How to run c program with .so file

Question

I have the Go program:

package main

import "C"

//export Getint

func Getint() int {

        return  2

}

func main() {}

and I have generated the .so file with the name t.so and header filet.h`

Now I would like to use the above function in my C program.

So had code but I am not knowing how to execute it.

#include <stdio.h>

#include <t.h>

int main()

{

int a;

a=Getint();

printf("number : %d",a);

return 0;

}

When I execute it using the below command:

gcc c.c t.so

It generates the a.out file

At the time of running the a.out with the command ./a.out it gives an error:

./a.out

Error while loading shared libraries: 

t.so: can not open shared object file: no such file or directory exists.

So I tried with the command:

gcc -c c.c -l t.so

It generates a c.o file and it is not executable.

Answer 1

Most probably the loader cannot find a library. Try to put this path to a directory where this library is located to LD_LIBRARY_PATH before running your binary.

export LD_LIBRARY_PATH=/path/to/my/library

./a.out

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