usbarmory
abseil-cpp
usbarmory | abseil-cpp | |
---|---|---|
22 | 54 | |
1,334 | 13,955 | |
0.4% | 1.3% | |
5.8 | 9.5 | |
13 days ago | 4 days ago | |
Ruby | C++ | |
- | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
usbarmory
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Go: What We Got Right, What We Got Wrong
Niklaus Wirth, rest his soul, would disagree.
Like would the the selling USB Armory, with Go written firmware.
https://www.withsecure.com/en/solutions/innovative-security-...
Back in my day, writing compilers and OS services were also systems programming.
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What's Zig got that C, Rust and Go don't have? [video]
Not only you can fit Go into a kernel, there is at least two products that do so.
TamaGo, used to write the firmware used in USB armory.
https://www.withsecure.com/en/solutions/innovative-security-...
TinyGo, which even has official Arduino and ARM support, and is sponsored by Google
https://tinygo.org/
Ah but that isn't proper Go! Well neither is the C code that is allowed to be used in typical kernel code, almost nothing from ISO C standard library is available, and usually plenty of compiler specific language extensions are used instead.
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Bare Metal Rust in Android
> Since 80s everybody designs systems on top of C.
More like since the 1990's, and mostly thanks to the GNU Manifesto and FOSS uptake that took the steam out of C++ adoption being pushed by Apple, IBM and Microsoft.
There is firmware in production written in Go,
https://www.withsecure.com/en/solutions/innovative-security-...
- USB armory – small secure computer from WithSecure (previously F-secure)
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How is Go used in Linux based environments in various companies?
Not exactly but close. No gocoin, but custom (minimal) client based on btcsuite libs. And it is run on USB Armory SoC.
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avbroot: Re-lock bootloader with Magisk installed!
Relocking with your own key is only for experts, it's similar to the USB Armory device for embedded electronics. If you get it wrong you can brick the device, the purpose of doing it is to protect against certain types of boot attacks (like if somebody can get temporary physical access to your phone or even just plant a malicious USB cable which could potentially push malware. If you don't know what you're doing, stay on stock OS.
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Google: C++20, How Hard Could It Be
Plenty of software that is written in C and C++, can be easily done in Go as well, in fact in any AOT compiled managed language.
C++ was born to write distributed systems, nowadays it hardly matters on cloud native infrastructure beyond the OS and hypervisors layer.
This is how Go can be a competitor to C and C++, just like Inferno was basically Plan 9 with Limbo for userspace and very little C beyond the kernel.
And then there are those crazy folks that believe they should ship bare metal AOT compiled languages regardless of others think.
https://www.withsecure.com/en/solutions/innovative-security-...
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Rust 2024 the Year of Everywhere?
Of course it can, there are companies shipping products written in bare metal Go.
https://www.withsecure.com/en/solutions/innovative-security-...
https://github.com/usbarmory/tamago
- Generics can make your Go code slower
- Rust Compiler Ambitions for 2022
abseil-cpp
- Sane C++ Libraries
- Open source collection of Google's C++ libraries
- Is Ada safer than Rust?
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Appending to an std:string character-by-character: how does the capacity grow?
Yeah, it's nice! And Abseil does it, IFF you use LLVM libc++.
https://github.com/abseil/abseil-cpp/blob/master/absl/string...
The standard adopted it as resize_and_overwrite. Which I think is a little clunky.
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Shaving 40% Off Google’s B-Tree Implementation with Go Generics
This may be confusing to those familiar with Google's libraries. The baseline is the Go BTree, which I personally never heard of until just now, not the C++ absl::btree_set. The benchmarks aren't directly comparable, but the C++ version also comes with good microbenchmark coverage.
https://github.com/google/btree
https://github.com/abseil/abseil-cpp/blob/master/absl/contai...
- Faster Sorting Beyond DeepMind’s AlphaDev
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“Once” one-time concurrent initialization with an integer
An implementation of call_once that accommodates callbacks that throw: https://github.com/abseil/abseil-cpp/blob/master/absl/base/c...
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[R] AlphaDev discovers faster sorting algorithms
I wouldn't say it's that cryptic. It's just a few bitwise rotations/shifts/xor operations.
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Deepmind Alphadev: Faster sorting algorithms discovered using deep RL
You can see hashing optimizations as well https://www.deepmind.com/blog/alphadev-discovers-faster-sort..., https://github.com/abseil/abseil-cpp/commit/74eee2aff683cc7d...
I was one of the members who reviewed expertly what has been done both in sorting and hashing. Overall it's more about assembly, finding missed compiler optimizations and balancing between correctness and distribution (in hashing in particular).
It was not revolutionary in a sense it hasn't found completely new approaches but converged to something incomprehensible for humans but relatively good for performance which proves the point that optimal programs are very inhuman.
Note that for instructions in sorting, removing them does not always lead to better performance, for example, instructions can run in parallel and the effect can be less profound. Benchmarks can lie and compiler could do something differently when recompiling the sort3 function which was changed. There was some evidence that the effect can come from the other side.
For hashing it was even funnier, very small strings up to 64 bit already used 3 instructions like add some constant -> multiply 64x64 -> xor upper/lower. For bigger ones the question becomes more complicated, that's why 9-16 was a better spot and it simplified from 2 multiplications to just one and a rotation. Distribution on real workloads was good, it almost passed smhasher and we decided it was good enough to try out in prod. We did not rollback as you can see from abseil :)
But even given all that, it was fascinating to watch how this system was searching and was able to find particular programs can be further simplified. Kudos to everyone involved, it's a great incremental change that can bring more results in the future.
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Backward compatible implementations of newer standards constructs?
Check out https://abseil.io. It offers absl::optional, which is a backport of std::optional.
What are some alternatives?
TinyGo - Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.
Folly - An open-source C++ library developed and used at Facebook.
SkyFM
Boost - Super-project for modularized Boost
go-is-not-good - A curated list of articles complaining that go (golang) isn't good enough
spdlog - Fast C++ logging library.
zerosharp - Demo of the potential of C# for systems programming with the .NET native ahead-of-time compilation technology.
Qt - Qt Base (Core, Gui, Widgets, Network, ...)
tamago - TamaGo - ARM/RISC-V bare metal Go
EASTL - Obsolete repo, please go to: https://github.com/electronicarts/EASTL
biscuit - Biscuit research OS
BDE - Basic Development Environment - a set of foundational C++ libraries used at Bloomberg.