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From: John Baldwin <jhb@freebsd.org>
To: Bryan Drewery <bdrewery@freebsd.org>
Cc: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: Re: svn commit: r303755 - head/sys/kern
Date: Thu, 04 Aug 2016 17:07:57 -0700
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On Thursday, August 04, 2016 07:14:18 PM Bryan Drewery wrote:
> Author: bdrewery
> Date: Thu Aug  4 19:14:18 2016
> New Revision: 303755
> URL: https://svnweb.freebsd.org/changeset/base/303755
> 
> Log:
>   Still provide freebsd10_* symbols from libc for COMPAT10.
>   
>   r296773 was done to only remove libc symbols for <7.  We want to provide
>   the syscall symbols going forward for 7+.

In particular, binaries from FreeBSD versions older than 7 do not link
against libc.so.7.  However, we want compat system call symbols in libc.so.7
for COMPAT_FREEBSD7 and later in case a shim is needed to implement an
older version of a libc symbol via symver_compat().

-- 
John Baldwin