Can't profile app built with SwiftPM

Development Package Manager
1

Hello,

I’m trying to debug allocations of my swift cli app in instruments. I’m already resigning the app to add the com.apple.security.get-task-allow entitlement. But instruments logs the following error immediately after launching the app

Failed to load library /Applications/Xcode-26.1.1.app/Contents/SharedFrameworks/DVTInstrumentsFoundation.framework/Resources/liboainject.dylib because target process 71062 appears to have exited

Has anyone run into this issue? Is there a workaround?

-mike

2

it’s definitely an entitlement or sandboxing issue because disabling SIP fixes it.

3

I’m unable to use the profile test command at all. My macOS application is built from many SPM packages and I’m trying to profile a test from one of them - i’m unclear what the reason is, but nothing I’ve tried (get-task-allow entitlement etc) will change it from crashing on launching. All I can do is attach to process (to xctest) in Instruments, which means that short tests won’t work with it. It’s beyond a poor experience.

4

Hi! Instruments engineer here. Can you report this using Feedback Assistant, attach a sysdiagnose taken after attempting to profile the app, and also a dump of the entitlements (codesign -d --entitlements - /path/to/binary) and share the feedback ID here? I’d be happy to investigate it with my team.

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5

just to confirm, you need me to reenable SIP correct?

6

Please do, since it seems like you’re not seeing the issue with SIP disabled.

7

Submitted FB21269258 - Unsure if it’s related to the original thread here or not, but seems valid. Thanks! Ryan

1 Like