C++ (Cpp) task_has_64BitAddr Examples

Example #1

File: machine_task.c Project: Prajna/xnu

/*
 * Set initial default state on a thread as stored in the MACHINE_TASK data.
 * Note: currently only debug state is supported.
 */
kern_return_t
machine_thread_inherit_taskwide(
				thread_t thread,
				task_t parent_task)
{
	if (parent_task->task_debug) {
		int flavor;
		mach_msg_type_number_t count;

		if (task_has_64BitAddr(parent_task)) {
			flavor = x86_DEBUG_STATE64;
			count = x86_DEBUG_STATE64_COUNT;
		} else {
			flavor = x86_DEBUG_STATE32;
			count = x86_DEBUG_STATE32_COUNT;
		}

		return machine_thread_set_state(thread, flavor, parent_task->task_debug, count);
	}

	return KERN_SUCCESS;
}

Example #2

File: machine_task.c Project: Prajna/xnu

kern_return_t
machine_task_set_state(
		task_t task, 
		int flavor,
		thread_state_t state, 
		mach_msg_type_number_t state_count)
{
	switch (flavor) {
		case x86_DEBUG_STATE32:
		{
			x86_debug_state32_t *tstate = (x86_debug_state32_t*) state;
			if ((task_has_64BitAddr(task)) || 
					(state_count != x86_DEBUG_STATE32_COUNT) || 
					(!debug_state_is_valid32(tstate))) {
				return KERN_INVALID_ARGUMENT;
			}

			if (task->task_debug == NULL) {
				task->task_debug = zalloc(ids_zone);
			}

			copy_debug_state32(tstate, (x86_debug_state32_t*) task->task_debug, FALSE);
			
			return KERN_SUCCESS;
			break;
		}
		case x86_DEBUG_STATE64:
		{
			x86_debug_state64_t *tstate = (x86_debug_state64_t*) state;

			if ((!task_has_64BitAddr(task)) || 
					(state_count != x86_DEBUG_STATE64_COUNT) || 
					(!debug_state_is_valid64(tstate))) {
				return KERN_INVALID_ARGUMENT;
			}

			if (task->task_debug == NULL) {
				task->task_debug = zalloc(ids_zone);
			}
			
			copy_debug_state64(tstate, (x86_debug_state64_t*) task->task_debug, FALSE);
			
			return KERN_SUCCESS;		
			break;
		}
		case x86_DEBUG_STATE:
		{
			x86_debug_state_t *tstate = (x86_debug_state_t*) state;

			if (state_count != x86_DEBUG_STATE_COUNT) {
				return KERN_INVALID_ARGUMENT;
			}

			if ((tstate->dsh.flavor == x86_DEBUG_STATE32) && 
					(tstate->dsh.count == x86_DEBUG_STATE32_COUNT) &&
					(!task_has_64BitAddr(task)) &&
					debug_state_is_valid32(&tstate->uds.ds32)) {
				
				if (task->task_debug == NULL) {
					task->task_debug = zalloc(ids_zone);
				}

				copy_debug_state32(&tstate->uds.ds32, (x86_debug_state32_t*) task->task_debug, FALSE);
				return KERN_SUCCESS;

			} else if ((tstate->dsh.flavor == x86_DEBUG_STATE64) && 
					(tstate->dsh.count == x86_DEBUG_STATE64_COUNT) &&
					task_has_64BitAddr(task) &&
					debug_state_is_valid64(&tstate->uds.ds64)) {
				
				if (task->task_debug == NULL) {
					task->task_debug = zalloc(ids_zone);
				}

				copy_debug_state64(&tstate->uds.ds64, (x86_debug_state64_t*) task->task_debug, FALSE);
				return KERN_SUCCESS;
			} else {
				return KERN_INVALID_ARGUMENT;
			}

			break;
		}
		default:
		{
			return KERN_INVALID_ARGUMENT;
			break;
		}
	}
}

Example #3

File: machine_task.c Project: Prajna/xnu

kern_return_t 	
machine_task_get_state(task_t task, 
		int flavor, 
		thread_state_t state,
		mach_msg_type_number_t *state_count)
{
	switch (flavor) {
		case x86_DEBUG_STATE32:
		{
			x86_debug_state32_t *tstate = (x86_debug_state32_t*) state;

			if ((task_has_64BitAddr(task)) || (*state_count != x86_DEBUG_STATE32_COUNT)) {
				return KERN_INVALID_ARGUMENT;
			}

			if (task->task_debug == NULL) {
				bzero(state, sizeof(*tstate));		
			} else {
				copy_debug_state32((x86_debug_state32_t*) task->task_debug, tstate, TRUE);
			} 

			return KERN_SUCCESS;
			break;
		}
		case x86_DEBUG_STATE64:
		{
			x86_debug_state64_t *tstate = (x86_debug_state64_t*) state;

			if ((!task_has_64BitAddr(task)) || (*state_count != x86_DEBUG_STATE64_COUNT)) {
				return KERN_INVALID_ARGUMENT;
			}

			if (task->task_debug == NULL) {
				bzero(state, sizeof(*tstate));		
			} else {
				copy_debug_state64((x86_debug_state64_t*) task->task_debug, tstate, TRUE);
			} 

			return KERN_SUCCESS;
			break;
		}
		case x86_DEBUG_STATE:
		{
			x86_debug_state_t   *tstate = (x86_debug_state_t*)state;

			if (*state_count != x86_DEBUG_STATE_COUNT)
				return(KERN_INVALID_ARGUMENT);

			if (task_has_64BitAddr(task)) {
				tstate->dsh.flavor = x86_DEBUG_STATE64;
				tstate->dsh.count  = x86_DEBUG_STATE64_COUNT;

				if (task->task_debug == NULL) {
					bzero(&tstate->uds.ds64, sizeof(tstate->uds.ds64));
				} else {
					copy_debug_state64((x86_debug_state64_t*)task->task_debug, &tstate->uds.ds64, TRUE);
				}
			} else {
				tstate->dsh.flavor = x86_DEBUG_STATE32;
				tstate->dsh.count  = x86_DEBUG_STATE32_COUNT;

				if (task->task_debug == NULL) {
					bzero(&tstate->uds.ds32, sizeof(tstate->uds.ds32));
				} else {
					copy_debug_state32((x86_debug_state32_t*)task->task_debug, &tstate->uds.ds32, TRUE);
				}
			}
			
			return KERN_SUCCESS;
			break;
		}
		default:
		{
			return KERN_INVALID_ARGUMENT;
			break;
		}
	}
}

Example #4

File: chud_thread.c Project: JackieXie168/xnu

__private_extern__ boolean_t
chudxnu_is_64bit_task(task_t task)
{
	return (task_has_64BitAddr(task));
}