使用class-dump工具反編譯Objective-C

標籤：

class-dump是一款非常好用的Objective-C反編譯分析工具，它可以從Objective-C編譯產生的二進位檔案中將類定義以Objective-C標頭檔的方式提取出來。

class-dump是一款開源工具，官網地址是：http://stevenygard.com/projects/class-dump/

使用參數為：

class-dump 3.5 (64 bit)Usage: class-dump [options] <mach-o-file>  where options are:        -a             show instance variable offsets        -A             show implementation addresses        --arch <arch>  choose a specific architecture from a universal binary (ppc, ppc64, i386, x86_64)        -C <regex>     only display classes matching regular expression        -f <str>       find string in method name        -H             generate header files in current directory, or directory specified with -o        -I             sort classes, categories, and protocols by inheritance (overrides -s)        -o <dir>       output directory used for -H        -r             recursively expand frameworks and fixed VM shared libraries        -s             sort classes and categories by name        -S             sort methods by name        -t             suppress header in output, for testing        --list-arches  list the arches in the file, then exit        --sdk-ios      specify iOS SDK version (will look in /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS<version>.sdk        --sdk-mac      specify Mac OS X version (will look in /Developer/SDKs/MacOSX<version>.sdk        --sdk-root     specify the full SDK root path (or use --sdk-ios/--sdk-mac for a shortcut)

使用舉例：
加入在class-dump工具在目前的目錄下，要分析的檔案為myApp.app，也在目前的目錄下，要將匯出的標頭檔放在目前的目錄下的ExportHeader目錄內，則命令為
./class-dump -H myApp.app -o ./ExportHeader

使用class-dump工具反編譯Objective-C