gcc-12: Mention -mharden-sls= and -mindirect-branch-cs-prefix
Commit Message
---
htdocs/gcc-12/changes.html | 6 ++++++
1 file changed, 6 insertions(+)
Comments
On Tue, 1 Feb 2022, H.J. Lu wrote:
LGTM.
> ---
> htdocs/gcc-12/changes.html | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> 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>
> instructions.
> + <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>.
> </li>
> </ul>
>
@@ -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>
instructions.
+ <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>.
</li>
</ul>