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NEWS 》 Weekly News Digest - Week 02 - July 2020

Linux Developers May Discuss Allowing Rust Code Within The Kernel
Nick Desaulniers of Google, who is known for his work on LLVM Clang'ing the Linux kernel and related efforts, is wanting to bring up the matter of in-tree Rust support for the kernel. The extent though of allowing Rust within the kernel isn't clear yet but would likely be very limited. Read More

Linux Kernel Raising Compiler Build Requirement To GCC 4.9
Linus Torvalds has decided to up the compiler build requirement for the Linux kernel to GCC 4.9. Recently the compiler requirement was upped to GCC 4.8 while as a late change for Linux 5.8 is now bumping the base compiler version supported to GCC 4.9. Read More

Watch on Youtube - [988//0] 303 TCP Tune-up and Performance Analysis Graphs - Congestion Control - Research - Dos and Don'ts ↗

Linux kernel developers: This new BLM coding style avoids words like blacklist
Key Linux kernel maintainers have largely welcomed a new proposal by Intel engineer and fellow kernel maintainer Dan Williams to introduce inclusive terminology in the kernel's official coding-style document. Read More

Watch on Youtube - [982//0] Online Course - Linux CLI Scripting - Episode9 - $nl command ↗

Google is teaming up with Ubuntu to bring Flutter apps to Linux
Flutter is Google's cross-platform application framework that allows developers to create responsive apps for Android, iOS, and even macOS. The toolset has already been used by countless applications, including the mobile Stadia app, and now Google is teaming up with Ubuntu Linux to bring Flutter apps to desktop Linux. Read More

Watch on Youtube - [9453//0] 179 VLOG - NIKON D5300 DSLR camera battery charger MH-24 repair or service #TheLinuxChannel ↗

Premio Unveils Intel 9th Gen Industrial Motherboard For Advanced Embedded And IoT Solutions
CT-MCL01 MicroATX motherboard Enhanced Power Drives Computing Performance, Reliability, and Security for Industry 4.0 Applications Read More

Watch on Youtube - [442//0] 0x1c4 Texas Instruments BroadBand SoC TNETV1055 MIPS32 4KEc V4.8 | BusyBox Embedded Linux | VLOG ↗

Zstd'ing The Kernel Might See Mainline With Linux 5.9 For Faster Boot Times
It looks like the long ongoing work for compressing the Linux kernel image with Zstd might finally soon be mainlined, potentially for next month's Linux 5.9 cycle kicking off as the "v6" patches sent out this week were done as a Git pull request. Read More

Linux 5.9 To Bring Arm Memory Tagging Extension Support
The 64-bit ARM code building up for the Linux 5.9 cycle is set to mainline Memory Tagging Extension (MTE) support as another security improvement inbound. The Memory Tagging Extension (MTE) of the ARMv8.5-A specification is intended to help fend off potential memory safety violations that could lead to exploits of the system. MTE has the mechanism with supported hardware to detect the most common memory safety violations and can assist in detection of vulnerabilities. Read More


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Featured Video:
Watch on Youtube - [442//0] x225 Linux Kernel Dummy Network Interface /drivers/net/dummy.c Network Namespace Research Part-2 ↗

libpcap Library | Linux User-space Network Stack Development ↗
Sunday' 06-Aug-2023
libpcap is a very popular user-space networking library, with which you can capture and or generate packets. libpcap is the underlying framework for many popular packet capture tools such as tcpdump, Wireshark and so on. In fact libpcap is a part of tcpdump project. But besides just using it as a packet capture tool, you can use libpcap in various applications, such as user-space based networking stack development, etc. In some cases libpcap is yet another alternative to raw-sockets and tun/tap interfaces.

The Linux Channel :: Sponsors ↗
Monday' 30-May-2022
Here is a list of all The Linux Channel sponsors/donors (individual/companies).

Inline Programming | Assembly | Scripts | php, python, shell, etc | Rust in Linux Kernel ↗
Friday' 12-May-2023
Inline programming is a technique where code statements are included directly in the text of a program, instead of being contained in separate files or modules. Inline programming can be useful for small or simple tasks, as it can eliminate the need for a separate script or function. One common example of inline programming is using JavaScripts, Php, etc in HTML documents to create dynamic content. Similarly in Linux Kernel we can find lot of instances where we can find inline programming such as inline assembly and now Rust within the Kernel source.

Linux Kernel /sysfs Interface ↗
Saturday' 14-May-2022
/sysfs is one of the most popular kernel to user-space interface which you can leverage to add an interface to your Kernel code such as Kernel modules, Kernel Device Drivers, etc. Although personally I prefer /proc interface than other alternatives such as /sysfs, ioctl() and so on for my personal Kernel modules/stack. So here is my detailed multi-episode Youtube video series on /sysfs Interface.

Rockchip ROC-RK3566-PC from Firefly | OpenWRT ↗
Thursday' 19-Oct-2023
Here is my multi-episode video series on evaluation of Rockchip ROC-RK3566-PC from Firefly with stock OpenWRT firmware.

What is purpose of Kernel Development - Example SMOAD Networks SDWAN Orchestrator Firewall Kernel Engine ↗
Monday' 18-Jul-2022
Often aspiring students may have this question, that what is the purpose of Linux Kernel Development. Since Linux Kernel is very mature and it has almost everything one would need. Usually, we need custom kernel development in the case of any new driver development for new upcoming hardware. And this happens on and on. But at times we may also come across few features/modules/components which are already provided by the Linux Kernel which are not adequate or atleast not the way we exactly intended to use. So, this is the real-world example, sometimes no matter what Linux Kernel provides as a part of stock Kernel/OS features, sometimes we have to write our own custom kernel stack or module(s) which can specifically cater our exact needs.

Linux Kernel Driver Device Trees ↗
Tuesday' 17-Jan-2023
The Linux kernel is the backbone of the Linux operating system. A device tree is a hierarchical tree structure that describes the various devices that are present in a system, including their properties and relationships to one another. The device tree is used by the Linux kernel to identify and initialize the different devices on a system, and to provide a consistent interface for interacting with them.

Linux Kernel vs User-space - Library APIs - Linux Kernel Programming ↗
Friday' 27-Oct-2023
One of the important aspects a beginner who is into Linux Kernel space systems software development has to understand is that unlike user-space C/C++ programming, where you can freely include any library APIs via respective #include files (which are dynamically linked during run-time via those /lib .so files), in the case of Kernel space programming, these library APIs are written within the Kernel source itself. These are the fundamental APIs which we commonly use, such as memcpy(), memcmp(), strlen(), strcpy(), strcpy() and so on. So here is my detailed Youtube video episode on the same with live demo, walk-through and examples.

Porting Sample libpcap C code to Raw Sockets | User-space Network Stack Framework ↗
Monday' 04-Sep-2023
Here is my multi-episode video series where I demonstrate how you can port the my libpcap sample code, discussed in the earlier episode to raw-socket. This code should further help you to design and architect your own user-space Network stack on top of this fundamental framework.

Roadmap - How to become Systems Software Developer ↗
Friday' 13-May-2022
When you are at the beginning of your career or a student, and aspire to become a software developer, one of the avenues to choose is to become a hard-core Systems Software Developer. However it is easier said than done, since there are many aspects to it as you explore further. As a part of systems developer, you can get into core kernel space developer, kernel device drivers developer, embedded developer and get into things like board bring-up, porting, etc, or can become a user-space systems programmer, and so on. So here is my detailed multi-episode Youtube video series on Roadmap - How to become Systems Software Developer.

Trending Video:
Watch on Youtube - [465//0] x21f Raspberry Pi Network Console Port | PiPG - Raspberry Pi Network Packet Generator Tool ↗

Socket Options - Socket Programming - setsockopt(), getsockopt() ↗
Saturday' 13-Mar-2021


Recommended Video:
Watch on Youtube - [928//0] x255 What is purpose of Kernel Development | Ex SMOAD Networks SDWAN Orchestrator Firewall Engine ↗