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gerrit.omnirom.org / android_system_core / b5ade0341741d9c87f6c73e5c5f7b6eeceb4bce8 / . / libunwindstack / tests / MapsTest.cpp
blob: 216873f8c27efc726c1980c33bf8d264cd3c4327 [file] [log] [blame]
Christopher Ferris723cf9b2017-01-19 20:08:48 -0800[diff] [blame]1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <sys/mman.h>
18
19#include <android-base/file.h>
20#include <android-base/test_utils.h>
21#include <gtest/gtest.h>
22
23#include "Maps.h"
24
25#include "LogFake.h"
26
27class MapsTest : public ::testing::Test {
28 protected:
29 void SetUp() override {
30 ResetLogs();
31 }
32};
33
34TEST_F(MapsTest, parse_permissions) {
35 MapsBuffer maps("1000-2000 ---- 00000000 00:00 0\n"
36 "2000-3000 r--- 00000000 00:00 0\n"
37 "3000-4000 -w-- 00000000 00:00 0\n"
38 "4000-5000 --x- 00000000 00:00 0\n"
39 "5000-6000 rwx- 00000000 00:00 0\n");
40
41 ASSERT_TRUE(maps.Parse());
42 ASSERT_EQ(5U, maps.Total());
43 auto it = maps.begin();
44 ASSERT_EQ(PROT_NONE, it->flags);
45 ASSERT_EQ(0x1000U, it->start);
46 ASSERT_EQ(0x2000U, it->end);
47 ASSERT_EQ(0U, it->offset);
48 ASSERT_EQ("", it->name);
49 ++it;
50 ASSERT_EQ(PROT_READ, it->flags);
51 ASSERT_EQ(0x2000U, it->start);
52 ASSERT_EQ(0x3000U, it->end);
53 ASSERT_EQ(0U, it->offset);
54 ASSERT_EQ("", it->name);
55 ++it;
56 ASSERT_EQ(PROT_WRITE, it->flags);
57 ASSERT_EQ(0x3000U, it->start);
58 ASSERT_EQ(0x4000U, it->end);
59 ASSERT_EQ(0U, it->offset);
60 ASSERT_EQ("", it->name);
61 ++it;
62 ASSERT_EQ(PROT_EXEC, it->flags);
63 ASSERT_EQ(0x4000U, it->start);
64 ASSERT_EQ(0x5000U, it->end);
65 ASSERT_EQ(0U, it->offset);
66 ASSERT_EQ("", it->name);
67 ++it;
68 ASSERT_EQ(PROT_READ | PROT_WRITE | PROT_EXEC, it->flags);
69 ASSERT_EQ(0x5000U, it->start);
70 ASSERT_EQ(0x6000U, it->end);
71 ASSERT_EQ(0U, it->offset);
72 ASSERT_EQ("", it->name);
73 ++it;
74 ASSERT_EQ(it, maps.end());
75}
76
77TEST_F(MapsTest, parse_name) {
78 MapsBuffer maps("720b29b000-720b29e000 rw-p 00000000 00:00 0\n"
79 "720b29e000-720b29f000 rw-p 00000000 00:00 0 /system/lib/fake.so\n"
80 "720b29f000-720b2a0000 rw-p 00000000 00:00 0");
81
82 ASSERT_TRUE(maps.Parse());
83 ASSERT_EQ(3U, maps.Total());
84 auto it = maps.begin();
85 ASSERT_EQ("", it->name);
86 ASSERT_EQ(0x720b29b000U, it->start);
87 ASSERT_EQ(0x720b29e000U, it->end);
88 ASSERT_EQ(0U, it->offset);
89 ASSERT_EQ(PROT_READ | PROT_WRITE, it->flags);
90 ++it;
91 ASSERT_EQ("/system/lib/fake.so", it->name);
92 ASSERT_EQ(0x720b29e000U, it->start);
93 ASSERT_EQ(0x720b29f000U, it->end);
94 ASSERT_EQ(0U, it->offset);
95 ASSERT_EQ(PROT_READ | PROT_WRITE, it->flags);
96 ++it;
97 ASSERT_EQ("", it->name);
98 ASSERT_EQ(0x720b29f000U, it->start);
99 ASSERT_EQ(0x720b2a0000U, it->end);
100 ASSERT_EQ(0U, it->offset);
101 ASSERT_EQ(PROT_READ | PROT_WRITE, it->flags);
102 ++it;
103 ASSERT_EQ(it, maps.end());
104}
105
106TEST_F(MapsTest, parse_offset) {
107 MapsBuffer maps("a000-e000 rw-p 00000000 00:00 0 /system/lib/fake.so\n"
108 "e000-f000 rw-p 00a12345 00:00 0 /system/lib/fake.so\n");
109
110 ASSERT_TRUE(maps.Parse());
111 ASSERT_EQ(2U, maps.Total());
112 auto it = maps.begin();
113 ASSERT_EQ(0U, it->offset);
114 ASSERT_EQ(0xa000U, it->start);
115 ASSERT_EQ(0xe000U, it->end);
116 ASSERT_EQ(PROT_READ | PROT_WRITE, it->flags);
117 ASSERT_EQ("/system/lib/fake.so", it->name);
118 ++it;
119 ASSERT_EQ(0xa12345U, it->offset);
120 ASSERT_EQ(0xe000U, it->start);
121 ASSERT_EQ(0xf000U, it->end);
122 ASSERT_EQ(PROT_READ | PROT_WRITE, it->flags);
123 ASSERT_EQ("/system/lib/fake.so", it->name);
124 ++it;
125 ASSERT_EQ(maps.end(), it);
126}
127
128TEST_F(MapsTest, file_smoke) {
129 TemporaryFile tf;
130 ASSERT_TRUE(tf.fd != -1);
131
132 ASSERT_TRUE(android::base::WriteStringToFile(
133 "720b29b000-720b29e000 r-xp a0000000 00:00 0 /fake.so\n"
134 "720b2b0000-720b2e0000 r-xp b0000000 00:00 0 /fake2.so\n"
135 "720b2e0000-720b2f0000 r-xp c0000000 00:00 0 /fake3.so\n",
136 tf.path, 0660, getuid(), getgid()));
137
138 MapsFile maps(tf.path);
139
140 ASSERT_TRUE(maps.Parse());
141 ASSERT_EQ(3U, maps.Total());
142 auto it = maps.begin();
143 ASSERT_EQ(0x720b29b000U, it->start);
144 ASSERT_EQ(0x720b29e000U, it->end);
145 ASSERT_EQ(0xa0000000U, it->offset);
146 ASSERT_EQ(PROT_READ | PROT_EXEC, it->flags);
147 ASSERT_EQ("/fake.so", it->name);
148 ++it;
149 ASSERT_EQ(0x720b2b0000U, it->start);
150 ASSERT_EQ(0x720b2e0000U, it->end);
151 ASSERT_EQ(0xb0000000U, it->offset);
152 ASSERT_EQ(PROT_READ | PROT_EXEC, it->flags);
153 ASSERT_EQ("/fake2.so", it->name);
154 ++it;
155 ASSERT_EQ(0x720b2e0000U, it->start);
156 ASSERT_EQ(0x720b2f0000U, it->end);
157 ASSERT_EQ(0xc0000000U, it->offset);
158 ASSERT_EQ(PROT_READ | PROT_EXEC, it->flags);
159 ASSERT_EQ("/fake3.so", it->name);
160 ++it;
161 ASSERT_EQ(it, maps.end());
162}
163
164TEST_F(MapsTest, find) {
165 MapsBuffer maps("1000-2000 r--p 00000010 00:00 0 /system/lib/fake1.so\n"
166 "3000-4000 -w-p 00000020 00:00 0 /system/lib/fake2.so\n"
167 "6000-8000 --xp 00000030 00:00 0 /system/lib/fake3.so\n"
168 "a000-b000 rw-p 00000040 00:00 0 /system/lib/fake4.so\n"
169 "e000-f000 rwxp 00000050 00:00 0 /system/lib/fake5.so\n");
170 ASSERT_TRUE(maps.Parse());
171 ASSERT_EQ(5U, maps.Total());
172
173 ASSERT_TRUE(maps.Find(0x500) == nullptr);
174 ASSERT_TRUE(maps.Find(0x2000) == nullptr);
175 ASSERT_TRUE(maps.Find(0x5010) == nullptr);
176 ASSERT_TRUE(maps.Find(0x9a00) == nullptr);
177 ASSERT_TRUE(maps.Find(0xf000) == nullptr);
178 ASSERT_TRUE(maps.Find(0xf010) == nullptr);
179
180 MapInfo* info = maps.Find(0x1000);
181 ASSERT_TRUE(info != nullptr);
182 ASSERT_EQ(0x1000U, info->start);
183 ASSERT_EQ(0x2000U, info->end);
184 ASSERT_EQ(0x10U, info->offset);
185 ASSERT_EQ(PROT_READ, info->flags);
186 ASSERT_EQ("/system/lib/fake1.so", info->name);
187
188 info = maps.Find(0x3020);
189 ASSERT_TRUE(info != nullptr);
190 ASSERT_EQ(0x3000U, info->start);
191 ASSERT_EQ(0x4000U, info->end);
192 ASSERT_EQ(0x20U, info->offset);
193 ASSERT_EQ(PROT_WRITE, info->flags);
194 ASSERT_EQ("/system/lib/fake2.so", info->name);
195
196 info = maps.Find(0x6020);
197 ASSERT_TRUE(info != nullptr);
198 ASSERT_EQ(0x6000U, info->start);
199 ASSERT_EQ(0x8000U, info->end);
200 ASSERT_EQ(0x30U, info->offset);
201 ASSERT_EQ(PROT_EXEC, info->flags);
202 ASSERT_EQ("/system/lib/fake3.so", info->name);
203
204 info = maps.Find(0xafff);
205 ASSERT_TRUE(info != nullptr);
206 ASSERT_EQ(0xa000U, info->start);
207 ASSERT_EQ(0xb000U, info->end);
208 ASSERT_EQ(0x40U, info->offset);
209 ASSERT_EQ(PROT_READ | PROT_WRITE, info->flags);
210 ASSERT_EQ("/system/lib/fake4.so", info->name);
211
212 info = maps.Find(0xe500);
213 ASSERT_TRUE(info != nullptr);
214 ASSERT_EQ(0xe000U, info->start);
215 ASSERT_EQ(0xf000U, info->end);
216 ASSERT_EQ(0x50U, info->offset);
217 ASSERT_EQ(PROT_READ | PROT_WRITE | PROT_EXEC, info->flags);
218 ASSERT_EQ("/system/lib/fake5.so", info->name);
219}