Xen users - Jan 2013 - [Beginners question]- Compilation error while trying user program from domU

Hi all,

My aim is to invoke hypercalls from programs inside guest domains. So in
this regard I wrote a sample program as below that invokes a
function(xc_domain_getinfo) declared in xenctrl.h. 

*Sample Program:*
#include<stdio.h>
#include<xenctrl.h>
 int main()
{
 printf("Attempt to invoke hypercall!!!\n");
 int handle,rc;
 xc_dominfo_t *info;
 handle = xc_interface_open();
 printf(Äcquired handle :%d\n",handle);
 rc = xc_domain_getinfo(handle,3,1,info);
 printf(" The returned value is :%d\n",rc);
 return 0;
}

I linked xenctrl library from dom0, but I am getting compilation error
saying *xenctrl.h: No such file or directory*. Then as per the error message
I tried copying(by downloading source) required header files as and when it
says missing header files name on consecutive compilation. But I ended up
with path conflicts and couldn't succeed in compiling.

*My doubts:*
* Do I need to copy header files manually into guest domain? - I tried
copying header files required as per compilation error msgs but I ended up
with conflicts.
* Any pointers to detailed guide to invoke hypercalls from guest domains??


Thanks,
Lakshman




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On Thu, 2013-01-03 at 06:02 +0000, Lakshman Jayaraju
wrote:
> * Do I need to copy header files manually into guest domain? - I tried
> copying header files required as per compilation error msgs but I ended up
> with conflicts.
You should ideally just use your distros provided xen library packages.

If that isn''t an option then compile and install the xen tools in the
guest or compile your application statically in dom0 and copy that over.
Possibly you might get away with just the tools/libxc subdirectory.

Ian.

Thanks Ian, 
It works!!!



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