Xcode Sanitizers and Runtime Issues

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Xcode Runtime Issues are reports of programming errors found at run time. Issues can be found by variety of tools, including Address Sanitizer (ASan), Main Thread Checker (MTC), Thread Sanitizer (TSan), and Undefined Behavior Sanitizer (UBSan).

Posts under Xcode Sanitizers and Runtime Issues tag

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Debugging a macOS IPS dump
I have a macOS application built via command line (xcodebuild) using Xcode 16.1. Developed on ARM but end user is on Intel (same macOS 15.1). App crashed and they sent me a .IPS dump. From what MacGPT tells me: Reading an IPS (Incident Processing System) file from a macOS crash report in Xcode isn’t as straightforward as with iOS device logs. I can open the dump using Console. I see the IPS dump is partially symbolicated. Line in the dump says: Meteorologist 0x103e0348f 0x103d88000 + 504975 Referencing this article: Adding identifiable symbol names to a crash report | Apple Developer Documentation I run this command and see the same UUID for x86_64 as in the dump. dwarfdump --uuid /Users/ed/meteorologist/trunk/Build/Meteorologist.xcarchive/dSYMs/Meteorologist.app.dSYM/Contents/Resources/DWARF/Meteorologist I run this command: atos -arch x86_64 -o /Users/ed/meteorologist/trunk/Build/Meteorologist.xcarchive/dSYMs/Meteorologist.app.dSYM/Contents/Resources/DWARF/Meteorologist -l 0x103d88000 0x103e0348f And it says: fg: no current job Suggestions for what I’m missing?
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Nov ’24
New phone and new xcode version fail
I recently bought a new phone and update xcode version to the latest. An app that I have been developing and worked perfectly fine would not be runned. I kept getting errors similar to below. Is that anything wrong with my setting or something? Class _TtC6SQLite6Backup is implemented in both /System/Library/PrivateFrameworks/LinkServices.framework/LinkServices (0x1f16db218) and /private/var/containers/Bundle/Application/E2xxxx2xxA-DF7B-xx-***-xxxxxxxx/xxxx.app/xxxxx.debug.dylib (0xxxxxx3d0). One of the two will be used. Which one is undefined.
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Oct ’24