examples/instrument-test.c

   1 /* this is a program which uses eCos instrumentation buffers; it needs
   2    to be linked with a kernel which was compiled with support for
   3    instrumentation */
   4
   5 #include <stdio.h>
   6 #include <pkgconf/kernel.h>
   7 #include <cyg/kernel/instrmnt.h>
   8 #include <cyg/kernel/kapi.h>
   9
  10 #ifndef CYGVAR_KERNEL_INSTRUMENT_EXTERNAL_BUFFER
  11 # error You must configure eCos with CYGVAR_KERNEL_INSTRUMENT_EXTERNAL_BUFFER
  12 #endif
  13
  14 struct Instrument_Record
  15 {
  16     CYG_WORD16  type;                   // record type
  17     CYG_WORD16  thread;                 // current thread id
  18     CYG_WORD    timestamp;              // 32 bit timestamp
  19     CYG_WORD    arg1;                   // first arg
  20     CYG_WORD    arg2;                   // second arg
  21 };
  22
  23 struct Instrument_Record instrument_buffer[20];
  24 cyg_uint32        instrument_buffer_size = 20;
  25
  26 int main(void)
  27 {
  28   int i;
  29
  30   cyg_instrument_enable(CYG_INSTRUMENT_CLASS_CLOCK, 0);
  31   cyg_instrument_enable(CYG_INSTRUMENT_CLASS_THREAD, 0);
  32   cyg_instrument_enable(CYG_INSTRUMENT_CLASS_ALARM, 0);
  33
  34   printf("Program to play with instrumentation buffer\n");
  35
  36   cyg_thread_delay(2);
  37
  38   cyg_instrument_disable(CYG_INSTRUMENT_CLASS_CLOCK, 0);
  39   cyg_instrument_disable(CYG_INSTRUMENT_CLASS_THREAD, 0);
  40   cyg_instrument_disable(CYG_INSTRUMENT_CLASS_ALARM, 0);
  41
  42   for (i = 0; i < instrument_buffer_size; ++i) {
  43     printf("Record %02d: type 0x%04x, thread %d, ",
  44            i, instrument_buffer[i].type, instrument_buffer[i].thread);
  45     printf("time %5d, arg1 0x%08x, arg2 0x%08x\n",
  46            instrument_buffer[i].timestamp, instrument_buffer[i].arg1,
  47            instrument_buffer[i].arg2);
  48   }
  49   return 0;
  50 }