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/Instruction/ARM/EmulateInstructionARM.h"
12 #include "Plugins/Instruction/MIPS/EmulateInstructionMIPS.h"
13 #include "Plugins/Instruction/MIPS64/EmulateInstructionMIPS64.h"
14 #include "Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.h"
15 #include "Plugins/ObjectContainer/Universal-Mach-O/ObjectContainerUniversalMachO.h"
16 #include "Plugins/Process/gdb-remote/ProcessGDBRemoteLog.h"
17 #include "lldb/Host/FileSystem.h"
18 #include "lldb/Host/Host.h"
19 #include "lldb/Host/HostInfo.h"
20 #include "lldb/Utility/Log.h"
21 #include "lldb/Utility/Reproducer.h"
22 #include "lldb/Utility/Timer.h"
23 
24 #if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
25 #include "Plugins/Process/POSIX/ProcessPOSIXLog.h"
26 #endif
27 
28 #if defined(_MSC_VER)
29 #include "Plugins/Process/Windows/Common/ProcessWindowsLog.h"
30 #include "lldb/Host/windows/windows.h"
31 #endif
32 
33 #include "llvm/Support/TargetSelect.h"
34 
35 #include <string>
36 
37 using namespace lldb_private;
38 using namespace lldb_private::repro;
39 
40 SystemInitializerCommon::SystemInitializerCommon() {}
41 
42 SystemInitializerCommon::~SystemInitializerCommon() {}
43 
44 llvm::Error SystemInitializerCommon::Initialize() {
45 #if defined(_MSC_VER)
46   const char *disable_crash_dialog_var = getenv("LLDB_DISABLE_CRASH_DIALOG");
47   if (disable_crash_dialog_var &&
48       llvm::StringRef(disable_crash_dialog_var).equals_lower("true")) {
49     // This will prevent Windows from displaying a dialog box requiring user
50     // interaction when
51     // LLDB crashes.  This is mostly useful when automating LLDB, for example
52     // via the test
53     // suite, so that a crash in LLDB does not prevent completion of the test
54     // suite.
55     ::SetErrorMode(GetErrorMode() | SEM_FAILCRITICALERRORS |
56                    SEM_NOGPFAULTERRORBOX);
57 
58     _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
59     _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
60     _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
61     _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);
62     _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
63     _CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR);
64   }
65 #endif
66 
67   // If the reproducer wasn't initialized before, we can safely assume it's
68   // off.
69   if (!Reproducer::Initialized()) {
70     if (auto e = Reproducer::Initialize(ReproducerMode::Off, llvm::None))
71       return e;
72   }
73 
74   // Initialize the file system.
75   auto &r = repro::Reproducer::Instance();
76   if (repro::Loader *loader = r.GetLoader()) {
77     FileSpec vfs_mapping = loader->GetFile<FileInfo>();
78     if (vfs_mapping) {
79       if (llvm::Error e = FileSystem::Initialize(vfs_mapping))
80         return e;
81     } else {
82       FileSystem::Initialize();
83     }
84   } else if (repro::Generator *g = r.GetGenerator()) {
85     repro::FileProvider &fp = g->GetOrCreate<repro::FileProvider>();
86     FileSystem::Initialize(fp.GetFileCollector());
87   } else {
88     FileSystem::Initialize();
89   }
90 
91   Log::Initialize();
92   HostInfo::Initialize();
93   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
94   Timer scoped_timer(func_cat, LLVM_PRETTY_FUNCTION);
95 
96   process_gdb_remote::ProcessGDBRemoteLog::Initialize();
97 
98   // Initialize plug-ins
99   ObjectContainerBSDArchive::Initialize();
100 
101   EmulateInstructionARM::Initialize();
102   EmulateInstructionMIPS::Initialize();
103   EmulateInstructionMIPS64::Initialize();
104 
105   //----------------------------------------------------------------------
106   // Apple/Darwin hosted plugins
107   //----------------------------------------------------------------------
108   ObjectContainerUniversalMachO::Initialize();
109 
110 #if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
111   ProcessPOSIXLog::Initialize();
112 #endif
113 #if defined(_MSC_VER)
114   ProcessWindowsLog::Initialize();
115 #endif
116 
117   return llvm::Error::success();
118 }
119 
120 void SystemInitializerCommon::Terminate() {
121   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
122   Timer scoped_timer(func_cat, LLVM_PRETTY_FUNCTION);
123   ObjectContainerBSDArchive::Terminate();
124 
125   EmulateInstructionARM::Terminate();
126   EmulateInstructionMIPS::Terminate();
127   EmulateInstructionMIPS64::Terminate();
128 
129   ObjectContainerUniversalMachO::Terminate();
130 
131 #if defined(_MSC_VER)
132   ProcessWindowsLog::Terminate();
133 #endif
134 
135   HostInfo::Terminate();
136   Log::DisableAllLogChannels();
137   FileSystem::Terminate();
138   Reproducer::Terminate();
139 }
140