[PATCH RFC v3 0/4] Add cross-compilation support to eBPF samples

These patches fix issues seen when cross-compiling eBPF samples on arm64.
Compared to [1], I dropped the controversial inline-asm patch pending further
discussion on the right way to do it. However these patches are still a step in
the right direction and I wanted them to get in before the more controversial
bit.

[1] https://lkml.org/lkml/2017/8/7/417

Joel Fernandes (4):
  samples/bpf: Use getppid instead of getpgrp for array map stress
  samples/bpf: Enable cross compiler support
  samples/bpf: Fix pt_regs issues when cross-compiling
  samples/bpf: Add documentation on cross compilation

 samples/bpf/Makefile                      |  7 +++-
 samples/bpf/README.rst                    | 10 ++++++
 samples/bpf/map_perf_test_kern.c          |  2 +-
 samples/bpf/map_perf_test_user.c          |  2 +-
 tools/testing/selftests/bpf/bpf_helpers.h | 56 +++++++++++++++++++++++++++----
 5 files changed, 67 insertions(+), 10 deletions(-)

CC: Alexei Starovoitov <ast@kernel.org>
CC: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Miller <davem@davemloft.net>
-- 
2.14.1.581.gf28d330327-goog

On Sun, Sep 03, 2017 at 11:23:21AM -0700, Joel Fernandes wrote:

These patches fix issues seen when cross-compiling eBPF samples on arm64.
Compared to [1], I dropped the controversial inline-asm patch pending further
discussion on the right way to do it. However these patches are still a step in
the right direction and I wanted them to get in before the more controversial
bit.

All patches in this set look good to me.
When you repost without changes after net-next reopens pls keep my:
Acked-by: Alexei Starovoitov <ast@kernel.org>

Hi Alexei,

On Tue, Sep 5, 2017 at 8:24 PM, Alexei Starovoitov
[off-list ref] wrote:

On Sun, Sep 03, 2017 at 11:23:21AM -0700, Joel Fernandes wrote:

quoted

These patches fix issues seen when cross-compiling eBPF samples on arm64.
Compared to [1], I dropped the controversial inline-asm patch pending further
discussion on the right way to do it. However these patches are still a step in
the right direction and I wanted them to get in before the more controversial
bit.

All patches in this set look good to me.
When you repost without changes after net-next reopens pls keep my:
Acked-by: Alexei Starovoitov <ast@kernel.org>

Thanks a lot! will do.

Regards,
Joel