SharedUnixLibrary and the System Heap

Alex Waugh alex at alexwaugh.com
Mon Mar 27 13:50:02 PST 2006


Matt Edgar <matt at stdevel.co.uk> wrote:

> We are looking at some tightening up of the memory protection in RISC OS 
>   and one of the possibilities is to protect the system heap against 
> user  mode accesses.

I'm glad to see such improvements are being considered.

> Unfortunately SUL does this, so protecting the heap would break a lot of 
> things.

Do you mean memory allocated by OS_Module 6, executing module code
from user mode, the module private word, or something else? Those are
the only things I can think of that may be accessed from user mode in
the SUL.

Alex

-- 
Alex Waugh                                           alex at alexwaugh.com

PHP, Roots, Subversion, WebJames and more from http://www.alexwaugh.com/




More information about the gcc mailing list