Filza 27.2 worse_query: public and developer builds
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/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
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*
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* Copyright (c) 2003-2010 Apple Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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#ifndef _CACHE_PATCHING_H_
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#define _CACHE_PATCHING_H_
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#include <stdint.h>
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//
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// MARK: --- V1 patching. This is for old caches, before Large/Split caches ---
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//
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struct dyld_cache_patch_info_v1
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{
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uint64_t patchTableArrayAddr; // (unslid) address of array for dyld_cache_image_patches for each image
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uint64_t patchTableArrayCount; // count of patch table entries
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uint64_t patchExportArrayAddr; // (unslid) address of array for patch exports for each image
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uint64_t patchExportArrayCount; // count of patch exports entries
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uint64_t patchLocationArrayAddr; // (unslid) address of array for patch locations for each patch
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uint64_t patchLocationArrayCount;// count of patch location entries
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uint64_t patchExportNamesAddr; // blob of strings of export names for patches
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uint64_t patchExportNamesSize; // size of string blob of export names for patches
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};
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struct dyld_cache_image_patches_v1
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{
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uint32_t patchExportsStartIndex;
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uint32_t patchExportsCount;
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};
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struct dyld_cache_patchable_export_v1
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{
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uint32_t cacheOffsetOfImpl;
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uint32_t patchLocationsStartIndex;
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uint32_t patchLocationsCount;
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uint32_t exportNameOffset;
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};
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struct dyld_cache_patchable_location_v1
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{
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uint32_t cacheOffset;
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uint64_t high7 : 7,
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addend : 5, // 0..31
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authenticated : 1,
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usesAddressDiversity : 1,
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key : 2,
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discriminator : 16;
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};
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//
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// MARK: --- V2 patching. This is for Large/Split caches and newer ---
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//
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struct dyld_cache_patch_info_v2
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{
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uint32_t patchTableVersion; // == 2
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uint32_t patchLocationVersion; // == 0 for now
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uint64_t patchTableArrayAddr; // (unslid) address of array for dyld_cache_image_patches_v2 for each image
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uint64_t patchTableArrayCount; // count of patch table entries
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uint64_t patchImageExportsArrayAddr; // (unslid) address of array for dyld_cache_image_export_v2 for each image
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uint64_t patchImageExportsArrayCount; // count of patch table entries
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uint64_t patchClientsArrayAddr; // (unslid) address of array for dyld_cache_image_clients_v2 for each image
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uint64_t patchClientsArrayCount; // count of patch clients entries
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uint64_t patchClientExportsArrayAddr; // (unslid) address of array for patch exports for each client image
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uint64_t patchClientExportsArrayCount; // count of patch exports entries
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uint64_t patchLocationArrayAddr; // (unslid) address of array for patch locations for each patch
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uint64_t patchLocationArrayCount; // count of patch location entries
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uint64_t patchExportNamesAddr; // blob of strings of export names for patches
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uint64_t patchExportNamesSize; // size of string blob of export names for patches
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};
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struct dyld_cache_image_patches_v2
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{
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uint32_t patchClientsStartIndex;
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uint32_t patchClientsCount;
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uint32_t patchExportsStartIndex; // Points to dyld_cache_image_export_v2[]
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uint32_t patchExportsCount;
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};
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struct dyld_cache_image_export_v2
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{
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uint32_t dylibOffsetOfImpl; // Offset from the dylib we used to find a dyld_cache_image_patches_v2
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uint32_t exportNameOffset : 28;
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uint32_t patchKind : 4; // One of DyldSharedCache::patchKind
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};
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struct dyld_cache_image_clients_v2
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{
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uint32_t clientDylibIndex;
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uint32_t patchExportsStartIndex; // Points to dyld_cache_patchable_export_v2[]
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uint32_t patchExportsCount;
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};
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struct dyld_cache_patchable_export_v2
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{
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uint32_t imageExportIndex; // Points to dyld_cache_image_export_v2
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uint32_t patchLocationsStartIndex; // Points to dyld_cache_patchable_location_v2[]
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uint32_t patchLocationsCount;
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};
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struct dyld_cache_patchable_location_v2
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{
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uint32_t dylibOffsetOfUse; // Offset from the dylib we used to get a dyld_cache_image_clients_v2
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uint32_t high7 : 7,
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addend : 5, // 0..31
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authenticated : 1,
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usesAddressDiversity : 1,
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key : 2,
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discriminator : 16;
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};
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//
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// MARK: --- V3 patching. This is V2 plus support for GOT combining ---
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//
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struct dyld_cache_patch_info_v3
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{
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struct dyld_cache_patch_info_v2 infoV2;
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// uint32_t patchTableVersion; // == 3
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// ... other fields from dyld_cache_patch_info_v2
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uint64_t gotClientsArrayAddr; // (unslid) address of array for dyld_cache_image_got_clients_v3 for each image
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uint64_t gotClientsArrayCount; // count of got clients entries. Should always match the patchTableArrayCount
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uint64_t gotClientExportsArrayAddr; // (unslid) address of array for patch exports for each GOT image
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uint64_t gotClientExportsArrayCount; // count of patch exports entries
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uint64_t gotLocationArrayAddr; // (unslid) address of array for patch locations for each GOT patch
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uint64_t gotLocationArrayCount; // count of patch location entries
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};
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struct dyld_cache_image_got_clients_v3
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{
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uint32_t patchExportsStartIndex; // Points to dyld_cache_patchable_export_v3[]
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uint32_t patchExportsCount;
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};
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struct dyld_cache_patchable_export_v3
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{
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uint32_t imageExportIndex; // Points to dyld_cache_image_export_v2
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uint32_t patchLocationsStartIndex; // Points to dyld_cache_patchable_location_v3[]
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uint32_t patchLocationsCount;
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};
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struct dyld_cache_patchable_location_v3
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{
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uint64_t cacheOffsetOfUse; // Offset from the cache header
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uint32_t high7 : 7,
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addend : 5, // 0..31
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authenticated : 1,
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usesAddressDiversity : 1,
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key : 2,
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discriminator : 16;
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};
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struct dyld_cache_patchable_location_v4
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{
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uint64_t dylibOffsetOfUse; // Offset from the cache header
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union {
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struct {
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uint32_t authenticated : 1, // == 1
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high7 : 7,
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isWeakImport : 1,
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addend : 5, // 0..31
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usesAddressDiversity : 1,
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keyIsD : 1, // B keys are not permitted. So this is just whether the A key is I or D (0 => I, 1 => D)
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discriminator : 16;
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} auth;
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struct {
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uint32_t authenticated : 1, // == 0
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high7 : 7,
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isWeakImport : 1,
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addend : 23;
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} regular;
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};
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};
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#endif /* _CACHE_PATCHING_H_ */
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