1#include "stdio_impl.h" 2#include "libc.h" 3 4static FILE *ofl_head; 5static volatile int ofl_lock[2]; 6 7FILE **__ofl_lock() 8{ 9 LOCK(ofl_lock); 10 return &ofl_head; 11} 12 13void __ofl_unlock() 14{ 15 UNLOCK(ofl_lock); 16} 17