diff options
Diffstat (limited to 'source/Target/Thread.cpp')
| -rw-r--r-- | source/Target/Thread.cpp | 4067 |
1 files changed, 1869 insertions, 2198 deletions
diff --git a/source/Target/Thread.cpp b/source/Target/Thread.cpp index 40c137c4d521..5ead59052856 100644 --- a/source/Target/Thread.cpp +++ b/source/Target/Thread.cpp @@ -11,15 +11,18 @@ // C++ Includes // Other libraries and framework includes // Project includes +#include "lldb/Target/Thread.h" +#include "Plugins/Process/Utility/UnwindLLDB.h" +#include "Plugins/Process/Utility/UnwindMacOSXFrameBackchain.h" #include "lldb/Breakpoint/BreakpointLocation.h" #include "lldb/Core/Debugger.h" -#include "lldb/Core/Log.h" #include "lldb/Core/FormatEntity.h" +#include "lldb/Core/Log.h" #include "lldb/Core/Module.h" +#include "lldb/Core/RegularExpression.h" #include "lldb/Core/State.h" #include "lldb/Core/Stream.h" #include "lldb/Core/StreamString.h" -#include "lldb/Core/RegularExpression.h" #include "lldb/Core/ValueObject.h" #include "lldb/Host/Host.h" #include "lldb/Interpreter/OptionValueFileSpecList.h" @@ -34,2476 +37,2144 @@ #include "lldb/Target/StopInfo.h" #include "lldb/Target/SystemRuntime.h" #include "lldb/Target/Target.h" -#include "lldb/Target/Thread.h" #include "lldb/Target/ThreadPlan.h" -#include "lldb/Target/ThreadPlanCallFunction.h" #include "lldb/Target/ThreadPlanBase.h" +#include "lldb/Target/ThreadPlanCallFunction.h" #include "lldb/Target/ThreadPlanPython.h" +#include "lldb/Target/ThreadPlanRunToAddress.h" +#include "lldb/Target/ThreadPlanStepInRange.h" #include "lldb/Target/ThreadPlanStepInstruction.h" #include "lldb/Target/ThreadPlanStepOut.h" #include "lldb/Target/ThreadPlanStepOverBreakpoint.h" -#include "lldb/Target/ThreadPlanStepThrough.h" -#include "lldb/Target/ThreadPlanStepInRange.h" #include "lldb/Target/ThreadPlanStepOverRange.h" -#include "lldb/Target/ThreadPlanRunToAddress.h" +#include "lldb/Target/ThreadPlanStepThrough.h" #include "lldb/Target/ThreadPlanStepUntil.h" #include "lldb/Target/ThreadSpec.h" #include "lldb/Target/Unwind.h" -#include "Plugins/Process/Utility/UnwindLLDB.h" -#include "Plugins/Process/Utility/UnwindMacOSXFrameBackchain.h" using namespace lldb; using namespace lldb_private; -const ThreadPropertiesSP & -Thread::GetGlobalProperties() -{ - // NOTE: intentional leak so we don't crash if global destructor chain gets - // called as other threads still use the result of this function - static ThreadPropertiesSP *g_settings_sp_ptr = nullptr; - static std::once_flag g_once_flag; - std::call_once(g_once_flag, []() { - g_settings_sp_ptr = new ThreadPropertiesSP(new ThreadProperties (true)); - }); - return *g_settings_sp_ptr; -} - -static PropertyDefinition -g_properties[] = -{ - { "step-in-avoid-nodebug", OptionValue::eTypeBoolean, true, true, nullptr, nullptr, "If true, step-in will not stop in functions with no debug information." }, - { "step-out-avoid-nodebug", OptionValue::eTypeBoolean, true, false, nullptr, nullptr, "If true, when step-in/step-out/step-over leave the current frame, they will continue to step out till they come to a function with " - "debug information. Passing a frame argument to step-out will override this option." }, - { "step-avoid-regexp", OptionValue::eTypeRegex , true , 0, "^std::", nullptr, "A regular expression defining functions step-in won't stop in." }, - { "step-avoid-libraries", OptionValue::eTypeFileSpecList , true , 0, nullptr, nullptr, "A list of libraries that source stepping won't stop in." }, - { "trace-thread", OptionValue::eTypeBoolean, false, false, nullptr, nullptr, "If true, this thread will single-step and log execution." }, - { nullptr , OptionValue::eTypeInvalid, false, 0 , nullptr, nullptr, nullptr } -}; +const ThreadPropertiesSP &Thread::GetGlobalProperties() { + // NOTE: intentional leak so we don't crash if global destructor chain gets + // called as other threads still use the result of this function + static ThreadPropertiesSP *g_settings_sp_ptr = + new ThreadPropertiesSP(new ThreadProperties(true)); + return *g_settings_sp_ptr; +} + +static PropertyDefinition g_properties[] = { + {"step-in-avoid-nodebug", OptionValue::eTypeBoolean, true, true, nullptr, + nullptr, + "If true, step-in will not stop in functions with no debug information."}, + {"step-out-avoid-nodebug", OptionValue::eTypeBoolean, true, false, nullptr, + nullptr, "If true, when step-in/step-out/step-over leave the current " + "frame, they will continue to step out till they come to a " + "function with " + "debug information. Passing a frame argument to step-out will " + "override this option."}, + {"step-avoid-regexp", OptionValue::eTypeRegex, true, 0, "^std::", nullptr, + "A regular expression defining functions step-in won't stop in."}, + {"step-avoid-libraries", OptionValue::eTypeFileSpecList, true, 0, nullptr, + nullptr, "A list of libraries that source stepping won't stop in."}, + {"trace-thread", OptionValue::eTypeBoolean, false, false, nullptr, nullptr, + "If true, this thread will single-step and log execution."}, + {nullptr, OptionValue::eTypeInvalid, false, 0, nullptr, nullptr, nullptr}}; enum { - ePropertyStepInAvoidsNoDebug, - ePropertyStepOutAvoidsNoDebug, - ePropertyStepAvoidRegex, - ePropertyStepAvoidLibraries, - ePropertyEnableThreadTrace + ePropertyStepInAvoidsNoDebug, + ePropertyStepOutAvoidsNoDebug, + ePropertyStepAvoidRegex, + ePropertyStepAvoidLibraries, + ePropertyEnableThreadTrace }; -class ThreadOptionValueProperties : public OptionValueProperties -{ +class ThreadOptionValueProperties : public OptionValueProperties { public: - ThreadOptionValueProperties (const ConstString &name) : - OptionValueProperties (name) - { - } - - // This constructor is used when creating ThreadOptionValueProperties when it - // is part of a new lldb_private::Thread instance. It will copy all current - // global property values as needed - ThreadOptionValueProperties (ThreadProperties *global_properties) : - OptionValueProperties(*global_properties->GetValueProperties()) - { - } - - const Property * - GetPropertyAtIndex(const ExecutionContext *exe_ctx, bool will_modify, uint32_t idx) const override - { - // When getting the value for a key from the thread options, we will always - // try and grab the setting from the current thread if there is one. Else we just - // use the one from this instance. - if (exe_ctx) - { - Thread *thread = exe_ctx->GetThreadPtr(); - if (thread) - { - ThreadOptionValueProperties *instance_properties = static_cast<ThreadOptionValueProperties *>(thread->GetValueProperties().get()); - if (this != instance_properties) - return instance_properties->ProtectedGetPropertyAtIndex (idx); - } - } - return ProtectedGetPropertyAtIndex (idx); - } + ThreadOptionValueProperties(const ConstString &name) + : OptionValueProperties(name) {} + + // This constructor is used when creating ThreadOptionValueProperties when it + // is part of a new lldb_private::Thread instance. It will copy all current + // global property values as needed + ThreadOptionValueProperties(ThreadProperties *global_properties) + : OptionValueProperties(*global_properties->GetValueProperties()) {} + + const Property *GetPropertyAtIndex(const ExecutionContext *exe_ctx, + bool will_modify, + uint32_t idx) const override { + // When getting the value for a key from the thread options, we will always + // try and grab the setting from the current thread if there is one. Else we + // just + // use the one from this instance. + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) { + ThreadOptionValueProperties *instance_properties = + static_cast<ThreadOptionValueProperties *>( + thread->GetValueProperties().get()); + if (this != instance_properties) + return instance_properties->ProtectedGetPropertyAtIndex(idx); + } + } + return ProtectedGetPropertyAtIndex(idx); + } }; -ThreadProperties::ThreadProperties (bool is_global) : - Properties () -{ - if (is_global) - { - m_collection_sp.reset (new ThreadOptionValueProperties(ConstString("thread"))); - m_collection_sp->Initialize(g_properties); - } - else - m_collection_sp.reset (new ThreadOptionValueProperties(Thread::GetGlobalProperties().get())); +ThreadProperties::ThreadProperties(bool is_global) : Properties() { + if (is_global) { + m_collection_sp.reset( + new ThreadOptionValueProperties(ConstString("thread"))); + m_collection_sp->Initialize(g_properties); + } else + m_collection_sp.reset( + new ThreadOptionValueProperties(Thread::GetGlobalProperties().get())); } ThreadProperties::~ThreadProperties() = default; -const RegularExpression * -ThreadProperties::GetSymbolsToAvoidRegexp() -{ - const uint32_t idx = ePropertyStepAvoidRegex; - return m_collection_sp->GetPropertyAtIndexAsOptionValueRegex(nullptr, idx); +const RegularExpression *ThreadProperties::GetSymbolsToAvoidRegexp() { + const uint32_t idx = ePropertyStepAvoidRegex; + return m_collection_sp->GetPropertyAtIndexAsOptionValueRegex(nullptr, idx); } -FileSpecList & -ThreadProperties::GetLibrariesToAvoid() const -{ - const uint32_t idx = ePropertyStepAvoidLibraries; - OptionValueFileSpecList *option_value = m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpecList(nullptr, false, idx); - assert(option_value); - return option_value->GetCurrentValue(); +FileSpecList &ThreadProperties::GetLibrariesToAvoid() const { + const uint32_t idx = ePropertyStepAvoidLibraries; + OptionValueFileSpecList *option_value = + m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpecList(nullptr, + false, idx); + assert(option_value); + return option_value->GetCurrentValue(); } -bool -ThreadProperties::GetTraceEnabledState() const -{ - const uint32_t idx = ePropertyEnableThreadTrace; - return m_collection_sp->GetPropertyAtIndexAsBoolean(nullptr, idx, g_properties[idx].default_uint_value != 0); +bool ThreadProperties::GetTraceEnabledState() const { + const uint32_t idx = ePropertyEnableThreadTrace; + return m_collection_sp->GetPropertyAtIndexAsBoolean( + nullptr, idx, g_properties[idx].default_uint_value != 0); } -bool -ThreadProperties::GetStepInAvoidsNoDebug() const -{ - const uint32_t idx = ePropertyStepInAvoidsNoDebug; - return m_collection_sp->GetPropertyAtIndexAsBoolean(nullptr, idx, g_properties[idx].default_uint_value != 0); +bool ThreadProperties::GetStepInAvoidsNoDebug() const { + const uint32_t idx = ePropertyStepInAvoidsNoDebug; + return m_collection_sp->GetPropertyAtIndexAsBoolean( + nullptr, idx, g_properties[idx].default_uint_value != 0); } -bool -ThreadProperties::GetStepOutAvoidsNoDebug() const -{ - const uint32_t idx = ePropertyStepOutAvoidsNoDebug; - return m_collection_sp->GetPropertyAtIndexAsBoolean(nullptr, idx, g_properties[idx].default_uint_value != 0); +bool ThreadProperties::GetStepOutAvoidsNoDebug() const { + const uint32_t idx = ePropertyStepOutAvoidsNoDebug; + return m_collection_sp->GetPropertyAtIndexAsBoolean( + nullptr, idx, g_properties[idx].default_uint_value != 0); } //------------------------------------------------------------------ // Thread Event Data //------------------------------------------------------------------ -const ConstString & -Thread::ThreadEventData::GetFlavorString () -{ - static ConstString g_flavor ("Thread::ThreadEventData"); - return g_flavor; +const ConstString &Thread::ThreadEventData::GetFlavorString() { + static ConstString g_flavor("Thread::ThreadEventData"); + return g_flavor; } -Thread::ThreadEventData::ThreadEventData (const lldb::ThreadSP thread_sp) : - m_thread_sp (thread_sp), - m_stack_id () -{ -} +Thread::ThreadEventData::ThreadEventData(const lldb::ThreadSP thread_sp) + : m_thread_sp(thread_sp), m_stack_id() {} -Thread::ThreadEventData::ThreadEventData (const lldb::ThreadSP thread_sp, const StackID &stack_id) : - m_thread_sp (thread_sp), - m_stack_id (stack_id) -{ -} +Thread::ThreadEventData::ThreadEventData(const lldb::ThreadSP thread_sp, + const StackID &stack_id) + : m_thread_sp(thread_sp), m_stack_id(stack_id) {} -Thread::ThreadEventData::ThreadEventData () : - m_thread_sp (), - m_stack_id () -{ -} +Thread::ThreadEventData::ThreadEventData() : m_thread_sp(), m_stack_id() {} Thread::ThreadEventData::~ThreadEventData() = default; -void -Thread::ThreadEventData::Dump (Stream *s) const -{ -} +void Thread::ThreadEventData::Dump(Stream *s) const {} const Thread::ThreadEventData * -Thread::ThreadEventData::GetEventDataFromEvent (const Event *event_ptr) -{ - if (event_ptr) - { - const EventData *event_data = event_ptr->GetData(); - if (event_data && event_data->GetFlavor() == ThreadEventData::GetFlavorString()) - return static_cast <const ThreadEventData *> (event_ptr->GetData()); - } - return nullptr; +Thread::ThreadEventData::GetEventDataFromEvent(const Event *event_ptr) { + if (event_ptr) { + const EventData *event_data = event_ptr->GetData(); + if (event_data && + event_data->GetFlavor() == ThreadEventData::GetFlavorString()) + return static_cast<const ThreadEventData *>(event_ptr->GetData()); + } + return nullptr; } -ThreadSP -Thread::ThreadEventData::GetThreadFromEvent (const Event *event_ptr) -{ - ThreadSP thread_sp; - const ThreadEventData *event_data = GetEventDataFromEvent (event_ptr); - if (event_data) - thread_sp = event_data->GetThread(); - return thread_sp; +ThreadSP Thread::ThreadEventData::GetThreadFromEvent(const Event *event_ptr) { + ThreadSP thread_sp; + const ThreadEventData *event_data = GetEventDataFromEvent(event_ptr); + if (event_data) + thread_sp = event_data->GetThread(); + return thread_sp; } -StackID -Thread::ThreadEventData::GetStackIDFromEvent (const Event *event_ptr) -{ - StackID stack_id; - const ThreadEventData *event_data = GetEventDataFromEvent (event_ptr); - if (event_data) - stack_id = event_data->GetStackID(); - return stack_id; +StackID Thread::ThreadEventData::GetStackIDFromEvent(const Event *event_ptr) { + StackID stack_id; + const ThreadEventData *event_data = GetEventDataFromEvent(event_ptr); + if (event_data) + stack_id = event_data->GetStackID(); + return stack_id; } StackFrameSP -Thread::ThreadEventData::GetStackFrameFromEvent (const Event *event_ptr) -{ - const ThreadEventData *event_data = GetEventDataFromEvent (event_ptr); - StackFrameSP frame_sp; - if (event_data) - { - ThreadSP thread_sp = event_data->GetThread(); - if (thread_sp) - { - frame_sp = thread_sp->GetStackFrameList()->GetFrameWithStackID (event_data->GetStackID()); - } +Thread::ThreadEventData::GetStackFrameFromEvent(const Event *event_ptr) { + const ThreadEventData *event_data = GetEventDataFromEvent(event_ptr); + StackFrameSP frame_sp; + if (event_data) { + ThreadSP thread_sp = event_data->GetThread(); + if (thread_sp) { + frame_sp = thread_sp->GetStackFrameList()->GetFrameWithStackID( + event_data->GetStackID()); } - return frame_sp; + } + return frame_sp; } //------------------------------------------------------------------ // Thread class //------------------------------------------------------------------ -ConstString & -Thread::GetStaticBroadcasterClass () -{ - static ConstString class_name ("lldb.thread"); - return class_name; +ConstString &Thread::GetStaticBroadcasterClass() { + static ConstString class_name("lldb.thread"); + return class_name; } Thread::Thread(Process &process, lldb::tid_t tid, bool use_invalid_index_id) - : ThreadProperties(false), - UserID(tid), + : ThreadProperties(false), UserID(tid), Broadcaster(process.GetTarget().GetDebugger().GetBroadcasterManager(), Thread::GetStaticBroadcasterClass().AsCString()), - m_process_wp(process.shared_from_this()), - m_stop_info_sp(), - m_stop_info_stop_id(0), - m_stop_info_override_stop_id(0), - m_index_id(use_invalid_index_id ? LLDB_INVALID_INDEX32 : process.GetNextThreadIndexID(tid)), - m_reg_context_sp(), - m_state(eStateUnloaded), - m_state_mutex(), - m_plan_stack(), - m_completed_plan_stack(), - m_frame_mutex(), - m_curr_frames_sp(), - m_prev_frames_sp(), + m_process_wp(process.shared_from_this()), m_stop_info_sp(), + m_stop_info_stop_id(0), m_stop_info_override_stop_id(0), + m_index_id(use_invalid_index_id ? LLDB_INVALID_INDEX32 + : process.GetNextThreadIndexID(tid)), + m_reg_context_sp(), m_state(eStateUnloaded), m_state_mutex(), + m_plan_stack(), m_completed_plan_stack(), m_frame_mutex(), + m_curr_frames_sp(), m_prev_frames_sp(), m_resume_signal(LLDB_INVALID_SIGNAL_NUMBER), - m_resume_state(eStateRunning), - m_temporary_resume_state(eStateRunning), - m_unwinder_ap(), - m_destroy_called(false), + m_resume_state(eStateRunning), m_temporary_resume_state(eStateRunning), + m_unwinder_ap(), m_destroy_called(false), m_override_should_notify(eLazyBoolCalculate), - m_extended_info_fetched(false), - m_extended_info() -{ - Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT)); - if (log) - log->Printf("%p Thread::Thread(tid = 0x%4.4" PRIx64 ")", static_cast<void *>(this), GetID()); - - CheckInWithManager(); - QueueFundamentalPlan(true); -} - -Thread::~Thread() -{ - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); - if (log) - log->Printf ("%p Thread::~Thread(tid = 0x%4.4" PRIx64 ")", - static_cast<void*>(this), GetID()); - /// If you hit this assert, it means your derived class forgot to call DoDestroy in its destructor. - assert (m_destroy_called); -} - -void -Thread::DestroyThread () -{ - // Tell any plans on the plan stacks that the thread is being destroyed since - // any plans that have a thread go away in the middle of might need - // to do cleanup, or in some cases NOT do cleanup... - for (auto plan : m_plan_stack) - plan->ThreadDestroyed(); - - for (auto plan : m_discarded_plan_stack) - plan->ThreadDestroyed(); - - for (auto plan : m_completed_plan_stack) - plan->ThreadDestroyed(); - - m_destroy_called = true; - m_plan_stack.clear(); - m_discarded_plan_stack.clear(); - m_completed_plan_stack.clear(); - - // Push a ThreadPlanNull on the plan stack. That way we can continue assuming that the - // plan stack is never empty, but if somebody errantly asks questions of a destroyed thread - // without checking first whether it is destroyed, they won't crash. - ThreadPlanSP null_plan_sp(new ThreadPlanNull (*this)); - m_plan_stack.push_back (null_plan_sp); - - m_stop_info_sp.reset(); - m_reg_context_sp.reset(); - m_unwinder_ap.reset(); - std::lock_guard<std::recursive_mutex> guard(m_frame_mutex); - m_curr_frames_sp.reset(); - m_prev_frames_sp.reset(); -} - -void -Thread::BroadcastSelectedFrameChange(StackID &new_frame_id) -{ - if (EventTypeHasListeners(eBroadcastBitSelectedFrameChanged)) - BroadcastEvent(eBroadcastBitSelectedFrameChanged, new ThreadEventData (this->shared_from_this(), new_frame_id)); -} - -lldb::StackFrameSP -Thread::GetSelectedFrame() -{ - StackFrameListSP stack_frame_list_sp(GetStackFrameList()); - StackFrameSP frame_sp = stack_frame_list_sp->GetFrameAtIndex (stack_frame_list_sp->GetSelectedFrameIndex()); - FunctionOptimizationWarning (frame_sp.get()); - return frame_sp; -} - -uint32_t -Thread::SetSelectedFrame (lldb_private::StackFrame *frame, bool broadcast) -{ - uint32_t ret_value = GetStackFrameList()->SetSelectedFrame(frame); + m_extended_info_fetched(false), m_extended_info() { + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT)); + if (log) + log->Printf("%p Thread::Thread(tid = 0x%4.4" PRIx64 ")", + static_cast<void *>(this), GetID()); + + CheckInWithManager(); + QueueFundamentalPlan(true); +} + +Thread::~Thread() { + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT)); + if (log) + log->Printf("%p Thread::~Thread(tid = 0x%4.4" PRIx64 ")", + static_cast<void *>(this), GetID()); + /// If you hit this assert, it means your derived class forgot to call + /// DoDestroy in its destructor. + assert(m_destroy_called); +} + +void Thread::DestroyThread() { + // Tell any plans on the plan stacks that the thread is being destroyed since + // any plans that have a thread go away in the middle of might need + // to do cleanup, or in some cases NOT do cleanup... + for (auto plan : m_plan_stack) + plan->ThreadDestroyed(); + + for (auto plan : m_discarded_plan_stack) + plan->ThreadDestroyed(); + + for (auto plan : m_completed_plan_stack) + plan->ThreadDestroyed(); + + m_destroy_called = true; + m_plan_stack.clear(); + m_discarded_plan_stack.clear(); + m_completed_plan_stack.clear(); + + // Push a ThreadPlanNull on the plan stack. That way we can continue assuming + // that the + // plan stack is never empty, but if somebody errantly asks questions of a + // destroyed thread + // without checking first whether it is destroyed, they won't crash. + ThreadPlanSP null_plan_sp(new ThreadPlanNull(*this)); + m_plan_stack.push_back(null_plan_sp); + + m_stop_info_sp.reset(); + m_reg_context_sp.reset(); + m_unwinder_ap.reset(); + std::lock_guard<std::recursive_mutex> guard(m_frame_mutex); + m_curr_frames_sp.reset(); + m_prev_frames_sp.reset(); +} + +void Thread::BroadcastSelectedFrameChange(StackID &new_frame_id) { + if (EventTypeHasListeners(eBroadcastBitSelectedFrameChanged)) + BroadcastEvent(eBroadcastBitSelectedFrameChanged, + new ThreadEventData(this->shared_from_this(), new_frame_id)); +} + +lldb::StackFrameSP Thread::GetSelectedFrame() { + StackFrameListSP stack_frame_list_sp(GetStackFrameList()); + StackFrameSP frame_sp = stack_frame_list_sp->GetFrameAtIndex( + stack_frame_list_sp->GetSelectedFrameIndex()); + FunctionOptimizationWarning(frame_sp.get()); + return frame_sp; +} + +uint32_t Thread::SetSelectedFrame(lldb_private::StackFrame *frame, + bool broadcast) { + uint32_t ret_value = GetStackFrameList()->SetSelectedFrame(frame); + if (broadcast) + BroadcastSelectedFrameChange(frame->GetStackID()); + FunctionOptimizationWarning(frame); + return ret_value; +} + +bool Thread::SetSelectedFrameByIndex(uint32_t frame_idx, bool broadcast) { + StackFrameSP frame_sp(GetStackFrameList()->GetFrameAtIndex(frame_idx)); + if (frame_sp) { + GetStackFrameList()->SetSelectedFrame(frame_sp.get()); if (broadcast) - BroadcastSelectedFrameChange(frame->GetStackID()); - FunctionOptimizationWarning (frame); - return ret_value; -} - -bool -Thread::SetSelectedFrameByIndex (uint32_t frame_idx, bool broadcast) -{ - StackFrameSP frame_sp(GetStackFrameList()->GetFrameAtIndex (frame_idx)); - if (frame_sp) - { - GetStackFrameList()->SetSelectedFrame(frame_sp.get()); - if (broadcast) - BroadcastSelectedFrameChange(frame_sp->GetStackID()); - FunctionOptimizationWarning (frame_sp.get()); - return true; - } - else - return false; -} - -bool -Thread::SetSelectedFrameByIndexNoisily (uint32_t frame_idx, Stream &output_stream) -{ - const bool broadcast = true; - bool success = SetSelectedFrameByIndex (frame_idx, broadcast); - if (success) - { - StackFrameSP frame_sp = GetSelectedFrame(); - if (frame_sp) - { - bool already_shown = false; - SymbolContext frame_sc(frame_sp->GetSymbolContext(eSymbolContextLineEntry)); - if (GetProcess()->GetTarget().GetDebugger().GetUseExternalEditor() && frame_sc.line_entry.file && frame_sc.line_entry.line != 0) - { - already_shown = Host::OpenFileInExternalEditor (frame_sc.line_entry.file, frame_sc.line_entry.line); - } - - bool show_frame_info = true; - bool show_source = !already_shown; - FunctionOptimizationWarning (frame_sp.get()); - return frame_sp->GetStatus (output_stream, show_frame_info, show_source); - } - return false; - } - else - return false; + BroadcastSelectedFrameChange(frame_sp->GetStackID()); + FunctionOptimizationWarning(frame_sp.get()); + return true; + } else + return false; } -void -Thread::FunctionOptimizationWarning (StackFrame *frame) -{ - if (frame && frame->HasDebugInformation() && GetProcess()->GetWarningsOptimization()) - { - SymbolContext sc = frame->GetSymbolContext (eSymbolContextFunction | eSymbolContextModule); - GetProcess()->PrintWarningOptimization (sc); +bool Thread::SetSelectedFrameByIndexNoisily(uint32_t frame_idx, + Stream &output_stream) { + const bool broadcast = true; + bool success = SetSelectedFrameByIndex(frame_idx, broadcast); + if (success) { + StackFrameSP frame_sp = GetSelectedFrame(); + if (frame_sp) { + bool already_shown = false; + SymbolContext frame_sc( + frame_sp->GetSymbolContext(eSymbolContextLineEntry)); + if (GetProcess()->GetTarget().GetDebugger().GetUseExternalEditor() && + frame_sc.line_entry.file && frame_sc.line_entry.line != 0) { + already_shown = Host::OpenFileInExternalEditor( + frame_sc.line_entry.file, frame_sc.line_entry.line); + } + + bool show_frame_info = true; + bool show_source = !already_shown; + FunctionOptimizationWarning(frame_sp.get()); + return frame_sp->GetStatus(output_stream, show_frame_info, show_source); } + return false; + } else + return false; } -lldb::StopInfoSP -Thread::GetStopInfo () -{ - if (m_destroy_called) - return m_stop_info_sp; - - ThreadPlanSP plan_sp (GetCompletedPlan()); - ProcessSP process_sp (GetProcess()); - const uint32_t stop_id = process_sp ? process_sp->GetStopID() : UINT32_MAX; - if (plan_sp && plan_sp->PlanSucceeded()) - { - return StopInfo::CreateStopReasonWithPlan (plan_sp, GetReturnValueObject(), GetExpressionVariable()); - } - else - { - if ((m_stop_info_stop_id == stop_id) || // Stop info is valid, just return what we have (even if empty) - (m_stop_info_sp && m_stop_info_sp->IsValid())) // Stop info is valid, just return what we have - { - return m_stop_info_sp; - } - else - { - GetPrivateStopInfo (); - return m_stop_info_sp; - } - } +void Thread::FunctionOptimizationWarning(StackFrame *frame) { + if (frame && frame->HasDebugInformation() && + GetProcess()->GetWarningsOptimization()) { + SymbolContext sc = + frame->GetSymbolContext(eSymbolContextFunction | eSymbolContextModule); + GetProcess()->PrintWarningOptimization(sc); + } } -lldb::StopInfoSP -Thread::GetPrivateStopInfo () -{ - if (m_destroy_called) - return m_stop_info_sp; - - ProcessSP process_sp (GetProcess()); - if (process_sp) - { - const uint32_t process_stop_id = process_sp->GetStopID(); - if (m_stop_info_stop_id != process_stop_id) - { - if (m_stop_info_sp) - { - if (m_stop_info_sp->IsValid() - || IsStillAtLastBreakpointHit() - || GetCurrentPlan()->IsVirtualStep()) - SetStopInfo (m_stop_info_sp); - else - m_stop_info_sp.reset(); - } - - if (!m_stop_info_sp) - { - if (!CalculateStopInfo()) - SetStopInfo (StopInfoSP()); - } - } +lldb::StopInfoSP Thread::GetStopInfo() { + if (m_destroy_called) + return m_stop_info_sp; - // The stop info can be manually set by calling Thread::SetStopInfo() - // prior to this function ever getting called, so we can't rely on - // "m_stop_info_stop_id != process_stop_id" as the condition for - // the if statement below, we must also check the stop info to see - // if we need to override it. See the header documentation in - // Process::GetStopInfoOverrideCallback() for more information on - // the stop info override callback. - if (m_stop_info_override_stop_id != process_stop_id) - { - m_stop_info_override_stop_id = process_stop_id; - if (m_stop_info_sp) - { - ArchSpec::StopInfoOverrideCallbackType callback = GetProcess()->GetStopInfoOverrideCallback(); - if (callback) - callback(*this); - } - } - } + ThreadPlanSP plan_sp(GetCompletedPlan()); + ProcessSP process_sp(GetProcess()); + const uint32_t stop_id = process_sp ? process_sp->GetStopID() : UINT32_MAX; + if (plan_sp && plan_sp->PlanSucceeded()) { + return StopInfo::CreateStopReasonWithPlan(plan_sp, GetReturnValueObject(), + GetExpressionVariable()); + } else { + if ((m_stop_info_stop_id == stop_id) || // Stop info is valid, just return + // what we have (even if empty) + (m_stop_info_sp && + m_stop_info_sp + ->IsValid())) // Stop info is valid, just return what we have + { + return m_stop_info_sp; + } else { + GetPrivateStopInfo(); + return m_stop_info_sp; + } + } +} + +lldb::StopInfoSP Thread::GetPrivateStopInfo() { + if (m_destroy_called) return m_stop_info_sp; -} -lldb::StopReason -Thread::GetStopReason() -{ - lldb::StopInfoSP stop_info_sp (GetStopInfo ()); - if (stop_info_sp) - return stop_info_sp->GetStopReason(); - return eStopReasonNone; + ProcessSP process_sp(GetProcess()); + if (process_sp) { + const uint32_t process_stop_id = process_sp->GetStopID(); + if (m_stop_info_stop_id != process_stop_id) { + if (m_stop_info_sp) { + if (m_stop_info_sp->IsValid() || IsStillAtLastBreakpointHit() || + GetCurrentPlan()->IsVirtualStep()) + SetStopInfo(m_stop_info_sp); + else + m_stop_info_sp.reset(); + } + + if (!m_stop_info_sp) { + if (!CalculateStopInfo()) + SetStopInfo(StopInfoSP()); + } + } + + // The stop info can be manually set by calling Thread::SetStopInfo() + // prior to this function ever getting called, so we can't rely on + // "m_stop_info_stop_id != process_stop_id" as the condition for + // the if statement below, we must also check the stop info to see + // if we need to override it. See the header documentation in + // Process::GetStopInfoOverrideCallback() for more information on + // the stop info override callback. + if (m_stop_info_override_stop_id != process_stop_id) { + m_stop_info_override_stop_id = process_stop_id; + if (m_stop_info_sp) { + ArchSpec::StopInfoOverrideCallbackType callback = + GetProcess()->GetStopInfoOverrideCallback(); + if (callback) + callback(*this); + } + } + } + return m_stop_info_sp; +} + +lldb::StopReason Thread::GetStopReason() { + lldb::StopInfoSP stop_info_sp(GetStopInfo()); + if (stop_info_sp) + return stop_info_sp->GetStopReason(); + return eStopReasonNone; +} + +bool Thread::StopInfoIsUpToDate() const { + ProcessSP process_sp(GetProcess()); + if (process_sp) + return m_stop_info_stop_id == process_sp->GetStopID(); + else + return true; // Process is no longer around so stop info is always up to + // date... +} + +void Thread::SetStopInfo(const lldb::StopInfoSP &stop_info_sp) { + m_stop_info_sp = stop_info_sp; + if (m_stop_info_sp) { + m_stop_info_sp->MakeStopInfoValid(); + // If we are overriding the ShouldReportStop, do that here: + if (m_override_should_notify != eLazyBoolCalculate) + m_stop_info_sp->OverrideShouldNotify(m_override_should_notify == + eLazyBoolYes); + } + + ProcessSP process_sp(GetProcess()); + if (process_sp) + m_stop_info_stop_id = process_sp->GetStopID(); + else + m_stop_info_stop_id = UINT32_MAX; + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_THREAD)); + if (log) + log->Printf("%p: tid = 0x%" PRIx64 ": stop info = %s (stop_id = %u)", + static_cast<void *>(this), GetID(), + stop_info_sp ? stop_info_sp->GetDescription() : "<NULL>", + m_stop_info_stop_id); +} + +void Thread::SetShouldReportStop(Vote vote) { + if (vote == eVoteNoOpinion) + return; + else { + m_override_should_notify = (vote == eVoteYes ? eLazyBoolYes : eLazyBoolNo); + if (m_stop_info_sp) + m_stop_info_sp->OverrideShouldNotify(m_override_should_notify == + eLazyBoolYes); + } } -bool -Thread::StopInfoIsUpToDate() const -{ - ProcessSP process_sp (GetProcess()); - if (process_sp) - return m_stop_info_stop_id == process_sp->GetStopID(); - else - return true; // Process is no longer around so stop info is always up to date... +void Thread::SetStopInfoToNothing() { + // Note, we can't just NULL out the private reason, or the native thread + // implementation will try to + // go calculate it again. For now, just set it to a Unix Signal with an + // invalid signal number. + SetStopInfo( + StopInfo::CreateStopReasonWithSignal(*this, LLDB_INVALID_SIGNAL_NUMBER)); } -void -Thread::SetStopInfo (const lldb::StopInfoSP &stop_info_sp) -{ - m_stop_info_sp = stop_info_sp; - if (m_stop_info_sp) - { - m_stop_info_sp->MakeStopInfoValid(); - // If we are overriding the ShouldReportStop, do that here: - if (m_override_should_notify != eLazyBoolCalculate) - m_stop_info_sp->OverrideShouldNotify (m_override_should_notify == eLazyBoolYes); - } - - ProcessSP process_sp (GetProcess()); - if (process_sp) - m_stop_info_stop_id = process_sp->GetStopID(); - else - m_stop_info_stop_id = UINT32_MAX; - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD)); - if (log) - log->Printf("%p: tid = 0x%" PRIx64 ": stop info = %s (stop_id = %u)", - static_cast<void*>(this), GetID(), - stop_info_sp ? stop_info_sp->GetDescription() : "<NULL>", - m_stop_info_stop_id); +bool Thread::ThreadStoppedForAReason(void) { + return (bool)GetPrivateStopInfo(); } -void -Thread::SetShouldReportStop (Vote vote) -{ - if (vote == eVoteNoOpinion) - return; - else - { - m_override_should_notify = (vote == eVoteYes ? eLazyBoolYes : eLazyBoolNo); - if (m_stop_info_sp) - m_stop_info_sp->OverrideShouldNotify (m_override_should_notify == eLazyBoolYes); +bool Thread::CheckpointThreadState(ThreadStateCheckpoint &saved_state) { + saved_state.register_backup_sp.reset(); + lldb::StackFrameSP frame_sp(GetStackFrameAtIndex(0)); + if (frame_sp) { + lldb::RegisterCheckpointSP reg_checkpoint_sp( + new RegisterCheckpoint(RegisterCheckpoint::Reason::eExpression)); + if (reg_checkpoint_sp) { + lldb::RegisterContextSP reg_ctx_sp(frame_sp->GetRegisterContext()); + if (reg_ctx_sp && reg_ctx_sp->ReadAllRegisterValues(*reg_checkpoint_sp)) + saved_state.register_backup_sp = reg_checkpoint_sp; } -} + } + if (!saved_state.register_backup_sp) + return false; -void -Thread::SetStopInfoToNothing() -{ - // Note, we can't just NULL out the private reason, or the native thread implementation will try to - // go calculate it again. For now, just set it to a Unix Signal with an invalid signal number. - SetStopInfo (StopInfo::CreateStopReasonWithSignal (*this, LLDB_INVALID_SIGNAL_NUMBER)); -} + saved_state.stop_info_sp = GetStopInfo(); + ProcessSP process_sp(GetProcess()); + if (process_sp) + saved_state.orig_stop_id = process_sp->GetStopID(); + saved_state.current_inlined_depth = GetCurrentInlinedDepth(); -bool -Thread::ThreadStoppedForAReason (void) -{ - return (bool) GetPrivateStopInfo (); + return true; } -bool -Thread::CheckpointThreadState (ThreadStateCheckpoint &saved_state) -{ - saved_state.register_backup_sp.reset(); - lldb::StackFrameSP frame_sp(GetStackFrameAtIndex (0)); - if (frame_sp) - { - lldb::RegisterCheckpointSP reg_checkpoint_sp(new RegisterCheckpoint(RegisterCheckpoint::Reason::eExpression)); - if (reg_checkpoint_sp) - { - lldb::RegisterContextSP reg_ctx_sp (frame_sp->GetRegisterContext()); - if (reg_ctx_sp && reg_ctx_sp->ReadAllRegisterValues (*reg_checkpoint_sp)) - saved_state.register_backup_sp = reg_checkpoint_sp; - } - } - if (!saved_state.register_backup_sp) - return false; - - saved_state.stop_info_sp = GetStopInfo(); - ProcessSP process_sp (GetProcess()); - if (process_sp) - saved_state.orig_stop_id = process_sp->GetStopID(); - saved_state.current_inlined_depth = GetCurrentInlinedDepth(); - - return true; -} +bool Thread::RestoreRegisterStateFromCheckpoint( + ThreadStateCheckpoint &saved_state) { + if (saved_state.register_backup_sp) { + lldb::StackFrameSP frame_sp(GetStackFrameAtIndex(0)); + if (frame_sp) { + lldb::RegisterContextSP reg_ctx_sp(frame_sp->GetRegisterContext()); + if (reg_ctx_sp) { + bool ret = + reg_ctx_sp->WriteAllRegisterValues(*saved_state.register_backup_sp); -bool -Thread::RestoreRegisterStateFromCheckpoint (ThreadStateCheckpoint &saved_state) -{ - if (saved_state.register_backup_sp) - { - lldb::StackFrameSP frame_sp(GetStackFrameAtIndex (0)); - if (frame_sp) - { - lldb::RegisterContextSP reg_ctx_sp (frame_sp->GetRegisterContext()); - if (reg_ctx_sp) - { - bool ret = reg_ctx_sp->WriteAllRegisterValues (*saved_state.register_backup_sp); - - // Clear out all stack frames as our world just changed. - ClearStackFrames(); - reg_ctx_sp->InvalidateIfNeeded(true); - if (m_unwinder_ap.get()) - m_unwinder_ap->Clear(); - return ret; + // Clear out all stack frames as our world just changed. + ClearStackFrames(); + reg_ctx_sp->InvalidateIfNeeded(true); + if (m_unwinder_ap.get()) + m_unwinder_ap->Clear(); + return ret; + } + } + } + return false; +} + +bool Thread::RestoreThreadStateFromCheckpoint( + ThreadStateCheckpoint &saved_state) { + if (saved_state.stop_info_sp) + saved_state.stop_info_sp->MakeStopInfoValid(); + SetStopInfo(saved_state.stop_info_sp); + GetStackFrameList()->SetCurrentInlinedDepth( + saved_state.current_inlined_depth); + return true; +} + +StateType Thread::GetState() const { + // If any other threads access this we will need a mutex for it + std::lock_guard<std::recursive_mutex> guard(m_state_mutex); + return m_state; +} + +void Thread::SetState(StateType state) { + std::lock_guard<std::recursive_mutex> guard(m_state_mutex); + m_state = state; +} + +void Thread::WillStop() { + ThreadPlan *current_plan = GetCurrentPlan(); + + // FIXME: I may decide to disallow threads with no plans. In which + // case this should go to an assert. + + if (!current_plan) + return; + + current_plan->WillStop(); +} + +void Thread::SetupForResume() { + if (GetResumeState() != eStateSuspended) { + // If we're at a breakpoint push the step-over breakpoint plan. Do this + // before + // telling the current plan it will resume, since we might change what the + // current + // plan is. + + lldb::RegisterContextSP reg_ctx_sp(GetRegisterContext()); + if (reg_ctx_sp) { + const addr_t thread_pc = reg_ctx_sp->GetPC(); + BreakpointSiteSP bp_site_sp = + GetProcess()->GetBreakpointSiteList().FindByAddress(thread_pc); + if (bp_site_sp) { + // Note, don't assume there's a ThreadPlanStepOverBreakpoint, the target + // may not require anything + // special to step over a breakpoint. + + ThreadPlan *cur_plan = GetCurrentPlan(); + + bool push_step_over_bp_plan = false; + if (cur_plan->GetKind() == ThreadPlan::eKindStepOverBreakpoint) { + ThreadPlanStepOverBreakpoint *bp_plan = + (ThreadPlanStepOverBreakpoint *)cur_plan; + if (bp_plan->GetBreakpointLoadAddress() != thread_pc) + push_step_over_bp_plan = true; + } else + push_step_over_bp_plan = true; + + if (push_step_over_bp_plan) { + ThreadPlanSP step_bp_plan_sp(new ThreadPlanStepOverBreakpoint(*this)); + if (step_bp_plan_sp) { + step_bp_plan_sp->SetPrivate(true); + + if (GetCurrentPlan()->RunState() != eStateStepping) { + ThreadPlanStepOverBreakpoint *step_bp_plan = + static_cast<ThreadPlanStepOverBreakpoint *>( + step_bp_plan_sp.get()); + step_bp_plan->SetAutoContinue(true); } + QueueThreadPlan(step_bp_plan_sp, false); + } } + } } - return false; + } } -bool -Thread::RestoreThreadStateFromCheckpoint (ThreadStateCheckpoint &saved_state) -{ - if (saved_state.stop_info_sp) - saved_state.stop_info_sp->MakeStopInfoValid(); - SetStopInfo(saved_state.stop_info_sp); - GetStackFrameList()->SetCurrentInlinedDepth (saved_state.current_inlined_depth); - return true; -} +bool Thread::ShouldResume(StateType resume_state) { + // At this point clear the completed plan stack. + m_completed_plan_stack.clear(); + m_discarded_plan_stack.clear(); + m_override_should_notify = eLazyBoolCalculate; -StateType -Thread::GetState() const -{ - // If any other threads access this we will need a mutex for it - std::lock_guard<std::recursive_mutex> guard(m_state_mutex); - return m_state; -} + StateType prev_resume_state = GetTemporaryResumeState(); -void -Thread::SetState(StateType state) -{ - std::lock_guard<std::recursive_mutex> guard(m_state_mutex); - m_state = state; -} + SetTemporaryResumeState(resume_state); -void -Thread::WillStop() -{ - ThreadPlan *current_plan = GetCurrentPlan(); + lldb::ThreadSP backing_thread_sp(GetBackingThread()); + if (backing_thread_sp) + backing_thread_sp->SetTemporaryResumeState(resume_state); - // FIXME: I may decide to disallow threads with no plans. In which - // case this should go to an assert. + // Make sure m_stop_info_sp is valid. Don't do this for threads we suspended + // in the previous run. + if (prev_resume_state != eStateSuspended) + GetPrivateStopInfo(); - if (!current_plan) - return; + // This is a little dubious, but we are trying to limit how often we actually + // fetch stop info from + // the target, 'cause that slows down single stepping. So assume that if we + // got to the point where + // we're about to resume, and we haven't yet had to fetch the stop reason, + // then it doesn't need to know + // about the fact that we are resuming... + const uint32_t process_stop_id = GetProcess()->GetStopID(); + if (m_stop_info_stop_id == process_stop_id && + (m_stop_info_sp && m_stop_info_sp->IsValid())) { + StopInfo *stop_info = GetPrivateStopInfo().get(); + if (stop_info) + stop_info->WillResume(resume_state); + } - current_plan->WillStop(); -} + // Tell all the plans that we are about to resume in case they need to clear + // any state. + // We distinguish between the plan on the top of the stack and the lower + // plans in case a plan needs to do any special business before it runs. -void -Thread::SetupForResume () -{ - if (GetResumeState() != eStateSuspended) - { - // If we're at a breakpoint push the step-over breakpoint plan. Do this before - // telling the current plan it will resume, since we might change what the current - // plan is. - - lldb::RegisterContextSP reg_ctx_sp (GetRegisterContext()); - if (reg_ctx_sp) - { - const addr_t thread_pc = reg_ctx_sp->GetPC(); - BreakpointSiteSP bp_site_sp = GetProcess()->GetBreakpointSiteList().FindByAddress(thread_pc); - if (bp_site_sp) - { - // Note, don't assume there's a ThreadPlanStepOverBreakpoint, the target may not require anything - // special to step over a breakpoint. - - ThreadPlan *cur_plan = GetCurrentPlan(); - - bool push_step_over_bp_plan = false; - if (cur_plan->GetKind() == ThreadPlan::eKindStepOverBreakpoint) - { - ThreadPlanStepOverBreakpoint *bp_plan = (ThreadPlanStepOverBreakpoint *)cur_plan; - if (bp_plan->GetBreakpointLoadAddress() != thread_pc) - push_step_over_bp_plan = true; - } - else - push_step_over_bp_plan = true; - - if (push_step_over_bp_plan) - { - ThreadPlanSP step_bp_plan_sp (new ThreadPlanStepOverBreakpoint (*this)); - if (step_bp_plan_sp) - { - step_bp_plan_sp->SetPrivate (true); - - if (GetCurrentPlan()->RunState() != eStateStepping) - { - ThreadPlanStepOverBreakpoint *step_bp_plan - = static_cast<ThreadPlanStepOverBreakpoint *>(step_bp_plan_sp.get()); - step_bp_plan->SetAutoContinue(true); - } - QueueThreadPlan (step_bp_plan_sp, false); - } - } - } - } - } -} + bool need_to_resume = false; + ThreadPlan *plan_ptr = GetCurrentPlan(); + if (plan_ptr) { + need_to_resume = plan_ptr->WillResume(resume_state, true); -bool -Thread::ShouldResume (StateType resume_state) -{ - // At this point clear the completed plan stack. - m_completed_plan_stack.clear(); - m_discarded_plan_stack.clear(); - m_override_should_notify = eLazyBoolCalculate; - - StateType prev_resume_state = GetTemporaryResumeState(); - - SetTemporaryResumeState(resume_state); - - lldb::ThreadSP backing_thread_sp (GetBackingThread ()); - if (backing_thread_sp) - backing_thread_sp->SetTemporaryResumeState(resume_state); - - // Make sure m_stop_info_sp is valid. Don't do this for threads we suspended in the previous run. - if (prev_resume_state != eStateSuspended) - GetPrivateStopInfo(); - - // This is a little dubious, but we are trying to limit how often we actually fetch stop info from - // the target, 'cause that slows down single stepping. So assume that if we got to the point where - // we're about to resume, and we haven't yet had to fetch the stop reason, then it doesn't need to know - // about the fact that we are resuming... - const uint32_t process_stop_id = GetProcess()->GetStopID(); - if (m_stop_info_stop_id == process_stop_id && - (m_stop_info_sp && m_stop_info_sp->IsValid())) - { - StopInfo *stop_info = GetPrivateStopInfo().get(); - if (stop_info) - stop_info->WillResume (resume_state); + while ((plan_ptr = GetPreviousPlan(plan_ptr)) != nullptr) { + plan_ptr->WillResume(resume_state, false); } - - // Tell all the plans that we are about to resume in case they need to clear any state. - // We distinguish between the plan on the top of the stack and the lower - // plans in case a plan needs to do any special business before it runs. - - bool need_to_resume = false; - ThreadPlan *plan_ptr = GetCurrentPlan(); - if (plan_ptr) - { - need_to_resume = plan_ptr->WillResume(resume_state, true); - while ((plan_ptr = GetPreviousPlan(plan_ptr)) != nullptr) - { - plan_ptr->WillResume (resume_state, false); - } - - // If the WillResume for the plan says we are faking a resume, then it will have set an appropriate stop info. - // In that case, don't reset it here. - - if (need_to_resume && resume_state != eStateSuspended) - { - m_stop_info_sp.reset(); - } - } + // If the WillResume for the plan says we are faking a resume, then it will + // have set an appropriate stop info. + // In that case, don't reset it here. - if (need_to_resume) - { - ClearStackFrames(); - // Let Thread subclasses do any special work they need to prior to resuming - WillResume (resume_state); + if (need_to_resume && resume_state != eStateSuspended) { + m_stop_info_sp.reset(); } + } - return need_to_resume; -} + if (need_to_resume) { + ClearStackFrames(); + // Let Thread subclasses do any special work they need to prior to resuming + WillResume(resume_state); + } -void -Thread::DidResume () -{ - SetResumeSignal (LLDB_INVALID_SIGNAL_NUMBER); + return need_to_resume; } -void -Thread::DidStop () -{ - SetState (eStateStopped); -} +void Thread::DidResume() { SetResumeSignal(LLDB_INVALID_SIGNAL_NUMBER); } -bool -Thread::ShouldStop (Event* event_ptr) -{ - ThreadPlan *current_plan = GetCurrentPlan(); +void Thread::DidStop() { SetState(eStateStopped); } - bool should_stop = true; +bool Thread::ShouldStop(Event *event_ptr) { + ThreadPlan *current_plan = GetCurrentPlan(); - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); + bool should_stop = true; - if (GetResumeState () == eStateSuspended) - { - if (log) - log->Printf ("Thread::%s for tid = 0x%4.4" PRIx64 " 0x%4.4" PRIx64 ", should_stop = 0 (ignore since thread was suspended)", - __FUNCTION__, GetID (), GetProtocolID()); - return false; - } - - if (GetTemporaryResumeState () == eStateSuspended) - { - if (log) - log->Printf ("Thread::%s for tid = 0x%4.4" PRIx64 " 0x%4.4" PRIx64 ", should_stop = 0 (ignore since thread was suspended)", - __FUNCTION__, GetID (), GetProtocolID()); - return false; - } + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP)); - // Based on the current thread plan and process stop info, check if this - // thread caused the process to stop. NOTE: this must take place before - // the plan is moved from the current plan stack to the completed plan - // stack. - if (!ThreadStoppedForAReason()) - { - if (log) - log->Printf ("Thread::%s for tid = 0x%4.4" PRIx64 " 0x%4.4" PRIx64 ", pc = 0x%16.16" PRIx64 ", should_stop = 0 (ignore since no stop reason)", - __FUNCTION__, GetID (), GetProtocolID(), - GetRegisterContext() ? GetRegisterContext()->GetPC() : LLDB_INVALID_ADDRESS); - return false; - } + if (GetResumeState() == eStateSuspended) { + if (log) + log->Printf("Thread::%s for tid = 0x%4.4" PRIx64 " 0x%4.4" PRIx64 + ", should_stop = 0 (ignore since thread was suspended)", + __FUNCTION__, GetID(), GetProtocolID()); + return false; + } + if (GetTemporaryResumeState() == eStateSuspended) { if (log) - { - log->Printf ("Thread::%s(%p) for tid = 0x%4.4" PRIx64 " 0x%4.4" PRIx64 ", pc = 0x%16.16" PRIx64, - __FUNCTION__, static_cast<void*>(this), GetID (), - GetProtocolID (), - GetRegisterContext() - ? GetRegisterContext()->GetPC() - : LLDB_INVALID_ADDRESS); - log->Printf ("^^^^^^^^ Thread::ShouldStop Begin ^^^^^^^^"); - StreamString s; - s.IndentMore(); - DumpThreadPlans(&s); - log->Printf ("Plan stack initial state:\n%s", s.GetData()); - } + log->Printf("Thread::%s for tid = 0x%4.4" PRIx64 " 0x%4.4" PRIx64 + ", should_stop = 0 (ignore since thread was suspended)", + __FUNCTION__, GetID(), GetProtocolID()); + return false; + } - // The top most plan always gets to do the trace log... - current_plan->DoTraceLog (); + // Based on the current thread plan and process stop info, check if this + // thread caused the process to stop. NOTE: this must take place before + // the plan is moved from the current plan stack to the completed plan + // stack. + if (!ThreadStoppedForAReason()) { + if (log) + log->Printf("Thread::%s for tid = 0x%4.4" PRIx64 " 0x%4.4" PRIx64 + ", pc = 0x%16.16" PRIx64 + ", should_stop = 0 (ignore since no stop reason)", + __FUNCTION__, GetID(), GetProtocolID(), + GetRegisterContext() ? GetRegisterContext()->GetPC() + : LLDB_INVALID_ADDRESS); + return false; + } + + if (log) { + log->Printf("Thread::%s(%p) for tid = 0x%4.4" PRIx64 " 0x%4.4" PRIx64 + ", pc = 0x%16.16" PRIx64, + __FUNCTION__, static_cast<void *>(this), GetID(), + GetProtocolID(), + GetRegisterContext() ? GetRegisterContext()->GetPC() + : LLDB_INVALID_ADDRESS); + log->Printf("^^^^^^^^ Thread::ShouldStop Begin ^^^^^^^^"); + StreamString s; + s.IndentMore(); + DumpThreadPlans(&s); + log->Printf("Plan stack initial state:\n%s", s.GetData()); + } + + // The top most plan always gets to do the trace log... + current_plan->DoTraceLog(); + + // First query the stop info's ShouldStopSynchronous. This handles + // "synchronous" stop reasons, for example the breakpoint + // command on internal breakpoints. If a synchronous stop reason says we + // should not stop, then we don't have to + // do any more work on this stop. + StopInfoSP private_stop_info(GetPrivateStopInfo()); + if (private_stop_info && + !private_stop_info->ShouldStopSynchronous(event_ptr)) { + if (log) + log->Printf("StopInfo::ShouldStop async callback says we should not " + "stop, returning ShouldStop of false."); + return false; + } - // First query the stop info's ShouldStopSynchronous. This handles "synchronous" stop reasons, for example the breakpoint - // command on internal breakpoints. If a synchronous stop reason says we should not stop, then we don't have to - // do any more work on this stop. - StopInfoSP private_stop_info (GetPrivateStopInfo()); - if (private_stop_info && !private_stop_info->ShouldStopSynchronous(event_ptr)) - { - if (log) - log->Printf ("StopInfo::ShouldStop async callback says we should not stop, returning ShouldStop of false."); - return false; - } + // If we've already been restarted, don't query the plans since the state they + // would examine is not current. + if (Process::ProcessEventData::GetRestartedFromEvent(event_ptr)) + return false; - // If we've already been restarted, don't query the plans since the state they would examine is not current. - if (Process::ProcessEventData::GetRestartedFromEvent(event_ptr)) - return false; - - // Before the plans see the state of the world, calculate the current inlined depth. - GetStackFrameList()->CalculateCurrentInlinedDepth(); - - // If the base plan doesn't understand why we stopped, then we have to find a plan that does. - // If that plan is still working, then we don't need to do any more work. If the plan that explains - // the stop is done, then we should pop all the plans below it, and pop it, and then let the plans above it decide - // whether they still need to do more work. - - bool done_processing_current_plan = false; - - if (!current_plan->PlanExplainsStop(event_ptr)) - { - if (current_plan->TracerExplainsStop()) - { + // Before the plans see the state of the world, calculate the current inlined + // depth. + GetStackFrameList()->CalculateCurrentInlinedDepth(); + + // If the base plan doesn't understand why we stopped, then we have to find a + // plan that does. + // If that plan is still working, then we don't need to do any more work. If + // the plan that explains + // the stop is done, then we should pop all the plans below it, and pop it, + // and then let the plans above it decide + // whether they still need to do more work. + + bool done_processing_current_plan = false; + + if (!current_plan->PlanExplainsStop(event_ptr)) { + if (current_plan->TracerExplainsStop()) { + done_processing_current_plan = true; + should_stop = false; + } else { + // If the current plan doesn't explain the stop, then find one that + // does and let it handle the situation. + ThreadPlan *plan_ptr = current_plan; + while ((plan_ptr = GetPreviousPlan(plan_ptr)) != nullptr) { + if (plan_ptr->PlanExplainsStop(event_ptr)) { + should_stop = plan_ptr->ShouldStop(event_ptr); + + // plan_ptr explains the stop, next check whether plan_ptr is done, if + // so, then we should take it + // and all the plans below it off the stack. + + if (plan_ptr->MischiefManaged()) { + // We're going to pop the plans up to and including the plan that + // explains the stop. + ThreadPlan *prev_plan_ptr = GetPreviousPlan(plan_ptr); + + do { + if (should_stop) + current_plan->WillStop(); + PopPlan(); + } while ((current_plan = GetCurrentPlan()) != prev_plan_ptr); + // Now, if the responsible plan was not "Okay to discard" then we're + // done, + // otherwise we forward this to the next plan in the stack below. + done_processing_current_plan = + (plan_ptr->IsMasterPlan() && !plan_ptr->OkayToDiscard()); + } else done_processing_current_plan = true; - should_stop = false; - } - else - { - // If the current plan doesn't explain the stop, then find one that - // does and let it handle the situation. - ThreadPlan *plan_ptr = current_plan; - while ((plan_ptr = GetPreviousPlan(plan_ptr)) != nullptr) - { - if (plan_ptr->PlanExplainsStop(event_ptr)) - { - should_stop = plan_ptr->ShouldStop (event_ptr); - - // plan_ptr explains the stop, next check whether plan_ptr is done, if so, then we should take it - // and all the plans below it off the stack. - - if (plan_ptr->MischiefManaged()) - { - // We're going to pop the plans up to and including the plan that explains the stop. - ThreadPlan *prev_plan_ptr = GetPreviousPlan (plan_ptr); - - do - { - if (should_stop) - current_plan->WillStop(); - PopPlan(); - } - while ((current_plan = GetCurrentPlan()) != prev_plan_ptr); - // Now, if the responsible plan was not "Okay to discard" then we're done, - // otherwise we forward this to the next plan in the stack below. - done_processing_current_plan = (plan_ptr->IsMasterPlan() && !plan_ptr->OkayToDiscard()); - } - else - done_processing_current_plan = true; - - break; - } - } + + break; } + } } + } - if (!done_processing_current_plan) - { - bool over_ride_stop = current_plan->ShouldAutoContinue(event_ptr); + if (!done_processing_current_plan) { + bool over_ride_stop = current_plan->ShouldAutoContinue(event_ptr); - if (log) - log->Printf("Plan %s explains stop, auto-continue %i.", - current_plan->GetName(), over_ride_stop); - - // We're starting from the base plan, so just let it decide; + if (log) + log->Printf("Plan %s explains stop, auto-continue %i.", + current_plan->GetName(), over_ride_stop); + + // We're starting from the base plan, so just let it decide; + if (PlanIsBasePlan(current_plan)) { + should_stop = current_plan->ShouldStop(event_ptr); + if (log) + log->Printf("Base plan says should stop: %i.", should_stop); + } else { + // Otherwise, don't let the base plan override what the other plans say to + // do, since + // presumably if there were other plans they would know what to do... + while (1) { if (PlanIsBasePlan(current_plan)) - { - should_stop = current_plan->ShouldStop (event_ptr); - if (log) - log->Printf("Base plan says should stop: %i.", should_stop); - } - else - { - // Otherwise, don't let the base plan override what the other plans say to do, since - // presumably if there were other plans they would know what to do... - while (1) - { - if (PlanIsBasePlan(current_plan)) - break; - - should_stop = current_plan->ShouldStop(event_ptr); - if (log) - log->Printf("Plan %s should stop: %d.", - current_plan->GetName(), should_stop); - if (current_plan->MischiefManaged()) - { - if (should_stop) - current_plan->WillStop(); - - // If a Master Plan wants to stop, and wants to stick on the stack, we let it. - // Otherwise, see if the plan's parent wants to stop. - - if (should_stop && current_plan->IsMasterPlan() && !current_plan->OkayToDiscard()) - { - PopPlan(); - break; - } - else - { - PopPlan(); - - current_plan = GetCurrentPlan(); - if (current_plan == nullptr) - { - break; - } - } - } - else - { - break; - } - } - } - - if (over_ride_stop) - should_stop = false; - } + break; - // One other potential problem is that we set up a master plan, then stop in before it is complete - for instance - // by hitting a breakpoint during a step-over - then do some step/finish/etc operations that wind up - // past the end point condition of the initial plan. We don't want to strand the original plan on the stack, - // This code clears stale plans off the stack. + should_stop = current_plan->ShouldStop(event_ptr); + if (log) + log->Printf("Plan %s should stop: %d.", current_plan->GetName(), + should_stop); + if (current_plan->MischiefManaged()) { + if (should_stop) + current_plan->WillStop(); + + // If a Master Plan wants to stop, and wants to stick on the stack, we + // let it. + // Otherwise, see if the plan's parent wants to stop. + + if (should_stop && current_plan->IsMasterPlan() && + !current_plan->OkayToDiscard()) { + PopPlan(); + break; + } else { + PopPlan(); - if (should_stop) - { - ThreadPlan *plan_ptr = GetCurrentPlan(); - while (!PlanIsBasePlan(plan_ptr)) - { - bool stale = plan_ptr->IsPlanStale (); - ThreadPlan *examined_plan = plan_ptr; - plan_ptr = GetPreviousPlan (examined_plan); - - if (stale) - { - if (log) - log->Printf("Plan %s being discarded in cleanup, it says it is already done.", - examined_plan->GetName()); - DiscardThreadPlansUpToPlan(examined_plan); + current_plan = GetCurrentPlan(); + if (current_plan == nullptr) { + break; } + } + } else { + break; } + } } - if (log) - { - StreamString s; - s.IndentMore(); - DumpThreadPlans(&s); - log->Printf ("Plan stack final state:\n%s", s.GetData()); - log->Printf ("vvvvvvvv Thread::ShouldStop End (returning %i) vvvvvvvv", should_stop); - } - return should_stop; -} + if (over_ride_stop) + should_stop = false; + } -Vote -Thread::ShouldReportStop (Event* event_ptr) -{ - StateType thread_state = GetResumeState (); - StateType temp_thread_state = GetTemporaryResumeState(); - - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); + // One other potential problem is that we set up a master plan, then stop in + // before it is complete - for instance + // by hitting a breakpoint during a step-over - then do some step/finish/etc + // operations that wind up + // past the end point condition of the initial plan. We don't want to strand + // the original plan on the stack, + // This code clears stale plans off the stack. - if (thread_state == eStateSuspended || thread_state == eStateInvalid) - { - if (log) - log->Printf ("Thread::ShouldReportStop() tid = 0x%4.4" PRIx64 ": returning vote %i (state was suspended or invalid)", GetID(), eVoteNoOpinion); - return eVoteNoOpinion; - } + if (should_stop) { + ThreadPlan *plan_ptr = GetCurrentPlan(); + while (!PlanIsBasePlan(plan_ptr)) { + bool stale = plan_ptr->IsPlanStale(); + ThreadPlan *examined_plan = plan_ptr; + plan_ptr = GetPreviousPlan(examined_plan); - if (temp_thread_state == eStateSuspended || temp_thread_state == eStateInvalid) - { + if (stale) { if (log) - log->Printf ("Thread::ShouldReportStop() tid = 0x%4.4" PRIx64 ": returning vote %i (temporary state was suspended or invalid)", GetID(), eVoteNoOpinion); - return eVoteNoOpinion; + log->Printf( + "Plan %s being discarded in cleanup, it says it is already done.", + examined_plan->GetName()); + DiscardThreadPlansUpToPlan(examined_plan); + } } + } - if (!ThreadStoppedForAReason()) - { - if (log) - log->Printf ("Thread::ShouldReportStop() tid = 0x%4.4" PRIx64 ": returning vote %i (thread didn't stop for a reason.)", GetID(), eVoteNoOpinion); - return eVoteNoOpinion; - } + if (log) { + StreamString s; + s.IndentMore(); + DumpThreadPlans(&s); + log->Printf("Plan stack final state:\n%s", s.GetData()); + log->Printf("vvvvvvvv Thread::ShouldStop End (returning %i) vvvvvvvv", + should_stop); + } + return should_stop; +} - if (m_completed_plan_stack.size() > 0) - { - // Don't use GetCompletedPlan here, since that suppresses private plans. - if (log) - log->Printf ("Thread::ShouldReportStop() tid = 0x%4.4" PRIx64 ": returning vote for complete stack's back plan", GetID()); - return m_completed_plan_stack.back()->ShouldReportStop (event_ptr); - } - else - { - Vote thread_vote = eVoteNoOpinion; - ThreadPlan *plan_ptr = GetCurrentPlan(); - while (1) - { - if (plan_ptr->PlanExplainsStop(event_ptr)) - { - thread_vote = plan_ptr->ShouldReportStop(event_ptr); - break; - } - if (PlanIsBasePlan(plan_ptr)) - break; - else - plan_ptr = GetPreviousPlan(plan_ptr); - } - if (log) - log->Printf ("Thread::ShouldReportStop() tid = 0x%4.4" PRIx64 ": returning vote %i for current plan", GetID(), thread_vote); +Vote Thread::ShouldReportStop(Event *event_ptr) { + StateType thread_state = GetResumeState(); + StateType temp_thread_state = GetTemporaryResumeState(); - return thread_vote; + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP)); + + if (thread_state == eStateSuspended || thread_state == eStateInvalid) { + if (log) + log->Printf("Thread::ShouldReportStop() tid = 0x%4.4" PRIx64 + ": returning vote %i (state was suspended or invalid)", + GetID(), eVoteNoOpinion); + return eVoteNoOpinion; + } + + if (temp_thread_state == eStateSuspended || + temp_thread_state == eStateInvalid) { + if (log) + log->Printf( + "Thread::ShouldReportStop() tid = 0x%4.4" PRIx64 + ": returning vote %i (temporary state was suspended or invalid)", + GetID(), eVoteNoOpinion); + return eVoteNoOpinion; + } + + if (!ThreadStoppedForAReason()) { + if (log) + log->Printf("Thread::ShouldReportStop() tid = 0x%4.4" PRIx64 + ": returning vote %i (thread didn't stop for a reason.)", + GetID(), eVoteNoOpinion); + return eVoteNoOpinion; + } + + if (m_completed_plan_stack.size() > 0) { + // Don't use GetCompletedPlan here, since that suppresses private plans. + if (log) + log->Printf("Thread::ShouldReportStop() tid = 0x%4.4" PRIx64 + ": returning vote for complete stack's back plan", + GetID()); + return m_completed_plan_stack.back()->ShouldReportStop(event_ptr); + } else { + Vote thread_vote = eVoteNoOpinion; + ThreadPlan *plan_ptr = GetCurrentPlan(); + while (1) { + if (plan_ptr->PlanExplainsStop(event_ptr)) { + thread_vote = plan_ptr->ShouldReportStop(event_ptr); + break; + } + if (PlanIsBasePlan(plan_ptr)) + break; + else + plan_ptr = GetPreviousPlan(plan_ptr); } -} + if (log) + log->Printf("Thread::ShouldReportStop() tid = 0x%4.4" PRIx64 + ": returning vote %i for current plan", + GetID(), thread_vote); -Vote -Thread::ShouldReportRun (Event* event_ptr) -{ - StateType thread_state = GetResumeState (); + return thread_vote; + } +} - if (thread_state == eStateSuspended - || thread_state == eStateInvalid) - { - return eVoteNoOpinion; - } +Vote Thread::ShouldReportRun(Event *event_ptr) { + StateType thread_state = GetResumeState(); - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); - if (m_completed_plan_stack.size() > 0) - { - // Don't use GetCompletedPlan here, since that suppresses private plans. - if (log) - log->Printf ("Current Plan for thread %d(%p) (0x%4.4" PRIx64 ", %s): %s being asked whether we should report run.", - GetIndexID(), static_cast<void*>(this), GetID(), - StateAsCString(GetTemporaryResumeState()), - m_completed_plan_stack.back()->GetName()); + if (thread_state == eStateSuspended || thread_state == eStateInvalid) { + return eVoteNoOpinion; + } - return m_completed_plan_stack.back()->ShouldReportRun (event_ptr); - } - else - { - if (log) - log->Printf ("Current Plan for thread %d(%p) (0x%4.4" PRIx64 ", %s): %s being asked whether we should report run.", - GetIndexID(), static_cast<void*>(this), GetID(), - StateAsCString(GetTemporaryResumeState()), - GetCurrentPlan()->GetName()); + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP)); + if (m_completed_plan_stack.size() > 0) { + // Don't use GetCompletedPlan here, since that suppresses private plans. + if (log) + log->Printf("Current Plan for thread %d(%p) (0x%4.4" PRIx64 + ", %s): %s being asked whether we should report run.", + GetIndexID(), static_cast<void *>(this), GetID(), + StateAsCString(GetTemporaryResumeState()), + m_completed_plan_stack.back()->GetName()); + + return m_completed_plan_stack.back()->ShouldReportRun(event_ptr); + } else { + if (log) + log->Printf("Current Plan for thread %d(%p) (0x%4.4" PRIx64 + ", %s): %s being asked whether we should report run.", + GetIndexID(), static_cast<void *>(this), GetID(), + StateAsCString(GetTemporaryResumeState()), + GetCurrentPlan()->GetName()); - return GetCurrentPlan()->ShouldReportRun (event_ptr); - } + return GetCurrentPlan()->ShouldReportRun(event_ptr); + } } -bool -Thread::MatchesSpec (const ThreadSpec *spec) -{ - return (spec == nullptr) ? true : spec->ThreadPassesBasicTests(*this); +bool Thread::MatchesSpec(const ThreadSpec *spec) { + return (spec == nullptr) ? true : spec->ThreadPassesBasicTests(*this); } -void -Thread::PushPlan (ThreadPlanSP &thread_plan_sp) -{ - if (thread_plan_sp) - { - // If the thread plan doesn't already have a tracer, give it its parent's tracer: - if (!thread_plan_sp->GetThreadPlanTracer()) - thread_plan_sp->SetThreadPlanTracer(m_plan_stack.back()->GetThreadPlanTracer()); - m_plan_stack.push_back (thread_plan_sp); +void Thread::PushPlan(ThreadPlanSP &thread_plan_sp) { + if (thread_plan_sp) { + // If the thread plan doesn't already have a tracer, give it its parent's + // tracer: + if (!thread_plan_sp->GetThreadPlanTracer()) + thread_plan_sp->SetThreadPlanTracer( + m_plan_stack.back()->GetThreadPlanTracer()); + m_plan_stack.push_back(thread_plan_sp); - thread_plan_sp->DidPush(); + thread_plan_sp->DidPush(); - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); - if (log) - { - StreamString s; - thread_plan_sp->GetDescription (&s, lldb::eDescriptionLevelFull); - log->Printf("Thread::PushPlan(0x%p): \"%s\", tid = 0x%4.4" PRIx64 ".", - static_cast<void*>(this), s.GetData(), - thread_plan_sp->GetThread().GetID()); - } + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP)); + if (log) { + StreamString s; + thread_plan_sp->GetDescription(&s, lldb::eDescriptionLevelFull); + log->Printf("Thread::PushPlan(0x%p): \"%s\", tid = 0x%4.4" PRIx64 ".", + static_cast<void *>(this), s.GetData(), + thread_plan_sp->GetThread().GetID()); } + } } -void -Thread::PopPlan () -{ - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); +void Thread::PopPlan() { + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP)); - if (m_plan_stack.size() <= 1) - return; - else - { - ThreadPlanSP &plan = m_plan_stack.back(); - if (log) - { - log->Printf("Popping plan: \"%s\", tid = 0x%4.4" PRIx64 ".", plan->GetName(), plan->GetThread().GetID()); - } - m_completed_plan_stack.push_back (plan); - plan->WillPop(); - m_plan_stack.pop_back(); + if (m_plan_stack.size() <= 1) + return; + else { + ThreadPlanSP &plan = m_plan_stack.back(); + if (log) { + log->Printf("Popping plan: \"%s\", tid = 0x%4.4" PRIx64 ".", + plan->GetName(), plan->GetThread().GetID()); } + m_completed_plan_stack.push_back(plan); + plan->WillPop(); + m_plan_stack.pop_back(); + } } -void -Thread::DiscardPlan () -{ - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); - if (m_plan_stack.size() > 1) - { - ThreadPlanSP &plan = m_plan_stack.back(); - if (log) - log->Printf("Discarding plan: \"%s\", tid = 0x%4.4" PRIx64 ".", plan->GetName(), plan->GetThread().GetID()); +void Thread::DiscardPlan() { + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP)); + if (m_plan_stack.size() > 1) { + ThreadPlanSP &plan = m_plan_stack.back(); + if (log) + log->Printf("Discarding plan: \"%s\", tid = 0x%4.4" PRIx64 ".", + plan->GetName(), plan->GetThread().GetID()); - m_discarded_plan_stack.push_back (plan); - plan->WillPop(); - m_plan_stack.pop_back(); - } + m_discarded_plan_stack.push_back(plan); + plan->WillPop(); + m_plan_stack.pop_back(); + } } -ThreadPlan * -Thread::GetCurrentPlan () -{ - // There will always be at least the base plan. If somebody is mucking with a - // thread with an empty plan stack, we should assert right away. - return m_plan_stack.empty() ? nullptr : m_plan_stack.back().get(); +ThreadPlan *Thread::GetCurrentPlan() { + // There will always be at least the base plan. If somebody is mucking with a + // thread with an empty plan stack, we should assert right away. + return m_plan_stack.empty() ? nullptr : m_plan_stack.back().get(); } -ThreadPlanSP -Thread::GetCompletedPlan () -{ - ThreadPlanSP empty_plan_sp; - if (!m_completed_plan_stack.empty()) - { - for (int i = m_completed_plan_stack.size() - 1; i >= 0; i--) - { - ThreadPlanSP completed_plan_sp; - completed_plan_sp = m_completed_plan_stack[i]; - if (!completed_plan_sp->GetPrivate ()) - return completed_plan_sp; - } +ThreadPlanSP Thread::GetCompletedPlan() { + ThreadPlanSP empty_plan_sp; + if (!m_completed_plan_stack.empty()) { + for (int i = m_completed_plan_stack.size() - 1; i >= 0; i--) { + ThreadPlanSP completed_plan_sp; + completed_plan_sp = m_completed_plan_stack[i]; + if (!completed_plan_sp->GetPrivate()) + return completed_plan_sp; } - return empty_plan_sp; + } + return empty_plan_sp; } -ValueObjectSP -Thread::GetReturnValueObject () -{ - if (!m_completed_plan_stack.empty()) - { - for (int i = m_completed_plan_stack.size() - 1; i >= 0; i--) - { - ValueObjectSP return_valobj_sp; - return_valobj_sp = m_completed_plan_stack[i]->GetReturnValueObject(); - if (return_valobj_sp) - return return_valobj_sp; - } +ValueObjectSP Thread::GetReturnValueObject() { + if (!m_completed_plan_stack.empty()) { + for (int i = m_completed_plan_stack.size() - 1; i >= 0; i--) { + ValueObjectSP return_valobj_sp; + return_valobj_sp = m_completed_plan_stack[i]->GetReturnValueObject(); + if (return_valobj_sp) + return return_valobj_sp; } - return ValueObjectSP(); + } + return ValueObjectSP(); } -ExpressionVariableSP -Thread::GetExpressionVariable () -{ - if (!m_completed_plan_stack.empty()) - { - for (int i = m_completed_plan_stack.size() - 1; i >= 0; i--) - { - ExpressionVariableSP expression_variable_sp; - expression_variable_sp = m_completed_plan_stack[i]->GetExpressionVariable(); - if (expression_variable_sp) - return expression_variable_sp; - } +ExpressionVariableSP Thread::GetExpressionVariable() { + if (!m_completed_plan_stack.empty()) { + for (int i = m_completed_plan_stack.size() - 1; i >= 0; i--) { + ExpressionVariableSP expression_variable_sp; + expression_variable_sp = + m_completed_plan_stack[i]->GetExpressionVariable(); + if (expression_variable_sp) + return expression_variable_sp; } - return ExpressionVariableSP(); + } + return ExpressionVariableSP(); } -bool -Thread::IsThreadPlanDone (ThreadPlan *plan) -{ - if (!m_completed_plan_stack.empty()) - { - for (int i = m_completed_plan_stack.size() - 1; i >= 0; i--) - { - if (m_completed_plan_stack[i].get() == plan) - return true; - } +bool Thread::IsThreadPlanDone(ThreadPlan *plan) { + if (!m_completed_plan_stack.empty()) { + for (int i = m_completed_plan_stack.size() - 1; i >= 0; i--) { + if (m_completed_plan_stack[i].get() == plan) + return true; } - return false; + } + return false; } -bool -Thread::WasThreadPlanDiscarded (ThreadPlan *plan) -{ - if (!m_discarded_plan_stack.empty()) - { - for (int i = m_discarded_plan_stack.size() - 1; i >= 0; i--) - { - if (m_discarded_plan_stack[i].get() == plan) - return true; - } +bool Thread::WasThreadPlanDiscarded(ThreadPlan *plan) { + if (!m_discarded_plan_stack.empty()) { + for (int i = m_discarded_plan_stack.size() - 1; i >= 0; i--) { + if (m_discarded_plan_stack[i].get() == plan) + return true; } - return false; + } + return false; } -ThreadPlan * -Thread::GetPreviousPlan (ThreadPlan *current_plan) -{ - if (current_plan == nullptr) - return nullptr; +ThreadPlan *Thread::GetPreviousPlan(ThreadPlan *current_plan) { + if (current_plan == nullptr) + return nullptr; - int stack_size = m_completed_plan_stack.size(); - for (int i = stack_size - 1; i > 0; i--) - { - if (current_plan == m_completed_plan_stack[i].get()) - return m_completed_plan_stack[i-1].get(); - } + int stack_size = m_completed_plan_stack.size(); + for (int i = stack_size - 1; i > 0; i--) { + if (current_plan == m_completed_plan_stack[i].get()) + return m_completed_plan_stack[i - 1].get(); + } - if (stack_size > 0 && m_completed_plan_stack[0].get() == current_plan) - { - return GetCurrentPlan(); - } + if (stack_size > 0 && m_completed_plan_stack[0].get() == current_plan) { + return GetCurrentPlan(); + } - stack_size = m_plan_stack.size(); - for (int i = stack_size - 1; i > 0; i--) - { - if (current_plan == m_plan_stack[i].get()) - return m_plan_stack[i-1].get(); - } - return nullptr; + stack_size = m_plan_stack.size(); + for (int i = stack_size - 1; i > 0; i--) { + if (current_plan == m_plan_stack[i].get()) + return m_plan_stack[i - 1].get(); + } + return nullptr; } -void -Thread::QueueThreadPlan (ThreadPlanSP &thread_plan_sp, bool abort_other_plans) -{ - if (abort_other_plans) - DiscardThreadPlans(true); +void Thread::QueueThreadPlan(ThreadPlanSP &thread_plan_sp, + bool abort_other_plans) { + if (abort_other_plans) + DiscardThreadPlans(true); - PushPlan (thread_plan_sp); + PushPlan(thread_plan_sp); } -void -Thread::EnableTracer (bool value, bool single_stepping) -{ - int stack_size = m_plan_stack.size(); - for (int i = 0; i < stack_size; i++) - { - if (m_plan_stack[i]->GetThreadPlanTracer()) - { - m_plan_stack[i]->GetThreadPlanTracer()->EnableTracing(value); - m_plan_stack[i]->GetThreadPlanTracer()->EnableSingleStep(single_stepping); - } +void Thread::EnableTracer(bool value, bool single_stepping) { + int stack_size = m_plan_stack.size(); + for (int i = 0; i < stack_size; i++) { + if (m_plan_stack[i]->GetThreadPlanTracer()) { + m_plan_stack[i]->GetThreadPlanTracer()->EnableTracing(value); + m_plan_stack[i]->GetThreadPlanTracer()->EnableSingleStep(single_stepping); } + } } -void -Thread::SetTracer (lldb::ThreadPlanTracerSP &tracer_sp) -{ - int stack_size = m_plan_stack.size(); - for (int i = 0; i < stack_size; i++) - m_plan_stack[i]->SetThreadPlanTracer(tracer_sp); +void Thread::SetTracer(lldb::ThreadPlanTracerSP &tracer_sp) { + int stack_size = m_plan_stack.size(); + for (int i = 0; i < stack_size; i++) + m_plan_stack[i]->SetThreadPlanTracer(tracer_sp); } -bool -Thread::DiscardUserThreadPlansUpToIndex (uint32_t thread_index) -{ - // Count the user thread plans from the back end to get the number of the one we want - // to discard: +bool Thread::DiscardUserThreadPlansUpToIndex(uint32_t thread_index) { + // Count the user thread plans from the back end to get the number of the one + // we want + // to discard: - uint32_t idx = 0; - ThreadPlan *up_to_plan_ptr = nullptr; + uint32_t idx = 0; + ThreadPlan *up_to_plan_ptr = nullptr; - for (ThreadPlanSP plan_sp : m_plan_stack) - { - if (plan_sp->GetPrivate()) - continue; - if (idx == thread_index) - { - up_to_plan_ptr = plan_sp.get(); - break; - } - else - idx++; - } + for (ThreadPlanSP plan_sp : m_plan_stack) { + if (plan_sp->GetPrivate()) + continue; + if (idx == thread_index) { + up_to_plan_ptr = plan_sp.get(); + break; + } else + idx++; + } - if (up_to_plan_ptr == nullptr) - return false; + if (up_to_plan_ptr == nullptr) + return false; - DiscardThreadPlansUpToPlan(up_to_plan_ptr); - return true; + DiscardThreadPlansUpToPlan(up_to_plan_ptr); + return true; } -void -Thread::DiscardThreadPlansUpToPlan (lldb::ThreadPlanSP &up_to_plan_sp) -{ - DiscardThreadPlansUpToPlan (up_to_plan_sp.get()); +void Thread::DiscardThreadPlansUpToPlan(lldb::ThreadPlanSP &up_to_plan_sp) { + DiscardThreadPlansUpToPlan(up_to_plan_sp.get()); } -void -Thread::DiscardThreadPlansUpToPlan (ThreadPlan *up_to_plan_ptr) -{ - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); - if (log) - log->Printf("Discarding thread plans for thread tid = 0x%4.4" PRIx64 ", up to %p", - GetID(), static_cast<void*>(up_to_plan_ptr)); +void Thread::DiscardThreadPlansUpToPlan(ThreadPlan *up_to_plan_ptr) { + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP)); + if (log) + log->Printf("Discarding thread plans for thread tid = 0x%4.4" PRIx64 + ", up to %p", + GetID(), static_cast<void *>(up_to_plan_ptr)); - int stack_size = m_plan_stack.size(); + int stack_size = m_plan_stack.size(); - // If the input plan is nullptr, discard all plans. Otherwise make sure this plan is in the - // stack, and if so discard up to and including it. + // If the input plan is nullptr, discard all plans. Otherwise make sure this + // plan is in the + // stack, and if so discard up to and including it. - if (up_to_plan_ptr == nullptr) - { - for (int i = stack_size - 1; i > 0; i--) - DiscardPlan(); - } - else - { - bool found_it = false; - for (int i = stack_size - 1; i > 0; i--) - { - if (m_plan_stack[i].get() == up_to_plan_ptr) - found_it = true; - } - if (found_it) - { - bool last_one = false; - for (int i = stack_size - 1; i > 0 && !last_one ; i--) - { - if (GetCurrentPlan() == up_to_plan_ptr) - last_one = true; - DiscardPlan(); - } - } - } + if (up_to_plan_ptr == nullptr) { + for (int i = stack_size - 1; i > 0; i--) + DiscardPlan(); + } else { + bool found_it = false; + for (int i = stack_size - 1; i > 0; i--) { + if (m_plan_stack[i].get() == up_to_plan_ptr) + found_it = true; + } + if (found_it) { + bool last_one = false; + for (int i = stack_size - 1; i > 0 && !last_one; i--) { + if (GetCurrentPlan() == up_to_plan_ptr) + last_one = true; + DiscardPlan(); + } + } + } +} + +void Thread::DiscardThreadPlans(bool force) { + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP)); + if (log) { + log->Printf("Discarding thread plans for thread (tid = 0x%4.4" PRIx64 + ", force %d)", + GetID(), force); + } + + if (force) { + int stack_size = m_plan_stack.size(); + for (int i = stack_size - 1; i > 0; i--) { + DiscardPlan(); + } + return; + } + + while (1) { + int master_plan_idx; + bool discard = true; + + // Find the first master plan, see if it wants discarding, and if yes + // discard up to it. + for (master_plan_idx = m_plan_stack.size() - 1; master_plan_idx >= 0; + master_plan_idx--) { + if (m_plan_stack[master_plan_idx]->IsMasterPlan()) { + discard = m_plan_stack[master_plan_idx]->OkayToDiscard(); + break; + } + } + + if (discard) { + // First pop all the dependent plans: + for (int i = m_plan_stack.size() - 1; i > master_plan_idx; i--) { + // FIXME: Do we need a finalize here, or is the rule that + // "PrepareForStop" + // for the plan leaves it in a state that it is safe to pop the plan + // with no more notice? + DiscardPlan(); + } + + // Now discard the master plan itself. + // The bottom-most plan never gets discarded. "OkayToDiscard" for it + // means + // discard it's dependent plans, but not it... + if (master_plan_idx > 0) { + DiscardPlan(); + } + } else { + // If the master plan doesn't want to get discarded, then we're done. + break; + } + } +} + +bool Thread::PlanIsBasePlan(ThreadPlan *plan_ptr) { + if (plan_ptr->IsBasePlan()) + return true; + else if (m_plan_stack.size() == 0) + return false; + else + return m_plan_stack[0].get() == plan_ptr; } -void -Thread::DiscardThreadPlans(bool force) -{ - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); - if (log) - { - log->Printf("Discarding thread plans for thread (tid = 0x%4.4" PRIx64 ", force %d)", GetID(), force); - } - - if (force) - { - int stack_size = m_plan_stack.size(); - for (int i = stack_size - 1; i > 0; i--) - { - DiscardPlan(); - } - return; - } +Error Thread::UnwindInnermostExpression() { + Error error; + int stack_size = m_plan_stack.size(); - while (1) - { - int master_plan_idx; - bool discard = true; - - // Find the first master plan, see if it wants discarding, and if yes discard up to it. - for (master_plan_idx = m_plan_stack.size() - 1; master_plan_idx >= 0; master_plan_idx--) - { - if (m_plan_stack[master_plan_idx]->IsMasterPlan()) - { - discard = m_plan_stack[master_plan_idx]->OkayToDiscard(); - break; - } - } + // If the input plan is nullptr, discard all plans. Otherwise make sure this + // plan is in the + // stack, and if so discard up to and including it. - if (discard) - { - // First pop all the dependent plans: - for (int i = m_plan_stack.size() - 1; i > master_plan_idx; i--) - { - // FIXME: Do we need a finalize here, or is the rule that "PrepareForStop" - // for the plan leaves it in a state that it is safe to pop the plan - // with no more notice? - DiscardPlan(); - } - - // Now discard the master plan itself. - // The bottom-most plan never gets discarded. "OkayToDiscard" for it means - // discard it's dependent plans, but not it... - if (master_plan_idx > 0) - { - DiscardPlan(); - } - } - else - { - // If the master plan doesn't want to get discarded, then we're done. - break; - } + for (int i = stack_size - 1; i > 0; i--) { + if (m_plan_stack[i]->GetKind() == ThreadPlan::eKindCallFunction) { + DiscardThreadPlansUpToPlan(m_plan_stack[i].get()); + return error; } + } + error.SetErrorString("No expressions currently active on this thread"); + return error; } -bool -Thread::PlanIsBasePlan (ThreadPlan *plan_ptr) -{ - if (plan_ptr->IsBasePlan()) - return true; - else if (m_plan_stack.size() == 0) - return false; - else - return m_plan_stack[0].get() == plan_ptr; -} - -Error -Thread::UnwindInnermostExpression() -{ - Error error; - int stack_size = m_plan_stack.size(); - - // If the input plan is nullptr, discard all plans. Otherwise make sure this plan is in the - // stack, and if so discard up to and including it. - - for (int i = stack_size - 1; i > 0; i--) - { - if (m_plan_stack[i]->GetKind() == ThreadPlan::eKindCallFunction) - { - DiscardThreadPlansUpToPlan(m_plan_stack[i].get()); - return error; - } - } - error.SetErrorString("No expressions currently active on this thread"); - return error; +ThreadPlanSP Thread::QueueFundamentalPlan(bool abort_other_plans) { + ThreadPlanSP thread_plan_sp(new ThreadPlanBase(*this)); + QueueThreadPlan(thread_plan_sp, abort_other_plans); + return thread_plan_sp; } -ThreadPlanSP -Thread::QueueFundamentalPlan (bool abort_other_plans) -{ - ThreadPlanSP thread_plan_sp (new ThreadPlanBase(*this)); - QueueThreadPlan (thread_plan_sp, abort_other_plans); - return thread_plan_sp; +ThreadPlanSP Thread::QueueThreadPlanForStepSingleInstruction( + bool step_over, bool abort_other_plans, bool stop_other_threads) { + ThreadPlanSP thread_plan_sp(new ThreadPlanStepInstruction( + *this, step_over, stop_other_threads, eVoteNoOpinion, eVoteNoOpinion)); + QueueThreadPlan(thread_plan_sp, abort_other_plans); + return thread_plan_sp; } -ThreadPlanSP -Thread::QueueThreadPlanForStepSingleInstruction(bool step_over, - bool abort_other_plans, - bool stop_other_threads) -{ - ThreadPlanSP thread_plan_sp (new ThreadPlanStepInstruction (*this, step_over, stop_other_threads, eVoteNoOpinion, eVoteNoOpinion)); - QueueThreadPlan (thread_plan_sp, abort_other_plans); - return thread_plan_sp; -} +ThreadPlanSP Thread::QueueThreadPlanForStepOverRange( + bool abort_other_plans, const AddressRange &range, + const SymbolContext &addr_context, lldb::RunMode stop_other_threads, + LazyBool step_out_avoids_code_withoug_debug_info) { + ThreadPlanSP thread_plan_sp; + thread_plan_sp.reset(new ThreadPlanStepOverRange( + *this, range, addr_context, stop_other_threads, + step_out_avoids_code_withoug_debug_info)); -ThreadPlanSP -Thread::QueueThreadPlanForStepOverRange(bool abort_other_plans, - const AddressRange &range, - const SymbolContext &addr_context, - lldb::RunMode stop_other_threads, - LazyBool step_out_avoids_code_withoug_debug_info) -{ - ThreadPlanSP thread_plan_sp; - thread_plan_sp.reset (new ThreadPlanStepOverRange (*this, range, addr_context, stop_other_threads, step_out_avoids_code_withoug_debug_info)); - - QueueThreadPlan (thread_plan_sp, abort_other_plans); - return thread_plan_sp; + QueueThreadPlan(thread_plan_sp, abort_other_plans); + return thread_plan_sp; } // Call the QueueThreadPlanForStepOverRange method which takes an address range. -ThreadPlanSP -Thread::QueueThreadPlanForStepOverRange(bool abort_other_plans, - const LineEntry &line_entry, - const SymbolContext &addr_context, - lldb::RunMode stop_other_threads, - LazyBool step_out_avoids_code_withoug_debug_info) -{ - return QueueThreadPlanForStepOverRange (abort_other_plans, - line_entry.GetSameLineContiguousAddressRange(), - addr_context, - stop_other_threads, - step_out_avoids_code_withoug_debug_info); -} - -ThreadPlanSP -Thread::QueueThreadPlanForStepInRange(bool abort_other_plans, - const AddressRange &range, - const SymbolContext &addr_context, - const char *step_in_target, - lldb::RunMode stop_other_threads, - LazyBool step_in_avoids_code_without_debug_info, - LazyBool step_out_avoids_code_without_debug_info) -{ - ThreadPlanSP thread_plan_sp (new ThreadPlanStepInRange (*this, - range, - addr_context, - stop_other_threads, - step_in_avoids_code_without_debug_info, - step_out_avoids_code_without_debug_info)); - ThreadPlanStepInRange *plan = static_cast<ThreadPlanStepInRange *>(thread_plan_sp.get()); - - if (step_in_target) - plan->SetStepInTarget(step_in_target); - - QueueThreadPlan (thread_plan_sp, abort_other_plans); - return thread_plan_sp; +ThreadPlanSP Thread::QueueThreadPlanForStepOverRange( + bool abort_other_plans, const LineEntry &line_entry, + const SymbolContext &addr_context, lldb::RunMode stop_other_threads, + LazyBool step_out_avoids_code_withoug_debug_info) { + return QueueThreadPlanForStepOverRange( + abort_other_plans, line_entry.GetSameLineContiguousAddressRange(), + addr_context, stop_other_threads, + step_out_avoids_code_withoug_debug_info); +} + +ThreadPlanSP Thread::QueueThreadPlanForStepInRange( + bool abort_other_plans, const AddressRange &range, + const SymbolContext &addr_context, const char *step_in_target, + lldb::RunMode stop_other_threads, + LazyBool step_in_avoids_code_without_debug_info, + LazyBool step_out_avoids_code_without_debug_info) { + ThreadPlanSP thread_plan_sp( + new ThreadPlanStepInRange(*this, range, addr_context, stop_other_threads, + step_in_avoids_code_without_debug_info, + step_out_avoids_code_without_debug_info)); + ThreadPlanStepInRange *plan = + static_cast<ThreadPlanStepInRange *>(thread_plan_sp.get()); + + if (step_in_target) + plan->SetStepInTarget(step_in_target); + + QueueThreadPlan(thread_plan_sp, abort_other_plans); + return thread_plan_sp; } // Call the QueueThreadPlanForStepInRange method which takes an address range. -ThreadPlanSP -Thread::QueueThreadPlanForStepInRange(bool abort_other_plans, - const LineEntry &line_entry, - const SymbolContext &addr_context, - const char *step_in_target, - lldb::RunMode stop_other_threads, - LazyBool step_in_avoids_code_without_debug_info, - LazyBool step_out_avoids_code_without_debug_info) -{ - return QueueThreadPlanForStepInRange (abort_other_plans, - line_entry.GetSameLineContiguousAddressRange(), - addr_context, - step_in_target, - stop_other_threads, - step_in_avoids_code_without_debug_info, - step_out_avoids_code_without_debug_info); -} - - -ThreadPlanSP -Thread::QueueThreadPlanForStepOut(bool abort_other_plans, - SymbolContext *addr_context, - bool first_insn, - bool stop_other_threads, - Vote stop_vote, - Vote run_vote, - uint32_t frame_idx, - LazyBool step_out_avoids_code_without_debug_info) -{ - ThreadPlanSP thread_plan_sp (new ThreadPlanStepOut (*this, - addr_context, - first_insn, - stop_other_threads, - stop_vote, - run_vote, - frame_idx, - step_out_avoids_code_without_debug_info)); - - if (thread_plan_sp->ValidatePlan(nullptr)) - { - QueueThreadPlan (thread_plan_sp, abort_other_plans); - return thread_plan_sp; - } - else - { - return ThreadPlanSP(); - } -} - -ThreadPlanSP -Thread::QueueThreadPlanForStepOutNoShouldStop(bool abort_other_plans, - SymbolContext *addr_context, - bool first_insn, - bool stop_other_threads, - Vote stop_vote, - Vote run_vote, - uint32_t frame_idx, - bool continue_to_next_branch) -{ - ThreadPlanSP thread_plan_sp(new ThreadPlanStepOut (*this, - addr_context, - first_insn, - stop_other_threads, - stop_vote, - run_vote, - frame_idx, - eLazyBoolNo, - continue_to_next_branch)); - - ThreadPlanStepOut *new_plan = static_cast<ThreadPlanStepOut *>(thread_plan_sp.get()); - new_plan->ClearShouldStopHereCallbacks(); - - if (thread_plan_sp->ValidatePlan(nullptr)) - { - QueueThreadPlan (thread_plan_sp, abort_other_plans); - return thread_plan_sp; - } - else - { - return ThreadPlanSP(); - } -} - -ThreadPlanSP -Thread::QueueThreadPlanForStepThrough (StackID &return_stack_id, bool abort_other_plans, bool stop_other_threads) -{ - ThreadPlanSP thread_plan_sp(new ThreadPlanStepThrough (*this, return_stack_id, stop_other_threads)); - if (!thread_plan_sp || !thread_plan_sp->ValidatePlan(nullptr)) - return ThreadPlanSP(); - - QueueThreadPlan (thread_plan_sp, abort_other_plans); +ThreadPlanSP Thread::QueueThreadPlanForStepInRange( + bool abort_other_plans, const LineEntry &line_entry, + const SymbolContext &addr_context, const char *step_in_target, + lldb::RunMode stop_other_threads, + LazyBool step_in_avoids_code_without_debug_info, + LazyBool step_out_avoids_code_without_debug_info) { + return QueueThreadPlanForStepInRange( + abort_other_plans, line_entry.GetSameLineContiguousAddressRange(), + addr_context, step_in_target, stop_other_threads, + step_in_avoids_code_without_debug_info, + step_out_avoids_code_without_debug_info); +} + +ThreadPlanSP Thread::QueueThreadPlanForStepOut( + bool abort_other_plans, SymbolContext *addr_context, bool first_insn, + bool stop_other_threads, Vote stop_vote, Vote run_vote, uint32_t frame_idx, + LazyBool step_out_avoids_code_without_debug_info) { + ThreadPlanSP thread_plan_sp(new ThreadPlanStepOut( + *this, addr_context, first_insn, stop_other_threads, stop_vote, run_vote, + frame_idx, step_out_avoids_code_without_debug_info)); + + if (thread_plan_sp->ValidatePlan(nullptr)) { + QueueThreadPlan(thread_plan_sp, abort_other_plans); return thread_plan_sp; -} - -ThreadPlanSP -Thread::QueueThreadPlanForRunToAddress (bool abort_other_plans, - Address &target_addr, - bool stop_other_threads) -{ - ThreadPlanSP thread_plan_sp (new ThreadPlanRunToAddress (*this, target_addr, stop_other_threads)); - QueueThreadPlan (thread_plan_sp, abort_other_plans); + } else { + return ThreadPlanSP(); + } +} + +ThreadPlanSP Thread::QueueThreadPlanForStepOutNoShouldStop( + bool abort_other_plans, SymbolContext *addr_context, bool first_insn, + bool stop_other_threads, Vote stop_vote, Vote run_vote, uint32_t frame_idx, + bool continue_to_next_branch) { + const bool calculate_return_value = + false; // No need to calculate the return value here. + ThreadPlanSP thread_plan_sp(new ThreadPlanStepOut( + *this, addr_context, first_insn, stop_other_threads, stop_vote, run_vote, + frame_idx, eLazyBoolNo, continue_to_next_branch, calculate_return_value)); + + ThreadPlanStepOut *new_plan = + static_cast<ThreadPlanStepOut *>(thread_plan_sp.get()); + new_plan->ClearShouldStopHereCallbacks(); + + if (thread_plan_sp->ValidatePlan(nullptr)) { + QueueThreadPlan(thread_plan_sp, abort_other_plans); return thread_plan_sp; -} - -ThreadPlanSP -Thread::QueueThreadPlanForStepUntil (bool abort_other_plans, - lldb::addr_t *address_list, - size_t num_addresses, - bool stop_other_threads, - uint32_t frame_idx) -{ - ThreadPlanSP thread_plan_sp (new ThreadPlanStepUntil (*this, address_list, num_addresses, stop_other_threads, frame_idx)); - QueueThreadPlan (thread_plan_sp, abort_other_plans); + } else { + return ThreadPlanSP(); + } +} + +ThreadPlanSP Thread::QueueThreadPlanForStepThrough(StackID &return_stack_id, + bool abort_other_plans, + bool stop_other_threads) { + ThreadPlanSP thread_plan_sp( + new ThreadPlanStepThrough(*this, return_stack_id, stop_other_threads)); + if (!thread_plan_sp || !thread_plan_sp->ValidatePlan(nullptr)) + return ThreadPlanSP(); + + QueueThreadPlan(thread_plan_sp, abort_other_plans); + return thread_plan_sp; +} + +ThreadPlanSP Thread::QueueThreadPlanForRunToAddress(bool abort_other_plans, + Address &target_addr, + bool stop_other_threads) { + ThreadPlanSP thread_plan_sp( + new ThreadPlanRunToAddress(*this, target_addr, stop_other_threads)); + QueueThreadPlan(thread_plan_sp, abort_other_plans); + return thread_plan_sp; +} + +ThreadPlanSP Thread::QueueThreadPlanForStepUntil(bool abort_other_plans, + lldb::addr_t *address_list, + size_t num_addresses, + bool stop_other_threads, + uint32_t frame_idx) { + ThreadPlanSP thread_plan_sp(new ThreadPlanStepUntil( + *this, address_list, num_addresses, stop_other_threads, frame_idx)); + QueueThreadPlan(thread_plan_sp, abort_other_plans); + return thread_plan_sp; +} + +lldb::ThreadPlanSP Thread::QueueThreadPlanForStepScripted( + bool abort_other_plans, const char *class_name, bool stop_other_threads) { + ThreadPlanSP thread_plan_sp(new ThreadPlanPython(*this, class_name)); + QueueThreadPlan(thread_plan_sp, abort_other_plans); + // This seems a little funny, but I don't want to have to split up the + // constructor and the + // DidPush in the scripted plan, that seems annoying. + // That means the constructor has to be in DidPush. + // So I have to validate the plan AFTER pushing it, and then take it off + // again... + if (!thread_plan_sp->ValidatePlan(nullptr)) { + DiscardThreadPlansUpToPlan(thread_plan_sp); + return ThreadPlanSP(); + } else return thread_plan_sp; - -} - -lldb::ThreadPlanSP -Thread::QueueThreadPlanForStepScripted (bool abort_other_plans, - const char *class_name, - bool stop_other_threads) -{ - ThreadPlanSP thread_plan_sp (new ThreadPlanPython (*this, class_name)); - QueueThreadPlan (thread_plan_sp, abort_other_plans); - // This seems a little funny, but I don't want to have to split up the constructor and the - // DidPush in the scripted plan, that seems annoying. - // That means the constructor has to be in DidPush. - // So I have to validate the plan AFTER pushing it, and then take it off again... - if (!thread_plan_sp->ValidatePlan(nullptr)) - { - DiscardThreadPlansUpToPlan(thread_plan_sp); - return ThreadPlanSP(); - } - else - return thread_plan_sp; -} - -uint32_t -Thread::GetIndexID () const -{ - return m_index_id; -} - -static void -PrintPlanElement (Stream *s, const ThreadPlanSP &plan, lldb::DescriptionLevel desc_level, int32_t elem_idx) -{ - s->IndentMore(); - s->Indent(); - s->Printf ("Element %d: ", elem_idx); - plan->GetDescription (s, desc_level); - s->EOL(); - s->IndentLess(); } -static void -PrintPlanStack (Stream *s, const std::vector<lldb::ThreadPlanSP> &plan_stack, lldb::DescriptionLevel desc_level, bool include_internal) -{ - int32_t print_idx = 0; - for (ThreadPlanSP plan_sp : plan_stack) - { - if (include_internal || !plan_sp->GetPrivate()) - { - PrintPlanElement (s, plan_sp, desc_level, print_idx++); - } - } -} - -void -Thread::DumpThreadPlans (Stream *s, - lldb::DescriptionLevel desc_level, - bool include_internal, - bool ignore_boring_threads) const -{ - uint32_t stack_size; - - if (ignore_boring_threads) - { - uint32_t stack_size = m_plan_stack.size(); - uint32_t completed_stack_size = m_completed_plan_stack.size(); - uint32_t discarded_stack_size = m_discarded_plan_stack.size(); - if (stack_size == 1 && completed_stack_size == 0 && discarded_stack_size == 0) - { - s->Printf ("thread #%u: tid = 0x%4.4" PRIx64 "\n", GetIndexID(), GetID()); - s->IndentMore(); - s->Indent(); - s->Printf("No active thread plans\n"); - s->IndentLess(); - return; - } - } - - s->Indent(); - s->Printf ("thread #%u: tid = 0x%4.4" PRIx64 ":\n", GetIndexID(), GetID()); - s->IndentMore(); +uint32_t Thread::GetIndexID() const { return m_index_id; } + +static void PrintPlanElement(Stream *s, const ThreadPlanSP &plan, + lldb::DescriptionLevel desc_level, + int32_t elem_idx) { + s->IndentMore(); + s->Indent(); + s->Printf("Element %d: ", elem_idx); + plan->GetDescription(s, desc_level); + s->EOL(); + s->IndentLess(); +} + +static void PrintPlanStack(Stream *s, + const std::vector<lldb::ThreadPlanSP> &plan_stack, + lldb::DescriptionLevel desc_level, + bool include_internal) { + int32_t print_idx = 0; + for (ThreadPlanSP plan_sp : plan_stack) { + if (include_internal || !plan_sp->GetPrivate()) { + PrintPlanElement(s, plan_sp, desc_level, print_idx++); + } + } +} + +void Thread::DumpThreadPlans(Stream *s, lldb::DescriptionLevel desc_level, + bool include_internal, + bool ignore_boring_threads) const { + uint32_t stack_size; + + if (ignore_boring_threads) { + uint32_t stack_size = m_plan_stack.size(); + uint32_t completed_stack_size = m_completed_plan_stack.size(); + uint32_t discarded_stack_size = m_discarded_plan_stack.size(); + if (stack_size == 1 && completed_stack_size == 0 && + discarded_stack_size == 0) { + s->Printf("thread #%u: tid = 0x%4.4" PRIx64 "\n", GetIndexID(), GetID()); + s->IndentMore(); + s->Indent(); + s->Printf("No active thread plans\n"); + s->IndentLess(); + return; + } + } + + s->Indent(); + s->Printf("thread #%u: tid = 0x%4.4" PRIx64 ":\n", GetIndexID(), GetID()); + s->IndentMore(); + s->Indent(); + s->Printf("Active plan stack:\n"); + PrintPlanStack(s, m_plan_stack, desc_level, include_internal); + + stack_size = m_completed_plan_stack.size(); + if (stack_size > 0) { s->Indent(); - s->Printf ("Active plan stack:\n"); - PrintPlanStack (s, m_plan_stack, desc_level, include_internal); + s->Printf("Completed Plan Stack:\n"); + PrintPlanStack(s, m_completed_plan_stack, desc_level, include_internal); + } - stack_size = m_completed_plan_stack.size(); - if (stack_size > 0) - { - s->Indent(); - s->Printf ("Completed Plan Stack:\n"); - PrintPlanStack (s, m_completed_plan_stack, desc_level, include_internal); - } - - stack_size = m_discarded_plan_stack.size(); - if (stack_size > 0) - { - s->Indent(); - s->Printf ("Discarded Plan Stack:\n"); - PrintPlanStack (s, m_discarded_plan_stack, desc_level, include_internal); - } + stack_size = m_discarded_plan_stack.size(); + if (stack_size > 0) { + s->Indent(); + s->Printf("Discarded Plan Stack:\n"); + PrintPlanStack(s, m_discarded_plan_stack, desc_level, include_internal); + } - s->IndentLess(); + s->IndentLess(); } -TargetSP -Thread::CalculateTarget () -{ - TargetSP target_sp; - ProcessSP process_sp(GetProcess()); - if (process_sp) - target_sp = process_sp->CalculateTarget(); - return target_sp; +TargetSP Thread::CalculateTarget() { + TargetSP target_sp; + ProcessSP process_sp(GetProcess()); + if (process_sp) + target_sp = process_sp->CalculateTarget(); + return target_sp; } -ProcessSP -Thread::CalculateProcess () -{ - return GetProcess(); -} +ProcessSP Thread::CalculateProcess() { return GetProcess(); } -ThreadSP -Thread::CalculateThread () -{ - return shared_from_this(); -} +ThreadSP Thread::CalculateThread() { return shared_from_this(); } -StackFrameSP -Thread::CalculateStackFrame () -{ - return StackFrameSP(); -} +StackFrameSP Thread::CalculateStackFrame() { return StackFrameSP(); } -void -Thread::CalculateExecutionContext (ExecutionContext &exe_ctx) -{ - exe_ctx.SetContext (shared_from_this()); +void Thread::CalculateExecutionContext(ExecutionContext &exe_ctx) { + exe_ctx.SetContext(shared_from_this()); } -StackFrameListSP -Thread::GetStackFrameList () -{ - StackFrameListSP frame_list_sp; - std::lock_guard<std::recursive_mutex> guard(m_frame_mutex); - if (m_curr_frames_sp) - { - frame_list_sp = m_curr_frames_sp; - } - else - { - frame_list_sp.reset(new StackFrameList (*this, m_prev_frames_sp, true)); - m_curr_frames_sp = frame_list_sp; - } - return frame_list_sp; +StackFrameListSP Thread::GetStackFrameList() { + StackFrameListSP frame_list_sp; + std::lock_guard<std::recursive_mutex> guard(m_frame_mutex); + if (m_curr_frames_sp) { + frame_list_sp = m_curr_frames_sp; + } else { + frame_list_sp.reset(new StackFrameList(*this, m_prev_frames_sp, true)); + m_curr_frames_sp = frame_list_sp; + } + return frame_list_sp; } -void -Thread::ClearStackFrames () -{ - std::lock_guard<std::recursive_mutex> guard(m_frame_mutex); +void Thread::ClearStackFrames() { + std::lock_guard<std::recursive_mutex> guard(m_frame_mutex); - Unwind *unwinder = GetUnwinder (); - if (unwinder) - unwinder->Clear(); + Unwind *unwinder = GetUnwinder(); + if (unwinder) + unwinder->Clear(); - // Only store away the old "reference" StackFrameList if we got all its frames: - // FIXME: At some point we can try to splice in the frames we have fetched into - // the new frame as we make it, but let's not try that now. - if (m_curr_frames_sp && m_curr_frames_sp->GetAllFramesFetched()) - m_prev_frames_sp.swap (m_curr_frames_sp); - m_curr_frames_sp.reset(); + // Only store away the old "reference" StackFrameList if we got all its + // frames: + // FIXME: At some point we can try to splice in the frames we have fetched + // into + // the new frame as we make it, but let's not try that now. + if (m_curr_frames_sp && m_curr_frames_sp->GetAllFramesFetched()) + m_prev_frames_sp.swap(m_curr_frames_sp); + m_curr_frames_sp.reset(); - m_extended_info.reset(); - m_extended_info_fetched = false; + m_extended_info.reset(); + m_extended_info_fetched = false; } -lldb::StackFrameSP -Thread::GetFrameWithConcreteFrameIndex (uint32_t unwind_idx) -{ - return GetStackFrameList()->GetFrameWithConcreteFrameIndex (unwind_idx); +lldb::StackFrameSP Thread::GetFrameWithConcreteFrameIndex(uint32_t unwind_idx) { + return GetStackFrameList()->GetFrameWithConcreteFrameIndex(unwind_idx); } -Error -Thread::ReturnFromFrameWithIndex (uint32_t frame_idx, lldb::ValueObjectSP return_value_sp, bool broadcast) -{ - StackFrameSP frame_sp = GetStackFrameAtIndex (frame_idx); - Error return_error; - - if (!frame_sp) - { - return_error.SetErrorStringWithFormat("Could not find frame with index %d in thread 0x%" PRIx64 ".", frame_idx, GetID()); - } - - return ReturnFromFrame(frame_sp, return_value_sp, broadcast); -} +Error Thread::ReturnFromFrameWithIndex(uint32_t frame_idx, + lldb::ValueObjectSP return_value_sp, + bool broadcast) { + StackFrameSP frame_sp = GetStackFrameAtIndex(frame_idx); + Error return_error; -Error -Thread::ReturnFromFrame (lldb::StackFrameSP frame_sp, lldb::ValueObjectSP return_value_sp, bool broadcast) -{ - Error return_error; - - if (!frame_sp) - { - return_error.SetErrorString("Can't return to a null frame."); - return return_error; - } - - Thread *thread = frame_sp->GetThread().get(); - uint32_t older_frame_idx = frame_sp->GetFrameIndex() + 1; - StackFrameSP older_frame_sp = thread->GetStackFrameAtIndex(older_frame_idx); - if (!older_frame_sp) - { - return_error.SetErrorString("No older frame to return to."); - return return_error; - } - - if (return_value_sp) - { - lldb::ABISP abi = thread->GetProcess()->GetABI(); - if (!abi) - { - return_error.SetErrorString("Could not find ABI to set return value."); - return return_error; - } - SymbolContext sc = frame_sp->GetSymbolContext(eSymbolContextFunction); - - // FIXME: ValueObject::Cast doesn't currently work correctly, at least not for scalars. - // Turn that back on when that works. - if (/* DISABLES CODE */ (0) && sc.function != nullptr) - { - Type *function_type = sc.function->GetType(); - if (function_type) - { - CompilerType return_type = sc.function->GetCompilerType().GetFunctionReturnType(); - if (return_type) - { - StreamString s; - return_type.DumpTypeDescription(&s); - ValueObjectSP cast_value_sp = return_value_sp->Cast(return_type); - if (cast_value_sp) - { - cast_value_sp->SetFormat(eFormatHex); - return_value_sp = cast_value_sp; - } - } - } - } - - return_error = abi->SetReturnValueObject(older_frame_sp, return_value_sp); - if (!return_error.Success()) - return return_error; - } - - // Now write the return registers for the chosen frame: - // Note, we can't use ReadAllRegisterValues->WriteAllRegisterValues, since the read & write - // cook their data - - StackFrameSP youngest_frame_sp = thread->GetStackFrameAtIndex(0); - if (youngest_frame_sp) - { - lldb::RegisterContextSP reg_ctx_sp (youngest_frame_sp->GetRegisterContext()); - if (reg_ctx_sp) - { - bool copy_success = reg_ctx_sp->CopyFromRegisterContext(older_frame_sp->GetRegisterContext()); - if (copy_success) - { - thread->DiscardThreadPlans(true); - thread->ClearStackFrames(); - if (broadcast && EventTypeHasListeners(eBroadcastBitStackChanged)) - BroadcastEvent(eBroadcastBitStackChanged, new ThreadEventData (this->shared_from_this())); - } - else - { - return_error.SetErrorString("Could not reset register values."); - } - } - else - { - return_error.SetErrorString("Frame has no register context."); - } - } - else - { - return_error.SetErrorString("Returned past top frame."); - } - return return_error; -} + if (!frame_sp) { + return_error.SetErrorStringWithFormat( + "Could not find frame with index %d in thread 0x%" PRIx64 ".", + frame_idx, GetID()); + } -static void DumpAddressList (Stream &s, const std::vector<Address> &list, ExecutionContextScope *exe_scope) -{ - for (size_t n=0;n<list.size();n++) - { - s << "\t"; - list[n].Dump (&s, exe_scope, Address::DumpStyleResolvedDescription, Address::DumpStyleSectionNameOffset); - s << "\n"; - } + return ReturnFromFrame(frame_sp, return_value_sp, broadcast); } -Error -Thread::JumpToLine (const FileSpec &file, uint32_t line, bool can_leave_function, std::string *warnings) -{ - ExecutionContext exe_ctx (GetStackFrameAtIndex(0)); - Target *target = exe_ctx.GetTargetPtr(); - TargetSP target_sp = exe_ctx.GetTargetSP(); - RegisterContext *reg_ctx = exe_ctx.GetRegisterContext(); - StackFrame *frame = exe_ctx.GetFramePtr(); - const SymbolContext &sc = frame->GetSymbolContext(eSymbolContextFunction); - - // Find candidate locations. - std::vector<Address> candidates, within_function, outside_function; - target->GetImages().FindAddressesForLine (target_sp, file, line, sc.function, within_function, outside_function); - - // If possible, we try and stay within the current function. - // Within a function, we accept multiple locations (optimized code may do this, - // there's no solution here so we do the best we can). - // However if we're trying to leave the function, we don't know how to pick the - // right location, so if there's more than one then we bail. - if (!within_function.empty()) - candidates = within_function; - else if (outside_function.size() == 1 && can_leave_function) - candidates = outside_function; - - // Check if we got anything. - if (candidates.empty()) - { - if (outside_function.empty()) - { - return Error("Cannot locate an address for %s:%i.", - file.GetFilename().AsCString(), line); - } - else if (outside_function.size() == 1) - { - return Error("%s:%i is outside the current function.", - file.GetFilename().AsCString(), line); - } - else - { - StreamString sstr; - DumpAddressList(sstr, outside_function, target); - return Error("%s:%i has multiple candidate locations:\n%s", - file.GetFilename().AsCString(), line, sstr.GetString().c_str()); - } - } +Error Thread::ReturnFromFrame(lldb::StackFrameSP frame_sp, + lldb::ValueObjectSP return_value_sp, + bool broadcast) { + Error return_error; - // Accept the first location, warn about any others. - Address dest = candidates[0]; - if (warnings && candidates.size() > 1) - { - StreamString sstr; - sstr.Printf("%s:%i appears multiple times in this function, selecting the first location:\n", - file.GetFilename().AsCString(), line); - DumpAddressList(sstr, candidates, target); - *warnings = sstr.GetString(); - } - - if (!reg_ctx->SetPC (dest)) - return Error("Cannot change PC to target address."); - - return Error(); -} + if (!frame_sp) { + return_error.SetErrorString("Can't return to a null frame."); + return return_error; + } -void -Thread::DumpUsingSettingsFormat (Stream &strm, uint32_t frame_idx) -{ - ExecutionContext exe_ctx (shared_from_this()); - Process *process = exe_ctx.GetProcessPtr(); - if (process == nullptr) - return; - - StackFrameSP frame_sp; - SymbolContext frame_sc; - if (frame_idx != LLDB_INVALID_FRAME_ID) - { - frame_sp = GetStackFrameAtIndex (frame_idx); - if (frame_sp) - { - exe_ctx.SetFrameSP(frame_sp); - frame_sc = frame_sp->GetSymbolContext(eSymbolContextEverything); + Thread *thread = frame_sp->GetThread().get(); + uint32_t older_frame_idx = frame_sp->GetFrameIndex() + 1; + StackFrameSP older_frame_sp = thread->GetStackFrameAtIndex(older_frame_idx); + if (!older_frame_sp) { + return_error.SetErrorString("No older frame to return to."); + return return_error; + } + + if (return_value_sp) { + lldb::ABISP abi = thread->GetProcess()->GetABI(); + if (!abi) { + return_error.SetErrorString("Could not find ABI to set return value."); + return return_error; + } + SymbolContext sc = frame_sp->GetSymbolContext(eSymbolContextFunction); + + // FIXME: ValueObject::Cast doesn't currently work correctly, at least not + // for scalars. + // Turn that back on when that works. + if (/* DISABLES CODE */ (0) && sc.function != nullptr) { + Type *function_type = sc.function->GetType(); + if (function_type) { + CompilerType return_type = + sc.function->GetCompilerType().GetFunctionReturnType(); + if (return_type) { + StreamString s; + return_type.DumpTypeDescription(&s); + ValueObjectSP cast_value_sp = return_value_sp->Cast(return_type); + if (cast_value_sp) { + cast_value_sp->SetFormat(eFormatHex); + return_value_sp = cast_value_sp; + } } - } - - const FormatEntity::Entry *thread_format = exe_ctx.GetTargetRef().GetDebugger().GetThreadFormat(); - assert (thread_format); - - FormatEntity::Format(*thread_format, - strm, - frame_sp ? &frame_sc : nullptr, - &exe_ctx, - nullptr, - nullptr, - false, - false); -} - -void -Thread::SettingsInitialize () -{ -} - -void -Thread::SettingsTerminate () -{ -} - -lldb::addr_t -Thread::GetThreadPointer () -{ + } + } + + return_error = abi->SetReturnValueObject(older_frame_sp, return_value_sp); + if (!return_error.Success()) + return return_error; + } + + // Now write the return registers for the chosen frame: + // Note, we can't use ReadAllRegisterValues->WriteAllRegisterValues, since the + // read & write + // cook their data + + StackFrameSP youngest_frame_sp = thread->GetStackFrameAtIndex(0); + if (youngest_frame_sp) { + lldb::RegisterContextSP reg_ctx_sp(youngest_frame_sp->GetRegisterContext()); + if (reg_ctx_sp) { + bool copy_success = reg_ctx_sp->CopyFromRegisterContext( + older_frame_sp->GetRegisterContext()); + if (copy_success) { + thread->DiscardThreadPlans(true); + thread->ClearStackFrames(); + if (broadcast && EventTypeHasListeners(eBroadcastBitStackChanged)) + BroadcastEvent(eBroadcastBitStackChanged, + new ThreadEventData(this->shared_from_this())); + } else { + return_error.SetErrorString("Could not reset register values."); + } + } else { + return_error.SetErrorString("Frame has no register context."); + } + } else { + return_error.SetErrorString("Returned past top frame."); + } + return return_error; +} + +static void DumpAddressList(Stream &s, const std::vector<Address> &list, + ExecutionContextScope *exe_scope) { + for (size_t n = 0; n < list.size(); n++) { + s << "\t"; + list[n].Dump(&s, exe_scope, Address::DumpStyleResolvedDescription, + Address::DumpStyleSectionNameOffset); + s << "\n"; + } +} + +Error Thread::JumpToLine(const FileSpec &file, uint32_t line, + bool can_leave_function, std::string *warnings) { + ExecutionContext exe_ctx(GetStackFrameAtIndex(0)); + Target *target = exe_ctx.GetTargetPtr(); + TargetSP target_sp = exe_ctx.GetTargetSP(); + RegisterContext *reg_ctx = exe_ctx.GetRegisterContext(); + StackFrame *frame = exe_ctx.GetFramePtr(); + const SymbolContext &sc = frame->GetSymbolContext(eSymbolContextFunction); + + // Find candidate locations. + std::vector<Address> candidates, within_function, outside_function; + target->GetImages().FindAddressesForLine(target_sp, file, line, sc.function, + within_function, outside_function); + + // If possible, we try and stay within the current function. + // Within a function, we accept multiple locations (optimized code may do + // this, + // there's no solution here so we do the best we can). + // However if we're trying to leave the function, we don't know how to pick + // the + // right location, so if there's more than one then we bail. + if (!within_function.empty()) + candidates = within_function; + else if (outside_function.size() == 1 && can_leave_function) + candidates = outside_function; + + // Check if we got anything. + if (candidates.empty()) { + if (outside_function.empty()) { + return Error("Cannot locate an address for %s:%i.", + file.GetFilename().AsCString(), line); + } else if (outside_function.size() == 1) { + return Error("%s:%i is outside the current function.", + file.GetFilename().AsCString(), line); + } else { + StreamString sstr; + DumpAddressList(sstr, outside_function, target); + return Error("%s:%i has multiple candidate locations:\n%s", + file.GetFilename().AsCString(), line, sstr.GetData()); + } + } + + // Accept the first location, warn about any others. + Address dest = candidates[0]; + if (warnings && candidates.size() > 1) { + StreamString sstr; + sstr.Printf("%s:%i appears multiple times in this function, selecting the " + "first location:\n", + file.GetFilename().AsCString(), line); + DumpAddressList(sstr, candidates, target); + *warnings = sstr.GetString(); + } + + if (!reg_ctx->SetPC(dest)) + return Error("Cannot change PC to target address."); + + return Error(); +} + +void Thread::DumpUsingSettingsFormat(Stream &strm, uint32_t frame_idx, + bool stop_format) { + ExecutionContext exe_ctx(shared_from_this()); + Process *process = exe_ctx.GetProcessPtr(); + if (process == nullptr) + return; + + StackFrameSP frame_sp; + SymbolContext frame_sc; + if (frame_idx != LLDB_INVALID_FRAME_ID) { + frame_sp = GetStackFrameAtIndex(frame_idx); + if (frame_sp) { + exe_ctx.SetFrameSP(frame_sp); + frame_sc = frame_sp->GetSymbolContext(eSymbolContextEverything); + } + } + + const FormatEntity::Entry *thread_format; + if (stop_format) + thread_format = exe_ctx.GetTargetRef().GetDebugger().GetThreadStopFormat(); + else + thread_format = exe_ctx.GetTargetRef().GetDebugger().GetThreadFormat(); + + assert(thread_format); + + FormatEntity::Format(*thread_format, strm, frame_sp ? &frame_sc : nullptr, + &exe_ctx, nullptr, nullptr, false, false); +} + +void Thread::SettingsInitialize() {} + +void Thread::SettingsTerminate() {} + +lldb::addr_t Thread::GetThreadPointer() { return LLDB_INVALID_ADDRESS; } + +addr_t Thread::GetThreadLocalData(const ModuleSP module, + lldb::addr_t tls_file_addr) { + // The default implementation is to ask the dynamic loader for it. + // This can be overridden for specific platforms. + DynamicLoader *loader = GetProcess()->GetDynamicLoader(); + if (loader) + return loader->GetThreadLocalData(module, shared_from_this(), + tls_file_addr); + else return LLDB_INVALID_ADDRESS; } -addr_t -Thread::GetThreadLocalData(const ModuleSP module, lldb::addr_t tls_file_addr) -{ - // The default implementation is to ask the dynamic loader for it. - // This can be overridden for specific platforms. - DynamicLoader *loader = GetProcess()->GetDynamicLoader(); - if (loader) - return loader->GetThreadLocalData(module, shared_from_this(), tls_file_addr); - else - return LLDB_INVALID_ADDRESS; -} - -bool -Thread::SafeToCallFunctions () -{ - Process *process = GetProcess().get(); - if (process) - { - SystemRuntime *runtime = process->GetSystemRuntime (); - if (runtime) - { - return runtime->SafeToCallFunctionsOnThisThread (shared_from_this()); - } +bool Thread::SafeToCallFunctions() { + Process *process = GetProcess().get(); + if (process) { + SystemRuntime *runtime = process->GetSystemRuntime(); + if (runtime) { + return runtime->SafeToCallFunctionsOnThisThread(shared_from_this()); } - return true; + } + return true; } lldb::StackFrameSP -Thread::GetStackFrameSPForStackFramePtr (StackFrame *stack_frame_ptr) -{ - return GetStackFrameList()->GetStackFrameSPForStackFramePtr (stack_frame_ptr); -} - -const char * -Thread::StopReasonAsCString (lldb::StopReason reason) -{ - switch (reason) - { - case eStopReasonInvalid: return "invalid"; - case eStopReasonNone: return "none"; - case eStopReasonTrace: return "trace"; - case eStopReasonBreakpoint: return "breakpoint"; - case eStopReasonWatchpoint: return "watchpoint"; - case eStopReasonSignal: return "signal"; - case eStopReasonException: return "exception"; - case eStopReasonExec: return "exec"; - case eStopReasonPlanComplete: return "plan complete"; - case eStopReasonThreadExiting: return "thread exiting"; - case eStopReasonInstrumentation: return "instrumentation break"; - } - - static char unknown_state_string[64]; - snprintf(unknown_state_string, sizeof (unknown_state_string), "StopReason = %i", reason); - return unknown_state_string; -} - -const char * -Thread::RunModeAsCString (lldb::RunMode mode) -{ - switch (mode) - { - case eOnlyThisThread: return "only this thread"; - case eAllThreads: return "all threads"; - case eOnlyDuringStepping: return "only during stepping"; - } - - static char unknown_state_string[64]; - snprintf(unknown_state_string, sizeof (unknown_state_string), "RunMode = %i", mode); - return unknown_state_string; -} +Thread::GetStackFrameSPForStackFramePtr(StackFrame *stack_frame_ptr) { + return GetStackFrameList()->GetStackFrameSPForStackFramePtr(stack_frame_ptr); +} + +const char *Thread::StopReasonAsCString(lldb::StopReason reason) { + switch (reason) { + case eStopReasonInvalid: + return "invalid"; + case eStopReasonNone: + return "none"; + case eStopReasonTrace: + return "trace"; + case eStopReasonBreakpoint: + return "breakpoint"; + case eStopReasonWatchpoint: + return "watchpoint"; + case eStopReasonSignal: + return "signal"; + case eStopReasonException: + return "exception"; + case eStopReasonExec: + return "exec"; + case eStopReasonPlanComplete: + return "plan complete"; + case eStopReasonThreadExiting: + return "thread exiting"; + case eStopReasonInstrumentation: + return "instrumentation break"; + } + + static char unknown_state_string[64]; + snprintf(unknown_state_string, sizeof(unknown_state_string), + "StopReason = %i", reason); + return unknown_state_string; +} + +const char *Thread::RunModeAsCString(lldb::RunMode mode) { + switch (mode) { + case eOnlyThisThread: + return "only this thread"; + case eAllThreads: + return "all threads"; + case eOnlyDuringStepping: + return "only during stepping"; + } + + static char unknown_state_string[64]; + snprintf(unknown_state_string, sizeof(unknown_state_string), "RunMode = %i", + mode); + return unknown_state_string; +} + +size_t Thread::GetStatus(Stream &strm, uint32_t start_frame, + uint32_t num_frames, uint32_t num_frames_with_source, + bool stop_format) { + ExecutionContext exe_ctx(shared_from_this()); + Target *target = exe_ctx.GetTargetPtr(); + Process *process = exe_ctx.GetProcessPtr(); + size_t num_frames_shown = 0; + strm.Indent(); + bool is_selected = false; + if (process) { + if (process->GetThreadList().GetSelectedThread().get() == this) + is_selected = true; + } + strm.Printf("%c ", is_selected ? '*' : ' '); + if (target && target->GetDebugger().GetUseExternalEditor()) { + StackFrameSP frame_sp = GetStackFrameAtIndex(start_frame); + if (frame_sp) { + SymbolContext frame_sc( + frame_sp->GetSymbolContext(eSymbolContextLineEntry)); + if (frame_sc.line_entry.line != 0 && frame_sc.line_entry.file) { + Host::OpenFileInExternalEditor(frame_sc.line_entry.file, + frame_sc.line_entry.line); + } + } + } + + DumpUsingSettingsFormat(strm, start_frame, stop_format); + + if (num_frames > 0) { + strm.IndentMore(); + + const bool show_frame_info = true; + + const char *selected_frame_marker = nullptr; + if (num_frames == 1 || + (GetID() != GetProcess()->GetThreadList().GetSelectedThread()->GetID())) + strm.IndentMore(); + else + selected_frame_marker = "* "; -size_t -Thread::GetStatus (Stream &strm, uint32_t start_frame, uint32_t num_frames, uint32_t num_frames_with_source) -{ - ExecutionContext exe_ctx (shared_from_this()); - Target *target = exe_ctx.GetTargetPtr(); - Process *process = exe_ctx.GetProcessPtr(); - size_t num_frames_shown = 0; - strm.Indent(); - bool is_selected = false; - if (process) - { - if (process->GetThreadList().GetSelectedThread().get() == this) - is_selected = true; - } - strm.Printf("%c ", is_selected ? '*' : ' '); - if (target && target->GetDebugger().GetUseExternalEditor()) - { - StackFrameSP frame_sp = GetStackFrameAtIndex(start_frame); - if (frame_sp) - { - SymbolContext frame_sc(frame_sp->GetSymbolContext (eSymbolContextLineEntry)); - if (frame_sc.line_entry.line != 0 && frame_sc.line_entry.file) - { - Host::OpenFileInExternalEditor (frame_sc.line_entry.file, frame_sc.line_entry.line); - } - } - } - - DumpUsingSettingsFormat (strm, start_frame); - - if (num_frames > 0) - { - strm.IndentMore(); - - const bool show_frame_info = true; - - const char *selected_frame_marker = nullptr; - if (num_frames == 1 || (GetID() != GetProcess()->GetThreadList().GetSelectedThread()->GetID())) - strm.IndentMore (); - else - selected_frame_marker = "* "; - - num_frames_shown = GetStackFrameList ()->GetStatus (strm, - start_frame, - num_frames, - show_frame_info, - num_frames_with_source, - selected_frame_marker); - if (num_frames == 1) - strm.IndentLess(); - strm.IndentLess(); - } - return num_frames_shown; + num_frames_shown = GetStackFrameList()->GetStatus( + strm, start_frame, num_frames, show_frame_info, num_frames_with_source, + selected_frame_marker); + if (num_frames == 1) + strm.IndentLess(); + strm.IndentLess(); + } + return num_frames_shown; } -bool -Thread::GetDescription (Stream &strm, lldb::DescriptionLevel level, bool print_json_thread, bool print_json_stopinfo) -{ - DumpUsingSettingsFormat (strm, 0); - strm.Printf("\n"); +bool Thread::GetDescription(Stream &strm, lldb::DescriptionLevel level, + bool print_json_thread, bool print_json_stopinfo) { + const bool stop_format = false; + DumpUsingSettingsFormat(strm, 0, stop_format); + strm.Printf("\n"); - StructuredData::ObjectSP thread_info = GetExtendedInfo(); - - if (print_json_thread || print_json_stopinfo) - { - if (thread_info && print_json_thread) - { - thread_info->Dump (strm); - strm.Printf("\n"); - } - - if (print_json_stopinfo && m_stop_info_sp) - { - StructuredData::ObjectSP stop_info = m_stop_info_sp->GetExtendedInfo(); - if (stop_info) - { - stop_info->Dump (strm); - strm.Printf("\n"); - } - } + StructuredData::ObjectSP thread_info = GetExtendedInfo(); - return true; + if (print_json_thread || print_json_stopinfo) { + if (thread_info && print_json_thread) { + thread_info->Dump(strm); + strm.Printf("\n"); } - if (thread_info) - { - StructuredData::ObjectSP activity = thread_info->GetObjectForDotSeparatedPath("activity"); - StructuredData::ObjectSP breadcrumb = thread_info->GetObjectForDotSeparatedPath("breadcrumb"); - StructuredData::ObjectSP messages = thread_info->GetObjectForDotSeparatedPath("trace_messages"); - - bool printed_activity = false; - if (activity && activity->GetType() == StructuredData::Type::eTypeDictionary) - { - StructuredData::Dictionary *activity_dict = activity->GetAsDictionary(); - StructuredData::ObjectSP id = activity_dict->GetValueForKey("id"); - StructuredData::ObjectSP name = activity_dict->GetValueForKey("name"); - if (name && name->GetType() == StructuredData::Type::eTypeString - && id && id->GetType() == StructuredData::Type::eTypeInteger) - { - strm.Printf(" Activity '%s', 0x%" PRIx64 "\n", name->GetAsString()->GetValue().c_str(), id->GetAsInteger()->GetValue()); - } - printed_activity = true; - } - bool printed_breadcrumb = false; - if (breadcrumb && breadcrumb->GetType() == StructuredData::Type::eTypeDictionary) - { - if (printed_activity) - strm.Printf ("\n"); - StructuredData::Dictionary *breadcrumb_dict = breadcrumb->GetAsDictionary(); - StructuredData::ObjectSP breadcrumb_text = breadcrumb_dict->GetValueForKey ("name"); - if (breadcrumb_text && breadcrumb_text->GetType() == StructuredData::Type::eTypeString) - { - strm.Printf (" Current Breadcrumb: %s\n", breadcrumb_text->GetAsString()->GetValue().c_str()); - } - printed_breadcrumb = true; - } - if (messages && messages->GetType() == StructuredData::Type::eTypeArray) - { - if (printed_breadcrumb) - strm.Printf("\n"); - StructuredData::Array *messages_array = messages->GetAsArray(); - const size_t msg_count = messages_array->GetSize(); - if (msg_count > 0) - { - strm.Printf (" %zu trace messages:\n", msg_count); - for (size_t i = 0; i < msg_count; i++) - { - StructuredData::ObjectSP message = messages_array->GetItemAtIndex(i); - if (message && message->GetType() == StructuredData::Type::eTypeDictionary) - { - StructuredData::Dictionary *message_dict = message->GetAsDictionary(); - StructuredData::ObjectSP message_text = message_dict->GetValueForKey ("message"); - if (message_text && message_text->GetType() == StructuredData::Type::eTypeString) - { - strm.Printf (" %s\n", message_text->GetAsString()->GetValue().c_str()); - } - } - } - } - } + if (print_json_stopinfo && m_stop_info_sp) { + StructuredData::ObjectSP stop_info = m_stop_info_sp->GetExtendedInfo(); + if (stop_info) { + stop_info->Dump(strm); + strm.Printf("\n"); + } } return true; -} - -size_t -Thread::GetStackFrameStatus (Stream& strm, - uint32_t first_frame, - uint32_t num_frames, - bool show_frame_info, - uint32_t num_frames_with_source) -{ - return GetStackFrameList()->GetStatus (strm, - first_frame, - num_frames, - show_frame_info, - num_frames_with_source); -} - -Unwind * -Thread::GetUnwinder () -{ - if (!m_unwinder_ap) - { - const ArchSpec target_arch (CalculateTarget()->GetArchitecture ()); - const llvm::Triple::ArchType machine = target_arch.GetMachine(); - switch (machine) - { - case llvm::Triple::x86_64: - case llvm::Triple::x86: - case llvm::Triple::arm: - case llvm::Triple::aarch64: - case llvm::Triple::thumb: - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::mips64: - case llvm::Triple::mips64el: - case llvm::Triple::ppc: - case llvm::Triple::ppc64: - case llvm::Triple::systemz: - case llvm::Triple::hexagon: - m_unwinder_ap.reset (new UnwindLLDB (*this)); - break; - - default: - if (target_arch.GetTriple().getVendor() == llvm::Triple::Apple) - m_unwinder_ap.reset (new UnwindMacOSXFrameBackchain (*this)); - break; - } - } - return m_unwinder_ap.get(); -} - -void -Thread::Flush () -{ - ClearStackFrames (); - m_reg_context_sp.reset(); -} - -bool -Thread::IsStillAtLastBreakpointHit () -{ - // If we are currently stopped at a breakpoint, always return that stopinfo and don't reset it. - // This allows threads to maintain their breakpoint stopinfo, such as when thread-stepping in - // multithreaded programs. - if (m_stop_info_sp) { - StopReason stop_reason = m_stop_info_sp->GetStopReason(); - if (stop_reason == lldb::eStopReasonBreakpoint) { - uint64_t value = m_stop_info_sp->GetValue(); - lldb::RegisterContextSP reg_ctx_sp (GetRegisterContext()); - if (reg_ctx_sp) - { - lldb::addr_t pc = reg_ctx_sp->GetPC(); - BreakpointSiteSP bp_site_sp = GetProcess()->GetBreakpointSiteList().FindByAddress(pc); - if (bp_site_sp && - static_cast<break_id_t>(value) == bp_site_sp->GetID()) - return true; + } + + if (thread_info) { + StructuredData::ObjectSP activity = + thread_info->GetObjectForDotSeparatedPath("activity"); + StructuredData::ObjectSP breadcrumb = + thread_info->GetObjectForDotSeparatedPath("breadcrumb"); + StructuredData::ObjectSP messages = + thread_info->GetObjectForDotSeparatedPath("trace_messages"); + + bool printed_activity = false; + if (activity && + activity->GetType() == StructuredData::Type::eTypeDictionary) { + StructuredData::Dictionary *activity_dict = activity->GetAsDictionary(); + StructuredData::ObjectSP id = activity_dict->GetValueForKey("id"); + StructuredData::ObjectSP name = activity_dict->GetValueForKey("name"); + if (name && name->GetType() == StructuredData::Type::eTypeString && id && + id->GetType() == StructuredData::Type::eTypeInteger) { + strm.Printf(" Activity '%s', 0x%" PRIx64 "\n", + name->GetAsString()->GetValue().c_str(), + id->GetAsInteger()->GetValue()); + } + printed_activity = true; + } + bool printed_breadcrumb = false; + if (breadcrumb && + breadcrumb->GetType() == StructuredData::Type::eTypeDictionary) { + if (printed_activity) + strm.Printf("\n"); + StructuredData::Dictionary *breadcrumb_dict = + breadcrumb->GetAsDictionary(); + StructuredData::ObjectSP breadcrumb_text = + breadcrumb_dict->GetValueForKey("name"); + if (breadcrumb_text && + breadcrumb_text->GetType() == StructuredData::Type::eTypeString) { + strm.Printf(" Current Breadcrumb: %s\n", + breadcrumb_text->GetAsString()->GetValue().c_str()); + } + printed_breadcrumb = true; + } + if (messages && messages->GetType() == StructuredData::Type::eTypeArray) { + if (printed_breadcrumb) + strm.Printf("\n"); + StructuredData::Array *messages_array = messages->GetAsArray(); + const size_t msg_count = messages_array->GetSize(); + if (msg_count > 0) { + strm.Printf(" %zu trace messages:\n", msg_count); + for (size_t i = 0; i < msg_count; i++) { + StructuredData::ObjectSP message = messages_array->GetItemAtIndex(i); + if (message && + message->GetType() == StructuredData::Type::eTypeDictionary) { + StructuredData::Dictionary *message_dict = + message->GetAsDictionary(); + StructuredData::ObjectSP message_text = + message_dict->GetValueForKey("message"); + if (message_text && + message_text->GetType() == StructuredData::Type::eTypeString) { + strm.Printf(" %s\n", + message_text->GetAsString()->GetValue().c_str()); } + } } - } - return false; -} - -Error -Thread::StepIn (bool source_step, - LazyBool step_in_avoids_code_without_debug_info, - LazyBool step_out_avoids_code_without_debug_info) - -{ - Error error; - Process *process = GetProcess().get(); - if (StateIsStoppedState (process->GetState(), true)) - { - StackFrameSP frame_sp = GetStackFrameAtIndex (0); - ThreadPlanSP new_plan_sp; - const lldb::RunMode run_mode = eOnlyThisThread; - const bool abort_other_plans = false; - - if (source_step && frame_sp && frame_sp->HasDebugInformation ()) - { - SymbolContext sc(frame_sp->GetSymbolContext(eSymbolContextEverything)); - new_plan_sp = QueueThreadPlanForStepInRange(abort_other_plans, - sc.line_entry, - sc, - nullptr, - run_mode, - step_in_avoids_code_without_debug_info, - step_out_avoids_code_without_debug_info); - } - else - { - new_plan_sp = QueueThreadPlanForStepSingleInstruction (false, - abort_other_plans, - run_mode); - } - - new_plan_sp->SetIsMasterPlan(true); - new_plan_sp->SetOkayToDiscard(false); - - // Why do we need to set the current thread by ID here??? - process->GetThreadList().SetSelectedThreadByID (GetID()); - error = process->Resume(); - } - else - { - error.SetErrorString("process not stopped"); - } - return error; -} - -Error -Thread::StepOver (bool source_step, - LazyBool step_out_avoids_code_without_debug_info) -{ - Error error; - Process *process = GetProcess().get(); - if (StateIsStoppedState (process->GetState(), true)) - { - StackFrameSP frame_sp = GetStackFrameAtIndex (0); - ThreadPlanSP new_plan_sp; - - const lldb::RunMode run_mode = eOnlyThisThread; - const bool abort_other_plans = false; - - if (source_step && frame_sp && frame_sp->HasDebugInformation ()) - { - SymbolContext sc(frame_sp->GetSymbolContext(eSymbolContextEverything)); - new_plan_sp = QueueThreadPlanForStepOverRange (abort_other_plans, - sc.line_entry, - sc, - run_mode, - step_out_avoids_code_without_debug_info); - } - else - { - new_plan_sp = QueueThreadPlanForStepSingleInstruction (true, - abort_other_plans, - run_mode); - } - - new_plan_sp->SetIsMasterPlan(true); - new_plan_sp->SetOkayToDiscard(false); - - // Why do we need to set the current thread by ID here??? - process->GetThreadList().SetSelectedThreadByID (GetID()); - error = process->Resume(); - } - else - { - error.SetErrorString("process not stopped"); - } - return error; -} - -Error -Thread::StepOut () -{ - Error error; - Process *process = GetProcess().get(); - if (StateIsStoppedState (process->GetState(), true)) - { - const bool first_instruction = false; - const bool stop_other_threads = false; - const bool abort_other_plans = false; - - ThreadPlanSP new_plan_sp(QueueThreadPlanForStepOut(abort_other_plans, - nullptr, - first_instruction, - stop_other_threads, - eVoteYes, - eVoteNoOpinion, - 0)); - - new_plan_sp->SetIsMasterPlan(true); - new_plan_sp->SetOkayToDiscard(false); - - // Why do we need to set the current thread by ID here??? - process->GetThreadList().SetSelectedThreadByID (GetID()); - error = process->Resume(); - } - else - { - error.SetErrorString("process not stopped"); - } - return error; + } + } + } + + return true; +} + +size_t Thread::GetStackFrameStatus(Stream &strm, uint32_t first_frame, + uint32_t num_frames, bool show_frame_info, + uint32_t num_frames_with_source) { + return GetStackFrameList()->GetStatus( + strm, first_frame, num_frames, show_frame_info, num_frames_with_source); +} + +Unwind *Thread::GetUnwinder() { + if (!m_unwinder_ap) { + const ArchSpec target_arch(CalculateTarget()->GetArchitecture()); + const llvm::Triple::ArchType machine = target_arch.GetMachine(); + switch (machine) { + case llvm::Triple::x86_64: + case llvm::Triple::x86: + case llvm::Triple::arm: + case llvm::Triple::aarch64: + case llvm::Triple::thumb: + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + case llvm::Triple::ppc: + case llvm::Triple::ppc64: + case llvm::Triple::systemz: + case llvm::Triple::hexagon: + m_unwinder_ap.reset(new UnwindLLDB(*this)); + break; + + default: + if (target_arch.GetTriple().getVendor() == llvm::Triple::Apple) + m_unwinder_ap.reset(new UnwindMacOSXFrameBackchain(*this)); + break; + } + } + return m_unwinder_ap.get(); +} + +void Thread::Flush() { + ClearStackFrames(); + m_reg_context_sp.reset(); +} + +bool Thread::IsStillAtLastBreakpointHit() { + // If we are currently stopped at a breakpoint, always return that stopinfo + // and don't reset it. + // This allows threads to maintain their breakpoint stopinfo, such as when + // thread-stepping in + // multithreaded programs. + if (m_stop_info_sp) { + StopReason stop_reason = m_stop_info_sp->GetStopReason(); + if (stop_reason == lldb::eStopReasonBreakpoint) { + uint64_t value = m_stop_info_sp->GetValue(); + lldb::RegisterContextSP reg_ctx_sp(GetRegisterContext()); + if (reg_ctx_sp) { + lldb::addr_t pc = reg_ctx_sp->GetPC(); + BreakpointSiteSP bp_site_sp = + GetProcess()->GetBreakpointSiteList().FindByAddress(pc); + if (bp_site_sp && static_cast<break_id_t>(value) == bp_site_sp->GetID()) + return true; + } + } + } + return false; +} + +Error Thread::StepIn(bool source_step, + LazyBool step_in_avoids_code_without_debug_info, + LazyBool step_out_avoids_code_without_debug_info) + +{ + Error error; + Process *process = GetProcess().get(); + if (StateIsStoppedState(process->GetState(), true)) { + StackFrameSP frame_sp = GetStackFrameAtIndex(0); + ThreadPlanSP new_plan_sp; + const lldb::RunMode run_mode = eOnlyThisThread; + const bool abort_other_plans = false; + + if (source_step && frame_sp && frame_sp->HasDebugInformation()) { + SymbolContext sc(frame_sp->GetSymbolContext(eSymbolContextEverything)); + new_plan_sp = QueueThreadPlanForStepInRange( + abort_other_plans, sc.line_entry, sc, nullptr, run_mode, + step_in_avoids_code_without_debug_info, + step_out_avoids_code_without_debug_info); + } else { + new_plan_sp = QueueThreadPlanForStepSingleInstruction( + false, abort_other_plans, run_mode); + } + + new_plan_sp->SetIsMasterPlan(true); + new_plan_sp->SetOkayToDiscard(false); + + // Why do we need to set the current thread by ID here??? + process->GetThreadList().SetSelectedThreadByID(GetID()); + error = process->Resume(); + } else { + error.SetErrorString("process not stopped"); + } + return error; +} + +Error Thread::StepOver(bool source_step, + LazyBool step_out_avoids_code_without_debug_info) { + Error error; + Process *process = GetProcess().get(); + if (StateIsStoppedState(process->GetState(), true)) { + StackFrameSP frame_sp = GetStackFrameAtIndex(0); + ThreadPlanSP new_plan_sp; + + const lldb::RunMode run_mode = eOnlyThisThread; + const bool abort_other_plans = false; + + if (source_step && frame_sp && frame_sp->HasDebugInformation()) { + SymbolContext sc(frame_sp->GetSymbolContext(eSymbolContextEverything)); + new_plan_sp = QueueThreadPlanForStepOverRange( + abort_other_plans, sc.line_entry, sc, run_mode, + step_out_avoids_code_without_debug_info); + } else { + new_plan_sp = QueueThreadPlanForStepSingleInstruction( + true, abort_other_plans, run_mode); + } + + new_plan_sp->SetIsMasterPlan(true); + new_plan_sp->SetOkayToDiscard(false); + + // Why do we need to set the current thread by ID here??? + process->GetThreadList().SetSelectedThreadByID(GetID()); + error = process->Resume(); + } else { + error.SetErrorString("process not stopped"); + } + return error; +} + +Error Thread::StepOut() { + Error error; + Process *process = GetProcess().get(); + if (StateIsStoppedState(process->GetState(), true)) { + const bool first_instruction = false; + const bool stop_other_threads = false; + const bool abort_other_plans = false; + + ThreadPlanSP new_plan_sp(QueueThreadPlanForStepOut( + abort_other_plans, nullptr, first_instruction, stop_other_threads, + eVoteYes, eVoteNoOpinion, 0)); + + new_plan_sp->SetIsMasterPlan(true); + new_plan_sp->SetOkayToDiscard(false); + + // Why do we need to set the current thread by ID here??? + process->GetThreadList().SetSelectedThreadByID(GetID()); + error = process->Resume(); + } else { + error.SetErrorString("process not stopped"); + } + return error; } |