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From: Timur Tabi <timur@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Building for da830 fails
Date: Fri, 07 May 2010 10:30:32 -0500	[thread overview]
Message-ID: <4BE43218.2060209@freescale.com> (raw)
In-Reply-To: <4BE42FE9.3070208@psyent.com>

Scott McNutt wrote:
> lib/libgeneric.a(display_options.o): In function `print_size':
> /home/smcnutt/27xx/u-boot.git/lib/display_options.c:66: undefined 
> reference to `__udivdi3'
> /home/smcnutt/27xx/u-boot.git/lib/display_options.c:69: undefined 
> reference to `__umoddi3'
> /home/smcnutt/27xx/u-boot.git/lib/display_options.c:70: undefined 
> reference to `__udivdi3'

Man, I knew ARM sucked, but I didn't know it was this bad :-)

I was going to suggestion replacing the division operations with calls to
lldiv(), but we're actually doing a 64-by-64 bit division here:

n = size / d;

which means that in order to support support printing 64-bit numbers on ARM,
we might need to completely rewrite print_size() to avoid division on 64-bit
numbers.

Wolfgang, do you have any suggestions?

-- 
Timur Tabi
Linux kernel developer at Freescale

  reply	other threads:[~2010-05-07 15:30 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-07 11:57 [U-Boot] Building for da830 fails Sudhakar Rajashekhara
2010-05-07 14:14 ` Nick Thompson
2010-05-07 15:02   ` Nick Thompson
2010-05-07 15:09     ` Timur Tabi
2010-05-10 21:03       ` Wolfgang Denk
2010-05-07 15:14     ` Timur Tabi
2010-05-07 15:10   ` Wolfgang Denk
2010-05-07 15:21     ` Scott McNutt
2010-05-07 15:30       ` Timur Tabi [this message]
2010-05-10 10:39         ` Nick Thompson
2010-05-10 21:17         ` Wolfgang Denk
2010-05-11  8:59           ` Nick Thompson
2010-05-11 10:39             ` Wolfgang Denk
2010-05-11 11:30               ` Nick Thompson
2010-05-11 12:39           ` Scott McNutt

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