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[PATCH] CET shouldn't be enabled in 32-bit run-time libraries by defualt

From: "Tsimbalist, Igor V" <igor dot v dot tsimbalist at intel dot com>
To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Cc: Jeff Law <law at redhat dot com>, "Tsimbalist, Igor V" <igor dot v dot tsimbalist at intel dot com>
Date: Wed, 14 Feb 2018 13:49:57 +0000
Subject: [PATCH] CET shouldn't be enabled in 32-bit run-time libraries by defualt
Authentication-results: sourceware.org; auth=none
Dlp-product: dlpe-windows
Dlp-reaction: no-action
Dlp-version: 11.0.0.116

ENDBR32 and RDSSPD are multi-byte NOPs on x86-64 processors and
newer x86 processors, starting Pentium Pro.  They are UD on older 32-bit
processors. Detect this at configure time and adjust the default value
for enable_cet. GCC will enable CET in 32-bit run-time libraries in any case
if --enable-cet is used to configure GCC.

OK for trunk?

Igor

Attachment: 0001-CET-shouldn-t-be-enabled-in-32-bit-run-time-librarie.patch
Description: 0001-CET-shouldn-t-be-enabled-in-32-bit-run-time-librarie.patch

Follow-Ups:
- Re: [PATCH] CET shouldn't be enabled in 32-bit run-time libraries by defualt
  - From: Jeff Law

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