Esempio libreria eseguibile

FIle library.c:

// library.c
#include <stdio.h>
#include <stdlib.h>

void foo(int x) {
    printf("foo(%d)\n", x);
}

int main(int argc, char **argv) {
    if (argc != 2) {
        fprintf(stderr, "USAGE: %s n\n", argv[0]);
        exit(1);
    }
    foo(atoi(argv[1]));
    return 0;
}

Credits:

• http://marklodato.github.io/2009/10/03/executable-shared-libraries.html
• https://unix.stackexchange.com/questions/223385/why-and-how-are-some-shared-libraries-runnable-as-though-they-are-executables