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
|
//===-- Valgrind.cpp - Implement Valgrind communication ---------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Defines Valgrind communication methods, if HAVE_VALGRIND_VALGRIND_H is
// defined. If we have valgrind.h but valgrind isn't running, its macros are
// no-ops.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Valgrind.h"
#include "llvm/Config/config.h"
#if HAVE_VALGRIND_VALGRIND_H
#include <valgrind/valgrind.h>
static bool InitNotUnderValgrind() {
return !RUNNING_ON_VALGRIND;
}
// This bool is negated from what we'd expect because code may run before it
// gets initialized. If that happens, it will appear to be 0 (false), and we
// want that to cause the rest of the code in this file to run the
// Valgrind-provided macros.
static const bool NotUnderValgrind = InitNotUnderValgrind();
bool llvm::sys::RunningOnValgrind() {
if (NotUnderValgrind)
return false;
return RUNNING_ON_VALGRIND;
}
void llvm::sys::ValgrindDiscardTranslations(const void *Addr, size_t Len) {
if (NotUnderValgrind)
return;
VALGRIND_DISCARD_TRANSLATIONS(Addr, Len);
}
#else // !HAVE_VALGRIND_VALGRIND_H
bool llvm::sys::RunningOnValgrind() {
return false;
}
void llvm::sys::ValgrindDiscardTranslations(const void *Addr, size_t Len) {
}
#endif // !HAVE_VALGRIND_VALGRIND_H
#if LLVM_ENABLE_THREADS != 0 && !defined(NDEBUG)
// These functions require no implementation, tsan just looks at the arguments
// they're called with. However, they are required to be weak as some other
// application or library may already be providing these definitions for the
// same reason we are.
extern "C" {
LLVM_ATTRIBUTE_WEAK void AnnotateHappensAfter(const char *file, int line,
const volatile void *cv);
void AnnotateHappensAfter(const char *file, int line, const volatile void *cv) {
}
LLVM_ATTRIBUTE_WEAK void AnnotateHappensBefore(const char *file, int line,
const volatile void *cv);
void AnnotateHappensBefore(const char *file, int line,
const volatile void *cv) {}
LLVM_ATTRIBUTE_WEAK void AnnotateIgnoreWritesBegin(const char *file, int line);
void AnnotateIgnoreWritesBegin(const char *file, int line) {}
LLVM_ATTRIBUTE_WEAK void AnnotateIgnoreWritesEnd(const char *file, int line);
void AnnotateIgnoreWritesEnd(const char *file, int line) {}
}
#endif
|
