Welcome to my thecnical blog

Linux module to disassemble code in the Linux kernel.

Published at February 18, 2020 ·  4 min read

Here is a simple module to disassemble memory using a Linux kernel module. This module is integrated into this module based on Zydis. Also, there is a userspace application to demonstrate the Zydis library on a test function in user space and disassembly of the same c function at the kernel space. Also can dissemble internal c functions of the kernel like printk, kmalloc, etc.' It could download the project from here....

Linux core isolation

Published at February 18, 2020 ·  1 min read

I have a real-time task that needed to run periodically at a constant rate - a continuous IRQ drives it. Just running this task on a multithreaded environment can cause it to run in different timing values. When the system runs on stress (using stress utility) the system is not a response to all IRQ requests. A possible solution to this problem is to use Linux core isolation. In this case, we assign a specific core for the task, and the Linux kernel is getting out from the SMP balancing, and this core can use for a particular job with minimal interrupts....

Color transformation from Bayer to RGB

Published at February 17, 2020 ·  4 min read

A Bayer filter mosaic is a color filter array (CFA) for arranging RGB color filters on a square grid of photosensors. Its particular arrangement of color filters is used in most single-chip digital image sensors used in digital cameras, camcorders, and scanners to create a color image. The filter pattern is 50% green, 25% red and 25% blue - see here. Color conversion algorithm The conversion algorithm is based on simple linear interpolation of pixels to find the missing value....

My First Post

Published at February 10, 2020 ·  2 min read

It is My first Hugo post. I decided to work with Hugo after I had experience with word press. I write documents in Markdown format and use GitHub to manage my files, tags, and categories instead of using MySQL database is much easier to manage and deploy. To learn how to create such a blog in Hugo, you can try this blog. Table Of Contents diagram mathematical equations Refer to table of content for more information on creating a Hugo post with a table of contents....

Creating a New Theme

Published at September 28, 2014 ·  34 min read

Introduction This tutorial will show you how to create a simple theme in Hugo. I assume that you are familiar with HTML, the bash command line, and that you are comfortable using Markdown to format content. I’ll explain how Hugo uses templates and how you can organize your templates to create a theme. I won’t cover using CSS to style your theme. We’ll start with creating a new site with a very basic template....

Getting Started with Hugo

Published at April 2, 2014 ·  2 min read

Step 1. Install Hugo Go to Hugo releases and download the appropriate version for your OS and architecture. Save it somewhere specific as we will be using it in the next step. More complete instructions are available at Install Hugo Step 2. Build the Docs Hugo has its own example site which happens to also be the documentation site you are reading right now. Follow the following steps: Clone the Hugo repository Go into the repo Run hugo in server mode and build the docs Open your browser to http://localhost:1313 Corresponding pseudo commands:...

(Hu)go Template Primer

Published at April 2, 2014 ·  7 min read

Hugo uses the excellent Go html/template library for its template engine. It is an extremely lightweight engine that provides a very small amount of logic. In our experience that it is just the right amount of logic to be able to create a good static website. If you have used other template systems from different languages or frameworks you will find a lot of similarities in Go templates. This document is a brief primer on using Go templates....

Migrating from Jekyll

Published at March 10, 2014 ·  4 min read

Move static content to static Jekyll has a rule that any directory not starting with _ will be copied as-is to the _site output. Hugo keeps all static content under static. You should therefore move it all there. With Jekyll, something that looked like ▾ <root>/ ▾ images/ logo.png should become ▾ <root>/ ▾ static/ ▾ images/ logo.png Additionally, you’ll want any files that should reside at the root (such as CNAME) to be moved to static....