Browsing All posts tagged under »kernel«

Disabling system beep in Linux

December 13, 2011

0

I noticed that on my Debian Testing installation the system beep is active, even though my computer has a nice and common integrated sound card. To disable the annoying beeps at start-up and shut-down, the common solution is to blacklist the “pcspkr” module, which is responsible for the beeping noise. I noticed that most advices […]

ELCE 2011 videos are out

November 8, 2011

1

As usual, FreeElectrons hosts the videos of the Embedded Linux Conference Europe, together with the presented material: Embedded Linux Conference Europe 2011 videos Here is a personal selection of videos that I find most interesting: Linus Torvalds, Alan Cox, Thomas Gleixner, Paul McKenney moderated by Lennart Poettering Kernel Developer Panel Video (55 minutes): full HD […]

Compiling Linux kernel 3.0 with Emdebian ARM toolchain

July 24, 2011

16

The Emdebian project works to bring Debian on embedded platforms, with repositories of custom distributions and toolchains to cross-compile software. I wanted to try their ARM toolchains, and coincidentally the Linux kernel 3.0 has been released in these days, so I tried to cross-compile it and emulate it on QEMU. These tests have been done […]

Coding styles comparison in the Open Source Software world

December 28, 2010

22

While looking for existing C coding standards I discovered that the GNU and Linux projects officially suggest very different styles. Inside the Linux kernel documentation, Linus Torvalds goes so far as to mock GNU coding standards: First off, I’d suggest printing out a copy of the GNU coding standards, and NOT read it. Burn them, […]

Custom hardware modeling with QEMU (ELC 2010)

September 4, 2010

2

The videos of the presentations held at the Embedded Linux Conference 2010 have been recently made public on Free Electrons. I was particularly interested in one speech: Custom Hardware Modeling for FPGAs and Embedded Linux Platforms with QEMU (PDF slides and OGV video). John Williams (PetaLogix) illustrates the work they have been doing on reducing […]

Debugging ARM programs inside QEMU

August 17, 2010

50

A tutorial that shows how to debug an ARM Linux program inside a platform emulated with QEMU. The tutorial uses gdbserver to connect the program executing in the guest system to the debugger running on the host system.

Running Linux on new OpenRisc simulator or1ksim 0.4.0

July 13, 2010

13

The guys at OpenCores released a new version of their OpenRisc core, tweaking many hardware bug but also porting Linux kernel 2.6.24 to their simulation platform, that is called or1ksim. The procedure (found here) to try Linux on the new simulator is straightforward and involves executing a script. The script hides most of the complexity […]

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