Re: kernel .text and .rodata

To: Masao Uebayashi <uebayasi%gmail.com@localhost>
Subject: Re: kernel .text and .rodata
From: Matt Thomas <matt%3am-software.com@localhost>
Date: Wed, 5 Nov 2014 23:44:50 -0800

> On Nov 5, 2014, at 9:33 PM, Masao Uebayashi <uebayasi%gmail.com@localhost> wrote:
> 
> On Thu, Nov 6, 2014 at 1:54 PM, Matt Thomas <matt%3am-software.com@localhost> wrote:
>>> There are XN for arm, NX for x86.  Seems not widely used yet.
>> 
>> Used on arm now. :)
> 
> .rodata is set as XN, right?

Since all of memory  is usually direct-mapped these days, the 16MB 
supersection that holds the kernel text doesn't have XN even though
it's RW.

Follow-Ups:
- Re: kernel .text and .rodata
  - From: Masao Uebayashi

References:
- Re: kernel .text and .rodata
  - From: Matt Thomas
- Re: kernel .text and .rodata
  - From: Izumi Tsutsui
- Re: kernel .text and .rodata
  - From: Masao Uebayashi
- Re: kernel .text and .rodata
  - From: Dennis Ferguson
- Re: kernel .text and .rodata
  - From: Matt Thomas
- Re: kernel .text and .rodata
  - From: Masao Uebayashi
- Re: kernel .text and .rodata
  - From: Masao Uebayashi
- Re: kernel .text and .rodata
  - From: Matt Thomas
- Re: kernel .text and .rodata
  - From: Masao Uebayashi

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