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Please consider subscribing to LWNSubscriptions are the lifeblood of LWN.net. If you appreciate this content and would like to see more of it, your subscription will help to ensure that LWN continues to thrive. Please visit this page to join up and keep LWN on the net. The mseal() system call allows a process to prevent any future changes to portions of its address space (thus "sealing" them); it

Please consider subscribing to LWNSubscriptions are the lifeblood of LWN.net. If you appreciate this content and would like to see more of it, your subscription will help to ensure that LWN continues to thrive. Please visit this page to join up and keep LWN on the net. For several years, contributors to the Rust project have been working to improve support for asynchronous code. The benefits of th

LWN.net needs you!Without subscribers, LWN would simply not exist. Please consider signing up for a subscription and helping to keep LWN publishing The Rust programming language differs from C in many ways; those differences tend to be what users admire in the language. But those differences can also lead to an impedance mismatch when Rust code is integrated into a C-dominated system, and it can b

Binbin Zhu BinBin Wang, of Tencent, is responsible for nearly 25% of the commits to the project. Some of the contributors without a readily identifiable employer surely are Redis employees, but it's clear that the company has not been working alone. (Note that some single-digit contributors were omitted.) Changing distribution model So it should be apparent that code contribution is beside the poi

Please consider subscribing to LWNSubscriptions are the lifeblood of LWN.net. If you appreciate this content and would like to see more of it, your subscription will help to ensure that LWN continues to thrive. Please visit this page to join up and keep LWN on the net. As the Rust-for-Linux project advances, the kernel is gradually accumulating abstraction layers that enable Rust code to interface

Benefits for LWN subscribersThe primary benefit from subscribing to LWN is helping to keep us publishing, but, beyond that, subscribers get immediate access to all site content and access to a number of extra site features. Please sign up today! Displaying an application's graphical output onto the screen requires compositing and mode setting that are correctly synchronized among the various piece

Benefits for LWN subscribersThe primary benefit from subscribing to LWN is helping to keep us publishing, but, beyond that, subscribers get immediate access to all site content and access to a number of extra site features. Please sign up today! Linux graphics developers often speak of modern Linux graphics when they refer to a number of individual software components and how they interact with ea

This article brought to you by LWN subscribersSubscribers to LWN.net made this article — and everything that surrounds it — possible. If you appreciate our content, please buy a subscription and make the next set of articles possible. The gccrs project is an ambitious effort started in 2014 to implement a Rust compiler within The GNU Compiler Collection (GCC). Even though the task is far from comp

The Python Steering Council has announced its intent to accept PEP 703 (Making the Global Interpreter Lock Optional in CPython), with initial support possibly showing up in the 3.13 release. There are still some details to work out, though. We want to be very careful with backward compatibility. We do not want another Python 3 situation, so any changes in third-party code needed to accommodate no-

Red Hat has announced that public source releases will be restricted to CentOS Stream going forward: As the CentOS Stream community grows and the enterprise software world tackles new dynamics, we want to sharpen our focus on CentOS Stream as the backbone of enterprise Linux innovation. We are continuing our investment in and increasing our commitment to CentOS Stream. CentOS Stream will now be th

This article brought to you by LWN subscribersSubscribers to LWN.net made this article — and everything that surrounds it — possible. If you appreciate our content, please buy a subscription and make the next set of articles possible. In the fast-moving open-source world, programs can come and go quickly; a tool that has many users today can easily be eclipsed by something better next week. Even i

Benefits for LWN subscribersThe primary benefit from subscribing to LWN is helping to keep us publishing, but, beyond that, subscribers get immediate access to all site content and access to a number of extra site features. Please sign up today! Linters are tools that analyze a program's source code to detect various problems such as syntax errors, programming mistakes, style violations, and more.

LWN.net needs you!Without subscribers, LWN would simply not exist. Please consider signing up for a subscription and helping to keep LWN publishing My name is Lars Wirzenius, and I was there when Linux started. Linux is now a global success, but its beginnings were rather more humble. These are my memories of the earliest days of Linux, its creation, and the start of its path to where it is today.

Did you know...?LWN.net is a subscriber-supported publication; we rely on subscribers to keep the entire operation going. Please help out by buying a subscription and keeping LWN on the net. Canonical recently announced that it will no longer ship Flatpak as part of its default installation for the various official Ubuntu flavors, which is in keeping with the practices of the core Ubuntu distribut

Nolibc: a minimal C-library replacement shipped with the kernel Benefits for LWN subscribersThe primary benefit from subscribing to LWN is helping to keep us publishing, but, beyond that, subscribers get immediate access to all site content and access to a number of extra site features. Please sign up today! The kernel project does not host much user-space code in its repository, but there are exc

It was only a matter of time before somebody found a way to inject BPF into the CPU scheduler. This patch series, posted by Tejun Heo and containing work by David Vernet, Josh Don, and Barret Rhoden, does exactly that. The cover letter covers the motivation behind this work in detail: One of our main goals was to lower the barrier to entry for experimenting with the scheduler. sched_ext provides e

Did you know...?LWN.net is a subscriber-supported publication; we rely on subscribers to keep the entire operation going. Please help out by buying a subscription and keeping LWN on the net. Among the many quirks that make the C language so charming is the set of behaviors that it does not define; these include whether a char variable is a signed quantity or not. The distinction often does not mak

Did you know...?LWN.net is a subscriber-supported publication; we rely on subscribers to keep the entire operation going. Please help out by buying a subscription and keeping LWN on the net. There have been a lot of significant changes merged into the mainline for the 6.1 release, but one of the changes that has received the most attention will also have the least short-term effect for users of th

LWN.net needs you!Without subscribers, LWN would simply not exist. Please consider signing up for a subscription and helping to keep LWN publishing The traditional mechanism for launching a program in a new process on Unix systems—forking and execing—has been with us for decades, but it is not really the most efficient of operations. Various alternatives have been tried along the way but have not

Did you know...?LWN.net is a subscriber-supported publication; we rely on subscribers to keep the entire operation going. Please help out by buying a subscription and keeping LWN on the net. The idea of being able to write kernel code in the Rust language has a certain appeal, but it is hard to judge how well that would actually work in the absence of examples to look at. Those examples, especiall

Did you know...?LWN.net is a subscriber-supported publication; we rely on subscribers to keep the entire operation going. Please help out by buying a subscription and keeping LWN on the net. Docker and other container engines can greatly simplify many aspects of deploying a server-side application, but numerous applications consist of more than one container. Managing a group of containers only ge

Hi everyone, Since November 2020, I've worked full-time on the Rust front-end for GCC, thanks to Open Source Security, Inc and Embecosm. As a result, I am writing to this mailing list to seek feedback from the collective experience here early to plan a path for upstreaming the front-end into GCC. 1. What is the actual process of merging a prominent feature like this upstream - How do we review thi

This article brought to you by LWN subscribersSubscribers to LWN.net made this article — and everything that surrounds it — possible. If you appreciate our content, please buy a subscription and make the next set of articles possible. There is a lot of work going on right now on speeding up Python; Kevin Modzelewski gave a presentation at PyCon 2022 on some of that work. Much of it has implication

LWN.net needs you!Without subscribers, LWN would simply not exist. Please consider signing up for a subscription and helping to keep LWN publishing Pointers are a fact of life for developers working in numerous languages. It is often convenient to be able to associate a small amount — a few bits at most — of ancillary information with a pointer. This can often be done within the pointer value itse

This article brought to you by LWN subscribersSubscribers to LWN.net made this article — and everything that surrounds it — possible. If you appreciate our content, please buy a subscription and make the next set of articles possible. Despite its generally fast-moving nature, the kernel project relies on a number of old tools. While critics like to focus on the community's extensive use of email,