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From:   Florian Fainelli <f.fainelli@gmail.com>
To:     linux-arm-kernel@lists.infradead.org
Cc:     bcm-kernel-feedback-list@broadcom.com,
        Andrey Ryabinin <ryabinin@virtuozzo.com>,
        Abbott Liu <liuwenliang@huawei.com>,
        Florian Fainelli <f.fainelli@gmail.com>, glider@google.com,
        dvyukov@google.com, corbet@lwn.net, linux@armlinux.org.uk,
        christoffer.dall@arm.com, marc.zyngier@arm.com, arnd@arndb.de,
        nico@fluxnic.net, vladimir.murzin@arm.com, keescook@chromium.org,
        jinb.park7@gmail.com, alexandre.belloni@bootlin.com,
        ard.biesheuvel@linaro.org, daniel.lezcano@linaro.org,
        pombredanne@nexb.com, rob@landley.net, gregkh@linuxfoundation.org,
        akpm@linux-foundation.org, mark.rutland@arm.com,
        catalin.marinas@arm.com, yamada.masahiro@socionext.com,
        tglx@linutronix.de, thgarnie@google.com, dhowells@redhat.com,
        geert@linux-m68k.org, andre.przywara@arm.com,
        julien.thierry@arm.com, drjones@redhat.com, philip@cog.systems,
        mhocko@suse.com, kirill.shutemov@linux.intel.com,
        kasan-dev@googlegroups.com, linux-doc@vger.kernel.org,
        linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
        ryabinin.a.a@gmail.com
Subject: [PATCH v6 6/6] ARM: Enable KASan for arm
Date:   Mon, 17 Jun 2019 15:11:34 -0700
Message-Id: <20190617221134.9930-7-f.fainelli@gmail.com>
In-Reply-To: <20190617221134.9930-1-f.fainelli@gmail.com>
References: <20190617221134.9930-1-f.fainelli@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Andrey Ryabinin <ryabinin@virtuozzo.com>

This patch enable kernel address sanitizer for ARM.

Acked-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Abbott Liu <liuwenliang@huawei.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 Documentation/dev-tools/kasan.rst | 4 ++--
 arch/arm/Kconfig                  | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index b72d07d70239..a9cb1feec0c1 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -21,8 +21,8 @@ global variables yet.
 
 Tag-based KASAN is only supported in Clang and requires version 7.0.0 or later.
 
-Currently generic KASAN is supported for the x86_64, arm64, xtensa and s390
-architectures, and tag-based KASAN is supported only for arm64.
+Currently generic KASAN is supported for the x86_64, arm, arm64, xtensa and
+s390 architectures, and tag-based KASAN is supported only for arm64.
 
 Usage
 -----
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 8869742a85df..5c98431ddaea 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -59,6 +59,7 @@ config ARM
 	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
 	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
 	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
+	select HAVE_ARCH_KASAN if MMU
 	select HAVE_ARCH_MMAP_RND_BITS if MMU
 	select HAVE_ARCH_SECCOMP_FILTER if AEABI && !OABI_COMPAT
 	select HAVE_ARCH_THREAD_STRUCT_WHITELIST
-- 
2.17.1