Peter Samuelson wrote: > > > > > [...]CONFIG_BLK_DEV_IDESCSI[...] > > > That one example is more than enough to convince me *not* to try > changing the "ignore empty deps" rule for 2.4. 2.5 is a different > matter, though..
Ah, good. > This is like the Stanford checker stuff. These are bugs. You have > the means to find them automatically, but not the time or desire to > fix them. Actually I have got the desire to fix them, what I lack is the ability to get patches into the kernel that are too non-trivial to go through Rusty. > Post a list and perhaps others will pitch in. Something > like > > drivers/ide/Config.in:17: In dep_tristate CONFIG_BLK_DEV_IDESCSI: > drivers/ide/Config.in:17: CONFIG_SCSI not defined for i386, ppc, ... Ok, but perhaps it's not clear how many problems there are. The full log file from a gcml2 run on 2.5.29 is 573 KiB. Here's a summary: 977 missing-experimental-tag 113 spurious-experimental-tag 145 variant-experimental-tag 30 inconsistent-experimental-tag 13 missing-obsolete-tag 41 spurious-obsolete-tag 25 variant-obsolete-tag 5 spurious-dependencies 187 nonliteral-define 28 unset-statement (ignore these) 25 different-banner 61 different-parent 36 overlapping-definitions 1 primitive-in-root 310 undeclared-symbol 73 forward-compared-to-n 287 forward-reference 1093 forward-dependancy 1 symbol-like-literal 103 constant-symbol-dependency 8 different-compound-type 3562 total These numbers are aggregates over 17 arches, so you need to divide by a number between 1 and 17. Also some of these have been fixed in 2.5.30. I can post the full list if people want, but it would be a bit overwhelming. > In this case the fix would be to move CONFIG_BLK_DEV_IDESCSI to the > SCSI subsystem, where in my opinion it belonged anyway. Ok then. > This would break down if there are any actual cycles - things which > can't logically be moved to a place after the definitions of the > facilities on which they depend. I'm not able to detect anything like that. > That we have to worry about this at all is an artifact of using a > procedural langauge, rather than a declarative language like Prolog or > CML2. Actually config language isn't really procedural, pseudo-procedural would be more like it. > I *really* don't want to go *there*, though. (: Yep. > > And "" != "n" in other contexts, like if [];then statements. > > That is true. But that should not affect the dep_* logic, should it? Correct, I'm just pointing out that using orthogonality arguments with the config language is not going to get you anywhere useful. > The point here is that people who aren't hip-deep in config language > code don't think about them being separate. Ergo bugs. Agreed. > I've been thinking hard about a new sort of 'if' statement that > doesn't look like a test command. Interesting, I'd like to hear more. My favourite idea is a different form of choice which worked more like a menu, so you could intersperse conditionals with the choice items. This would help with the several places in CML1 were the same choice is mostly-duplicated in different conditionals, e.g. 'Kernel page size' in arch/ia64/config.in. ESR worked out a sensible set of semantics for how this should work. > (Yes, it's my mission to eventually > get rid of the '$'s in config language. I think it can be done, > piecemeal, over a long period of time. Sounds good to me. > This is if we don't end up > adopting a whole new language like CML2 or Roman's stuff.) Or a new parser & frontends for the existing language. I'm not convinced that a complete new language will ever succeed after the CML2 debacle, machine translated or not. This is why I gave up the idea of automatically converting CML1 to CML2. Greg. -- the price of civilisation today is a courageous willingness to prevail, with force, if necessary, against whatever vicious and uncomprehending enemies try to strike it down. - Roger Sandall, The Age, 28Sep2001. ------------------------------------------------------- This sf.net email is sponsored by: Dice - The leading online job board for high-tech professionals. Search and apply for tech jobs today! http://seeker.dice.com/seeker.epl?rel_code=31 _______________________________________________ kbuild-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/kbuild-devel
