plugintest/dlopen/plugins/cgo/cgotest.go

package main

import "C"
import (
	"fmt"
	"log"
)

//export Add
func Add(a, b C.int) *C.char {
	return C.CString(fmt.Sprintf("Go plugin: %d", a+b))
}

func main() {
	log.Println("Main of cgotest")
}