linux-hardening - [PATCH AUTOSEL 4.19 01/10] gcc-plugins/structleak: add makefile var for disabling structleak

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Message-Id: <20211021002305.1129633-1-sashal@kernel.org>
Date:   Wed, 20 Oct 2021 20:22:56 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        David Gow <davidgow@...gle.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>, masahiroy@...nel.org,
        michal.lkml@...kovi.net, linux-hardening@...r.kernel.org,
        linux-kbuild@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 01/10] gcc-plugins/structleak: add makefile var for disabling structleak

From: Brendan Higgins <brendanhiggins@...gle.com>

[ Upstream commit 554afc3b9797511e3245864e32aebeb6abbab1e3 ]

KUnit and structleak don't play nice, so add a makefile variable for
enabling structleak when it complains.

Co-developed-by: Kees Cook <keescook@...omium.org>
Signed-off-by: Kees Cook <keescook@...omium.org>
Signed-off-by: Brendan Higgins <brendanhiggins@...gle.com>
Reviewed-by: David Gow <davidgow@...gle.com>
Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 scripts/Makefile.gcc-plugins | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins
index 0a482f341576..93ca13e4f8f9 100644
--- a/scripts/Makefile.gcc-plugins
+++ b/scripts/Makefile.gcc-plugins
@@ -17,6 +17,10 @@ gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE)	\
 		+= -fplugin-arg-structleak_plugin-verbose
 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL)	\
 		+= -fplugin-arg-structleak_plugin-byref-all
+ifdef CONFIG_GCC_PLUGIN_STRUCTLEAK
+    DISABLE_STRUCTLEAK_PLUGIN += -fplugin-arg-structleak_plugin-disable
+endif
+export DISABLE_STRUCTLEAK_PLUGIN
 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK)		\
 		+= -DSTRUCTLEAK_PLUGIN
 
-- 
2.33.0