Re: wip-full-source-bootstrap: from a 357-byte `hex0' to 'hello'

[Efraim Flashner <efraim@flashner.co.il>]

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On Wed, Jan 20, 2021 at 03:19:49PM -0500, Timothy Sample wrote:
> Hi janneke,
> 
> Jan Nieuwenhuizen <janneke@gnu.org> writes:
> 
> > I have reset Guix' wip-full-source-bootstrap branch with a first working
> > implementation of the, well, "Full Source Bootstrap" for x86-linux (and
> > x86_64-linux).  This bootstrap is rooted in the 357-byte hex0-seed from
> > the Stage0 project (https://savannah.gnu.org/projects/stage0).
> 
> The dream is alive!  Congratulations on this big leap forward!
> 
> > When you look at the bottom of the graph (see attached), you will notice
> > "%bootstrap-guile": the driver that we use for the Guix build and also
> > for "bootar", "gash", and "gash-utils".  This "%bootstrap-guile" is not
> > used as a seed in anything that is built, "%bootstrap-guile", "bootar",
> > "gash", and "gash-utils" could be replaced with any other driver.
> 
> I never mentioned it, but a few months ago I took a little look at
> porting Gash & friends to Mes.  The big issue that I ran into is that
> Mes doesn’t really have a module system.  My plan was to build up Mes
> modules and strip down Gash requirements until they met in the middle.
> Sometime (probably not worth derailing this thread right now) we should
> discuss what needs to be done for Mes modules.  (It looked like
> something I could do with a little guidance on the design.)
> 
> > XXX TODO:
> >    * wip-full-source-bootstrap
> >      [...]
> >    * wip-arm-bootstrap
> >      - finish; currently stuck on gawk-mesboot0
> >      [...]
> 
> It looks like you’ve made a lot of progress on this already (judging by
> the rest of this thread).  However, if it helps, the current Gash-Utils
> awk could _probably_ be used to skip most (all?) of the old versions of
> Gawk.
> 
> Sorry I can’t be more helpful ATM.  I appreciate the work you do to keep
> this project rolling!
> 

Using this post as inspiration I replaced diffutils-mesboot with
gash-utils-boot. diffutils-mesboot provided cmp and diff, both of which
are available in gash-utils. Unfortunately sed from gash-utils-boot
didn't seem to work so I wasn't able to remove that.

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Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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