linux-kernel - Re: [kbuild-all] Re: [PATCH] gcov: fail build on gcov

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Message-ID: <CAHk-=wj8kZ4LdbejRzBbWwGdqewPuV=1U8sEY1KzW3ubQ4AB+w@mail.gmail.com>
Date:   Mon, 15 Mar 2021 16:22:24 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     Rong Chen <rong.a.chen@...el.com>,
        kernel test robot <lkp@...el.com>,
        Peter Oberparleiter <oberpar@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        kbuild-all@...ts.01.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [kbuild-all] Re: [PATCH] gcov: fail build on gcov_info size mismatch

On Mon, Mar 15, 2021 at 4:10 PM Herbert Xu <herbert@...dor.apana.org.au> wrote:
>
> The quoting on "!" doesn't help I'm afraid.  Even though [ is a
> built-in it is not allowed to look at the quoting because it's
> supposed to behave in the same way whether you get the builtin [
> or the one from /usr/bin.
>
> So when it gets the expression the quoting on the "!" has already
> been removed.

Oh Gods, that's truly disgusting.

But I guess from a historical perspective, it actually makes a nasty
kind of horrible sense.

What a crock. Oh well. We had the workaround already, so it's not like
this causes any heartache aside from "shell is even worse than most
people can imagine".

             Linus