Re: [PATCH] sparc: vdso: Fix build failure seen due to kbuild changes

From: Guenter Roeck
Date: Mon Nov 11 2019 - 09:35:24 EST


On 11/10/19 5:47 PM, Masahiro Yamada wrote:
On Mon, Nov 11, 2019 at 10:32 AM David Miller <davem@xxxxxxxxxxxxx> wrote:

From: Guenter Roeck <linux@xxxxxxxxxxxx>
Date: Sun, 10 Nov 2019 17:11:06 -0800

sparc64:allmodconfig fails to build with the following error.

unrecognized e_machine 18 arch/sparc/vdso/vdso32/vclock_gettime.o
arch/sparc/vdso/vdso32/vclock_gettime.o: failed
make[2]: *** [arch/sparc/vdso/vdso32/vclock_gettime.o] Error 1
make[2]: *** Deleting file 'arch/sparc/vdso/vdso32/vclock_gettime.o'
make[2]: *** Waiting for unfinished jobs....

The problem bisects to commit a3de7a72c517 ("kbuild: change
*FLAGS_<basetarget>.o to take the path relative to $(obj)").
Duplicate the x86 specific defines from this commit to the sparc
vdso Makefile to fix the problem.

Fixes: a3de7a72c517 ("kbuild: change *FLAGS_<basetarget>.o to take the path relative to $(obj)")
Cc: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
Cc: Marc Zyngier <maz@xxxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>

Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>


Yeah, I had submitted a fix a long time before.

https://lore.kernel.org/patchwork/patch/1130469/

I do not know why it was not picked up.


Why don't you just push it upstream yourself ?


It is OK whether any patch is picked up
as long as the build error is fixed.

Same here.


(I think CFLAGS_REMOVE_vdso32/vdso-note.o
should be added too, though)

Hard to decide for someone not involved in vdso development.
It wasn't added for x86, and it compiles without, so I rather
left it alone.

Guenter