/*
* Initialize all of the debugging state in a port.
* Insert the port into a global list of all allocated ports.
*/
void
ipc_port_init_debug(
ipc_port_t port)
{
unsigned int i;
port->ip_thread = current_thread();
port->ip_timetrack = port_timestamp++;
for (i = 0; i < IP_CALLSTACK_MAX; ++i)
port->ip_callstack[i] = 0;
for (i = 0; i < IP_NSPARES; ++i)
port->ip_spares[i] = 0;
/*
* Machine-dependent routine to fill in an
* array with up to IP_CALLSTACK_MAX levels
* of return pc information.
*/
machine_callstack(&port->ip_callstack[0], IP_CALLSTACK_MAX);
#if 0
lck_mtx_lock(&port_alloc_queue_lock);
++port_count;
if (port_count_warning > 0 && port_count >= port_count_warning)
assert(port_count < port_count_warning);
queue_enter(&port_alloc_queue, port, ipc_port_t, ip_port_links);
lck_mtx_unlock(&port_alloc_queue_lock);
#endif
}
/*
* Routine: ipc_port_callstack_init_debug
* Purpose:
* Calls the machine-dependent routine to
* fill in an array with up to IP_CALLSTACK_MAX
* levels of return pc information
* Conditions:
* May block (via copyin)
*/
void
ipc_port_callstack_init_debug(
uintptr_t *callstack,
unsigned int callstack_max)
{
unsigned int i;
/* guarantee the callstack is initialized */
for (i=0; i < callstack_max; i++)
callstack[i] = 0;
if (ipc_portbt)
machine_callstack(callstack, callstack_max);
}
