151 lines
5.1 KiB
C++
151 lines
5.1 KiB
C++
//===-- SystemInitializerFull.cpp -----------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "SystemInitializerFull.h"
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#include "lldb/API/SBCommandInterpreter.h"
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#include "lldb/API/SBDebugger.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Core/Progress.h"
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#include "lldb/Host/Config.h"
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#include "lldb/Host/Host.h"
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#include "lldb/Initialization/SystemInitializerCommon.h"
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Target/ProcessTrace.h"
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#include "lldb/Utility/Timer.h"
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#include "lldb/Version/Version.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/TargetSelect.h"
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wglobal-constructors"
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#include "llvm/ExecutionEngine/MCJIT.h"
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#pragma clang diagnostic pop
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#include <string>
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#define LLDB_PLUGIN(p) LLDB_PLUGIN_DECLARE(p)
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#include "Plugins/Plugins.def"
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#if LLDB_ENABLE_PYTHON
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#include "Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h"
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constexpr lldb_private::HostInfo::SharedLibraryDirectoryHelper
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*g_shlib_dir_helper =
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lldb_private::ScriptInterpreterPython::SharedLibraryDirectoryHelper;
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#else
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constexpr lldb_private::HostInfo::SharedLibraryDirectoryHelper
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*g_shlib_dir_helper = nullptr;
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#endif
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using namespace lldb_private;
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SystemInitializerFull::SystemInitializerFull()
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: SystemInitializerCommon(g_shlib_dir_helper) {}
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SystemInitializerFull::~SystemInitializerFull() = default;
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llvm::Error SystemInitializerFull::Initialize() {
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llvm::Error error = SystemInitializerCommon::Initialize();
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if (error)
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return error;
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// Initialize LLVM and Clang
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llvm::InitializeAllTargets();
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llvm::InitializeAllAsmPrinters();
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llvm::InitializeAllTargetMCs();
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llvm::InitializeAllDisassemblers();
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// Initialize the command line parser in LLVM. This usually isn't necessary
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// as we aren't dealing with command line options here, but otherwise some
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// other code in Clang/LLVM might be tempted to call this function from a
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// different thread later on which won't work (as the function isn't
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// thread-safe).
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const char *arg0 = "lldb";
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llvm::cl::ParseCommandLineOptions(1, &arg0);
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#define LLDB_PLUGIN(p) LLDB_PLUGIN_INITIALIZE(p);
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#include "Plugins/Plugins.def"
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// Scan for any system or user LLDB plug-ins.
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PluginManager::Initialize();
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// The process settings need to know about installed plug-ins, so the
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// Settings must be initialized AFTER PluginManager::Initialize is called.
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Debugger::SettingsInitialize();
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// Use the Debugger's LLDBAssert callback.
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SetLLDBAssertCallback(Debugger::AssertCallback);
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// Use the system log to report errors that would otherwise get dropped.
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SetLLDBErrorLog(GetLog(SystemLog::System));
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LLDB_LOG(GetLog(SystemLog::System), "{0}", GetVersion());
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auto LoadPlugin = [](const lldb::DebuggerSP &debugger_sp,
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const FileSpec &spec,
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Status &error) -> llvm::sys::DynamicLibrary {
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llvm::sys::DynamicLibrary dynlib =
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llvm::sys::DynamicLibrary::getPermanentLibrary(spec.GetPath().c_str());
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if (dynlib.isValid()) {
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typedef bool (*LLDBCommandPluginInit)(lldb::SBDebugger debugger);
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lldb::SBDebugger debugger_sb(debugger_sp);
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// This calls the bool lldb::PluginInitialize(lldb::SBDebugger debugger)
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// function.
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// TODO: mangle this differently for your system - on OSX, the first
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// underscore needs to be removed and the second one stays
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LLDBCommandPluginInit init_func =
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(LLDBCommandPluginInit)(uintptr_t)dynlib.getAddressOfSymbol(
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"_ZN4lldb16PluginInitializeENS_10SBDebuggerE");
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if (init_func) {
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if (init_func(debugger_sb))
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return dynlib;
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else
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error = Status::FromErrorString(
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"plug-in refused to load "
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"(lldb::PluginInitialize(lldb::SBDebugger) "
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"returned false)");
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} else {
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error = Status::FromErrorString(
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"plug-in is missing the required initialization: "
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"lldb::PluginInitialize(lldb::SBDebugger)");
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}
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} else {
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if (FileSystem::Instance().Exists(spec))
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error = Status::FromErrorString(
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"this file does not represent a loadable dylib");
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else
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error = Status::FromErrorString("no such file");
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}
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return llvm::sys::DynamicLibrary();
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};
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Debugger::Initialize(LoadPlugin);
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return llvm::Error::success();
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}
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void SystemInitializerFull::Terminate() {
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Debugger::Terminate();
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Debugger::SettingsTerminate();
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// Terminate plug-ins in core LLDB.
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ProcessTrace::Terminate();
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// Terminate and unload and loaded system or user LLDB plug-ins.
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PluginManager::Terminate();
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#define LLDB_PLUGIN(p) LLDB_PLUGIN_TERMINATE(p);
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#include "Plugins/Plugins.def"
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// Now shutdown the common parts, in reverse order.
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SystemInitializerCommon::Terminate();
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}
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