Re: [Xenomai-help] Viper board (ARM XScale) problems with Xenomai-2.4.10

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

Ivan Kalatchev wrote:
>> Ok, what version of gcc/binutils ? You can workaround this build
>> issue, by using the generic implementation of xnarch_nodiv_llimd.
>> In incldude/asm-arm/arith.h, replace
>> 
>> #if __LINUX_ARM_ARCH >= 4 with #if __LINUX_ARM_ARCH >= 4 &&
>> __GNUC__ >= 4
>> 
> 
> 
> my gcc is 3.3.4
> 
> I changed arith.h as you suggested, and it compiled, but then linker
> couldn't find rthal_arm_nodiv_ullimd definition, as there is no  code
> for it for __GNUC__ < 4.

Ok, you need to change the other #ifdef a bit further.

> 
> 
>> Please try what I told you: replacing handle_irq with 
>> __ipipe_handle_irq
> 
> I need CPLD MUX interrupts (which are ISA interrupts in my case) to
> be real-time. How that should be done then - request real-time CPLD
> interrupt with empty handler and request each ISA interrupt as
> real-time handler as well?

No, just requet the ISA interrupt you want to use. Do not touch the mux
interrupts parent. This should work transparently.

-- 
Gilles Chanteperdrix, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com