Vdso seems to be a way to make kernel function calls without using system calls by making the function available in a virtual dynamic shared object file.
m.linuxjournal.com/content/creating-vdso-colonels-other-chicken

On 16 Jan 2013 17:25, "F i L" <witte2008@gmail.com> wrote:
alex wrote:
@Fil: I haven't changed anything regarding GDB support (yet). I'm
sorry but I get myself desperate too about what the guys from MD
tend to do sometimes. ;)

Okay, I'll ask the Arch community then. Thanks


-- What is linux-vdso.so.1 ?

It's one of the many magical, compressed quantum alternate-reality links that Linux and GDB use to run smoothly. 'VDSO' stands for "Very Dense Singularity Object". Actually I just made all that up and I have no idea what it is, but I have a feeling I'll have to find out soon in order to fix this problem.