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Date:   Sat, 6 May 2017 22:18:16 +0530
From:   Shubham Bansal <>
To:     Daniel Borkmann <>
Cc:     David Miller <>,
        Kees Cook <>,
        Mircea Gherzan <>,
        Network Development <>,,,
Subject: Re: arch: arm: bpf: Converting cBPF to eBPF for arm 32 bit

Hi Daniel,

Thanks for the last reply about the testing of eBPF JIT.

I have one issue though, I am not able to find what BPF_ABS and
BPF_IND instruction does exactly. It not described on this link - either.
Can you please tell me where I could find the description of these
instructions please?
Shubham Bansal

On Thu, Apr 6, 2017 at 6:21 PM, Daniel Borkmann <> wrote:
> On 04/06/2017 01:05 PM, Shubham Bansal wrote:
>> Gentle Reminder.
> Sorry for late reply.
>> Anybody can tell me how to test the JIT compiler ?
> There's lib/test_bpf.c, see Documentation/networking/filter.txt +1349
> for some more information. It basically contains various test cases that
> have the purpose to test the JIT with corner cases. If you see a useful
> test missing, please send a patch for it, so all other JITs can benefit
> from this as well. For extracting disassembly from a generated test case,
> check out bpf_jit_disasm (Documentation/networking/filter.txt +486).
> Thanks,
> Daniel

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