cpu_dump
if ((error = cpu_dump()) != 0)
int cpu_dump(void);
if ((error = cpu_dump()) != 0)
int cpu_dump(void);
if ((error = cpu_dump()) != 0)
if (!(error = cpu_dump())) {
int cpu_dump(void);
int cpu_dump(void);
error = cpu_dump();
int cpu_dump(void);
error = cpu_dump();
u_int cpu_dump(int (*)(dev_t, daddr_t, caddr_t, size_t), daddr_t *);
rc = cpu_dump(dump, &blkno);