system_tap_example.stp

// run it like this:
// stap -v -x <PID> system_tap_example.stp

global count;

probe begin {
  count = 0;
  printf("Staring system tap session for pid=%i\n", target());
}

probe end {
if (pid() == target()) {
    printf("End of system tap session!\n");
  }
}

//probe process("mylibrary.so").function("do_something::*") {
//  if (pid() == target()) {
//    printf("%x: my function %s() called...\n", tid(), ppfunc());
//  }
//}

probe process("/usr/lib64/libc.so*").function("malloc") {
  if (pid() == target()) {
    if ($size > 20000) {
      printf("%s: malloc(%d)\n", ctime(gettimeofday_s()), $size);
      print_ubacktrace();
      printf("\n\n");
    }
  }
}

probe process("mylibrary.so").function("do_something") {
  if (pid() == target()) {
    ++count;
  }
}

probe process("mylibrary.so").function("dtor").return {
  if (pid() == target()) {
    printf("Number of counted calls: %d\n", count);
    count = 0;
    exit();
  }
}