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The iPhone Wiki is no longer updated. Visit this article on The Apple Wiki for current information. |
Difference between revisions of "Dyld shared cache"
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| − | == |
+ | == The dyld_shared_cache == |
| − | Since iPhone OS 3.1, all system (private and public) libraries have been combined into a big cache file to improve performance. |
+ | "Since iPhone OS 3.1, all system (private and public) libraries have been combined into a big cache file to improve performance. |
The original files are redundant and thus eliminated from the system. |
The original files are redundant and thus eliminated from the system. |
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If you're looking for binaries or libraries inside of /System/Library/Frameworks or /System/Library/PrivateFrameworks (or other directories) and can't, this is why. |
If you're looking for binaries or libraries inside of /System/Library/Frameworks or /System/Library/PrivateFrameworks (or other directories) and can't, this is why. |
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| − | OS X also uses a shared cache. |
+ | OS X also uses a shared cache. |
Unlike iOS, OS X ships with the source binaries still on-disk, particularly so it can be updated with update_dyld_shared_cache. |
Unlike iOS, OS X ships with the source binaries still on-disk, particularly so it can be updated with update_dyld_shared_cache. |
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| − | The cache is only vaguely documented in dyld man pages. |
+ | The cache is only vaguely documented in dyld man pages." - [http://iphonedevwiki.net/index.php/Dyld_shared_cache The iPhone Dev Wiki] |
| + | The binaries inside the dyld_shared_cache can be used to create C header files from by using [http://stevenygard.com/projects/class-dump/ classdump]. |
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| − | == Extracted dyld_shared_caches |
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| + | |||
| − | [https://github.com/coffeebreakerz/iOS1031-dyld_shared_cache iOS 10.3.1 ARM64] |
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| + | With that header files using iOS Private API's is sometimes possible. |
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| + | |||
| + | == Location == |
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| + | In iOS 10, the dyld_shared_cache is located in /System/Library/Caches/com.apple.dyld/. |
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| + | The folder will contain caches for each CPU-Architecture. (eg: dyld_shared_cache_arm64.) |
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Latest revision as of 03:26, 14 September 2017
"Since iPhone OS 3.1, all system (private and public) libraries have been combined into a big cache file to improve performance. The original files are redundant and thus eliminated from the system. If you're looking for binaries or libraries inside of /System/Library/Frameworks or /System/Library/PrivateFrameworks (or other directories) and can't, this is why. OS X also uses a shared cache. Unlike iOS, OS X ships with the source binaries still on-disk, particularly so it can be updated with update_dyld_shared_cache. The cache is only vaguely documented in dyld man pages." - The iPhone Dev Wiki
The binaries inside the dyld_shared_cache can be used to create C header files from by using classdump.
With that header files using iOS Private API's is sometimes possible.
Location
In iOS 10, the dyld_shared_cache is located in /System/Library/Caches/com.apple.dyld/. The folder will contain caches for each CPU-Architecture. (eg: dyld_shared_cache_arm64.)
