Single stepping in GDB while the telnet window is open
doesn't work terribly well.

There are oodles of these messages appearing when stepping.

target state: halted
target halted in ARM state due to breakpoint, current mode: Supervisor
cpsr: 0x60000013 pc: 0x0203c5dc

Obivously that's not helpful.

Some options:

1. remove asynchronous messages entirely without any configuration
option. The downside to this used to be bigger when halt/resume/reset
where asynchronous. Attached patch does that.
2. silencing *only* this annoying message in the case that it is *caused*
by GDB. Not quite sure how to do that, but I think a user might want
this.
3. add an option(yuk!) of sorts. Perhaps remove asynchronous messages
by default and make it possible to enable them? Who's going to find
this option anyway?
4. other...?


-- 
Øyvind Harboe
http://www.zylin.com/zy1000.html
ARM7 ARM9 XScale Cortex
JTAG debugger and flash programmer
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