From: Szabolcs Nagy <nsz@port70.net>
Date: Wed, 23 Jan 2019 20:50:55 +0000 (+0000)
Subject: sys/prctl.h: add PR_SPEC_INDIRECT_BRANCH from linux v4.20
X-Git-Tag: v1.1.22~25
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=13c73da72f4c0926c82ce46964afc40c41cc7025;p=oweals%2Fmusl.git

sys/prctl.h: add PR_SPEC_INDIRECT_BRANCH from linux v4.20

prctls to allow per task control of indirect branch speculation on x86.

added in linux commit 9137bb27e60e554dab694eafa4cca241fa3a694f
---

diff --git a/include/sys/prctl.h b/include/sys/prctl.h
index af76408c..07a3490b 100644
--- a/include/sys/prctl.h
+++ b/include/sys/prctl.h
@@ -139,6 +139,7 @@ struct prctl_mm_map {
 #define PR_GET_SPECULATION_CTRL 52
 #define PR_SET_SPECULATION_CTRL 53
 #define PR_SPEC_STORE_BYPASS 0
+#define PR_SPEC_INDIRECT_BRANCH 1
 #define PR_SPEC_NOT_AFFECTED 0
 #define PR_SPEC_PRCTL (1UL << 0)
 #define PR_SPEC_ENABLE (1UL << 1)