Error Running HelloWorld on new BSP

[Olufowobi, Habeeb]

Hi Joel,

When I set the breakpoint at boot_card, this how far I could get;

(gdb) step
_Terminate (the_source=RTEMS_FATAL_SOURCE_EXCEPTION,
    is_internal=false, the_error=536874976)
    at
../../../../../../../rtems.git/c/src/../../cpukit/score/src/interr.c:52
52      _CPU_Fatal_halt( the_source, the_error );
(gdb) step
arm_interrupt_disable ()
    at ../../cpukit/../../../tm4c129e/lib/include/rtems/score/cpu.h:345
345      uint32_t basepri = 0x80;
(gdb) step
347      __asm__ volatile (
(gdb) step
357      return level;
(gdb) step
358    }
(gdb) step




And the backtrace is below

Program received signal SIGINT, Interrupt.
0x0000a6ac in _Terminate (
    the_source=RTEMS_FATAL_SOURCE_EXCEPTION, is_internal=false,
    the_error=536874976)
    at
../../../../../../../rtems.git/c/src/../../cpukit/score/src/interr.c:52
52      _CPU_Fatal_halt( the_source, the_error );
(gdb) bt
#0  0x0000a6ac in _Terminate (
    the_source=RTEMS_FATAL_SOURCE_EXCEPTION, is_internal=false,
    the_error=536874976)
    at
../../../../../../../rtems.git/c/src/../../cpukit/score/src/interr.c:52
#1  0x000085b0 in rtems_fatal (
    source=RTEMS_FATAL_SOURCE_EXCEPTION, error=536874976)
    at
../../../../../../../rtems.git/c/src/../../cpukit/sapi/src/fatal2.c:34
#2  0x00013bfc in _ARM_Exception_default (frame=0x20000fe0)
    at
../../../../../../../../../rtems.git/c/src/../../cpukit/score/cpu/arm/arm-exception-default.c:24
#3  <signal handler called>
#4  0x00000000 in bsp_start_vector_table_begin ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)


Regards,
Habeeb


On Fri, Jun 17, 2016 at 12:51 PM, Joel Sherrill <joel at rtems.org> wrote:

>
>
> 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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>>
>
>
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