[Xen-devel] Re: mini-os: gnttab.c does not compile

[Grzegorz Milos <gm281@xxxxxxxxx>]

Hi there
Thanks for the reports guys.

I'm very busy for the next 2 days, but I will have a look afterwards.  
My guess is that public xen interfaces changed, which causes our  
grant table implementation to fail to compile.
If you remove gnttab.c (together with the init call from kernel.c)  
then Mini-OS should work just fine.
Cheers
Gregor

> Hello,
>
> sorry to bother you with this: while trying to compile mini-os from
> xen-unstable.hg, I noticed that compilation failed like this:
>
>
> gcc -fno-builtin -Wall -Werror -Wredundant-decls -Wno-format
> -Wstrict-prototypes -Wnested-externs -Wpointer-arith -Winline -m32
> -march=i686 -g -Iinclude  -Iinclude/x86      -Iinclude/x86/x86_32 - 
> c gnttab.c
> -o gnttab.o
> gnttab.c: In Funktion »init_gnttab«:
> gnttab.c:165: error: request for member `p' in something not a  
> structure or
> union
> make: *** [gnttab.o] Error 1
>
> Looking at the source code, I'm not surprised that this happens,  
> and I suspect
> that the file of the same name (gnttab.c) found in
> linux-2.6-xen-sparse/drivers/xen/core will also fail to compile  
> (though I
> have not checked this).
>
> It seems that the grant-table functions are currently in a non- 
> functional
> state and that mini-os does not use these functions anyway (except  
> for a call
> to the init function): After commenting out this call, I was able  
> to build
> the mini-os binary.
>
> Is there a particular reason for this? Can I expect the mini-os to  
> work after
> removing gnttab.c?
>
>
> Kind Regards
>
> Rob

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