ProfHeader
objp = (ProfObject *)(memp + ((ProfHeader *)memp)->size);
ProfHeader prof_hdr;
if (fread(&prof_hdr, sizeof (ProfHeader), 1, pfile) == 0) {
ProfHeader prof_hdr;
#define PROFHDR_SZ (CEIL(sizeof (ProfHeader), STRUCT_ALIGN))
#define HDR_FILLER (PROFHDR_SZ - sizeof (ProfHeader))