From: Hassan Naveed <hnaveed@xxxxxxxxxxxx> Select ARCH_HAS_UBSAN_SANITIZE_ALL in order to allow the user to enable CONFIG_UBSAN_SANITIZE_ALL and instrument the entire kernel for ubsan checks. We exclude the VDSO from this because its build doesn't include the __ubsan_handle_*() functions that the kernel proper defines in from lib/ubsan.c, and the VDSO would have no sane way to report errors even if it had definitions of these functions. Signed-off-by: Hassan Naveed <hnaveed@xxxxxxxxxxxx> Reviewed-by: Paul Burton <paul.burton@xxxxxxxx> --- arch/mips/Kconfig | 1 + arch/mips/vdso/Makefile | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 35511999156a..8418721bb3f9 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -7,6 +7,7 @@ config MIPS select ARCH_DISCARD_MEMBLOCK select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST + select ARCH_HAS_UBSAN_SANITIZE_ALL select ARCH_SUPPORTS_UPROBES select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_CMPXCHG_LOCKREF if 64BIT diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile index 34605ca21498..b0f2382b5671 100644 --- a/arch/mips/vdso/Makefile +++ b/arch/mips/vdso/Makefile @@ -50,6 +50,7 @@ VDSO_LDFLAGS := \ $(call cc-ldoption, -Wl$(comma)--build-id) GCOV_PROFILE := n +UBSAN_SANITIZE := n # # Shared build commands. -- 2.19.0
