Architecture class in the gdb module. */
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void
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gdbpy_initialize_arch (void)
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{
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arch_object_data = gdbarch_data_register_post_init (arch_object_data_init);
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arch_object_type.tp_new = PyType_GenericNew;
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if (PyType_Ready (&arch_object_type) < 0)
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return;
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Py_INCREF (&arch_object_type);
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PyModule_AddObject (gdb_module, "Architecture",
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(PyObject *) &arch_object_type);
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}
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static PyMethodDef arch_object_methods [] = {
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{ "name", archpy_name, METH_NOARGS,
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"name () -> String.\n\
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Return the name of the architecture as a string value." },
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{NULL} /* Sentinel */
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};
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static PyTypeObject arch_object_type = {
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PyVarObject_HEAD_INIT (NULL, 0)
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"gdb.Architecture", /* tp_name */
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sizeof (arch_object), /* tp_basicsize */
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0, /* tp_itemsize */
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0, /* 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 architecture 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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arch_object_methods, /* tp_methods */
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0, /* tp_members */
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0, /* 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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};
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