diff --git a/mac/memory_mac.c b/mac/memory_mac.c
index 3f5f714c..949b0ea6 100644
--- a/mac/memory_mac.c
+++ b/mac/memory_mac.c
@@ -4,8 +4,9 @@
  * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
  * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
  * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
- * Copyright 2016-2017 XMRig       <support@xmrig.com>
- *
+ * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2019 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -74,3 +75,21 @@ void persistent_memory_free() {
         _mm_free(persistent_memory);
     }
 }
+
+
+void *allocate_executable_memory(size_t size)
+{
+    return mmap(0, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANON, -1, 0);
+}
+
+
+void protect_executable_memory(void *p, size_t size)
+{
+    mprotect(p, size, PROT_READ | PROT_EXEC);
+}
+
+
+void flush_instruction_cache(void *p, size_t size)
+{
+    __builtin___clear_cache((char*) p, (char*)(p) + size);
+}
diff --git a/unix/memory_unix.c b/unix/memory_unix.c
index e6775add..8954aebe 100644
--- a/unix/memory_unix.c
+++ b/unix/memory_unix.c
@@ -78,11 +78,7 @@ void persistent_memory_free() {
 
 void *allocate_executable_memory(size_t size)
 {
-#   if defined(__APPLE__)
-    return mmap(0, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANON, -1, 0);
-#   else
     return mmap(0, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-#   endif
 }