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
Sorry, I neither see the need nor feel comfortable about the impact / side effects of such an extension. > - core skin fdtable If we can find a minimally invasive first version (see other thread) that can be tested and stabilized within very few weeks, and later changes will definitely only touch core code, I might be able to live with this for 2.5. Jan
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