查看iOS/Mac 的私有API - 使用class-dump

最新推荐文章于 2023-03-18 21:01:26 发布

转载最新推荐文章于 2023-03-18 21:01:26 发布 · 2.2k 阅读

文章标签：

#api #objective-c

开发工具专栏收录该内容

3 篇文章

订阅专栏

本文介绍了如何使用class-dump工具来分析和理解Mach-O文件中的Objective-C部分，包括类、类别和协议的声明。提供了详细的命令行使用方法，以及在不同iOS SDK版本下进行分析的步骤。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

下载class-dump，http://stevenygard.com/projects/class-dump/
将class-dump放在usr/bin目录中。
在命令行中使用class-dump。

class-dump is a command-line utility for examining the Objective-C
segment of Mach-O files. It generates declarations for the classes,
categories and protocols. This is the same information provided by
using ‘otool -ov’, but presented as normal Objective-C declarations.

The latest version and information is available at:

http://stevenygard.com/projects/class-dump

The source code is also available from my Github repository at:

https://github.com/nygard/class-dump

Usage

class-dump 3.4 (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)

class-dump AppKit:

class-dump /System/Library/Frameworks/AppKit.framework
class-dump UIKit:

class-dump /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/System/Library/Frameworks/UIKit.framework
class-dump UIKit and all the frameworks it uses:

class-dump /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/System/Library/Frameworks/UIKit.framework -r –sdk-ios 4.3
class-dump UIKit (and all the frameworks it uses) from developer tools that have been installed in /Dev42 instead of /Developer:

class-dump /Dev42/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk/System/Library/Frameworks/UIKit.framework -r –sdk-root /Dev42/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk