2 Commits

Author	SHA1	Message	Date
Keith Randall	1565780671	[release-branch.go1.19] cmd/compile: turn off jump tables when spectre retpolines are on ... Fixes #57100 Change-Id: I6ab659abbca1ae0ac8710674d39aec116fab0baa Reviewed-on: https://go-review.googlesource.com/c/go/+/455336 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> (cherry picked from commit 1eb0465fa596a2d6e9c1a632499989544f0d7e68) Reviewed-on: https://go-review.googlesource.com/c/go/+/455416 Reviewed-by: Michael Pratt <mpratt@google.com>	2022-12-09 20:02:17 +00:00
Russ Cox	fc8a6336d1	cmd/asm, cmd/compile, runtime: add -spectre=ret mode ... This commit extends the -spectre flag to cmd/asm and adds a new Spectre mitigation mode "ret", which enables the use of retpolines. Retpolines prevent speculation about the target of an indirect jump or call and are described in more detail here: https://support.google.com/faqs/answer/7625886 Change-Id: I4f2cb982fa94e44d91e49bd98974fd125619c93a Reviewed-on: https://go-review.googlesource.com/c/go/+/222661 Reviewed-by: Keith Randall <khr@golang.org>	2020-03-13 19:05:54 +00:00