Chapter 7, "Software Breakpoints" of "Building a Debugger" by Sy Brand is done (in Rust)!

https://github.com/drmorr0/drbug

This chapter was reasonably straightforward. The hardest part was figuring out the right type for my breakpoint sites and convincing the borrow checker it was OK. In the C++ version of this code, Sy just returns a pointer to the breakpoint site and everything is fine.

I tried to do it this way at first but ran into a point in the code where I had to hold an immutable borrow across a mutable borrow. In the C++ code this is fine because they're clearly touching different parts of the code and won't interact, but there's no way to tell the Rust borrow checker that, and there was no way to restructure the code to make it work.

I ended up making the breakpoint sites Clone-able, and then just wrapped the "important"/"shared" bits in Rc<Cell<...>>, which works pretty well aside from a couple dumb mistakes which took me too long to debug.

I also, instead of shelling out to `readelf` in the tests, just used the `elf` crate which already exists for Rust. I expect to rip this out in Chapter 11 when we implement our own ELF support in the debugger, but for now it feels less gross than readelf regex parsing.

Next up, Chapter 8, is Memory and Disassembly! I did a quick sneak peak ahead and discovered that the book relies on an external C++ lib for disassembly; fortunately, the `iced` crate for Rust seems to provide the functionality that we need here:

https://github.com/icedland/iced

Man I love these TUI debuggers

**jsonrpc-debugger** — A JSON-RPC debugger for the terminal.

Inspect, modify, and debug JSON-RPC requests and responses in real-time.

Written in Rust & built with @ratatui_rs

GitHub: https://github.com/shanejonas/jsonrpc-debugger

Якщо хтось не знав, у #buildkit є вбудований #debugger для білдів
```
% docker buildx debug --on=error --invoke bash build ...
...
--------------------
ERROR: process "..." did not complete successfully: exit code: 1
Interactive container was restarted with process "v3dc7heu3nd4jnrsbkd7ngon6". Press Ctrl-a-c to switch to the new container
(buildx) Switched IO
root@buildkitsandbox:/# це шел в контейнері рівно на тому місці, де впав білд
root@buildkitsandbox:/# Switched IO
(buildx) exit
%
```
buildkit - це збиральник #docker контейнерів, за допомогою якого можна збирати образи під потрібну платформу #ARM або #amd64

Da Associazione per l'Italiano
https://www.instagram.com/p/DMYK1QhqLUJ/
L'anglicismo «bug» ha un simpatico calco in italiano. Ne parliamo nella scheda di oggi.

https://sites.google.com/view/associazioneperlitaliano/raccomandazioni/schede-brevi/2025/baco-italiano-per-bug

The long awaited Black Magic Debug V2.0.0 release is finally here! It is a big update with a lot of improvements and newly supported targets. It pairs very well with bmputil, make sure to give it a try! See release notes for more details. Thanks to everyone who contributed! https://github.com/blackmagic-debug/blackmagic/releases/tag/v2.0.0 Discuss: https://github.com/blackmagic-debug/blackmagic/discussions/2133 #opensource #debugger #electronics #jtag #swd #arm #riscv

This took surprisingly long given that "all" I was doing was writing some tests, but I'm done with Chapter 6, "Testing Registers with x86 Assembly" of "Building a Debugger" in Rust!

This chapter tests the register-writing code that we wrote in the last chapter, and it also adds an interface to the CLI for reading and writing registers for an attached process.

https://github.com/drmorr0/drbug

Is there a kind of how-did-i-end-up-here-debugger?

Example usage:
Website sends signed requests. You want to know how the signature is build.

Set a breakpoint on XMLHttpRequest.send().
Start recording the huge this-depends-on-that-tree.
Perform actions that trigger send.
Select a variable that holds the signature.

The output should be runnable code.
It would set up required state first.
After that (only) the code that had influence on the signature would be printed.

#Development #Launches
HTML Form Inspector · An online tool to inspect and debug web forms https://ilo.im/1651ke

_____
#Inspector #Debugger #Forms #Fields #FieldSets #Buttons #Accessibility #WebDev #Frontend #HTML

OK I finished up Chapter 5: Registers from "Building a Debugger". This one was a bit of a doozy.

The book uses number of C++-specific tricks that don't have easy analogues into Rust, so I had to figure out how to convert those in a sensible way. I also forgot (and then was reminded again) about my love/hate relationship with the Rust macro ecosystem.

Also, there are just a LOT OF FREAKING REGISTERS in x86. We'll be implementing support for (checks notes) one hundred and twenty four of them, and that's not all of them.

Anyways I have literally no idea if any of this code works, but that's what chapter 6 is about, supposedly. Sy does include a helpful note at the end of Chapter 5: "The tests will take us down something of a rabbit hole, however, so now would be a great time to take a break."

https://github.com/drmorr0/drbug

The Minnesota assassin used data brokers as a weapon #debugger
https://podcastaddict.com/debugger/episode/201690175

Notorious debugger #x64dbg made a new release. The blog post about this release includes very good details:

* Bitfield support
* Anon types
* Half-float support
* AVX-512 support

These will boost inspection and performance for large structures and will make reverse engineers happy while wasting time on debugging

https://x64dbg.com/blog/2025/06/30/release-announcement.html

CC: @mrexodia
#debugger #debugging #avx512 #newrelease

#Ghidra v11.4 dropped:

https://github.com/NationalSecurityAgency/ghidra/releases/tag/Ghidra_11.4_build

Even PHP deserves a better terminal experience

**debug-tui** — Interactive PHP step debugger

Provides an interface for Xdebug in the terminal

Written in Rust & built with @ratatui_rs

GitHub: https://github.com/dantleech/debug-tui

Just ordered "Building a Debugger" by Sy Brand. Maybe someday when I have thousands and thousands of hours of extra free time, I'll get around to building a proper Rust debugger.

https://nostarch.com/building-a-debugger

Pet-проект: игра Дебаггер на Python с графическим интерфейсом на Tkinter

Всем привет! В статье расскажу, как я написал игру Дебаггер на Python и добавил к ней графический интерфейс на Tkinter. Мне хотелось сделать простую игру на IT тематику, поэтому я скопировал игровую механику из игры Сапер и теперь нам нужно отметить все баги на игровом поле или наш код сломается. Статья может быть интересна начинающим разработчикам для изучения чужого опыта и наработки своего или же опытным программистам, которые просто хотят поиграть в игру, а может даже предложить, как еще улучшить архитектуру проекта. Нажми, если не боишься багов!

https://habr.com/ru/articles/917382/