How to build the GDB stub Floppy for PC386 target?

[Boris V. Guzhov]

Thanks,

But still there are the problems.

I have located my test.exe file in the FS_GRUB diskette
and load my target PC with it. Then I ran my test with GDB.

Then I have bulided "Hello world" test.exe.
Then I run gdb:

gdb hello.exe
(gdb) set remotebaud 38400
(gdb) target remote /dev/ttyS0
Remote debugging using /dev/ttyS0
realloc (ptr=..., size=...)
     at ...malloc.c:268
268            if (!size) {
(gdb)

Good! There is a connect!

But then it does not work.

For examle, a cannot to run "load" command:
(gdb) load
Loading section .text, size ...
Ignoring packet error, continuing ...

How to load another  application in target with
using GDB?

I want to have in target only GDB stub
and to load any application through GDB
with using "load" command.

Will somebody help with this problem? I will very much obliged.

Boris V. Guzhov,
St.Petersburg



>
>> Hi All!
>>
>> I have:
>> - Linux Red Hat 6.0 host
>> - pc486 target (usual computer)
>>
>> I build the "Hello world" simple application.
>>
>> How to build the GDB stub Floppy for target?
>
>
>1. Read c/src/lib/libbsp/i386/pc386/HOWTO
>
>> How to load the my application  in my target with usage of the
>> I386-rtems-gdb?
>
>2. Add following fragment to the init task
>#if 1
>  /* Init GDB glue  */
>
>  if(BSPConsolePort != BSP_UART_COM2)
>    {
>      /*
>       * If com2 is not used as console use it for
>       * debugging
>       */
>      i386_stub_glue_init(BSP_UART_COM2);
>    }
>  else
>    {
>      /* Otherwise use com1 */
>      i386_stub_glue_init(BSP_UART_COM1);
>    }
>
>  /* Init GDB stub itself */
>  set_debug_traps();
>
>  /*
>   * Init GDB break in capability,
>   * has to be called after
>   * set_debug_traps
>   */
>  i386_stub_glue_init_breakin();
>
>  /* Put breakpoint in */
>  breakpoint();
>
>#endif  /* 0 */
>