Martin Roth | 239b5df | 2022-07-26 22:18:26 -0600 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Harshit Sharma | 9c88fb8 | 2020-06-17 20:19:00 -0700 | [diff] [blame] | 2 | |
| 3 | #ifndef __ASAN_H |
| 4 | #define __ASAN_H |
| 5 | |
Elyes HAOUAS | 69fb7d2 | 2020-08-21 11:05:00 +0200 | [diff] [blame] | 6 | #include <types.h> |
| 7 | |
Harshit Sharma | 9c88fb8 | 2020-06-17 20:19:00 -0700 | [diff] [blame] | 8 | #define ASAN_SHADOW_SCALE_SHIFT 3 |
| 9 | |
| 10 | #define ASAN_SHADOW_SCALE_SIZE (1UL << ASAN_SHADOW_SCALE_SHIFT) |
| 11 | #define ASAN_SHADOW_MASK (ASAN_SHADOW_SCALE_SIZE - 1) |
| 12 | |
| 13 | #define ASAN_GLOBAL_REDZONE 0xFA |
| 14 | #define ASAN_STACK_LEFT 0xF1 |
| 15 | #define ASAN_STACK_MID 0xF2 |
| 16 | #define ASAN_STACK_RIGHT 0xF3 |
| 17 | #define ASAN_STACK_PARTIAL 0xF4 |
| 18 | #define ASAN_USE_AFTER_SCOPE 0xF8 |
| 19 | |
| 20 | #define _RET_IP_ ((unsigned long)__builtin_return_address(0)) |
| 21 | #define likely(x) __builtin_expect(!!(x), 1) |
| 22 | #define unlikely(x) __builtin_expect(!!(x), 0) |
| 23 | |
| 24 | #define WARN_ON(condition) ({ \ |
| 25 | int __ret_warn_on = !!(condition); \ |
| 26 | unlikely(__ret_warn_on); \ |
| 27 | }) |
| 28 | |
| 29 | #ifndef ASAN_ABI_VERSION |
| 30 | #define ASAN_ABI_VERSION 5 |
| 31 | #endif |
| 32 | |
| 33 | /* The layout of struct dictated by compiler */ |
| 34 | struct asan_source_location { |
| 35 | const char *filename; |
| 36 | int line_no; |
| 37 | int column_no; |
| 38 | }; |
| 39 | |
| 40 | /* The layout of struct dictated by compiler */ |
| 41 | struct asan_global { |
| 42 | const void *beg; /* Address of the beginning of the global variable. */ |
| 43 | size_t size; /* Size of the global variable. */ |
| 44 | size_t size_with_redzone; /* Size of the variable + size of the red zone |
| 45 | 32 bytes aligned. */ |
| 46 | const void *name; |
| 47 | const void *module_name; /* Name of the module where the global variable |
| 48 | is declared. */ |
| 49 | unsigned long has_dynamic_init; /* This needed for C++. */ |
| 50 | #if ASAN_ABI_VERSION >= 4 |
| 51 | struct asan_source_location *location; |
| 52 | #endif |
| 53 | #if ASAN_ABI_VERSION >= 5 |
| 54 | char *odr_indicator; |
| 55 | #endif |
| 56 | }; |
| 57 | |
| 58 | void asan_unpoison_shadow(const void *address, size_t size); |
| 59 | void asan_report(unsigned long addr, size_t size, bool is_write, |
| 60 | unsigned long ip); |
| 61 | void asan_init(void); |
Harshit Sharma | 51593dd | 2020-08-08 17:51:59 -0700 | [diff] [blame] | 62 | void check_memory_region(unsigned long addr, size_t size, bool write, |
| 63 | unsigned long ret_ip); |
Harshit Sharma | 9c88fb8 | 2020-06-17 20:19:00 -0700 | [diff] [blame] | 64 | |
| 65 | uintptr_t __asan_shadow_offset(uintptr_t addr); |
| 66 | void __asan_register_globals(struct asan_global *globals, size_t size); |
| 67 | void __asan_unregister_globals(struct asan_global *globals, size_t size); |
| 68 | void __asan_poison_stack_memory(const void *addr, size_t size); |
| 69 | void __asan_unpoison_stack_memory(const void *addr, size_t size); |
| 70 | |
| 71 | void __asan_load1(unsigned long addr); |
| 72 | void __asan_store1(unsigned long addr); |
| 73 | void __asan_load2(unsigned long addr); |
| 74 | void __asan_store2(unsigned long addr); |
| 75 | void __asan_load4(unsigned long addr); |
| 76 | void __asan_store4(unsigned long addr); |
| 77 | void __asan_load8(unsigned long addr); |
| 78 | void __asan_store8(unsigned long addr); |
| 79 | void __asan_load16(unsigned long addr); |
| 80 | void __asan_store16(unsigned long addr); |
| 81 | void __asan_loadN(unsigned long addr, size_t size); |
| 82 | void __asan_storeN(unsigned long addr, size_t size); |
| 83 | |
| 84 | void __asan_load1_noabort(unsigned long addr); |
| 85 | void __asan_store1_noabort(unsigned long addr); |
| 86 | void __asan_load2_noabort(unsigned long addr); |
| 87 | void __asan_store2_noabort(unsigned long addr); |
| 88 | void __asan_load4_noabort(unsigned long addr); |
| 89 | void __asan_store4_noabort(unsigned long addr); |
| 90 | void __asan_load8_noabort(unsigned long addr); |
| 91 | void __asan_store8_noabort(unsigned long addr); |
| 92 | void __asan_load16_noabort(unsigned long addr); |
| 93 | void __asan_store16_noabort(unsigned long addr); |
| 94 | void __asan_loadN_noabort(unsigned long addr, size_t size); |
| 95 | void __asan_storeN_noabort(unsigned long addr, size_t size); |
| 96 | void __asan_handle_no_return(void); |
| 97 | |
| 98 | void __asan_set_shadow_00(const void *addr, size_t size); |
| 99 | void __asan_set_shadow_f1(const void *addr, size_t size); |
| 100 | void __asan_set_shadow_f2(const void *addr, size_t size); |
| 101 | void __asan_set_shadow_f3(const void *addr, size_t size); |
| 102 | void __asan_set_shadow_f5(const void *addr, size_t size); |
| 103 | void __asan_set_shadow_f8(const void *addr, size_t size); |
| 104 | |
| 105 | void __asan_report_load1_noabort(unsigned long addr); |
| 106 | void __asan_report_store1_noabort(unsigned long addr); |
| 107 | void __asan_report_load2_noabort(unsigned long addr); |
| 108 | void __asan_report_store2_noabort(unsigned long addr); |
| 109 | void __asan_report_load4_noabort(unsigned long addr); |
| 110 | void __asan_report_store4_noabort(unsigned long addr); |
| 111 | void __asan_report_load8_noabort(unsigned long addr); |
| 112 | void __asan_report_store8_noabort(unsigned long addr); |
| 113 | void __asan_report_load16_noabort(unsigned long addr); |
| 114 | void __asan_report_store16_noabort(unsigned long addr); |
| 115 | void __asan_report_load_n_noabort(unsigned long addr, size_t size); |
| 116 | void __asan_report_store_n_noabort(unsigned long addr, size_t size); |
| 117 | #endif |