[PATCH v2 1/2] bpf: add atomic xchg support

[Konstantin Ananyev]

> Add support for BPF atomic xchg instruction, and tests for it. This
> instruction can be produced using compiler intrinsics.
> 
> Signed-off-by: Marat Khalili <marat.khalili at huawei.com>
> ---
>  app/test/test_bpf.c     | 459 ++++++++++++++++++++++++++++++++++++++++
>  lib/bpf/bpf_def.h       |   5 +
>  lib/bpf/bpf_exec.c      |  35 ++-
>  lib/bpf/bpf_jit_arm64.c |  59 ++++--
>  lib/bpf/bpf_jit_x86.c   |  37 +++-
>  lib/bpf/bpf_validate.c  |  22 +-
>  6 files changed, 580 insertions(+), 37 deletions(-)

Acked-by: Konstantin Ananyev <konstantin.ananyev at huawei.com>
Tested-by: Konstantin Ananyev <konstantin.ananyev at huawei.com>

> 2.43.0