equivalent of MAP_32BIT

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#120

From: Justin Cormack
Date: Sun, 26 May 2013 15:11

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I have been informed that there might be an undocumented ability to
get mmap to return addresses in the lower 4G of address space on a 64
bit machine by passing ~(unsigned)0 as the first parameter (or
(1<<31)-1 for 2GB). Is this correct? Or is it possibley to use
netbsd32_mmap()? Linux and some other OSs support a MAP_32BIT flag to
achieve this, looking for a way to port some code to NetBSD that
requires this.

Thanks

Justin

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From: Justin Cormack <justin@specialbusservice.com>
Newsgroups: fa.netbsd.tech.kern
Subject: equivalent of MAP_32BIT
Date: Sun, 26 May 2013 15:11:14 UTC
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