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
|
# Copyright (c) Meta Platforms, Inc. and affiliates.
# SPDX-License-Identifier: LGPL-2.1-or-later
import ctypes
import _drgn
_drgn_cdll = ctypes.CDLL(_drgn.__file__)
class _drgn_error(ctypes.Structure):
_fields_ = [
("code", ctypes.c_uint),
("errnum", ctypes.c_int),
("path", ctypes.c_char_p),
("msg", ctypes.c_char_p),
]
class _drgn_type(ctypes.Structure):
pass
class _drgn_qualified_type(ctypes.Structure):
_fields_ = [
("type", ctypes.POINTER(_drgn_type)),
("qualifiers", ctypes.c_uint),
]
class _drgn_token(ctypes.Structure):
_fields_ = [
("kind", ctypes.c_int),
("value", ctypes.c_void_p),
("len", ctypes.c_size_t),
]
_drgn_cdll.drgn_test_serialize_bits.restype = None
_drgn_cdll.drgn_test_serialize_bits.argtypes = [
ctypes.c_void_p,
ctypes.c_uint64,
ctypes.c_uint64,
ctypes.c_uint8,
ctypes.c_bool,
]
_drgn_cdll.drgn_test_deserialize_bits.restype = ctypes.c_uint64
_drgn_cdll.drgn_test_deserialize_bits.argtypes = [
ctypes.c_void_p,
ctypes.c_uint64,
ctypes.c_uint8,
ctypes.c_bool,
]
def serialize_bits(buf, bit_offset, uvalue, bit_size, little_endian):
assert (bit_offset + bit_size + 7) // 8 <= len(buf)
c_buf = (ctypes.c_char * len(buf)).from_buffer(buf)
return _drgn_cdll.drgn_test_serialize_bits(
c_buf, bit_offset, uvalue, bit_size, little_endian
)
def deserialize_bits(buf, bit_offset, bit_size, little_endian):
assert (bit_offset + bit_size + 7) // 8 <= len(buf)
c_buf = (ctypes.c_char * len(buf)).from_buffer_copy(buf)
return _drgn_cdll.drgn_test_deserialize_bits(
c_buf, bit_offset, bit_size, little_endian
)
|
