Re: netbsd-10, merging device-streams (xstreamtodev, rdbinfo)

[Roc Vallès <vallesroc%gmail.com@localhost>]

Hi,

The cut issue didn't seem right to me, so I looked at it again. Cut is
not the culprit, both cuts behave as expected.

Sed is the actual culprit, Expression sed -e 's/[[:blank:]]\+/ /g'
seems to at least match something if the \+ is removed from the
expression, thus it doesn't like the \+ to match one or more.

So I did some digging, and GNU is the odd one, whereas other
implementations that follow POSIX.2 do not do this. I understand it
isn't in the spec in the first place.

Roc

On Mon, 20 Mar 2023 at 14:40, Roc Vallès <vallesroc%gmail.com@localhost> wrote:
>
> Hi,
>
> I went ahead and tried building the toolchain from
> https://github.com/bebbo/amiga-gcc with netbsd-9.3, amd64.
>
> The GNU Makefile does something like this (de-makified):
> gcc .repos | sed -e 's/[[:blank:]]\+/ /g' |cut -d' ' -f2
>
> To extract fields from that file, which is copied there from
> default-repos earlier in the Makefile.
>
> This file happens to mix spaces and tabs, and use multiple spaces in a
> row. GNU cut behaviour is different from netbsd, as GNU seems to treat
> multiple spaces as one space, and tabs as one space as well.
>
> After editing default-repos to deal with this, it can start building.
> It'll get as far as this:
>
> /home/rvalles/work/amiga-gcc/projects/binutils/bfd/amigaos.c:4031:37:
> warning: unused parameter 'ht' [-Wunused-parameter]
>  amiga_purge (struct bfd_hash_table *ht, asection * sec, bool print)
>                                      ^~
>   CC       amigaoslink.lo
>   CC       aout-amiga.lo
> /home/rvalles/work/amiga-gcc/projects/binutils/bfd/aout-amiga.c:51:8:
> error: unknown type name 'PTR'
>  extern PTR alloca PARAMS ((size_t));
>         ^~~
> /home/rvalles/work/amiga-gcc/projects/binutils/bfd/aout-amiga.c:51:12:
> error: conflicting types for 'alloca'
>  extern PTR alloca PARAMS ((size_t));
>             ^~~~~~
> In file included from
> /home/rvalles/work/amiga-gcc/projects/binutils/bfd/sysdep.h:40:0,
>                  from
> /home/rvalles/work/amiga-gcc/projects/binutils/bfd/aout-amiga.c:21:
> /usr/include/stdlib.h:268:7: note: previous declaration of 'alloca' was here
>  void *alloca(size_t);
>        ^~~~~~
> gmake[4]: *** [Makefile:1761: aout-amiga.lo] Error 1
> make binutils bfd...failed
>
> This is likely to do with our host gcc being older than expected.
>
> Roc
>
> On Mon, 20 Mar 2023 at 12:21, Roc Vallès <vallesroc%gmail.com@localhost> wrote:
> >
> > Hi David,
> >
> > Sent twice because I forgot to reply to all. My bad.
> >
> > On Sun, 19 Mar 2023 at 23:45, David Brownlee <abs%netbsd.org@localhost> wrote:
> > > Does that seem reasonable?
> >
> > Yes. I imagine the reason only rdbinfo and xstreamtodev binaries were
> > included before has to do with the install guide referencing exactly
> > these two.
> >
> > > On a related note - could the README.md be updated to include a brief
> > > note on each executable and what it does, plus a link back to your
> > > github?
> >
> > This is no issue. I'll get this done in the repo shortly. Then it
> > should be OK to just copy it over.
> >
> > > - Would anyone be interested in putting together a pkgsrc entry for
> > > the tools to build device-streams? It would be nice to be able to
> > > rebuild from any pkgsrc supporting box
> >
> > It would be nice to have. I do not know how hard this would be.
> >
> > Trying to run bebbo's script for preparing crossdev toolchain on
> > netbsd would be a starting point. (I have only ever used Linux for
> > AmigaOS crossdev)
> >
> > I might give it a try soon, on my previous x86 box (core2quad), where
> > I have my x86 netbsd setup (which is 9.3 or a 10 snapshot, I haven't
> > turned that machine on for months now).
> >
> >  Expectation is for it to blow up but it needs to be attempted regardless.
> >
> > > - Would you be interested in dual licencing your changes under GPL and
> > > BSD (I would need to Christian E. Hopps also, but wanted to ask here
> > > first). I'm toying with the idea of adding a full copy of the actual
> > > source properly in the NetBSD tree and it's generally encouraged to
> > > have things available as BSD licence. (Note a "No" answer will result
> > > in an "OK", rather than waving of hands and decrying that the world is
> > > ending :)
> >
> > I am OK with GPL+BSD licensing my changes.
> >
> > > Once again, thanks for the work!
> >
> > Thank you again for looking into this.
> >
> > - Roc