From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Zong Li <zong.li@sifive.com>
Cc: Alexandre Ghiti <alexandre@ghiti.fr>,
Palmer Dabbelt <palmerdabbelt@google.com>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Daniel Borkmann <daniel@iogearbox.net>,
Alexei Starovoitov <ast@kernel.org>,
Network Development <netdev@vger.kernel.org>,
Linux-Next Mailing List <linux-next@vger.kernel.org>,
"linux-kernel@vger.kernel.org List"
<linux-kernel@vger.kernel.org>,
ppc-dev <linuxppc-dev@lists.ozlabs.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: linux-next: build warning after merge of the bpf-next tree
Date: Mon, 13 Jan 2020 21:23:50 -0800 [thread overview]
Message-ID: <CAADnVQ+kbxpw7fxRZodTtE7AmEmRDgO9fcmMD8kKRssS8WJizA@mail.gmail.com> (raw)
In-Reply-To: <CANXhq0pn+Nq6T5dNyJiB6xvmqTnPSzo8sVfqHhGyWUURY+1ydg@mail.gmail.com>
On Sun, Jan 12, 2020 at 8:33 PM Zong Li <zong.li@sifive.com> wrote:
>
> I'm not quite familiar with btf, so I have no idea why there are two
> weak symbols be added in 8580ac9404f6 ("bpf: Process in-kernel BTF")
I can explain what these weak symbols are for, but that won't change
the fact that compiler or linker are buggy. The weak symbols should work
in all cases and compiler should pick correct relocation.
In this case it sounds that compiler picked relative relocation and failed
to reach zero from that address.
WARNING: multiple messages have this Message-ID (diff)
From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Zong Li <zong.li@sifive.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
Alexandre Ghiti <alexandre@ghiti.fr>,
Daniel Borkmann <daniel@iogearbox.net>,
Network Development <netdev@vger.kernel.org>,
Palmer Dabbelt <palmerdabbelt@google.com>,
Alexei Starovoitov <ast@kernel.org>,
"linux-kernel@vger.kernel.org List"
<linux-kernel@vger.kernel.org>,
Linux-Next Mailing List <linux-next@vger.kernel.org>,
ppc-dev <linuxppc-dev@lists.ozlabs.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: linux-next: build warning after merge of the bpf-next tree
Date: Mon, 13 Jan 2020 21:23:50 -0800 [thread overview]
Message-ID: <CAADnVQ+kbxpw7fxRZodTtE7AmEmRDgO9fcmMD8kKRssS8WJizA@mail.gmail.com> (raw)
In-Reply-To: <CANXhq0pn+Nq6T5dNyJiB6xvmqTnPSzo8sVfqHhGyWUURY+1ydg@mail.gmail.com>
On Sun, Jan 12, 2020 at 8:33 PM Zong Li <zong.li@sifive.com> wrote:
>
> I'm not quite familiar with btf, so I have no idea why there are two
> weak symbols be added in 8580ac9404f6 ("bpf: Process in-kernel BTF")
I can explain what these weak symbols are for, but that won't change
the fact that compiler or linker are buggy. The weak symbols should work
in all cases and compiler should pick correct relocation.
In this case it sounds that compiler picked relative relocation and failed
to reach zero from that address.
WARNING: multiple messages have this Message-ID (diff)
From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Zong Li <zong.li@sifive.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
Alexandre Ghiti <alexandre@ghiti.fr>,
Daniel Borkmann <daniel@iogearbox.net>,
Network Development <netdev@vger.kernel.org>,
Palmer Dabbelt <palmerdabbelt@google.com>,
Alexei Starovoitov <ast@kernel.org>,
"linux-kernel@vger.kernel.org List"
<linux-kernel@vger.kernel.org>,
Linux-Next Mailing List <linux-next@vger.kernel.org>,
ppc-dev <linuxppc-dev@lists.ozlabs.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: linux-next: build warning after merge of the bpf-next tree
Date: Mon, 13 Jan 2020 21:23:50 -0800 [thread overview]
Message-ID: <CAADnVQ+kbxpw7fxRZodTtE7AmEmRDgO9fcmMD8kKRssS8WJizA@mail.gmail.com> (raw)
In-Reply-To: <CANXhq0pn+Nq6T5dNyJiB6xvmqTnPSzo8sVfqHhGyWUURY+1ydg@mail.gmail.com>
On Sun, Jan 12, 2020 at 8:33 PM Zong Li <zong.li@sifive.com> wrote:
>
> I'm not quite familiar with btf, so I have no idea why there are two
> weak symbols be added in 8580ac9404f6 ("bpf: Process in-kernel BTF")
I can explain what these weak symbols are for, but that won't change
the fact that compiler or linker are buggy. The weak symbols should work
in all cases and compiler should pick correct relocation.
In this case it sounds that compiler picked relative relocation and failed
to reach zero from that address.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-01-14 5:24 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-17 23:56 linux-next: build warning after merge of the bpf-next tree Stephen Rothwell
2019-10-17 23:56 ` Stephen Rothwell
2019-10-18 5:01 ` Alexei Starovoitov
2019-10-18 5:01 ` Alexei Starovoitov
2019-10-28 0:02 ` Stephen Rothwell
2019-10-28 0:02 ` Stephen Rothwell
2020-01-10 22:28 ` Alexandre Ghiti
2020-01-10 22:28 ` Alexandre Ghiti
2020-01-10 22:28 ` Alexandre Ghiti
2020-01-10 23:18 ` Alexei Starovoitov
2020-01-10 23:18 ` Alexei Starovoitov
2020-01-10 23:18 ` Alexei Starovoitov
2020-01-11 14:06 ` Alexandre Ghiti
2020-01-11 14:06 ` Alexandre Ghiti
2020-01-11 14:06 ` Alexandre Ghiti
2020-01-11 0:20 ` Palmer Dabbelt
2020-01-11 0:20 ` Palmer Dabbelt
2020-01-11 0:20 ` Palmer Dabbelt
2020-01-11 14:31 ` Alexandre Ghiti
2020-01-11 14:31 ` Alexandre Ghiti
2020-01-11 14:31 ` Alexandre Ghiti
2020-01-13 4:33 ` Zong Li
2020-01-13 4:33 ` Zong Li
2020-01-13 4:33 ` Zong Li
2020-01-14 5:23 ` Alexei Starovoitov [this message]
2020-01-14 5:23 ` Alexei Starovoitov
2020-01-14 5:23 ` Alexei Starovoitov
2020-01-15 20:48 ` Alexandre Ghiti
2020-01-15 20:48 ` Alexandre Ghiti
2020-01-15 20:48 ` Alexandre Ghiti
-- strict thread matches above, loose matches on Subject: below --
2024-02-06 4:33 Stephen Rothwell
2023-10-13 0:40 Stephen Rothwell
2023-10-13 5:30 ` Stephen Rothwell
2023-10-13 16:54 ` Martin KaFai Lau
2023-02-15 3:45 Stephen Rothwell
2023-02-06 3:54 Stephen Rothwell
2023-02-06 3:59 ` Alexei Starovoitov
2021-12-05 23:55 Stephen Rothwell
2021-12-06 0:43 ` Stephen Rothwell
2021-12-07 3:22 ` Andrii Nakryiko
2020-11-11 1:01 Stephen Rothwell
2020-11-11 14:03 ` Qian Cai
2020-11-11 18:15 ` Andrii Nakryiko
2020-07-14 2:16 Stephen Rothwell
2020-07-14 9:00 ` Jiri Olsa
2020-07-14 9:27 ` Geert Uytterhoeven
2020-07-14 10:33 ` Stephen Rothwell
2020-07-14 10:47 ` Jiri Olsa
2020-07-14 11:15 ` Jiri Olsa
2020-07-14 14:54 ` Alexei Starovoitov
2019-03-24 22:28 Stephen Rothwell
2019-03-24 22:39 ` Willem de Bruijn
2018-05-09 4:49 Stephen Rothwell
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