1 //===-- SystemInitializerFull.cpp -----------------------------------------===//
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 "SystemInitializerFull.h"
10 #include "lldb/API/SBCommandInterpreter.h"
11 #include "lldb/Core/Debugger.h"
12 #include "lldb/Core/PluginManager.h"
13 #include "lldb/Host/Config.h"
14 #include "lldb/Host/Host.h"
15 #include "lldb/Initialization/SystemInitializerCommon.h"
16 #include "lldb/Interpreter/CommandInterpreter.h"
17 #include "lldb/Target/ProcessTrace.h"
18 #include "lldb/Utility/Timer.h"
19 #include "llvm/Support/CommandLine.h"
20 #include "llvm/Support/TargetSelect.h"
21 
22 #pragma clang diagnostic push
23 #pragma clang diagnostic ignored "-Wglobal-constructors"
24 #include "llvm/ExecutionEngine/MCJIT.h"
25 #pragma clang diagnostic pop
26 
27 #include <string>
28 
29 #define LLDB_PLUGIN(p) LLDB_PLUGIN_DECLARE(p)
30 #include "Plugins/Plugins.def"
31 
32 #if LLDB_ENABLE_PYTHON
33 #include "Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h"
34 
35 constexpr lldb_private::HostInfo::SharedLibraryDirectoryHelper
36     *g_shlib_dir_helper =
37         lldb_private::ScriptInterpreterPython::SharedLibraryDirectoryHelper;
38 
39 #else
40 constexpr lldb_private::HostInfo::SharedLibraryDirectoryHelper
41     *g_shlib_dir_helper = nullptr;
42 #endif
43 
44 using namespace lldb_private;
45 
46 SystemInitializerFull::SystemInitializerFull()
47     : SystemInitializerCommon(g_shlib_dir_helper) {}
48 SystemInitializerFull::~SystemInitializerFull() = default;
49 
50 llvm::Error SystemInitializerFull::Initialize() {
51   llvm::Error error = SystemInitializerCommon::Initialize();
52   if (error)
53     return error;
54 
55   // Initialize LLVM and Clang
56   llvm::InitializeAllTargets();
57   llvm::InitializeAllAsmPrinters();
58   llvm::InitializeAllTargetMCs();
59   llvm::InitializeAllDisassemblers();
60   // Initialize the command line parser in LLVM. This usually isn't necessary
61   // as we aren't dealing with command line options here, but otherwise some
62   // other code in Clang/LLVM might be tempted to call this function from a
63   // different thread later on which won't work (as the function isn't
64   // thread-safe).
65   const char *arg0 = "lldb";
66   llvm::cl::ParseCommandLineOptions(1, &arg0);
67 
68 #define LLDB_PLUGIN(p) LLDB_PLUGIN_INITIALIZE(p);
69 #include "Plugins/Plugins.def"
70 
71   // Initialize plug-ins in core LLDB
72   ProcessTrace::Initialize();
73 
74   // Scan for any system or user LLDB plug-ins
75   PluginManager::Initialize();
76 
77   // The process settings need to know about installed plug-ins, so the
78   // Settings must be initialized AFTER PluginManager::Initialize is called.
79   Debugger::SettingsInitialize();
80 
81   return llvm::Error::success();
82 }
83 
84 void SystemInitializerFull::Terminate() {
85   Debugger::SettingsTerminate();
86 
87   // Terminate plug-ins in core LLDB
88   ProcessTrace::Terminate();
89 
90   // Terminate and unload and loaded system or user LLDB plug-ins
91   PluginManager::Terminate();
92 
93 #define LLDB_PLUGIN(p) LLDB_PLUGIN_TERMINATE(p);
94 #include "Plugins/Plugins.def"
95 
96   // Now shutdown the common parts, in reverse order.
97   SystemInitializerCommon::Terminate();
98 }
99