Implementation of different software breakpoint kinds in gdb server

[Michal Lesniewski]

Ok, so all this really looks like a lot of work. I think first I'll have a
look at the code in mem-break.c and try to add support for different kinds
of breakpoints. This must be done first anyway, I guess. I'll let you know
about my results, observations and further ideas. 

Thank you for your time and comments :-)

Michal Lesniewski