Message-ID: <4ACCA44B.3070706@linux.intel.com>
Date: Wed, 07 Oct 2009 07:23:07 -0700
From: Arjan van de Ven <arjan@linux.intel.com>
User-Agent: Thunderbird 2.0.0.23 (Windows/20090812)
MIME-Version: 1.0
To: Andreas Mohr <andi@lisas.de>
CC: linux-kernel@vger.kernel.org, Adam Belay <abelay@novell.com>,
       linux-acpi@vger.kernel.org
Subject: Re: 2.6.32-rc3: floating-point build failure (undefined reference
 to	`__udivdi3' in menu governor)
References: <20091007104125.GA1449@rhlx01.hs-esslingen.de>
In-Reply-To: <20091007104125.GA1449@rhlx01.hs-esslingen.de>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1159
Lines: 29

Andreas Mohr wrote:
> Hi,
> 
> didn't find any report about this, so...
> 
>   LD      .tmp_vmlinux1
> drivers/built-in.o(.text+0xd85a1): In function `menu_select':
> drivers/cpuidle/governors/menu.c:212: undefined reference to `__udivdi3'
> make: *** [.tmp_vmlinux1] Error 1
> 
> # gcc -v
> Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2.3/specs
> Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --host=i386-redhat-linux
> Thread model: posix
> gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-49)

seems you're the only user of this left.

it's not floating point but a 64 bit division.
The only one I can imagine is the one on line 213

looking at it, can you try sticking (u32) at the end of line 212; that multiply is not very likely to exceed 32 bits


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/