internal_defs.h
4.72 KB
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
//===-- internal_defs.h -----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef SCUDO_INTERNAL_DEFS_H_
#define SCUDO_INTERNAL_DEFS_H_
#include "platform.h"
#include <stdint.h>
#ifndef SCUDO_DEBUG
#define SCUDO_DEBUG 0
#endif
#define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)[0]))
// String related macros.
#define STRINGIFY_(S) #S
#define STRINGIFY(S) STRINGIFY_(S)
#define CONCATENATE_(S, C) S##C
#define CONCATENATE(S, C) CONCATENATE_(S, C)
// Attributes & builtins related macros.
#define INTERFACE __attribute__((visibility("default")))
#define WEAK __attribute__((weak))
#define ALWAYS_INLINE inline __attribute__((always_inline))
#define ALIAS(X) __attribute__((alias(X)))
// Please only use the ALIGNED macro before the type. Using ALIGNED after the
// variable declaration is not portable.
#define ALIGNED(X) __attribute__((aligned(X)))
#define FORMAT(F, A) __attribute__((format(printf, F, A)))
#define NOINLINE __attribute__((noinline))
#define NORETURN __attribute__((noreturn))
#define THREADLOCAL __thread
#define LIKELY(X) __builtin_expect(!!(X), 1)
#define UNLIKELY(X) __builtin_expect(!!(X), 0)
#if defined(__i386__) || defined(__x86_64__)
// __builtin_prefetch(X) generates prefetchnt0 on x86
#define PREFETCH(X) __asm__("prefetchnta (%0)" : : "r"(X))
#else
#define PREFETCH(X) __builtin_prefetch(X)
#endif
#define UNUSED __attribute__((unused))
#define USED __attribute__((used))
#define NOEXCEPT noexcept
namespace scudo {
typedef unsigned long uptr;
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned long long u64;
typedef signed long sptr;
typedef signed char s8;
typedef signed short s16;
typedef signed int s32;
typedef signed long long s64;
// The following two functions have platform specific implementations.
void outputRaw(const char *Buffer);
void NORETURN die();
#define RAW_CHECK_MSG(Expr, Msg) \
do { \
if (UNLIKELY(!(Expr))) { \
outputRaw(Msg); \
die(); \
} \
} while (false)
#define RAW_CHECK(Expr) RAW_CHECK_MSG(Expr, #Expr)
void NORETURN reportCheckFailed(const char *File, int Line,
const char *Condition, u64 Value1, u64 Value2);
#define CHECK_IMPL(C1, Op, C2) \
do { \
scudo::u64 V1 = (scudo::u64)(C1); \
scudo::u64 V2 = (scudo::u64)(C2); \
if (UNLIKELY(!(V1 Op V2))) { \
scudo::reportCheckFailed(__FILE__, __LINE__, \
"(" #C1 ") " #Op " (" #C2 ")", V1, V2); \
scudo::die(); \
} \
} while (false)
#define CHECK(A) CHECK_IMPL((A), !=, 0)
#define CHECK_EQ(A, B) CHECK_IMPL((A), ==, (B))
#define CHECK_NE(A, B) CHECK_IMPL((A), !=, (B))
#define CHECK_LT(A, B) CHECK_IMPL((A), <, (B))
#define CHECK_LE(A, B) CHECK_IMPL((A), <=, (B))
#define CHECK_GT(A, B) CHECK_IMPL((A), >, (B))
#define CHECK_GE(A, B) CHECK_IMPL((A), >=, (B))
#if SCUDO_DEBUG
#define DCHECK(A) CHECK(A)
#define DCHECK_EQ(A, B) CHECK_EQ(A, B)
#define DCHECK_NE(A, B) CHECK_NE(A, B)
#define DCHECK_LT(A, B) CHECK_LT(A, B)
#define DCHECK_LE(A, B) CHECK_LE(A, B)
#define DCHECK_GT(A, B) CHECK_GT(A, B)
#define DCHECK_GE(A, B) CHECK_GE(A, B)
#else
#define DCHECK(A)
#define DCHECK_EQ(A, B)
#define DCHECK_NE(A, B)
#define DCHECK_LT(A, B)
#define DCHECK_LE(A, B)
#define DCHECK_GT(A, B)
#define DCHECK_GE(A, B)
#endif
// The superfluous die() call effectively makes this macro NORETURN.
#define UNREACHABLE(Msg) \
do { \
CHECK(0 && Msg); \
die(); \
} while (0)
} // namespace scudo
#endif // SCUDO_INTERNAL_DEFS_H_