address access out of the process space!

address access out of the process space!

Post by zhhhuan » Fri, 17 Oct 2003 17:29:32


Hi!

I would like to know in Embeded Linux, is it possible for a process to
access a buffer out of its own space? The starting address of this
buffer could be obtained by IPC. Will the OS or processor prohibit
such data access in Linux?

BRs, // Charlie
 
 
 

address access out of the process space!

Post by eventheli » Sat, 01 Nov 2003 13:22:55

You can declare shared memory between different processes.

It might be better to send the data via an IPC message. Working
with shared memory is very error prone.

Sandeep
http://www.yqcomputer.com/
EventStudio 2.0 - System Architecture Design CASE Tool

 
 
 

address access out of the process space!

Post by Joe Gwin » Sun, 02 Nov 2003 08:32:45

In article < XXXX@XXXXX.COM >,



But is a factor of ten faster than IPC messages. Classic tradeoff.

Joe Gwinn