Re: [PATCH] tests/vpci: Use $(CC) instead of $(HOSTCC)

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Tue, Jun 03, 2025 at 08:52:38AM +0200, Orzel, Michal wrote:
> 
> 
> On 03/06/2025 08:46, Roger Pau Monné wrote:
> > On Mon, Jun 02, 2025 at 05:09:29PM +0200, Michal Orzel wrote:
> >> These tests are supposed to run on target. HOSTCC can be different than
> >> CC (when cross-compiling). At the moment, tests installation would put
> >> a binary of a wrong format in the destdir.
> >>
> >> Fixes: e90580f25bd7 ("vpci: introduce basic handlers to trap accesses to 
> >> the PCI config space")

Hm, it's unclear to me whether this is the correct fixes tag.
Previous to:

96a587a05736 tools/tests: Add install target for vPCI

The test was not installed on the host, and hence didn't need to use
CC instead of HOSTCC (or at least that's my understating).

> >> Signed-off-by: Michal Orzel <michal.orzel@xxxxxxx>
> >> ---
> >>  tools/tests/vpci/Makefile | 2 +-
> >>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/tools/tests/vpci/Makefile b/tools/tests/vpci/Makefile
> >> index 9450f7593a41..1101a669e118 100644
> >> --- a/tools/tests/vpci/Makefile
> >> +++ b/tools/tests/vpci/Makefile
> >> @@ -11,7 +11,7 @@ run: $(TARGET)
> >>    ./$(TARGET)
> >>  
> >>  $(TARGET): vpci.c vpci.h list.h main.c emul.h
> >> -  $(HOSTCC) $(CFLAGS_xeninclude) -g -o $@ vpci.c main.c
> >> +  $(CC) $(CFLAGS_xeninclude) -g -o $@ vpci.c main.c
> > 
> > This was already posted in:
> > 
> > https://lore.kernel.org/xen-devel/20230313121226.86557-1-roger.pau@xxxxxxxxxx/
> > 
> > And got no feedback.
> > 
> > I'm happy for your change to go in, but you might also consider
> > picking up the run target adjustment part of that previous patch.
> You're the maintainer of this file. You should tell me what I need to do
> unless you want to wait for Anthony feedback.

I would also add the chunk to adjust the run target if you use CC
instead of HOSTCC.

Thanks, Roger.