[U-Boot] Debugging u-boot with bdi3000 basics

[Mark Fanara]

As my target board is PowerPC based (and therefore skipping relocation
is not possible), I need help with my previously enumerated questions.

1) In section 10.4, Tips and Tricks, it says "To prevent GDB from
jumping around in the code when trying to single step, i. e. when it
seems as if the code is not executing line by line, you can recompile
your code with the following additional compiler options:
"-fno-schedule-insns -fno-schedule-insns"

In the u-boot developer world, what is the best practice for adding
these compiler options? I see CFLAGS in config.mk and assume that is
what needs to be modified. However, I need a HOWTODOITRIGHT

3) The function board_init_f() in board.c makes calls to debug(). I
cannot determine how to enable debug() output. I saw one reference in
the manual, but it gave no specifics.






On Thu, May 27, 2010 at 4:07 AM, Alan Carvalho de Assis
<acassis at gmail.com> wrote:
> Dear Wolfgang Denk,
>
> Yes, it is true.
>
> Currently only for ARMs and i386.
>
> Best Regards,
>
> Alan
>
> On 5/27/10, Wolfgang Denk <wd at denx.de> wrote:
>> Dear Alan Carvalho de Assis,
>>
>> In message <AANLkTik4FYpDAK9bHVKZrNDMvUyCCg-xDaBqTkqyZovL at mail.gmail.com>
>> you wrote:
>>> Hi Mark,
>>>
>>> On 5/27/10, Mark Fanara <mark.fanara at gmail.com> wrote:
>>> ...
>>> >
>>> > 2) I am using a bdi3000. Is there no way to build u-boot so that it is
>>> > directly loaded to RAM by the debugger and does not relocate itself?
>>> >
>>>
>>> #define CONFIG_SKIP_RELOCATE_UBOOT
>>
>> Note that this doesn't exist on ll architectures. For example on
>> PowerPC, we will always relocate.
>>
>> Best regards,
>>
>> Wolfgang Denk
>>
>> --
>> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
>> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
>> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
>> Die ganzen Zahlen hat der liebe Gott  geschaffen,  alles  andere  ist
>> Menschenwerk...                                     Leopold Kronecker
>>
>