Re: ipipe 5.4.107 / 5.4.93 build issues on arm32

[Thomas Petazzoni <thomas.petazzoni@bootlin.com>]

On Wed, 14 Apr 2021 14:41:29 -0400
Greg Gallagher <greg@embeddedgreg.com> wrote:

> Ipipe 5.4 and xenomai 3.1 are compatible, this is my mistake, I’ll fix up
> and generate a new patch once the latency fix is done.
> FWIW, building straight from the ipipe-arm repo on the ipipe/5.4.y branch
> has been working for me.

I'm afraid the HEAD of ipipe/5.4.y as of commit
ffaf274ca4cc117c2dc3f9b2ee8ea6218b50995a doesn't build for me. I'm on
this commit + I have prepared the kernel using Xenomai 3.1
./scripts/prepare-kernel.sh --linux=/path/to/kernel + kernel configured
with sama5_defconfig.

And same build failure:

In file included from kernel/cpu.c:23:0:
./include/linux/stop_machine.h: In function ‘stop_machine_cpuslocked’:
./include/linux/stop_machine.h:150:2: error: implicit declaration of function ‘hard_irq_enable’; did you mean ‘hard_irq_disable’? [-Werror=implicit-function-declaration]
  hard_irq_enable();
  ^~~~~~~~~~~~~~~
  hard_irq_disable

Best regards,

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com