linux-kernel - Re: [m68k] in modpost: "strlen" [iscsi_target

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Date:	Mon, 2 Jan 2012 00:19:44 +0000 (UTC)
From:	Thorsten Glaser <tg@...bsd.de>
To:	Jonathan Nieder <jrnieder@...il.com>
cc:	Nicholas Bellinger <nab@...ux-iscsi.org>,
	Greg Ungerer <gerg@...inux.org>, linux-kernel@...r.kernel.org,
	linux-m68k@...r.kernel.org, target-devel@...r.kernel.org
Subject: Re: [m68k] in modpost: "strlen" [iscsi_target_mod.ko] undefined!
 (and others)

Jonathan Nieder dixit:

>Makefile instead of arch/m68k/Makefile.  If others agree, some patches
>for the x86 string functions to get the optimizations back could
>follow, leaving everyone happy.
[…]
>    Even with -ffreestanding, it's still possilble to explicitely use a gcc
>    builtin if desired.

Just call them, like this:

tg@...o:~/Xl/linux-2.6-3.2~rc7 $ fgrep -A 3 "define strcpy" arch/m68k/include/asm/string.h
#define strcpy(d, s)    (__builtin_constant_p(s) &&     \
                         __builtin_strlen(s) <= 32 ?    \
                         __builtin_strcpy(d, s) :       \
                         __kernel_strcpy(d, s))

Of course, the parameters when to call which may differ.
(The choice about being a hosted environment is not just
about having libc-like functions available.)

bye,
//mirabilos
-- 
Solange man keine schmutzigen Tricks macht, und ich meine *wirklich*
schmutzige Tricks, wie bei einer doppelt verketteten Liste beide
Pointer XORen und in nur einem Word speichern, funktioniert Boehm ganz
hervorragend.		-- Andreas Bogk über boehm-gc in d.a.s.r
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