gdb/testsuite/gdb.base/interrupt.c

#include <errno.h>
#include <stdio.h>
int
main ()
{
  char x;
  int nbytes;
#ifdef usestubs
  set_debug_traps();
  breakpoint();
#endif
  printf ("talk to me baby\n");
  while (1)
    {
      nbytes = read (0, &x, 1);
      if (nbytes < 0)
	{
#ifdef EINTR
	  if (errno != EINTR)
#endif
	    perror ("");
	}
      else if (nbytes == 0)
	{
	  printf ("end of file\n");
	  exit (0);
	}
      else
	write (1, &x, 1);
    }
}

int
func1 ()
{
  return 4;
}