lldb/source/API/SystemInitializerFull.cpp

   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/Core/Progress.h"
  14 #include "lldb/Host/Config.h"
  15 #include "lldb/Host/Host.h"
  16 #include "lldb/Initialization/SystemInitializerCommon.h"
  17 #include "lldb/Interpreter/CommandInterpreter.h"
  18 #include "lldb/Target/ProcessTrace.h"
  19 #include "lldb/Utility/Timer.h"
  20 #include "lldb/Version/Version.h"
  21 #include "llvm/Support/CommandLine.h"
  22 #include "llvm/Support/TargetSelect.h"
  23
  24 #pragma clang diagnostic push
  25 #pragma clang diagnostic ignored "-Wglobal-constructors"
  26 #include "llvm/ExecutionEngine/MCJIT.h"
  27 #pragma clang diagnostic pop
  28
  29 #include <string>
  30
  31 #define LLDB_PLUGIN(p) LLDB_PLUGIN_DECLARE(p)
  32 #include "Plugins/Plugins.def"
  33
  34 #if LLDB_ENABLE_PYTHON
  35 #include "Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h"
  36
  37 constexpr lldb_private::HostInfo::SharedLibraryDirectoryHelper
  38     *g_shlib_dir_helper =
  39         lldb_private::ScriptInterpreterPython::SharedLibraryDirectoryHelper;
  40
  41 #else
  42 constexpr lldb_private::HostInfo::SharedLibraryDirectoryHelper
  43     *g_shlib_dir_helper = nullptr;
  44 #endif
  45
  46 using namespace lldb_private;
  47
  48 SystemInitializerFull::SystemInitializerFull()
  49     : SystemInitializerCommon(g_shlib_dir_helper) {}
  50 SystemInitializerFull::~SystemInitializerFull() = default;
  51
  52 llvm::Error SystemInitializerFull::Initialize() {
  53   llvm::Error error = SystemInitializerCommon::Initialize();
  54   if (error)
  55     return error;
  56
  57   // Initialize LLVM and Clang
  58   llvm::InitializeAllTargets();
  59   llvm::InitializeAllAsmPrinters();
  60   llvm::InitializeAllTargetMCs();
  61   llvm::InitializeAllDisassemblers();
  62
  63   // Initialize the command line parser in LLVM. This usually isn't necessary
  64   // as we aren't dealing with command line options here, but otherwise some
  65   // other code in Clang/LLVM might be tempted to call this function from a
  66   // different thread later on which won't work (as the function isn't
  67   // thread-safe).
  68   const char *arg0 = "lldb";
  69   llvm::cl::ParseCommandLineOptions(1, &arg0);
  70
  71   // Initialize the progress manager.
  72   ProgressManager::Initialize();
  73
  74 #define LLDB_PLUGIN(p) LLDB_PLUGIN_INITIALIZE(p);
  75 #include "Plugins/Plugins.def"
  76
  77   // Scan for any system or user LLDB plug-ins.
  78   PluginManager::Initialize();
  79
  80   // The process settings need to know about installed plug-ins, so the
  81   // Settings must be initialized AFTER PluginManager::Initialize is called.
  82   Debugger::SettingsInitialize();
  83
  84   // Use the Debugger's LLDBAssert callback.
  85   SetLLDBAssertCallback(Debugger::AssertCallback);
  86
  87   // Use the system log to report errors that would otherwise get dropped.
  88   SetLLDBErrorLog(GetLog(SystemLog::System));
  89
  90   LLDB_LOG(GetLog(SystemLog::System), "{0}", GetVersion());
  91
  92   return llvm::Error::success();
  93 }
  94
  95 void SystemInitializerFull::Terminate() {
  96   Debugger::SettingsTerminate();
  97
  98   // Terminate plug-ins in core LLDB.
  99   ProcessTrace::Terminate();
 100
 101   // Terminate and unload and loaded system or user LLDB plug-ins.
 102   PluginManager::Terminate();
 103
 104 #define LLDB_PLUGIN(p) LLDB_PLUGIN_TERMINATE(p);
 105 #include "Plugins/Plugins.def"
 106
 107   // Terminate the progress manager.
 108   ProgressManager::Terminate();
 109
 110   // Now shutdown the common parts, in reverse order.
 111   SystemInitializerCommon::Terminate();
 112 }