Messages in this thread | | | Subject | Re: [PATCH 2/2] selftests/userfaultfd: improve syscall number definition | From | Michael Ellerman <> | Date | Wed, 23 Sep 2015 19:55:09 +1000 |
| |
On Tue, 2015-09-22 at 18:15 +0100, Andre Przywara wrote: > On 22/09/15 15:06, Andrea Arcangeli wrote: > > Andre, could you see if linux-next (which includes -mm) works for you > > by just running "cd tools/testing/selftests/vm/ && make"? If there's > > any further change required could you diff it against linux-next? > > This doesn't compile now for me, because it looks into > /usr/include/asm/unistd.h, which I keep to the distribution copy of it. > Also linux/userfaultfd.h is missing, because it's brand new. ... > I guess the right solution would be to hack the Makefile to set the > include path to the kernel's copy of include/uapi, though I am not sure > this works cleanly for different architectures and separate build > directories. I will give this a try ...
Not that's not the right solution.
The right solution is to export the kernel headers, the Makefile will pick them up (at least in linux-next):
$ cd linux $ make headers_install $ ls usr/include/ asm/ asm-generic/ drm/ linux/ misc/ mtd/ rdma/ scsi/ sound/ uapi/ video/ xen/ $ make -C tools/testing/selftests TARGETS=vm ... $ ls tools/testing/selftests/vm/userfaultfd tools/testing/selftests/vm/userfaultfd*
cheers
| |