How to print to console (Linux) without the standard library (libc)

I'm not using the standard library, since my target x86 Linux distro is very limited.

#include <unistd.h>

void _start () {
      const char msg[] = "Hello world";
      write( STDOUT_FILENO, msg, sizeof( msg ) - 1 );
}

I want to print text to console, but I can't, is there any other way to do this. The code above wont work because it depends on standard library gcc Test.cpp -o Test -nostdlib