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android-tombstone-symbolication

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Symbolicate the .NET runtime frames in an Android tombstone file. Extracts BuildIds and PC offsets from the native backtrace, downloads debug symbols from the Microsoft symbol server, and runs llvm-symbolizer to produce function names with source file and line numbers. USE FOR triaging a .NET MAUI or Mono Android app crash from a tombstone, resolving native backtrace frames in libmonosgen-2.0.so or libcoreclr.so to .NET runtime source code, or investigating SIGABRT, SIGSEGV, or other native signals originating from the .NET runtime on Android. DO NOT USE FOR pure Java/Kotlin crashes, managed .NET exceptions that are already captured in logcat, or iOS crash logs. INVOKES Symbolicate-Tombstone.ps1 script, llvm-symbolizer, Microsoft symbol server.

plugins/dotnet-diag/skills/android-tombstone-symbolication/SKILL.md

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Last checked
Nov 9, 2026

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5,859
Repository last updated
Nov 8, 2026
License
MIT

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# Android Tombstone .NET Symbolication

Resolves native backtrace frames from .NET Android app crashes (MAUI, Xamarin, Mono) to function names, source files, and line numbers using ELF BuildIds and Microsoft's symbol server.

**Inputs:** Tombstone file or logcat crash output, `llvm-symbolizer` (from Android NDK or any LLVM 14+ toolchain), internet access for symbol downloads.

**Do not use when:** The crash is a managed .NET exception (visible in logcat with a managed stack trace), the crashing library is not a .NET component (e.g., `libart.so`), or the tombstone is from iOS.

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## Workflow

### Step 1: Parse the Tombstone Backtrace
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