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Re: undefined reference to `__multi3' when building with gcc 7.x

To: James Hogan <>
Subject: Re: undefined reference to `__multi3' when building with gcc 7.x
From: Thomas Petazzoni <>
Date: Wed, 6 Dec 2017 08:50:34 +0100
Cc: Ralf Baechle <>, <>, "Waldemar Brodkorb" <>, Florian Fainelli <>
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References: <20170803225547.6caa602b@windsurf.lan> <20171203105631.5232445a@windsurf.lan> <>

On Tue, 5 Dec 2017 23:49:24 +0000, James Hogan wrote:

> > I'm still facing this problem. There was a lengthy thread about it back
> > in August when I reported the problem, but then it calmed down, with no
> > real solution proposed.
> > 
> > Are there plans to fix this at some point?  
> I recently fixed a similar issue in 64r6[el]_defconfig, but its not the
> same as it applies to all gcc versions on mips64r6. Given Ralf appears
> to be busy I'll take a look.

Thanks a lot. If you need some help to reproduce the problem, let me
know, I can provide simple instructions to produce it.

Best regards,

Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering

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