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Re: io.h doesn't get installed by target "headers_install" for mips

To: Dok Sander <doksander@yahoo.com>
Subject: Re: io.h doesn't get installed by target "headers_install" for mips
From: David Daney <ddaney@caviumnetworks.com>
Date: Wed, 09 Sep 2009 11:17:23 -0700
Cc: linux-kernel@vger.kernel.org, linux-mips <linux-mips@linux-mips.org>
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Dok Sander wrote:
Hi,

 I noticed the absence of the header io.h while trying to build(cross-compile, host 
i686-pc-linux-gnu) a software(lm-sensors-3.1.1, wants io.h in /sys) for mips. I can find 
io.h for mips in arch/mips/asm/include/{,sn/} However, io.h doesn't get installed when i 
do "make ARCH=mips headers_install" on linux 2.6.30.6

 According to someone on the eglibc mailing list, linux should provide io.h for 
mips. Is this true?


I don't think so (for two reasons):

1) The things in /usr/include/sys are provided by libc not the kernel.

2) MIPS doesn't have I/O ports, so all the functions in sys/io.h on an x86 are undefined for MIPS.

David Daney


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