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/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   // Use the Debugger's LLDBAssert callback.
  82   SetLLDBAssertCallback(Debugger::AssertCallback);
  83
  84   return llvm::Error::success();
  85 }
  86
  87 void SystemInitializerFull::Terminate() {
  88   Debugger::SettingsTerminate();
  89
  90   // Terminate plug-ins in core LLDB
  91   ProcessTrace::Terminate();
  92
  93   // Terminate and unload and loaded system or user LLDB plug-ins
  94   PluginManager::Terminate();
  95
  96 #define LLDB_PLUGIN(p) LLDB_PLUGIN_TERMINATE(p);
  97 #include "Plugins/Plugins.def"
  98
  99   // Now shutdown the common parts, in reverse order.
 100   SystemInitializerCommon::Terminate();
 101 }