Re: [ECOS] GDB remote debug problem ??

["???" <jclin@itri.org.tw>]

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----- Original Message -----
From: "Jonathan Larmour" <jlarmour@redhat.com>
To: "ªL§Ó³Ó" <jclin@itri.org.tw>
Cc: <ecos-discuss@sources.redhat.com>
Sent: Saturday, March 31, 2001 12:36 AM
Subject: Re: [ECOS] GDB remote debug problem ??


ªL§Ó³Ó wrote:
>
> Hi everyone:
>
>     I am porting eCos on my custom MPC823 board.
> Redboot can boot from flash and work fine on my board.
> I want use GDB to debug hello example step by step.
> If I uncheck the set any breakpoint at target settings.. ;
> The console can see"Hello eCos world " output.
> But if I check set breakpoint at main, the console will show
> $T05thread:00000002;40:000204ac;01:00031af8;#b4
> and GDB on my NT can't control my borad any more.
> What problem may I meet?? Is redboot problem, hello,
> or GDB problem??

That $T packet indicates that you have hit the breakpoint in main. But
unless you have enabled remote protocol debugging within GDB, you shouldn't
have seen that - it's part of the underlying protocol. And then of course
you could be able to continue the program from the breakpoint by typing
"continue" - I assume this isn't happening?

Jifl
--
Red Hat, Rustat House, Clifton Road, Cambridge, UK. Tel: +44 (1223) 271062
Maybe this world is another planet's Hell -Aldous Huxley || Opinions==mine

Hi :
    Thank you for your reply!! I describe my steps
1. Reset my borad by pressing the reset buttom.
2. Run powerpc-eabi-gdb
3. press the 'RUN' buttom
4. select the hello.exe I want to debug
5. select target Remote TCP & set breakpoint at main
6. download OK & I see my serial console print $T ...
7. I can't do anything but press the stop buttom on powerpc-eabi-gdb
8. powerpc-eabi-gdb get no response from from by board & dettach from it.

But if step 5. I select Remote serial , then everything will be OK. I can
stop
the hello program at main and run step by step.
What problem may it happen?? Is my ethernet driver's problem?? or something
??
What point may I check??

Thanks very much!!

Ken