Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Embedded Linux Development Using Yocto Project Cookbook
  • Table Of Contents Toc
  • Feedback & Rating feedback
Embedded Linux Development Using Yocto Project Cookbook

Embedded Linux Development Using Yocto Project Cookbook

By : Alex Gonzalez
3.8 (8)
close
close
Embedded Linux Development Using Yocto Project Cookbook

Embedded Linux Development Using Yocto Project Cookbook

3.8 (8)
By: Alex Gonzalez

Overview of this book

The Yocto Project has become the de facto distribution build framework for reliable and robust embedded systems with a reduced time to market.You'll get started by working on a build system where you set up Yocto, create a build directory, and learn how to debug it. Then, you'll explore everything about the BSP layer, from creating a custom layer to debugging device tree issues. In addition to this, you’ll learn how to add a new software layer, packages, data, scripts, and configuration files to your system. You will then cover topics based on application development, such as using the Software Development Kit and how to use the Yocto project in various development environments. Toward the end, you will learn how to debug, trace, and profile a running system. This second edition has been updated to include new content based on the latest Yocto release.
Table of Contents (7 chapters)
close
close

Using dynamic kernel tracing


Kprobes is a kernel debugging facility that allows us to dynamically break into almost any kernel function (except kprobe itself) to collect debugging and profiling information non-disruptively. Architectures can keep an array of blacklisted functions, which cannot be probed using Kprobes.

Because kprobes can be used to change a function's data and registers, it should only be used in development environments.

There are three types of probes:

  • kprobes: This is the kernel probe, which can be inserted into any location with more than one kprobe added at a single location, if needed.
  • jprobe: This is the jumper probe inserted at the entry point of a kernel function to provide access to its arguments. Only one jprobe may be added at a given location.
  • kretprobe: This is the return probe and triggers on a function return. Also, only one kretprobe may be added to the same location.

They are packaged into a kernel module, with the init function registering the probes and the...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech

Create a Note

Modal Close icon
You need to login to use this feature.
notes
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Delete Note

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Edit Note

Modal Close icon
Write a note (max 255 characters)
Cancel
Update Note

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY