Subject: Re: non-executable pages
To: Rui Paulo <firstname.lastname@example.org>
From: Chuck Silvers <email@example.com>
Date: 05/15/2004 06:53:06
On Fri, May 14, 2004 at 08:21:25PM +0000, Rui Paulo wrote:
> On Fri, 14 May 2004 08:56:08 -0700
> Chuck Silvers <firstname.lastname@example.org> wrote:
> > other platforms have fewer restrictions, with the best ones being
> > amd64, sparc64, powerpc(ibm4xx) and alpha, all of which allow each
> > page
> > to be independently executable or not.
> What about sparc ? There are any restrictions ?
for sun4 and sun4c systems, the hardware does not differentiate execute vs.
data access, so anything readable is executable.
for sun4m and sun4d systems, the hardware does support execute permission,
with each page being independently executable or not.