CTF_MAGIC
static const ctf_header_t hdr = { { CTF_MAGIC, CTF_VERSION, 0 } };
hdr.cth_magic = CTF_MAGIC;
static const ctf_header_t hdr = { { CTF_MAGIC, CTF_VERSION, 0 } };
if (pp->ctp_magic != CTF_MAGIC)
hdr.ctf.ctp_magic == CTF_MAGIC) {