https://github.com/rr-debugger/rr

Record and Replay Framework
https://github.com/rr-debugger/rr

debugger gdb linux reverse-execution

Last synced: 3 days ago
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Record and Replay Framework

• Host: GitHub
• URL: https://github.com/rr-debugger/rr
• Owner: rr-debugger
• License: other
• Created: 2011-08-25T18:59:32.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2024-10-26T02:31:55.000Z (about 2 months ago)
• Last Synced: 2024-10-29T11:24:28.778Z (about 1 month ago)
• Topics: debugger, gdb, linux, reverse-execution
• Language: C++
• Homepage: http://rr-project.org/
• Size: 25.4 MB
• Stars: 9,157
• Watchers: 159
• Forks: 587
• Open Issues: 455
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

Awesome Lists containing this project

• awesome - rr-debugger/rr - Record and Replay Framework (C++)
• awesome-hacking-lists - rr-debugger/rr - Record and Replay Framework (C++)

README

        
# Overview

[![Build and test status](https://github.com/rr-debugger/rr/actions/workflows/build-and-test-main.yml/badge.svg?branch=master)](https://github.com/rr-debugger/rr/actions)

rr is a lightweight tool for recording, replaying and debugging execution of applications (trees of processes and threads).

Debugging extends gdb with very efficient reverse-execution, which in combination with standard gdb/x86 features like hardware data watchpoints, makes debugging much more fun. More information about the project, including instructions on how to install, run, and build rr, is at [https://rr-project.org](https://rr-project.org). The best technical overview is currently the paper [Engineering Record And Replay For Deployability: Extended Technical Report](https://arxiv.org/pdf/1705.05937.pdf).

Or go directly to the [installation and building instructions](https://github.com/rr-debugger/rr/wiki/Building-And-Installing).

Please contribute!  Make sure to review the [pull request checklist](/CONTRIBUTING.md) before submitting a pull request.

If you find rr useful, please [add a testimonial](https://github.com/rr-debugger/rr/wiki/Testimonials).

rr development is sponsored by [Pernosco](https://pernos.co) and was originated by [Mozilla](https://www.mozilla.org).

# System requirements

* Linux kernel >= 4.7 (for support of `__WALL` in `waitid()`)

  * rr 5.6.0 worked with kernel 3.11 (requiring `PTRACE_SETSIGMASK`)

* rr currently requires either:

  * An Intel CPU with [Nehalem](https://en.wikipedia.org/wiki/Nehalem_%28microarchitecture%29) (2010) or later microarchitecture.

  * Certain AMD Zen or later processors (see https://github.com/rr-debugger/rr/wiki/Zen)

  * Certain AArch64 microarchitectures (e.g. ARM Neoverse N1 or the Apple Silicon M-series)

* Running in a VM guest is supported, as long as the VM supports virtualization of hardware performance counters. (VMware and KVM are known to work; Xen does not.)