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Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6?

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Hi Arnd,

On Fri, Dec 16, 2016 at 8:58 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Friday, December 16, 2016 4:54:33 PM CET Geert Uytterhoeven wrote:
>> On Fri, Dec 16, 2016 at 11:56 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>> > Specifically on ARM, going further makes things rather useless especially
>> > for build testing: with gcc-4.2, we lose support for ARMv7, EABI, and
>> > effectively ARMv6 (as it relies on EABI for building reliably). Also,
>> > the number of false-positive build warnings is so high that it is useless
>> > for finding actual bugs from the warnings.
>>
>> If you start with that activity now, there's indeed a massive amount of
>> warnings to look into.
>> However, I've been build testing various configs with m68k-linux-gnu-gcc-4.1.2
>> and looking at the compiler warnings for years, so I only have to look
>> at new warnings.
>
> What's the reason for sticking with gcc-4.1? Does this actually work better
> for you than a more recent version, or is it just whatever you installed
> when you started the build testing?

It's just the cross compiler I built .debs of a long time ago.
As long as it works, I see no reason to upgrade, especially as long as I see
warnings for bugs that no one else is seeing. But lately you started beating
me with newer gccs ;-)

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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[RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6? Arnd Bergmann <arnd@arndb.de> - 2016-12-16 12:10 +0100
  [PATCH 01/13] [HACK] gcc-4.5: avoid  link errors for unused function pointers Arnd Bergmann <arnd@arndb.de> - 2016-12-16 12:10 +0100
  Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6? Arnd Bergmann <arnd@arndb.de> - 2016-12-16 12:20 +0100
  Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6? Geert Uytterhoeven <geert@linux-m68k.org> - 2016-12-16 17:10 +0100
    Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6? Arnd Bergmann <arnd@arndb.de> - 2016-12-16 21:00 +0100
      Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6? Geert Uytterhoeven <geert@linux-m68k.org> - 2016-12-16 21:40 +0100
  Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6? Sebastian Andrzej Siewior <sebastian@breakpoint.cc> - 2016-12-16 18:10 +0100
    Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6? Arnd Bergmann <arnd@arndb.de> - 2016-12-16 23:10 +0100
      Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6? Sebastian Andrzej Siewior <sebastian@breakpoint.cc> - 2016-12-17 12:40 +0100
        Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6? Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-01-02 13:30 +0100
      Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6? Heiko Carstens <heiko.carstens@de.ibm.com> - 2016-12-20 11:00 +0100

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