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 24using namespace __ubsan; 25 26const char *__ubsan::GetSanititizerToolName() { 27 return "UndefinedBehaviorSanitizer"; 28} 29 30static bool ubsan_initialized; 31static StaticSpinMutex ubsan_init_mu; 32 33static void CommonInit() { 34 InitializeSuppressions(); 35} 36 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 47void __ubsan::InitAsStandalone() { 48 SpinMutexLock l(&ubsan_init_mu); 49 if (!ubsan_initialized) { 50 CommonStandaloneInit(); 51 ubsan_initialized = true; 52 } 53} 54 55void __ubsan::InitAsStandaloneIfNecessary() { return InitAsStandalone(); } 56 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