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.
Signed-off-by: Seung-Woo Kim <sw0312....@samsung.com>
---
Because I tested only with specific soc board, so I am not sure the ubsan is
fine for all other cases. So, I send this patch as a RFC.
---
arch/arm/Kconfig | 1 +
arch/arm/boot/compressed/Makefile | 1 +
arch/arm/vdso/Makefile | 1 +
3 files changed, 3 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 90542db..3a9af80 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -7,6 +7,7 @@ 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 d50430c..883374f 100644
--- 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 59a8fa7..cb90e59 100644
--- 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
--
1.7.9.5
