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Date: Tue, 13 Feb 2018 17:32:15 +0100
From: Julien Ramseier <j.ramseier@...il.com>
To: musl@...ts.openwall.com
Subject: Re: shmctl not found when compiling compiler-rt



> Le 13 févr. 2018 à 15:15, Szabolcs Nagy <nsz@...t70.net> a écrit :
> 
> * Dmitry Golovin <dima@...ovin.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.
> 

The DECLARE_REAL was removed in https://reviews.llvm.org/D40766 <https://reviews.llvm.org/D40766>.
Though I didn't understand why.


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