On Sat, Mar 05, 2005 at 12:09:29AM -0500, Kai Germaschewski wrote:
> On Fri, 4 Mar 2005, Adrian Bunk wrote:
>
> > > [...] So ld looks into the lib .a archive, determines that none of
> > > the symbols in that object file are needed to resolve a reference and
> > > drops the entire .o file.
>
> > Silly question:
> > What's the advantage of lib-y compared to obj-y?
>
> Basically exactly what I quoted above -- unused object files don't get
> linked into the kernel image and don't take up (wasted) space. On the
> other hand, files in obj-y get linked into the kernel unconditionally.
And this can break as soon as the "unused" object files contains
EXPORT_SYMBOL's.
Is it really worth it doing it in this non-intuitive way?
I'd prefer an explicite dependency on a variable if you want to
compile library functions conditionally.
> --Kai
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
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