导出时启用Bitcode时出错(架构armv7找不到符号)

Question

我有一个相当老的项目,最低部署目标设置为iOS 8.4.由于技术原因,必须启用bitcode .该项目建立并运行良好.然而,当尝试导出存档的构建时,事情就出错了.我正在使用Xcode 8.2.1.

当我使用Rebuild from bitcode启用该选项创建测试版本(使用Enterprise证书签名)时,导出在编译bitcode时失败.

以下是日志的相关部分:

"/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/8.0.0/lib/darwin/libclang_rt.ios.a" "-o" "/private/var/folders/qy/cgq_nq7x2tx1j3z__7f4yx100000gn/T/<redacted target name>WX9bPu/<redacted target name>.armv7.out" 
    -= Output =-
    Undefined symbols for architecture armv7:
      "_llvm_gcov_init", referenced from:
          __hidden#2_ in 001.o
          __hidden#3_ in 001.o
          __hidden#4_ in 001.o
          __hidden#5_ in 001.o
          __hidden#6_ in 001.o
          __hidden#7_ in 001.o
          __hidden#8_ in 001.o
          ...
      "_llvm_gcda_end_file", referenced from:
          __hidden#0_ in 001.o
          __hidden#0_ in 002.o
          __hidden#0_ in 003.o
          __hidden#0_ in 004.o
          __hidden#0_ in 005.o
          __hidden#0_ in 006.o
          __hidden#0_ in 007.o
          ...
      "_llvm_gcda_emit_function", referenced from:
          __hidden#0_ in 001.o
          __hidden#0_ in 002.o
          __hidden#0_ in 004.o
          __hidden#0_ in 005.o
          __hidden#0_ in 006.o
          __hidden#0_ in 007.o
          __hidden#0_ in 008.o
          ...
      "_llvm_gcda_emit_arcs", referenced from:
          __hidden#0_ in 001.o
          __hidden#0_ in 002.o
          __hidden#0_ in 004.o
          __hidden#0_ in 005.o
          __hidden#0_ in 006.o
          __hidden#0_ in 007.o
          __hidden#0_ in 008.o
          ...
      "_llvm_gcda_start_file", referenced from:
          __hidden#0_ in 001.o
          __hidden#0_ in 002.o
          __hidden#0_ in 003.o
          __hidden#0_ in 004.o
          __hidden#0_ in 005.o
          __hidden#0_ in 006.o
          __hidden#0_ in 007.o
          ...
      "_llvm_gcda_summary_info", referenced from:
          __hidden#0_ in 001.o
          __hidden#0_ in 002.o
          __hidden#0_ in 003.o
          __hidden#0_ in 004.o
          __hidden#0_ in 005.o
          __hidden#0_ in 006.o
          __hidden#0_ in 007.o
          ...
    ld: symbol(s) not found for architecture armv7
    Exited with 1


    error: Failed to compile bundle: /var/folders/qy/cgq_nq7x2tx1j3z__7f4yx100000gn/T/<redacted target name>WX9bPu/<redacted target name>.armv7.xar


Stderr:
>
    /Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:202:in `run'
    /Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:1987:in `block in CompileOrStripBitcodeInBundle'
    /Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:1944:in `each'
    /Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:1944:in `CompileOrStripBitcodeInBundle'
    /Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:2119:in `ProcessIPA'
    /Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:2687:in `<main>'";
            info =             {
            };
            level = ERROR;
            type = exception;
        }
    );
    thinnableAssetCatalogs =     (
        "/var/folders/qy/cgq_nq7x2tx1j3z__7f4yx100000gn/T/XcodeDistPipeline.hn6/Root/Payload/<redacted target name>.app/Assets.car"
    );
}
2017-03-31 12:21:37 +0000 [MT] Exporting using IDEDistributionPackageExportStep
2017-03-31 12:21:58 +0000 [MT] Canceled distribution assistant

禁用时Rebuild from bitcode,导出成功,生成的构建运行正常.但是,当构建将提交给iTunes Connect时,我担心这会产生问题.

有没有人知道为什么会出现这个错误以及如何解决这个问题？我在这里有点不知所措.

---

编辑:

澄清:是的,bitcode在目标级别启用.以下是链接库:

这些是依赖项:

# Reporting
pod 'Fabric'
pod 'Crashlytics'
pod 'GoogleAnalytics'
pod 'CocoaLumberjack', '~> 1.6.2'

# Networking
pod 'AFNetworking', '~> 2.6.3'
pod 'RestKit', '~> 0.27'
pod 'Reachability'

# Other
pod 'UIColor-Utilities', '~> 1.0.1'
pod 'ViewDeck', '~> 2.4'
pod 'SDWebImage', '~> 3.7.0'
pod 'AMRatingControl', '~> 1.3.0'

Answer 1

经过一些尝试和错误以及Sven Drielecker （和其他人）的有用建议，该问题已得到解决。

构建GCC_INSTRUMENT_PROGRAM_FLOW_ARCS设置设置YES为调试和发布构建。将其关闭以进行发布已解决该问题。