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

From Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Newsgroups linux.kernel
Subject Re: [RFC] minimum gcc version for kernel: raise to gcc-4.3 or 4.6?
Date 2016-12-16 18:10 +0100
Message-ID <sP4b7-6vt-1@gated-at.bofh.it> (permalink)
References <sOYp3-2rU-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 2016-12-16 11:56:21 [+0100], Arnd Bergmann wrote:
> The original gcc-4.3 release was in early 2008. If we decide to still
> support that, we probably want the first 10 quirks in this series,
> while gcc-4.6 (released in 2011) requires none of them.

It this min gcc thingy ARM only?
The current minimium (documented) is gcc v3.2. With the -fno-PIE patches
I was going to raise the bar to at least v3.4 but did not get around to
it yet. hpa said that everything < 3.4 is broken on x86 [0].
Gert is getting code compiled on gcc v4.1 not sure if it is some kind of
gcc limitation or just for fun.
Unless people are stuck with some enterprise distro I don't see a reason
why one should not try a gcc-4.6 which is 5 years old. I had problems to
verify that the current kernel compiles with gcc v3.2 on x86 (it did
with a bunch of warnings with gcc 3.4 and booted).

[0] https://lkml.kernel.org/r/63c356a8-58a3-bc7e-88db-5c8071db15e1@zytor.com
> 	Arnd

Sebastian

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Thread

[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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