aboutsummaryrefslogtreecommitdiff
path: root/gdb/python/py-arch.c
blob: edd508faf78d70def4724b6e0716267a7b4b885b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
/* Python interface to architecture

   Copyright (C) 2013 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 "gdbarch.h"
#include "arch-utils.h"
#include "python-internal.h"

typedef struct arch_object_type_object {
  PyObject_HEAD
  struct gdbarch *gdbarch;
} arch_object;

static struct gdbarch_data *arch_object_data = NULL;
static PyTypeObject arch_object_type;

/* Associates an arch_object with GDBARCH as gdbarch_data via the gdbarch
   post init registration mechanism (gdbarch_data_register_post_init).  */

static void *
arch_object_data_init (struct gdbarch *gdbarch)
{
  arch_object *arch_obj = PyObject_New (arch_object, &arch_object_type);

  if (arch_obj == NULL)
    return NULL;

  arch_obj->gdbarch = gdbarch;

  return (void *) arch_obj;
}

/* Returns the struct gdbarch value corresponding to the given Python
   architecture object OBJ.  */

struct gdbarch *
arch_object_to_gdbarch (PyObject *obj)
{
  arch_object *py_arch = (arch_object *) obj;

  return py_arch->gdbarch;
}

/* Returns the Python architecture object corresponding to GDBARCH.
   Returns a new reference to the arch_object associated as data with
   GDBARCH.  */

PyObject *
gdbarch_to_arch_object (struct gdbarch *gdbarch)
{
  PyObject *new_ref = (PyObject *) gdbarch_data (gdbarch, arch_object_data);

  /* new_ref could be NULL if registration of arch_object with GDBARCH failed
     in arch_object_data_init.  */
  Py_XINCREF (new_ref);

  return new_ref;
}

/* Implementation of gdb.Architecture.name (self) -> String.
   Returns the name of the architecture as a string value.  */

static PyObject *
archpy_name (PyObject *self, PyObject *args)
{
  struct gdbarch *gdbarch = arch_object_to_gdbarch (self);
  const char *name = (gdbarch_bfd_arch_info (gdbarch))->printable_name;
  PyObject *py_name = PyString_FromString (name);

  return py_name;
}

/* Initializes the Architecture class in the gdb module.  */

void
gdbpy_initialize_arch (void)
{
  arch_object_data = gdbarch_data_register_post_init (arch_object_data_init);
  arch_object_type.tp_new = PyType_GenericNew;
  if (PyType_Ready (&arch_object_type) < 0)
    return;

  Py_INCREF (&arch_object_type);
  PyModule_AddObject (gdb_module, "Architecture",
                      (PyObject *) &arch_object_type);
}

static PyMethodDef arch_object_methods [] = {
  { "name", archpy_name, METH_NOARGS,
    "name () -> String.\n\
Return the name of the architecture as a string value." },
  {NULL}  /* Sentinel */
};

static PyTypeObject arch_object_type = {
  PyVarObject_HEAD_INIT (NULL, 0)
  "gdb.Architecture",                 /* tp_name */
  sizeof (arch_object),               /* tp_basicsize */
  0,                                  /* tp_itemsize */
  0,                                  /* 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 architecture object",          /* tp_doc */
  0,                                  /* tp_traverse */
  0,                                  /* tp_clear */
  0,                                  /* tp_richcompare */
  0,                                  /* tp_weaklistoffset */
  0,                                  /* tp_iter */
  0,                                  /* tp_iternext */
  arch_object_methods,                /* tp_methods */
  0,                                  /* tp_members */
  0,                                  /* 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 */
};