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To: Mateusz Guzik <mjguzik@gmail.com>, freebsd-current@freebsd.org,
 avg@freebsd.org
Subject: Re: compiler info in kernel identification string
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Comments: In-reply-to Mateusz Guzik <mjguzik@gmail.com>
 message dated "Wed, 14 Nov 2012 00:43:03 +0100."
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Date: Wed, 14 Nov 2012 09:01:55 +0200
From: Daniel Braniss <danny@cs.huji.ac.il>
Message-ID: <E1TYWyx-0003b5-CF@kabab.cs.huji.ac.il>
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> Hello,
> 
> avg@ suggested to include compiler version in the kernel so that it's
> present in uname (and one can easly tell what was used to compile it).
> 
> Here is my attempt:
> http://people.freebsd.org/~mjg/patches/newvers-compiler.diff
> 
> Basically adds compiler name and version/revision after revision of
> system sources.
> 
> Sample output from dirty git sources:
> gcc:
> FreeBSD 10.0-CURRENT #7 r242962=264d569-dirty(gcc-4.2.1-20070831): Wed
> Nov 14 00:11:51 CET 2012
> 
> clang:
> FreeBSD 10.0-CURRENT #8 r242962=264d569-dirty(clang-r162107): Wed Nov 14
> 00:12:26 CET 2012
> 
> Sample output from svn with gcc:
> FreeBSD 10.0-CURRENT #1 r243006:243007M(gcc-4.2.1-20070831): Wed Nov 14
> 00:41:23 CET 2012
> 
> I have no strong opinions on format, I just want this information easly
> accessible.
> 
> Comments?

in the old days (I'm talking before C :-) I remmeber one compiler
putting such info in the code it produced, I wonder if that's the case
with gcc/clang, and if so it would be nice if file(1) could show it.
my 3c,
	danny