I would like to see the CopyMem implementation. Which source file I should
look for it. I see some implementation in commonlib.c in basetools but I
assume it wont be taken from there and instead will be used from boot
services table. So how can I know about the implementation. The reason I
want to look into that is, in reallocatepool, there is a possibility that
the CopyMem can be called with 0 length. If CopyMem implementation is
similar to what is in commonlib.c (as mentioned below), the 0 will be
decremented and due to the type of length (UINTN) there might be some
memory corruption.
Please correct if my understanding is wrong.
VOID
PeiCopyMem (
IN VOID *Destination,
IN VOID *Source,
IN UINTN Length
)
*/*++*
*Routine Description:*
* Copy Length bytes from Source to Destination.*
*Arguments:*
* Destination - Target of copy*
* Source - Place to copy from*
* Length - Number of bytes to copy*
*Returns:*
* None*
*--*/*
{
CHAR8 *Destination8;
CHAR8 *Source8;
Destination8 = Destination;
Source8 = Source;
*while* (Length--) {
*(Destination8++) = *(Source8++);
}
}
Thanks
Sathya
PS: My E-mail ID changed from [email protected] to
[email protected]. Please update your address book.
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