Print stack info using rtems_stack_checker_report_usage_with_plugin()

[Fernando Domínguez Pousa]

Hi all,

I'm interested in getting stack information via an UDP message with an ASCII log trace inside. Basically, I cannot get the information using a printf. I found the function rtems_stack_checker_report_usage_with_plugin(rtems_printer* printer) in order to get the information and send it using my UDP log function. So first of all I created a function called logPlugin (I used as exampled the plugin at printf_plugin.c):

static int logPlugin(void *context, const char *format, va_list ap)
{
  (void) context;
  return addLog(INFO, STACK,format, ap); /* First two arguments are used to classify message at reception*/
}

Then at rtems_stack_checker_report_usage_with_plugin calling scope:

  rtems_printer printer;

  printer.context = NULL;
  printer.printer = logPlugin;

  rtems_stack_checker_report_usage_with_plugin(&printer);

It is important to say that addLog puts the message in a circular buffer that other task will read and send the content using UDP.

When stack checker report usage is called, only the information header is printed:     "                             STACK USAGE BY THREAD\n"
     "ID         NAME                  LOW        HIGH       CURRENT     AVAIL   USED\n"

Next, stack values are not printed correctly and I can only get a value that is constant and equal to the same memory location (in decimal).  It is a correct guide to implement this? I do not know how to use the printer struct context variable, can this cause my problem?

Thanks in advance,

Regards,


________________________________
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Fernando Domínguez Pousa
Ingeniero de Software
Software Engineer

GMV
Isaac Newton, 11
P.T.M. Tres Cantos
E-28760 Madrid
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