Dynamics memory in rtlinux

 Thank you everbody that help me to use C++ in rtlinux.
 Now I can use C++ in rtlinux but I cannot use dynamics memory.
//-------------------------begin hello.c -----------------------------
#include <rtl_cpp.h>

pthread_t thread;

class A {
protected:
	int a;
public:
	virtual void print()=0;
	A() { a = 1; rtl_printf("initializing A\n");}
	virtual ~A() { rtl_printf("uninitializing A\n"); }
};

class B : public A
{
public:
	B() { a = 1; rtl_printf("initializing B\n");}
	~B() { rtl_printf("uninitializing B\n");}
	virtual void print() { rtl_printf("B::print: %d\n", a); }
};

B a;
A *ptr_b;

void * start_routine(void *arg)
{
	struct sched_param p;
	p . sched_priority = 1;
	pthread_setschedparam (pthread_self(), SCHED_FIFO, &p);

	pthread_make_periodic_np (pthread_self(), gethrtime(), 500000000);

	while (1) {
		pthread_wait_np ();
		rtl_printf("I'm here; my arg is %x\n", (unsigned) arg);
	}
	return 0;
}


int init_module(void) {
	__do_global_ctors_aux();
	ptr_b = new B;
	ptr_b -> print();
	return pthread_create (&thread, NULL, start_routine, 0);
}

void cleanup_module(void) {
	pthread_delete_np (thread);
	delete ptr_b;
	__do_global_dtors_aux();
}
//---------------------- end hello.c ------------------------------------


 I need to use new and delete operator in start_routine() function like this

// -----------------------
void * start_routine(void *arg)
{
        A *ptr_c;
        ptr_c = new B;
	ptr_c -> print();

	struct sched_param p;
	p . sched_priority = 1;
	pthread_setschedparam (pthread_self(), SCHED_FIFO, &p);

	pthread_make_periodic_np (pthread_self(), gethrtime(), 500000000);

	while (1) {
		pthread_wait_np ();
		rtl_printf("I'm here; my arg is %x\n", (unsigned) arg);
	}

        delete ptr_c;
	return 0;
}
//---------------------
  The system will hang if I code like this. Could you please tell me how
to do dynamics memory object in rtlinux.

  Thank you very much for your help.



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