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List: freebsd-hackers
Subject: Re: I want to write a 64-bit version of the driver, the MAKEFILE on how to write?
From: John Baldwin <jhb () freebsd ! org>
Date: 2012-03-26 14:21:42
Message-ID: 201203261021.42524.jhb () freebsd ! org
[Download RAW message or body]
On Sunday, March 25, 2012 10:38:17 pm cz li wrote:
> I want to write a 64-bit version of the driver, the MAKEFILE on how to
> write?I can compile 64-bit version of the driver in the 32 system?
> Thank you!
Drivers generally use the same makefiles (if you mean a module makefile) for
both i386 and amd64. If you want to cross-build a driver you will need a
cross toolchain (e.g. 'make toolchain TARGET=amd64'). You can then either
cross-build a kernel whose config includes your module, or you can do this to
cross-build just your module:
% cd /path/to/world
% make buildenv TARGET=amd64
% cd sys/modules/<foo>
% make
--
John Baldwin
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