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
|
//===- ASanStackFrameLayoutTest.cpp - Tests for ComputeASanStackFrameLayout===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Transforms/Utils/ASanStackFrameLayout.h"
#include "llvm/ADT/ArrayRef.h"
#include "gtest/gtest.h"
#include <sstream>
using namespace llvm;
static std::string
ShadowBytesToString(ArrayRef<uint8_t> ShadowBytes) {
std::ostringstream os;
for (size_t i = 0, n = ShadowBytes.size(); i < n; i++) {
switch (ShadowBytes[i]) {
case kAsanStackLeftRedzoneMagic: os << "L"; break;
case kAsanStackRightRedzoneMagic: os << "R"; break;
case kAsanStackMidRedzoneMagic: os << "M"; break;
case kAsanStackUseAfterScopeMagic:
os << "S";
break;
default: os << (unsigned)ShadowBytes[i];
}
}
return os.str();
}
// Use macro to preserve line information in EXPECT_EQ output.
#define TEST_LAYOUT(V, Granularity, MinHeaderSize, ExpectedDescr, \
ExpectedShadow, ExpectedShadowAfterScope) \
{ \
SmallVector<ASanStackVariableDescription, 10> Vars = V; \
ASanStackFrameLayout L = \
ComputeASanStackFrameLayout(Vars, Granularity, MinHeaderSize); \
EXPECT_STREQ(ExpectedDescr, \
ComputeASanStackFrameDescription(Vars).c_str()); \
EXPECT_EQ(ExpectedShadow, ShadowBytesToString(GetShadowBytes(Vars, L))); \
EXPECT_EQ(ExpectedShadowAfterScope, \
ShadowBytesToString(GetShadowBytesAfterScope(Vars, L))); \
}
TEST(ASanStackFrameLayout, Test) {
#define VAR(name, size, lifetime, alignment, line) \
ASanStackVariableDescription name##size##_##alignment = { \
#name #size "_" #alignment, \
size, \
lifetime, \
alignment, \
0, \
0, \
line, \
}
VAR(a, 1, 0, 1, 0);
VAR(p, 1, 0, 32, 15);
VAR(p, 1, 0, 256, 2700);
VAR(a, 2, 0, 1, 0);
VAR(a, 3, 0, 1, 0);
VAR(a, 4, 0, 1, 0);
VAR(a, 7, 0, 1, 0);
VAR(a, 8, 8, 1, 0);
VAR(a, 9, 0, 1, 0);
VAR(a, 16, 16, 1, 0);
VAR(a, 41, 9, 1, 7);
VAR(a, 105, 103, 1, 0);
VAR(a, 200, 97, 1, 0);
TEST_LAYOUT({a1_1}, 8, 16, "1 16 1 4 a1_1", "LL1R", "LL1R");
TEST_LAYOUT({a1_1}, 16, 16, "1 16 1 4 a1_1", "L1R", "L1R");
TEST_LAYOUT({a1_1}, 32, 32, "1 32 1 4 a1_1", "L1R", "L1R");
TEST_LAYOUT({a1_1}, 64, 64, "1 64 1 4 a1_1", "L1R", "L1R");
TEST_LAYOUT({p1_32}, 8, 32, "1 32 1 8 p1_32:15", "LLLL1RRR", "LLLL1RRR");
TEST_LAYOUT({p1_32}, 8, 64, "1 64 1 8 p1_32:15", "LLLLLLLL1RRRRRRR",
"LLLLLLLL1RRRRRRR");
TEST_LAYOUT({a1_1}, 8, 32, "1 32 1 4 a1_1", "LLLL1RRR", "LLLL1RRR");
TEST_LAYOUT({a2_1}, 8, 32, "1 32 2 4 a2_1", "LLLL2RRR", "LLLL2RRR");
TEST_LAYOUT({a3_1}, 8, 32, "1 32 3 4 a3_1", "LLLL3RRR", "LLLL3RRR");
TEST_LAYOUT({a4_1}, 8, 32, "1 32 4 4 a4_1", "LLLL4RRR", "LLLL4RRR");
TEST_LAYOUT({a7_1}, 8, 32, "1 32 7 4 a7_1", "LLLL7RRR", "LLLL7RRR");
TEST_LAYOUT({a8_1}, 8, 32, "1 32 8 4 a8_1", "LLLL0RRR", "LLLLSRRR");
TEST_LAYOUT({a9_1}, 8, 32, "1 32 9 4 a9_1", "LLLL01RR", "LLLL01RR");
TEST_LAYOUT({a16_1}, 8, 32, "1 32 16 5 a16_1", "LLLL00RR", "LLLLSSRR");
TEST_LAYOUT({p1_256}, 8, 32, "1 256 1 11 p1_256:2700",
"LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL1RRR",
"LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL1RRR");
TEST_LAYOUT({a41_1}, 8, 32, "1 32 41 7 a41_1:7", "LLLL000001RRRRRR",
"LLLLSS0001RRRRRR");
TEST_LAYOUT({a105_1}, 8, 32, "1 32 105 6 a105_1", "LLLL00000000000001RRRRRR",
"LLLLSSSSSSSSSSSSS1RRRRRR");
{
SmallVector<ASanStackVariableDescription, 10> t = {a1_1, p1_256};
TEST_LAYOUT(t, 8, 32, "2 256 1 11 p1_256:2700 272 1 4 a1_1",
"LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL1M1R",
"LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL1M1R");
}
{
SmallVector<ASanStackVariableDescription, 10> t = {a1_1, a16_1, a41_1};
TEST_LAYOUT(t, 8, 32, "3 32 1 4 a1_1 48 16 5 a16_1 80 41 7 a41_1:7",
"LLLL1M00MM000001RRRR", "LLLL1MSSMMSS0001RRRR");
}
TEST_LAYOUT({a2_1}, 32, 32, "1 32 2 4 a2_1", "L2R", "L2R");
TEST_LAYOUT({a9_1}, 32, 32, "1 32 9 4 a9_1", "L9R", "L9R");
TEST_LAYOUT({a16_1}, 32, 32, "1 32 16 5 a16_1", "L16R", "LSR");
TEST_LAYOUT({p1_256}, 32, 32, "1 256 1 11 p1_256:2700",
"LLLLLLLL1R", "LLLLLLLL1R");
TEST_LAYOUT({a41_1}, 32, 32, "1 32 41 7 a41_1:7", "L09R",
"LS9R");
TEST_LAYOUT({a105_1}, 32, 32, "1 32 105 6 a105_1", "L0009R",
"LSSSSR");
TEST_LAYOUT({a200_1}, 32, 32, "1 32 200 6 a200_1", "L0000008RR",
"LSSSS008RR");
{
SmallVector<ASanStackVariableDescription, 10> t = {a1_1, p1_256};
TEST_LAYOUT(t, 32, 32, "2 256 1 11 p1_256:2700 320 1 4 a1_1",
"LLLLLLLL1M1R", "LLLLLLLL1M1R");
}
{
SmallVector<ASanStackVariableDescription, 10> t = {a1_1, a16_1, a41_1};
TEST_LAYOUT(t, 32, 32, "3 32 1 4 a1_1 96 16 5 a16_1 160 41 7 a41_1:7",
"L1M16M09R", "L1MSMS9R");
}
#undef VAR
#undef TEST_LAYOUT
}
|
