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authorJisheng Zhang <jszhang@kernel.org>2021-08-05 00:30:59 +0800
committerPalmer Dabbelt <palmerdabbelt@google.com>2021-08-24 20:59:10 -0700
commit8341dcfbd8dda98a3b2836a421016f7d88e35b1c (patch)
treed97cb10a817f411d3da33f0d54b80a253ef04602 /arch/riscv/kernel
parent7f85b04b08ca264923358e2c4e93422bad59a6e0 (diff)
riscv: Enable Undefined Behavior Sanitizer UBSAN
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. VDSO is excluded because its build doesn't include the __ubsan_handle_*() functions from lib/ubsan.c, and the VDSO has no sane way to report errors even if it has definitions of these functions. Passed lib/test_ubsan.c test. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/kernel')
-rw-r--r--arch/riscv/kernel/vdso/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/kernel/vdso/Makefile b/arch/riscv/kernel/vdso/Makefile
index 24d936c147cd..30a5335bd317 100644
--- a/arch/riscv/kernel/vdso/Makefile
+++ b/arch/riscv/kernel/vdso/Makefile
@@ -36,6 +36,7 @@ CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os
GCOV_PROFILE := n
KCOV_INSTRUMENT := n
KASAN_SANITIZE := n
+UBSAN_SANITIZE := n
# Force dependency
$(obj)/vdso.o: $(obj)/vdso.so