arm64: Add CONFIG_CC_STACKPROTECTOR

arm64 currently lacks support for -fstack-protector. Add
similar functionality to arm to detect stack corruption.

Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index a474de3..f865436 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -32,6 +32,7 @@ config ARM64
        select HAVE_ARCH_KGDB
        select HAVE_ARCH_TRACEHOOK
        select HAVE_C_RECORDMCOUNT
+       select HAVE_CC_STACKPROTECTOR
        select HAVE_DEBUG_BUGVERBOSE
        select HAVE_DEBUG_KMEMLEAK
        select HAVE_DMA_API_DEBUG

diff --cc arch/arm64/include/asm/stackprotector.h
Simple merge

diff --cc arch/arm64/kernel/process.c
Simple merge