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
20namespace __sanitizer {
21
22struct 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
33template <typename VersionType>
34struct 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 ||
42           (major == other.major && minor >= other.minor);
43  }
44  bool operator<(const VersionType &other) const { return !(*this >= other); }
45};
46
47template <typename VersionType>
48bool operator==(const VersionBase<VersionType> &self,
49                const VersionBase<VersionType> &other) {
50  return self.major == other.major && self.minor == other.minor;
51}
52
53struct MacosVersion : VersionBase<MacosVersion> {
54  MacosVersion(u16 major, u16 minor) : VersionBase(major, minor) {}
55};
56
57struct DarwinKernelVersion : VersionBase<DarwinKernelVersion> {
58  DarwinKernelVersion(u16 major, u16 minor) : VersionBase(major, minor) {}
59};
60
61MacosVersion GetMacosAlignedVersion();
62DarwinKernelVersion GetDarwinKernelVersion();
63
64char **GetEnviron();
65
66void RestrictMemoryToMaxAddress(uptr max_address);
67
68using ThreadEventCallback = void (*)(uptr thread);
69using ThreadCreateEventCallback = void (*)(uptr thread, bool gcd_worker);
70struct ThreadEventCallbacks {
71  ThreadCreateEventCallback create;
72  ThreadEventCallback start;
73  ThreadEventCallback terminate;
74  ThreadEventCallback destroy;
75};
76
77void InstallPthreadIntrospectionHook(const ThreadEventCallbacks &callbacks);
78
79}  // namespace __sanitizer
80
81#endif  // SANITIZER_APPLE
82#endif  // SANITIZER_APPLE_H