1 //===-- dfsan.h -------------------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file is a part of DataFlowSanitizer. 11 // 12 // Private DFSan header. 13 //===----------------------------------------------------------------------===// 14 15 #ifndef DFSAN_H 16 #define DFSAN_H 17 18 #include "sanitizer_common/sanitizer_internal_defs.h" 19 #include "dfsan_platform.h" 20 21 // Copy declarations from public sanitizer/dfsan_interface.h header here. 22 typedef u16 dfsan_label; 23 24 struct dfsan_label_info { 25 dfsan_label l1; 26 dfsan_label l2; 27 const char *desc; 28 void *userdata; 29 }; 30 31 extern "C" { 32 void dfsan_add_label(dfsan_label label, void *addr, uptr size); 33 void dfsan_set_label(dfsan_label label, void *addr, uptr size); 34 dfsan_label dfsan_read_label(const void *addr, uptr size); 35 dfsan_label dfsan_union(dfsan_label l1, dfsan_label l2); 36 } // extern "C" 37 38 template <typename T> 39 void dfsan_set_label(dfsan_label label, T &data) { // NOLINT 40 dfsan_set_label(label, (void *)&data, sizeof(T)); 41 } 42 43 namespace __dfsan { 44 45 void InitializeInterceptors(); 46 47 inline dfsan_label *shadow_for(void *ptr) { 48 return (dfsan_label *) ((((uptr) ptr) & ShadowMask()) << 1); 49 } 50 51 inline const dfsan_label *shadow_for(const void *ptr) { 52 return shadow_for(const_cast<void *>(ptr)); 53 } 54 55 struct Flags { 56 #define DFSAN_FLAG(Type, Name, DefaultValue, Description) Type Name; 57 #include "dfsan_flags.inc" 58 #undef DFSAN_FLAG 59 60 void SetDefaults(); 61 }; 62 63 extern Flags flags_data; 64 inline Flags &flags() { 65 return flags_data; 66 } 67 68 } // namespace __dfsan 69 70 #endif // DFSAN_H 71
