On Sun, Jan 30, 2005 at 06:34:48PM +0100, Sam Ravnborg wrote:
> First trying to understand exactly what you want.
> 
> So you expect kerntypes-y := file.o
> to be present in one or a few places outside arch/
> And then in one or a few files within arch/ the arch
> specific types are brought in with kerntypes-y := archfile.o
> 
> And kbuild shall link the resuting files to a single kerntypes.o file
> to be located in the root of the kernel output dir.

Currenly it's called Kerntypes, which would make sense to be kept, but
else yes.

> There are a few (solveable) issue with this.
> - kbuild needs to keep track of all kerntypes.y files. This is done for
>   the kernel with a built-in.o file that links all .o files for a given
>   dir and subdirs. In this was the final link is just a few built-in.o
>   files (+ a bitmore).
> - Addind kerntypes-y would make kbuild infrastructure even more scary
>   than today. There most be some very good reasons to add more
>   complexity to the current implmentation.
> 
> Maybe a simpler solution could be deployed:
> One file for all of the kernel located in kernel/kerntypes.o
> Then the arch makefile can link in their relevant files
> in a post processing step like when we build bzImage and the like.
> This requires much less support in common kbuild files.

That could work aswell.  Note that e.g. for s390 most of the additional
bites are for drivers/s390/ datastructures which would make sense to
be done with a drivers/s390/kerntypes.c file, but if it's really that
bad let's go for your scheme.


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