On Fri, 2009-10-02 at 18:21 +0200, Gilles Chanteperdrix wrote: > Philippe Gerum wrote: > > On Tue, 2009-09-29 at 19:31 +0200, Gilles Chanteperdrix wrote: > >> Hi guys, > >> > >> full of energy after this tremendous first XUM, > > > > Agreed, thanks to the DENX folks for having thought of it in the first > > place, and organized it nicely. > > > >> I would like to start a > >> discussion about what people would like to see in the 2.5 branch. > >> > > > > Jan has described the situation quite accurately already, regarding the > > trade-off between getting everything we want into 2.5 so that no 2.6 is > > required, and releasing the too long-awaited 2.5 asap. > > > > As you mentioned already, the key issue is ABI stability. > > Any change we want before 3.0 that breaks the ABI should preferably go > > to 2.5, so that we don't end up maintaining 2.5.x, 2.6.x and 3.x. At any > > rate, we could not afford the latter anyway. This is a different matter > > than API issues; we already allowed API extensions during a stable > > cycle, provided they do not break existing application code (except in > > emergency cases), so I see no problem in pushing a few more services to > > 2.5.1 and beyond, provided that condition is met. > > > >> Here is a first list, please feel free to criticize it: > >> - signals in primary domain (something that we almost forgot) > > > > Yes, this one must be in. At least, we should break the ABI one more > > time for this before releasing 2.5.0. This item has priority #1 for > > me, since providing that infrastructure will enable a series of > > additional services to be implemented properly. In fact, this is more a > > matter of allowing nucleus callouts to user-space than anything else; > > POSIX RT signals in full primary mode being an application of them. > > Ok. So, if we add the core skin fdtable, this leaves us with two items: > - signals in primary domain > - core skin fdtable >
Ack. Add the following I-pipe stuff as well: - nios2 design upgrade. Those FPGA thingies require a bit of support to be included into the soft-core in order to run a real-time system, like a high precision timer and some stable monotonic clock source. Patrice Kadionik (the guy who lives there: http://uuu.enseirb.fr/~kadionik/) sent me an update for the FPGA design I used to do the initial port over nios2. This is mostly a matter of a couple of hours to fix and validate the I-pipe core accordingly, though. - powerpc32 updates for 2.6.30. Mainly to merge the once experimental bits that prevent most alignment faults from triggering a secondary mode switch. Andreas told me this works like a charm on 83xx, and I did not see any issue on 52xx, 85xx or 86xx either. - probably blackfin updates. I need to have a closer look, but I'm afraid I will have to resync with mainline before 2.5.0 is out. Blackfin folks never sleep it seems. - x86* updates to issue patches for the 2.6.30-stable and 2.6.31-stable series. You may have a few ARM patches brewing as well? -- Philippe. _______________________________________________ Xenomai-core mailing list [email protected] https://mail.gna.org/listinfo/xenomai-core
