[PATCH] MPX and CET changes in release notes

[PATCH] MPX and CET changes in release notes

[Tsimbalist, Igor V]

MPX is going to be deprecated in gcc-8. Control-flow protection support is in gcc-8.
Reflect these in Release Notes for gcc-8.

Ok for trunk?

Igor


Index: changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-8/changes.html,v
retrieving revision 1.36
diff -r1.36 changes.html
34a35,38
>   <li>
>     The MPX extensions to the C and C++ languages have been deprecated and
>     will be removed in a future release.
>   </li>
43a48,56
>   <li>
>     A new option <code>-fcf-protection=[full|branch|return|none]</code> is
>     introduced to perform a code instrumentation to increase program security by
>     checking that target addresses of control-flow transfer instructions (such as
>     indirect function call, function return, indirect jump) are valid. Currently
>     the instrumentation is supported on x86 GNU/Linux target only. See, the user
>     guide for further information about the option syntax and section "New Targets
>     and Target Specific Improvements" for IA-32/x86-64 for more details.
>   </li>
402a416,421
>   <li>
>     GCC now supports the Intel Control-flow Enforcement Technology (CET)
>     extension through <code>-mibt, -mshstk, -mcet</code> options. One of these
>     options has to accompany the <code>-fcf-protection</code> option to enable
>     the code instrumentation for control-flow protection.
>   </li>

Igor

Re: [PATCH] MPX and CET changes in release notes

[Gerald Pfeifer]

Hi Igor,

On Wed, 14 Feb 2018, Tsimbalist, Igor V wrote:
> MPX is going to be deprecated in gcc-8. Control-flow protection support 
> is in gcc-8. Reflect these in Release Notes for gcc-8.

thanks for this update.  Only some minor changes, then this is
good to go.

>>   <li>
>>     A new option <code>-fcf-protection=[full|branch|return|none]</code> is
>>     introduced to perform a code instrumentation to increase program security by

"performs code instrumentation" (omit "a")

>>     checking that target addresses of control-flow transfer instructions (such as
>>     indirect function call, function return, indirect jump) are valid. Currently
>>     the instrumentation is supported on x86 GNU/Linux target only.

"on x86 GNU/Linux targets" (since there are several such as i586, 
i686,...).

>>     See, the user

No comma.

>>   <li>
>>     GCC now supports the Intel Control-flow Enforcement Technology (CET)
>>     extension through <code>-mibt, -mshstk, -mcet</code> options. One of these

"...through the <code>-mibt</code>, <code>-mshstk</code>, and 
<code>-mcet</code> options"


Gerald