Questions for SMP feature.

[Thomas Kim]

Dear Chris,

I had a mistake.

I had a problem for configurating Xilinx SDK tool debug configuration.

After I fix this on Xilinx tool, my example code is working.

Thank you very much for your concern.

Best Regards,
Thomas Kim

2017-04-18 11:32 GMT+09:00 Chris Johns <chrisj at rtems.org>:

> On 17/04/2017 21:47, Thomas Kim wrote:
>
>> Dear Sir,
>>
>> I get ZynQ real board(name: ZYBO ZynQ-7000 Development Board).
>> I was succeful to test SMP feature on my ZynQ real board after minor
>> part(UART config) is modified.
>> But, after I enable rtems-libbsd in below, RTEMS is not worked.
>>
>> My example code is below;
>>
>> void *POSIX_Init(void *argument)
>> {
>>  rtems_status_code         sc;
>> #if 0 // Thomas. when below bsd initialization code is executed, RTEMS
>> is not worked.
>>  /* FreeBSD Initialization */
>>  sc = rtems_media_initialize();
>>  ASSERT_SC(sc);
>>  sc = rtems_media_listener_add(media_listener, NULL);
>>  ASSERT_SC(sc);
>>  sc = rtems_media_server_initialize(200, 32 * 1024, RTEMS_DEFAULT_MODES,
>> RTEMS_DEFAULT_ATTRIBUTES);
>>  ASSERT_SC(sc);
>>  sc = rtems_bsd_initialize();
>>  ASSERT_SC(sc);
>>  network_ifconfig_lo0();
>> #endif
>>  sc = rtems_task_create( rtems_build_name ('S', 'H', 'E', 'L'),
>>   10, 4096, RTEMS_DEFAULT_MODES, RTEMS_DEFAULT_ATTRIBUTES,
>> &Task_Shell_id);
>>  sc = rtems_task_start( Task_Shell_id, shell_start, 1 );
>> }
>>
>> At this time, I just used "#define CONFIGURE_MAXIMUM_PROCESSORS    2"
>> option only for this.
>>
>
> You do need this. I suspect a number of the libbsd tests do not have this
> set which would seem like a bug to me. I see the debugger01 test fails if I
> add this setting to it.
>
> I have questions.
>>
>> Can RTEMS SMP feature is using both rtems kernel and rtems-libbsd ?
>>
>
> Yes. The configure phase of the build will indicate if the RTEMS you are
> building against has been built with SMP enabled.
>
> If I need additional configuration for using rtems-libbsd with SMP
>> feaure, plesae let me know that.
>>
>
> There is a test in libbsd called smp01. I suggest you take a look at that
> test.
>
> Chris
>
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