bpf: x86: add missing 'shift by register' instructions to x64 eBPF JIT

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'shift by register' operations are supported by eBPF interpreter, but were
accidently left out of x64 JIT compiler. Fix it and add a testcase.

Reported-by: Brendan Gregg <brendan.d.gregg@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Fixes: 622582786c ("net: filter: x86: internal BPF JIT")
Signed-off-by: David S. Miller <davem@davemloft.net>

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Alexei Starovoitov 2014-08-25 12:27:02 -07:00 • committed by David S. Miller

parent 9785820e6d

commit 72b603ee8c

2 changed files with 80 additions and 0 deletions

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42

arch/x86/net/bpf_jit_comp.c

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38

lib/test_bpf.c

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