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1 //===-- asan_interface_internal.h -------------------------------*- C++ -*-===//
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2 //
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3 // This file is distributed under the University of Illinois Open Source
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4 // License. See LICENSE.TXT for details.
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5 //
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6 //===----------------------------------------------------------------------===//
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7 //
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8 // This file is a part of AddressSanitizer, an address sanity checker.
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9 //
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10 // This header declares the AddressSanitizer runtime interface functions.
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11 // The runtime library has to define these functions so the instrumented program
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12 // could call them.
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13 //
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14 // See also include/sanitizer/asan_interface.h
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15 //===----------------------------------------------------------------------===//
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16 #ifndef ASAN_INTERFACE_INTERNAL_H
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17 #define ASAN_INTERFACE_INTERNAL_H
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18
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19 #include "sanitizer_common/sanitizer_internal_defs.h"
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20
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21 #include "asan_init_version.h"
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22
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23 using __sanitizer::uptr;
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24 using __sanitizer::u64;
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25 using __sanitizer::u32;
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26
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27 extern "C" {
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28 // This function should be called at the very beginning of the process,
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29 // before any instrumented code is executed and before any call to malloc.
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30 SANITIZER_INTERFACE_ATTRIBUTE void __asan_init();
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31
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32 // This function exists purely to get a linker/loader error when using
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33 // incompatible versions of instrumentation and runtime library. Please note
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34 // that __asan_version_mismatch_check is a macro that is replaced with
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35 // __asan_version_mismatch_check_vXXX at compile-time.
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36 SANITIZER_INTERFACE_ATTRIBUTE void __asan_version_mismatch_check();
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37
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38 // This structure is used to describe the source location of a place where
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39 // global was defined.
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40 struct __asan_global_source_location {
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41 const char *filename;
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42 int line_no;
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43 int column_no;
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44 };
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45
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46 // This structure describes an instrumented global variable.
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47 struct __asan_global {
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48 uptr beg; // The address of the global.
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49 uptr size; // The original size of the global.
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50 uptr size_with_redzone; // The size with the redzone.
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51 const char *name; // Name as a C string.
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52 const char *module_name; // Module name as a C string. This pointer is a
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53 // unique identifier of a module.
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54 uptr has_dynamic_init; // Non-zero if the global has dynamic initializer.
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55 __asan_global_source_location *location; // Source location of a global,
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56 // or NULL if it is unknown.
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57 uptr odr_indicator; // The address of the ODR indicator symbol.
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58 };
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59
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60 // These functions can be called on some platforms to find globals in the same
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61 // loaded image as `flag' and apply __asan_(un)register_globals to them,
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62 // filtering out redundant calls.
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63 SANITIZER_INTERFACE_ATTRIBUTE
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64 void __asan_register_image_globals(uptr *flag);
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65 SANITIZER_INTERFACE_ATTRIBUTE
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66 void __asan_unregister_image_globals(uptr *flag);
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67
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68 SANITIZER_INTERFACE_ATTRIBUTE
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69 void __asan_register_elf_globals(uptr *flag, void *start, void *stop);
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70 SANITIZER_INTERFACE_ATTRIBUTE
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71 void __asan_unregister_elf_globals(uptr *flag, void *start, void *stop);
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72
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73 // These two functions should be called by the instrumented code.
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74 // 'globals' is an array of structures describing 'n' globals.
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75 SANITIZER_INTERFACE_ATTRIBUTE
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76 void __asan_register_globals(__asan_global *globals, uptr n);
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77 SANITIZER_INTERFACE_ATTRIBUTE
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78 void __asan_unregister_globals(__asan_global *globals, uptr n);
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79
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80 // These two functions should be called before and after dynamic initializers
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81 // of a single module run, respectively.
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82 SANITIZER_INTERFACE_ATTRIBUTE
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83 void __asan_before_dynamic_init(const char *module_name);
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84 SANITIZER_INTERFACE_ATTRIBUTE
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85 void __asan_after_dynamic_init();
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86
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87 // Sets bytes of the given range of the shadow memory into specific value.
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88 SANITIZER_INTERFACE_ATTRIBUTE
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89 void __asan_set_shadow_00(uptr addr, uptr size);
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90 SANITIZER_INTERFACE_ATTRIBUTE
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91 void __asan_set_shadow_f1(uptr addr, uptr size);
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92 SANITIZER_INTERFACE_ATTRIBUTE
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93 void __asan_set_shadow_f2(uptr addr, uptr size);
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94 SANITIZER_INTERFACE_ATTRIBUTE
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95 void __asan_set_shadow_f3(uptr addr, uptr size);
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96 SANITIZER_INTERFACE_ATTRIBUTE
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97 void __asan_set_shadow_f5(uptr addr, uptr size);
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98 SANITIZER_INTERFACE_ATTRIBUTE
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99 void __asan_set_shadow_f8(uptr addr, uptr size);
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100
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101 // These two functions are used by instrumented code in the
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102 // use-after-scope mode. They mark memory for local variables as
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103 // unaddressable when they leave scope and addressable before the
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104 // function exits.
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105 SANITIZER_INTERFACE_ATTRIBUTE
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106 void __asan_poison_stack_memory(uptr addr, uptr size);
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107 SANITIZER_INTERFACE_ATTRIBUTE
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108 void __asan_unpoison_stack_memory(uptr addr, uptr size);
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109
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110 // Performs cleanup before a NoReturn function. Must be called before things
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111 // like _exit and execl to avoid false positives on stack.
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112 SANITIZER_INTERFACE_ATTRIBUTE void __asan_handle_no_return();
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113
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114 SANITIZER_INTERFACE_ATTRIBUTE
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115 void __asan_poison_memory_region(void const volatile *addr, uptr size);
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116 SANITIZER_INTERFACE_ATTRIBUTE
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117 void __asan_unpoison_memory_region(void const volatile *addr, uptr size);
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118
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119 SANITIZER_INTERFACE_ATTRIBUTE
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120 int __asan_address_is_poisoned(void const volatile *addr);
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121
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122 SANITIZER_INTERFACE_ATTRIBUTE
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123 uptr __asan_region_is_poisoned(uptr beg, uptr size);
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124
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125 SANITIZER_INTERFACE_ATTRIBUTE
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126 void __asan_describe_address(uptr addr);
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127
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128 SANITIZER_INTERFACE_ATTRIBUTE
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129 int __asan_report_present();
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130
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131 SANITIZER_INTERFACE_ATTRIBUTE
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132 uptr __asan_get_report_pc();
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133 SANITIZER_INTERFACE_ATTRIBUTE
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134 uptr __asan_get_report_bp();
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135 SANITIZER_INTERFACE_ATTRIBUTE
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136 uptr __asan_get_report_sp();
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137 SANITIZER_INTERFACE_ATTRIBUTE
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138 uptr __asan_get_report_address();
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139 SANITIZER_INTERFACE_ATTRIBUTE
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140 int __asan_get_report_access_type();
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141 SANITIZER_INTERFACE_ATTRIBUTE
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142 uptr __asan_get_report_access_size();
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143 SANITIZER_INTERFACE_ATTRIBUTE
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144 const char * __asan_get_report_description();
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145
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146 SANITIZER_INTERFACE_ATTRIBUTE
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147 const char * __asan_locate_address(uptr addr, char *name, uptr name_size,
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148 uptr *region_address, uptr *region_size);
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149
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150 SANITIZER_INTERFACE_ATTRIBUTE
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151 uptr __asan_get_alloc_stack(uptr addr, uptr *trace, uptr size,
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152 u32 *thread_id);
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153
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154 SANITIZER_INTERFACE_ATTRIBUTE
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155 uptr __asan_get_free_stack(uptr addr, uptr *trace, uptr size,
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156 u32 *thread_id);
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157
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158 SANITIZER_INTERFACE_ATTRIBUTE
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159 void __asan_get_shadow_mapping(uptr *shadow_scale, uptr *shadow_offset);
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160
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161 SANITIZER_INTERFACE_ATTRIBUTE
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162 void __asan_report_error(uptr pc, uptr bp, uptr sp,
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163 uptr addr, int is_write, uptr access_size, u32 exp);
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164
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165 SANITIZER_INTERFACE_ATTRIBUTE
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166 void __asan_set_death_callback(void (*callback)(void));
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167 SANITIZER_INTERFACE_ATTRIBUTE
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168 void __asan_set_error_report_callback(void (*callback)(const char*));
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169
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170 SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
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171 void __asan_on_error();
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172
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173 SANITIZER_INTERFACE_ATTRIBUTE void __asan_print_accumulated_stats();
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174
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175 SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
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176 const char* __asan_default_options();
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177
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178 SANITIZER_INTERFACE_ATTRIBUTE
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179 extern uptr __asan_shadow_memory_dynamic_address;
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180
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181 // Global flag, copy of ASAN_OPTIONS=detect_stack_use_after_return
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182 SANITIZER_INTERFACE_ATTRIBUTE
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183 extern int __asan_option_detect_stack_use_after_return;
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184
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185 SANITIZER_INTERFACE_ATTRIBUTE
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186 extern uptr *__asan_test_only_reported_buggy_pointer;
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187
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188 SANITIZER_INTERFACE_ATTRIBUTE void __asan_load1(uptr p);
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189 SANITIZER_INTERFACE_ATTRIBUTE void __asan_load2(uptr p);
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190 SANITIZER_INTERFACE_ATTRIBUTE void __asan_load4(uptr p);
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191 SANITIZER_INTERFACE_ATTRIBUTE void __asan_load8(uptr p);
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192 SANITIZER_INTERFACE_ATTRIBUTE void __asan_load16(uptr p);
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193 SANITIZER_INTERFACE_ATTRIBUTE void __asan_store1(uptr p);
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194 SANITIZER_INTERFACE_ATTRIBUTE void __asan_store2(uptr p);
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195 SANITIZER_INTERFACE_ATTRIBUTE void __asan_store4(uptr p);
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196 SANITIZER_INTERFACE_ATTRIBUTE void __asan_store8(uptr p);
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197 SANITIZER_INTERFACE_ATTRIBUTE void __asan_store16(uptr p);
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198 SANITIZER_INTERFACE_ATTRIBUTE void __asan_loadN(uptr p, uptr size);
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199 SANITIZER_INTERFACE_ATTRIBUTE void __asan_storeN(uptr p, uptr size);
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200
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201 SANITIZER_INTERFACE_ATTRIBUTE void __asan_load1_noabort(uptr p);
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202 SANITIZER_INTERFACE_ATTRIBUTE void __asan_load2_noabort(uptr p);
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203 SANITIZER_INTERFACE_ATTRIBUTE void __asan_load4_noabort(uptr p);
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204 SANITIZER_INTERFACE_ATTRIBUTE void __asan_load8_noabort(uptr p);
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205 SANITIZER_INTERFACE_ATTRIBUTE void __asan_load16_noabort(uptr p);
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206 SANITIZER_INTERFACE_ATTRIBUTE void __asan_store1_noabort(uptr p);
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207 SANITIZER_INTERFACE_ATTRIBUTE void __asan_store2_noabort(uptr p);
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208 SANITIZER_INTERFACE_ATTRIBUTE void __asan_store4_noabort(uptr p);
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209 SANITIZER_INTERFACE_ATTRIBUTE void __asan_store8_noabort(uptr p);
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210 SANITIZER_INTERFACE_ATTRIBUTE void __asan_store16_noabort(uptr p);
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211 SANITIZER_INTERFACE_ATTRIBUTE void __asan_loadN_noabort(uptr p, uptr size);
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212 SANITIZER_INTERFACE_ATTRIBUTE void __asan_storeN_noabort(uptr p, uptr size);
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213
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214 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_load1(uptr p, u32 exp);
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215 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_load2(uptr p, u32 exp);
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216 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_load4(uptr p, u32 exp);
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217 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_load8(uptr p, u32 exp);
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218 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_load16(uptr p, u32 exp);
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219 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_store1(uptr p, u32 exp);
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220 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_store2(uptr p, u32 exp);
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221 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_store4(uptr p, u32 exp);
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222 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_store8(uptr p, u32 exp);
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223 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_store16(uptr p, u32 exp);
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224 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_loadN(uptr p, uptr size,
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225 u32 exp);
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226 SANITIZER_INTERFACE_ATTRIBUTE void __asan_exp_storeN(uptr p, uptr size,
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227 u32 exp);
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228
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229 SANITIZER_INTERFACE_ATTRIBUTE
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230 void* __asan_memcpy(void *dst, const void *src, uptr size);
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231 SANITIZER_INTERFACE_ATTRIBUTE
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232 void* __asan_memset(void *s, int c, uptr n);
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233 SANITIZER_INTERFACE_ATTRIBUTE
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234 void* __asan_memmove(void* dest, const void* src, uptr n);
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235
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236 SANITIZER_INTERFACE_ATTRIBUTE
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237 void __asan_poison_cxx_array_cookie(uptr p);
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238 SANITIZER_INTERFACE_ATTRIBUTE
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239 uptr __asan_load_cxx_array_cookie(uptr *p);
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240 SANITIZER_INTERFACE_ATTRIBUTE
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241 void __asan_poison_intra_object_redzone(uptr p, uptr size);
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242 SANITIZER_INTERFACE_ATTRIBUTE
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243 void __asan_unpoison_intra_object_redzone(uptr p, uptr size);
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244 SANITIZER_INTERFACE_ATTRIBUTE
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245 void __asan_alloca_poison(uptr addr, uptr size);
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246 SANITIZER_INTERFACE_ATTRIBUTE
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247 void __asan_allocas_unpoison(uptr top, uptr bottom);
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248
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249 SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
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250 const char* __asan_default_suppressions();
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251 } // extern "C"
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252
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253 #endif // ASAN_INTERFACE_INTERNAL_H
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