Author: chandlerc
Date: Thu Mar 1 21:48:38 2018
New Revision: 326539
URL: http://llvm.org/viewvc/llvm-project?rev=326539&view=rev
Log:
Add some minimal release notes for retpoline support.
Modified:
llvm/branches/release_60/docs/ReleaseNotes.rst
Modified: llvm/branches/release_60/docs/ReleaseNotes.rst
URL:
http://llvm.org/viewvc/llvm-project/llvm/branches/release_60/docs/ReleaseNotes.rst?rev=326539&r1=326538&r2=326539&view=diff
==============================================================================
--- llvm/branches/release_60/docs/ReleaseNotes.rst (original)
+++ llvm/branches/release_60/docs/ReleaseNotes.rst Thu Mar 1 21:48:38 2018
@@ -42,6 +42,12 @@ Non-comprehensive list of changes in thi
* Preliminary support for Sanitizers and sibling features on X86(_64) NetBSD
(ASan, UBsan, TSan, MSan, SafeStack, libFuzzer).
+* Support for `retpolines <https://support.google.com/faqs/answer/7625886>`_
+ was added to help mitigate "branch target injection" (variant #2) of the
+ "Spectre" speculative side channels described by `Project Zero
+
<https://googleprojectzero.blogspot.com/2018/01/reading-privileged-memory-with-side.html>`_
+ and the `Spectre paper <https://spectreattack.com/spectre.pdf>`_.
+
Changes to the LLVM IR
----------------------
@@ -183,6 +189,10 @@ During this release the X86 target has:
* Improved documentation for SSE/AVX intrinsics in intrin.h header files.
+* Gained support for emitting `retpolines
+ <https://support.google.com/faqs/answer/7625886>`_, including automatic
+ insertion of the necessary thunks or using external thunks.
+
External Open Source Projects Using LLVM 6
==========================================
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