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From: Stafford Horne <shorne@gmail.com>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
	kbuild test robot <lkp@intel.com>,
	"kbuild-all@01.org" <kbuild-all@01.org>,
	Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
	openrisc@lists.librecores.org,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] openrisc: Define __kernel_size_t to suppress compiler warnings
Date: Wed, 21 Dec 2016 08:02:17 +0900	[thread overview]
Message-ID: <20161220230217.GJ2650@lianli.shorne-pla.net> (raw)
In-Reply-To: <871sx28bl0.fsf@linux-m68k.org>

Hi,

On Tue, Dec 20, 2016 at 11:44:43PM +0100, Andreas Schwab wrote:
> On Dez 20 2016, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> 
> > When I saw this patch, I was already a bit skeptical about it, but I noticed
> > other architectures (e.g. avr32) are doing the same, so I didn't reply.
> >
> > In my experience, "format '%zu' expects argument of type 'size_t', but
> > argument 3 has type 'unsigned int'" happens when using a compiler that
> > was not configured to use the correct type (should be unsigned long) for
> > size_t. Typically this happens when using a compiler not configured for
> > a Linux target.
> 
> 32-bit targets typically use unsigned int for size_t.  It is part of the
> ABI, so all compilers must agree.  Since or32 is a out-of-tree port, and
> gcc defaults to unsigned long for size_t, mismatches can happen if
> people are using incomplete patches.

Thanks,

To tell the truth I was skeptical of this patch as well.  But I figured I
could send out the patch and see what kind of feedback it would get.  I
was expecting compiler actually, but wasn't sure exactly where.

So this is the best feedback I could have expected.  Thanks.

I am using gcc with newlib 'or1k-elf-'.  I also have a musl, linux,
target compiler.  I will look into that.

-Stafford

  reply	other threads:[~2016-12-20 23:02 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-20 13:59 Stafford Horne
2016-12-20 20:22 ` kbuild test robot
2016-12-20 20:45   ` Geert Uytterhoeven
2016-12-20 22:44     ` Andreas Schwab
2016-12-20 23:02       ` Stafford Horne [this message]
2016-12-21  7:05       ` Geert Uytterhoeven
2016-12-21  4:06 ` kbuild test robot

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