From mboxrd@z Thu Jan  1 00:00:00 1970
From: Oren Laadan <orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
Subject: Re: [PATCH 1/1] cr: define CHECKPOINT_SUBTREE flag and sysctl
Date: Thu, 30 Apr 2009 11:40:14 -0400
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To: "Serge E. Hallyn" <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Cc: Linux Containers <containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org>, Alexey Dobriyan <adobriyan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
List-Id: containers.vger.kernel.org



Serge E. Hallyn wrote:
> Quoting Oren Laadan (orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org):
>> Hmmm... IIUC from the text above then:
>>
>> 	ptr = mmap(NULL, size, MMAP_EXEC | ... )
>> 	memcpy(ptr, src, size);
>> 	mremap(src, size, size, MREMAP_FIXED | ..., ptr);
> 
> What is src and size?

src is the address of a code section that you want to remap into anonymous
memory (to "release" the executable). size is its size. there may be more
than one section, of course.

> 
> Hmm, I guess you can get that from /proc/self/maps.
> 
> Cool.

:)

Oren.