Current state of the Swift (Xcode) build job


(Anthony Latsis) #1

Hello everyone!

Has anyone had a successful Xcode build recently? After 2 sequential failures I took a glance at the job on ci.swift.org and it appears to have been failing for an indefinite amount of time. My arguments are utils/build-script --release-debuginfo --debug-swift --xcode

I was foolish enough not to copy the error before quitting the terminal, but I do remember it was pointing at something named SwiftNativeNSXXXBase. A repeated incremental build somehow skipped that and failed closer to the end with

The following build commands failed:
    Ld /Volumes/Elements/swift-source/build/Xcode-RelWithDebInfoAssert+swift-DebugAssert/
    swift-macosx-x86_64/Debug/lib/swift/macosx/x86_64/libswiftCore.dylib normal x86_64

This probably doesn't help at all, so merely FYI. Please let me know if the team is aware of the build failing.


(Erik Little) #2

If it's anything like this: Master build fails macOS due to error: Build input file cannot be found: SwiftNativeNSXXXBase.mm, does utils/build-script --Xcode --debug --reconfigure do anything for you?


(Erik Little) #3

Might not also hurt to do a clean build.


(Anthony Latsis) #4

Hi Erik,

It actually was a clean build, and I currently have only one version of Xcode (the required one, of course), so I doubt --reconfigure will make any difference. I don't think it affects clean builds anyways, but I'll give it a go tonight, who knows.


(Erik Little) #5

Ah. I'm not sure then. I was able to do a clean Xcode build locally with no issues.


(Anthony Latsis) #6

How long ago? Can you share your Xcode version and build configuration?


(Erik Little) #7

I just did an update-checkout this morning (about 2 hours ago), so it should have built with all the latest changes. I'm using the latest Xcode from the Appstore. The actual build was done with utils/build-script --release-debuginfo --debug-swift --skip-build-benchmarks --skip-test-benchmarks --skip-ios --skip-tvos --xcode -c


(Anthony Latsis) #8

I see. Thanks for the information, I'm going to try once more before repeating update-checkout.


(Jordan Rose) #9

I've had problems with the Xcode build that are solved by manually deleting the generated files from .gyb sources. This is obviously not an acceptable state of affairs, but no one's really looked into it.


(Anthony Latsis) #10

This time deleting the generated files from .gyb (deleting all .swift files from the build directory) didn't work, but I will consider this possibility for the future, thank you. I tried repeating update-checkout and starting a clean build again, but it continues to fail with Build input file cannot be found: SwiftNativeNSXXXBase.mm right after finishing with llvm. From there an incremental build simply fails later on with the error in my OP. I am on macOS 10.14.1. The Xcode version is Xcode 10.1 (10B61) – the same one used by the ci bots. Couldn't the issue be related to the still failing build on ci? Is there any way to check out the console log? I wonder how Erik got a successful build though.


(Erik Little) #11

Were you able to figure this out? I'm still able to somehow build... but it does look like the bots are struggling https://ci.swift.org/view/Dashboard/job/oss-swift-incremental-RA-macOS-xcode/lastBuild/console.


(Anthony Latsis) #12

Nope, I'm currently working with a half-built Xcode project. Not too bad for editing :)

Are you sure we have the same Xcode version? The console log on ci shows the exact same issue:

21:49:30 error: Build input file cannot be found: '/Users/buildnode/jenkins/workspace/oss-swift-incremental-RA-macOS-xcode/buildbot_incremental_xcode/swift-macosx-x86_64/stdlib/public/stubs/8/SwiftNativeNSXXXBase.mm'
21:49:30 
21:49:30 ** BUILD FAILED **
21:49:30 
21:49:30 
21:49:30 The following build commands failed:
21:49:30 	CompileC /Users/buildnode/jenkins/workspace/oss-swift-incremental-RA-macOS-xcode/buildbot_incremental_xcode/swift-macosx-x86_64/stdlib/public/stubs/Swift.build/Release/swiftStdlibStubs-macosx-x86_64.build/Objects-normal/x86_64/SwiftNativeNSXXXBase.o 

(Anthony Latsis) #14

@nuclearace, could you verify we have the same Xcode version - 10.1 (10B61)?


(Erik Little) #15

I don't think I have anything special going on with my setup, but let me try another clean install with just default arguments


(Anthony Latsis) #16

Hm... Could it somehow be the OS? But that's unlikely since the bot is running on an older version that mine 10.14.1 (18B75).

I appreciate the involvement, but I hope this isn't backing you up (slowing you down).


(Erik Little) #17

No worries, I'm not actively working on something right now. Are there any other environment things it could be? I'm not totally aware of all the weird settings/envs that could come into play here.