[U-Boot] [PATCH] punt unused clean/distclean targets

[Marek Vasut]

On Monday, September 19, 2011 06:59:52 AM Mike Frysinger wrote:
> On Sunday, September 18, 2011 09:08:35 Graeme Russ wrote:
> > On 18/09/11 18:22, Mike Frysinger wrote:
> > > On Sunday, September 18, 2011 03:26:38 Wolfgang Denk wrote:
> > >> Mike Frysinger wrote:
> > >>> The top level Makefile does not do any recursion into subdirs when
> > >>> cleaning, so these clean/distclean targets in random arch/board dirs
> > >>> never get used.  Punt them all.
> > >> 
> > >> I think this is the wrong approach.  Would it not be better to get rid
> > >> of the 60 lines of clean/clobber target in the top level Makefile,
> > >> including it's brute force methods of "find ... | xargs rm -f" and
> > >> actually remove the files from the Makefiles in the respective
> > >> directories instead?
> > >> 
> > >> This would for example allow that a board maintainer can fix the clean
> > >> / clobber rules for his code without having to edit the top level
> > >> Makefile.
> > > 
> > > yes & no.  i think we should have 1 clean/distclean target, but also
> > > have a way for board maintainers to inject their own custom clean
> > > files. preferably via a .mk file in their board subdir.  this is
> > > moving in the direction of non- recursive make like the kernel does --
> > > the top level would source all the subfiles to figure out the master
> > > clean list.
> > > 
> > > however, the current build system has one advantage which i think we
> > > should retain in the short term: `make distclean` always cleans out the
> > > targets regardless of the current config.  for example, if you do `make
> > > bf537-stamp` followed by `make harmony` followed by `make distclean`,
> > > Blackfin-specific objects will still get cleaned out.
> > 
> > Can we not have make distclean/mrproper traverse ALL arch/SoC/board
> > directories and call their distclean/mrproper? Or have distclean/mrproper
> > read the .mk file for all arch/SoC/board directories?
> 
> if it wasn't clear in my last e-mail, i want to move in the direction of
> .mk files that the top level would include them and thus all the specific
> cruft would be kept there
> 
> after all, the list of things to clean should be obvious once we have more
> kbuild style system: if it's listed as a file to build, then it should get
> cleaned.

And who's porting the kbuild style system to uboot, is there something like that 
going on already ?

Cheers
> -mike