1 //===-- ubsan_init.cc -----------------------------------------------------===// 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 // Initialization of UBSan runtime. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "ubsan_platform.h" 15 #if CAN_SANITIZE_UB 16 #include "ubsan_diag.h" 17 #include "ubsan_init.h" 18 #include "ubsan_flags.h" 19 #include "sanitizer_common/sanitizer_common.h" 20 #include "sanitizer_common/sanitizer_libc.h" 21 #include "sanitizer_common/sanitizer_mutex.h" 22 #include "sanitizer_common/sanitizer_symbolizer.h" 23 24 using namespace __ubsan; 25 GetSanititizerToolName()26const char *__ubsan::GetSanititizerToolName() { 27 return "UndefinedBehaviorSanitizer"; 28 } 29 30 static bool ubsan_initialized; 31 static StaticSpinMutex ubsan_init_mu; 32 CommonInit()33static void CommonInit() { 34 InitializeSuppressions(); 35 } 36 CommonStandaloneInit()37static void CommonStandaloneInit() { 38 SanitizerToolName = GetSanititizerToolName(); 39 CacheBinaryName(); 40 InitializeFlags(); 41 __sanitizer_set_report_path(common_flags()->log_path); 42 AndroidLogInit(); 43 InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir); 44 CommonInit(); 45 } 46 InitAsStandalone()47void __ubsan::InitAsStandalone() { 48 SpinMutexLock l(&ubsan_init_mu); 49 if (!ubsan_initialized) { 50 CommonStandaloneInit(); 51 ubsan_initialized = true; 52 } 53 } 54 InitAsStandaloneIfNecessary()55void __ubsan::InitAsStandaloneIfNecessary() { return InitAsStandalone(); } 56 InitAsPlugin()57void __ubsan::InitAsPlugin() { 58 SpinMutexLock l(&ubsan_init_mu); 59 if (!ubsan_initialized) { 60 CommonInit(); 61 ubsan_initialized = true; 62 } 63 } 64 65 #endif // CAN_SANITIZE_UB 66