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qom: Assert instance size in object_initialize_with_type()

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This catches objects initializing beyond allocated memory, e.g.,
when subtypes get extended with instance state of their own.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Andreas Färber 2013-08-30 18:28:37 +02:00
parent 213f0c4f61
commit 5b9237f67c
2 changed files with 6 additions and 4 deletions
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3
include/qom/object.h
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@ -586,13 +586,14 @@ Object *object_new_with_type(Type type);
/**
* object_initialize_with_type:
* @data: A pointer to the memory to be used for the object.
* @size: The maximum size available at @data for the object.
* @type: The type of the object to instantiate.
*
* This function will initialize an object. The memory for the object should
* have already been allocated. The returned object has a reference count of 1,
* and will be finalized when the last reference is dropped.
*/
void object_initialize_with_type(void *data, Type type);
void object_initialize_with_type(void *data, size_t size, Type type);
/**
* object_initialize: