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 31234f2a8cbe28f1114934fe921d0bf98674d1b3..0ab3c44a441b9199d489af06a81d17122fd22ed2 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 6e1fb2b2ecc750ee4898240d1421d985888cc096..35b6025d16f1e712203873269a2de21aaf197741 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 8aa7910510299b0dd6e10190209c330285de2449..800373103bc6f08e2ede5d8ca450c3c7ebdea286 100644 (file)
--- a/arch/arm/vdso/Makefile
+++ b/arch/arm/vdso/Makefile
@@ -22,6 +22,7 @@ CFLAGS_vgettimeofday.o = -O2
 
 # Disable gcov profiling for VDSO code
 GCOV_PROFILE := n
+UBSAN_SANITIZE := n
 
 # Force dependency
 $(obj)/vdso.o : $(obj)/vdso.so