How to configure GDB for software single-stepping on an ARM remote stub

[Jonas Zaddach]

Hi,

I have written a remote stub for some ARM hardware that supports just
memory breakpoints (the device does not have a hardware debugging
unit). I figured out that I need single-stepping to go around
breakpoints, and that there is support for software single-stepping in
the code ... but I have no idea on how to tell GDB that I want
software single-stepping on my target. Can you give me a hint how to
do it or where to look for documentation?

Thank you, Jonas