netdev - [PATCH bpf 0/2] selftests: bpf: more sub-register zero extension unit tests

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Date:   Wed, 29 May 2019 10:57:07 +0100
From:   Jiong Wang <jiong.wang@...ronome.com>
To:     alexei.starovoitov@...il.com, daniel@...earbox.net
Cc:     bjorn.topel@...el.com, bpf@...r.kernel.org, netdev@...r.kernel.org,
        oss-drivers@...ronome.com, Jiong Wang <jiong.wang@...ronome.com>
Subject: [PATCH bpf 0/2] selftests: bpf: more sub-register zero extension unit tests

JIT back-ends need to guarantee high 32-bit cleared whenever one eBPF insn
write low 32-bit sub-register only. It is possible that some JIT back-ends
have failed doing this and are silently generating wrong image.

This set completes the unit tests, so bug on this could be exposed.

Jiong Wang (2):
  selftests: bpf: move sub-register zero extension checks into subreg.c
  selftests: bpf: complete sub-register zero extension checks

 tools/testing/selftests/bpf/verifier/basic_instr.c |  39 --
 tools/testing/selftests/bpf/verifier/subreg.c      | 533 +++++++++++++++++++++
 2 files changed, 533 insertions(+), 39 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/verifier/subreg.c

-- 
2.7.4