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/*
* 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();
}
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