linux-kernel - [PATCH] Makefile: disallow data races on gcc-10 as well

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200317000718.177637-1-slyfox@gentoo.org>
Date:   Tue, 17 Mar 2020 00:07:18 +0000
From:   Sergei Trofimovich <slyfox@...too.org>
To:     linux-kernel@...r.kernel.org
Cc:     Sergei Trofimovich <slyfox@...too.org>,
        Jiri Kosina <jkosina@...e.cz>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        linux-kbuild@...r.kernel.org
Subject: [PATCH] Makefile: disallow data races on gcc-10 as well

gcc-10 will rename --param=allow-store-data-races=0
to -fno-allow-store-data-races.

The flag change happened at https://gcc.gnu.org/PR92046.

CC: Jiri Kosina <jkosina@...e.cz>
CC: Masahiro Yamada <masahiroy@...nel.org>
CC: Michal Marek <michal.lkml@...kovi.net>
CC: linux-kbuild@...r.kernel.org
Signed-off-by: Sergei Trofimovich <slyfox@...too.org>
---
 Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Makefile b/Makefile
index 171f2b004c8a..9696eb2cd5a1 100644
--- a/Makefile
+++ b/Makefile
@@ -714,6 +714,7 @@ endif
 
 # Tell gcc to never replace conditional load with a non-conditional one
 KBUILD_CFLAGS	+= $(call cc-option,--param=allow-store-data-races=0)
+KBUILD_CFLAGS	+= $(call cc-option,-fno-allow-store-data-races)
 
 include scripts/Makefile.kcov
 include scripts/Makefile.gcc-plugins
-- 
2.25.1