Function Call Tracing
About
This skill provides C/C++ function-level execution tracing using GCC's -finstrument-functions flag, capturing all function entries and exits during runtime. It generates per-thread trace logs and converts them to Chrome's JSON format for visualization in Perfetto UI. Use this for performance profiling, debugging call flows, or analyzing execution patterns in compiled applications.
Quick Install
Claude Code
Recommendednpx skills add gadievron/raptor -a claude-code/plugin add https://github.com/gadievron/raptorgit clone https://github.com/gadievron/raptor.git ~/.claude/skills/Function Call TracingCopy and paste this command in Claude Code to install this skill
GitHub Repository
Frequently asked questions
What is the Function Call Tracing skill?
Function Call Tracing is a Claude Skill by gadievron. Skills package instructions and resources that Claude loads on demand, so Claude can perform Function Call Tracing-related tasks without extra prompting.
How do I install Function Call Tracing?
Use the install commands on this page: add Function Call Tracing to Claude Code as a plugin, or clone its repository into your skills directory, then restart Claude so it picks up the skill.
What category does Function Call Tracing belong to?
Function Call Tracing is in the Design category, tagged tracing, profiling, instrumentation and perfetto.
Is Function Call Tracing free to use?
Yes. Function Call Tracing is listed on AIMCP and free to install. It runs inside Claude, so no separate service account is required to use the skill itself.
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