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Gabriel

Linking errors for model DLL using SystemC DLL

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Hi all,

I'm trying to create a DLL for a simple SystemC model using Microsoft Visual C++ 2019.

After building SystemC DLL (DebugDLL) and following MS doc to create a DLL, I'm having linking errors like:

1>   Creating library <path>\SimpleLib\Debug\SimpleLib.lib and object <path>\simple\SimpleLib\Debug\SimpleLib.exp
1>SimpleLib.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall sc_core::sc_module_name::~sc_module_name(void)" (__imp_??1sc_module_name@sc_core@@QAE@XZ) referenced in function "public: __thiscall myclass::myclass(class sc_core::sc_module_name)" (??0myclass@@QAE@Vsc_module_name@sc_core@@@Z)
1>SimpleLib.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall sc_core::sc_simcontext::sc_simcontext(void)" (__imp_??0sc_simcontext@sc_core@@QAE@XZ) referenced in function "class sc_core::sc_simcontext * __cdecl sc_core::sc_get_curr_simcontext(void)" (?sc_get_curr_simcontext@sc_core@@YAPAVsc_simcontext@1@XZ)

(attached complete log)

What could be the problem?

 

The code is the one from the post link:
 

// SimpleLib.h

#pragma once

#ifdef SIMPLELIB_EXPORTS
#define SIMPLELIB_API   __declspec(dllexport)
#else
#define SIMPLELIB_API   __declspec(dllimport)
#endif

#include <systemc.h>

class SIMPLELIB_API myclass : public sc_core::sc_module
{
public:
    myclass(sc_core::sc_module_name name);
    void display();

};

 

//SimpleLib.cpp
#include "pch.h" // use stdafx.h in Visual Studio 2017 and earlier
#include "SimpleLib.h"

myclass::myclass(sc_core::sc_module_name name) : sc_core::sc_module(name)
{
    std::cout << "Inside cons\n";
}
void myclass::display()
{
    std::cout << "Calling display\n";
}

Configuration of the SimpleLib project was done also following INSTALL (Building against a SystemC DLL):

  C/C++ -> General -> Additional Include Directories is set to: <my_path>\systemc-2.3.3\src

  Added SC_WIN_DLL to: C/C++ -> Preprocessor -> Preprocessor Definitions

  Linker -> General -> Additional Library Directories is set to:  <my_path>\systemc-2.3.3\msvc10\SystemC\DebugDLL

log.txt

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