lib/ubsan.h


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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LIB_UBSAN_H
#define _LIB_UBSAN_H

enum {
	type_kind_int = 0,
	type_kind_float = 1,
	type_unknown = 0xffff
};

struct type_descriptor {
	u16 type_kind;
	u16 type_info;
	char type_name[1];
};

struct source_location {
	const char *file_name;
	union {
		unsigned long reported;
		struct {
			u32 line;
			u32 column;
		};
	};
};

struct overflow_data {
	struct source_location location;
	struct type_descriptor *type;
};

struct type_mismatch_data {
	struct source_location location;
	struct type_descriptor *type;
	unsigned long alignment;
	unsigned char type_check_kind;
};

struct nonnull_arg_data {
	struct source_location location;
	struct source_location attr_location;
	int arg_index;
};

struct nonnull_return_data {
	struct source_location location;
	struct source_location attr_location;
};

struct vla_bound_data {
	struct source_location location;
	struct type_descriptor *type;
};

struct out_of_bounds_data {
	struct source_location location;
	struct type_descriptor *array_type;
	struct type_descriptor *index_type;
};

struct shift_out_of_bounds_data {
	struct source_location location;
	struct type_descriptor *lhs_type;
	struct type_descriptor *rhs_type;
};

struct unreachable_data {
	struct source_location location;
};

struct invalid_value_data {
	struct source_location location;
	struct type_descriptor *type;
};

#if defined(CONFIG_ARCH_SUPPORTS_INT128) && defined(__SIZEOF_INT128__)
typedef __int128 s_max;
typedef unsigned __int128 u_max;
#else
typedef s64 s_max;
typedef u64 u_max;
#endif

#endif