应用程序退出（无异常）当引用64位dll从C＃ [英] application exits (no Exception) when referencing 64bit dll from C#
问题描述
我编译了lzo2.dll 64位元，现在希望在C＃程序中使用它：
I've compiled lzo2.dll 64 bit and now looking to use it in a C# program:
我使用以下类来测试（类似的代码适用于32位lzo.dll）：
I'm using the following class to test (similar code works for 32bit lzo.dll):
[DllImport("lzo2.dll")]
private static extern string lzo_version_string();
static void Main(string[] args)
{
try
{
if (Environment.Is64BitProcess)
{
Console.WriteLine(lzo_version_string());//application exits here, no exceptions caught
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
Console.ReadLine();
}
在指示应用程序崩溃的点，我拔出windbg，
At the point indicated the application crashes, so I pulled out windbg and here is the output of that: (sorry for verbosity)
0:000> !analyze -v
*******************************************************************************
* *
* Exception Analysis *
* *
*******************************************************************************
*** WARNING: Unable to verify checksum for C:\Windows\assembly\NativeImages_v4.0.30319_64\mscorlib\e0e5fbe72e8813a135fc878ff32b4bee\mscorlib.ni.dll
*** WARNING: Unable to verify checksum for Lzo64.exe
GetPageUrlData failed, server returned HTTP status 404
URL requested: http://watson.microsoft.com/StageOne/Lzo64_exe/1_0_0_0/4eccdc93/ntdll_dll/6_1_7601_17514/4ce7c8f9/80000003/000c40bf.htm?Retriage=1
FAULTING_IP:
ntdll!RtlReportCriticalFailure+2f
00000000`77a240bf cc int 3
EXCEPTION_RECORD: ffffffffffffffff -- (.exr 0xffffffffffffffff)
ExceptionAddress: 0000000077a240bf (ntdll!RtlReportCriticalFailure+0x000000000000002f)
ExceptionCode: 80000003 (Break instruction exception)
ExceptionFlags: 00000000
NumberParameters: 1
Parameter[0]: 0000000000000000
FAULTING_THREAD: 0000000000001c90
PROCESS_NAME: Lzo64.exe
ERROR_CODE: (NTSTATUS) 0x80000003 - {EXCEPTION} Breakpoint A breakpoint has been reached.
EXCEPTION_CODE: (HRESULT) 0x80000003 (2147483651) - One or more arguments are invalid
EXCEPTION_PARAMETER1: 0000000000000000
MOD_LIST: <ANALYSIS/>
NTGLOBALFLAG: 70
APPLICATION_VERIFIER_FLAGS: 0
MANAGED_STACK:
(TransitionMU)
000000000054E670 000007FEF1F3BF6C mscorlib_ni!System.StubHelpers.CSTRMarshaler.ClearNative(IntPtr)+0x3c
000000000054E730 000007FF00140319 Lzo64!DomainBoundILStubClass.IL_STUB_PInvoke()+0x14031a
000000000054E840 000007FF00140181 Lzo64!Lzo64.Program.Main(System.String[])+0x61
(TransitionUM)
MANAGED_STACK_COMMAND: _EFN_StackTrace
LAST_CONTROL_TRANSFER: from 0000000077a24736 to 0000000077a240bf
BUGCHECK_STR: APPLICATION_FAULT_WRONG_SYMBOLS_CALL
PRIMARY_PROBLEM_CLASS: WRONG_SYMBOLS_CALL
DEFAULT_BUCKET_ID: WRONG_SYMBOLS_CALL
STACK_TEXT:
00000000`0054e3d0 00000000`77a24736 : 00000000`00000002 00000000`00000023 00000000`0054e6a8 00000000`00000003 : ntdll!RtlReportCriticalFailure+0x2f
00000000`0054e4a0 00000000`77a25942 : 000007fe`f1533de8 000007fe`f1533de8 00000000`0054ea10 00000000`0054e8a8 : ntdll!RtlpReportHeapFailure+0x26
00000000`0054e4d0 00000000`77a275f4 : 00000000`005d0000 00000000`00000000 00000000`00000000 00000000`0064e560 : ntdll!RtlpHeapHandleError+0x12
00000000`0054e500 00000000`779cdcb7 : 000007fe`faab7b68 00000000`005d0000 000007fe`faab7b68 000007fe`f2d85000 : ntdll!RtlpLogHeapFailure+0xa4
00000000`0054e530 000007fe`fe3e8e56 : 00000000`0054e900 000007fe`faab7b68 00000000`f2734dd5 00000000`00000000 : ntdll! ?? ::FNODOBFM::`string'+0x10c7c
00000000`0054e5b0 000007fe`f27319c2 : 000007fe`faab7b68 0000a965`d9ebab11 000007fe`faab7b68 00000000`00000004 : ole32!CoTaskMemFree+0x36
00000000`0054e5e0 000007fe`f1f3bf6c : 000007fe`faab7b68 00000000`0054ea10 0000a965`d9ebab11 000007fe`f2dbd2c0 : clr!DoNDirectCallWorker+0x62
00000000`0054e670 000007ff`00140319 : 00000000`00000000 000007ff`000240f0 00000000`0054ea10 00000000`0054e8a8 : mscorlib_ni+0xa8bf6c
00000000`0054e730 000007ff`00140181 : 00000000`00000001 00000000`0054eaa0 00000000`0054e900 000007fe`f2734dd5 : 0x7ff`00140319
00000000`0054e840 000007fe`f2759714 : 00000000`02c31a58 00000000`0054eaa0 00000000`0054e900 000007fe`f2734dd5 : 0x7ff`00140181
00000000`0054e8a0 000007fe`f2759829 : 000007ff`00024138 00000000`00000001 00000000`00000000 00000000`00000000 : clr!CallDescrWorker+0x84
00000000`0054e8f0 000007fe`f27598a5 : 00000000`0054ea08 00000000`00000001 00000000`0054ea10 00000000`0054ebf0 : clr!CallDescrWorkerWithHandler+0xa9
00000000`0054e970 000007fe`f28f6651 : 00000000`00000000 00000000`0054ebf8 00000000`00000001 000007fe`f14b1a32 : clr!MethodDesc::CallDescr+0x2a1
00000000`0054eba0 000007fe`f28f6788 : 00000000`0064e560 00000000`0064e560 00000000`00000000 00000000`00000000 : clr!ClassLoader::RunMain+0x228
00000000`0054edf0 000007fe`f28f653e : 00000000`0054f3f0 00000000`00000200 00000000`0065afa0 00000000`00000200 : clr!Assembly::ExecuteMainMethod+0xac
00000000`0054f0a0 000007fe`f2915e56 : 00000000`00000000 00000000`01280000 00000000`00000000 00000000`00000000 : clr!SystemDomain::ExecuteMainMethod+0x452
00000000`0054f650 000007fe`f2915d73 : 00000000`01280000 00000000`00000000 00000000`00000000 00000000`00000000 : clr!ExecuteEXE+0x43
00000000`0054f6b0 000007fe`f2906c6d : 00000000`0064e560 ffffffff`ffffffff 00000000`00000000 00000000`00000000 : clr!CorExeMainInternal+0xc4
00000000`0054f720 000007fe`f9d03309 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`0054f708 : clr!CorExeMain+0x15
00000000`0054f760 000007fe`f9e15b21 : 000007fe`f2906c58 000007fe`f9d032c0 00000000`00000000 00000000`00000000 : mscoreei!CorExeMain+0x41
00000000`0054f790 00000000`773f652d : 000007fe`f9d00000 00000000`00000000 00000000`00000000 00000000`00000000 : MSCOREE!CorExeMain_Exported+0x57
00000000`0054f7c0 00000000`7798c521 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : KERNEL32!BaseThreadInitThunk+0xd
00000000`0054f7f0 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ntdll!RtlUserThreadStart+0x1d
STACK_COMMAND: .cxr 0000000000000000 ; kb ; dt ntdll!LdrpLastDllInitializer BaseDllName ; dt ntdll!LdrpFailureData ; ~0s ; kb
FOLLOWUP_IP:
clr!DoNDirectCallWorker+62
000007fe`f27319c2 41c744240c01000000 mov dword ptr [r12+0Ch],1
SYMBOL_STACK_INDEX: 6
SYMBOL_NAME: clr!DoNDirectCallWorker+62
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: clr
IMAGE_NAME: clr.dll
DEBUG_FLR_IMAGE_TIMESTAMP: 4e1822f4
FAILURE_BUCKET_ID: WRONG_SYMBOLS_CALL_80000003_clr.dll!DoNDirectCallWorker
BUCKET_ID: X64_APPLICATION_FAULT_WRONG_SYMBOLS_CALL_clr!DoNDirectCallWorker+62
WATSON_STAGEONE_URL: http://watson.microsoft.com/StageOne/Lzo64_exe/1_0_0_0/4eccdc93/ntdll_dll/6_1_7601_17514/4ce7c8f9/80000003/000c40bf.htm?Retriage=1
Followup: MachineOwner
---------
我已经看过这个，但仍然无法确定甚至一个提示的问题。我相信它抱怨的符号，即使堆栈跟踪看起来像它有名字，从而提供一些意义。有人可能暗示可能是问题或指向下一步的方向？
I've had a look at this but still can't ascertain even a hint of the problem. I believe its complaining about the symbols even tho the stack trace looks like it does have names and thus provide some meaning. Can someone hint at what might be the issue or point in the direction to head next?
它在 CFF Explorer 和Dependency Walker。
It opens OK in CFF Explorer and Dependency Walker.
不似乎是问题lzo2.dll本身作为构建过程（lzotest.exe -mlzo COPYING）的一部分提供的测试应用程序。
There does not appear to be an issue with the lzo2.dll in itself as the test applications provided as part of the build process (lzotest.exe -mlzo COPYING) pass.
推荐答案
p>没有堆栈跟踪，但我可以猜到，你看到CoTaskMemFree（）在某处。这是pinvoke marshaller调用以释放函数返回的字符串缓冲区。问题是，字符串缓冲区没有被CoTaskMemAlloc（）分配。 Vista和Windows 7有一个更严格的内存管理器，他们不允许程序释放它没有分配的内存。它工作在XP上，它只是忽略了坏的缓冲区指针。
No stack trace but I can guess, you see CoTaskMemFree() on there somewhere. Which is what the pinvoke marshaller calls to release the string buffer that was returned by the function. Problem is, that string buffer wasn't allocated by CoTaskMemAlloc(). Vista and Windows 7 have a much stricter memory manager, they don't allow a program to release memory it didn't allocate. It works on XP, it simply ignores the bad buffer pointer.
返回字符串的C函数是一个内存管理问题。然而，它可能在这种特定情况下工作，它可能返回一个字符串文字，不需要被释放。你必须停止marshaller试图释放字符串，声明这样的函数：
C functions that return strings are a memory management problem. It is however likely to work in this specific case, it probably returns a string literal that doesn't need to be released. You have to stop the marshaller from trying to release the string, declare the function like this:
[DllImport("lzo2.dll")]
private static extern IntPtr lzo_version_string();
并使用它：
IntPtr strPtr = lzo_version_string();
string version = Marshal.PtrToStringAnsi(strPtr);
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