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Date: Mon, 8 Sep 2003 22:46:11 -0400
From: Alexander Kabaev <kabaev@mail.ru>
To: John Giacomoni <John.Giacomoni@colorado.edu>
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cc: freebsd-hackers@freebsd.org
Subject: Re: C++ code in a kernel module?
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On Mon, 8 Sep 2003 11:35:37 -0600
John Giacomoni <John.Giacomoni@colorado.edu> wrote:

>  I was planning on using the macro __cplusplus to toggle using
>  extern "C" { }, however the bsd.kmod.mk style Makefiles seem to
>  force the language to -std=c99 even when compiling with c++ .
> 
>  my initial steps have been as follows:
>  take a functioning C based kernel module and rename to .cc
>  added extern "C" around the includes.
>  #defined key words such as new to xxx_new
>  recompiled the new .cc file by hand without -std=c99, but
>  keeping all the flags as the Makefile set them.
>  then linked using the Makefile and finally loaded the module.

-fno-rtti -fno-exceptions is probably a must unless you want to bring a
whole libsupc++ library into the kernel.

-- 
Alexander Kabaev