ee11ef6dc0
The dynamic linker on Darwin, dyld, can provide status of the process state for a few significant points early on, most importantly, when libSystem has been initialized and it is safe to call functions behind the scenes. Pipe this information up from debugserver to DynamicLoaderMacOS, for the DynamicLoader::IsFullyInitialized() method, then have Thread::SafeToCallFunctions use this information. Finally, for the two utility functions in the AppleObjCRuntimeV2 LanguageRuntime plugin that I was fixing, call this method before running our utility functions to collect the list of objc classes registered in the runtime. User expressions will still be allowed to run any time - we assume the user knows what they are doing - but these two additional utility functions that they are unaware of will be limited by this state. Differential Revision: https://reviews.llvm.org/D139054 rdar://102436092 can probably make function calls.
607 lines
23 KiB
C++
607 lines
23 KiB
C++
//===-- DynamicLoaderMacOS.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 "lldb/Breakpoint/StoppointCallbackContext.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Symbol/SymbolVendor.h"
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#include "lldb/Target/ABI.h"
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#include "lldb/Target/SectionLoadList.h"
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#include "lldb/Target/StackFrame.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/Thread.h"
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#include "lldb/Utility/LLDBLog.h"
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#include "lldb/Utility/Log.h"
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#include "lldb/Utility/State.h"
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#include "DynamicLoaderDarwin.h"
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#include "DynamicLoaderMacOS.h"
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#include "Plugins/TypeSystem/Clang/TypeSystemClang.h"
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using namespace lldb;
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using namespace lldb_private;
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// Create an instance of this class. This function is filled into the plugin
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// info class that gets handed out by the plugin factory and allows the lldb to
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// instantiate an instance of this class.
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DynamicLoader *DynamicLoaderMacOS::CreateInstance(Process *process,
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bool force) {
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bool create = force;
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if (!create) {
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create = true;
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Module *exe_module = process->GetTarget().GetExecutableModulePointer();
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if (exe_module) {
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ObjectFile *object_file = exe_module->GetObjectFile();
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if (object_file) {
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create = (object_file->GetStrata() == ObjectFile::eStrataUser);
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}
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}
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if (create) {
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const llvm::Triple &triple_ref =
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process->GetTarget().GetArchitecture().GetTriple();
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switch (triple_ref.getOS()) {
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case llvm::Triple::Darwin:
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case llvm::Triple::MacOSX:
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case llvm::Triple::IOS:
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case llvm::Triple::TvOS:
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case llvm::Triple::WatchOS:
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// NEED_BRIDGEOS_TRIPLE case llvm::Triple::BridgeOS:
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create = triple_ref.getVendor() == llvm::Triple::Apple;
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break;
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default:
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create = false;
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break;
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}
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}
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}
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if (!UseDYLDSPI(process)) {
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create = false;
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}
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if (create)
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return new DynamicLoaderMacOS(process);
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return nullptr;
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}
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// Constructor
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DynamicLoaderMacOS::DynamicLoaderMacOS(Process *process)
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: DynamicLoaderDarwin(process), m_image_infos_stop_id(UINT32_MAX),
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m_break_id(LLDB_INVALID_BREAK_ID),
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m_dyld_handover_break_id(LLDB_INVALID_BREAK_ID), m_mutex(),
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m_maybe_image_infos_address(LLDB_INVALID_ADDRESS),
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m_libsystem_fully_initalized(false) {}
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// Destructor
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DynamicLoaderMacOS::~DynamicLoaderMacOS() {
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if (LLDB_BREAK_ID_IS_VALID(m_break_id))
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m_process->GetTarget().RemoveBreakpointByID(m_break_id);
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if (LLDB_BREAK_ID_IS_VALID(m_dyld_handover_break_id))
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m_process->GetTarget().RemoveBreakpointByID(m_dyld_handover_break_id);
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}
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bool DynamicLoaderMacOS::ProcessDidExec() {
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std::lock_guard<std::recursive_mutex> baseclass_guard(GetMutex());
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bool did_exec = false;
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if (m_process) {
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// If we are stopped after an exec, we will have only one thread...
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if (m_process->GetThreadList().GetSize() == 1) {
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// Maybe we still have an image infos address around? If so see
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// if that has changed, and if so we have exec'ed.
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if (m_maybe_image_infos_address != LLDB_INVALID_ADDRESS) {
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lldb::addr_t image_infos_address = m_process->GetImageInfoAddress();
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if (image_infos_address != m_maybe_image_infos_address) {
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// We don't really have to reset this here, since we are going to
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// call DoInitialImageFetch right away to handle the exec. But in
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// case anybody looks at it in the meantime, it can't hurt.
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m_maybe_image_infos_address = image_infos_address;
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did_exec = true;
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}
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}
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if (!did_exec) {
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// See if we are stopped at '_dyld_start'
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ThreadSP thread_sp(m_process->GetThreadList().GetThreadAtIndex(0));
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if (thread_sp) {
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lldb::StackFrameSP frame_sp(thread_sp->GetStackFrameAtIndex(0));
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if (frame_sp) {
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const Symbol *symbol =
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frame_sp->GetSymbolContext(eSymbolContextSymbol).symbol;
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if (symbol) {
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if (symbol->GetName() == "_dyld_start")
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did_exec = true;
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}
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}
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}
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}
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}
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}
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if (did_exec) {
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m_libpthread_module_wp.reset();
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m_pthread_getspecific_addr.Clear();
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m_libsystem_fully_initalized = false;
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}
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return did_exec;
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}
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// Clear out the state of this class.
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void DynamicLoaderMacOS::DoClear() {
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std::lock_guard<std::recursive_mutex> guard(m_mutex);
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if (LLDB_BREAK_ID_IS_VALID(m_break_id))
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m_process->GetTarget().RemoveBreakpointByID(m_break_id);
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if (LLDB_BREAK_ID_IS_VALID(m_dyld_handover_break_id))
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m_process->GetTarget().RemoveBreakpointByID(m_dyld_handover_break_id);
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m_break_id = LLDB_INVALID_BREAK_ID;
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m_dyld_handover_break_id = LLDB_INVALID_BREAK_ID;
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m_libsystem_fully_initalized = false;
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}
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bool DynamicLoaderMacOS::IsFullyInitialized() {
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if (m_libsystem_fully_initalized)
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return true;
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StructuredData::ObjectSP process_state_sp(
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m_process->GetDynamicLoaderProcessState());
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if (!process_state_sp)
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return true;
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if (process_state_sp->GetAsDictionary()->HasKey("error"))
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return true;
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if (!process_state_sp->GetAsDictionary()->HasKey("process_state string"))
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return true;
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std::string proc_state = process_state_sp->GetAsDictionary()
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->GetValueForKey("process_state string")
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->GetAsString()
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->GetValue()
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.str();
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if (proc_state == "dyld_process_state_not_started" ||
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proc_state == "dyld_process_state_dyld_initialized" ||
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proc_state == "dyld_process_state_terminated_before_inits") {
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return false;
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}
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m_libsystem_fully_initalized = true;
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return true;
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}
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// Check if we have found DYLD yet
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bool DynamicLoaderMacOS::DidSetNotificationBreakpoint() {
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return LLDB_BREAK_ID_IS_VALID(m_break_id);
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}
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void DynamicLoaderMacOS::ClearNotificationBreakpoint() {
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if (LLDB_BREAK_ID_IS_VALID(m_break_id)) {
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m_process->GetTarget().RemoveBreakpointByID(m_break_id);
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m_break_id = LLDB_INVALID_BREAK_ID;
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}
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}
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// Try and figure out where dyld is by first asking the Process if it knows
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// (which currently calls down in the lldb::Process to get the DYLD info
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// (available on SnowLeopard only). If that fails, then check in the default
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// addresses.
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void DynamicLoaderMacOS::DoInitialImageFetch() {
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Log *log = GetLog(LLDBLog::DynamicLoader);
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// Remove any binaries we pre-loaded in the Target before
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// launching/attaching. If the same binaries are present in the process,
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// we'll get them from the shared module cache, we won't need to re-load them
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// from disk.
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UnloadAllImages();
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StructuredData::ObjectSP all_image_info_json_sp(
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m_process->GetLoadedDynamicLibrariesInfos());
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ImageInfo::collection image_infos;
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if (all_image_info_json_sp.get() &&
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all_image_info_json_sp->GetAsDictionary() &&
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all_image_info_json_sp->GetAsDictionary()->HasKey("images") &&
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all_image_info_json_sp->GetAsDictionary()
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->GetValueForKey("images")
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->GetAsArray()) {
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if (JSONImageInformationIntoImageInfo(all_image_info_json_sp,
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image_infos)) {
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LLDB_LOGF(log, "Initial module fetch: Adding %" PRId64 " modules.\n",
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(uint64_t)image_infos.size());
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UpdateSpecialBinariesFromNewImageInfos(image_infos);
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AddModulesUsingImageInfos(image_infos);
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}
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}
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m_dyld_image_infos_stop_id = m_process->GetStopID();
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m_maybe_image_infos_address = m_process->GetImageInfoAddress();
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}
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bool DynamicLoaderMacOS::NeedToDoInitialImageFetch() { return true; }
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// Static callback function that gets called when our DYLD notification
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// breakpoint gets hit. We update all of our image infos and then let our super
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// class DynamicLoader class decide if we should stop or not (based on global
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// preference).
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bool DynamicLoaderMacOS::NotifyBreakpointHit(void *baton,
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StoppointCallbackContext *context,
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lldb::user_id_t break_id,
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lldb::user_id_t break_loc_id) {
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// Let the event know that the images have changed
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// DYLD passes three arguments to the notification breakpoint.
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// Arg1: enum dyld_notify_mode mode - 0 = adding, 1 = removing, 2 = remove
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// all Arg2: unsigned long icount - Number of shared libraries
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// added/removed Arg3: uint64_t mach_headers[] - Array of load addresses
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// of binaries added/removed
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DynamicLoaderMacOS *dyld_instance = (DynamicLoaderMacOS *)baton;
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ExecutionContext exe_ctx(context->exe_ctx_ref);
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Process *process = exe_ctx.GetProcessPtr();
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// This is a sanity check just in case this dyld_instance is an old dyld
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// plugin's breakpoint still lying around.
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if (process != dyld_instance->m_process)
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return false;
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if (dyld_instance->m_image_infos_stop_id != UINT32_MAX &&
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process->GetStopID() < dyld_instance->m_image_infos_stop_id) {
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return false;
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}
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const lldb::ABISP &abi = process->GetABI();
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if (abi) {
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// Build up the value array to store the three arguments given above, then
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// get the values from the ABI:
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TypeSystemClang *clang_ast_context =
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ScratchTypeSystemClang::GetForTarget(process->GetTarget());
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if (!clang_ast_context)
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return false;
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ValueList argument_values;
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Value mode_value; // enum dyld_notify_mode { dyld_notify_adding=0,
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// dyld_notify_removing=1, dyld_notify_remove_all=2 };
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Value count_value; // unsigned long count
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Value headers_value; // uint64_t machHeaders[] (aka void*)
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CompilerType clang_void_ptr_type =
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clang_ast_context->GetBasicType(eBasicTypeVoid).GetPointerType();
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CompilerType clang_uint32_type =
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clang_ast_context->GetBuiltinTypeForEncodingAndBitSize(
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lldb::eEncodingUint, 32);
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CompilerType clang_uint64_type =
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clang_ast_context->GetBuiltinTypeForEncodingAndBitSize(
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lldb::eEncodingUint, 32);
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mode_value.SetValueType(Value::ValueType::Scalar);
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mode_value.SetCompilerType(clang_uint32_type);
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if (process->GetTarget().GetArchitecture().GetAddressByteSize() == 4) {
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count_value.SetValueType(Value::ValueType::Scalar);
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count_value.SetCompilerType(clang_uint32_type);
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} else {
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count_value.SetValueType(Value::ValueType::Scalar);
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count_value.SetCompilerType(clang_uint64_type);
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}
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headers_value.SetValueType(Value::ValueType::Scalar);
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headers_value.SetCompilerType(clang_void_ptr_type);
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argument_values.PushValue(mode_value);
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argument_values.PushValue(count_value);
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argument_values.PushValue(headers_value);
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if (abi->GetArgumentValues(exe_ctx.GetThreadRef(), argument_values)) {
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uint32_t dyld_mode =
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argument_values.GetValueAtIndex(0)->GetScalar().UInt(-1);
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if (dyld_mode != static_cast<uint32_t>(-1)) {
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// Okay the mode was right, now get the number of elements, and the
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// array of new elements...
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uint32_t image_infos_count =
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argument_values.GetValueAtIndex(1)->GetScalar().UInt(-1);
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if (image_infos_count != static_cast<uint32_t>(-1)) {
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addr_t header_array =
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argument_values.GetValueAtIndex(2)->GetScalar().ULongLong(-1);
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if (header_array != static_cast<uint64_t>(-1)) {
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std::vector<addr_t> image_load_addresses;
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for (uint64_t i = 0; i < image_infos_count; i++) {
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Status error;
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addr_t addr = process->ReadUnsignedIntegerFromMemory(
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header_array + (8 * i), 8, LLDB_INVALID_ADDRESS, error);
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if (addr != LLDB_INVALID_ADDRESS) {
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image_load_addresses.push_back(addr);
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}
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}
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if (dyld_mode == 0) {
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// dyld_notify_adding
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if (process->GetTarget().GetImages().GetSize() == 0) {
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// When all images have been removed, we're doing the
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// dyld handover from a launch-dyld to a shared-cache-dyld,
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// and we've just hit our one-shot address breakpoint in
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// the sc-dyld. Note that the image addresses passed to
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// this function are inferior sizeof(void*) not uint64_t's
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// like our normal notification, so don't even look at
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// image_load_addresses.
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dyld_instance->ClearDYLDHandoverBreakpoint();
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dyld_instance->DoInitialImageFetch();
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dyld_instance->SetNotificationBreakpoint();
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} else {
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dyld_instance->AddBinaries(image_load_addresses);
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}
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} else if (dyld_mode == 1) {
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// dyld_notify_removing
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dyld_instance->UnloadImages(image_load_addresses);
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} else if (dyld_mode == 2) {
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// dyld_notify_remove_all
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dyld_instance->UnloadAllImages();
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} else if (dyld_mode == 3 && image_infos_count == 1) {
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// dyld_image_dyld_moved
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dyld_instance->ClearNotificationBreakpoint();
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dyld_instance->UnloadAllImages();
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dyld_instance->ClearDYLDModule();
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process->GetTarget().GetImages().Clear();
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process->GetTarget().GetSectionLoadList().Clear();
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addr_t all_image_infos = process->GetImageInfoAddress();
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int addr_size =
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process->GetTarget().GetArchitecture().GetAddressByteSize();
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addr_t notification_location = all_image_infos + 4 + // version
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4 + // infoArrayCount
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addr_size; // infoArray
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Status error;
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addr_t notification_addr =
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process->ReadPointerFromMemory(notification_location, error);
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if (ABISP abi_sp = process->GetABI())
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notification_addr = abi_sp->FixCodeAddress(notification_addr);
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dyld_instance->SetDYLDHandoverBreakpoint(notification_addr);
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}
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}
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}
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}
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}
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} else {
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Target &target = process->GetTarget();
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Debugger::ReportWarning(
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"no ABI plugin located for triple " +
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target.GetArchitecture().GetTriple().getTriple() +
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": shared libraries will not be registered",
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target.GetDebugger().GetID());
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}
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// Return true to stop the target, false to just let the target run
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return dyld_instance->GetStopWhenImagesChange();
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}
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void DynamicLoaderMacOS::AddBinaries(
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const std::vector<lldb::addr_t> &load_addresses) {
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Log *log = GetLog(LLDBLog::DynamicLoader);
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ImageInfo::collection image_infos;
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LLDB_LOGF(log, "Adding %" PRId64 " modules.",
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(uint64_t)load_addresses.size());
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StructuredData::ObjectSP binaries_info_sp =
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m_process->GetLoadedDynamicLibrariesInfos(load_addresses);
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if (binaries_info_sp.get() && binaries_info_sp->GetAsDictionary() &&
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binaries_info_sp->GetAsDictionary()->HasKey("images") &&
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binaries_info_sp->GetAsDictionary()
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->GetValueForKey("images")
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->GetAsArray() &&
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binaries_info_sp->GetAsDictionary()
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->GetValueForKey("images")
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->GetAsArray()
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->GetSize() == load_addresses.size()) {
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if (JSONImageInformationIntoImageInfo(binaries_info_sp, image_infos)) {
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UpdateSpecialBinariesFromNewImageInfos(image_infos);
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AddModulesUsingImageInfos(image_infos);
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}
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m_dyld_image_infos_stop_id = m_process->GetStopID();
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}
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}
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// Dump the _dyld_all_image_infos members and all current image infos that we
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// have parsed to the file handle provided.
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void DynamicLoaderMacOS::PutToLog(Log *log) const {
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if (log == nullptr)
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return;
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}
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bool DynamicLoaderMacOS::SetNotificationBreakpoint() {
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if (m_break_id == LLDB_INVALID_BREAK_ID) {
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ModuleSP dyld_sp(GetDYLDModule());
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if (dyld_sp) {
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bool internal = true;
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bool hardware = false;
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LazyBool skip_prologue = eLazyBoolNo;
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FileSpecList *source_files = nullptr;
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FileSpecList dyld_filelist;
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dyld_filelist.Append(dyld_sp->GetFileSpec());
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Breakpoint *breakpoint =
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m_process->GetTarget()
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.CreateBreakpoint(&dyld_filelist, source_files,
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"_dyld_debugger_notification",
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eFunctionNameTypeFull, eLanguageTypeC, 0,
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skip_prologue, internal, hardware)
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.get();
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breakpoint->SetCallback(DynamicLoaderMacOS::NotifyBreakpointHit, this,
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true);
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breakpoint->SetBreakpointKind("shared-library-event");
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m_break_id = breakpoint->GetID();
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}
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}
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return m_break_id != LLDB_INVALID_BREAK_ID;
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}
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bool DynamicLoaderMacOS::SetDYLDHandoverBreakpoint(
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addr_t notification_address) {
|
|
if (m_dyld_handover_break_id == LLDB_INVALID_BREAK_ID) {
|
|
BreakpointSP dyld_handover_bp = m_process->GetTarget().CreateBreakpoint(
|
|
notification_address, true, false);
|
|
dyld_handover_bp->SetCallback(DynamicLoaderMacOS::NotifyBreakpointHit, this,
|
|
true);
|
|
dyld_handover_bp->SetOneShot(true);
|
|
m_dyld_handover_break_id = dyld_handover_bp->GetID();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void DynamicLoaderMacOS::ClearDYLDHandoverBreakpoint() {
|
|
if (LLDB_BREAK_ID_IS_VALID(m_dyld_handover_break_id))
|
|
m_process->GetTarget().RemoveBreakpointByID(m_dyld_handover_break_id);
|
|
m_dyld_handover_break_id = LLDB_INVALID_BREAK_ID;
|
|
}
|
|
|
|
addr_t
|
|
DynamicLoaderMacOS::GetDyldLockVariableAddressFromModule(Module *module) {
|
|
SymbolContext sc;
|
|
Target &target = m_process->GetTarget();
|
|
if (Symtab *symtab = module->GetSymtab()) {
|
|
std::vector<uint32_t> match_indexes;
|
|
ConstString g_symbol_name("_dyld_global_lock_held");
|
|
uint32_t num_matches = 0;
|
|
num_matches =
|
|
symtab->AppendSymbolIndexesWithName(g_symbol_name, match_indexes);
|
|
if (num_matches == 1) {
|
|
Symbol *symbol = symtab->SymbolAtIndex(match_indexes[0]);
|
|
if (symbol &&
|
|
(symbol->ValueIsAddress() || symbol->GetAddressRef().IsValid())) {
|
|
return symbol->GetAddressRef().GetOpcodeLoadAddress(&target);
|
|
}
|
|
}
|
|
}
|
|
return LLDB_INVALID_ADDRESS;
|
|
}
|
|
|
|
// Look for this symbol:
|
|
//
|
|
// int __attribute__((visibility("hidden"))) _dyld_global_lock_held =
|
|
// 0;
|
|
//
|
|
// in libdyld.dylib.
|
|
Status DynamicLoaderMacOS::CanLoadImage() {
|
|
Status error;
|
|
addr_t symbol_address = LLDB_INVALID_ADDRESS;
|
|
ConstString g_libdyld_name("libdyld.dylib");
|
|
Target &target = m_process->GetTarget();
|
|
const ModuleList &target_modules = target.GetImages();
|
|
std::lock_guard<std::recursive_mutex> guard(target_modules.GetMutex());
|
|
|
|
// Find any modules named "libdyld.dylib" and look for the symbol there first
|
|
for (ModuleSP module_sp : target.GetImages().ModulesNoLocking()) {
|
|
if (module_sp) {
|
|
if (module_sp->GetFileSpec().GetFilename() == g_libdyld_name) {
|
|
symbol_address = GetDyldLockVariableAddressFromModule(module_sp.get());
|
|
if (symbol_address != LLDB_INVALID_ADDRESS)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Search through all modules looking for the symbol in them
|
|
if (symbol_address == LLDB_INVALID_ADDRESS) {
|
|
for (ModuleSP module_sp : target.GetImages().Modules()) {
|
|
if (module_sp) {
|
|
addr_t symbol_address =
|
|
GetDyldLockVariableAddressFromModule(module_sp.get());
|
|
if (symbol_address != LLDB_INVALID_ADDRESS)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Default assumption is that it is OK to load images. Only say that we
|
|
// cannot load images if we find the symbol in libdyld and it indicates that
|
|
// we cannot.
|
|
|
|
if (symbol_address != LLDB_INVALID_ADDRESS) {
|
|
{
|
|
int lock_held =
|
|
m_process->ReadUnsignedIntegerFromMemory(symbol_address, 4, 0, error);
|
|
if (lock_held != 0) {
|
|
error.SetErrorString("dyld lock held - unsafe to load images.");
|
|
}
|
|
}
|
|
} else {
|
|
// If we were unable to find _dyld_global_lock_held in any modules, or it
|
|
// is not loaded into memory yet, we may be at process startup (sitting at
|
|
// _dyld_start) - so we should not allow dlopen calls. But if we found more
|
|
// than one module then we are clearly past _dyld_start so in that case
|
|
// we'll default to "it's safe".
|
|
if (target.GetImages().GetSize() <= 1)
|
|
error.SetErrorString("could not find the dyld library or "
|
|
"the dyld lock symbol");
|
|
}
|
|
return error;
|
|
}
|
|
|
|
bool DynamicLoaderMacOS::GetSharedCacheInformation(
|
|
lldb::addr_t &base_address, UUID &uuid, LazyBool &using_shared_cache,
|
|
LazyBool &private_shared_cache) {
|
|
base_address = LLDB_INVALID_ADDRESS;
|
|
uuid.Clear();
|
|
using_shared_cache = eLazyBoolCalculate;
|
|
private_shared_cache = eLazyBoolCalculate;
|
|
|
|
if (m_process) {
|
|
StructuredData::ObjectSP info = m_process->GetSharedCacheInfo();
|
|
StructuredData::Dictionary *info_dict = nullptr;
|
|
if (info.get() && info->GetAsDictionary()) {
|
|
info_dict = info->GetAsDictionary();
|
|
}
|
|
|
|
// {"shared_cache_base_address":140735683125248,"shared_cache_uuid
|
|
// ":"DDB8D70C-
|
|
// C9A2-3561-B2C8-BE48A4F33F96","no_shared_cache":false,"shared_cache_private_cache":false}
|
|
|
|
if (info_dict && info_dict->HasKey("shared_cache_uuid") &&
|
|
info_dict->HasKey("no_shared_cache") &&
|
|
info_dict->HasKey("shared_cache_base_address")) {
|
|
base_address = info_dict->GetValueForKey("shared_cache_base_address")
|
|
->GetIntegerValue(LLDB_INVALID_ADDRESS);
|
|
std::string uuid_str = std::string(
|
|
info_dict->GetValueForKey("shared_cache_uuid")->GetStringValue());
|
|
if (!uuid_str.empty())
|
|
uuid.SetFromStringRef(uuid_str);
|
|
if (!info_dict->GetValueForKey("no_shared_cache")->GetBooleanValue())
|
|
using_shared_cache = eLazyBoolYes;
|
|
else
|
|
using_shared_cache = eLazyBoolNo;
|
|
if (info_dict->GetValueForKey("shared_cache_private_cache")
|
|
->GetBooleanValue())
|
|
private_shared_cache = eLazyBoolYes;
|
|
else
|
|
private_shared_cache = eLazyBoolNo;
|
|
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void DynamicLoaderMacOS::Initialize() {
|
|
PluginManager::RegisterPlugin(GetPluginNameStatic(),
|
|
GetPluginDescriptionStatic(), CreateInstance);
|
|
}
|
|
|
|
void DynamicLoaderMacOS::Terminate() {
|
|
PluginManager::UnregisterPlugin(CreateInstance);
|
|
}
|
|
|
|
llvm::StringRef DynamicLoaderMacOS::GetPluginDescriptionStatic() {
|
|
return "Dynamic loader plug-in that watches for shared library loads/unloads "
|
|
"in MacOSX user processes.";
|
|
}
|