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Programming: Buzzwords, Meson, Tracealyzer, LLVM, Python and Rust

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Development

  • What is DevSecOps? Everything You Need To Know About DevSecOps

    Most people are familiar with the term “DevOps,” but they don’t know how to really utilize it. There’s more to DevOps than just development and operational teams. There’s an essential element of DevOps that is often missing from the equation; IT security. Security should be included in the lifecycle of apps. 

    The reason you need to include security is that security was once assigned to one team that integrated security near the end-stages of development. Taking such a lax approach to security wasn’t such a problem when apps were developed in months or years. The average development cycle has changed quite a bit, though, and apps can be developed in a matter of days or weeks. Outdated security practices like leaving security too late can bring DevOps initiatives to their knees. 

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  • Nibble Stew: The Meson Manual: Good News, Bad News and Good News

    Starting with good news, the Meson Manual has been updated to a third edition. In addition to the usual set of typo fixes, there is an entirely new chapter on converting projects from an existing build system to Meson. Not only are there tips and tricks on each part of the conversion, there is even guidance on how to get it done on projects that are too big to be converted in one go.

  • Percepio Releases Tracealyzer Visual Trace Diagnostics Solution Version 4.4 with Support for Embedded Linux

    Percepio announced the availability of Tracealyzer version 4.4 with support for embedded Linux. Tracealyzer gives developers insight during software debugging and verification at the system level by enabling visual exploratory analysis from the top down. This makes the software suitable for spotting issues during full system testing and drill down into the details to find the cause.

    Version 4.4 adds several views optimized for Linux tracing, in addition to a set of visualizations already in Tracealyzer, and leverages Common Trace Format (CTF) and the widely supported LTTng, an open source tracing framework.

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  • LLVM Adds A SPIR-V CPU Runner For Handling GPU Kernels On The CPU - Phoronix

    LLVM has merged an experimental MLIR-based SPIR-V CPU runner that the developers are working towards being able to handle CPU-based execution of GPU kernels. 

    This new SPIR-V runner is built around the MLIR intermediate representation (Multi-Level Intermediate Representation) with a focus of going from GPU-focused code translated through SPIR-V and to LLVM and then executed on the CPU. The runner focus is similar to that of the MLIR-based runners for NVIDIA CUDA, AMD ROCm, and Vulkan, but just executing on the CPU itself. It was earlier this year LLVM added the MLIR-Vulkan-Runner for handling MLIR on Vulkan hardware. 

  • Python Modulo in Practice: How to Use the % Operator – Real Python

    Python supports a wide range of arithmetic operators that you can use when working with numbers in your code. One of these operators is the modulo operator (%), which returns the remainder of dividing two numbers.

  • Test & Code : Python Testing for Software Engineering 136: Wearable Technology - Sophy Wong

    Wearable technology is not just smart consumer devices like watches and activity trackers.

    Wearable tech also includes one off projects by designers, makers, and hackers and there are more and more people producing tutorials on how to get started. Wearable tech is also a great way to get both kids and adults excited about coding, electronics, and in general, engineering skills.

    Sophy Wong is a designer who makes really cool stuff using code, technology, costuming, soldering, and even jewelry techniques to get tech onto the human body.

  • Librsvg's test suite is now in Rust

    Some days ago, Dunja Lalic rewrote the continuous integration scripts to be much faster. A complete pipeline used to take about 90 minutes to run, now it takes about 15 minutes on average.

    [...]

    The most complicated thing to port was the reference tests. These are the most important ones; each test loads an SVG document, renders it, and compares the result to a reference PNG image. There are some complications in the tests; they have to create a special configuration for Fontconfig and Pango, so as to have reproducible font rendering. The pango-rs bindings do not cover this part of Pango, so we had to do some things by hand.

More in Tux Machines

Zotero: An Open Source App to Help You Collect & Share Research

Zotero is a completely open-source project that you can find on GitHub. It aims to help you easily collect, organize, add notes, and share your research. And, all of that without being a cloud-based service, it is completely offline. So, your research notes belong to you. Of course, unless you want to sync it for collaboration purpose, for which you may have to refer the documentation. To give you a head start, you can either opt for a WebDAV storage or just create a Zotero account to sync and share your research easily. Read more

GhostBSD 20.11.28 Release Announcement

I am happy to announce the availability of GhostBSD 20.11.28. This release comes with a new live system that leverages ZFS, compression, and replication first introduced in FuryBSD by Joe Maloney. The 20.11.28 release contains numerous improvements, including OS fixes for linuxulator to improve Linux Steam performance, an updated kernel, and GhostBSD userland updates. Userland updates include a MATE desktop upgrade to version 1.24.1, Software Station performance improvements, and numerous application updates. Read more

Linux 5.10-rc6

For the first part of the week, it really looked like things were
calming down quite nicely, and I mentally already went "Ahh,
Thanksgiving week, this is going to be a nice small, calm rc".

And then Friday rolled around, and everybody sent me their pull
requests for the week, and it all looks very normal again.

But at least this week isn't unusually bigger than normal - it's a
pretty normal rc6 stat-wise.  So unless we have some big surprising
left-overs coming up, I think we're in good shape.

And the diffstat looks nice and flat too,  which is a sign of just
widespread small fixes, rather than some big last-minute changes. The
exception is a chunk of fixes to the new vidtv driver, but that is not
only a new driver, it's a virtual test-driver for validation and
development rather than something that would affect users.

That vidtv driver shows up very clearly in the patch stats too, but
other than that it all looks very normal: mostly driver updates (even
ignoring the vidtv ones), with the usual smattering of small fixes
elsewhere - architecture code, networking, some filesystem stuff.

So I'm feeling pretty good about 5.10, and I hope I won't be proven
wrong about that. But please do test,

                 Linus

Read more

Review: Trisquel GNU/Linux 9.0

Trisquel GNU/Linux is an entirely free (libre) distribution based on Ubuntu. Trisquel offers a variety of desktop editions, all of which are stripped of non-free software components. The project is one of the few Linux distributions endorsed by the Free Software Foundation and a rare project that attempts to both be entirely free and friendly to less experienced Linux users. The Trisquel website lists several desktop editions. The main edition (which is a 2.5GB download) features the MATE desktop environment while the Mini edition is about half the size and runs LXDE. There is also a KDE Plasma edition (called Triskel) along with Trisquel TOAST which runs the Sugar learning platform. Finally, there is a minimal net-install option for people who are comfortable building their system from the ground up using a command line interface. The release announcement for Trisquel 9.0 is fairly brief and does not mention many features. The bulk of the information is provided in this paragraph: "The default web browser Abrowser, our freedom and privacy respecting take on Mozilla's browser, provides the latest updates from upstream for a great browsing experience. Backports provide extended hardware support." Though it does not appear to be mentioned specifically in the release announcement, Trisquel 9.0 looks to be based on Ubuntu 18.04 LTS packages, with some applications backported. [...] On the whole I found Trisquel to be pleasant to use, easy to set up, and pretty capable out of the box. I really like how fast it performed tasks and how uncluttered/unbusy the desktop felt. The one problem I had with Trisquel was the lack of wireless networking support. The distribution strives for software freedom (as defined by the Free Software Foundation) and this means no non-free firmware, drivers, or applications. This slightly limits its hardware support compared to most Linux distributions. It also means no easy access to applications such as Steam, Chrome, Spotify, and so on. This may make Trisquel a less practical operating system to some, but that is sort of the point: Trisquel takes a hard stance in favour of software freedom over convenience. If you are a person who does not use non-free software and doesn't need non-free wireless support, then Trisquel is probably the best experience you can have with an entirely free Linux distribution. It is painless to set up, offers several desktop flavours, and runs quickly. For free software enthusiasts I would highly recommend giving Trisquel a try. Read more