linux-kernel - Re: [RFC, PATCH, v3.9] default exported asm symbols to zero

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Message-ID: <CAMuHMdUMdxKHY0O=fVZgZ9Gtp7zvm=F2HR=AACYDM=8c7NpFUQ@mail.gmail.com>
Date:   Fri, 2 Dec 2016 13:59:15 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Adam Borowski <kilobyte@...band.pl>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Michal Marek <mmarek@...e.com>,
        Ben Hutchings <ben@...adent.org.uk>,
        Debian kernel maintainers <debian-kernel@...ts.debian.org>,
        "linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Nicholas Piggin <npiggin@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Alan Modra <amodra@...il.com>
Subject: Re: [RFC, PATCH, v3.9] default exported asm symbols to zero

On Fri, Dec 2, 2016 at 1:40 PM, Arnd Bergmann <arnd@...db.de> wrote:
> With binutils-2.16 and before, a weak missing symbol was kept during the

2.26?

> final link, and a missing CRC for an export would lead to that CRC
> being treated as zero implicitly. With binutils-2.17, the crc

2.27?

> symbol gets dropped, and any module trying to use it will fail to
> load.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds