--- /dev/null
+++ libmalloc/libmalloc-657.80.3/private/stack_logging.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 1999-2007 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 _STACK_LOGGING_H_
+#define _STACK_LOGGING_H_
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <malloc/malloc.h>
+#include <mach/boolean.h>
+#include <mach/mach_types.h>
+#include <mach/vm_statistics.h>
+#include <sys/cdefs.h>
+#include <os/availability.h>
+
+
+/*********	MallocStackLogging permanent SPIs  ************/
+
+#define stack_logging_type_free		0
+#define stack_logging_type_generic	1	/* anything that is not allocation/deallocation */
+#define stack_logging_type_alloc	2	/* malloc, realloc, etc... */
+#define stack_logging_type_dealloc	4	/* free, realloc, etc... */
+#define stack_logging_type_vm_allocate  16      /* vm_allocate or mmap */
+    /* NOTE: the stack_logging_type_vm_allocate type also contains
+     * the VM region's user_tag in the top byte, so it is not valid to check
+     * type == stack_logging_type_vm_allocate. The user_tag can be accessed
+     * using VM_GET_FLAGS_ALIAS */
+#define stack_logging_type_vm_deallocate  32	/* vm_deallocate or munmap */
+#define stack_logging_type_mapped_file_or_shared_mem	128
+
+// The valid flags include those from VM_FLAGS_ALIAS_MASK, which give the user_tag of allocated VM regions.
+#define stack_logging_valid_type_flags ( \
+stack_logging_type_generic | \
+stack_logging_type_alloc | \
+stack_logging_type_dealloc | \
+stack_logging_type_vm_allocate | \
+stack_logging_type_vm_deallocate | \
+stack_logging_type_mapped_file_or_shared_mem | \
+VM_FLAGS_ALIAS_MASK);
+
+// Following flags are absorbed by stack_logging_log_stack()
+#define	stack_logging_flag_zone		8	/* NSZoneMalloc, etc... */
+#define stack_logging_flag_cleared	64	/* for NewEmptyHandle */
+
+typedef void(malloc_logger_t)(uint32_t type,
+							  uintptr_t arg1,
+							  uintptr_t arg2,
+							  uintptr_t arg3,
+							  uintptr_t result,
+							  uint32_t num_hot_frames_to_skip);
+extern malloc_logger_t *malloc_logger;
+
+/*
+ * Load the MallocStackLogging library and register it with libmalloc
+ */
+boolean_t malloc_register_stack_logger(void);
+
+
+/*********	MallocStackLogging deprecated SPIs  ************
+ *
+ * Everything here should be considered deprecated and slated for being deleted.
+ * Move over to the equivilant in MallocStackLogging.h
+ */
+
+#define STACK_LOGGING_MAX_STACK_SIZE 512
+
+#define STACK_LOGGING_VM_USER_TAG(flags) (((flags) & VM_FLAGS_ALIAS_MASK) >> 24)
+
+typedef enum {
+	stack_logging_mode_none = 0,
+	stack_logging_mode_all,
+	stack_logging_mode_malloc,
+	stack_logging_mode_vm,
+	stack_logging_mode_lite,
+	stack_logging_mode_vmlite
+} stack_logging_mode_type;
+
+extern boolean_t turn_on_stack_logging(stack_logging_mode_type mode);
+extern void turn_off_stack_logging(void);
+
+/* constants for enabling/disabling malloc stack logging via the memorystatus_vm_pressure_send sysctl */
+#define	MEMORYSTATUS_ENABLE_MSL_MALLOC		0x10000000
+#define MEMORYSTATUS_ENABLE_MSL_VM			0x20000000
+#define MEMORYSTATUS_ENABLE_MSL_LITE		0x40000000
+#define MEMORYSTATUS_DISABLE_MSL			0x80000000
+#define MEMORYSTATUS_ENABLE_MSL_LITE_FULL	(MEMORYSTATUS_ENABLE_MSL_LITE | MEMORYSTATUS_ENABLE_MSL_VM | MEMORYSTATUS_ENABLE_MSL_MALLOC)
+#define MEMORYSTATUS_ENABLE_MSL_LITE_VM		(MEMORYSTATUS_ENABLE_MSL_LITE | MEMORYSTATUS_ENABLE_MSL_VM)
+
+#endif // _STACK_LOGGING_H_