selftests/bpf: Add verifier tests for xor operation

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Added some test_verifier bounds check test cases for
xor operations.
  $ ./test_verifier
  ...
  #78/u bounds check for reg = 0, reg xor 1 OK
  #78/p bounds check for reg = 0, reg xor 1 OK
  #79/u bounds check for reg32 = 0, reg32 xor 1 OK
  #79/p bounds check for reg32 = 0, reg32 xor 1 OK
  #80/u bounds check for reg = 2, reg xor 3 OK
  #80/p bounds check for reg = 2, reg xor 3 OK
  #81/u bounds check for reg = any, reg xor 3 OK
  #81/p bounds check for reg = any, reg xor 3 OK
  #82/u bounds check for reg32 = any, reg32 xor 3 OK
  #82/p bounds check for reg32 = any, reg32 xor 3 OK
  #83/u bounds check for reg > 0, reg xor 3 OK
  #83/p bounds check for reg > 0, reg xor 3 OK
  #84/u bounds check for reg32 > 0, reg32 xor 3 OK
  #84/p bounds check for reg32 > 0, reg32 xor 3 OK
  ...

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200825064609.2018077-1-yhs@fb.com

...

This commit is contained in:

Yonghong Song 2020-08-24 23:46:09 -07:00 • committed by Alexei Starovoitov

parent 2921c90d47

commit f5493c514c

1 changed files with 146 additions and 0 deletions

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tools/testing/selftests/bpf/verifier/bounds.c

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