Linux Daily Topics Linux 6.9リリース ―Intel FREDのマージ、ARM64でのRustサポートなど Linus Torvaldsは2024年5月12日（米国時間）、「Linux 6.9」のリリースをアナウンスした。開発期間は約2ヵ月、7本のリリース候補（RC）版を経ての一般提供開始となる。Linux 6.9のリリースにあたりLinusは「全体的にかなり正...
This week I found myself digging through the code of c4, an implementation of C “in four functions”, by Robert Swierczek. I remember coming across c4 when it was released ten years ago. It got me excited: hey, C in four functions, that means it’s easy to understand right? That excitement turned i...
Opening windows in linux with sockets, bare hands and 200 lines of C Intro In this post I want to create a single file C file program to open a windows inside Linux without using xlib or any similar libraries. The idea is to explore X11 protocol and see how it is used to interact with X server to...
Decoding UTF8 with Parallel Extract 23 Mar 2024 As a side-quest I recently decided to write a branchless utf8 decoder utilizing the pext or "parallel extract" instruction. It's compliant with rfc-3629, meaning that it doesn't just naively decode the code-point but also checks for overlong encodin...
The economic advantages of portability are very great. In many segments of the computer industry, the dominant cost is development and maintenance of software. Dennis Ritchie and Stephen Johnson 1978 … many insist that C is the programming language and that it will last forever. Byte Magazine 198...
April 30, 2024 In response to a question on Twitter1, Richard Hipp wrote about why SQLite uses a bytecode VM for executing SQL statements. Most people probably associate bytecode VMs with general-purpose programming languages, like JavaScript or Python. But sometimes they appear in surprising pla...
The recent discussion about AIX support in PostgreSQL (as of now removed in PostgreSQL 17) led me to look through the project’s history, to learn what platforms we have supported when. In this context, “platform” really means operating system. One useful proxy is looking at the files in src/templ...
市販のネットワークルーターやスイッチに導入することで、元々のファームウェアでは実現できなかった高度な設定や最新のプロトコルが利用できる Linux ディストリビューションの OpenWrt は、2004年の登場から今年でちょうど20周年を迎えた。90年代の Linux ルーターという概念の勃興から、ルーター向け Linux ディスト...
Ubuntu 24.04 LTS “Noble Numbat”のリリース 2024年4月25日（現地時間）、Ubuntu 24.04 LTS “Noble Numbat”、『高貴なフクロアリクイ』がリリースされました。Linuxカーネル6.8とGNOME 46をベースに、さまざまな更新を加えたLTS（Long Term Support）リリースです。 そのままでも5年、有償サブスクリプション（5...
I have been making my products statically linked over the past few days. This post presents why and how to statically link your Haskell executables and collects a mapping from obscure error to unexpected fixes. This work would not have been possible without the many-year-long effort of people lik...
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