what is dsym files in Xcode build

Asked on 2024-07-31

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In Xcode, dSYM files (Debug Symbol files) are used to store debug symbols for your app. These symbols are essential for debugging because they map the binary code of your app back to the original source code, allowing you to see meaningful information like function names, variable names, and line numbers in crash reports and during debugging sessions.

From the context provided:

  1. Run, Break, Inspect: Explore effective debugging in LLDB mentions that to get correct line number information with crash logs, you need to ensure that the dSYM bundle for that build is available. This is crucial for understanding the control flow of the program and for investigating crashes effectively.

  2. What’s new in Xcode 16 highlights that with DWARF 5, dSYM bundles are smaller and symbol lookups are faster, which improves the debugging experience.

For more detailed information on how dSYM files are used in debugging, you can refer to the session Run, Break, Inspect: Explore effective debugging in LLDB (06:33).

Relevant Sessions:

  1. Run, Break, Inspect: Explore effective debugging in LLDB
  2. What’s new in Xcode 16