QNX From The Board Up Series

QNX From The Board Up Series

QNX From The Board Up #14 - free()

Another quick detour to talk about free() and releasing memory.

QNX From The Board Up Series

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 Series

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 Series

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 Series

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 Series

QNX From The Board Up #9 - Kernel Initialization

Take a look at the relationship between the "Kernel" (aka "kernel code") and the "Kernel Process".

QNX From The Board Up Series

QNX From The Board Up #8 - Message-based IPC, Part 2

Learn about the asynchronous side of message-based IPC on QNX: pulses.

QNX From The Board Up Series

QNX From The Board Up #7 - Message-based IPC, Part 1

Take a look at sending, receiving, and replying to messages using message-based IPC provided by QNX kernel calls.

QNX From The Board Up Series

QNX From The Board Up #6 - printf()-ing and IPC, Part 2

Learn about message protocols over IPC, and recap what we've covered so far.

QNX From The Board Up Series

QNX From The Board Up #5 - printf()-ing and IPC, Part 1

Dive into the printf() rabbit hole and get introduced to inter-process communication (IPC) in QNX.

QNX From The Board Up Series

QNX From The Board Up #4 - Explore the Filesystem

Create your own "ls", explore the file system, and learn about the kernel's other resource managers.

QNX From The Board Up Series

QNX From The Board Up #3 - Hello, world!

Create a "Hello, world!" C program and run it on your minimal QNX system.