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Message-Id: <20200604134957.505389-6-alex.popov@linux.com>
Date: Thu, 4 Jun 2020 16:49:57 +0300
From: Alexander Popov <alex.popov@...ux.com>
To: Kees Cook <keescook@...omium.org>,
Emese Revfy <re.emese@...il.com>,
Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
Masahiro Yamada <masahiroy@...nel.org>,
Michal Marek <michal.lkml@...kovi.net>,
Andrew Morton <akpm@...ux-foundation.org>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Thiago Jung Bauermann <bauerman@...ux.ibm.com>,
Luis Chamberlain <mcgrof@...nel.org>,
Jessica Yu <jeyu@...nel.org>,
Sven Schnelle <svens@...ckframe.org>,
Iurii Zaikin <yzaikin@...gle.com>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>,
Vincenzo Frascino <vincenzo.frascino@....com>,
Thomas Gleixner <tglx@...utronix.de>,
Peter Collingbourne <pcc@...gle.com>,
Naohiro Aota <naohiro.aota@....com>,
Alexander Monakov <amonakov@...ras.ru>,
Mathias Krause <minipli@...glemail.com>,
PaX Team <pageexec@...email.hu>,
Brad Spengler <spender@...ecurity.net>,
Laura Abbott <labbott@...hat.com>,
Florian Weimer <fweimer@...hat.com>,
Alexander Popov <alex.popov@...ux.com>,
kernel-hardening@...ts.openwall.com,
linux-kbuild@...r.kernel.org,
x86@...nel.org,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
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Cc: notify@...nel.org
Subject: [PATCH 5/5] gcc-plugins/stackleak: Don't instrument vgettimeofday.c in arm64 VDSO
Don't try instrumenting functions in arch/arm64/kernel/vdso/vgettimeofday.c.
Otherwise that can cause issues if the cleanup pass of stackleak gcc plugin
is disabled.
Signed-off-by: Alexander Popov <alex.popov@...ux.com>
---
arch/arm64/kernel/vdso/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile
index 3862cad2410c..9b84cafbd2da 100644
--- a/arch/arm64/kernel/vdso/Makefile
+++ b/arch/arm64/kernel/vdso/Makefile
@@ -32,7 +32,8 @@ UBSAN_SANITIZE := n
OBJECT_FILES_NON_STANDARD := y
KCOV_INSTRUMENT := n
-CFLAGS_vgettimeofday.o = -O2 -mcmodel=tiny -fasynchronous-unwind-tables
+CFLAGS_vgettimeofday.o = -O2 -mcmodel=tiny -fasynchronous-unwind-tables \
+ $(DISABLE_STACKLEAK_PLUGIN)
ifneq ($(c-gettimeofday-y),)
CFLAGS_vgettimeofday.o += -include $(c-gettimeofday-y)
--
2.25.2
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