Xcode 7 Bitcode workflow and Security Evaluation
With the release of Xcode 7, Apple added a new feature Bitcode [1] For Xcode:
New features often mean new attack surfaces. This article first introduces Bitcode and Bitcode-related workflows. After familiarizing yourself with the B
Xcode 7 Bitcode workflow and Security Evaluation
With the release of Xcode 7, Apple added a new feature Bitcode for Xcode [1 ]:New features often mean new attack surfaces. This article first introduces Bitcode and Bitcode-related workflows. After familiarizing yourself with the Bit
ObjectiveiOS developers know that the latest Xcode7, the new project opens the Bitcode setting by default. And most of the developers are trapped by this sudden bitcode function, causing the project to fail to compile. And those projects that failed to compile because of bitcode have one thing in common, that is, a library or framework that links third-party bina
Bitcode Overview Bitcode is an intermediate representation of a compiled program. Apps you upload to ITunes Connect that contain bitcode'll be compiled and linked on the store. Including Bitcode'll allow Apple to re-optimize your app binary on the future without the need to submit a new version O F your app to the store. Xcode hides symbols generated during build time by default, so they is not readable by
What is Bitcode?Looking for something, the first thing to think about is to look at the official documents first. In the APP distribution Guide–app thinning (IOS, WatchOS) section, the following definition is found:Bitcode is an intermediate representation of a compiled program. Apps upload to ITunes Connect that contain bitcode'll be compiled and linked on the App Store. Including Bitcode'll allow Apple to re-optimize your app binary on the future wi
Link Address: http://www.it165.net/pro/html/201509/54172.htmlAfter upgrading Xcode, the real machine operation found error, third-party library errors, the SDK, the German SDK are error, as follows:View Sourceprint?1.‘/Users/**/Framework/SDKs/PolymerPay/Library/mobStat/lib**SDK.a(**ForSDK.o)’ does not contain bitcode. You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated
Original URL: http://www.cocoachina.com/ios/20150818/13078.htmlTry running our project on a real machine (IOS 8.3) with Xcode 7 Beta 3 today, and found that the project was compiled. The following error has been reported:
1
ld:‘/Users/**/Framework/SDKs/PolymerPay/Library/mobStat/lib**SDK.a(**ForSDK.o)’doesnotcontainbitcode.Youmustrebuilditwithbitcodeenabled(XcodesettingENABLE_BITCODE),obtainanupdatedlibraryfromthevendor,ordisablebitcodeforthis target.forarchitecturearm64
In development, it is unavoidable to introduce a third-party library, but because of library problems, many errors occur. Such as:1. Because some third-party libraries do not contain bitcode, you will get an error:Once using xcode7.1, found compile failure, error message:Umeng MESSAGE.SDK does not contain bitcode. You must rebuild it with Bitcode enabled (Xcodese
What is Bitcode?Check out the official documentation, in the APP distribution Guide–app thinning (IOS, WatchOS) section, find the following definition:Bitcode is an intermediate representation of a compiled program. Apps upload to ITunes Connect that contain bitcode'll be compiled and linked on the App Store. Including Bitcode'll allow Apple to re-optimize your app binary on the future without the need to submit a new version O F your app to the store
Today on an iOS training site to see an article on the third party library does not contain Bitcode will report an error, the feeling is very detailed, shared out, hoping to be helpful to iOS beginners. Let's take a look at it.Run the project on the real Machine (IOS 8.3) with Xcode 7 Beta 3 and find that the project compiles. The following error has been reported:LD: '/users/**/framework/sdks/polymerpay/library/mobstat/lib**sdk.a (**FORSDK.O) ' does
Introduction and configuration of Bitcode in iOSwords 763 Read 28400 comments Today on an iOS training site to see an article on the third party library does not contain Bitcode will report an error, the feeling is very detailed, shared out, hoping to be helpful to iOS beginners. Let's take a look at it.Run the project on the real Machine (IOS 8.3) with Xcode 7 Beta 3 and find that the project compiles.
Run the project on the real Machine (IOS 8.3) with Xcode 7 Beta 3 and find that the project compiles. The following error has been reported:LD: '/users/**/framework/sdks/polymerpay/library/mobstat/lib**sdk.a (**FORSDK.O) ' does not contain bitcode. You must rebuild it with Bitcode enabled (Xcodesetting enable_bitcode), obtain a updated library from the vendor, or DISA Blebitcode for this target. For Archite
Run the project with Xcode 7 on the Real Machine (IOS 9) and find that the project compiles. The following error has been reported:LD: '/users/**/framework/sdks/polymerpay/library/mobstat/lib**sdk.a (**FORSDK.O) ' does not contain bitcode. You must rebuild it with Bitcode enabled (Xcode setting Enable_bitcode), obtain a updated library from the vendor, or dis Able Bitco
Run the project on the real Machine (IOS 8.3) with Xcode 7 Beta 3 and find that the project compiles. The following error has been reported:LD: '/users/**/framework/sdks/polymerpay/library/mobstat/lib**sdk.a (**FORSDK.O) ' does not contain bitcode. You must rebuild it with Bitcode enabled (Xcode setting Enable_bitcode), obtain a updated library from the vendor, or dis Able
After upgrading Xcode, the real machine operation found error, third-party library errors, the SDK, the German SDK are error, as follows:'/users/**/ for the architecture arm64This problem is caused by iOS9 new features Bitcode, the next introduction of the Bitcode, Baidu came.In the APP distribution Guide–app thinning (IOS, WatchOS) section, the following definition is found:Bitcode is an intermediate repre
This error is reported when the xcode7.1 is archive.
Ld:object contains invalid Bitcode:/users/xxx/umsocial_sdk_extra_frameworks/wechat/libwechatsdk.a (WECHATAUTHSDK.O ) for Architecture arm64
Clang:error:linker command failed with exit code 1 (use-v to see invocation)
This error is reported when the xcode7.2 is archive.
Clang:error:unable to execute command:segmentation fault:11
Clang:error:linker command failed due to signal (use-v to see invocat
Here's a nice article about Bitcode's article introduction and configuration of Bitcode in iOS (HTTP://WWW.JIANSHU.COM/P/3E1B4E2D06C6)There is also an article to resolve similar errors, but I have to verify it myself (http://www.jianshu.com/p/fe4b3a981618)Xcode 7 Running Project error:Error 1. Undefined Symbols for Architecture armv7:"_compress2", referenced from:+[umandeflated DeflatedDataPrefixedWith:level:source:] in libmobclicklibrary.a (UMDEFLATE
In the use of sharing may be error, error is as follows:LD: '/users/gti/documents/********/lib/sdkexport/libwechatsdk.a (WXAPIOBJECT.O) ' does not contain bitcode. You must rebuild it with Bitcode enabled (Xcode setting Enable_bitcode), obtain a updated library from the vendor, or dis Able Bitcode for this target. For Architecture arm64The problem is that third p
Today, to upgrade Xcode to 7.0, in addition to some of the swift syntax problems, there are a few more problems, one of which is included in the title of a false hint.Development environment: Xcode 7.0Development language: Swift (introduction of third-party OC Libraries)The scene appears:
Normal debugging is no problem, but in the archive, reported this error.
Question Details:
(null): Urgent:all Bitcode is dropped because ' xxx
* * * does not contain bitcode. You must rebuild it with Bitcode enabled (Xcode setting Enable_bitcodeCategory: IOS Error2015-09-17 11:37 953 people read reviews (2) favorites reportAppthinningXcode 7 Running Project error:Error 1. Undefined Symbols for Architecture armv7:"_compress2", referenced from:+[umandeflated DeflatedDataPrefixedWith:level:source:] in libmobclicklibrary.a (UMDEFLATED.O)Ld:symbol (s)
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