linux-kernel - from where comes "_

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Message-ID: <Pine.LNX.4.64.0707211516480.6972@localhost.localdomain>
Date:	Sat, 21 Jul 2007 15:21:25 -0400 (EDT)
From:	"Robert P. J. Day" <rpjday@...dspring.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: from where comes "__moddi3"?

  again, probably displaying my abject ignorance, but i wrote a
trivial module that tries to "var % 15", and i get:

  WARNING: "__moddi3" undefined!

and, not surprisingly, when i try to insmod:

  insmod: error inserting 'seq.ko': -1 Unknown symbol in module

(using 16 rather than 15 works fine, as i assume that the modulus
call is simply replaced by an optimized  bitwise comparison.)

  so ... from where comes __moddi3?  i know there are places in the
kernel source tree that do non-power-of-2 moduli, and they work fine,
no?  thanks.

rday
-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

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