__MAP_NOREPLACE
__MAP_NOREPLACE | pool->mmap_flag);
ld->prot, flags | MAP_FIXED | __MAP_NOREPLACE, fd, foff);
#define MAP_WIRED __MAP_NOREPLACE
#define MAP_WIRED __MAP_NOREPLACE
MAP_PRIVATE|MAP_ANON|MAP_FIXED|__MAP_NOREPLACE, -1, 0));
if ((flags & __MAP_NOREPLACE) == 0)
if ((flags & __MAP_NOREPLACE) == 0)
if ((flags & (MAP_FIXED|__MAP_NOREPLACE)) == __MAP_NOREPLACE)