--- /dev/null
+++ libmalloc/libmalloc-140.1.1/src/platform.h
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2015 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#ifndef __PLATFORM_H
+#define __PLATFORM_H
+
+#if TARGET_OS_EMBEDDED
+#define MALLOC_TARGET_IOS 1
+#else // MALLOC_TARGET_IOS
+#define MALLOC_TARGET_IOS 0
+#endif // MALLOC_TARGET_IOS
+
+#ifdef __LP64__
+#define MALLOC_TARGET_64BIT 1
+#else // __LP64__
+#define MALLOC_TARGET_64BIT 0
+#endif
+
+// <rdar://problem/12596555>
+#if MALLOC_TARGET_IOS
+# define CONFIG_MADVISE_PRESSURE_RELIEF 0
+#else // MALLOC_TARGET_IOS
+# define CONFIG_MADVISE_PRESSURE_RELIEF 1
+#endif // MALLOC_TARGET_IOS
+
+// <rdar://problem/12596555>
+#if MALLOC_TARGET_IOS
+# define CONFIG_RECIRC_DEPOT 0
+# define CONFIG_AGGRESSIVE_MADVISE 1
+#else // MALLOC_TARGET_IOS
+# define CONFIG_RECIRC_DEPOT 1
+# define CONFIG_AGGRESSIVE_MADVISE 0
+#endif // MALLOC_TARGET_IOS
+
+// <rdar://problem/10397726>
+#define CONFIG_RELAXED_INVARIANT_CHECKS 1
+
+// <rdar://problem/19818071>
+#define CONFIG_MADVISE_STYLE MADV_FREE_REUSABLE
+
+// <rdar://problem/13807682>
+#if TARGET_OS_SIMULATOR
+#define CONFIG_OS_LOCK_HANDOFF 1
+#elif MALLOC_TARGET_IOS
+#define CONFIG_OS_LOCK_UNFAIR 1
+#else // MALLOC_TARGET_IOS
+#define CONFIG_OS_LOCK_UNFAIR 1
+#endif // MALLOC_TARGET_IOS
+
+#if MALLOC_TARGET_64BIT
+#define CONFIG_NANOZONE 1
+#define CONFIG_ASLR_INTERNAL 0
+#else // MALLOC_TARGET_64BIT
+#define CONFIG_NANOZONE 0
+#define CONFIG_ASLR_INTERNAL 1
+#endif // MALLOC_TARGET_64BIT
+
+// enable nano checking for corrupt free list
+#define NANO_FREE_DEQUEUE_DILIGENCE 1
+
+// This governs a last-free cache of 1 that bypasses the free-list for each region size
+#define CONFIG_TINY_CACHE 1
+#define CONFIG_SMALL_CACHE 1
+
+// The large last-free cache (aka. death row cache)
+#if MALLOC_TARGET_IOS
+#define CONFIG_LARGE_CACHE 0
+#else
+#define CONFIG_LARGE_CACHE 1
+#endif
+
+// <rdar://problem/26823590> compile-time MALLOC_SMALL cut-off size
+#if MALLOC_TARGET_IOS
+#define CONFIG_SMALL_CUTTOFF_127KB 0
+#else
+#define CONFIG_SMALL_CUTTOFF_127KB 1
+#endif // MALLOC_TARGET_IOS
+
+// memory resource exception handling
+#if MALLOC_TARGET_IOS || TARGET_OS_SIMULATOR
+#define ENABLE_MEMORY_RESOURCE_EXCEPTION_HANDLING 0
+#else
+#define ENABLE_MEMORY_RESOURCE_EXCEPTION_HANDLING 1
+#endif
+
+// presence of commpage memsize
+#define CONFIG_HAS_COMMPAGE_MEMSIZE 1
+
+// presence of commpage number of cpu count
+#define CONFIG_HAS_COMMPAGE_NCPUS 1
+
+#endif // __PLATFORM_H