--- libmalloc/libmalloc-283.60.1/src/nano_zone.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * 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 __NANO_ZONE_H
-#define __NANO_ZONE_H
-
-#if CONFIG_NANOZONE
-
-/*********************	DEFINITIONS	************************/
-
-#define MAX_RECORDER_BUFFER		256
-
-/*************          nanozone address field layout        ******************/
-
-#if defined(__x86_64)
-#define NANO_MAG_BITS			6
-#define NANO_BAND_BITS			17
-#define NANO_SLOT_BITS			4
-#define NANO_OFFSET_BITS		17
-
-#else
-#error Unknown Architecture
-#endif
-
-// clang-format really dislikes the bitfields here
-// clang-format off
-#if defined(__BIG_ENDIAN__)
-struct nano_blk_addr_s {
-    uint64_t
-	nano_signature:NANOZONE_SIGNATURE_BITS,	// the address range devoted to us.
-	nano_mag_index:NANO_MAG_BITS,		// the core that allocated this block
-	nano_band:NANO_BAND_BITS,
-	nano_slot:NANO_SLOT_BITS,		// bucket of homogenous quanta-multiple blocks
-	nano_offset:NANO_OFFSET_BITS;		// locates the block
-};
-#else
-// least significant bits declared first
-struct nano_blk_addr_s {
-    uint64_t
-	nano_offset:NANO_OFFSET_BITS,		// locates the block
-	nano_slot:NANO_SLOT_BITS,		// bucket of homogenous quanta-multiple blocks
-	nano_band:NANO_BAND_BITS,
-	nano_mag_index:NANO_MAG_BITS,		// the core that allocated this block
-	nano_signature:NANOZONE_SIGNATURE_BITS;	// the address range devoted to us.
-};
-#endif
-// clang-format on
-
-typedef union  {
-    uint64_t			addr;
-    struct nano_blk_addr_s	fields;
-} nano_blk_addr_t;
-
-#define SLOT_IN_BAND_SIZE 	(1 << NANO_OFFSET_BITS)
-#define SLOT_KEY_LIMIT 		(1 << NANO_SLOT_BITS) /* Must track nano_slot width */
-#define BAND_SIZE 		(1 << (NANO_SLOT_BITS + NANO_OFFSET_BITS)) /*  == Number of bytes covered by a page table entry */
-#define NANO_MAG_SIZE 		(1 << NANO_MAG_BITS)
-#define NANO_SLOT_SIZE 		(1 << NANO_SLOT_BITS)
-
-#ifdef __INTERNAL_H
-
-/****************************** zone itself ***********************************/
-
-/*
- * Note that objects whose adddress are held in pointers here must be pursued
- * individually in the nano_in_use_enumeration() routines.
- */
-
-typedef struct chained_block_s {
-    uintptr_t			double_free_guard;
-    struct chained_block_s	*next;
-} *chained_block_t;
-
-typedef struct nano_meta_s {
-    OSQueueHead			slot_LIFO MALLOC_NANO_CACHE_ALIGN;
-    unsigned int		slot_madvised_log_page_count;
-    volatile uintptr_t		slot_current_base_addr;
-    volatile uintptr_t		slot_limit_addr;
-    volatile size_t		slot_objects_mapped;
-    volatile size_t		slot_objects_skipped;
-    bitarray_t			slot_madvised_pages;
-    // position on cache line distinct from that of slot_LIFO
-    volatile uintptr_t		slot_bump_addr MALLOC_NANO_CACHE_ALIGN;
-    volatile boolean_t		slot_exhausted;
-    unsigned int		slot_bytes;
-    unsigned int		slot_objects;
-} *nano_meta_admin_t;
-
-// vm_allocate()'d, so page-aligned to begin with.
-typedef struct nanozone_s {
-    // first page will be given read-only protection
-    malloc_zone_t		basic_zone;
-    uint8_t			pad[PAGE_MAX_SIZE - sizeof(malloc_zone_t)];
-
-    // remainder of structure is R/W (contains no function pointers)
-    // page-aligned
-    // max: NANO_MAG_SIZE cores x NANO_SLOT_SIZE slots for nano blocks {16 .. 256}
-    struct nano_meta_s		meta_data[NANO_MAG_SIZE][NANO_SLOT_SIZE];
-    _malloc_lock_s			band_resupply_lock[NANO_MAG_SIZE];
-    uintptr_t           band_max_mapped_baseaddr[NANO_MAG_SIZE];
-    size_t			core_mapped_size[NANO_MAG_SIZE];
-
-    unsigned			debug_flags;
-
-    /* security cookie */
-    uintptr_t			cookie;
-
-    /*
-     * The nano zone constructed by create_nano_zone() would like to hand off tiny, small, and large
-     * allocations to the default scalable zone. Record the latter as the "helper" zone here.
-     */
-    malloc_zone_t		*helper_zone;
-} nanozone_t;
-
-#define NANOZONE_PAGED_SIZE	((sizeof(nanozone_t) + vm_page_size - 1) & ~ (vm_page_size - 1))
-
-#endif // __INTERNAL_H
-
-#endif // CONFIG_NANOZONE
-
-#endif // __NANO_ZONE_H