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POMixed-mode C++/CLI DLL throws exception on exit
 

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    <p>I am having a problem with a C++/CLI mixed mode DLL that I created. It is throwing an exception when unloading as the .NET application that uses it exits. After <code>DLL_PROCESS_DETACH</code> is executed, the DLL does runtime clean-up using automatically registered <code>atexit() / __onexit()</code> functions and throws the following exception:</p> <pre><code>Unhandled exception at 0x752bb9bc (KernelBase.dll) in psstestm.exe: 0xC0020001: The string binding is invalid. </code></pre> <p>I've traced the problem to an <code>atexit()</code> call which is registered by a static boost exception object <code>get_static_exception_object()</code>.</p> <pre><code> 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)* </code></pre> <p>I am using boost_1_47 statically linked for the most part except boost::thread which is dynamically linked to avoid loaderlock. I've also tried dynamically linking all of boost which didn't help. Also all of the boost includes are surrounded by <code>#pragma unmanaged</code> blocks.</p> <p><strong>I'm hoping someone has had a similar problem or knows of a solution?</strong></p> <p>Thanks, Mark</p> <p><em>Here is the call stack just before the exception occurs:</em></p> <pre><code>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 </code></pre>
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