From: Dmitry Golovin <dima@golovin.in>
To: "musl@lists.openwall.com" <musl@lists.openwall.com>
Subject: Re: shmctl not found when compiling compiler-rt
Date: Tue, 13 Feb 2018 16:33:54 +0200 [thread overview]
Message-ID: <203971518532434@web31o.yandex.ru> (raw)
In-Reply-To: <CAG6b3Eoiahd8H1zK70wvx_=PWDrHGaQsjQ=Q_w_L8NV9Mt6cWQ@mail.gmail.com>
Thank you for the patch, but I don't think it is relevant to this problem.
If you take a look at my build script, you'll see that I don't need it: https://github.com/tpimh/ngtc/blob/alpine/build.sh#L73
Regards,
Dmitry
13.02.2018, 16:31, "Matúš Olekšák" <oleksak.matus@gmail.com>:
> Try this patch to correctly link compiler-rt.
>
> 2018-02-13 15:15 GMT+01:00 Szabolcs Nagy <nsz@port70.net>:
>> * Dmitry Golovin <dima@golovin.in> [2018-02-13 15:34:34 +0200]:
>>> I'm trying to compile compiler-rt with musl and it used to be fine, but I can't succeed with recent versions of compiler-rt.
>>>
>>> The compilation fails because of the lack of real_shmctl while musl clearly has shmctl: http://git.musl-libc.org/cgit/musl/tree/src/ipc/shmctl.c
>>>
>>> Here is the complete output:
>>>
>>> llvm/projects/compiler-rt/lib/msan/msan_interceptors.cc:1446:15: error: no member named 'real_shmctl' in namespace '__interception'; did you mean 'real_ioctl'?
>>> int res = REAL(shmctl)(shmid, shmctl_ipc_stat, &ds);
>>> ^~~~~~~~~~~~
>>
>> there should be a
>>
>> DECLARE_REAL(int, shmctl, int shmid, int cmd, void *buf)
>>
>> in that file which defines __interception::real_shmctl.
>>
>>> To compile without glibc on linux using this patch:
>>> https://github.com/tpimh/ngtc/blob/alpine/patch/compiler-rt-01-sanitizer-nongnu.patch
>>>
>>> Regards,
>>> Dmitry
next prev parent reply other threads:[~2018-02-13 14:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-13 13:34 Dmitry Golovin
2018-02-13 14:15 ` Szabolcs Nagy
2018-02-13 14:30 ` Matúš Olekšák
2018-02-13 14:33 ` Szabolcs Nagy
2018-02-13 14:33 ` Dmitry Golovin [this message]
2018-02-13 14:36 ` Matúš Olekšák
2018-02-13 14:51 ` Matúš Olekšák
2018-02-13 16:32 ` Julien Ramseier
2018-02-14 15:29 ` Dmitry Golovin
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