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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
//===-- tsan_report.cc ----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of ThreadSanitizer (TSan), a race detector.
//
//===----------------------------------------------------------------------===//
#include "tsan_report.h"
#include "tsan_platform.h"
#include "tsan_rtl.h"
namespace __tsan {
ReportDesc::ReportDesc()
: stacks(MBlockReportStack)
, mops(MBlockReportMop)
, locs(MBlockReportLoc)
, mutexes(MBlockReportMutex)
, threads(MBlockReportThread) {
}
ReportDesc::~ReportDesc() {
}
#ifndef TSAN_GO
static void PrintHeader(ReportType typ) {
TsanPrintf("WARNING: ThreadSanitizer: ");
if (typ == ReportTypeRace)
TsanPrintf("data race");
else if (typ == ReportTypeUseAfterFree)
TsanPrintf("heap-use-after-free");
else if (typ == ReportTypeThreadLeak)
TsanPrintf("thread leak");
else if (typ == ReportTypeMutexDestroyLocked)
TsanPrintf("destroy of a locked mutex");
else if (typ == ReportTypeSignalUnsafe)
TsanPrintf("signal-unsafe call inside of a signal");
else if (typ == ReportTypeErrnoInSignal)
TsanPrintf("signal handler spoils errno");
TsanPrintf(" (pid=%d)\n", GetPid());
}
static void PrintStack(const ReportStack *ent) {
for (int i = 0; ent; ent = ent->next, i++) {
TsanPrintf(" #%d %s %s:%d", i, ent->func, ent->file, ent->line);
if (ent->col)
TsanPrintf(":%d", ent->col);
if (ent->module && ent->offset)
TsanPrintf(" (%s+%p)\n", ent->module, (void*)ent->offset);
else
TsanPrintf(" (%p)\n", (void*)ent->pc);
}
}
static void PrintMop(const ReportMop *mop, bool first) {
TsanPrintf(" %s of size %d at %p",
(first ? (mop->write ? "Write" : "Read")
: (mop->write ? "Previous write" : "Previous read")),
mop->size, (void*)mop->addr);
if (mop->tid == 0)
TsanPrintf(" by main thread:\n");
else
TsanPrintf(" by thread %d:\n", mop->tid);
PrintStack(mop->stack);
}
static void PrintLocation(const ReportLocation *loc) {
if (loc->type == ReportLocationGlobal) {
TsanPrintf(" Location is global '%s' of size %zu at %zx %s:%d\n",
loc->name, loc->size, loc->addr, loc->file, loc->line);
} else if (loc->type == ReportLocationHeap) {
TsanPrintf(" Location is heap of size %zu at %zx allocated "
"by thread %d:\n", loc->size, loc->addr, loc->tid);
PrintStack(loc->stack);
} else if (loc->type == ReportLocationStack) {
TsanPrintf(" Location is stack of thread %d:\n", loc->tid);
}
}
static void PrintMutex(const ReportMutex *rm) {
if (rm->stack == 0)
return;
TsanPrintf(" Mutex %d created at:\n", rm->id);
PrintStack(rm->stack);
}
static void PrintThread(const ReportThread *rt) {
if (rt->id == 0) // Little sense in describing the main thread.
return;
TsanPrintf(" Thread %d", rt->id);
if (rt->name)
TsanPrintf(" '%s'", rt->name);
TsanPrintf(" (%s)", rt->running ? "running" : "finished");
if (rt->stack)
TsanPrintf(" created at:");
TsanPrintf("\n");
PrintStack(rt->stack);
}
void PrintReport(const ReportDesc *rep) {
TsanPrintf("==================\n");
PrintHeader(rep->typ);
for (uptr i = 0; i < rep->stacks.Size(); i++)
PrintStack(rep->stacks[i]);
for (uptr i = 0; i < rep->mops.Size(); i++)
PrintMop(rep->mops[i], i == 0);
for (uptr i = 0; i < rep->locs.Size(); i++)
PrintLocation(rep->locs[i]);
for (uptr i = 0; i < rep->mutexes.Size(); i++)
PrintMutex(rep->mutexes[i]);
for (uptr i = 0; i < rep->threads.Size(); i++)
PrintThread(rep->threads[i]);
TsanPrintf("==================\n");
}
#else
static void PrintStack(const ReportStack *ent) {
for (int i = 0; ent; ent = ent->next, i++) {
TsanPrintf(" %s()\n %s:%d +0x%zx\n",
ent->func, ent->file, ent->line, (void*)ent->offset);
}
}
static void PrintMop(const ReportMop *mop, bool first) {
TsanPrintf("%s by goroutine %d:\n",
(first ? (mop->write ? "Write" : "Read")
: (mop->write ? "Previous write" : "Previous read")),
mop->tid);
PrintStack(mop->stack);
}
static void PrintThread(const ReportThread *rt) {
if (rt->id == 0) // Little sense in describing the main thread.
return;
TsanPrintf("Goroutine %d (%s) created at:\n",
rt->id, rt->running ? "running" : "finished");
PrintStack(rt->stack);
}
void PrintReport(const ReportDesc *rep) {
TsanPrintf("==================\n");
TsanPrintf("WARNING: DATA RACE at %p\n", (void*)rep->mops[0]->addr);
for (uptr i = 0; i < rep->mops.Size(); i++)
PrintMop(rep->mops[i], i == 0);
for (uptr i = 0; i < rep->threads.Size(); i++)
PrintThread(rep->threads[i]);
TsanPrintf("==================\n");
}
#endif
} // namespace __tsan
|
