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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: Ralf Baechle <ralf@linux-mips.org>
Cc: Matthew Fortune <Matthew.Fortune@imgtec.com>,
	"linux-mips@linux-mips.org" <linux-mips@linux-mips.org>,
	Waldemar Brodkorb <wbx@openadk.org>
Subject: Re: undefined reference to `__multi3' when building with gcc 7.x
Date: Tue, 7 Nov 2017 18:39:15 +0100	[thread overview]
Message-ID: <20171107183915.7aa19ae9@windsurf> (raw)
In-Reply-To: <20170817221931.GB12588@linux-mips.org>

Hello,

On Fri, 18 Aug 2017 00:19:31 +0200, Ralf Baechle wrote:

> > As a workaround you may want to include a version of __multi3 in the kernel
> > until it is resolved.  
> 
> Yes, working on that.  This has been made harder by the fact that the
> implementation of __umulti3 is well hidden in the source :)  I now have
> functioning implementation of __multi3 but it's still too ugly to be
> committed to the kernel.
> 
> And while I agree it should be fixed in GCC at the same time the
> generated code while convoluted and unnecessarily slow appears to be
> correct so I think we should support this by adding a suitable __umulti3
> to the kernel code as you suggest.

Has there been some progress on this front? I'm willing to test patches
if needed.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

  parent reply	other threads:[~2017-11-07 17:39 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-03 20:55 undefined reference to `__multi3' when building with gcc 7.x Thomas Petazzoni
2017-08-04  0:05 ` Ralf Baechle
2017-08-04 15:19   ` Ralf Baechle
2017-08-04 15:41     ` Thomas Petazzoni
2017-08-04 22:25       ` Ralf Baechle
2017-08-05 11:56         ` Thomas Petazzoni
2017-08-07  8:34           ` Ralf Baechle
2017-08-13 20:46             ` Thomas Petazzoni
2017-08-17  7:15               ` Ralf Baechle
2017-08-17  8:49                 ` Matthew Fortune
2017-08-17 22:19                   ` Ralf Baechle
2017-10-07 19:22                     ` Thomas Petazzoni
2017-11-07 17:39                     ` Thomas Petazzoni [this message]
2017-08-17  1:01         ` Maciej W. Rozycki
2017-08-17  1:01           ` Maciej W. Rozycki
2017-12-03  9:56 ` Thomas Petazzoni
2017-12-05 23:49   ` James Hogan
2017-12-05 23:49     ` James Hogan
2017-12-06  7:50     ` Thomas Petazzoni
2017-12-06  7:50       ` Thomas Petazzoni
2017-12-07  7:20       ` [PATCH] MIPS: Implement __multi3 for GCC7 MIPS64r6 builds James Hogan
2017-12-08 23:52         ` Maciej W. Rozycki
2017-12-08 23:52           ` Maciej W. Rozycki
2017-12-09  7:15           ` James Hogan
2017-12-09  7:15             ` James Hogan
2017-12-27  8:31         ` Waldemar Brodkorb

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