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From: illusionist.neo@gmail.com (Shubham Bansal)
To: linux-arm-kernel@lists.infradead.org
Subject: arch: arm: bpf: Converting cBPF to eBPF for arm 32 bit
Date: Thu, 6 Apr 2017 16:35:17 +0530	[thread overview]
Message-ID: <CAHgaXdJ1M4W3p9=B2hJmtxByPsA5-XHae8U6YtDH_2r_XMaR5A@mail.gmail.com> (raw)
In-Reply-To: <CAHgaXdKfbob3WHMho32JSh_dmfp2A=cjcePqk+NfajVpShPE6Q@mail.gmail.com>

Gentle Reminder.

Anybody can tell me how to test the JIT compiler ?
Best,
Shubham Bansal


On Thu, Mar 30, 2017 at 7:34 PM, Shubham Bansal
<illusionist.neo@gmail.com> wrote:
> Thanks Daniel.
>
> Can you tell me how to test the eBPF JIT compiler? It would be great
> if you could tell me starting from compiling to proper testing.
> Best,
> Shubham Bansal
>
>
> On Wed, Mar 29, 2017 at 5:30 AM, Daniel Borkmann <daniel@iogearbox.net> wrote:
>> Hi Shubham,
>>
>> On 03/28/2017 10:49 PM, Shubham Bansal wrote:
>> [...]
>>>
>>> Do you have any document to understand the working of tail calls? I
>>> looked at your presentations but it seemed confusing to me. Anything
>>> simple would be great, just about the tail calls. I don't think I need
>>> examples, I can get them from your presentations. I just need a very
>>> general idea. May be you know the code in kernel where it is
>>> implemented.
>>
>>
>> Sure, it's in __bpf_prog_run(), see the JMP_TAIL_CALL (kernel/bpf/core.c
>> +1019).
>> That's effectively what JITs implement. [1] page 3 has a high-level
>> description
>> as well, hope that helps.
>>
>> Thanks,
>> Daniel
>>
>>   [1]
>> http://www.netdevconf.org/1.1/proceedings/papers/On-getting-tc-classifier-fully-programmable-with-cls-bpf.pdf

  reply	other threads:[~2017-04-06 11:05 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-30 10:38 arch: arm: bpf: Converting cBPF to eBPF for arm 32 bit Shubham Bansal
2017-01-30 21:57 ` Kees Cook
     [not found]   ` <CAHgaXd+nj69n-Xf46N=4M-j-0hKHVrrLfsvRZCG=2CCAtVF6ZA@mail.gmail.com>
     [not found]     ` <CAGXu5j+NSLomuSgD40kys+pWc+J9aB6Bbk_gSP9Lp_ScimQn_w@mail.gmail.com>
2017-02-01 13:01       ` Shubham Bansal
     [not found]         ` <76621BFF-B30B-4417-AB2B-DB21CA6092D9@netronome.com>
2017-02-03  7:04           ` Shubham Bansal
2017-02-03  8:25             ` nick viljoen
2017-02-08  7:29         ` Shubham Bansal
2017-02-08 19:41         ` Kees Cook
2017-03-15 12:13           ` Shubham Bansal
2017-03-15 21:55             ` David Miller
2017-03-28 20:49               ` Shubham Bansal
2017-03-29  0:00                 ` Daniel Borkmann
2017-03-30 14:04                   ` Shubham Bansal
2017-04-06 11:05                     ` Shubham Bansal [this message]
2017-04-06 12:51                       ` Daniel Borkmann
2017-05-06 16:48                         ` Shubham Bansal
2017-05-06 18:38                           ` David Miller
2017-05-06 20:27                             ` Shubham Bansal
2017-05-06 22:17                               ` Shubham Bansal
2017-05-09 20:12                         ` Shubham Bansal
2017-05-09 20:19                           ` David Miller
2017-05-09 20:25                           ` Daniel Borkmann
     [not found] <CAHgaXdKsO2xoKYp7g91g+n+d_1KHSSByLjzBB-WjVXSjhB7qxw@mail.gmail.com>
     [not found] ` <20170510.212952.1440495072777358778.davem@davemloft.net>
     [not found]   ` <CAHgaXdK8LEEUPm4jTRRzCnjwdWAauHmmB=caZsSFY8MmStH89Q@mail.gmail.com>
     [not found]     ` <20170510.215218.2185526627014393313.davem@davemloft.net>
     [not found]       ` <CAHgaXdKZ_v+iO7uqEDx7PA7D+xcp1FngGvJ1SRSsGXNQ-iWWDQ@mail.gmail.com>
2017-05-11  9:32         ` Shubham Bansal
2017-05-11 15:30           ` Kees Cook
2017-05-13 21:38             ` Shubham Bansal
2017-05-15 17:44               ` Kees Cook
2017-05-15 19:55               ` Daniel Borkmann
2017-05-20 20:01                 ` Shubham Bansal
2017-05-22 13:01                   ` Daniel Borkmann
2017-05-22 17:04                     ` Shubham Bansal
2017-05-22 20:05                       ` Kees Cook
2017-05-23  2:58                         ` Shubham Bansal
2017-05-23  4:27                           ` Kees Cook
2017-05-22 18:58                   ` Kees Cook
2017-05-22 19:08                     ` Florian Fainelli
2017-05-23  3:34                       ` Shubham Bansal
2017-05-23  4:22                         ` Kees Cook
2017-05-23  5:03                           ` Shubham Bansal
2017-05-23  5:35                             ` Kees Cook
     [not found]                               ` <CAHgaXdJa9uJYO3bODuzDRaqOas0i=zMk0jioWFXKm_=UJRtVrw@mail.gmail.com>
2017-05-23 19:32                                 ` Kees Cook

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