Linker Errors Porting from .NET 1.1 to 2.0

[Guest]

Hi Folks,

I got a Wrapper Dll around a native C++ static library. In .NET 1.1 this
worked fine. When moving to .NET 2.0 I get a couple of unresolved externals /
linker errors:

Error 16 error LNK2028: unresolved token (0A000007) "extern "C" void
__clrcall ___CxxCallUnwindDtor(void (__clrcall*)(void *),void *)"
(?___CxxCallUnwindDtor@@$$J0YMXP6MXPAX@Z0@Z) referenced in function "public:
virtual __thiscall std::logic_error::~logic_error(void)"
(??1logic_error@std@@$$FUAE@XZ) Parameter.obj
Error 17 error LNK2028: unresolved token (0A000007) "extern "C" void
__clrcall ___CxxCallUnwindDtor(void (__clrcall*)(void *),void *)"
(?___CxxCallUnwindDtor@@$$J0YMXP6MXPAX@Z0@Z) referenced in function "public:
__thiscall std::bad_alloc::bad_alloc(char const *)"
(??0bad_alloc@std@@$$FQAE@PBD@Z) Imagic.obj
Error 18 error LNK2028: unresolved token (0A000008) "extern "C" void
__clrcall ___CxxCallUnwindDtor(void (__clrcall*)(void *),void *)"
(?___CxxCallUnwindDtor@@$$J0YMXP6MXPAX@Z0@Z) referenced in function "public:
virtual __thiscall std::logic_error::~logic_error(void)"
(??1logic_error@std@@$$FUAE@XZ) Align2D.obj
Error 19 error LNK2028: unresolved token (0A000347) "void __clrcall `eh
vector destructor iterator'(void *,unsigned int,int,void (__clrcall*)(void
*))" (??_M@$$FYMXPAXIHP6MX0@Z@Z) referenced in function "public: virtual void
* __thiscall std::logic_error::`vector deleting destructor'(unsigned int)"
(??_Elogic_error@std@@$$FUAEPAXI@Z) Parameter.obj
Error 20 error LNK2028: unresolved token (0A0003D3) "void __clrcall `eh
vector destructor iterator'(void *,unsigned int,int,void (__clrcall*)(void
*))" (??_M@$$FYMXPAXIHP6MX0@Z@Z) referenced in function "public: virtual void
* __thiscall std::bad_alloc::`vector deleting destructor'(unsigned int)"
(??_Ebad_alloc@std@@$$FUAEPAXI@Z) Imagic.obj
Error 21 error LNK2028: unresolved token (0A000358) "void __clrcall `eh
vector destructor iterator'(void *,unsigned int,int,void (__clrcall*)(void
*))" (??_M@$$FYMXPAXIHP6MX0@Z@Z) referenced in function "public: virtual void
* __thiscall std::logic_error::`vector deleting destructor'(unsigned int)"
(??_Elogic_error@std@@$$FUAEPAXI@Z) Align2D.obj
Error 22 error LNK2001: unresolved external symbol "?.cctor@@$$FYMXXZ"
(?.cctor@@$$FYMXXZ) Align2D.obj
Error 23 error LNK2001: unresolved external symbol "?.cctor@@$$FYMXXZ"
(?.cctor@@$$FYMXXZ) AssemblyInfo.obj
Error 24 error LNK2001: unresolved external symbol "?.cctor@@$$FYMXXZ"
(?.cctor@@$$FYMXXZ) Imagic.obj
Error 25 error LNK2001: unresolved external symbol "?.cctor@@$$FYMXXZ"
(?.cctor@@$$FYMXXZ) Parameter.obj
Error 26 error LNK2019: unresolved external symbol "extern "C" void
__clrcall ___CxxCallUnwindDtor(void (__clrcall*)(void *),void *)"
(?___CxxCallUnwindDtor@@$$J0YMXP6MXPAX@Z0@Z) referenced in function "public:
virtual __thiscall std::logic_error::~logic_error(void)"
(??1logic_error@std@@$$FUAE@XZ) Align2D.obj
Error 27 error LNK2001: unresolved external symbol "extern "C" void
__clrcall ___CxxCallUnwindDtor(void (__clrcall*)(void *),void *)"
(?___CxxCallUnwindDtor@@$$J0YMXP6MXPAX@Z0@Z) Imagic.obj
Error 28 error LNK2001: unresolved external symbol "extern "C" void
__clrcall ___CxxCallUnwindDtor(void (__clrcall*)(void *),void *)"
(?___CxxCallUnwindDtor@@$$J0YMXP6MXPAX@Z0@Z) Parameter.obj
Error 29 error LNK2019: unresolved external symbol "void __clrcall `eh
vector destructor iterator'(void *,unsigned int,int,void (__clrcall*)(void
*))" (??_M@$$FYMXPAXIHP6MX0@Z@Z) referenced in function "public: virtual void
* __thiscall std::logic_error::`vector deleting destructor'(unsigned int)"
(??_Elogic_error@std@@$$FUAEPAXI@Z) Align2D.obj
Error 30 error LNK2001: unresolved external symbol "void __clrcall `eh
vector destructor iterator'(void *,unsigned int,int,void (__clrcall*)(void
*))" (??_M@$$FYMXPAXIHP6MX0@Z@Z) Imagic.obj
Error 31 error LNK2001: unresolved external symbol "void __clrcall `eh
vector destructor iterator'(void *,unsigned int,int,void (__clrcall*)(void
*))" (??_M@$$FYMXPAXIHP6MX0@Z@Z) Parameter.obj
Error 32 fatal error LNK1120: 9 unresolved externals Debug\empDll.dll

In my .NET 1.1 Project I had to make the following Linker Settings to build
the DLL:

1.) Additional Dependencies: mscoree.lib msvcrt.lib (or msvcrtd.lib for
debug version) mystaticlib.lib

2.) Ignore Specific Library: nochkclr.obj

3.) Force Symbol Reference: __DllMainCRTStartup@12

In my Wrapper Classes I had to add the following:

#using <mscorlib.dll>

using namespace System;
using namespace System::Runtime::InteropServices;

This does not work any longer with the new Visual Studio and the new .NET
Framework.

The only article that I was able to find on this subject:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnvs05/html/TransGuide.asp

Doesn´t mention Linker settings at all.

Could anybody please help me or tell me where to go for further reading?
Thanks in Advance for your efforts.

Chucker

 

[Guest]

I am having this same problem right now. After reading the article that you
mentioned, I have a feeling that these linker errors have something to do
with the new destructor semantics in the new version of managed C++. I
decided to try to follow the translation algorithm in section 2.4.6:

1. If a destructor is present, rewrite that to be the class finalizer.
2. If a Dispose() method is present, rewrite that into the class
destructor.
3. If a destructor is present but there is no Dispose() method, retain
the destructor while carrying out item (1).

However, I can't figure out how to perform this algorithm while compiling
with /clrldSyntax. For each of these three cases, what should the header
file and the .cpp file look like?

Also, I am starting to think that I should port my V1 code to V2, but I am
afraid to undertake this task if it is not going to fix this problem. I
heard that there is supposed to be a source to source translation tool
(mscfront). Does anyone know if this will be released soon?

Thanks for the help.

 

[Guest]

I got the solution from a different community (codeproject) and wanted to
share it with you.

Did you try adding msvcmrt.lib to the Additional Dependencies section?

Regards
Senthil

This resolved my problems! (Use msvcmrtd.lib for a Debug Version)

Cheers

Chucker

 

[Guest]

Thanks Chucker. This solved my problem!