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_APPLE_H 13 #define SANITIZER_APPLE_H 14 15 #include "sanitizer_common.h" 16 #include "sanitizer_platform.h" 17 #if SANITIZER_APPLE 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 VersionBaseVersionBase38 VersionBase(u16 major, u16 minor) : major(major), minor(minor) {} 39 40 bool operator>=(const VersionType &other) const { 41 return major > other.major || 42 (major == other.major && minor >= other.minor); 43 } 44 bool operator<(const VersionType &other) const { return !(*this >= other); } 45 }; 46 47 template <typename VersionType> 48 bool operator==(const VersionBase<VersionType> &self, 49 const VersionBase<VersionType> &other) { 50 return self.major == other.major && self.minor == other.minor; 51 } 52 53 struct MacosVersion : VersionBase<MacosVersion> { MacosVersionMacosVersion54 MacosVersion(u16 major, u16 minor) : VersionBase(major, minor) {} 55 }; 56 57 struct DarwinKernelVersion : VersionBase<DarwinKernelVersion> { DarwinKernelVersionDarwinKernelVersion58 DarwinKernelVersion(u16 major, u16 minor) : VersionBase(major, minor) {} 59 }; 60 61 MacosVersion GetMacosAlignedVersion(); 62 DarwinKernelVersion GetDarwinKernelVersion(); 63 64 char **GetEnviron(); 65 66 void RestrictMemoryToMaxAddress(uptr max_address); 67 68 using ThreadEventCallback = void (*)(uptr thread); 69 using ThreadCreateEventCallback = void (*)(uptr thread, bool gcd_worker); 70 struct ThreadEventCallbacks { 71 ThreadCreateEventCallback create; 72 ThreadEventCallback start; 73 ThreadEventCallback terminate; 74 ThreadEventCallback destroy; 75 }; 76 77 void InstallPthreadIntrospectionHook(const ThreadEventCallbacks &callbacks); 78 79 } // namespace __sanitizer 80 81 #endif // SANITIZER_APPLE 82 #endif // SANITIZER_APPLE_H 83