--- /dev/null
+++ libmalloc/libmalloc-283.100.5/src/internal.h
@@ -0,0 +1,140 @@
+/*
+ * 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 __INTERNAL_H
+#define __INTERNAL_H
+
+#define __OS_EXPOSE_INTERNALS__ 1
+
+// Toggles for fixes for specific Radars. If we get enough of these, we
+// probably should create a separate header file for them.
+#define RDAR_48993662 1
+
+#include <Availability.h>
+#include <TargetConditionals.h>
+#include <_simple.h>
+#include <platform/string.h>
+#undef memcpy
+#define memcpy _platform_memmove
+#include <platform/compat.h>
+#include <assert.h>
+#include <crt_externs.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <libc.h>
+#include <libkern/OSAtomic.h>
+#include <limits.h>
+#include <mach-o/dyld.h>
+#include <mach-o/dyld_priv.h>
+#include <mach/mach.h>
+#include <mach/mach_init.h>
+#include <mach/mach_types.h>
+#include <mach/mach_vm.h>
+#include <mach/shared_region.h>
+#include <mach/thread_switch.h>
+#include <mach/vm_map.h>
+#include <mach/vm_page_size.h>
+#include <mach/vm_param.h>
+#include <mach/vm_statistics.h>
+#include <os/internal/internal_shared.h>
+#include <os/lock_private.h>
+#include <os/once_private.h>
+#include <os/overflow.h>
+#include <os/tsd.h>
+#include <paths.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/cdefs.h>
+#include <sys/mman.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/random.h>
+#include <sys/types.h>
+#include <sys/vmparam.h>
+#include <thread_stack_pcs.h>
+#include <unistd.h>
+#include <xlocale.h>
+
+#include "dtrace.h"
+#include "base.h"
+#include "trace.h"
+#include "platform.h"
+#include "debug.h"
+#include "locking.h"
+#include "bitarray.h"
+#include "malloc/malloc.h"
+#include "printf.h"
+#include "frozen_malloc.h"
+#include "legacy_malloc.h"
+#include "magazine_malloc.h"
+#include "malloc_common.h"
+#include "nano_malloc_common.h"
+#include "nano_malloc.h"
+#include "nanov2_malloc.h"
+#include "purgeable_malloc.h"
+#include "malloc_private.h"
+#include "thresholds.h"
+#include "vm.h"
+#include "magazine_rack.h"
+#include "magazine_zone.h"
+#include "nano_zone_common.h"
+#include "nano_zone.h"
+#include "nanov2_zone.h"
+#include "magazine_inline.h"
+#include "stack_logging.h"
+#include "malloc_implementation.h"
+
+MALLOC_NOEXPORT
+extern boolean_t malloc_tracing_enabled;
+
+MALLOC_NOEXPORT
+extern unsigned malloc_debug_flags;
+
+MALLOC_NOEXPORT MALLOC_NOINLINE
+void
+malloc_error_break(void);
+
+MALLOC_NOEXPORT MALLOC_NOINLINE MALLOC_USED
+int
+malloc_gdb_po_unsafe(void);
+
+/*
+  * Copies the malloc library's _malloc_msl_lite_hooks_t structure to a given
+  * location. Size is passed to allow the structure to  grow. Since this is
+  * a temporary arrangement, we don't need to worry about
+  * pointer authentication here or in the _malloc_msl_lite_hooks_t structure
+  * itself.
+  */
+struct _malloc_msl_lite_hooks_s;
+typedef void (*set_msl_lite_hooks_callout_t) (struct _malloc_msl_lite_hooks_s *hooksp, size_t size);
+void set_msl_lite_hooks(set_msl_lite_hooks_callout_t callout);
+
+
+#endif // __INTERNAL_H