By: FrankHB (frankhb1989.delete@this.gmail.com), July 16, 2021 6:27 am
Room: Moderated Discussions
cqwrteur (euloanty.delete@this.live.com) on July 14, 2021 3:12 am wrote:
> > Where did you get that from? He could always ban use of the feature, or even have a ompiler
> > that didn't use debug data to restore registers - that would lead to faster predictable
> > exception handling even if it slightly slows normal processing when exceptions are not thrown.
> > It is not as though C++ actually encourages use of the feature like Python does.
>
>
> 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
>
>
>
> Yes, Exception Handling is the largest issue. Linus Torvalds' own words.
Yes, Linus Torvalds encouraged object-oriented code. Your turn to bite him.
> > Where did you get that from? He could always ban use of the feature, or even have a ompiler
> > that didn't use debug data to restore registers - that would lead to faster predictable
> > exception handling even if it slightly slows normal processing when exceptions are not thrown.
> > It is not as though C++ actually encourages use of the feature like Python does.
>
>
> 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
>
>
>
> Yes, Exception Handling is the largest issue. Linus Torvalds' own words.
Yes, Linus Torvalds encouraged object-oriented code. Your turn to bite him.
Topic | Posted By | Date |
---|---|---|
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Is unsafe hell truly good for linux kernel in the future? | Brendan | 2021/07/09 11:59 PM |
Is unsafe hell truly good for linux kernel in the future? | cqwrteur | 2021/07/10 12:37 PM |
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Is unsafe hell truly good for linux kernel in the future? | cqwrteur | 2021/07/10 12:40 PM |
Is unsafe hell truly good for linux kernel in the future? | Gabriele Svelto | 2021/07/10 02:59 PM |
Is unsafe hell truly good for linux kernel in the future? | cqwrteur | 2021/07/10 03:42 PM |
Is unsafe hell truly good for linux kernel in the future? | anon | 2021/07/11 05:11 AM |
Is unsafe hell truly good for linux kernel in the future? | cqwrteur | 2021/07/12 11:40 AM |
Is unsafe hell truly good for linux kernel in the future? | Foo_ | 2021/07/10 05:56 AM |
Is unsafe hell truly good for linux kernel in the future? | cqwrteur | 2021/07/10 08:59 AM |
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Is unsafe hell truly good for linux kernel in the future? | Foo_ | 2021/07/22 10:10 AM |
Is unsafe hell truly good for linux kernel in the future? | cqwrteur | 2021/07/10 09:22 AM |
Is unsafe hell truly good for linux kernel in the future? | cqwrteur | 2021/07/10 09:24 AM |
Déja Vu | Dismissive | 2021/07/10 09:41 AM |
Déja Vu | cqwrteur | 2021/07/10 09:47 AM |
Déja Vu | Dismissive | 2021/07/10 09:51 AM |
Déja Vu | Michael S | 2021/07/10 12:11 PM |
Is unsafe hell truly good for linux kernel in the future? | Gabriele Svelto | 2021/07/10 11:51 AM |
Is unsafe hell truly good for linux kernel in the future? | cqwrteur | 2021/07/10 12:32 PM |
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Is unsafe hell truly good for linux kernel in the future? | cqwrteur | 2021/07/10 03:41 PM |
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Is unsafe hell truly good for linux kernel in the future? | cqwrteur | 2021/07/10 05:27 PM |
Interesting response... (NT) | Rayla | 2021/07/10 08:02 PM |
perhaps just another lousy AI bot? (NT) | anonymou5 | 2021/07/10 08:33 PM |
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perhaps just another lousy AI bot? | dmcq | 2021/07/11 02:29 AM |
perhaps just another lousy AI bot? | anon | 2021/07/11 05:16 AM |
perhaps just another lousy AI bot? | cqwrteur | 2021/07/12 02:56 PM |
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perhaps just another lousy AI bot? | cqwrteur | 2021/07/11 10:59 AM |
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Alternatives? | anon | 2021/07/14 02:50 AM |
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Alternatives? | Anon | 2021/07/14 03:19 AM |
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Is unsafe hell truly good for linux kernel in the future? | ⚛ | 2021/07/12 05:27 AM |
Is unsafe hell truly good for linux kernel in the future? | Anon | 2021/07/12 08:46 AM |
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