From: H.J. Lu <hjl.tools@gmail.com>
Date: Thu, 21 Oct 2021 16:45:14 +0000 (-0700)
Subject: x86: Document -fcf-protection requires i686 or newer
X-Git-Tag: releases/gcc-11.3.0~714
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e74336df42fa36244d576dd155d7e2e2c42bc3a0;p=thirdparty%2Fgcc.git

x86: Document -fcf-protection requires i686 or newer

	PR target/98667
	* doc/invoke.texi: Document -fcf-protection requires i686 or
	new.

(cherry picked from commit 1373066a46d8d47abd97e46a005aef3b3dbfe94a)
---

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 93049d7a22f0..2eb874a7176d 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -15123,7 +15123,8 @@ which functions and calls should be skipped from instrumentation
 (@pxref{Function Attributes}).
 
 Currently the x86 GNU/Linux target provides an implementation based
-on Intel Control-flow Enforcement Technology (CET).
+on Intel Control-flow Enforcement Technology (CET) which works for
+i686 processor or newer.
 
 @item -fstack-protector
 @opindex fstack-protector