1 //===-- sanitizer_mac.h -----------------------------------------*- C++ -*-===// 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 // This file is shared between various sanitizers' runtime libraries and 10 // provides definitions for OSX-specific functions. 11 //===----------------------------------------------------------------------===// 12 #ifndef SANITIZER_MAC_H 13 #define SANITIZER_MAC_H 14 15 #include "sanitizer_common.h" 16 #include "sanitizer_platform.h" 17 #if SANITIZER_MAC 18 #include "sanitizer_posix.h" 19 20 namespace __sanitizer { 21 22 struct MemoryMappingLayoutData { 23 int current_image; 24 u32 current_magic; 25 u32 current_filetype; 26 ModuleArch current_arch; 27 u8 current_uuid[kModuleUUIDSize]; 28 int current_load_cmd_count; 29 const char *current_load_cmd_addr; 30 bool current_instrumented; 31 }; 32 33 template <typename VersionType> 34 struct VersionBase { 35 u16 major; 36 u16 minor; 37 38 VersionBase(u16 major, u16 minor) : major(major), minor(minor) {} 39 40 bool operator==(const VersionType &other) const { 41 return major == other.major && minor == other.minor; 42 } 43 bool operator>=(const VersionType &other) const { 44 return major > other.major || 45 (major == other.major && minor >= other.minor); 46 } 47 }; 48 49 struct MacosVersion : VersionBase<MacosVersion> { 50 MacosVersion(u16 major, u16 minor) : VersionBase(major, minor) {} 51 }; 52 53 struct DarwinKernelVersion : VersionBase<DarwinKernelVersion> { 54 DarwinKernelVersion(u16 major, u16 minor) : VersionBase(major, minor) {} 55 }; 56 57 MacosVersion GetMacosAlignedVersion(); 58 DarwinKernelVersion GetDarwinKernelVersion(); 59 60 char **GetEnviron(); 61 62 void RestrictMemoryToMaxAddress(uptr max_address); 63 64 } // namespace __sanitizer 65 66 extern "C" { 67 static char __crashreporter_info_buff__[__sanitizer::kErrorMessageBufferSize] = 68 {}; 69 static const char *__crashreporter_info__ __attribute__((__used__)) = 70 &__crashreporter_info_buff__[0]; 71 asm(".desc ___crashreporter_info__, 0x10"); 72 } // extern "C" 73 74 namespace __sanitizer { 75 static BlockingMutex crashreporter_info_mutex(LINKER_INITIALIZED); 76 77 INLINE void CRAppendCrashLogMessage(const char *msg) { 78 BlockingMutexLock l(&crashreporter_info_mutex); 79 internal_strlcat(__crashreporter_info_buff__, msg, 80 sizeof(__crashreporter_info_buff__)); } 81 } // namespace __sanitizer 82 83 #endif // SANITIZER_MAC 84 #endif // SANITIZER_MAC_H 85