QNX From The Board Up #17 - mmap() PRIVATE vs. SHARED
Dive into more internals of mmap() to understand files in memory, the semantics of MAP_PRIVATE vs. MAP_SHARED, and how these flags impact memory sharing and efficiency in QNX.
What’s It Like Working At QNX?
We sat down and talked candidly with some of our favorite QNX interns to see what they think about working at QNX.
QNX From The Board Up #16 - Let's write some utilities...
Take a quick break from memory to implement some common utilities like ls, shutdown, and uname on your own custom image. Simple, right? Right??
QNX From The Board Up #15 - Physical Memory & Video!
Learn about the relationship with physical memory addresses and how we can leverage that to finally draw something on the screen!
QNX Everywhere September Release: New Docs, Linux Porting Guide, and QNX 8.0.3!
Check out what's new in the September software release from the QNX Everywhere team.
QNX From The Board Up #14 - free()
Another quick detour to talk about free() and releasing memory.
QNX From The Board Up #13 - Virtual Addresses
Let's find the boundaries for virtual memory addresses then see what happens if you try to push past them!
QNX From The Board Up #12 - mmap(), Part 2
In this second post about memory allocation, we take a look at memory management units (MMUs), and virtual and physical addressing.
QNX From The Board Up #11 - malloc() and mmap()
Take an introductory look at mmap() to allocate memory, then use it to write your own version of malloc(). (And build a KISS version of cat for your custom image!)
QNX From The Board Up #10 - Kernel Initialization, Part 2
Enjoy this quick detour from our regularly-scheduled program for a (fun!) look at inspecting the kernel (and other processes) to see exactly what's running and how they are communicating.
QNX From The Board Up #9 - Kernel Initialization
Take a look at the relationship between the "Kernel" (aka "kernel code") and the "Kernel Process".
Hack The 6ix (2025) Recap
QNX had a great time at Hack The 6ix this year in Toronto! Here's a recap of what we saw.