| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | /* |
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| 3 | * A minimal header declaring types added by KMSAN to existing kernel structs. |
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| 4 | * |
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| 5 | * Copyright (C) 2017-2022 Google LLC |
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| 6 | * Author: Alexander Potapenko <glider@google.com> |
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| 7 | * |
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| 8 | */ |
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| 9 | #ifndef _LINUX_KMSAN_TYPES_H |
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| 10 | #define _LINUX_KMSAN_TYPES_H |
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| 11 | |
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| 12 | /* These constants are defined in the MSan LLVM instrumentation pass. */ |
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| 13 | #define KMSAN_RETVAL_SIZE 800 |
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| 14 | #define KMSAN_PARAM_SIZE 800 |
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| 15 | |
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| 16 | struct kmsan_context_state { |
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| 17 | char param_tls[KMSAN_PARAM_SIZE]; |
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| 18 | char retval_tls[KMSAN_RETVAL_SIZE]; |
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| 19 | char va_arg_tls[KMSAN_PARAM_SIZE]; |
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| 20 | char va_arg_origin_tls[KMSAN_PARAM_SIZE]; |
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| 21 | u64 va_arg_overflow_size_tls; |
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| 22 | char param_origin_tls[KMSAN_PARAM_SIZE]; |
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| 23 | u32 retval_origin_tls; |
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| 24 | }; |
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| 25 | |
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| 26 | #undef KMSAN_PARAM_SIZE |
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| 27 | #undef KMSAN_RETVAL_SIZE |
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| 28 | |
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| 29 | struct kmsan_ctx { |
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| 30 | struct kmsan_context_state cstate; |
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| 31 | int kmsan_in_runtime; |
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| 32 | bool allow_reporting; |
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| 33 | }; |
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| 34 | |
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| 35 | #endif /* _LINUX_KMSAN_TYPES_H */ |
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| 36 | |
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