Horton

Re: [HACKERS] mmap and MAP_ANON

Hannu Krosing <hannu@trust.ee>

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From: Hannu Krosing <hannu@trust.ee>
To: pgsql-hackers@hub.org
Cc: Bruce Momjian <maillist@candle.pha.pa.us>
Date: 1998-05-12T10:19:26Z
Lists: pgsql-hackers 
ocie@paracel.com wrote:
> 
> Bruce Momjian wrote:
> >
> > Would people tell me what platforms do NOT support the MAP_ANON flag to
> > the mmap() system call?  You should find it in the mmap() manual page.
> 
> Doesn't seem to appear in Linux (2.0.30 kernel).  As another poster
> commented, /dev/zero can be mapped for anonymous memory.

although 'man mmap' does not say it, it is present in sys/mman.h on 
linux (at least 2.0.33)

it is NOT present in Solaris x86 v.2.6

it is NOT present in SINIX v5.42 (UNIX(r) System V Release 4.1)

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Hannu Krosing