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gdb

Use when running GDB: breakpoints, watchpoints, segfault or hang debugging, reverse debugging, remote gdbserver, core dumps, pretty-printers, Python scripting, or multi-threaded debugging.

.devin/skills/gdb/SKILL.md

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Last checked
Nov 4, 2026

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Repository last updated
Sep 28, 2026
License
Apache-2.0

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# GDB

## Contract

| Field | Bound contract |
|---|---|
| Trigger | A C or C++ program needs a GDB session: breakpoints, watchpoints, stepping, crash or hang diagnosis, reverse debugging, remote debugging with gdbserver, core files, or Python scripting. |
| Authority | Read-only. Emits analysis and commands for the operator to run on the target; no file writes, no rollback needed. No remote mutation. |
| Side effect | Diagnostic commands and a verdict in chat. Nothing is written. |
| Done | The bug is localized to a frame, variable, or instruction, or the next diagnostic step is stated with its reason. |

## Inputs

1. Binary (required): compiled with `-g`; `-Og` or `-O0` gives the most debuggable code.