@@ -10,6 +10,9 @@ obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o hyp-init.o
obj-y += ../vgic-v3-sr.o ../aarch32.o ../vgic-v2-cpuif-proxy.o ../entry.o \
../fpsimd.o ../hyp-entry.o
+CFLAGS_ubsan.hyp.tmp.o += -I $(srctree)/lib/
+obj-$(CONFIG_UBSAN) += ubsan.o
+
obj-y := $(patsubst %.o,%.hyp.o,$(obj-y))
extra-y := $(patsubst %.hyp.o,%.hyp.tmp.o,$(obj-y))
@@ -54,7 +57,6 @@ KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE) $(CC_FLAGS_SCS), $(KBUILD_CFLAG
# cause crashes. Just disable it.
GCOV_PROFILE := n
KASAN_SANITIZE := n
-UBSAN_SANITIZE := n
KCOV_INSTRUMENT := n
# Skip objtool checking for this directory because nVHE code is compiled with
new file mode 100644
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2020 Google LLC
+ * Author: George Popescu <georgepope@google.com>
+ */
+#include <linux/ctype.h>
+#include <linux/types.h>
+#include <ubsan.h>
+
+void __ubsan_handle_add_overflow(void *_data, void *lhs, void *rhs) {}
+
+void __ubsan_handle_sub_overflow(void *_data, void *lhs, void *rhs) {}
+
+void __ubsan_handle_mul_overflow(void *_data, void *lhs, void *rhs) {}
+
+void __ubsan_handle_negate_overflow(void *_data, void *old_val) {}
+
+void __ubsan_handle_divrem_overflow(void *_data, void *lhs, void *rhs) {}
+
+void __ubsan_handle_type_mismatch(struct type_mismatch_data *data, void *ptr) {}
+
+void __ubsan_handle_type_mismatch_v1(void *_data, void *ptr) {}
+
+void __ubsan_handle_out_of_bounds(void *_data, void *index) {}
+
+void __ubsan_handle_shift_out_of_bounds(void *_data, void *lhs, void *rhs) {}
+
+void __ubsan_handle_builtin_unreachable(void *_data) {}
+
+void __ubsan_handle_load_invalid_value(void *_data, void *val) {}