I want to create DLL in C and use it in Golang.
I used this tutorial to generate dll : helloWorld.h
#include<stdio.h>
void __stdcall __declspec(dllexport) hello();
helloWorld.c
#include<stdio.h>
#include "helloWorld.h"
__stdcall void hello()
{
printf("Hello World !!");
}
I used this in command Prompt to compile it
g++ -c helloWorld.c
g++ -shared -o helloWorld.dll helloWorld.o -Wl,--out-implib,libhelloWorld.a
I was able to use the generated dll in this C code , named as example.c :
#include<stdio.h>
#include "helloWorld.h"
int main()
{
hello();
}
and compile it using
g++ -c example.c
g++ -o example.exe example.o -L. -lhelloWorld
But while using the DLL in Golang , i am getting error , please help me
test.go
package main
/*
#cgo LDFLAGS: -L. -lhelloWorld
#include "helloWorld.h"
*/
import "C"
func main(){
C.hello()
}
Error :
# command-line-arguments
C:\Users\kumarmoh\AppData\Local\Temp\go-build544493490\b001\_x002.o: In function `_cgo_525f579e070a_Cfunc_hello':
/tmp/go-build/cgo-gcc-prolog:40: undefined reference to `hello'
collect2.exe: error: ld returned 1 exit status
Other info :
go version go1.11 windows/amd64
64-bit OS , x64-based processor , Windows 10
I tried creating dll in Visual studios and it gave me error as explained here .
