L4Linux Driver + L4_ipc

ba_f ba_f at rbg.informatik.tu-darmstadt.de
Fri Mar 18 13:34:12 CET 2016


Am 2016-02-03 18:40, schrieb ba_f:
> I want the L4Linux driver to communicate over l4_ipc to another 
> L4-Task.
> 
> Well, there's a compiler error:
> 
>   Building modules, stage 2.
>   MODPOST 1 modules
> ERROR: "l4_utcb_wrap" [drivers/char/myDrv.ko] undefined!
> 
> 
> This appears, when trying to write in mr[].
> 
>     l4_msg_regs_t* mregs = l4_utcb_mr_u(utcb);
>     mregs->mr[0] = 23; // if i comment this line, build works.


Ok, this seems to be a Bug in the old l4re-snapshot-2014022818.

Building the L4Linux module works on the current snapshot, though.



Damn, I don't want to migrate...


Greets,

ba_f



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