MAP_ANONYMOUS
#define MAP_ANON MAP_ANONYMOUS
# if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
# if !defined(MAP_ANONYMOUS) || !defined(EXEC_PAGESIZE)
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \
if ((flags & MAP_ANONYMOUS) != 0) {
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0) == NULL)
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0) == NULL)
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0) == NULL)
PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);