1 //===-- SystemInitializerCommon.cpp -----------------------------*- 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 #include "lldb/Initialization/SystemInitializerCommon.h"
10 
11 #include "Plugins/Process/gdb-remote/ProcessGDBRemoteLog.h"
12 #include "lldb/Host/FileSystem.h"
13 #include "lldb/Host/Host.h"
14 #include "lldb/Host/HostInfo.h"
15 #include "lldb/Host/Socket.h"
16 #include "lldb/Utility/Log.h"
17 #include "lldb/Utility/Reproducer.h"
18 #include "lldb/Utility/Timer.h"
19 #include "lldb/lldb-private.h"
20 
21 #if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
22 #include "Plugins/Process/POSIX/ProcessPOSIXLog.h"
23 #endif
24 
25 #if defined(_WIN32)
26 #include "Plugins/Process/Windows/Common/ProcessWindowsLog.h"
27 #include "lldb/Host/windows/windows.h"
28 #include <crtdbg.h>
29 #endif
30 
31 #include "llvm/Support/TargetSelect.h"
32 
33 #include <string>
34 
35 using namespace lldb_private;
36 using namespace lldb_private::repro;
37 
38 SystemInitializerCommon::SystemInitializerCommon() {}
39 
40 SystemInitializerCommon::~SystemInitializerCommon() {}
41 
42 llvm::Error SystemInitializerCommon::Initialize() {
43 #if defined(_WIN32)
44   const char *disable_crash_dialog_var = getenv("LLDB_DISABLE_CRASH_DIALOG");
45   if (disable_crash_dialog_var &&
46       llvm::StringRef(disable_crash_dialog_var).equals_lower("true")) {
47     // This will prevent Windows from displaying a dialog box requiring user
48     // interaction when
49     // LLDB crashes.  This is mostly useful when automating LLDB, for example
50     // via the test
51     // suite, so that a crash in LLDB does not prevent completion of the test
52     // suite.
53     ::SetErrorMode(GetErrorMode() | SEM_FAILCRITICALERRORS |
54                    SEM_NOGPFAULTERRORBOX);
55 
56     _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
57     _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
58     _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
59     _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);
60     _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
61     _CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR);
62   }
63 #endif
64 
65   // If the reproducer wasn't initialized before, we can safely assume it's
66   // off.
67   if (!Reproducer::Initialized()) {
68     if (auto e = Reproducer::Initialize(ReproducerMode::Off, llvm::None))
69       return e;
70   }
71 
72   auto &r = repro::Reproducer::Instance();
73   if (repro::Loader *loader = r.GetLoader()) {
74     FileSpec vfs_mapping = loader->GetFile<FileProvider::Info>();
75     if (vfs_mapping) {
76       if (llvm::Error e = FileSystem::Initialize(vfs_mapping))
77         return e;
78     } else {
79       FileSystem::Initialize();
80     }
81   } else if (repro::Generator *g = r.GetGenerator()) {
82     repro::VersionProvider &vp = g->GetOrCreate<repro::VersionProvider>();
83     vp.SetVersion(lldb_private::GetVersion());
84     repro::FileProvider &fp = g->GetOrCreate<repro::FileProvider>();
85     FileSystem::Initialize(fp.GetFileCollector());
86   } else {
87     FileSystem::Initialize();
88   }
89 
90   Log::Initialize();
91   HostInfo::Initialize();
92 
93   llvm::Error error = Socket::Initialize();
94   if (error)
95     return error;
96 
97   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
98   Timer scoped_timer(func_cat, LLVM_PRETTY_FUNCTION);
99 
100   process_gdb_remote::ProcessGDBRemoteLog::Initialize();
101 
102 #if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
103   ProcessPOSIXLog::Initialize();
104 #endif
105 #if defined(_WIN32)
106   ProcessWindowsLog::Initialize();
107 #endif
108 
109   return llvm::Error::success();
110 }
111 
112 void SystemInitializerCommon::Terminate() {
113   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
114   Timer scoped_timer(func_cat, LLVM_PRETTY_FUNCTION);
115 
116 #if defined(_WIN32)
117   ProcessWindowsLog::Terminate();
118 #endif
119 
120   Socket::Terminate();
121   HostInfo::Terminate();
122   Log::DisableAllLogChannels();
123   FileSystem::Terminate();
124   Reproducer::Terminate();
125 }
126