ld: symbol(s) not found for architecture arm64

[ghasemikasra39]

I am not sure if this is the correct project to file this issue, but after updating to Flipper 0.96.1, a new package called Flipper-Boost-iOSX was added, and that causes this error:

Undefined symbols for architecture arm64:
  "___cxa_increment_exception_refcount", referenced from:
      folly::cxxabi_cxa_exception_sans_reserve() in libFlipper-Folly.a(Exception.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

** BUILD FAILED **

The following build commands failed:
    Ld /Users/kasra/Library/Developer/Xcode/DerivedData/InflationCalc-fmwbpshgatctktepfxhturrnjevn/Build/Products/Debug-iphoneos/InflationCalc.app/InflationCalc normal
(1 failure)

System:
    OS: macOS 11.4
    CPU: (4) x64 Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz
    Memory: 35.37 MB / 8.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 14.15.3 - ~/.nvm/versions/node/v14.15.3/bin/node
    Yarn: 1.22.10 - /usr/local/bin/yarn
    npm: 7.18.1 - ~/.nvm/versions/node/v14.15.3/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  Managers:
    CocoaPods: 1.10.1 - /usr/local/bin/pod
  SDKs:
    iOS SDK:
      Platforms: iOS 14.5, DriverKit 20.4, macOS 11.3, tvOS 14.5, watchOS 7.4
    Android SDK:
      API Levels: 28, 29, 30
      Build Tools: 28.0.3, 29.0.2, 30.0.2
      System Images: android-28 | Google APIs Intel x86 Atom, android-29 | Google APIs Intel x86 Atom
      Android NDK: Not Found
  IDEs:
    Android Studio: 4.2 AI-202.7660.26.42.7486908
    Xcode: 12.5.1/12E507 - /usr/bin/xcodebuild
  Languages:
    Java: 1.8.0_275 - /usr/bin/javac

Flipper  0.96.1
Flipper-Folly 2.6.9
Flipper-RSocket 1.4.3
FlipperKit  0.96.1
OpenSSL-Universal 1.1.1100

[ghasemikasra39]

Only these versions work, as you can see, the Flipper-Boost-iOSX is removed and then everything start to work:

[apotocki]

It doesn't look like a Boost issue. ___cxa_increment_exception_refcount is likely a part of standard C++ library, not Boost. Anyway, this project just for building Boost, and any issues like this (if they have something to do with Boost) should be addressed to related Boost library developers.

[apotocki]

I think the problem is in Flipper (https://github.com/facebook/flipper) project, or more precisely in https://github.com/facebook/folly/blob/master/folly/lang/Exception.cpp . It uses the function abi::__cxa_increment_exception_refcount that is not defined in the current arm64 ios platform. Or perhaps there is some additional system library that should be included at the link stage.

[ghasemikasra39]

You are right, I need to file this there. I will close this issue. Thanks a lot.