GoLang和CPP之间的交叉通信映射时出现内存错误

Question

I'm trying to pass a Unordered_Map from Cpp to GoLang. I have currently created a dll from GoLang which contains a method which accepts a Map as input and initialize it. My assumption is that in GoLang Map is passed as reference so I'm not returning anything.

    //GoLang CODE
    func InitializeMap(m map[*C.char]*C.char) { 
        ctr1 := C.CString("Anand")
        ctr2 := C.CString("1")
        m[ctr1] = ctr2   // Memory error is pointing at this line.
     }

         // CPP 
         std::unordered_map<char *,char *> mapInstance;
         InitializeMap(&mapInstance);

        // Header
        typedef void *GoMap;
        extern void InitializeMap(GoMap p0);

The error thrown is :

unexpected fault address 0x18dda4d0080 fatal error: fault [signal 0xc0000005 code=0x0 addr=0x18dda4d0080 pc=0x6de902e3]

Please Help me in right direction.