rr VS Ghidra

rr Reviews

Ghidra Reviews

rr mentions (58)

• Hermit is a hermetic and reproducible sandbox for running programs

  I think this tool must share a lot techniques and use cases with rr. I wonder how it compares in various aspects. https://rr-project.org/ rr "sells" as a "reversible debugger", but it obviously needs the determinism for its record and replay to work, and AFAIK it employs similar techniques regarding system call interception and serializing on a single CPU. The reversible debugger aspect is built on periodic... - Source: Hacker News / 14 days ago

• So you think you want to write a deterministic hypervisor?

  Https://rr-project.org/ had the same problem. They use the retired conditional branch counter instead of instruction counter, and then instruction steeping until at the correct address. - Source: Hacker News / about 1 month ago

• Is Something Bugging You?

  That'll work great for your Distributed QSort Incorporated startup, where the only product is a sorting algorithm. Formal software verification is very useful. But what can be usefully formalized is rather limited, and what can be formalized correctly in practice is even more limited. That means you need to restrict your scope to something sane and useful. As a result, in the real world running thousands of tests... - Source: Hacker News / 3 months ago

• When "letting it crash" is not enough

  The approach of check-pointing computation such that it is resumable and restartable sounds similar to a time-traveling debugger, like rr or WinDbg: https://rr-project.org/ https://learn.microsoft.com/windows-hardware/drivers/debuggercmds/time-travel-debugging-overview. - Source: Hacker News / 3 months ago

• When I got started I debugged using printf() today I debug with print()

  Yes, it's called rr. https://rr-project.org/. - Source: Hacker News / 3 months ago

Ghidra mentions (64)

• I've figured out what 13 of the 16 enemy flags mean in Ultima V. Help me figure out the last three.

  I've got no experience with reverse-engineering executables, but I got a bunch of code-like stuff showing up when I fed ULTIMA.EXE to Ghidra and told it to analyze it with all the flags set. Source: 11 months ago

• Modding SH2

  The whole game is written in C++ (game logic intertwined with graphics). Ghidra can help you deconstruct the game binaries, but you need to put in a GREAT great effort to even get a starting point. Cheat Engine has been successful for some purposes, including an AI enabling utility for multiplayer (use with great care!). Source: 11 months ago

• You have probably heard of Temu right?

  What I think you’re talking about is reverse engineering. It’s basically taking a program and analysing the compiled code to attempt to find out how it works. It’s a fairly expansive topic, and fairly tricky to do but look at anything to do with Ghidra to get started. Source: 12 months ago

• Asking for clarification ... How is learning C beneficial for becoming a Cyber security expert

  Oh also just as an aside Ghidra is a really cool free tool developed by the NSA which can reverse engineer software by looking at its executable and recreating the C code from the instructions and static data within. It's another way to get familiarized with the relationship between C code and the instructions it compiles to. Source: about 1 year ago

• Super Smash Bros. Melee HD Port Will "Never Happen," According to Former Nintendo Employees

  There exist decompilers and other tools for helping make sense of assembly and that can automate some of the conversion back to higher level languages. In my brief involvement with Slippi I used Ghidra - a tool developed by the NSA, to do some of that kind of work, which I found a little amusing. Source: about 1 year ago