Re: [RFC, PATCH, v3.9] default exported asm symbols to zero
- To: Arnd Bergmann <arnd@arndb.de>
- Cc: Linus Torvalds <torvalds@linux-foundation.org>, Adam Borowski <kilobyte@angband.pl>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>, Michal Marek <mmarek@suse.com>, Ben Hutchings <ben@decadent.org.uk>, Debian kernel maintainers <debian-kernel@lists.debian.org>, "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>, Ingo Molnar <mingo@kernel.org>, Nicholas Piggin <npiggin@gmail.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Alan Modra <amodra@gmail.com>
- Subject: Re: [RFC, PATCH, v3.9] default exported asm symbols to zero
- From: Geert Uytterhoeven <geert@linux-m68k.org>
- Date: Fri, 2 Dec 2016 13:59:15 +0100
- Message-id: <[🔎] CAMuHMdUMdxKHY0O=fVZgZ9Gtp7zvm=F2HR=AACYDM=8c7NpFUQ@mail.gmail.com>
- In-reply-to: <8452191.39CeLIHTBT@wuerfel>
- References: <20161129131922.GA31466@angband.pl> <[🔎] CA+55aFxg_s8k1LBmsXjpVYw=BKh8sNEuL3n6MhzZGTuUPKMOwg@mail.gmail.com> <14455987.OWjnZpEEup@wuerfel> <8452191.39CeLIHTBT@wuerfel>
On Fri, Dec 2, 2016 at 1:40 PM, Arnd Bergmann <arnd@arndb.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@linux-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
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