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Programming: Mozilla:, GNU C Library, Perl and More

Submitted by Roy Schestowitz on Tuesday 2nd of February 2021 05:18:41 PM Filed under
Development
  • Followup on Firefox 85 for POWER: new low-level fix

    Shortly after posting my usual update on Firefox on POWER, I started to notice odd occasional tab crashes in Fx85 that weren't happening in Firefox 84. Dan Horák independently E-mailed me to report the same thing. After some digging, it turned out that our fix way back when for Firefox 70 was incomplete: although it renovated the glue that allows scripts to call native functions and fixed a lot of problems, it had an undiagnosed edge case where if we had a whole lot of float arguments we would spill parameters to the wrong place in the stack frame. Guess what type of function was now getting newly called?

  • Mozilla Addons Blog: addons.mozilla.org API v3 Deprecation

    The addons.mozilla.org (AMO) external API can be used by users and developers to get information about add-ons available on AMO, and to submit new add-on versions for signing. It’s also used by Firefox for recommendations, among other things, by the web-ext tool, and internally within the addons.mozilla.org website.

    We plan to shut down Version 3 (v3) of the AMO API on December 31, 2021. If you have any personal scripts that rely on v3 of the API, or if you interact with the API through other means, we recommend that you switch to the stable v4. You don’t need to take any action if you don’t use the AMO API directly. The AMO API v3 is entirely unconnected to manifest v3 for the WebExtensions API, which is the umbrella project for major changes to the extensions platform itself.

  • GNU C Library 2.33 Released With HWCAPS To Load Optimized Libraries For Modern CPUs - Phoronix

    The GNU C Library 2.33 release is out today as expected. Exciting with this libc update is HWCAPS in making it easier to load optimized libraries for modern CPUs.

    See that linked article from last week for more details but Glibc 2.33 but basically it allows the dynamic linker to load optimized versions of libraries within a glibc-hwcaps directory on the library search path. The HWCAPS correspond to the new x86_64 microarchitecture feature levels and there is similar support for POWER and s390x as well. This is exciting, pending sufficient adoption and usage of this HWCAPS functionality by software vendors to allow for more optimized libraries to automatically get picked up on modern processors without restricting the support for running on older CPUs as well. Red Hat has been working on the x86_64 microarchitecture feature levels and Glibc-HWCAPS over the past year with part of the motivation around allowing more AMD Zen optimizations.

  • My handy guide to software development and testing

    A long time ago, when I was but a budding computer programmer, we used to work in large batches. We were each assigned a programming task, and then we'd go away and hide in our cubicles and bang on the keyboard. I remember my team members spending hours upon hours in isolation, each of us in our own cubicle, wrestling with challenges to create defect-free apps. The theory was, the larger the batch, the better the evidence that we're awesome problem solvers.

  • Python for Data Science: Data Visualization

    Python can be used to generate from simple to very complex graphs. In this segment, we’ll learn how to graph using python.

  • Welcoming David Wood to compiler team and Jack Huey to compiler-contributors | Inside Rust Blog

    Please welcome David Wood to the compiler team and Jack Huey to the compiler-contributors group!

    David Wood (@davidtwco) has been a frequent contributor to Rust in many different parts of the compiler. Much of David's recent work has been focused on polymorphisation which allows rustc to reduce the number of duplicated generic functions in certain situations and on adding split DWARF support to the LLVM backend. Previously, David has worked on numerous diagnostic improvements, internal compiler error fixes and the non-lexical lifetimes initiative.

  • Issue #497 - 2021-02-01 - perl.com was hijacked [Ed: DNS level attack, or social engineering, not the fault of Perl itself]

    The big news of the week is that perl.com was hijacked. According to what I have read the solution seem to be already on its way to recover the domain. If you are using a perl.com host for your CPAN mirror you should use www.cpan.org instead (See this post.) You can also find the content of perl.com on perldotcom.perl.org. Ask brian d foy ([...]) for further details. (See also on Reddit.)

  • perl.com hijacked

    Network Solutions is working with Tom Christiansen, the rightful registrant, on the recovery of the Perl.com domain. There is no estimated timeline for its recovery but the process is underway. The Perl.com site is temporarily at perldotcom.perl.org. Anyone using a perl.com host for their CPAN mirror should use www.cpan.org instead. Please direct all inquiries to brian d foy ([...]).

  • Rakudo Weekly News: 2021.05 GSoC Proposing

    JJ Merelo has taken the initiative (again, so kudos!) to set up a list of Google Summer of Code proposals for the Raku Programming Language.

»

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today's howtos

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    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

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  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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