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Re: [commit] new observer.[hc] files
Daniel Jacobowitz <drow at mvista dot com> writes:
|> Is this extra indirection really necessary? Because I'm 99% sure it
|> won't work on several 64-bit platforms. Function pointers and data
|> pointers are not required to have the same size; on IA-64 I believe
|> that a function pointer is 128 bits and a data pointer is 64 bits.
Function pointer are still 64 bits on ia64 (and ppc64). They do not point
to the code itself, but to a descriptor which contains the actual code
pointer and the gp value. But I agree that mixing function pointer and
object pointers should be avoided.
Andreas.
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Andreas Schwab, SuSE Labs, schwab at suse dot de
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