[PATCH] binman: Support updating section contents

[Simon Glass]

Hi Quentin,

On Mon, 6 Feb 2023 at 03:26, Quentin Schulz
<quentin.schulz at theobroma-systems.com> wrote:
>
> Hi Simon,
>
> On 2/4/23 23:24, Simon Glass wrote:
> > Implement this feature since it is useful for updating FITs within an
> > image.
> >
> > Signed-off-by: Simon Glass <sjg at chromium.org>
> > ---
> >
> >   tools/binman/binman.rst       | 16 ++++++++++
> >   tools/binman/etype/section.py | 28 ++++++++++++-----
> >   tools/binman/ftest.py         | 58 ++++++++++++++++++++++++++++++++---
> >   3 files changed, 90 insertions(+), 12 deletions(-)
> >
> > diff --git a/tools/binman/binman.rst b/tools/binman/binman.rst
> > index 03a99a19bc6..ece2c05128a 100644
> > --- a/tools/binman/binman.rst
> > +++ b/tools/binman/binman.rst
> > @@ -1327,6 +1327,22 @@ You can also replace just a selection of entries::
> >
> >       $ binman replace -i image.bin "*u-boot*" -I indir
> >
> > +It is possible to replace whole sections as well, but in that case any
> > +information about entries within the section may become outdated. This is
> > +because Binman cannot know whether things have moved around or resized within
> > +the section, once you have updated its data.
> > +
> > +Technical note: With 'allow-repack', Binman writes information about the
> > +original offset and size properties of each entry, if any were specified, in
> > +the 'orig-offset' and 'orig-size' properties. This allows Binman to distinguish
> > +between an entry which ended up being packed at an offset (or assigned a size)
> > +and an entry which had a particular offset / size requested in the Binman
> > +configuration. Where are particular offset / size was requested, this is treated
>
> s/Where are/Where a/

Sadly I forgot about this. Will fix in the next version/

Regards,
Simon