Re: [Xen-devel] Re: [PATCH 2.6.12.6-xen] sysfs attributes for xen

["Mike D. Day" <ncmike@xxxxxxxxxx>]

Dave Hansen wrote:
> In the final version, there will be available Xen headers, and the patch
> won't need the open-coded 1024?
Good question, I need some advice. The Xen hcall headers get soft-linked into 
every paravirtualized OS tree: linux, bsd, solaris, etc. In linux right now the 
xen version.h shows up as  /include/asm-xen/version.h.

This file uses typedefs for every important parameter. For example, typedef char [1024] xen_capabilities_info_t;. 

But as Greg says TYPEDEFS ARE EVIL. 

Last resort would be to use the funky gcc #include_next to override the xen hcall headers with a linux-specific hcall headers. But I don't know if that would be cool with lkml either. 

So, advice would be welcome :). 

thanks, 

Mike


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