Re: [PATCH 2/2] objtool: Support CROSS_COMPILE

[Stephen Rothwell]

Hi Josh,

On Wed, 2 Mar 2016 21:20:58 -0600 Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote:
>
> On Thu, Mar 03, 2016 at 01:43:14PM +1100, Stephen Rothwell wrote:
> > 
> > I was wondering if this would be more appropriate in scripts/objtool
> > since it is used during the building of the kernel.  Or does it have a
> > wider use?  
> 
> Yeah, it was actually in the scripts/ dir in earlier revisions of the
> patch set, for that very reason.  However, Ingo pointed out that it
> could be useful beyond the kernel, so we graduated it to a "tool".
> 
> > 
> > We have HOSTCC with its associated HOSTCFLAGS etc ... I am not sure if
> > that is more appropriate (but it does take care of people using clang).  
> 
> The "tools" are almost completely separate from the rest of the kernel.
> They have their own scaled-down version of kbuild, which doesn't have
> HOSTCC.
> 
> But yeah, we might eventually need to copy some of the host compilation
> infrastructure from scripts/Makefile.host over to the tools/ side.

That all sounds sane, thanks.

I did not add this to linux-next today, but may tomorrow if people
think it is sensible to do so (for testing on a powerpcle host).  If I
do, I will just back out to the previous patch if it all goes south (so
it won't impact on the rest of the tip tree's testing).
-- 
Cheers,
Stephen Rothwell