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
VersionBaseVersionBase38 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> {
MacosVersionMacosVersion50 MacosVersion(u16 major, u16 minor) : VersionBase(major, minor) {}
51 };
52
53 struct DarwinKernelVersion : VersionBase<DarwinKernelVersion> {
DarwinKernelVersionDarwinKernelVersion54 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
CRAppendCrashLogMessage(const char * msg)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