Re: [ECOS] GDB "invalid remote reply"...

[Jonathan Larmour <jifl at eCosCentric dot com>]

Schumacher, Gordon wrote:
> As suggested (and as planned), I'm trying to get Insight/GDB running on my
> setup.
>
> I open the .out file and select Run->Connect To Target.  Most of the time,
> it just hangs.
> The rare times that it doesn't, I can then type "continue" in the console,
> or alternately select "Control->Step" (the results are identical.)
>
> A few seconds after this, I get a message back saying, "Invalid remote
> reply: 00ttrraa::0000002200::44cc000000::88ee0000".
Looks like your UART is spitting out double characters. If you use the GDB 
console you can try using "set debug remote 1" and then definitely seeing 
what gets sent and received.

> I also tend to see "Ignoring packet error" and "Packet instead of Ack"
> messages with some frequency in the debug output.
Definitely looks like some serial errors somewhere.

> I suspect that my code may be blowing up somewhere, as when the "Connect To
> Target" works, the debugger indicates that the code is somewhere in
> cyg_libc_main_stack() (which should be data, no?)
Sometimes GDB tries to do a best guess and fails. Don't *necessarily* read 
too much into the code name it suggests. Instead look at the address. When 
connecting to a RedBoot running in ROM it should be a ROM address.

Jifl
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