#define streq(p, q) (strcmp((p), (q)) == 0)
int _fdt_check_header(const void *fdt);
-uint32_t _fdt_next_tag(const void *fdt, int startoffset, int *nextoffset);
const char *_fdt_find_string(const char *strtab, int tabsize, const char *s);
int _fdt_node_end_offset(void *fdt, int nodeoffset);