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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
# Copyright (c) Meta Platforms, Inc. and affiliates.
# SPDX-License-Identifier: LGPL-2.1-or-later
import collections
from drgn import NULL
from drgn.helpers import ValidationError
from drgn.helpers.linux.list import (
hlist_empty,
hlist_for_each,
hlist_for_each_entry,
list_count_nodes,
list_empty,
list_first_entry,
list_first_entry_or_null,
list_for_each,
list_for_each_entry,
list_for_each_entry_reverse,
list_for_each_reverse,
list_is_singular,
list_last_entry,
list_next_entry,
list_prev_entry,
validate_list,
validate_list_for_each,
validate_list_for_each_entry,
)
from tests.linux_kernel import LinuxKernelTestCase, skip_unless_have_test_kmod
@skip_unless_have_test_kmod
class TestList(LinuxKernelTestCase):
@classmethod
def setUpClass(cls):
super().setUpClass()
cls.empty = cls.prog["drgn_test_empty_list"].address_of_()
cls.full = cls.prog["drgn_test_full_list"].address_of_()
cls.entries = cls.prog["drgn_test_list_entries"]
cls.num_entries = 3
cls.singular = cls.prog["drgn_test_singular_list"].address_of_()
cls.singular_entry = cls.prog["drgn_test_singular_list_entry"].address_of_()
cls.singular_node = cls.singular_entry.node.address_of_()
cls.corrupted = cls.prog["drgn_test_corrupted_list"].address_of_()
def node(self, n):
return self.entries[n].node.address_of_()
def entry(self, n):
return self.entries[n].address_of_()
def test_list_empty(self):
self.assertTrue(list_empty(self.empty))
self.assertFalse(list_empty(self.full))
self.assertFalse(list_empty(self.singular))
def test_list_is_singular(self):
self.assertFalse(list_is_singular(self.empty))
self.assertFalse(list_is_singular(self.full))
self.assertTrue(list_is_singular(self.singular))
def test_list_count_nodes(self):
self.assertEqual(list_count_nodes(self.empty), 0)
self.assertEqual(list_count_nodes(self.full), self.num_entries)
self.assertEqual(list_count_nodes(self.singular), 1)
def test_list_first_entry(self):
self.assertEqual(
list_first_entry(self.full, "struct drgn_test_list_entry", "node"),
self.entry(0),
)
self.assertEqual(
list_first_entry(self.singular, "struct drgn_test_list_entry", "node"),
self.singular_entry,
)
def test_list_first_entry_or_null(self):
self.assertEqual(
list_first_entry_or_null(self.empty, "struct drgn_test_list_entry", "node"),
NULL(self.prog, "struct drgn_test_list_entry *"),
)
self.assertEqual(
list_first_entry_or_null(self.full, "struct drgn_test_list_entry", "node"),
self.entry(0),
)
self.assertEqual(
list_first_entry_or_null(
self.singular, "struct drgn_test_list_entry", "node"
),
self.singular_entry,
)
def test_list_last_entry(self):
self.assertEqual(
list_last_entry(self.full, "struct drgn_test_list_entry", "node"),
self.entry(self.num_entries - 1),
)
self.assertEqual(
list_last_entry(self.singular, "struct drgn_test_list_entry", "node"),
self.singular_entry,
)
def test_list_next_entry(self):
for i in range(self.num_entries - 1):
self.assertEqual(list_next_entry(self.entry(i), "node"), self.entry(i + 1))
def test_list_prev_entry(self):
for i in range(1, self.num_entries):
self.assertEqual(list_prev_entry(self.entry(i), "node"), self.entry(i - 1))
def test_list_for_each(self):
self.assertEqual(list(list_for_each(self.empty)), [])
self.assertEqual(
list(list_for_each(self.full)),
[self.node(i) for i in range(self.num_entries)],
)
self.assertEqual(list(list_for_each(self.singular)), [self.singular_node])
def test_list_for_each_reverse(self):
self.assertEqual(list(list_for_each_reverse(self.empty)), [])
self.assertEqual(
list(list_for_each_reverse(self.full)),
[self.node(i) for i in range(self.num_entries - 1, -1, -1)],
)
self.assertEqual(
list(list_for_each_reverse(self.singular)), [self.singular_node]
)
def test_list_for_each_entry(self):
self.assertEqual(
list(
list_for_each_entry("struct drgn_test_list_entry", self.empty, "node")
),
[],
)
self.assertEqual(
list(list_for_each_entry("struct drgn_test_list_entry", self.full, "node")),
[self.entry(i) for i in range(self.num_entries)],
)
self.assertEqual(
list(
list_for_each_entry(
"struct drgn_test_list_entry", self.singular, "node"
)
),
[self.singular_entry],
)
def test_list_for_each_entry_reverse(self):
self.assertEqual(
list(
list_for_each_entry_reverse(
"struct drgn_test_list_entry", self.empty, "node"
)
),
[],
)
self.assertEqual(
list(
list_for_each_entry_reverse(
"struct drgn_test_list_entry", self.full, "node"
)
),
[self.entry(i) for i in range(self.num_entries - 1, -1, -1)],
)
self.assertEqual(
list(
list_for_each_entry_reverse(
"struct drgn_test_list_entry", self.singular, "node"
)
),
[self.singular_entry],
)
def test_validate_list(self):
for head in (self.empty, self.full, self.singular):
validate_list(head)
self.assertRaises(ValidationError, validate_list, self.corrupted)
def test_validate_list_for_each(self):
for head in (self.empty, self.full, self.singular):
self.assertEqual(
list(validate_list_for_each(head)), list(list_for_each(head))
)
self.assertRaises(
ValidationError,
collections.deque,
validate_list_for_each(self.corrupted),
0,
)
def test_validate_list_for_each_entry(self):
for head in (self.empty, self.full, self.singular):
self.assertEqual(
list(
validate_list_for_each_entry(
"struct drgn_test_list_entry", head, "node"
)
),
list(list_for_each_entry("struct drgn_test_list_entry", head, "node")),
)
self.assertRaises(
ValidationError,
collections.deque,
validate_list_for_each_entry(
"struct drgn_test_list_entry", self.corrupted, "node"
),
0,
)
@skip_unless_have_test_kmod
class TestHlist(LinuxKernelTestCase):
@classmethod
def setUpClass(cls):
super().setUpClass()
cls.empty = cls.prog["drgn_test_empty_hlist"].address_of_()
cls.full = cls.prog["drgn_test_full_hlist"].address_of_()
cls.entries = cls.prog["drgn_test_hlist_entries"]
cls.num_entries = 3
def node(self, n):
return self.entries[n].node.address_of_()
def entry(self, n):
return self.entries[n].address_of_()
def test_hlist_empty(self):
self.assertTrue(hlist_empty(self.empty))
self.assertFalse(hlist_empty(self.full))
def test_hlist_for_each(self):
self.assertEqual(list(hlist_for_each(self.empty)), [])
self.assertEqual(
list(hlist_for_each(self.full)),
[self.node(i) for i in range(self.num_entries)],
)
def test_hlist_for_each_entry(self):
self.assertEqual(
list(
hlist_for_each_entry("struct drgn_test_hlist_entry", self.empty, "node")
),
[],
)
self.assertEqual(
list(
hlist_for_each_entry("struct drgn_test_hlist_entry", self.full, "node")
),
[self.entry(i) for i in range(self.num_entries)],
)
|
