Error Running HelloWorld on new BSP

[Joel Sherrill]

On Fri, Jun 17, 2016 at 11:33 AM, Olufowobi, Habeeb <
habeeb.olufowobi at bison.howard.edu> wrote:

> Hi,
>
> I was able to print the frame and below is the result. Also, I realised
> the problem is from the uart. Any ideas on how to resolve this?
>
>
> (gdb) print *frame
> $1 = {register_r0 = 115200, register_r1 = 1, register_r2 = 0,
>   register_r3 = 1073790976, register_r4 = 0, register_r5 = 0,
>   register_r6 = 0, register_r7 = 536875096, register_r8 = 0,
>   register_r9 = 0, register_r10 = 0, register_r11 = 0,
>   register_r12 = 536894384, register_sp = 120,
>   register_lr = 0x138d <initialize+60>,
>   register_pc = 0x1290 <get_baud_div>,
>   register_xpsr = 1090519040, vector = 3,
>   vfp_context = 0x0 <bsp_start_vector_table_begin>,
>   reserved_for_stack_alignment = 536875056}
>
>
>
Not knowing this particular BSP, can you set a breakpoint at various points
in
the assembly startup? At boot_card? How far do you get?

Does the code in memory look like it is supposed to versus
arm-rtems4.12-objdump?




> On Wed, Jun 15, 2016 at 12:04 PM, Olufowobi, Habeeb <
> habeeb.olufowobi at bison.howard.edu> wrote:
>
>> Hi,
>>
>> I have been working on getting the console running for the past few days
>> but I am still getting some errors.
>> I realized that the system control configuration of the board family
>> (LM3S69XX) was different so I had to rewrite the bspstart.c and the
>> lm3s69xx.h to suit the TM4C129E I am working on.
>> Presently, HelloWorld halt at "CPU_FATAL_HALT(the_source, the_error)" and
>> I am getting RTEMS_FATAL_SOURCE_EXCEPTION in the_source and an error code.
>> I am not sure how to debug this but reading about it.
>>
>> Below is the backtrace of the error message.
>> Kindly assist.
>>
>> ^C
>> Program received signal SIGINT, Interrupt.
>> 0x00004b22 in _Terminate (
>>     the_source=the_source at entry=RTEMS_FATAL_SOURCE_EXCEPTION,
>>     is_internal=is_internal at entry=false, the_error=536875064)
>>     at
>> ../../../../../../../rtems.git/c/src/../../cpukit/score/src/interr.c:52
>> 52  _CPU_Fatal_halt( the_source, the_error );
>> (gdb) bt
>> #0  0x00004b22 in _Terminate (
>>     the_source=the_source at entry=RTEMS_FATAL_SOURCE_EXCEPTION,
>>     is_internal=is_internal at entry=false, the_error=536875064)
>>     at
>> ../../../../../../../rtems.git/c/src/../../cpukit/score/src/interr.c:52
>> #1  0x0000404a in rtems_fatal (
>>     source=source at entry=RTEMS_FATAL_SOURCE_EXCEPTION,
>>     error=<optimized out>)
>>     at
>> ../../../../../../../rtems.git/c/src/../../cpukit/sapi/src/fatal2.c:34
>> #2  0x00007be2 in _ARM_Exception_default (frame=<optimized out>)
>>     at
>> ../../../../../../../../../rtems.git/c/src/../../cpukit/score/cpu/arm/arm-exception-default.c:24
>> #3  <signal handler called>
>> #4  0x00000080 in bsp_start_vector_table_begin ()
>> #5  0x00000000 in ?? ()
>> (gdb)
>>
>>
>
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