From: Linus Torvalds <torvalds@osdl.org>
To: Robin Rosenberg <robin.rosenberg.lists@dewire.com>
Cc: Linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: Compiling C++ kernel module + Makefile
Date: Mon, 19 Jan 2004 22:46:23 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.58.0401192241080.2311@home.osdl.org> (raw)
In-Reply-To: <200401200159.22693.robin.rosenberg.lists@dewire.com>
On Tue, 20 Jan 2004, Robin Rosenberg wrote:
>
> This is the "We've always used COBOL^H^H^H^H" argument.
In fact, in Linux we did try C++ once already, back in 1992.
It sucks. Trust me - writing kernel code in C++ is a BLOODY STUPID IDEA.
The fact is, C++ compilers are not trustworthy. They were even worse in
1992, but some fundamental facts haven't changed:
- the whole C++ exception handling thing is fundamentally broken. It's
_especially_ broken for kernels.
- any compiler or language that likes to hide things like memory
allocations behind your back just isn't a good choice for a kernel.
- you can write object-oriented code (useful for filesystems etc) in C,
_without_ the crap that is C++.
In general, I'd say that anybody who designs his kernel modules for C++ is
either
(a) looking for problems
(b) a C++ bigot that can't see what he is writing is really just C anyway
(c) was given an assignment in CS class to do so.
Feel free to make up (d).
Linus
next prev parent reply other threads:[~2004-01-20 6:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-16 21:09 Compiling C++ kernel module + Makefile Ashish sddf
2004-01-16 22:07 ` Richard B. Johnson
2004-01-17 12:59 ` Bart Samwel
2004-01-19 13:46 ` Richard B. Johnson
2004-01-19 17:40 ` Bart Samwel
2004-01-19 18:39 ` Richard B. Johnson
2004-01-19 20:02 ` Bart Samwel
2004-01-19 20:37 ` Richard B. Johnson
2004-01-19 21:24 ` Bart Samwel
2004-01-20 15:20 ` Richard B. Johnson
2004-01-20 17:34 ` Zan Lynx
2004-01-20 18:10 ` Richard B. Johnson
2004-01-20 13:38 ` Thomas Lahoda
2004-01-21 2:24 ` Michael Clark
2004-01-20 18:16 ` Chris Friesen
2004-01-21 17:01 ` Giuliano Pochini
2004-01-21 17:16 ` Bart Samwel
2004-01-20 0:59 ` Robin Rosenberg
2004-01-20 6:46 ` Linus Torvalds [this message]
2004-01-20 7:32 ` Robin Rosenberg
2004-01-20 10:46 ` Bart Samwel
2004-01-20 5:29 ` Valdis.Kletnieks
2004-01-20 9:48 ` Bart Samwel
2004-01-16 22:40 ` Sam Ravnborg
2004-01-19 13:21 Petr Vandrovec
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