MAP_ANON
MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED)
MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED) {
#if !defined(MAP_ANON) || !defined(HAVE_MMAP)
#if defined(MAP_ANON) && defined(HAVE_MMAP)
MAP_ANON | MAP_PRIVATE | MAP_NOCORE,
MAP_ANON | MAP_PRIVATE,
#if defined(MAP_ANON) && defined(HAVE_MMAP)
#if !defined(MAP_ANON) || !defined(HAVE_MMAP)
# if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
# define MAP_ANONYMOUS MAP_ANON
MAP_ANON | MAP_PRIVATE | (f), -1, 0)
MAP_ANON | MAP_PRIVATE | (f), -1, 0)
MAP_ANON | MAP_PRIVATE | (f), -1, 0)
PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE | MAP_ANON, -1, 0);
MAP_SHARED | MAP_ANON, -1, 0);