如何在 XCode 上创建移动 Substrate 插件？
我只是想创建一个 MS 插件来挂钩 SpringBoard。我正在关注这里的“gojohnnyboi”教程“ http://www.ipodtouchfans.com/forums/showthread.php?t=103558”。
要在 XCode 上创建 dylib，我遵循“SkylarEC” 教程。我混合了这两个很棒的教程，最终通过获得 dylib 获得了成功。但是当我将 dylib 放入 /Library/MobileSubstrate/DynamicLibraries/ 时，什么也没有发生（没有显示警报）。
通过评估，我发现，这个dylib在加载到内存时没有任何起点。因此，我通过在 .mm 文件中声明一个构造函数来提到一个起点，例如，
__ attribute__((constructor)) static void init()
{
Class _$SBAppIcon = objc_getClass("SBApplicationIcon");
MSHookMessage(_$SBAppIcon, @selector(launch), (IMP) &__$ExampleHook_AppIcon_Launch, "__OriginalMethodPrefix_");
}
但是当我尝试编译它时，我收到一个错误，例如，
**Undefined symbols:
"_MSHookMessage", referenced from:
init() in ExampleHook.o
ld: symbol(s) not found
collect2: ld returned 1 exit status.**
有人知道如何解决这个问题吗？如果有人分享在 XCode 上创建 dylib 的详细教程/说明，那就太好了，更有帮助。
PS我将所有libsubstrate.dylib和substrate.h文件放在相应的位置。位置是
- libsubstrate.dylib : /Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/substrate.h
- : /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/usr/include
我的基础 SDK 是 3.0。
I just wanna create a MS plugin to hook SpringBoard. I'm following "gojohnnyboi" tutorial from here "http://www.ipodtouchfans.com/forums/showthread.php?t=103558".
To create a dylib on XCode, I'm following "SkylarEC" tutorial. I mix these two great tutorials and finally got succeed by getting a dylib. But when I placed the dylib in the /Library/MobileSubstrate/DynamicLibraries/ nothing is happened (no alert was shown).
By evaluating, I found that, this dylib doesn't have any starting point when it was loaded into the memory. So I mentioned a starting point by declaring a constructor in the .mm file like,
__ attribute__((constructor)) static void init()
{
Class _$SBAppIcon = objc_getClass("SBApplicationIcon");
MSHookMessage(_$SBAppIcon, @selector(launch), (IMP) &__$ExampleHook_AppIcon_Launch, "__OriginalMethodPrefix_");
}
But when I'm trying to compile this, I'm getting an error like,
**Undefined symbols:
"_MSHookMessage", referenced from:
init() in ExampleHook.o
ld: symbol(s) not found
collect2: ld returned 1 exit status.**
Does anyone has idea how to solve this? It would be great and more helpful if anyone share the detailed tutorial/instructions to create a dylib on XCode.
P.S I placed all the libsubstrate.dylib and substrate.h files in the corresponding location. And the locations are,
- libsubstrate.dylib : /Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/
- substrate.h : /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/usr/include
and my base SDK is 3.0.
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您可能应该查看 iOSOpenDev
You should probably check out iOSOpenDev
（这些都是非常古老的教程。一些现代的 MS 代码可以在 http://iphonedevwiki.net/index 中找到.php/MobileSubstrate。最终有人需要编写更新的教程...）
确保您已在 Xcode 项目中添加了
libsubstrate.dylib（添加 → 现有文件...）。除非您指定，否则编译器不会自动查找要链接的 dylib。(These are very old tutorials. Some modern MS code can be found in http://iphonedevwiki.net/index.php/MobileSubstrate. Eventually someone needs to write an updated tutorial...)
Make sure you have added
libsubstrate.dylibin your Xcode project (Add → Existing files...). The compiler will not automatically find which dylib to link unless you tell it so.尝试 http://unlimapps.com/?p=15 使用它来编译插件会更容易那个帖子里的方法
Try http://unlimapps.com/?p=15 it will be much easier to compile plugins using the methods in that post
您必须将 CydiaSubstrate.framework 复制到 Mac 中的 /Library/Frameworks 并链接到 CydiaSubstrate
You have to copy CydiaSubstrate.framework to /Library/Frameworks in your mac and link to CydiaSubstrate