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Subject[PATCH] ARM: ubsan: select ARCH_HAS_UBSAN_SANITIZE_ALL
Date
From: Seung-Woo Kim <sw0312.kim@samsung.com>

To enable UBSAN on ARM, this patch enables ARCH_HAS_UBSAN_SANITIZE_ALL
from arm confiuration. Basic kernel bootup test is passed on arm with
CONFIG_UBSAN_SANITIZE_ALL enabled.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
[florian: rebased against v6.0-rc7]
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
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 87badeae3181..c90aa58eab7f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -27,6 +27,7 @@ config ARM
select ARCH_HAVE_NMI_SAFE_CMPXCHG if CPU_V7 || CPU_V7M || CPU_V6K
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_KEEP_MEMBLOCK
+ select ARCH_HAS_UBSAN_SANITIZE_ALL
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_NO_SG_CHAIN if !ARM_HAS_SG_CHAIN
select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 41bcbb460fac..2cc2af13779e 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -27,6 +27,7 @@ KASAN_SANITIZE := n

# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
KCOV_INSTRUMENT := n
+UBSAN_SANITIZE := n

#
# Architecture dependencies
diff --git a/arch/arm/vdso/Makefile b/arch/arm/vdso/Makefile
index 8ca1c9f262a2..a7ec06ce3785 100644
--- a/arch/arm/vdso/Makefile
+++ b/arch/arm/vdso/Makefile
@@ -37,6 +37,7 @@ endif

# Disable gcov profiling for VDSO code
GCOV_PROFILE := n
+UBSAN_SANITIZE := n

# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
KCOV_INSTRUMENT := n
--
2.25.1
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