arm: ubsan: select ARCH_HAS_UBSAN_SANITIZE_ALL

To enable UBSAN on arm, this patch enables ARCH_HAS_UBSAN_SANITIZE_ALL
from arm confiuration. Basic kernel booting is tested on arm kernel
enabled CONFIG_UBSAN_SANITIZE_ALL from Exynos5422 based Odroid-XU3
board.

Change-Id: I9480a9af713b88eff2a90df11f78e1feb97eac30
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 457d178..55e7fb3 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -6,6 +6,7 @@ config ARM
        select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
        select ARCH_HAVE_CUSTOM_GPIO_H
        select ARCH_HAS_GCOV_PROFILE_ALL
+       select ARCH_HAS_UBSAN_SANITIZE_ALL
        select ARCH_MIGHT_HAVE_PC_PARPORT
        select ARCH_SUPPORTS_ATOMIC_RMW
        select ARCH_USE_BUILTIN_BSWAP

diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 6e1fb2b..35b6025 100644 (file)
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -23,6 +23,7 @@ OBJS          += hyp-stub.o
 endif
 
 GCOV_PROFILE           := n
+UBSAN_SANITIZE         := n
 
 #
 # Architecture dependencies

diff --git a/arch/arm/vdso/Makefile b/arch/arm/vdso/Makefile
index 1160434..8e5dd87 100644 (file)
--- a/arch/arm/vdso/Makefile
+++ b/arch/arm/vdso/Makefile
@@ -28,6 +28,7 @@ CFLAGS_vgettimeofday.o = -O2
 
 # Disable gcov profiling for VDSO code
 GCOV_PROFILE := n
+UBSAN_SANITIZE := n
 
 # Force dependency
 $(obj)/vdso.o : $(obj)/vdso.so