To keep a repository clean from temporary files, git users can create a file named .gitignore and define wildcards or absolute paths to let git ignore these files. This works for the most users as expected but it does not remove already checked in files. If you also want to clean up your existing repository from these ignored files, there is an easy way to get a list of ignored files. Mehr…
At work we’re using Hudson to automatically build projects whenever something is changed in a SCM. For most projects you’ll get fast results if your checkin breaks something which you don’t mind because you not always rebuild the complete project. Now, OpenWrt brings its own toolchain, which compiles the complete local and cross-compiling stuff because the compiler on the host is normally a bit behind and does not contain latest fixes for ARM and other architectures. So how to save some time with not compiling the toolchain everytime a project is build? Mehr…
Hin und wieder möchte ich ein Stück Quellcode online stellen und dies nach Möglichkeit auch mit Syntax Highlighting. Unter WordPress gibt es dafür Plugins, jedoch für meine normale Website hatte ich dafür noch kein PHP Tool und so machte ich mich auf die Suche nach statischen Renderern, obwohl die Lösung zum Greifen nah lag. Mehr…
In Makefiles there is a nice command, called filter-out. This command takes 2 Arguments: first, the needle you want to filter out, second the haystack where it is in.
This was exactly what I needed. But everytime I tried it, it returned an empty string. The solution was too easy… make doesn’t complain if you write it with an underscore instead of a hyphen – and in makepp its written with a dash, so you will also get good looking Google results 
Thanks to Philip on gnu.make.bugs for pointing this out.
Today, I needed a JavaScript function that converts a number like 1234567 to something more beautiful like 1.234.567. And because I didn’t need to take notice of locale settings (like using a comma instead of a dot) most solutions on the web where just too much for me and I decided to write my own. Mehr…
Can you imagine to have 52 Windows XP virtual machines – 1GB RAM each – running on a server with just 16GB? Ok, sounds a lot… but we are near the 16GB barrier. Anyway, this is one of the features in the new 2.6.32 release. Its called Kernel Samepage Merging, KSM. Mehr…
Messwerte erfassen, speichern und auswerten – in der Industrie gang und gäbe, im Privathaushalt eher kaum zu finden. Da es doch für manche interessant ist zum Beispiel den Stromverbrauch täglich zu sehen und eventuell große Verbraucher ausfindig zu machen wäre es nun auch schön, einen handelsüblichen Zähler zu digitalisieren. Die Stromwerke machen es einem dabei jedoch meist nicht einfach. Mehr…
Today I had a strange error using the GCC version 4.4.1 with EABI support on a non thumb-ARMv4. Everytime I compiled something, with and w/o the -mno-thumb-interwork parameter it also contained the bx lr instruction which is only for later ARM processors with thumb support. Mehr…
While compiling OpenWrt for an ARM compatible processor I got the following error:
{standard input}: Assembler messages:
{standard input}:39: Error: selected processor does not support `bx r6'
I found the solution in the The definitive guide to GCC book from William Von Hagen (I don’t own it, I found it via Google Books). You have to disable the the USE_BX flag in the uClibc config file and everything will be fine. Mehr…
Letzte Kommentare