diff options
Diffstat (limited to 'include/hw/qdev-core.h')
| -rw-r--r-- | include/hw/qdev-core.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index 5be9844412..cbce3cf0b4 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -940,9 +940,26 @@ char *qdev_get_own_fw_dev_path_from_handler(BusState *bus, DeviceState *dev); * This will add a set of properties to the object. It will fault if * you attempt to add an existing property defined by a parent class. * To modify an inherited property you need to use???? + * + * Validate that @props has at least one Property plus the terminator. + * Validate that the array is terminated at compile-time (with -O2), + * which requires the array to be const. */ void device_class_set_props(DeviceClass *dc, const Property *props); +#define device_class_set_props(dc, props) \ + do { \ + QEMU_BUILD_BUG_ON(sizeof(props) != sizeof(const Property *) && \ + sizeof(props) < 2 * sizeof(Property)); \ + if (sizeof(props) != sizeof(const Property *)) { \ + size_t props_count_ = sizeof(props) / sizeof(Property) - 1; \ + if ((props)[props_count_].name != NULL) { \ + qemu_build_not_reached(); \ + } \ + } \ + (device_class_set_props)((dc), (props)); \ + } while (0) + /** * device_class_set_parent_realize() - set up for chaining realize fns * @dc: The device class |