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1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* | |
3 | * A minimal header declaring types added by KMSAN to existing kernel structs. | |
4 | * | |
5 | * Copyright (C) 2017-2022 Google LLC | |
6 | * Author: Alexander Potapenko <glider@google.com> | |
7 | * | |
8 | */ | |
9 | #ifndef _LINUX_KMSAN_TYPES_H | |
10 | #define _LINUX_KMSAN_TYPES_H | |
11 | ||
12 | /* These constants are defined in the MSan LLVM instrumentation pass. */ | |
13 | #define KMSAN_RETVAL_SIZE 800 | |
14 | #define KMSAN_PARAM_SIZE 800 | |
15 | ||
16 | struct kmsan_context_state { | |
17 | char param_tls[KMSAN_PARAM_SIZE]; | |
18 | char retval_tls[KMSAN_RETVAL_SIZE]; | |
19 | char va_arg_tls[KMSAN_PARAM_SIZE]; | |
20 | char va_arg_origin_tls[KMSAN_PARAM_SIZE]; | |
21 | u64 va_arg_overflow_size_tls; | |
22 | char param_origin_tls[KMSAN_PARAM_SIZE]; | |
23 | u32 retval_origin_tls; | |
24 | }; | |
25 | ||
26 | #undef KMSAN_PARAM_SIZE | |
27 | #undef KMSAN_RETVAL_SIZE | |
28 | ||
29 | struct kmsan_ctx { | |
30 | struct kmsan_context_state cstate; | |
31 | int kmsan_in_runtime; | |
32 | bool allow_reporting; | |
33 | }; | |
34 | ||
35 | #endif /* _LINUX_KMSAN_TYPES_H */ |