xcode iPhone 应用程序的条形符号
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Strip symbols for iPhone application
提问by user88645
What are the settings in Xcode to strip symbols for an iphone application?
Xcode 中为 iPhone 应用程序去除符号的设置是什么？
I use these settings in Xcode but still see classnames and their methods in the executable using a binary file editor.
我在 Xcode 中使用这些设置，但仍然使用二进制文件编辑器在可执行文件中看到类名及其方法。
Deployment:
部署：
1) Deployment Post processing(checked)
1) 部署后处理（勾选）
2) Strip Debug Symbols During Copy(checked)
2) 在复制过程中去除调试符号（选中）
3) Strip Linked Product(checked)
3) 剥离链接产品（勾选）
4) Use Separate Strip(checked)
4）使用单独的条带（选中）
Linking:
链接：
5) Dead Code Stripping(checked)
5) 死代码剥离(勾选)
GCC 4.0 - Code Generation
GCC 4.0 - 代码生成
6) Generate Debug Symbols(NOT checked)
6）生成调试符号（未选中）
回答by Nicholas Riley
Objective-C class and method information can't be stripped - it is necessary for execution. Best you can do is come up with some kind of obfuscation, if you want.
Objective-C 类和方法信息不能被剥离——这是执行所必需的。如果你愿意，你能做的最好的事情就是提出某种混淆。
回答by osexp2003
I did it.
我做到了。
I only checked following three settings, other setting is irrelevant.
我只检查了以下三个设置，其他设置无关紧要。
1) Deployment Postprocessing (checked)
1）部署后处理（勾选）
3) Strip Linked Product (checked)
3) 剥离链接产品（选中）
4) Use Separate Strip (checked)
4）使用单独的条带（选中）
Of course, you need should check "Distribution" version in schema editor.
当然，您需要在模式编辑器中检查“分发”版本。
Then clean!!! and build.
然后清洗！！！并建立。
I'v also confirmed that "strip" command is called by Xcode: Show log navigator, select Build .... release, at the bottom, i found progress description:
我还确认Xcode调用了“strip”命令：Show log navigator，选择Build .... release，在底部，我找到了进度描述：
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip /Users/xxx/Library/Developer/Xcode/DerivedData/aaaaa-dytaamkvztdwfreoqteyeijwqdcu/Build/Products/Distribution-iphoneos/aaaaa.app/aaaaa
Finally, I'v checked the result by "nm" command to final product file,
最后，我通过“nm”命令检查了最终产品文件的结果，
nm -a /Users/xxx/Library/Developer/Xcode/DerivedData/aaaaa-dytaamkvztdwfreoqteyeijwqdcu/Build/Products/Distribution-iphoneos/aaaaa.app/aaaaa
nm -a /Users/xxx/Library/Developer/Xcode/DerivedData/aaaaa-dytaamkvztdwfreoqteyeijwqdcu/Build/Products/Distribution-iphoneos/aaaaa.app/aaaaa
All function name of current app is really stripped. Such as following function name :
当前应用程序的所有功能名称都被真正剥离了。如以下函数名：
000b0a00 t _pj_ioqueue_create
00092ae4 t ___destroy_helper_block_200
00092af8 t ___68-[MyClass myMethod:param2]_block_invoke_21782
000b0a00 t _pj_ioqueue_create
00092ae4 t ___destroy_helper_block_200
00092af8 t ___68-[MyClass myMethod:param2]_block_invoke_21782
Note: objective-C method and property name string are still produced to app file, but that is not symbol name for OS loader, they are just meta data of objective-C class.
注意：objective-C 方法和属性名称字符串仍然生成到应用程序文件，但这不是 OS 加载器的符号名称，它们只是objective-C 类的元数据。
