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From: Andrii Nakryiko <andrii.nakryiko@gmail.com>
To: Yaniv Agman <yanivagman@gmail.com>
Cc: bpf <bpf@vger.kernel.org>, Daniel Borkmann <daniel@iogearbox.net>
Subject: Re: libbpf error: unknown register name 'r0' in asm
Date: Fri, 9 Oct 2020 11:03:20 -0700	[thread overview]
Message-ID: <CAEf4BzYTja99-1LHdMK69qY3XrqgtyKVheV3YH7e89JY0C4E1A@mail.gmail.com> (raw)
In-Reply-To: <CAMy7=ZUk08w5Gc2Z-EKi4JFtuUCaZYmE4yzhJjrExXpYKR4L8w@mail.gmail.com>

On Fri, Oct 9, 2020 at 9:06 AM Yaniv Agman <yanivagman@gmail.com> wrote:
>
> Pulling the latest changes of libbpf and compiling my application with it,
> I see the following error:
>
> ../libbpf/src//root/usr/include/bpf/bpf_helpers.h:99:10: error:
> unknown register name 'r0' in asm
>                      : "r0", "r1", "r2", "r3", "r4", "r5");

are you including bpf_helpers.h from user-space code? You are using
recent enough Clang to not run into this problem for -target bpf, so
this seems like you are including bpf_helpers.h in the context where
it's not supposed to be included.


>
> The commit which introduced this change is:
> 80c7838600d39891f274e2f7508b95a75e4227c1
>
> I'm not sure if I'm doing something wrong (missing include?), or this
> is a genuine error
>
> Yaniv

  parent reply	other threads:[~2020-10-09 18:03 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-09 16:05 libbpf error: unknown register name 'r0' in asm Yaniv Agman
2020-10-09 16:27 ` Daniel Borkmann
2020-10-09 16:56   ` Yaniv Agman
2020-10-09 17:39     ` Daniel Borkmann
2020-10-09 18:09       ` Yaniv Agman
2020-10-09 18:21         ` Daniel Borkmann
2020-10-09 18:33           ` Yaniv Agman
2020-10-09 18:39             ` Andrii Nakryiko
2020-10-09 19:32               ` Yaniv Agman
2020-10-09 19:53                 ` Andrii Nakryiko
2020-10-09 20:24                   ` Yaniv Agman
2020-10-12 20:03                     ` Andrii Nakryiko
2020-10-12 21:48                       ` Yaniv Agman
2020-10-12 22:16                         ` Andrii Nakryiko
2020-10-09 18:35           ` Andrii Nakryiko
2020-10-09 18:41             ` Daniel Borkmann
2020-10-09 18:59               ` Andrii Nakryiko
2020-10-09 19:08                 ` Yonghong Song
2020-10-09 19:33                   ` Yaniv Agman
2020-10-09 19:58                     ` Daniel Borkmann
2020-10-21  9:43                       ` Yaniv Agman
2020-10-21 17:18                         ` Daniel Borkmann
2020-10-21 19:33                           ` Yaniv Agman
2020-10-09 17:41   ` Yonghong Song
2020-10-09 18:03 ` Andrii Nakryiko [this message]
2020-10-09 18:12   ` Yaniv Agman

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