Can Golang be packaged into a dll?

Can Golang be packaged into a dll?

Golang can compile a program into a DLL file. The specific method is as follows:

1. Golang needs to use gcc when compiling dll, so install MinGW first.

Windows 64-bit system should download the 64-bit version of MinGW: https://sourceforge.net/projects/mingw-w64/

2. After downloading, run mingw-w64-install.exe , complete the installation of MingGW.

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3. First write the golang program exportgo.go:

package main
import "C"
import "fmt"
//export PrintBye
func PrintBye() {
    fmt.Println("From DLL: Bye!")
}
//export Sum
func Sum(a int, b int) int {
    return a + b;
}
func main() {
    // Need a main function to make CGO compile package as C shared library
}

4. Compile it into a DLL file:

go build -buildmode=c-shared -o exportgo.dll exportgo.go

After compilation, we get two files exportgo.dll and exportgo.h.

5. Refer to the function definition in the exportgo.h file and write the C# file importgo.cs:

using System;
using System.Runtime.InteropServices;
namespace HelloWorld
{
    class Hello 
    {
        [DllImport("exportgo.dll", EntryPoint="PrintBye")]
        static extern void PrintBye();
        [DllImport("exportgo.dll", EntryPoint="Sum")]
        static extern int Sum(int a, int b);
        static void Main() 
        {
            Console.WriteLine("Hello World!");
            PrintBye();
            Console.WriteLine(Sum(33, 22));
        }

Compile the CS file to get exe

csc importgo.cs

Put the exe and dll in In the same directory, run.

>importgo.exe
Hello World!
From DLL: Bye!
55

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