Starting from iPhoneOS 3.1, all default libraries are combined into a big cache file in /System/Library/Caches/com.apple.dyld/dyld_shared_cache_armv6 (or _armv7) to improve performance. The original files are no longer useful for non-on-device-developers, so they are eliminated from the system.
Cache Extraction
Developers who does not use the SDK cannot link programs on the iPhoneOS directly due to the missing dylibs. One first need to extract the appropriate dylibs from the dyld_shared_cache. A tool dyldcache[1] has been written for this purpose. Note that, if everything is extracted, the total size will be over 4 GB, so be sure to clear up some space.
| List of recognized libraries that are in dyld_shared_cache (on iPod Touch 1G) | |
|---|---|
| /System/Library/CoreServices/Encodings/ | libArabicConverter.dylib |
| libCyrillicConverter.dylib | |
| libGreekConverter.dylib | |
| libHebrewConverter.dylib | |
| libJapaneseConverter.dylib | |
| libKoreanConverter.dylib | |
| libLatin2Converter.dylib | |
| libLatin5Converter.dylib | |
| libLatinSuppConverter.dylib | |
| libSimplifiedChineseConverter.dylib | |
| libSymbolConverter.dylib | |
| libThaiConverter.dylib | |
| libTraditionalChineseConverter.dylib | |
| libVietnameseConverter.dylib | |
| /System/Library/Frameworks/ | AVFoundation.framework/AVFoundation |
| AddressBook.framework/AddressBook | |
| AddressBookUI.framework/AddressBookUI | |
| AudioToolbox.framework/AudioCodecs | |
| AudioToolbox.framework/AudioToolbox | |
| CFNetwork.framework/CFNetwork | |
| CoreAudio.framework/CoreAudio | |
| CoreData.framework/CoreData | |
| CoreFoundation.framework/CoreFoundation | |
| CoreGraphics.framework/CoreGraphics | |
| CoreGraphics.framework/Resources/libCGFreetype.A.dylib | |
| CoreGraphics.framework/Resources/libCGFreetype.dylib | |
| CoreGraphics.framework/Resources/libCGVolute.A.dylib | |
| CoreGraphics.framework/Resources/libCMaps.A.dylib | |
| CoreGraphics.framework/Resources/libJBIG2.A.dylib | |
| CoreGraphics.framework/Resources/libJBIG2.dylib | |
| CoreGraphics.framework/Resources/libPDFRIP.A.dylib | |
| CoreGraphics.framework/Resources/libRIP.A.dylib | |
| CoreLocation.framework/CoreLocation | |
| ExternalAccessory.framework/ExternalAccessory | |
| Foundation.framework/Foundation | |
| GameKit.framework/GameKit | |
| IOKit.framework/IOKit | |
| IOKit.framework/Versions/A/IOKit | |
| MapKit.framework/MapKit | |
| MediaPlayer.framework/MediaPlayer | |
| MessageUI.framework/MessageUI | |
| MobileCoreServices.framework/MobileCoreServices | |
| OpenAL.framework/OpenAL | |
| OpenGLES.framework/OpenGLES | |
| QuartzCore.framework/QuartzCore | |
| Security.framework/Security | |
| StoreKit.framework/StoreKit | |
| System.framework/System | |
| System.framework/Versions/B/System | |
| SystemConfiguration.framework/SystemConfiguration | |
| UIKit.framework/UIKit | |
| /System/Library/ManagedConfigurationBundles/ | MCAPNConfigurationBundle.bundle/MCAPNConfigurationBundle |
| MCCalDAVConfigurationBundle.bundle/MCCalDAVConfigurationBundle | |
| MCEASConfigurationBundle.bundle/MCEASConfigurationBundle | |
| MCEmailConfigurationBundle.bundle/MCEmailConfigurationBundle | |
| MCLDAPConfigurationBundle.bundle/MCLDAPConfigurationBundle | |
| MCNetworkingConfigurationBundle.bundle/MCNetworkingConfigurationBundle | |
| MCSubCalConfigurationBundle.bundle/MCSubCalConfigurationBundle | |
| /System/Library/PreferenceBundles/ | AccountSettings/ActiveSyncSettings.bundle/ActiveSyncSettings |
| AccountSettings/CalDAVSettings.bundle/CalDAVSettings | |
| AccountSettings/ContactsSettings.bundle/ContactsSettings | |
| AccountSettings/DeviceLocalAccountSettings.bundle/DeviceLocalAccountSettings | |
| AccountSettings/LDAPSettings.bundle/LDAPSettings | |
| AccountSettings/MobileCalSettings.bundle/MobileCalSettings | |
| AccountSettings/MobileMailSettings.bundle/MobileMailSettings | |
| AccountSettings/SubscribedCalendarSettings.bundle/SubscribedCalendarSettings | |
| AccountSettingsUI.bundle/AccountSettingsUI | |
| AirPortSettings.bundle/AirPortSettings | |
| BluetoothSettings.bundle/BluetoothSettings | |
| EDGESettings.bundle/EDGESettings | |
| ManagedConfigurationUI.bundle/ManagedConfigurationUI | |
| MobileSafariSettings.bundle/MobileSafariSettings | |
| MobileSlideShowSettings.bundle/MobileSlideShowSettings | |
| MobileStoreSettings.bundle/MobileStoreSettings | |
| MusicSettings.bundle/MusicSettings | |
| NotificationSettings.bundle/NotificationSettings | |
| ScheduleSettings.bundle/ScheduleSettings | |
| VPNPreferences.bundle/VPNPreferences | |
| VideoSettings.bundle/VideoSettings | |
| Wallpaper.bundle/Wallpaper | |
| iPodSettings.bundle/iPodSettings | |
| /System/Library/PrivateFrameworks/ | AOSNotification.framework/AOSNotification |
| Accelerate.framework/Accelerate | |
| Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib | |
| Accelerate.framework/Frameworks/vecLib.framework/libLAPACK.dylib | |
| Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib | |
| Accelerate.framework/Frameworks/vecLib.framework/vecLib | |
| AccessorySupport.framework/AccessorySupport | |
| AccountSettings.framework/AccountSettings | |
| AccountSettingsUI.framework/AccountSettingsUI | |
| ActorKit.framework/ActorKit | |
| AdminLite.framework/AdminLite | |
| AggregateDictionary.framework/AggregateDictionary | |
| AppSupport.framework/AppSupport | |
| AppleJPEG.framework/AppleJPEG | |
| ApplePushService.framework/ApplePushService | |
| ArtworkCache.framework/ArtworkCache | |
| BluetoothManager.framework/BluetoothManager | |
| Bom.framework/Bom | |
| Calculate.framework/Calculate | |
| Calendar.framework/Calendar | |
| CalendarUI.framework/CalendarUI | |
| Camera.framework/Camera | |
| Celestial.framework/Celestial | |
| ChatKit.framework/ChatKit | |
| ContentIndex.framework/ContentIndex | |
| CoreMedia.framework/CoreMedia | |
| CoreSurface.framework/CoreSurface | |
| CoreTelephony.framework/CoreTelephony | |
| CoreTelephonyBypass.framework/CoreTelephonyBypass | |
| CoreText.framework/CoreText | |
| CoreVideo.framework/CoreVideo | |
| CrashReporterSupport.framework/CrashReporterSupport | |
| DAVKit.framework/DAVKit | |
| DataAccess.framework/DataAccess | |
| DataAccessExpress.framework/DataAccessExpress | |
| DataDetectorsCore.framework/DataDetectorsCore | |
| DataDetectorsUI.framework/DataDetectorsUI | |
| DataMigration.framework/DataMigration | |
| DeviceToDeviceManager.framework/DeviceToDeviceManager | |
| EAP8021X.framework/EAP8021X | |
| GMM.framework/GMM | |
| GraphicsServices.framework/GraphicsServices | |
| IAP.framework/IAP | |
| IOMobileFramebuffer.framework/IOMobileFramebuffer | |
| IOSurface.framework/IOSurface | |
| ITSync.framework/ITSync | |
| ImageIO.framework/ImageIO | |
| JSON.framework/JSON | |
| JavaScriptCore.framework/JavaScriptCore | |
| LDAP.framework/LDAP | |
| MBX2D.framework/MBX2D | |
| MIME.framework/MIME | |
| ManagedConfiguration.framework/ManagedConfiguration | |
| MediaToolbox.framework/MediaToolbox | |
| Message.framework/Message | |
| MobileBluetooth.framework/MobileBluetooth | |
| MobileDeviceLink.framework/MobileDeviceLink | |
| MobileInstallation.framework/MobileInstallation | |
| MobileMusicPlayer.framework/MobileMusicPlayer | |
| MobileQuickLook.framework/MobileQuickLook | |
| MobileSync.framework/MobileSync | |
| MobileWiFi.framework/MobileWiFi | |
| MobileWirelessSync.framework/MobileWirelessSync | |
| MultitouchSupport.framework/MultitouchSupport | |
| MusicLibrary.framework/MusicLibrary | |
| Notes.framework/Notes | |
| OfficeImport.framework/OfficeImport | |
| PersistentConnection.framework/PersistentConnection | |
| PhotoLibrary.framework/PhotoLibrary | |
| Preferences.framework/Preferences | |
| ProtocolBuffer.framework/ProtocolBuffer | |
| SMSCTServer.framework/SMSCTServer | |
| Search.framework/Search | |
| ServiceManagement.framework/ServiceManagement | |
| SpringBoardServices.framework/SpringBoardServices | |
| SpringBoardUI.framework/SpringBoardUI | |
| Symbolication.framework/Symbolication | |
| TelephonyUI.framework/TelephonyUI | |
| TextInput.framework/TextInput | |
| VideoToolbox.framework/VideoToolbox | |
| VisualVoicemail.framework/VisualVoicemail | |
| WebCore.framework/WebCore | |
| WebKit.framework/WebKit | |
| WebUI.framework/WebUI | |
| XMPP.framework/XMPP | |
| YouTube.framework/YouTube | |
| iCalendar.framework/iCalendar | |
| iTunesStore.framework/iTunesStore | |
| iTunesStoreUI.framework/iTunesStoreUI | |
| iWorkImport.framework/iWorkImport | |
| /System/Library/PublishingBundles/ | PublishToMobileMe.bundle/PublishToMobileMe |
| PublishToYouTube.bundle/PublishToYouTube | |
| /System/Library/SearchBundles/ | AddressBook.searchBundle/AddressBook |
| MobileCal.searchBundle/MobileCal | |
| MobileMail.searchBundle/MobileMail | |
| MobileNotes.searchBundle/MobileNotes | |
| iPod.searchBundle/iPod | |
| /System/Library/SystemConfiguration/ | CaptiveNetworkSupport.bundle/CaptiveNetworkSupport |
| /System/Library/TextInput/ | TextInput_ar.bundle/TextInput_ar |
| TextInput_cs.bundle/TextInput_cs | |
| TextInput_de.bundle/TextInput_de | |
| TextInput_el.bundle/TextInput_el | |
| TextInput_emoji.bundle/TextInput_emoji | |
| TextInput_fr.bundle/TextInput_fr | |
| TextInput_he.bundle/TextInput_he | |
| TextInput_it.bundle/TextInput_it | |
| TextInput_ja.bundle/TextInput_ja | |
| TextInput_ko.bundle/TextInput_ko | |
| TextInput_ru.bundle/TextInput_ru | |
| TextInput_sk.bundle/TextInput_sk | |
| TextInput_th.bundle/TextInput_th | |
| TextInput_tr.bundle/TextInput_tr | |
| TextInput_uk.bundle/TextInput_uk | |
| TextInput_zh.bundle/TextInput_zh | |
| /System/Library/VideoDecoders/ | H264H1.videodecoder |
| MP4VH1.videodecoder | |
| VCH263.videodecoder | |
| /System/Library/VideoEncoders/ | JPEGH1.videoencoder |
| VCH263.videoencoder | |
| /usr/lib/ | libIOAccessoryManager.dylib |
| libQLCharts.dylib | |
| libSystem.B.dylib | |
| libSystem.dylib | |
| libafc.dylib | |
| libblas.dylib | |
| libbsm.0.dylib | |
| libbsm.dylib | |
| libbz2.1.0.4.dylib | |
| libbz2.1.0.dylib | |
| libbz2.dylib | |
| libc.dylib | |
| libcblas.dylib | |
| libcharset.1.dylib | |
| libcharset.dylib | |
| libclapack.dylib | |
| libcurses.dylib | |
| libdbm.dylib | |
| libdl.dylib | |
| libedit.2.9.dylib | |
| libedit.2.dylib | |
| libexslt.0.dylib | |
| libform.5.4.dylib | |
| libform.dylib | |
| libgcc_s.1.dylib | |
| libgermantok.dylib | |
| libiconv.2.4.0.dylib | |
| libiconv.2.dylib | |
| libicucore.A.dylib | |
| libicucore.dylib | |
| libinfo.dylib | |
| libipsec.A.dylib | |
| libipsec.dylib | |
| liblangid.dylib | |
| liblapack.dylib | |
| liblockdown.dylib | |
| libm.dylib | |
| libmecab_em.dylib | |
| libmecabra.dylib | |
| libmis.dylib | |
| libncurses.5.4.dylib | |
| libncurses.dylib | |
| libobjc.A.dylib | |
| libobjc.dylib | |
| libpoll.dylib | |
| libproc.dylib | |
| libpthread.dylib | |
| libresolv.9.dylib | |
| libresolv.dylib | |
| librpcsvc.dylib | |
| libsqlite3.0.dylib | |
| libsqlite3.dylib | |
| libstdc++.6.0.9.dylib | |
| libstdc++.6.dylib | |
| libtidy.A.dylib | |
| libutil.dylib | |
| libutil1.0.dylib | |
| libxml2.2.7.3.dylib | |
| libxml2.2.dylib | |
| libxml2.dylib | |
| libxslt.1.dylib | |
| libxslt.dylib | |
| libz.1.1.3.dylib | |
| libz.1.2.3.dylib | |
| libz.1.dylib | |
| libz.dylib | |
| system/libkxld.dylib | |
References
- Cache or Check? — an analysis of the dyld_shared_cache system by D. Howett.