Compilation for xenserver 6.5

[stipmonster]

HI i am trying to compile the vrouter.ko for xenserver 6.5. I have downloaded the kernel sources iso from the xenserver website and used the
scons --kernel-dir=~/3.10.0+2-x86_64/ --system-header-path=~/3.10.0+2-x86_64/ vrouter
command to compile it
when i try to load it the following error shows in demise
vrouter: Unknown symbol __fentry__ (err 0)

I tried multiple versions all give the same error. Any idea if this is a bug or am i doing something wrong?

[anandhk-juniper]

This, typically, means that the kernel that you are compiling against is not the same as the kernel that you are running. I can find fentry in my 'less /proc/kallsyms' output indicating that the symbol is present in my kernel.

[stipmonster]

That is indeed true is there a way to make it work by compiling it on a machine that runs a different kernel, but having the kernel sources with all the correct symbol maps etc.