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Re: [PATCH][wwwdocs] Add Cortex-A53 erratum workaround note to AArch64 changes for 4.8
- From: Kyrill Tkachov <kyrylo dot tkachov at arm dot com>
- To: Gerald Pfeifer <gerald at pfeifer dot com>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Mon, 17 Nov 2014 11:42:02 +0000
- Subject: Re: [PATCH][wwwdocs] Add Cortex-A53 erratum workaround note to AArch64 changes for 4.8
- Authentication-results: sourceware.org; auth=none
- References: <54661A75 dot 4000600 at arm dot com> <alpine dot LSU dot 2 dot 11 dot 1411141630360 dot 3287 at tuna dot site>
On 14/11/14 15:31, Gerald Pfeifer wrote:
On Friday 2014-11-14 15:06, Kyrill Tkachov wrote:
Considering that the erratum workaround option was backported to 4.8,
I assume we'll need an item for that in the changes.html for that
branch?
Good point.
Yes. It will be good note note which minor release is the first
with this fix, though.
Makes sense. Here are the changes for the 4.9 and 4.8 changes.html pages.
Ok?
Thanks,
Kyrill
Gerald
Index: htdocs/gcc-4.8/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.8/changes.html,v
retrieving revision 1.128
diff -U 3 -r1.128 changes.html
--- htdocs/gcc-4.8/changes.html 31 Aug 2014 15:15:57 -0000 1.128
+++ htdocs/gcc-4.8/changes.html 14 Nov 2014 15:37:33 -0000
@@ -464,6 +464,11 @@
<li> The port provides initial support for the Cortex-A53 and the
Cortex-A57 processors with the command line options
<code>-mcpu=cortex-a53</code> and <code>-mcpu=cortex-a57</code>.</li>
+ <li> Starting with GCC 4.8.4 a workaround for the ARM Cortex-A53
+ erratum 835769 has been added and can be enabled by giving the
+ <code>-mfix-cortex-a53-835769</code> option.
+ Alternatively it can be enabled by default by configuring GCC with the
+ <code>--enable-fix-cortex-a53-835769</code> option.</li>
</ul>
<h3 id="arm">ARM</h3>Index: htdocs/gcc-4.9/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.9/changes.html,v
retrieving revision 1.81
diff -U 3 -r1.81 changes.html
--- htdocs/gcc-4.9/changes.html 30 Oct 2014 08:18:36 -0000 1.81
+++ htdocs/gcc-4.9/changes.html 14 Nov 2014 15:37:19 -0000
@@ -507,6 +507,12 @@
<li> A number of structural changes have been made to both the ARM
and AArch64 backends to facilitate improved code-generation.
</li>
+ <li> Starting with GCC 4.9.2 a workaround for the ARM Cortex-A53 erratum
+ 835769 has been added and can be enabled by giving the
+ <code>-mfix-cortex-a53-835769</code> option.
+ Alternatively it can be enabled by default by configuring GCC with the
+ <code>--enable-fix-cortex-a53-835769</code> option.
+ </li>
</ul>
<h3 id="arc">ARC</h3>