[Buildroot] [PATCH v2 2/2] configs/qemu_riscv32_virt: Update to 5.1 kernel

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

On Thu, 20 Jun 2019 11:26:06 -0700
Alistair Francis <alistair23@gmail.com> wrote:

> Yep, the problem is that the glibc port isn't upstream so it isn't
> stable. The kernel has progressed ahead of the latest glibc upstrem
> submission (what we are using in buildroot). To fix this we are
> reverting the patch from the kernel. Hopefully in the future we can
> update glibc and then remove the patch.

For riscv32 we are *not* using upstream glibc:

else ifeq ($(BR2_RISCV_32),y)
GLIBC_VERSION = 06983fe52cfe8e4779035c27e8cc5d2caab31531
GLIBC_SITE = $(call github,riscv,riscv-glibc,$(GLIBC_VERSION))

so if this glibc fork has been updated to cope with the recent kernel
change, I think we should update glibc instead of reverting the patch
from the kernel.

This would also address my comment that building a riscv32
configuration doesn't work out of the box. Of course, we would have to
disallow selecting kernel headers < 5.1 on riscv32, but that's
perfectly possible.

Best regards,

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