rr is described as 'Debugging tool designed to record and replay program execution. During the replay phase, rr provides an enhanced gdb debugging experience that supports reverse execution' and is an app in the development category. There are three alternatives to rr for a variety of platforms, including Windows, Linux, BSD, Cygwin and Haiku apps. The best rr alternative is GNU Project Debugger, which is both free and Open Source. Other great apps like rr are Spray and WinDbg.
GNU Project Debugger, or gdb, is a command-line, source-level debugger for programs that were written in C, C++, D, Objective-C, Fortran, Java, Pascal, assembly, Modula-2, or Ada and compiled for any of a number of different target architectures including x86, x86-64, IA-64...
GNU Project Debugger is the most popular Windows, Mac & Linux alternative to rr.
GNU Project Debugger is the most popular Open Source & free alternative to rr.
Spray is a small debugger for C code that comes with minimal mental overhead. All functionality aims to be simple and easy to grasp.
WinDbg is a multipurposed debugger for Microsoft Windows, distributed on the web by Microsoft as part of the Debugging Tools for Windows. It can be used to debug user mode applications, drivers, and the operating system itself in kernel mode.
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