selftests: bpf: add tests for shifts by zero

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There are currently no tests for ALU64 shift operations when the shift
amount is 0. This adds 6 new tests to make sure they are equivalent
to a no-op. The x32 JIT had such bugs that could have been caught by
these tests.

Cc: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Luke Nelson <luke.r.nels@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

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Luke Nelson 2019-06-28 22:57:51 -07:00 • committed by Daniel Borkmann

parent 6fa632e719

commit ac8786c72e

1 changed files with 85 additions and 0 deletions

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

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