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* gcc-wwwdocs branch master updated. 56a010aa69b8ffe2fa8b6b2032173259950064f3
@ 2022-02-02 13:05 H.J. Lu
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From: H.J. Lu @ 2022-02-02 13:05 UTC (permalink / raw)
  To: gcc-cvs-wwwdocs

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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.</p>
       x86 systems with SSE2 enabled. Without <code>{-mavx512fp16}</code>,
       all operations will be emulated in software and <code>float</code>
+  <li>Mitigation against straight line speculation (SLS) for function
+      return and indirect jump is supported via
+      <code>-mharden-sls=[none|all|return|indirect-jmp]</code>.
+  </li>
+  <li>Add CS prefix to call and jmp to indirect thunk with branch target
+      in r8-r15 registers via <code>-mindirect-branch-cs-prefix</code>.


Summary of changes:
 htdocs/gcc-12/changes.html | 6 ++++++
 1 file changed, 6 insertions(+)


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