Re: Re: Is sizeof(void *) ever != sizeof(unsigned long)?

Re: Re: Is sizeof(void *) ever != sizeof(unsigned long)?

[Fawad Lateef]

--- Robert Love wrote:

> But that is not true, actually.  Nothing in C or
> anywhere else says that
> the long type has to be the size of a GPR.
> Specifically in Linux, the
> SPARC64 user-space ABI has a 32-bit long type
> despite being a 64-bit
> architecture--in other words, SPARC64 has a 32-bit
> user-space even
> though it is a 64-bit architecture.
> 
> In the kernel, however, we have the ABI such that
> both pointers and
> longs are the same size, generally the size of the
> GPR.  But there is a
> difference between physical requirements, C
> requirements, the user-space
> ABI, and the kernel ABI.
> 
> By definition (the Linux kernel ABI) they _are_
> equal in size to each
> other.
> 


Thanks for this explanation, now I got clear view abt
that.


Fawad Lateef

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