C++ (Cpp) UAP_PROGRAM_COUNTER Examples

Example #1

File: os-unix.cpp Project: 8byte-jose/factor

void factor_vm::dispatch_signal(void *uap, void (handler)())
{
	UAP_STACK_POINTER(uap) = (UAP_STACK_POINTER_TYPE)fix_callstack_top((stack_frame *)UAP_STACK_POINTER(uap));
	UAP_PROGRAM_COUNTER(uap) = (cell)handler;

	ctx->callstack_top = (stack_frame *)UAP_STACK_POINTER(uap);
}

Example #2

File: os-unix.cpp Project: pombreda/factor

void memory_signal_handler(int signal, siginfo_t* siginfo, void* uap) {
  factor_vm* vm = current_vm();
  vm->verify_memory_protection_error((cell)siginfo->si_addr);
  vm->signal_fault_addr = (cell)siginfo->si_addr;
  vm->signal_fault_pc = (cell)UAP_PROGRAM_COUNTER(uap);
  vm->dispatch_signal(uap, factor::memory_signal_handler_impl);
}

Example #3

File: os-unix.cpp Project: pombreda/factor

void sample_signal_handler(int signal, siginfo_t* siginfo, void* uap) {
  factor_vm* vm = current_vm_p();
  bool foreign_thread = false;
  if (vm == NULL) {
    foreign_thread = true;
    vm = thread_vms.begin()->second;
  }
  if (atomic::load(&vm->sampling_profiler_p))
    vm->safepoint.enqueue_samples(vm, 1, (cell)UAP_PROGRAM_COUNTER(uap),
                                  foreign_thread);
  else if (!foreign_thread)
    enqueue_signal(vm, signal);
}

Example #4

File: os-unix.c Project: Rogers-zz/factor

INLINE F_STACK_FRAME *uap_stack_pointer(void *uap)
{
	/* There is a race condition here, but in practice a signal
	delivered during stack frame setup/teardown or while transitioning
	from Factor to C is a sign of things seriously gone wrong, not just
	a divide by zero or stack underflow in the listener */
	if(in_code_heap_p(UAP_PROGRAM_COUNTER(uap)))
	{
		F_STACK_FRAME *ptr = ucontext_stack_pointer(uap);
		if(!ptr)
			critical_error("Invalid uap",(CELL)uap);
		return ptr;
	}
	else
		return NULL;
}

Example #5

File: os-unix.c Project: Rogers-zz/factor

void misc_signal_handler(int signal, siginfo_t *siginfo, void *uap)
{
	signal_number = signal;
	signal_callstack_top = uap_stack_pointer(uap);
	UAP_PROGRAM_COUNTER(uap) = (CELL)misc_signal_handler_impl;
}

Example #6

File: os-unix.c Project: Rogers-zz/factor

void memory_signal_handler(int signal, siginfo_t *siginfo, void *uap)
{
	signal_fault_addr = (CELL)siginfo->si_addr;
	signal_callstack_top = uap_stack_pointer(uap);
	UAP_PROGRAM_COUNTER(uap) = (CELL)memory_signal_handler_impl;
}

Example #7

File: os-unix.cpp Project: pombreda/factor

void factor_vm::dispatch_signal(void* uap, void(handler)()) {
  dispatch_signal_handler((cell*)&UAP_STACK_POINTER(uap),
                          (cell*)&UAP_PROGRAM_COUNTER(uap),
                          (cell)FUNCTION_CODE_POINTER(handler));
  UAP_SET_TOC_POINTER(uap, (cell)FUNCTION_TOC_POINTER(handler));
}