[PATCH v2 6/7] tools: add genguid tool

Simon Glass sjg at chromium.org
Wed May 29 21:45:34 CEST 2024


Hi Caleb,

On Wed, 29 May 2024 at 13:02, Caleb Connolly <caleb.connolly at linaro.org> wrote:
>
> Hi Simon,
>
> On 29/05/2024 18:30, Simon Glass wrote:
> > Hi Caleb,
> >
> > On Wed, 29 May 2024 at 08:49, Caleb Connolly <caleb.connolly at linaro.org> wrote:
> >>
> >> Add a tool that can generate GUIDs that match those generated internally
> >> by U-Boot for capsule update fw_images.
> >>
> >> Dynamic UUIDs in U-Boot work by taking a namespace UUID and hashing it
> >> with the board model, compatible, and fw_image name.
> >>
> >> This tool accepts the same inputs and will produce the same GUID as
> >> U-Boot would at runtime.
> >>
> >> Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
> >> ---
> >>   tools/Makefile  |   3 ++
> >>   tools/genguid.c | 154 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> >>   2 files changed, 157 insertions(+)
> >
> > Where is this tool used? Can you add a man page and test?
>
> It currently doesn't have any users, it just allows for pre-generating
> GUIDs ahead of time for a given board. It might be hooked up to vendor
> tooling or some usecase like that.
>
> I've somehow escaped learning Groff before now heh, I can give it a go
> and write a test.

OK (just copy bits of mkimage.1 :-)

Re the test, would this be something that binman would use? If so you
could put a test there.

Regards,
Simon


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