Hi Simon,
On Thu, Jul 5, 2018 at 5:55 PM Simon Horman <horms@xxxxxxxxxxxx> wrote:
> On Wed, Jul 04, 2018 at 01:43:33PM +0200, Geert Uytterhoeven wrote:
> > This allows to derive the kernel flavor from the kernel version at
> > runtime.
>
> For my edification could you expand on what this is used for?
With this, the kernel version (as printed during boot, and returned by
e.g. "uname -r") will be something like
4.18.0-rc3-shmobile-02146-gd2f8e14acc47b8ea
instead of
dmesg-4.18.0-rc3
which makes it easy to differentiate them from
4.18.0-rc3-koelsch-02146-gd2f8e14acc47b8ea
4.17.0-rc1-rcar2-initrd-00547-g19c9f87b5c449c23-dirty
which are built from my personal configs for Koelsch resp. R-Car Gen2
with initrd.
> > Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> > --- a/arch/arm/configs/shmobile_defconfig
> > +++ b/arch/arm/configs/shmobile_defconfig
> > @@ -1,3 +1,4 @@
> > +CONFIG_LOCALVERSION="-shmobile"
We already have
CONFIG_LOCALVERSION="-arm64-renesas"
in arch/arm64/configs/renesas_defconfig, to differentiate kernels built
from that config with kernels built from arm64 defconfig (which set it to
"-arm64" in my local tree).
All of this makes it easy to keep e.g. a collection of boot logs using
"dmesg > dmesg-$(uname -r)", and compare them.
Thanks!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
