[Buildroot] Setting Defaults for RISCV64 Architecture

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

Hello,

On Tue, 14 Aug 2018 13:35:37 +0100, Mark Corbin wrote:

> > For the Linux kernel itself, there isn't really a problem, as we allow
> > the user to select the Linux kernel version/source with lots of freedom
> > (arbitrary official version from kernel.org, arbitrary commit/tag from
> > a Git repository, arbitrary tarball, etc.).  
> I know that the options are pretty flexible,? but is there a good way to
> preselect the correct version for riscv64? At the moment the default is
> 'Latest version (4.17)' and the user would have to go and reconfigure
> this by hand to point at the custom git repo.

Nope, for the Linux kernel source code, I don't think we want to add
architecture-specific default versions. Just leave it to the user to
know which version to build. It's already something a user has to do on
other architectures as well: the vanilla v4.17 is not always the right
choice for a given HW platform.

> > However, there is a problem for the kernel headers. If the recently
> > released 4.18 kernel still doesn't have what's need for RISCV64, then I
> > guess we'll have to temporarily add a special Linux kernel headers
> > version in package/linux-headers/Config.in.host for RISCV64.  
> Is this for building the toolchain?

Yes, this is for building the toolchain.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com