1//===-- ubsan_init.cpp ----------------------------------------------------===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8// 9// Initialization of UBSan runtime. 10// 11//===----------------------------------------------------------------------===// 12 13#include "ubsan_platform.h" 14#if CAN_SANITIZE_UB 15#include "ubsan_diag.h" 16#include "ubsan_init.h" 17#include "ubsan_flags.h" 18#include "sanitizer_common/sanitizer_common.h" 19#include "sanitizer_common/sanitizer_libc.h" 20#include "sanitizer_common/sanitizer_mutex.h" 21#include "sanitizer_common/sanitizer_symbolizer.h" 22 23using namespace __ubsan; 24 25const char *__ubsan::GetSanititizerToolName() { 26 return "UndefinedBehaviorSanitizer"; 27} 28 29static bool ubsan_initialized; 30static StaticSpinMutex ubsan_init_mu; 31 32static void CommonInit() { 33 InitializeSuppressions(); 34} 35 36static void CommonStandaloneInit() { 37 SanitizerToolName = GetSanititizerToolName(); 38 CacheBinaryName(); 39 InitializeFlags(); 40 __sanitizer_set_report_path(common_flags()->log_path); 41 AndroidLogInit(); 42 InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir); 43 CommonInit(); 44} 45 46void __ubsan::InitAsStandalone() { 47 SpinMutexLock l(&ubsan_init_mu); 48 if (!ubsan_initialized) { 49 CommonStandaloneInit(); 50 ubsan_initialized = true; 51 } 52} 53 54void __ubsan::InitAsStandaloneIfNecessary() { return InitAsStandalone(); } 55 56void __ubsan::InitAsPlugin() { 57 SpinMutexLock l(&ubsan_init_mu); 58 if (!ubsan_initialized) { 59 CommonInit(); 60 ubsan_initialized = true; 61 } 62} 63 64#endif // CAN_SANITIZE_UB 65