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Date: Tue, 22 Sep 2015 20:01:40 +0100
From: Andrew Turner <andrew@fubar.geek.nz>
To: Dimitry Andric <dim@FreeBSD.org>
Cc: src-committers@freebsd.org, svn-src-projects@freebsd.org
Subject: Re: svn commit: r288121 -
 projects/clang370-import/contrib/libc++/src/support
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On Tue, 22 Sep 2015 17:34:51 +0000 (UTC)
Dimitry Andric <dim@FreeBSD.org> wrote:

> Author: dim
> Date: Tue Sep 22 17:34:51 2015
> New Revision: 288121
> URL: https://svnweb.freebsd.org/changeset/base/288121
> 
> Log:
>   Work around clang emitting libcalls to __atomic_add_fetch() and
> friends in libc++, on __ARM_ARCH < 6.  Additionally, supply the
> missing stub __libcpp_relaxed_store(), as proposed in
> http://reviews.llvm.org/D13051 
>   NOTE: this needs to be fixed properly later on, by supplying library
>   functions implementing atomic operations for arm < v6.  We should
>   probably take those from sys/arm/arm/stdatomic.c, and stuff them
> into either libgcc or compiler-rt.

We already pull it into compiler-rt, that's how we get the other
__atomic_* functions on arm < v6.

Andrew