ref: 91fdb62ad0c4597f645c3357ea942cadfea188ab
dir: /sys/src/ape/lib/ap/arm64/_seek.c/
extern long __SEEK(long long*, int, long long, int);
long long
_SEEK(int fd, long long o, int p)
{
long long l;
if(__SEEK(&l, fd, o, p) < 0)
l = -1;
return l;
}