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--- /dev/null
+++ dyld/dyld-519.2.1/src/dyldAPIsInLibSystem.cpp
@@ -0,0 +1,2130 @@
+/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
+ *
+ * Copyright (c) 2004-2012 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@
+ */
+
+#include <stddef.h>
+#include <string.h>
+#include <malloc/malloc.h>
+#include <sys/mman.h>
+
+#include <crt_externs.h>
+#include <Availability.h>
+#include <vproc_priv.h>
+
+#include <dirent.h>
+#include <sys/stat.h>
+
+#include "mach-o/dyld_images.h"
+#include "mach-o/dyld.h"
+#include "mach-o/dyld_priv.h"
+#include "dyld_cache_format.h"
+
+#include "ImageLoader.h"
+#include "dyldLock.h"
+#include "start_glue.h"
+
+#include "../dyld3/APIs.h"
+#include "../dyld3/AllImages.h"
+
+
+// this was in dyld_priv.h but it is no longer exported
+extern "C" {
+ const struct dyld_all_image_infos* _dyld_get_all_image_infos() __attribute__((visibility("hidden")));
+}
+
+
+extern "C" int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
+extern "C" void __cxa_finalize(const void *dso);
+extern "C" void __cxa_finalize_ranges(const struct __cxa_range_t ranges[], int count);
+
+//
+// private interface between libSystem.dylib and dyld
+//
+extern "C" int _dyld_func_lookup(const char* dyld_func_name, void **address);
+
+
+extern bool gUseDyld3;
+
+#ifndef LC_VERSION_MIN_MACOSX
+ #define LC_VERSION_MIN_MACOSX 0x24
+ struct version_min_command {
+ uint32_t cmd; /* LC_VERSION_MIN_MACOSX or
+ LC_VERSION_MIN_IPHONEOS */
+ uint32_t cmdsize; /* sizeof(struct min_version_command) */
+ uint32_t version; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
+ uint32_t sdk; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
+ };
+#endif
+
+#ifndef LC_VERSION_MIN_IPHONEOS
+ #define LC_VERSION_MIN_IPHONEOS 0x25
+#endif
+
+#ifndef LC_VERSION_MIN_TVOS
+ #define LC_VERSION_MIN_TVOS 0x2F
+#endif
+
+#ifndef LC_VERSION_MIN_WATCHOS
+ #define LC_VERSION_MIN_WATCHOS 0x30
+#endif
+
+
+#ifndef LC_LOAD_UPWARD_DYLIB
+ #define LC_LOAD_UPWARD_DYLIB (0x23|LC_REQ_DYLD) /* load of dylib whose initializers run later */
+#endif
+
+#ifndef LC_BUILD_VERSION
+ #define LC_BUILD_VERSION 0x32 /* build for platform min OS version */
+
+ /*
+ * The build_version_command contains the min OS version on which this
+ * binary was built to run for its platform. The list of known platforms and
+ * tool values following it.
+ */
+ struct build_version_command {
+ uint32_t cmd; /* LC_BUILD_VERSION */
+ uint32_t cmdsize; /* sizeof(struct build_version_command) plus */
+ /* ntools * sizeof(struct build_tool_version) */
+ uint32_t platform; /* platform */
+ uint32_t minos; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
+ uint32_t sdk; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
+ uint32_t ntools; /* number of tool entries following this */
+ };
+
+ struct build_tool_version {
+ uint32_t tool; /* enum for the tool */
+ uint32_t version; /* version number of the tool */
+ };
+
+ /* Known values for the platform field above. */
+ #define PLATFORM_MACOS 1
+ #define PLATFORM_IOS 2
+ #define PLATFORM_TVOS 3
+ #define PLATFORM_WATCHOS 4
+ #define PLATFORM_BRIDGEOS 5
+
+ /* Known values for the tool field above. */
+ #define TOOL_CLANG 1
+ #define TOOL_SWIFT 2
+ #define TOOL_LD 3
+#endif
+
+
+// deprecated APIs are still availble on Mac OS X, but not on iPhone OS
+#if __IPHONE_OS_VERSION_MIN_REQUIRED
+ #define DEPRECATED_APIS_SUPPORTED 0
+#else
+ #define DEPRECATED_APIS_SUPPORTED 1
+#endif
+
+/*
+ * names_match() takes an install_name from an LC_LOAD_DYLIB command and a
+ * libraryName (which is -lx or -framework Foo argument passed to the static
+ * link editor for the same library) and determines if they match. This depends
+ * on conventional use of names including major versioning.
+ */
+static
+bool
+names_match(
+const char *install_name,
+const char* libraryName)
+{
+ const char *basename;
+ unsigned long n;
+
+ /*
+ * Conventional install names have these forms:
+ * /System/Library/Frameworks/AppKit.framework/Versions/A/Appkit
+ * /Local/Library/Frameworks/AppKit.framework/Appkit
+ * /lib/libsys_s.A.dylib
+ * /usr/lib/libsys_s.dylib
+ */
+ basename = strrchr(install_name, '/');
+ if(basename == NULL)
+ basename = install_name;
+ else
+ basename++;
+
+ /*
+ * By checking the base name matching the library name we take care
+ * of the -framework cases.
+ */
+ if(strcmp(basename, libraryName) == 0)
+ return true;
+
+ /*
+ * Now check the base name for "lib" if so proceed to check for the
+ * -lx case dealing with a possible .X.dylib and a .dylib extension.
+ */
+ if(strncmp(basename, "lib", 3) ==0){
+ n = strlen(libraryName);
+ if(strncmp(basename+3, libraryName, n) == 0){
+ if(strncmp(basename+3+n, ".dylib", 6) == 0)
+ return true;
+ if(basename[3+n] == '.' &&
+ basename[3+n+1] != '\0' &&
+ strncmp(basename+3+n+2, ".dylib", 6) == 0)
+ return true;
+ }
+ }
+ return false;
+}
+
+#if DEPRECATED_APIS_SUPPORTED
+
+void NSInstallLinkEditErrorHandlers(
+const NSLinkEditErrorHandlers* handlers)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSInstallLinkEditErrorHandlers(handlers);
+
+ DYLD_LOCK_THIS_BLOCK;
+ typedef void (*ucallback_t)(const char* symbol_name);
+ typedef NSModule (*mcallback_t)(NSSymbol s, NSModule old, NSModule newhandler);
+ typedef void (*lcallback_t)(NSLinkEditErrors c, int errorNumber,
+ const char* fileName, const char* errorString);
+ static void (*p)(ucallback_t undefined, mcallback_t multiple, lcallback_t linkEdit) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_install_handlers", (void**)&p);
+ mcallback_t m = handlers->multiple;
+ p(handlers->undefined, m, handlers->linkEdit);
+}
+
+const char*
+NSNameOfModule(
+NSModule module)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSNameOfModule(module);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static const char* (*p)(NSModule module) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSNameOfModule", (void**)&p);
+ return(p(module));
+}
+
+const char*
+NSLibraryNameForModule(
+NSModule module)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSLibraryNameForModule(module);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static const char* (*p)(NSModule module) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSLibraryNameForModule", (void**)&p);
+ return(p(module));
+}
+
+bool
+NSIsSymbolNameDefined(
+const char* symbolName)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSIsSymbolNameDefined(symbolName);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(const char* symbolName) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSIsSymbolNameDefined", (void**)&p);
+ return(p(symbolName));
+}
+
+bool
+NSIsSymbolNameDefinedWithHint(
+const char* symbolName,
+const char* libraryNameHint)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSIsSymbolNameDefinedWithHint(symbolName, libraryNameHint);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(const char* symbolName,
+ const char* libraryNameHint) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSIsSymbolNameDefinedWithHint", (void**)&p);
+ return(p(symbolName, libraryNameHint));
+}
+
+bool
+NSIsSymbolNameDefinedInImage(
+const struct mach_header *image,
+const char* symbolName)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSIsSymbolNameDefinedInImage(image, symbolName);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(const struct mach_header *image,
+ const char* symbolName) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSIsSymbolNameDefinedInImage", (void**)&p);
+ return(p(image, symbolName));
+}
+
+NSSymbol
+NSLookupAndBindSymbol(
+const char* symbolName)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSLookupAndBindSymbol(symbolName);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static NSSymbol (*p)(const char* symbolName) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSLookupAndBindSymbol", (void**)&p);
+ return(p(symbolName));
+}
+
+NSSymbol
+NSLookupAndBindSymbolWithHint(
+const char* symbolName,
+const char* libraryNameHint)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSLookupAndBindSymbolWithHint(symbolName, libraryNameHint);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static NSSymbol (*p)(const char* symbolName,
+ const char* libraryNameHint) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSLookupAndBindSymbolWithHint", (void**)&p);
+ return(p(symbolName, libraryNameHint));
+}
+
+NSSymbol
+NSLookupSymbolInModule(
+NSModule module,
+const char* symbolName)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSLookupSymbolInModule(module, symbolName);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static NSSymbol (*p)(NSModule module, const char* symbolName) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSLookupSymbolInModule", (void**)&p);
+ return(p(module, symbolName));
+}
+
+NSSymbol
+NSLookupSymbolInImage(
+const struct mach_header *image,
+const char* symbolName,
+uint32_t options)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSLookupSymbolInImage(image, symbolName, options);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static NSSymbol (*p)(const struct mach_header *image,
+ const char* symbolName,
+ uint32_t options) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSLookupSymbolInImage", (void**)&p);
+ return(p(image, symbolName, options));
+}
+
+const char*
+NSNameOfSymbol(
+NSSymbol symbol)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSNameOfSymbol(symbol);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static char * (*p)(NSSymbol symbol) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSNameOfSymbol",(void**)&p);
+ return(p(symbol));
+}
+
+void *
+NSAddressOfSymbol(
+NSSymbol symbol)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSAddressOfSymbol(symbol);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static void * (*p)(NSSymbol symbol) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSAddressOfSymbol", (void**)&p);
+ return(p(symbol));
+}
+
+NSModule
+NSModuleForSymbol(
+NSSymbol symbol)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSModuleForSymbol(symbol);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static NSModule (*p)(NSSymbol symbol) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSModuleForSymbol", (void**)&p);
+ return(p(symbol));
+}
+
+bool
+NSAddLibrary(
+const char* pathName)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSAddLibrary(pathName);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(const char* pathName) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSAddLibrary", (void**)&p);
+ return(p(pathName));
+}
+
+bool
+NSAddLibraryWithSearching(
+const char* pathName)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSAddLibrary(pathName);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(const char* pathName) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSAddLibraryWithSearching", (void**)&p);
+ return(p(pathName));
+}
+
+const struct mach_header *
+NSAddImage(
+const char* image_name,
+uint32_t options)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSAddImage(image_name, options);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static const struct mach_header * (*p)(const char* image_name,
+ uint32_t options) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSAddImage", (void**)&p);
+ return(p(image_name, options));
+}
+#endif // DEPRECATED_APIS_SUPPORTED
+
+/*
+ * This routine returns the current version of the named shared library the
+ * executable it was built with. The libraryName parameter is the same as the
+ * -lx or -framework Foo argument passed to the static link editor when building
+ * the executable (with -lx it would be "x" and with -framework Foo it would be
+ * "Foo"). If this the executable was not built against the specified library
+ * it returns -1. It should be noted that if this only returns the value the
+ * current version of the named shared library the executable was built with
+ * and not a list of current versions that dependent libraries and bundles the
+ * program is using were built with.
+ */
+int32_t NSVersionOfLinkTimeLibrary(const char* libraryName)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSVersionOfLinkTimeLibrary(libraryName);
+
+ // Lazily call _NSGetMachExecuteHeader() and cache result
+#if __LP64__
+ static mach_header_64* mh = NULL;
+#else
+ static mach_header* mh = NULL;
+#endif
+ if ( mh == NULL )
+ mh = _NSGetMachExecuteHeader();
+#if __LP64__
+ const load_command* lc = (load_command*)((char*)mh + sizeof(mach_header_64));
+#else
+ const load_command* lc = (load_command*)((char*)mh + sizeof(mach_header));
+#endif
+ for(uint32_t i = 0; i < mh->ncmds; i++){
+ switch ( lc->cmd ) {
+ case LC_LOAD_DYLIB:
+ case LC_LOAD_WEAK_DYLIB:
+ case LC_LOAD_UPWARD_DYLIB:
+ const dylib_command* dl = (dylib_command *)lc;
+ const char* install_name = (char*)dl + dl->dylib.name.offset;
+ if ( names_match(install_name, libraryName) )
+ return dl->dylib.current_version;
+ break;
+ }
+ lc = (load_command*)((char*)lc + lc->cmdsize);
+ }
+ return (-1);
+}
+
+/*
+ * This routine returns the current version of the named shared library the
+ * program it is running against. The libraryName parameter is the same as
+ * would be static link editor using the -lx or -framework Foo flags (with -lx
+ * it would be "x" and with -framework Foo it would be "Foo"). If the program
+ * is not using the specified library it returns -1.
+ */
+int32_t NSVersionOfRunTimeLibrary(const char* libraryName)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSVersionOfRunTimeLibrary(libraryName);
+
+ uint32_t n = _dyld_image_count();
+ for(uint32_t i = 0; i < n; i++){
+ const mach_header* mh = _dyld_get_image_header(i);
+ if ( mh == NULL )
+ continue;
+ if ( mh->filetype != MH_DYLIB )
+ continue;
+#if __LP64__
+ const load_command* lc = (load_command*)((char*)mh + sizeof(mach_header_64));
+#else
+ const load_command* lc = (load_command*)((char*)mh + sizeof(mach_header));
+#endif
+ for(uint32_t j = 0; j < mh->ncmds; j++){
+ if ( lc->cmd == LC_ID_DYLIB ) {
+ const dylib_command* dl = (dylib_command*)lc;
+ const char* install_name = (char *)dl + dl->dylib.name.offset;
+ if ( names_match(install_name, libraryName) )
+ return dl->dylib.current_version;
+ }
+ lc = (load_command*)((char*)lc + lc->cmdsize);
+ }
+ }
+ return (-1);
+}
+
+
+#define PACKED_VERSION(major, minor, tiny) ((((major) & 0xffff) << 16) | (((minor) & 0xff) << 8) | ((tiny) & 0xff))
+
+
+static bool getVersionLoadCommandInfo(const mach_header* mh, uint32_t* platform, uint32_t* minOS, uint32_t* sdk)
+{
+ const load_command* startCmds = NULL;
+ if ( mh->magic == MH_MAGIC_64 )
+ startCmds = (load_command*)((char *)mh + sizeof(mach_header_64));
+ else if ( mh->magic == MH_MAGIC )
+ startCmds = (load_command*)((char *)mh + sizeof(mach_header));
+ else
+ return false; // not a mach-o file, or wrong endianness
+
+ const load_command* const cmdsEnd = (load_command*)((char*)startCmds + mh->sizeofcmds);
+ const load_command* cmd = startCmds;
+ for(uint32_t i = 0; i < mh->ncmds; ++i) {
+ const load_command* nextCmd = (load_command*)((char *)cmd + cmd->cmdsize);
+ if ( (cmd->cmdsize < 8) || (nextCmd > cmdsEnd) || (nextCmd < startCmds)) {
+ return 0;
+ }
+ const version_min_command* versCmd;
+ const build_version_command* buildVersCmd;
+ switch ( cmd->cmd ) {
+ case LC_VERSION_MIN_IPHONEOS:
+ versCmd = (version_min_command*)cmd;
+ *platform = PLATFORM_IOS;
+ *minOS = versCmd->version;
+ *sdk = versCmd->sdk;
+ return true;
+ case LC_VERSION_MIN_MACOSX:
+ versCmd = (version_min_command*)cmd;
+ *platform = PLATFORM_MACOS;
+ *minOS = versCmd->version;
+ *sdk = versCmd->sdk;
+ return true;
+ case LC_VERSION_MIN_TVOS:
+ versCmd = (version_min_command*)cmd;
+ *platform = PLATFORM_TVOS;
+ *minOS = versCmd->version;
+ *sdk = versCmd->sdk;
+ return true;
+ case LC_VERSION_MIN_WATCHOS:
+ versCmd = (version_min_command*)cmd;
+ *platform = PLATFORM_WATCHOS;
+ *minOS = versCmd->version;
+ *sdk = versCmd->sdk;
+ return true;
+ case LC_BUILD_VERSION:
+ buildVersCmd = (build_version_command*)cmd;
+ *platform = buildVersCmd->platform;
+ *minOS = buildVersCmd->minos;
+ *sdk = buildVersCmd->sdk;
+ return true;
+ }
+ cmd = nextCmd;
+ }
+ return false;
+}
+
+#if !__WATCH_OS_VERSION_MIN_REQUIRED && !__TV_OS_VERSION_MIN_REQUIRED
+static uint32_t deriveSDKVersFromDylibs(const mach_header* mh)
+{
+ const load_command* startCmds = NULL;
+ if ( mh->magic == MH_MAGIC_64 )
+ startCmds = (load_command*)((char *)mh + sizeof(mach_header_64));
+ else if ( mh->magic == MH_MAGIC )
+ startCmds = (load_command*)((char *)mh + sizeof(mach_header));
+ else
+ return 0; // not a mach-o file, or wrong endianness
+
+ const load_command* const cmdsEnd = (load_command*)((char*)startCmds + mh->sizeofcmds);
+ const dylib_command* dylibCmd;
+ const load_command* cmd = startCmds;
+ const char* dylibName;
+ #if __IPHONE_OS_VERSION_MIN_REQUIRED
+ uint32_t foundationVers = 0;
+ #else
+ uint32_t libSystemVers = 0;
+ #endif
+ for(uint32_t i = 0; i < mh->ncmds; ++i) {
+ const load_command* nextCmd = (load_command*)((char *)cmd + cmd->cmdsize);
+ // <rdar://problem/14381579&16050962> sanity check size of command
+ if ( (cmd->cmdsize < 8) || (nextCmd > cmdsEnd) || (nextCmd < startCmds)) {
+ return 0;
+ }
+ switch ( cmd->cmd ) {
+ case LC_LOAD_DYLIB:
+ case LC_LOAD_WEAK_DYLIB:
+ case LC_LOAD_UPWARD_DYLIB:
+ dylibCmd = (dylib_command*)cmd;
+ // sanity check dylib command layout
+ if ( dylibCmd->dylib.name.offset > cmd->cmdsize )
+ return 0;
+ dylibName = (char*)dylibCmd + dylibCmd->dylib.name.offset;
+ #if __IPHONE_OS_VERSION_MIN_REQUIRED
+ if ( strcmp(dylibName, "/System/Library/Frameworks/Foundation.framework/Foundation") == 0 )
+ foundationVers = dylibCmd->dylib.current_version;
+ #else
+ if ( strcmp(dylibName, "/usr/lib/libSystem.B.dylib") == 0 )
+ libSystemVers = dylibCmd->dylib.current_version;
+ #endif
+ break;
+ }
+ cmd = nextCmd;
+ }
+
+ struct DylibToOSMapping {
+ uint32_t dylibVersion;
+ uint32_t osVersion;
+ };
+
+ #if __IPHONE_OS_VERSION_MIN_REQUIRED
+ static const DylibToOSMapping foundationMapping[] = {
+ { PACKED_VERSION(678,24,0), 0x00020000 },
+ { PACKED_VERSION(678,26,0), 0x00020100 },
+ { PACKED_VERSION(678,29,0), 0x00020200 },
+ { PACKED_VERSION(678,47,0), 0x00030000 },
+ { PACKED_VERSION(678,51,0), 0x00030100 },
+ { PACKED_VERSION(678,60,0), 0x00030200 },
+ { PACKED_VERSION(751,32,0), 0x00040000 },
+ { PACKED_VERSION(751,37,0), 0x00040100 },
+ { PACKED_VERSION(751,49,0), 0x00040200 },
+ { PACKED_VERSION(751,58,0), 0x00040300 },
+ { PACKED_VERSION(881,0,0), 0x00050000 },
+ { PACKED_VERSION(890,1,0), 0x00050100 },
+ { PACKED_VERSION(992,0,0), 0x00060000 },
+ { PACKED_VERSION(993,0,0), 0x00060100 },
+ { PACKED_VERSION(1038,14,0),0x00070000 },
+ { PACKED_VERSION(0,0,0), 0x00070000 }
+ // We don't need to expand this table because all recent
+ // binaries have LC_VERSION_MIN_ load command.
+ };
+
+ if ( foundationVers != 0 ) {
+ uint32_t lastOsVersion = 0;
+ for (const DylibToOSMapping* p=foundationMapping; ; ++p) {
+ if ( p->dylibVersion == 0 )
+ return p->osVersion;
+ if ( foundationVers < p->dylibVersion )
+ return lastOsVersion;
+ lastOsVersion = p->osVersion;
+ }
+ }
+
+ #else
+ // Note: versions are for the GM release. The last entry should
+ // always be zero. At the start of the next major version,
+ // a new last entry needs to be added and the previous zero
+ // updated to the GM dylib version.
+ static const DylibToOSMapping libSystemMapping[] = {
+ { PACKED_VERSION(88,1,3), 0x000A0400 },
+ { PACKED_VERSION(111,0,0), 0x000A0500 },
+ { PACKED_VERSION(123,0,0), 0x000A0600 },
+ { PACKED_VERSION(159,0,0), 0x000A0700 },
+ { PACKED_VERSION(169,3,0), 0x000A0800 },
+ { PACKED_VERSION(1197,0,0), 0x000A0900 },
+ { PACKED_VERSION(0,0,0), 0x000A0900 }
+ // We don't need to expand this table because all recent
+ // binaries have LC_VERSION_MIN_ load command.
+ };
+
+ if ( libSystemVers != 0 ) {
+ uint32_t lastOsVersion = 0;
+ for (const DylibToOSMapping* p=libSystemMapping; ; ++p) {
+ if ( p->dylibVersion == 0 )
+ return p->osVersion;
+ if ( libSystemVers < p->dylibVersion )
+ return lastOsVersion;
+ lastOsVersion = p->osVersion;
+ }
+ }
+ #endif
+ return 0;
+}
+#endif
+
+
+#if __WATCH_OS_VERSION_MIN_REQUIRED
+static uint32_t watchVersToIOSVers(uint32_t vers)
+{
+ return vers + 0x00070000;
+}
+
+uint32_t dyld_get_program_sdk_watch_os_version()
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_get_program_sdk_watch_os_version();
+
+ const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
+ uint32_t platform;
+ uint32_t minOS;
+ uint32_t sdk;
+
+ if ( getVersionLoadCommandInfo(mh, &platform, &minOS, &sdk) ) {
+ if ( platform == PLATFORM_WATCHOS )
+ return sdk;
+ }
+ return 0;
+}
+
+uint32_t dyld_get_program_min_watch_os_version()
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_get_program_min_watch_os_version();
+
+ const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
+ uint32_t platform;
+ uint32_t minOS;
+ uint32_t sdk;
+
+ if ( getVersionLoadCommandInfo(mh, &platform, &minOS, &sdk) ) {
+ if ( platform == PLATFORM_WATCHOS )
+ return minOS; // return raw minOS (not mapped to iOS version)
+ }
+ return 0;
+}
+
+#endif
+
+
+
+#if TARGET_OS_BRIDGE
+static uint32_t bridgeVersToIOSVers(uint32_t vers)
+{
+ return vers + 0x00090000;
+}
+
+uint32_t dyld_get_program_sdk_bridge_os_version()
+{
+ const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
+ uint32_t platform;
+ uint32_t minOS;
+ uint32_t sdk;
+
+ if ( getVersionLoadCommandInfo(mh, &platform, &minOS, &sdk) ) {
+ if ( platform == PLATFORM_BRIDGEOS )
+ return sdk;
+ }
+ return 0;
+}
+
+uint32_t dyld_get_program_min_bridge_os_version()
+{
+ const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
+ uint32_t platform;
+ uint32_t minOS;
+ uint32_t sdk;
+
+ if ( getVersionLoadCommandInfo(mh, &platform, &minOS, &sdk) ) {
+ if ( platform == PLATFORM_BRIDGEOS )
+ return minOS; // return raw minOS (not mapped to iOS version)
+ }
+ return 0;
+}
+
+#endif
+
+/*
+ * Returns the sdk version (encode as nibble XXXX.YY.ZZ) the
+ * specified binary was built against.
+ *
+ * First looks for LC_VERSION_MIN_* in binary and if sdk field is
+ * not zero, return that value.
+ * Otherwise, looks for the libSystem.B.dylib the binary linked
+ * against and uses a table to convert that to an sdk version.
+ */
+uint32_t dyld_get_sdk_version(const mach_header* mh)
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_get_sdk_version(mh);
+
+ uint32_t platform;
+ uint32_t minOS;
+ uint32_t sdk;
+
+ if ( getVersionLoadCommandInfo(mh, &platform, &minOS, &sdk) ) {
+ switch (platform) {
+#if TARGET_OS_BRIDGE
+ case PLATFORM_BRIDGEOS:
+ // new binary. sdk version looks like "2.0" but API wants "11.0"
+ return bridgeVersToIOSVers(sdk);
+ case PLATFORM_IOS:
+ // old binary. sdk matches API semantics so can return directly.
+ return sdk;
+#elif __WATCH_OS_VERSION_MIN_REQUIRED
+ case PLATFORM_WATCHOS:
+ // new binary. sdk version looks like "2.0" but API wants "9.0"
+ return watchVersToIOSVers(sdk);
+ case PLATFORM_IOS:
+ // old binary. sdk matches API semantics so can return directly.
+ return sdk;
+#elif __TV_OS_VERSION_MIN_REQUIRED
+ case PLATFORM_TVOS:
+ case PLATFORM_IOS:
+ return sdk;
+#elif __IPHONE_OS_VERSION_MIN_REQUIRED
+ case PLATFORM_IOS:
+ if ( sdk != 0 ) // old binaries might not have SDK set
+ return sdk;
+ break;
+#else
+ case PLATFORM_MACOS:
+ if ( sdk != 0 ) // old binaries might not have SDK set
+ return sdk;
+ break;
+#endif
+ }
+ }
+
+#if __WATCH_OS_VERSION_MIN_REQUIRED || __TV_OS_VERSION_MIN_REQUIRED || TARGET_OS_BRIDGE
+ // All WatchOS and tv OS binaries should have version load command.
+ return 0;
+#else
+ // MacOSX and iOS have old binaries without version load commmand.
+ return deriveSDKVersFromDylibs(mh);
+#endif
+}
+
+uint32_t dyld_get_program_sdk_version()
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_get_program_sdk_version();
+
+ return dyld_get_sdk_version((mach_header*)_NSGetMachExecuteHeader());
+}
+
+uint32_t dyld_get_min_os_version(const struct mach_header* mh)
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_get_min_os_version(mh);
+
+ uint32_t platform;
+ uint32_t minOS;
+ uint32_t sdk;
+
+ if ( getVersionLoadCommandInfo(mh, &platform, &minOS, &sdk) ) {
+ switch (platform) {
+#if TARGET_OS_BRIDGE
+ case PLATFORM_BRIDGEOS:
+ // new binary. sdk version looks like "2.0" but API wants "11.0"
+ return bridgeVersToIOSVers(minOS);
+ case PLATFORM_IOS:
+ // old binary. sdk matches API semantics so can return directly.
+ return minOS;
+#elif __WATCH_OS_VERSION_MIN_REQUIRED
+ case PLATFORM_WATCHOS:
+ // new binary. OS version looks like "2.0" but API wants "9.0"
+ return watchVersToIOSVers(minOS);
+ case PLATFORM_IOS:
+ // old binary. OS matches API semantics so can return directly.
+ return minOS;
+#elif __TV_OS_VERSION_MIN_REQUIRED
+ case PLATFORM_TVOS:
+ case PLATFORM_IOS:
+ return minOS;
+#elif __IPHONE_OS_VERSION_MIN_REQUIRED
+ case PLATFORM_IOS:
+ return minOS;
+#else
+ case PLATFORM_MACOS:
+ return minOS;
+#endif
+ }
+ }
+ return 0;
+}
+
+
+uint32_t dyld_get_program_min_os_version()
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_get_program_min_os_version();
+
+ return dyld_get_min_os_version((mach_header*)_NSGetMachExecuteHeader());
+}
+
+
+bool _dyld_get_image_uuid(const struct mach_header* mh, uuid_t uuid)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_uuid(mh, uuid);
+
+ const load_command* startCmds = NULL;
+ if ( mh->magic == MH_MAGIC_64 )
+ startCmds = (load_command*)((char *)mh + sizeof(mach_header_64));
+ else if ( mh->magic == MH_MAGIC )
+ startCmds = (load_command*)((char *)mh + sizeof(mach_header));
+ else
+ return false; // not a mach-o file, or wrong endianness
+
+ const load_command* const cmdsEnd = (load_command*)((char*)startCmds + mh->sizeofcmds);
+ const load_command* cmd = startCmds;
+ for(uint32_t i = 0; i < mh->ncmds; ++i) {
+ const load_command* nextCmd = (load_command*)((char *)cmd + cmd->cmdsize);
+ if ( (cmd->cmdsize < 8) || (nextCmd > cmdsEnd) || (nextCmd < startCmds)) {
+ return false;
+ }
+ if ( cmd->cmd == LC_UUID ) {
+ const uuid_command* uuidCmd = (uuid_command*)cmd;
+ memcpy(uuid, uuidCmd->uuid, 16);
+ return true;
+ }
+ cmd = nextCmd;
+ }
+ bzero(uuid, 16);
+ return false;
+}
+
+
+
+#if DEPRECATED_APIS_SUPPORTED
+/*
+ * NSCreateObjectFileImageFromFile() creates an NSObjectFileImage for the
+ * specified file name if the file is a correct Mach-O file that can be loaded
+ * with NSloadModule(). For return codes of NSObjectFileImageFailure and
+ * NSObjectFileImageFormat an error message is printed to stderr. All
+ * other codes cause no printing.
+ */
+NSObjectFileImageReturnCode
+NSCreateObjectFileImageFromFile(
+const char* pathName,
+NSObjectFileImage *objectFileImage)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSCreateObjectFileImageFromFile(pathName, objectFileImage);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static NSObjectFileImageReturnCode (*p)(const char*, NSObjectFileImage*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSCreateObjectFileImageFromFile", (void**)&p);
+ return p(pathName, objectFileImage);
+}
+
+
+/*
+ * NSCreateObjectFileImageFromMemory() creates an NSObjectFileImage for the
+ * object file mapped into memory at address of size length if the object file
+ * is a correct Mach-O file that can be loaded with NSloadModule(). For return
+ * codes of NSObjectFileImageFailure and NSObjectFileImageFormat an error
+ * message is printed to stderr. All other codes cause no printing.
+ */
+NSObjectFileImageReturnCode
+NSCreateObjectFileImageFromMemory(
+const void* address,
+size_t size,
+NSObjectFileImage *objectFileImage)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSCreateObjectFileImageFromMemory(address, size, objectFileImage);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static NSObjectFileImageReturnCode (*p)(const void*, size_t, NSObjectFileImage*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSCreateObjectFileImageFromMemory", (void**)&p);
+ return p(address, size, objectFileImage);
+}
+
+#if OBSOLETE_DYLD_API
+/*
+ * NSCreateCoreFileImageFromFile() creates an NSObjectFileImage for the
+ * specified core file name if the file is a correct Mach-O core file.
+ * For return codes of NSObjectFileImageFailure and NSObjectFileImageFormat
+ * an error message is printed to stderr. All other codes cause no printing.
+ */
+NSObjectFileImageReturnCode
+NSCreateCoreFileImageFromFile(
+const char* pathName,
+NSObjectFileImage *objectFileImage)
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static NSObjectFileImageReturnCode (*p)(const char*, NSObjectFileImage*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSCreateCoreFileImageFromFile", (void**)&p);
+ return p(pathName, objectFileImage);
+}
+#endif
+
+bool
+NSDestroyObjectFileImage(
+NSObjectFileImage objectFileImage)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSDestroyObjectFileImage(objectFileImage);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(NSObjectFileImage) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSDestroyObjectFileImage", (void**)&p);
+ return p(objectFileImage);
+}
+
+
+NSModule
+NSLinkModule(
+NSObjectFileImage objectFileImage,
+const char* moduleName,
+uint32_t options)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSLinkModule(objectFileImage, moduleName, options);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static NSModule (*p)(NSObjectFileImage, const char*, unsigned long) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSLinkModule", (void**)&p);
+
+ return p(objectFileImage, moduleName, options);
+}
+
+
+
+
+/*
+ * NSSymbolDefinitionCountInObjectFileImage() returns the number of symbol
+ * definitions in the NSObjectFileImage.
+ */
+uint32_t
+NSSymbolDefinitionCountInObjectFileImage(
+NSObjectFileImage objectFileImage)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSSymbolDefinitionCountInObjectFileImage(objectFileImage);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static uint32_t (*p)(NSObjectFileImage) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSSymbolDefinitionCountInObjectFileImage", (void**)&p);
+
+ return p(objectFileImage);
+}
+
+/*
+ * NSSymbolDefinitionNameInObjectFileImage() returns the name of the i'th
+ * symbol definitions in the NSObjectFileImage. If the ordinal specified is
+ * outside the range [0..NSSymbolDefinitionCountInObjectFileImage], NULL will
+ * be returned.
+ */
+const char*
+NSSymbolDefinitionNameInObjectFileImage(
+NSObjectFileImage objectFileImage,
+uint32_t ordinal)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSSymbolDefinitionNameInObjectFileImage(objectFileImage, ordinal);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static const char* (*p)(NSObjectFileImage, uint32_t) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSSymbolDefinitionNameInObjectFileImage", (void**)&p);
+
+ return p(objectFileImage, ordinal);
+}
+
+/*
+ * NSSymbolReferenceCountInObjectFileImage() returns the number of references
+ * to undefined symbols the NSObjectFileImage.
+ */
+uint32_t
+NSSymbolReferenceCountInObjectFileImage(
+NSObjectFileImage objectFileImage)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSSymbolReferenceCountInObjectFileImage(objectFileImage);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static uint32_t (*p)(NSObjectFileImage) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSSymbolReferenceCountInObjectFileImage", (void**)&p);
+
+ return p(objectFileImage);
+}
+
+/*
+ * NSSymbolReferenceNameInObjectFileImage() returns the name of the i'th
+ * undefined symbol in the NSObjectFileImage. If the ordinal specified is
+ * outside the range [0..NSSymbolReferenceCountInObjectFileImage], NULL will be
+ * returned.
+ */
+const char*
+NSSymbolReferenceNameInObjectFileImage(
+NSObjectFileImage objectFileImage,
+uint32_t ordinal,
+bool *tentative_definition) /* can be NULL */
+{
+ if ( gUseDyld3 )
+ return dyld3::NSSymbolReferenceNameInObjectFileImage(objectFileImage, ordinal, tentative_definition);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static const char* (*p)(NSObjectFileImage, uint32_t, bool*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSSymbolReferenceNameInObjectFileImage", (void**)&p);
+
+ return p(objectFileImage, ordinal, tentative_definition);
+}
+
+/*
+ * NSIsSymbolDefinedInObjectFileImage() returns TRUE if the specified symbol
+ * name has a definition in the NSObjectFileImage and FALSE otherwise.
+ */
+bool
+NSIsSymbolDefinedInObjectFileImage(
+NSObjectFileImage objectFileImage,
+const char* symbolName)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSIsSymbolDefinedInObjectFileImage(objectFileImage, symbolName);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(NSObjectFileImage, const char*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSIsSymbolDefinedInObjectFileImage", (void**)&p);
+
+ return p(objectFileImage, symbolName);
+}
+
+/*
+ * NSGetSectionDataInObjectFileImage() returns a pointer to the section contents
+ * in the NSObjectFileImage for the specified segmentName and sectionName if
+ * it exists and it is not a zerofill section. If not it returns NULL. If
+ * the parameter size is not NULL the size of the section is also returned
+ * indirectly through that pointer.
+ */
+void *
+NSGetSectionDataInObjectFileImage(
+NSObjectFileImage objectFileImage,
+const char* segmentName,
+const char* sectionName,
+unsigned long *size) /* can be NULL */
+{
+ if ( gUseDyld3 )
+ return dyld3::NSGetSectionDataInObjectFileImage(objectFileImage, segmentName, sectionName, size);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static void* (*p)(NSObjectFileImage, const char*, const char*, unsigned long*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSGetSectionDataInObjectFileImage", (void**)&p);
+
+ return p(objectFileImage, segmentName, sectionName, size);
+}
+
+
+void
+NSLinkEditError(
+NSLinkEditErrors *c,
+int *errorNumber,
+const char* *fileName,
+const char* *errorString)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSLinkEditError(c, errorNumber, fileName, errorString);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(NSLinkEditErrors *c,
+ int *errorNumber,
+ const char* *fileName,
+ const char* *errorString) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_link_edit_error", (void**)&p);
+ if(p != NULL)
+ p(c, errorNumber, fileName, errorString);
+}
+
+bool
+NSUnLinkModule(
+NSModule module,
+uint32_t options)
+{
+ if ( gUseDyld3 )
+ return dyld3::NSUnLinkModule(module, options);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(NSModule module, uint32_t options) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_unlink_module", (void**)&p);
+
+ return p(module, options);
+}
+
+#if OBSOLETE_DYLD_API
+NSModule
+NSReplaceModule(
+NSModule moduleToReplace,
+NSObjectFileImage newObjectFileImage,
+uint32_t options)
+{
+ return(NULL);
+}
+#endif
+
+
+#endif // DEPRECATED_APIS_SUPPORTED
+
+/*
+ *_NSGetExecutablePath copies the path of the executable into the buffer and
+ * returns 0 if the path was successfully copied in the provided buffer. If the
+ * buffer is not large enough, -1 is returned and the expected buffer size is
+ * copied in *bufsize. Note that _NSGetExecutablePath will return "a path" to
+ * the executable not a "real path" to the executable. That is the path may be
+ * a symbolic link and not the real file. And with deep directories the total
+ * bufsize needed could be more than MAXPATHLEN.
+ */
+int
+_NSGetExecutablePath(
+char *buf,
+uint32_t *bufsize)
+{
+ if ( gUseDyld3 )
+ return dyld3::_NSGetExecutablePath(buf, bufsize);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static int (*p)(char *buf, uint32_t *bufsize) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld__NSGetExecutablePath", (void**)&p);
+ return(p(buf, bufsize));
+}
+
+#if DEPRECATED_APIS_SUPPORTED
+void
+_dyld_lookup_and_bind(
+const char* symbol_name,
+void** address,
+NSModule* module)
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(const char*, void** , NSModule*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_lookup_and_bind", (void**)&p);
+ p(symbol_name, address, module);
+}
+
+void
+_dyld_lookup_and_bind_with_hint(
+const char* symbol_name,
+const char* library_name_hint,
+void** address,
+NSModule* module)
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(const char*, const char*, void**, NSModule*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_lookup_and_bind_with_hint", (void**)&p);
+ p(symbol_name, library_name_hint, address, module);
+}
+
+#if OBSOLETE_DYLD_API
+void
+_dyld_lookup_and_bind_objc(
+const char* symbol_name,
+void** address,
+NSModule* module)
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(const char* , void**, NSModule*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_lookup_and_bind_objc", (void**)&p);
+ p(symbol_name, address, module);
+}
+#endif
+
+void
+_dyld_lookup_and_bind_fully(
+const char* symbol_name,
+void** address,
+NSModule* module)
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(const char*, void**, NSModule*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_lookup_and_bind_fully", (void**)&p);
+ p(symbol_name, address, module);
+}
+
+bool
+_dyld_bind_fully_image_containing_address(
+const void* address)
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(const void*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_bind_fully_image_containing_address", (void**)&p);
+ return p(address);
+}
+#endif // DEPRECATED_APIS_SUPPORTED
+
+
+/*
+ * _dyld_register_func_for_add_image registers the specified function to be
+ * called when a new image is added (a bundle or a dynamic shared library) to
+ * the program. When this function is first registered it is called for once
+ * for each image that is currently part of the program.
+ */
+void
+_dyld_register_func_for_add_image(
+void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide))
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_register_func_for_add_image(func);
+
+ DYLD_LOCK_THIS_BLOCK;
+ typedef void (*callback_t)(const struct mach_header *mh, intptr_t vmaddr_slide);
+ static void (*p)(callback_t func) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_register_func_for_add_image", (void**)&p);
+ p(func);
+}
+
+/*
+ * _dyld_register_func_for_remove_image registers the specified function to be
+ * called when an image is removed (a bundle or a dynamic shared library) from
+ * the program.
+ */
+void
+_dyld_register_func_for_remove_image(
+void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide))
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_register_func_for_remove_image(func);
+
+ DYLD_LOCK_THIS_BLOCK;
+ typedef void (*callback_t)(const struct mach_header *mh, intptr_t vmaddr_slide);
+ static void (*p)(callback_t func) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_register_func_for_remove_image", (void**)&p);
+ p(func);
+}
+
+#if OBSOLETE_DYLD_API
+/*
+ * _dyld_register_func_for_link_module registers the specified function to be
+ * called when a module is bound into the program. When this function is first
+ * registered it is called for once for each module that is currently bound into
+ * the program.
+ */
+void
+_dyld_register_func_for_link_module(
+void (*func)(NSModule module))
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(void (*func)(NSModule module)) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_register_func_for_link_module", (void**)&p);
+ p(func);
+}
+
+/*
+ * _dyld_register_func_for_unlink_module registers the specified function to be
+ * called when a module is unbound from the program.
+ */
+void
+_dyld_register_func_for_unlink_module(
+void (*func)(NSModule module))
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(void (*func)(NSModule module)) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_register_func_for_unlink_module", (void**)&p);
+ p(func);
+}
+
+/*
+ * _dyld_register_func_for_replace_module registers the specified function to be
+ * called when a module is to be replace with another module in the program.
+ */
+void
+_dyld_register_func_for_replace_module(
+void (*func)(NSModule oldmodule, NSModule newmodule))
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(void (*func)(NSModule oldmodule,
+ NSModule newmodule)) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_register_func_for_replace_module", (void**)&p);
+ p(func);
+}
+
+
+/*
+ * _dyld_get_objc_module_sect_for_module is passed a module and sets a
+ * pointer to the (__OBJC,__module) section and its size for the specified
+ * module.
+ */
+void
+_dyld_get_objc_module_sect_for_module(
+NSModule module,
+void **objc_module,
+unsigned long *size)
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(NSModule module,
+ void **objc_module,
+ unsigned long *size) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_get_objc_module_sect_for_module", (void**)&p);
+ p(module, objc_module, size);
+}
+
+#endif
+
+#if DEPRECATED_APIS_SUPPORTED
+bool
+_dyld_present(void)
+{
+ // this function exists for compatiblity only
+ return true;
+}
+#endif
+
+uint32_t
+_dyld_image_count(void)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_image_count();
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static uint32_t (*p)(void) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_image_count", (void**)&p);
+ return(p());
+}
+
+const struct mach_header *
+_dyld_get_image_header(uint32_t image_index)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_header(image_index);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static struct mach_header * (*p)(uint32_t image_index) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_get_image_header", (void**)&p);
+ return(p(image_index));
+}
+
+intptr_t
+_dyld_get_image_vmaddr_slide(uint32_t image_index)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_vmaddr_slide(image_index);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static unsigned long (*p)(uint32_t image_index) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_get_image_vmaddr_slide", (void**)&p);
+ return(p(image_index));
+}
+
+const char*
+_dyld_get_image_name(uint32_t image_index)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_name(image_index);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static const char* (*p)(uint32_t image_index) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_get_image_name", (void**)&p);
+ return(p(image_index));
+}
+
+// SPI in Mac OS X 10.6
+intptr_t _dyld_get_image_slide(const struct mach_header* mh)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_slide(mh);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static intptr_t (*p)(const struct mach_header*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_get_image_slide", (void**)&p);
+ return(p(mh));
+}
+
+
+#if DEPRECATED_APIS_SUPPORTED
+bool
+_dyld_image_containing_address(const void* address)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_image_containing_address(address);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(const void*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_image_containing_address", (void**)&p);
+ return(p(address));
+}
+
+const struct mach_header *
+_dyld_get_image_header_containing_address(
+const void* address)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_header_containing_address(address);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static const struct mach_header * (*p)(const void*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_get_image_header_containing_address", (void**)&p);
+ return p(address);
+}
+
+bool _dyld_launched_prebound(void)
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(void) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_launched_prebound", (void**)&p);
+ return(p());
+}
+
+bool _dyld_all_twolevel_modules_prebound(void)
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(void) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_all_twolevel_modules_prebound", (void**)&p);
+ return(p());
+}
+#endif // DEPRECATED_APIS_SUPPORTED
+
+
+#include <dlfcn.h>
+#include <stddef.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <mach-o/dyld.h>
+#include <servers/bootstrap.h>
+#include "dyldLibSystemInterface.h"
+
+
+// pthread key used to access per-thread dlerror message
+static pthread_key_t dlerrorPerThreadKey;
+static bool dlerrorPerThreadKeyInitialized = false;
+
+// data kept per-thread
+struct dlerrorPerThreadData
+{
+ size_t sizeAllocated;
+ char message[1];
+};
+
+// function called by dyld to get buffer to store dlerror message
+static char* getPerThreadBufferFor_dlerror(size_t sizeRequired)
+{
+ // ok to create key lazily because this function is called within dyld lock, so there is no race condition
+ if (!dlerrorPerThreadKeyInitialized ) {
+ // create key and tell pthread package to call free() on any data associated with key if thread dies
+ pthread_key_create(&dlerrorPerThreadKey, &free);
+ dlerrorPerThreadKeyInitialized = true;
+ }
+
+ const size_t size = (sizeRequired < 256) ? 256 : sizeRequired;
+ dlerrorPerThreadData* data = (dlerrorPerThreadData*)pthread_getspecific(dlerrorPerThreadKey);
+ if ( data == NULL ) {
+ //int mallocSize = offsetof(dlerrorPerThreadData, message[size]);
+ const size_t mallocSize = sizeof(dlerrorPerThreadData)+size;
+ data = (dlerrorPerThreadData*)malloc(mallocSize);
+ data->sizeAllocated = size;
+ pthread_setspecific(dlerrorPerThreadKey, data);
+ }
+ else if ( data->sizeAllocated < sizeRequired ) {
+ free(data);
+ //int mallocSize = offsetof(dlerrorPerThreadData, message[size]);
+ const size_t mallocSize = sizeof(dlerrorPerThreadData)+size;
+ data = (dlerrorPerThreadData*)malloc(mallocSize);
+ data->sizeAllocated = size;
+ pthread_setspecific(dlerrorPerThreadKey, data);
+ }
+ return data->message;
+}
+
+// <rdar://problem/10595338> dlerror buffer leak
+// Only allocate buffer if an actual error message needs to be set
+static bool hasPerThreadBufferFor_dlerror()
+{
+ if (!dlerrorPerThreadKeyInitialized )
+ return false;
+
+ return (pthread_getspecific(dlerrorPerThreadKey) != NULL);
+}
+
+// use non-lazy pointer to vproc_swap_integer so that lazy binding does not recurse
+typedef vproc_err_t (*vswapproc)(vproc_t vp, vproc_gsk_t key,int64_t *inval, int64_t *outval);
+static vswapproc swapProc = &vproc_swap_integer;
+
+static bool isLaunchdOwned()
+{
+ int64_t val = 0;
+ (*swapProc)(NULL, VPROC_GSK_IS_MANAGED, NULL, &val);
+ return ( val != 0 );
+}
+
+static void shared_cache_missing()
+{
+ // leave until dyld's that might call this are rare
+}
+
+static void shared_cache_out_of_date()
+{
+ // leave until dyld's that might call this are rare
+}
+
+
+// the table passed to dyld containing thread helpers
+static dyld::LibSystemHelpers sHelpers = { 13, &dyldGlobalLockAcquire, &dyldGlobalLockRelease,
+ &getPerThreadBufferFor_dlerror, &malloc, &free, &__cxa_atexit,
+ &shared_cache_missing, &shared_cache_out_of_date,
+ NULL, NULL,
+ &pthread_key_create, &pthread_setspecific,
+ &malloc_size,
+ &pthread_getspecific,
+ &__cxa_finalize,
+ address_of_start,
+ &hasPerThreadBufferFor_dlerror,
+ &isLaunchdOwned,
+ &vm_allocate,
+ &mmap,
+ &__cxa_finalize_ranges
+ };
+
+
+//
+// during initialization of libSystem this routine will run
+// and call dyld, registering the helper functions.
+//
+extern "C" void tlv_initializer();
+void _dyld_initializer()
+{
+ void (*p)(dyld::LibSystemHelpers*);
+
+ if ( gUseDyld3 ) {
+ dyld3::gAllImages.applyInitialImages();
+ }
+ else {
+ _dyld_func_lookup("__dyld_register_thread_helpers", (void**)&p);
+ if(p != NULL)
+ p(&sHelpers);
+ }
+
+ tlv_initializer();
+}
+
+
+char* dlerror()
+{
+ if ( gUseDyld3 )
+ return dyld3::dlerror();
+
+ DYLD_LOCK_THIS_BLOCK;
+ static char* (*p)() = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dlerror", (void**)&p);
+ return(p());
+}
+
+int dladdr(const void* addr, Dl_info* info)
+{
+ if ( gUseDyld3 )
+ return dyld3::dladdr(addr, info);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static int (*p)(const void* , Dl_info*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dladdr", (void**)&p);
+ return(p(addr, info));
+}
+
+int dlclose(void* handle)
+{
+ if ( gUseDyld3 )
+ return dyld3::dlclose(handle);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static int (*p)(void* handle) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dlclose", (void**)&p);
+ return(p(handle));
+}
+
+void* dlopen(const char* path, int mode)
+{
+ if ( gUseDyld3 )
+ return dyld3::dlopen(path, mode);
+
+ // dlopen is special. locking is done inside dyld to allow initializer to run without lock
+ DYLD_NO_LOCK_THIS_BLOCK;
+
+ static void* (*p)(const char* path, int) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dlopen", (void**)&p);
+ void* result = p(path, mode);
+ // use asm block to prevent tail call optimization
+ // this is needed because dlopen uses __builtin_return_address() and depends on this glue being in the frame chain
+ // <rdar://problem/5313172 dlopen() looks too far up stack, can cause crash>
+ __asm__ volatile("");
+
+ return result;
+}
+
+bool dlopen_preflight(const char* path)
+{
+ if ( gUseDyld3 )
+ return dyld3::dlopen_preflight(path);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(const char* path) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dlopen_preflight", (void**)&p);
+ return(p(path));
+}
+
+void* dlsym(void* handle, const char* symbol)
+{
+ if ( gUseDyld3 )
+ return dyld3::dlsym(handle, symbol);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static void* (*p)(void* handle, const char* symbol) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dlsym", (void**)&p);
+ return(p(handle, symbol));
+}
+
+const struct dyld_all_image_infos* _dyld_get_all_image_infos()
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_all_image_infos();
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static struct dyld_all_image_infos* (*p)() = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_get_all_image_infos", (void**)&p);
+ return p();
+}
+
+#if SUPPORT_ZERO_COST_EXCEPTIONS
+bool _dyld_find_unwind_sections(void* addr, dyld_unwind_sections* info)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_find_unwind_sections(addr, info);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static void* (*p)(void*, dyld_unwind_sections*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_find_unwind_sections", (void**)&p);
+ return p(addr, info);
+}
+#endif
+
+
+#if __i386__ || __x86_64__ || __arm__ || __arm64__
+__attribute__((visibility("hidden")))
+void* _dyld_fast_stub_entry(void* loadercache, long lazyinfo)
+{
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static void* (*p)(void*, long) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_fast_stub_entry", (void**)&p);
+ return p(loadercache, lazyinfo);
+}
+#endif
+
+
+const char* dyld_image_path_containing_address(const void* addr)
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_image_path_containing_address(addr);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static const char* (*p)(const void*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_image_path_containing_address", (void**)&p);
+ return p(addr);
+}
+
+const struct mach_header* dyld_image_header_containing_address(const void* addr)
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_image_header_containing_address(addr);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static const mach_header* (*p)(const void*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_get_image_header_containing_address", (void**)&p);
+ return p(addr);
+}
+
+
+bool dyld_shared_cache_some_image_overridden()
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_shared_cache_some_image_overridden();
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static bool (*p)() = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_shared_cache_some_image_overridden", (void**)&p);
+ return p();
+}
+
+bool _dyld_get_shared_cache_uuid(uuid_t uuid)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_shared_cache_uuid(uuid);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static bool (*p)(uuid_t) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_get_shared_cache_uuid", (void**)&p);
+ return p(uuid);
+}
+
+const void* _dyld_get_shared_cache_range(size_t* length)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_shared_cache_range(length);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static const void* (*p)(size_t*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_get_shared_cache_range", (void**)&p);
+ return p(length);
+}
+
+
+bool dyld_process_is_restricted()
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_process_is_restricted();
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static bool (*p)() = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_process_is_restricted", (void**)&p);
+ return p();
+}
+
+const char* dyld_shared_cache_file_path()
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_shared_cache_file_path();
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static const char* (*p)() = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_shared_cache_file_path", (void**)&p);
+ return p();
+}
+
+void dyld_dynamic_interpose(const struct mach_header* mh, const struct dyld_interpose_tuple array[], size_t count)
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_dynamic_interpose(mh, array, count);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(const struct mach_header* mh, const struct dyld_interpose_tuple array[], size_t count) = NULL;
+
+ if (p == NULL)
+ _dyld_func_lookup("__dyld_dynamic_interpose", (void**)&p);
+ p(mh, array, count);
+}
+
+
+// SPI called __fork
+void _dyld_fork_child()
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_fork_child();
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static void (*p)() = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_fork_child", (void**)&p);
+ return p();
+}
+
+
+
+static void* mapStartOfCache(const char* path, size_t length)
+{
+ struct stat statbuf;
+ if ( ::stat(path, &statbuf) == -1 )
+ return NULL;
+
+ if ( statbuf.st_size < length )
+ return NULL;
+
+ int cache_fd = ::open(path, O_RDONLY);
+ if ( cache_fd < 0 )
+ return NULL;
+
+ void* result = ::mmap(NULL, length, PROT_READ, MAP_PRIVATE, cache_fd, 0);
+ close(cache_fd);
+
+ if ( result == MAP_FAILED )
+ return NULL;
+
+ return result;
+}
+
+
+static const dyld_cache_header* findCacheInDirAndMap(const uuid_t cacheUuid, const char* dirPath)
+{
+ DIR* dirp = ::opendir(dirPath);
+ if ( dirp != NULL) {
+ dirent entry;
+ dirent* entp = NULL;
+ char cachePath[PATH_MAX];
+ while ( ::readdir_r(dirp, &entry, &entp) == 0 ) {
+ if ( entp == NULL )
+ break;
+ if ( entp->d_type != DT_REG )
+ continue;
+ if ( strlcpy(cachePath, dirPath, PATH_MAX) >= PATH_MAX )
+ continue;
+ if ( strlcat(cachePath, "/", PATH_MAX) >= PATH_MAX )
+ continue;
+ if ( strlcat(cachePath, entp->d_name, PATH_MAX) >= PATH_MAX )
+ continue;
+ if ( const dyld_cache_header* cacheHeader = (dyld_cache_header*)mapStartOfCache(cachePath, 0x00100000) ) {
+ if ( ::memcmp(cacheHeader->uuid, cacheUuid, 16) != 0 ) {
+ // wrong uuid, unmap and keep looking
+ ::munmap((void*)cacheHeader, 0x00100000);
+ }
+ else {
+ // found cache
+ closedir(dirp);
+ return cacheHeader;
+ }
+ }
+ }
+ closedir(dirp);
+ }
+ return NULL;
+}
+
+int dyld_shared_cache_find_iterate_text(const uuid_t cacheUuid, const char* extraSearchDirs[], void (^callback)(const dyld_shared_cache_dylib_text_info* info))
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_shared_cache_find_iterate_text(cacheUuid, extraSearchDirs, callback);
+
+ const dyld_cache_header* cacheHeader = NULL;
+ bool needToUnmap = true;
+
+ // get info from dyld about this process, to see if requested cache is already mapped into this process
+ const dyld_all_image_infos* allInfo = _dyld_get_all_image_infos();
+ if ( (allInfo != NULL) && (allInfo->sharedCacheBaseAddress != 0) && (memcmp(allInfo->sharedCacheUUID, cacheUuid, 16) == 0) ) {
+ // requested cache is already mapped, just re-use it
+ cacheHeader = (dyld_cache_header*)(allInfo->sharedCacheBaseAddress);
+ needToUnmap = false;
+ }
+ else {
+ // look first is default location for cache files
+ #if __IPHONE_OS_VERSION_MIN_REQUIRED
+ const char* defaultSearchDir = IPHONE_DYLD_SHARED_CACHE_DIR;
+ #else
+ const char* defaultSearchDir = MACOSX_DYLD_SHARED_CACHE_DIR;
+ #endif
+ cacheHeader = findCacheInDirAndMap(cacheUuid, defaultSearchDir);
+ // if not there, look in extra search locations
+ if ( cacheHeader == NULL ) {
+ for (const char** p = extraSearchDirs; *p != NULL; ++p) {
+ cacheHeader = findCacheInDirAndMap(cacheUuid, *p);
+ if ( cacheHeader != NULL )
+ break;
+ }
+ }
+ }
+
+ if ( cacheHeader == NULL )
+ return -1;
+
+ if ( cacheHeader->mappingOffset < sizeof(dyld_cache_header) ) {
+ // old cache without imagesText array
+ if ( needToUnmap )
+ ::munmap((void*)cacheHeader, 0x00100000);
+ return -1;
+ }
+
+ // walk imageText table and call callback for each entry
+ const dyld_cache_mapping_info* mappings = (dyld_cache_mapping_info*)((char*)cacheHeader + cacheHeader->mappingOffset);
+ const uint64_t cacheUnslidBaseAddress = mappings[0].address;
+ const dyld_cache_image_text_info* imagesText = (dyld_cache_image_text_info*)((char*)cacheHeader + cacheHeader->imagesTextOffset);
+ const dyld_cache_image_text_info* imagesTextEnd = &imagesText[cacheHeader->imagesTextCount];
+ for (const dyld_cache_image_text_info* p=imagesText; p < imagesTextEnd; ++p) {
+ dyld_shared_cache_dylib_text_info dylibTextInfo;
+ dylibTextInfo.version = 2;
+ dylibTextInfo.loadAddressUnslid = p->loadAddress;
+ dylibTextInfo.textSegmentSize = p->textSegmentSize;
+ dylibTextInfo.path = (char*)cacheHeader + p->pathOffset;
+ ::memcpy(dylibTextInfo.dylibUuid, p->uuid, 16);
+ dylibTextInfo.textSegmentOffset = p->loadAddress - cacheUnslidBaseAddress;
+ callback(&dylibTextInfo);
+ }
+
+ if ( needToUnmap )
+ ::munmap((void*)cacheHeader, 0x00100000);
+
+ return 0;
+}
+
+int dyld_shared_cache_iterate_text(const uuid_t cacheUuid, void (^callback)(const dyld_shared_cache_dylib_text_info* info))
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_shared_cache_iterate_text(cacheUuid, callback);
+
+ const char* extraSearchDirs[] = { NULL };
+ return dyld_shared_cache_find_iterate_text(cacheUuid, extraSearchDirs, callback);
+}
+
+
+bool _dyld_is_memory_immutable(const void* addr, size_t length)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_is_memory_immutable(addr, length);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static bool (*p)(const void*, size_t) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_is_memory_immutable", (void**)&p);
+ return p(addr, length);
+}
+
+
+void _dyld_objc_notify_register(_dyld_objc_notify_mapped mapped,
+ _dyld_objc_notify_init init,
+ _dyld_objc_notify_unmapped unmapped)
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_objc_notify_register(mapped, init, unmapped);
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(_dyld_objc_notify_mapped, _dyld_objc_notify_init, _dyld_objc_notify_unmapped) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_objc_notify_register", (void**)&p);
+ p(mapped, init, unmapped);
+}
+
+
+
+
+