Merge '5f62213e684dbea03b5a2bb732405a03ccc1a815' into master am: 5dfd96a0b3 am: 780068d4ee am: 1d4a3be615r_aml_301500702android-mainline-12.0.0_r55android-mainline-11.0.0_r9android-mainline-11.0.0_r8android-mainline-11.0.0_r7android-mainline-11.0.0_r6android-mainline-11.0.0_r5android-mainline-11.0.0_r45android-mainline-11.0.0_r44android-mainline-11.0.0_r43android-mainline-11.0.0_r42android-mainline-11.0.0_r41android-mainline-11.0.0_r40android-mainline-11.0.0_r4android-mainline-11.0.0_r39android-mainline-11.0.0_r38android-mainline-11.0.0_r37android-mainline-11.0.0_r36android-mainline-11.0.0_r35android-mainline-11.0.0_r34android-mainline-11.0.0_r33android-mainline-11.0.0_r32android-mainline-11.0.0_r31android-mainline-11.0.0_r30android-mainline-11.0.0_r3android-mainline-11.0.0_r29android-mainline-11.0.0_r28android-mainline-11.0.0_r27android-mainline-11.0.0_r26android-mainline-11.0.0_r25android-mainline-11.0.0_r24android-mainline-11.0.0_r23android-mainline-11.0.0_r22android-mainline-11.0.0_r21android-mainline-11.0.0_r20android-mainline-11.0.0_r2android-mainline-11.0.0_r19android-mainline-11.0.0_r18android-mainline-11.0.0_r17android-mainline-11.0.0_r16android-mainline-11.0.0_r15android-mainline-11.0.0_r14android-mainline-11.0.0_r13android-mainline-11.0.0_r12android-mainline-11.0.0_r10android-mainline-11.0.0_r1android-11.0.0_r48android-11.0.0_r47android-11.0.0_r46android-11.0.0_r45android-11.0.0_r44android-11.0.0_r43android-11.0.0_r42android-11.0.0_r41android-11.0.0_r40android-11.0.0_r39android-11.0.0_r38android-11.0.0_r37android-11.0.0_r36android-11.0.0_r35android-11.0.0_r34android-11.0.0_r33android-11.0.0_r32android-11.0.0_r31android-11.0.0_r30android-11.0.0_r29android-11.0.0_r28android-11.0.0_r27android-11.0.0_r26android-11.0.0_r24android-11.0.0_r23android-11.0.0_r22android-11.0.0_r21android-11.0.0_r20android-11.0.0_r19android-11.0.0_r18android-11.0.0_r16android11-qpr3-s1-releaseandroid11-qpr3-releaseandroid11-qpr2-releaseandroid11-qpr1-s2-releaseandroid11-qpr1-s1-releaseandroid11-qpr1-releaseandroid11-qpr1-d-s1-releaseandroid11-qpr1-d-releaseandroid11-qpr1-c-releaseandroid11-mainline-tethering-releaseandroid11-mainline-sparse-2021-jan-releaseandroid11-mainline-sparse-2020-dec-releaseandroid11-mainline-releaseandroid11-mainline-permission-releaseandroid11-mainline-os-statsd-releaseandroid11-mainline-networkstack-releaseandroid11-mainline-media-swcodec-releaseandroid11-mainline-media-releaseandroid11-mainline-extservices-releaseandroid11-mainline-documentsui-releaseandroid11-mainline-conscrypt-releaseandroid11-mainline-cellbroadcast-releaseandroid11-mainline-captiveportallogin-releaseandroid11-devandroid11-d2-releaseandroid11-d1-b-release

Change-Id: Ia911040759d199f8c1ec0b51abd4fa556a6b8b40

1 files changed, 220 insertions, 0 deletions

diff --git a/plat/common/ubsan.c b/plat/common/ubsan.c
new file mode 100644
index 000000000..45b0f7cce
--- /dev/null
+++ b/plat/common/ubsan.c
@@ -0,0 +1,220 @@
+/*
+ * Copyright (c) 2016, Linaro Limited
+ * Copyright (c) 2019, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <arch_helpers.h>
+#include <context.h>
+#include <common/debug.h>
+#include <plat/common/platform.h>
+
+struct source_location {
+	const char *file_name;
+	uint32_t line;
+	uint32_t column;
+};
+
+struct type_descriptor {
+	uint16_t type_kind;
+	uint16_t type_info;
+	char type_name[1];
+};
+
+struct type_mismatch_data {
+	struct source_location loc;
+	struct type_descriptor *type;
+	unsigned long alignment;
+	unsigned char type_check_kind;
+};
+
+struct overflow_data {
+	struct source_location loc;
+	struct type_descriptor *type;
+};
+
+struct shift_out_of_bounds_data {
+	struct source_location loc;
+	struct type_descriptor *lhs_type;
+	struct type_descriptor *rhs_type;
+};
+
+struct out_of_bounds_data {
+	struct source_location loc;
+	struct type_descriptor *array_type;
+	struct type_descriptor *index_type;
+};
+
+struct unreachable_data {
+	struct source_location loc;
+};
+
+struct vla_bound_data {
+	struct source_location loc;
+	struct type_descriptor *type;
+};
+
+struct invalid_value_data {
+	struct source_location loc;
+	struct type_descriptor *type;
+};
+
+struct nonnull_arg_data {
+	struct source_location loc;
+};
+
+/*
+ * When compiling with -fsanitize=undefined the compiler expects functions
+ * with the following signatures. The functions are never called directly,
+ * only when undefined behavior is detected in instrumented code.
+ */
+void __ubsan_handle_type_mismatch_abort(struct type_mismatch_data *data,
+					unsigned long ptr);
+void __ubsan_handle_type_mismatch_v1_abort(struct type_mismatch_data *data,
+					   unsigned long ptr);
+void __ubsan_handle_add_overflow_abort(struct overflow_data *data,
+					unsigned long lhs, unsigned long rhs);
+void __ubsan_handle_sub_overflow_abort(struct overflow_data *data,
+				       unsigned long lhs, unsigned long rhs);
+void __ubsan_handle_mul_overflow_abort(struct overflow_data *data,
+				       unsigned long lhs, unsigned long rhs);
+void __ubsan_handle_negate_overflow_abort(struct overflow_data *data,
+					  unsigned long old_val);
+void __ubsan_handle_pointer_overflow_abort(struct overflow_data *data,
+					   unsigned long old_val);
+void __ubsan_handle_divrem_overflow_abort(struct overflow_data *data,
+					  unsigned long lhs, unsigned long rhs);
+void __ubsan_handle_shift_out_of_bounds_abort(struct shift_out_of_bounds_data *data,
+					      unsigned long lhs, unsigned long rhs);
+void __ubsan_handle_out_of_bounds_abort(struct out_of_bounds_data *data,
+					unsigned long idx);
+void __ubsan_handle_unreachable_abort(struct unreachable_data *data);
+void __ubsan_handle_missing_return_abort(struct unreachable_data *data);
+void __ubsan_handle_vla_bound_not_positive_abort(struct vla_bound_data *data,
+						 unsigned long bound);
+void __ubsan_handle_load_invalid_value_abort(struct invalid_value_data *data,
+					     unsigned long val);
+void __ubsan_handle_nonnull_arg_abort(struct nonnull_arg_data *data
+#if __GCC_VERSION < 60000
+				    , size_t arg_no
+#endif
+				      );
+
+static void print_loc(const char *func, struct source_location *loc)
+{
+	ERROR("Undefined behavior at %s:%d col %d (%s)",
+		loc->file_name, loc->line, loc->column, func);
+}
+
+
+void __ubsan_handle_type_mismatch_abort(struct type_mismatch_data *data,
+					unsigned long ptr __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_type_mismatch_v1_abort(struct type_mismatch_data *data,
+					unsigned long ptr __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_add_overflow_abort(struct overflow_data *data,
+				       unsigned long lhs __unused,
+				       unsigned long rhs __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_sub_overflow_abort(struct overflow_data *data,
+				       unsigned long lhs __unused,
+				       unsigned long rhs __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_mul_overflow_abort(struct overflow_data *data,
+				       unsigned long lhs __unused,
+				       unsigned long rhs __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_negate_overflow_abort(struct overflow_data *data,
+					  unsigned long old_val __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_pointer_overflow_abort(struct overflow_data *data,
+					  unsigned long old_val __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_divrem_overflow_abort(struct overflow_data *data,
+					  unsigned long lhs __unused,
+					  unsigned long rhs __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_shift_out_of_bounds_abort(struct shift_out_of_bounds_data *data,
+					      unsigned long lhs __unused,
+					      unsigned long rhs __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_out_of_bounds_abort(struct out_of_bounds_data *data,
+					unsigned long idx __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_unreachable_abort(struct unreachable_data *data)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_missing_return_abort(struct unreachable_data *data)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_vla_bound_not_positive_abort(struct vla_bound_data *data,
+						 unsigned long bound __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_load_invalid_value_abort(struct invalid_value_data *data,
+					     unsigned long val __unused)
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}
+
+void __ubsan_handle_nonnull_arg_abort(struct nonnull_arg_data *data
+#if __GCC_VERSION < 60000
+				   , size_t arg_no __unused
+#endif
+				     )
+{
+	print_loc(__func__, &data->loc);
+	plat_panic_handler();
+}