SystemInitializerFull.cpp

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//===-- SystemInitializerFull.cpp -----------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#include "SystemInitializerFull.h"
#include "lldb/API/SBCommandInterpreter.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Host/Config.h"
#include "lldb/Host/Host.h"
#include "lldb/Initialization/SystemInitializerCommon.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Target/ProcessTrace.h"
#include "lldb/Utility/Timer.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/TargetSelect.h"
 
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wglobal-constructors"
#include "llvm/ExecutionEngine/MCJIT.h"
#pragma clang diagnostic pop
 
#include <string>
 
#define LLDB_PLUGIN(p) LLDB_PLUGIN_DECLARE(p)
#include "Plugins/Plugins.def"
 
#if LLDB_ENABLE_PYTHON
#include "Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h"
 
constexpr lldb_private::HostInfo::SharedLibraryDirectoryHelper
    *g_shlib_dir_helper =
        lldb_private::ScriptInterpreterPython::SharedLibraryDirectoryHelper;
 
#else
constexpr lldb_private::HostInfo::SharedLibraryDirectoryHelper
    *g_shlib_dir_helper = nullptr;
#endif
 
using namespace lldb_private;
 
SystemInitializerFull::SystemInitializerFull()
    : SystemInitializerCommon(g_shlib_dir_helper) {}
SystemInitializerFull::~SystemInitializerFull() = default;
 
llvm::Error SystemInitializerFull::Initialize() {
  llvm::Error error = SystemInitializerCommon::Initialize();
  if (error)
    return error;
 
  // Initialize LLVM and Clang
  llvm::InitializeAllTargets();
  llvm::InitializeAllAsmPrinters();
  llvm::InitializeAllTargetMCs();
  llvm::InitializeAllDisassemblers();
  // Initialize the command line parser in LLVM. This usually isn't necessary
  // as we aren't dealing with command line options here, but otherwise some
  // other code in Clang/LLVM might be tempted to call this function from a
  // different thread later on which won't work (as the function isn't
  // thread-safe).
  const char *arg0 = "lldb";
  llvm::cl::ParseCommandLineOptions(1, &arg0);
 
#define LLDB_PLUGIN(p) LLDB_PLUGIN_INITIALIZE(p);
#include "Plugins/Plugins.def"
 
  // Initialize plug-ins in core LLDB
  ProcessTrace::Initialize();
 
  // Scan for any system or user LLDB plug-ins
  PluginManager::Initialize();
 
  // The process settings need to know about installed plug-ins, so the
  // Settings must be initialized AFTER PluginManager::Initialize is called.
  Debugger::SettingsInitialize();
 
  // Use the Debugger's LLDBAssert callback.
  SetLLDBAssertCallback(Debugger::AssertCallback);
 
  return llvm::Error::success();
}
 
void SystemInitializerFull::Terminate() {
  Debugger::SettingsTerminate();
 
  // Terminate plug-ins in core LLDB
  ProcessTrace::Terminate();
 
  // Terminate and unload and loaded system or user LLDB plug-ins
  PluginManager::Terminate();
 
#define LLDB_PLUGIN(p) LLDB_PLUGIN_TERMINATE(p);
#include "Plugins/Plugins.def"
 
  // Now shutdown the common parts, in reverse order.
  SystemInitializerCommon::Terminate();
}