Crash dump进程信息

linux下 比较简单，这里不在说明，

windows下 相对复杂一点 SEH，用SetUnhandledExceptionFilter 来捕获 MiniDumpWriteDump 来写dmp文件，这种方法还不够完全，一些错误 一样无法捕获 比如 多次 delete ，可修改注册表  crash自动生成dmp 而不用代码去控制   结合代码控制 一起使用

1#if _WIN32
2
3#include <windows.h>
4#include <dbghelp.h>
5#pragma comment(lib, "dbghelp.lib")
6
7void myInvalidParameterHandler(const wchar_t* expression,
8	const wchar_t* function,
9	const wchar_t* file,
10	unsigned int line,
11	uintptr_t pReserved)
12{
13
14	throw 1;
15}
16
17LONG CustomCrashHandledExceptionFilter(_EXCEPTION_POINTERS *ExceptionInfo)
18{
19	CHAR strDumpFile[MAX_PATH] = { 0 };
20	SYSTEMTIME tm;
21	HANDLE hFile = NULL;
22
23	time_t rawtime;
24	struct tm * t;
25	time(&rawtime);
26	t = localtime(&rawtime);
27
28	sprintf(strDumpFile, "%d%s%d-%04d-%02d-%02d-%02d-%02d-%02d.dmp", sid, name.c_str(), g_Inner_id, t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
29
30	hFile = CreateFileA(strDumpFile, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
31	if (hFile != INVALID_HANDLE_VALUE)
32	{
33		MINIDUMP_EXCEPTION_INFORMATION ExInfo;
34		ExInfo.ThreadId = GetCurrentThreadId();
35		ExInfo.ExceptionPointers = ExceptionInfo;
36		ExInfo.ClientPointers = NULL;
37		BOOL bOK = MiniDumpWriteDump(
38			GetCurrentProcess(),
39			GetCurrentProcessId(),
40			hFile,
41			MiniDumpNormal,
42			&ExInfo,
43			NULL,
44			NULL);
45
46		CloseHandle(hFile);
47	}
48	return EXCEPTION_CONTINUE_SEARCH;
49}
50LPTOP_LEVEL_EXCEPTION_FILTER WINAPI EmptySetUnhandledExceptionFilter(
51	LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter)
52{
53	return NULL;
54}
55
56void myPurecallHandler(void)
57{
58
59	throw 1;
60}
61
62BOOL HookSetUnhandledExceptionFilter()
63{
64	HMODULE hKernel32 = LoadLibraryA(("kernel32.dll"));
65	if (hKernel32 == NULL) return FALSE;
66	void *pOrgEntry = GetProcAddress(hKernel32, "SetUnhandledExceptionFilter");
67	if (pOrgEntry == NULL) return FALSE;
68	unsigned char newJump[100];
69	DWORD dwOrgEntryAddr = (DWORD)pOrgEntry;
70	dwOrgEntryAddr += 5; // add 5 for 5 op-codes for jmp far
71	void *pNewFunc = &EmptySetUnhandledExceptionFilter;
72	DWORD dwNewEntryAddr = (DWORD)pNewFunc;
73	DWORD dwRelativeAddr = dwNewEntryAddr - dwOrgEntryAddr;
74
75	newJump[0] = 0xE9;  // JMP absolute
76	memcpy(&newJump[1], &dwRelativeAddr, sizeof(pNewFunc));
77	SIZE_T bytesWritten;
78	BOOL bRet = WriteProcessMemory(GetCurrentProcess(),
79		pOrgEntry, newJump, sizeof(pNewFunc) + 1, &bytesWritten);
80	return bRet;
81}
82
83class CrashHandler
84{
85public:
86	CrashHandler()
87	{
88	//	SetErrorMode(SEM_FAILCRITICALERRORS);
89		SetUnhandledExceptionFilter((LPTOP_LEVEL_EXCEPTION_FILTER)CustomCrashHandledExceptionFilter);
90		_purecall_handler old_pure_handle;
91		old_pure_handle = _set_purecall_handler(myPurecallHandler);
92		_invalid_parameter_handler oldHandler;
93		oldHandler = _set_invalid_parameter_handler(myInvalidParameterHandler);
94		HookSetUnhandledExceptionFilter();
95	}
96};
97#else
98class CrashHandler
99{
100public:
101	CrashHandler()
102	{
103		assert(false);
104	}
105};
106#endif