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
|
/**
* Copyright (C) 2012 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it here.
*/
#ifdef _WIN32
#include <ostream>
#include "mongo/platform/basic.h"
#include <DbgHelp.h>
#include "mongo/util/assert_util.h"
#include "mongo/util/exit_code.h"
#include "mongo/util/log.h"
#include "mongo/util/stacktrace.h"
#include "mongo/util/text.h"
namespace mongo {
/* create a process dump.
To use, load up windbg. Set your symbol and source path.
Open the crash dump file. To see the crashing context, use .ecxr
*/
void doMinidump(struct _EXCEPTION_POINTERS* exceptionInfo) {
LPCWSTR dumpFilename = L"mongo.dmp";
HANDLE hFile = CreateFileW(dumpFilename,
GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if ( INVALID_HANDLE_VALUE == hFile ) {
DWORD lasterr = GetLastError();
log() << "failed to open minidump file " << toUtf8String(dumpFilename) << " : "
<< errnoWithDescription( lasterr ) << std::endl;
return;
}
MINIDUMP_EXCEPTION_INFORMATION aMiniDumpInfo;
aMiniDumpInfo.ThreadId = GetCurrentThreadId();
aMiniDumpInfo.ExceptionPointers = exceptionInfo;
aMiniDumpInfo.ClientPointers = TRUE;
log() << "writing minidump diagnostic file " << toUtf8String(dumpFilename) << std::endl;
BOOL bstatus = MiniDumpWriteDump(GetCurrentProcess(),
GetCurrentProcessId(),
hFile,
MiniDumpNormal,
&aMiniDumpInfo,
NULL,
NULL);
if ( FALSE == bstatus ) {
DWORD lasterr = GetLastError();
log() << "failed to create minidump : "
<< errnoWithDescription( lasterr ) << std::endl;
}
CloseHandle(hFile);
}
LONG WINAPI exceptionFilter( struct _EXCEPTION_POINTERS *excPointers ) {
char exceptionString[128];
sprintf_s( exceptionString, sizeof( exceptionString ),
( excPointers->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION ) ?
"(access violation)" : "0x%08X", excPointers->ExceptionRecord->ExceptionCode );
char addressString[32];
sprintf_s( addressString, sizeof( addressString ), "0x%p",
excPointers->ExceptionRecord->ExceptionAddress );
log() << "*** unhandled exception " << exceptionString
<< " at " << addressString << ", terminating" << std::endl;
if ( excPointers->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION ) {
ULONG acType = excPointers->ExceptionRecord->ExceptionInformation[0];
const char* acTypeString;
switch ( acType ) {
case 0:
acTypeString = "read from";
break;
case 1:
acTypeString = "write to";
break;
case 8:
acTypeString = "DEP violation at";
break;
default:
acTypeString = "unknown violation at";
break;
}
sprintf_s( addressString, sizeof( addressString ), " 0x%p",
excPointers->ExceptionRecord->ExceptionInformation[1] );
log() << "*** access violation was a " << acTypeString << addressString << std::endl;
}
log() << "*** stack trace for unhandled exception:" << std::endl;
printWindowsStackTrace( *excPointers->ContextRecord );
doMinidump(excPointers);
// Don't go through normal shutdown procedure. It may make things worse.
log() << "*** immediate exit due to unhandled exception" << std::endl;
::_exit(EXIT_ABRUPT);
// We won't reach here
return EXCEPTION_EXECUTE_HANDLER;
}
LPTOP_LEVEL_EXCEPTION_FILTER filtLast = 0;
void setWindowsUnhandledExceptionFilter() {
filtLast = SetUnhandledExceptionFilter(exceptionFilter);
}
} // namespace mongo
#else
namespace mongo {
void setWindowsUnhandledExceptionFilter() { }
}
#endif // _WIN32
|
