From mboxrd@z Thu Jan 1 00:00:00 1970
Return-Path:
Received: by sourceware.org (Postfix, from userid 1039)
id 6DAC03858D1E; Wed, 2 Feb 2022 13:05:50 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6DAC03858D1E
To: gcc-cvs-wwwdocs@gcc.gnu.org
Subject: gcc-wwwdocs branch master updated.
56a010aa69b8ffe2fa8b6b2032173259950064f3
X-Git-Refname: refs/heads/master
X-Git-Reftype: branch
X-Git-Oldrev: 996afe17497b8c06f00c763bcf7fe2b971bb0f05
X-Git-Newrev: 56a010aa69b8ffe2fa8b6b2032173259950064f3
Message-Id: <20220202130550.6DAC03858D1E@sourceware.org>
Date: Wed, 2 Feb 2022 13:05:50 +0000 (GMT)
From: "H.J. Lu"
X-BeenThere: gcc-cvs-wwwdocs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-cvs-wwwdocs mailing list
List-Unsubscribe: ,
List-Archive:
List-Help:
List-Subscribe: ,
X-List-Received-Date: Wed, 02 Feb 2022 13:05:50 -0000
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "gcc-wwwdocs".
The branch, master has been updated
via 56a010aa69b8ffe2fa8b6b2032173259950064f3 (commit)
from 996afe17497b8c06f00c763bcf7fe2b971bb0f05 (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.
- Log -----------------------------------------------------------------
commit 56a010aa69b8ffe2fa8b6b2032173259950064f3
Author: H.J. Lu
Date: Tue Feb 1 08:56:30 2022 -0800
gcc-12: Mention -mharden-sls= and -mindirect-branch-cs-prefix
diff --git a/htdocs/gcc-12/changes.html b/htdocs/gcc-12/changes.html
index 2719b9d5..479bd6c5 100644
--- a/htdocs/gcc-12/changes.html
+++ b/htdocs/gcc-12/changes.html
@@ -387,6 +387,12 @@ a work-in-progress.
x86 systems with SSE2 enabled. Without {-mavx512fp16}
,
all operations will be emulated in software and float
instructions.
+ Mitigation against straight line speculation (SLS) for function
+ return and indirect jump is supported via
+ -mharden-sls=[none|all|return|indirect-jmp]
.
+
+ Add CS prefix to call and jmp to indirect thunk with branch target
+ in r8-r15 registers via -mindirect-branch-cs-prefix
.
-----------------------------------------------------------------------
Summary of changes:
htdocs/gcc-12/changes.html | 6 ++++++
1 file changed, 6 insertions(+)
hooks/post-receive
--
gcc-wwwdocs