Call function got crashed

[shallowclouds]

Examples are very simple functions, I wrote a simple function which use printf to print a message, but got crashed, is there anything else I should do?

The lib src:

#include "stdio.h"

void test_go() {
  printf("invoke test_go");
}

Compiled to lib:

gcc -shared testlib/biz.c -o testlib.so

Run with the following go src:

package main

import (
	"fmt"
	"io/ioutil"

	"github.com/Binject/universal"
)

func main() {
	var (
		libPath = "testlib.so"
		fName   = "test_go"
	)

	image, err := ioutil.ReadFile(libPath)
	if err != nil {
		panic(err)
	}

	loader, err := universal.NewLoader()
	if err != nil {
		panic(err)
	}

	lib, err := loader.LoadLibrary("main", &image)
	if err != nil {
		panic(err)
	}

	for k := range lib.Exports {
		fmt.Printf("exported function: %s\n", k)
	}

	addr, ok := lib.FindProc(fName)
	if ok {
		fmt.Printf("function address of %s: %x\n", fName, addr)
	} else {
		panic("function not found")
	}

	val, err := lib.Call(fName)
	if err != nil {
		panic(err)
	}

	fmt.Printf("returned value: %v\n", val)
}

But got a sad crash:

Go version: go version go1.17.1 linux/amd64

GCC version: gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)

System: WSL1, and ubuntu20.04 also fails.