1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LIB_UBSAN_H
#define _LIB_UBSAN_H
/*
* ABI defined by Clang's UBSAN enum SanitizerHandler:
* https://github.com/llvm/llvm-project/blob/release/16.x/clang/lib/CodeGen/CodeGenFunction.h#L113
*/
enum ubsan_checks {
ubsan_add_overflow,
ubsan_builtin_unreachable,
ubsan_cfi_check_fail,
ubsan_divrem_overflow,
ubsan_dynamic_type_cache_miss,
ubsan_float_cast_overflow,
ubsan_function_type_mismatch,
ubsan_implicit_conversion,
ubsan_invalid_builtin,
ubsan_invalid_objc_cast,
ubsan_load_invalid_value,
ubsan_missing_return,
ubsan_mul_overflow,
ubsan_negate_overflow,
ubsan_nullability_arg,
ubsan_nullability_return,
ubsan_nonnull_arg,
ubsan_nonnull_return,
ubsan_out_of_bounds,
ubsan_pointer_overflow,
ubsan_shift_out_of_bounds,
ubsan_sub_overflow,
ubsan_type_mismatch,
ubsan_alignment_assumption,
ubsan_vla_bound_not_positive,
};
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 type_mismatch_data_v1 {
struct source_location location;
struct type_descriptor *type;
unsigned char log_alignment;
unsigned char type_check_kind;
};
struct type_mismatch_data_common {
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 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;
};
struct alignment_assumption_data {
struct source_location location;
struct source_location assumption_location;
struct type_descriptor *type;
};
#if defined(CONFIG_ARCH_SUPPORTS_INT128)
typedef __int128 s_max;
typedef unsigned __int128 u_max;
#else
typedef s64 s_max;
typedef u64 u_max;
#endif
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);
void __ubsan_handle_alignment_assumption(void *_data, unsigned long ptr,
unsigned long align,
unsigned long offset);
#endif
|
