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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/API/SBDebugger.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/Progress.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 "lldb/Version/Version.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"
// 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);
// Use the system log to report errors that would otherwise get dropped.
SetLLDBErrorLog(GetLog(SystemLog::System));
LLDB_LOG(GetLog(SystemLog::System), "{0}", GetVersion());
auto LoadPlugin = [](const lldb::DebuggerSP &debugger_sp,
const FileSpec &spec,
Status &error) -> llvm::sys::DynamicLibrary {
llvm::sys::DynamicLibrary dynlib =
llvm::sys::DynamicLibrary::getPermanentLibrary(spec.GetPath().c_str());
if (dynlib.isValid()) {
typedef bool (*LLDBCommandPluginInit)(lldb::SBDebugger debugger);
lldb::SBDebugger debugger_sb(debugger_sp);
// This calls the bool lldb::PluginInitialize(lldb::SBDebugger debugger)
// function.
// TODO: mangle this differently for your system - on OSX, the first
// underscore needs to be removed and the second one stays
LLDBCommandPluginInit init_func =
(LLDBCommandPluginInit)(uintptr_t)dynlib.getAddressOfSymbol(
"_ZN4lldb16PluginInitializeENS_10SBDebuggerE");
if (init_func) {
if (init_func(debugger_sb))
return dynlib;
else
error = Status::FromErrorString(
"plug-in refused to load "
"(lldb::PluginInitialize(lldb::SBDebugger) "
"returned false)");
} else {
error = Status::FromErrorString(
"plug-in is missing the required initialization: "
"lldb::PluginInitialize(lldb::SBDebugger)");
}
} else {
if (FileSystem::Instance().Exists(spec))
error = Status::FromErrorString(
"this file does not represent a loadable dylib");
else
error = Status::FromErrorString("no such file");
}
return llvm::sys::DynamicLibrary();
};
Debugger::Initialize(LoadPlugin);
return llvm::Error::success();
}
void SystemInitializerFull::Terminate() {
Debugger::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();
}
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