1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <stdlib.h>
30 #include <string.h>
31 #include <sys/mman.h>
32
33 #include <gtest/gtest.h>
34
35 #include "linker_sleb128.h"
36
TEST(linker_sleb128,smoke)37 TEST(linker_sleb128, smoke) {
38 std::vector<uint8_t> encoding;
39 // 624485
40 encoding.push_back(0xe5);
41 encoding.push_back(0x8e);
42 encoding.push_back(0x26);
43 // 0
44 encoding.push_back(0x00);
45 // 1
46 encoding.push_back(0x01);
47 // 63
48 encoding.push_back(0x3f);
49 // 64
50 encoding.push_back(0xc0);
51 encoding.push_back(0x00);
52 // -1
53 encoding.push_back(0x7f);
54 // -624485
55 encoding.push_back(0x9b);
56 encoding.push_back(0xf1);
57 encoding.push_back(0x59);
58 // 2147483647
59 encoding.push_back(0xff);
60 encoding.push_back(0xff);
61 encoding.push_back(0xff);
62 encoding.push_back(0xff);
63 encoding.push_back(0x07);
64 // -2147483648
65 encoding.push_back(0x80);
66 encoding.push_back(0x80);
67 encoding.push_back(0x80);
68 encoding.push_back(0x80);
69 encoding.push_back(0x78);
70 #if defined(__LP64__)
71 // 9223372036854775807
72 encoding.push_back(0xff);
73 encoding.push_back(0xff);
74 encoding.push_back(0xff);
75 encoding.push_back(0xff);
76 encoding.push_back(0xff);
77 encoding.push_back(0xff);
78 encoding.push_back(0xff);
79 encoding.push_back(0xff);
80 encoding.push_back(0xff);
81 encoding.push_back(0x00);
82 // -9223372036854775808
83 encoding.push_back(0x80);
84 encoding.push_back(0x80);
85 encoding.push_back(0x80);
86 encoding.push_back(0x80);
87 encoding.push_back(0x80);
88 encoding.push_back(0x80);
89 encoding.push_back(0x80);
90 encoding.push_back(0x80);
91 encoding.push_back(0x80);
92 encoding.push_back(0x7f);
93 #endif
94 sleb128_decoder decoder(&encoding[0], encoding.size());
95
96 EXPECT_EQ(624485U, decoder.pop_front());
97
98 EXPECT_EQ(0U, decoder.pop_front());
99 EXPECT_EQ(1U, decoder.pop_front());
100 EXPECT_EQ(63U, decoder.pop_front());
101 EXPECT_EQ(64U, decoder.pop_front());
102 EXPECT_EQ(static_cast<size_t>(-1), decoder.pop_front());
103 EXPECT_EQ(static_cast<size_t>(-624485), decoder.pop_front());
104 EXPECT_EQ(2147483647U, decoder.pop_front());
105 EXPECT_EQ(static_cast<size_t>(-2147483648), decoder.pop_front());
106 #if defined(__LP64__)
107 EXPECT_EQ(9223372036854775807ULL, decoder.pop_front());
108 EXPECT_EQ(static_cast<uint64_t>(-9223372036854775807LL - 1), decoder.pop_front());
109 #endif
110 }
111