Browsing All Posts filed under »Software«

Collusion: a plugin to visualize cookie trackers

July 9, 2012


All the relevant sites on the Internet use cookies in some way or another. All the cookies in our browser can be considered the digital traces we leave when we surf. Up until now I had difficulties understanding the dimension of the problem, or how much of me is potentially passed around without asking my […]

Free Electrons Android training materials

June 20, 2012


Free Android training materials – Free Electrons blog. Free Electrons publishes another set of extremely useful materials that include instructional slides, source code and documentation. The objective of the course is to familiarize with Android from its lowest levels, using also this Devkit8000 embedded board. The (383) slides and the (24-pages-long) hands-on lab exercises are […]

Google Drive is here!

April 25, 2012


Your Google Drive is not ready yet Well, almost here… Here is a quick comparison on some of the remote storage and file sync solutions that I consider important: Online Service Win Mac Linux Android iPhone Web Client-side Encryption Initial Space Client Source Server Source Google Drive Yes Yes No Yes Soon Yes No 5GB […]

How programmers can easily choose strong passwords

April 22, 2012


Choosing a password is always a trade-off between security and usability. Programmers can shift this compromise thanks to some qualities of their work. The idea is to use lines of code as passwords.

ARM926 interrupts in QEMU

April 15, 2012


In this post I prepared what I think is the simplest example on how to manage interrupts for the widespread ARM926 core. From this example one can expand the complexity of the interrupt management at will. I’m going to test the functionality with QEMU, emulating the Versatile Platform Baseboard. I based this example on my […]

ELC 2012 videos and slides

April 7, 2012


Free Electrons posted the videos of the last Embedded Linux Conference 2012. Unfortunately most of the videos have really bad audio quality, so maybe this time reading the slides will be more effective. The most interesting topics for me are the following: The Kernel report Binary Blobs Attack!!! Status of embedded Linux Experiences With Device […]

Compile Linux kernel 3.2 for ARM and emulate with QEMU

March 31, 2012


This is a tutorial to: 1. Get Linux kernel 3.2 source code 3. Configure and compile for Versatile Express ARM Cortex-A9 platform 4. Prepare and create a ramdisk using initramfs schema 5. Emulate kernel boot and ramdisk execution using QEMU

FOSDEM 2012 videos

March 18, 2012


The videos of the lastĀ Free and Open source Software Developers’ European Meeting 2012 have been uploaded. The most interesting videos for me are the following: ARM BoF: state of the ARM architecture porting of various Linux distros (54:40 video) Debian secrets: useful information to get started on using or developing Debian (41:24 video) Multiarch: why […]

Linking a binary blob with GCC

February 19, 2012


There’s a simple way to include binary data inside an executable, when using a GCC toolchain. The trick relies on using objcopy to transform the binary blob of data into an object file that can be linked. In this example I am creating a binary blob of 16 bytes of random data in file “blob.bin“: […]

2012 Embedded Linux Conference Schedule

January 23, 2012


For anyone interested, the schedule for the next Embedded Linux Conference, held in San Francisco bay on the 15-16-17 of February, is out: 2012 Embedded Linux Conference | Schedule | Linux Foundation Events.


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