Re: [ECOS] I have problem in gdb-stub. pleas help me~

[Gary Thomas <gthomas at ecoscentric dot com>]

*************************************************
*************************************************
**                                             **
** Queries and/or responses should be sent to  **
** the discussion list ecos-discuss.  Direct   **
** email support is only available by contract **
**                                             **
*************************************************
*************************************************

On Wed, 2002-08-14 at 23:52, ddanggi wrote:
> 
> ----- Original Message ----- 
> From: "Gary Thomas" <gthomas@ecoscentric.com>
> To: "ddanggi" <ddanggi@adam.kaist.ac.kr>
> Cc: "eCos Discussion" <ecos-discuss@sources.redhat.com>
> Sent: Wednesday, August 14, 2002 10:06 PM
> Subject: Re: [ECOS] I have problem in gdb-stub. pleas help me~
> 
> 
> > On Wed, 2002-08-14 at 06:43, ddanggi wrote:
> > > I have problem in gdb-stub. 
> > > ( I want to port ecos system to my H/W-MPC850 board. and I use cygwin) 
> > > 
> > > I buid ecos-Kernel so get the library.
> > > And I make simple-test file with this library.
> > > (powerpc-eabi-gcc -g -I/c/building/8_05_install/include test.c -L/c/building/8_05_install/lib -Ttarget.ld -nostdlib -o test.exe)
> > > 
> > > Using powerpce-eabi-gdb(insight), I pushed the run button but there is no response.
> > > ( when gbd download the file, download status windows is displayed. 
> > >  Although the button below is change from Cancel to OK during download, the .vectors bar and .text bar is not full of 
> > > blue coloer. Is it right? )
> > > 
> > > I have two hypothesis.
> > > 
> > > The first is that my gdb-stub is incomplete.
> > > : I want to examin the gdb-stub using simple file which is independent ecos. but i find
> > > that compiling simple file with powerpc-eabi-gcc demand to make the new linker-script. so 
> > > I faild. 
> > > 
> > > The second is that the option of buiding ecos-Kenel is not proper.
> > > 
> > > please advise to me~
> > > 
> > 
> > First of all, we'd recommend that you use RedBoot instead of the simple
> > GDB stubs, as this will give you more capabilities on your board.
> > 
> > Try connecting a terminal emulator, such as minicom or hyperterm, to the
> > board at 38400/8N1.  When you turn it on, does it print "$T...."?  Until
> > it does this much, the GDB stubs aren't running.
> 
>     I saw the "$T...." on hyperterm. If I see "$T...." , can I assum that my gdb-stub operate correctly?

Yes.  Now what you should do is download the code and then
use GDB to single step through until you find out why your
code isn't working.

One thing you might try is to disable CYGSEM_HAL_USE_ROM_MONITOR

BTW, how did you build (or where did you obtain) the GDB stubs?

-- 
------------------------------------------------------------
Gary Thomas                  |
eCosCentric, Ltd.            |  
+1 (970) 229-1963            |  eCos & RedBoot experts
gthomas@ecoscentric.com      |
http://www.ecoscentric.com/  |
------------------------------------------------------------


-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss