Monday, December 1, 2025

Enhanced Native Binary Debugging for OCaml (by Claude)

Unlocking OCaml Native Debugging with DWARF Support

Are you struggling with OCaml native code debugging? A recent PR introduces DWARF support for macOS and Linux, revolutionizing how developers interact with the OCaml compiler. Here’s what you need to know:

  • What is DWARF?
    A standard for debugging data that maps memory locations back to source code.

  • Key Changes to OCaml:

    • Native builds now generate DWARF v5 support for showing variable names and source lines.
    • Say goodbye to cryptic register names like R0 and hello to meaningful identifiers such as x, y, and total.
  • Enhanced Debugging Experience:

    • Breakpoints resolve properly.
    • Inspect variables easily through LLDB.
    • Support for structures like lists and closures.

This update brings OCaml debugging in line with other compiled languages, enhancing productivity and efficiency.

👉 Join the conversation! Share your thoughts on this game-changing improvement and how it affects your debugging experience!

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