混合模式C++/CLI DLL在退出时抛出异常

Question

我遇到了我创建的C++/CLI混合模式DLL的问题.卸载时抛出异常,因为使用它的.NET应用程序退出.在DLL_PROCESS_DETACH执行之后,DLL使用自动注册的atexit() / __onexit()函数执行运行时清理并抛出以下异常:

Unhandled exception at 0x752bb9bc (KernelBase.dll) in psstestm.exe: 
0xC0020001: The string binding is invalid.

我已经将问题跟踪到一个atexit()由静态boost异常对象注册的调用get_static_exception_object().

    function_to_call    0x0f560410 _t2m@???__Fep@?1???$get_static_exception_object@Ubad_exception_@exception_detail@boost@@@exception_detail@boost@@YA?AVexception_ptr@1@XZ@YAXXZ@?A0x0a546e27@@YAXXZ   void (void)*

我使用boost_1_47大部分静态链接,除了boost :: thread,动态链接以避免加载器锁.我也尝试动态链接所有的助手,这没有帮助.所有的升压包括都被#pragma unmanaged块包围.

我希望有人有类似的问题或知道解决方案？

谢谢,马克

这是异常发生之前的调用堆栈:

psscorem.dll!_CRT_INIT(void * hDllHandle=0x0f4b0000, unsigned long dwReason=0, void * lpreserved=0x00000001)  Line 413  C
psscorem.dll!__DllMainCRTStartup(void * hDllHandle=0x0f4b0000, unsigned long dwReason=0, void * lpreserved=0x00000001)  Line 526 + 0x11 bytes   C
psscorem.dll!_DllMainCRTStartup(void * hDllHandle=0x0f4b0000, unsigned long dwReason=0, void * lpreserved=0x00000001)  Line 476 + 0x11 bytes    C
mscoreei.dll!__CorDllMain@12()  + 0xde bytes    
mscoree.dll!_ShellShim__CorDllMain@12()  + 0xad bytes   
ntdll.dll!_LdrpCallInitRoutine@16()  + 0x14 bytes   
ntdll.dll!_LdrShutdownProcess@0()  + 0x141 bytes    
ntdll.dll!_RtlExitUserProcess@4()  + 0x74 bytes 
kernel32.dll!749479f5()     
mscoreei.dll!RuntimeDesc::ShutdownAllActiveRuntimes()  + 0xc8 bytes 
mscoreei.dll!CLRRuntimeHostInternalImpl::ShutdownAllRuntimesThenExit()  + 0x15 bytes    
clr.dll!EEPolicy::ExitProcessViaShim()  + 0x66 bytes    
clr.dll!SafeExitProcess()  + 0x99 bytes 
clr.dll!DisableRuntime()  - 0x1146bb bytes  
clr.dll!EEPolicy::HandleExitProcess()  + 0x57 bytes 
clr.dll!__CorExeMainInternal@0()  + 0x11c bytes 
clr.dll!__CorExeMain@0()  + 0x1c bytes  
mscoreei.dll!__CorExeMain@0()  + 0x38 bytes 
mscoree.dll!_ShellShim__CorExeMain@0()  + 0x227 bytes   
mscoree.dll!__CorExeMain_Exported@0()  + 0x8 bytes  
kernel32.dll!@BaseThreadInitThunk@12()  + 0x12 bytes    
ntdll.dll!___RtlUserThreadStart@8()  + 0x27 bytes   
ntdll.dll!__RtlUserThreadStart@8()  + 0x1b bytes    

Answer 1

我遇到了同样的问题,并设法将其跟踪到exception_ptr.hpp中的以下函数:

    template <class Exception>
    exception_ptr
    get_static_exception_object()
        {
        Exception ba;
        exception_detail::clone_impl<Exception> c(ba);
        c <<
            throw_function(BOOST_CURRENT_FUNCTION) <<
            throw_file(__FILE__) <<
            throw_line(__LINE__);
        static exception_ptr ep(shared_ptr<exception_detail::clone_base const>(new exception_detail::clone_impl<Exception>(c)));
        return ep;
        }

这里有问题的部分是:static exception_ptr ep(...

你可以删除静态,它应该工作:

    template <class Exception>
    exception_ptr
    get_static_exception_object()
        {
        Exception ba;
        exception_detail::clone_impl<Exception> c(ba);
        c <<
            throw_function(BOOST_CURRENT_FUNCTION) <<
            throw_file(__FILE__) <<
            throw_line(__LINE__);
        exception_ptr ep(shared_ptr<exception_detail::clone_base const>(new exception_detail::clone_impl<Exception>(c)));
        return ep;
        }

注意如何使用此函数,它将返回的静态变量分配给另一个静态变量.这个函数的整个实现看起来很可疑,可能我会就此提出一个关于提升支持的问题.

可能还有其他解决方法可以解决此问题.有关混合装配中静态变量的更多分析可以在这里找到:http://derevyanko.blogspot.com/2009/01/clic.html但是只能用俄语.