-#ifdef __GNUC__
-static int rdrand(unsigned *x)
-{
- int i, rc;
- unsigned _t;
-
- i = 16;
- __asm__ ("" : "=g" (_t));
- __asm__ ("0: rdrand %2; jc 1f; decl %1; jnz 0b\n"
- "mov $-1, %0; jmp 9f\n"
- "1: movl %2, (%3); xorl %0, %0\n"
- "9:"
- : "=r" (rc), "+r" (i), "+r" (_t)
- : "r" (x)
- : "cc");
- return (rc);
-}
-#endif
-