//===-- CommandObjectThread.cpp ---------------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "CommandObjectThread.h" // C Includes // C++ Includes // Other libraries and framework includes // Project includes #include "lldb/Interpreter/Options.h" #include "lldb/Core/State.h" #include "lldb/Core/SourceManager.h" #include "lldb/Host/Host.h" #include "lldb/Interpreter/CommandInterpreter.h" #include "lldb/Interpreter/CommandReturnObject.h" #include "lldb/Target/Process.h" #include "lldb/Target/RegisterContext.h" #include "lldb/Target/Target.h" #include "lldb/Target/Thread.h" #include "lldb/Target/ThreadPlan.h" #include "lldb/Target/ThreadPlanStepInstruction.h" #include "lldb/Target/ThreadPlanStepOut.h" #include "lldb/Target/ThreadPlanStepRange.h" #include "lldb/Target/ThreadPlanStepInRange.h" #include "lldb/Symbol/LineTable.h" #include "lldb/Symbol/LineEntry.h" using namespace lldb; using namespace lldb_private; //------------------------------------------------------------------------- // CommandObjectThreadBacktrace //------------------------------------------------------------------------- class CommandObjectThreadBacktrace : public CommandObject { public: class CommandOptions : public Options { public: CommandOptions (CommandInterpreter &interpreter) : Options(interpreter) { // Keep default values of all options in one place: OptionParsingStarting () OptionParsingStarting (); } virtual ~CommandOptions () { } virtual Error SetOptionValue (uint32_t option_idx, const char *option_arg) { Error error; char short_option = (char) m_getopt_table[option_idx].val; switch (short_option) { case 'c': { bool success; int32_t input_count = Args::StringToSInt32 (option_arg, -1, 0, &success); if (!success) error.SetErrorStringWithFormat("Invalid integer value for option '%c'.\n", short_option); if (input_count < -1) m_count = UINT32_MAX; else m_count = input_count; } break; case 's': { bool success; m_start = Args::StringToUInt32 (option_arg, 0, 0, &success); if (!success) error.SetErrorStringWithFormat("Invalid integer value for option '%c'.\n", short_option); } break; default: error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); break; } return error; } void OptionParsingStarting () { m_count = UINT32_MAX; m_start = 0; } const OptionDefinition* GetDefinitions () { return g_option_table; } // Options table: Required for subclasses of Options. static OptionDefinition g_option_table[]; // Instance variables to hold the values for command options. uint32_t m_count; uint32_t m_start; }; CommandObjectThreadBacktrace (CommandInterpreter &interpreter) : CommandObject (interpreter, "thread backtrace", "Show the stack for one or more threads. If no threads are specified, show the currently selected thread. Use the thread-index \"all\" to see all threads.", NULL, eFlagProcessMustBeLaunched | eFlagProcessMustBePaused), m_options(interpreter) { CommandArgumentEntry arg; CommandArgumentData thread_idx_arg; // Define the first (and only) variant of this arg. thread_idx_arg.arg_type = eArgTypeThreadIndex; thread_idx_arg.arg_repetition = eArgRepeatStar; // There is only one variant this argument could be; put it into the argument entry. arg.push_back (thread_idx_arg); // Push the data for the first argument into the m_arguments vector. m_arguments.push_back (arg); } ~CommandObjectThreadBacktrace() { } virtual Options * GetOptions () { return &m_options; } virtual bool Execute (Args& command, CommandReturnObject &result) { result.SetStatus (eReturnStatusSuccessFinishResult); Stream &strm = result.GetOutputStream(); // Don't show source context when doing backtraces. const uint32_t num_frames_with_source = 0; if (command.GetArgumentCount() == 0) { ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); Thread *thread = exe_ctx.GetThreadPtr(); if (thread) { // Thread::GetStatus() returns the number of frames shown. if (thread->GetStatus (strm, m_options.m_start, m_options.m_count, num_frames_with_source)) { result.SetStatus (eReturnStatusSuccessFinishResult); } } else { result.AppendError ("invalid thread"); result.SetStatus (eReturnStatusFailed); } } else if (command.GetArgumentCount() == 1 && ::strcmp (command.GetArgumentAtIndex(0), "all") == 0) { Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); uint32_t num_threads = process->GetThreadList().GetSize(); for (uint32_t i = 0; i < num_threads; i++) { ThreadSP thread_sp = process->GetThreadList().GetThreadAtIndex(i); if (!thread_sp->GetStatus (strm, m_options.m_start, m_options.m_count, num_frames_with_source)) { result.AppendErrorWithFormat ("error displaying backtrace for thread: \"0x%4.4x\"\n", i); result.SetStatus (eReturnStatusFailed); return false; } if (i < num_threads - 1) result.AppendMessage(""); } } else { uint32_t num_args = command.GetArgumentCount(); Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); std::vector thread_sps; for (uint32_t i = 0; i < num_args; i++) { bool success; uint32_t thread_idx = Args::StringToUInt32(command.GetArgumentAtIndex(i), 0, 0, &success); if (!success) { result.AppendErrorWithFormat ("invalid thread specification: \"%s\"\n", command.GetArgumentAtIndex(i)); result.SetStatus (eReturnStatusFailed); return false; } thread_sps.push_back(process->GetThreadList().FindThreadByIndexID(thread_idx)); if (!thread_sps[i]) { result.AppendErrorWithFormat ("no thread with index: \"%s\"\n", command.GetArgumentAtIndex(i)); result.SetStatus (eReturnStatusFailed); return false; } } for (uint32_t i = 0; i < num_args; i++) { if (!thread_sps[i]->GetStatus (strm, m_options.m_start, m_options.m_count, num_frames_with_source)) { result.AppendErrorWithFormat ("error displaying backtrace for thread: \"%s\"\n", command.GetArgumentAtIndex(i)); result.SetStatus (eReturnStatusFailed); return false; } if (i < num_args - 1) result.AppendMessage(""); } } return result.Succeeded(); } protected: CommandOptions m_options; }; OptionDefinition CommandObjectThreadBacktrace::CommandOptions::g_option_table[] = { { LLDB_OPT_SET_1, false, "count", 'c', required_argument, NULL, 0, eArgTypeCount, "How many frames to display (-1 for all)"}, { LLDB_OPT_SET_1, false, "start", 's', required_argument, NULL, 0, eArgTypeFrameIndex, "Frame in which to start the backtrace"}, { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } }; enum StepScope { eStepScopeSource, eStepScopeInstruction }; class CommandObjectThreadStepWithTypeAndScope : public CommandObject { public: class CommandOptions : public Options { public: CommandOptions (CommandInterpreter &interpreter) : Options (interpreter) { // Keep default values of all options in one place: OptionParsingStarting () OptionParsingStarting (); } virtual ~CommandOptions () { } virtual Error SetOptionValue (uint32_t option_idx, const char *option_arg) { Error error; char short_option = (char) m_getopt_table[option_idx].val; switch (short_option) { case 'a': { bool success; m_avoid_no_debug = Args::StringToBoolean (option_arg, true, &success); if (!success) error.SetErrorStringWithFormat("Invalid boolean value for option '%c'.\n", short_option); } break; case 'm': { OptionEnumValueElement *enum_values = g_option_table[option_idx].enum_values; m_run_mode = (lldb::RunMode) Args::StringToOptionEnum(option_arg, enum_values, eOnlyDuringStepping, error); } break; case 'r': { m_avoid_regexp.clear(); m_avoid_regexp.assign(option_arg); } break; default: error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); break; } return error; } void OptionParsingStarting () { m_avoid_no_debug = true; m_run_mode = eOnlyDuringStepping; m_avoid_regexp.clear(); } const OptionDefinition* GetDefinitions () { return g_option_table; } // Options table: Required for subclasses of Options. static OptionDefinition g_option_table[]; // Instance variables to hold the values for command options. bool m_avoid_no_debug; RunMode m_run_mode; std::string m_avoid_regexp; }; CommandObjectThreadStepWithTypeAndScope (CommandInterpreter &interpreter, const char *name, const char *help, const char *syntax, uint32_t flags, StepType step_type, StepScope step_scope) : CommandObject (interpreter, name, help, syntax, flags), m_step_type (step_type), m_step_scope (step_scope), m_options (interpreter) { CommandArgumentEntry arg; CommandArgumentData thread_id_arg; // Define the first (and only) variant of this arg. thread_id_arg.arg_type = eArgTypeThreadID; thread_id_arg.arg_repetition = eArgRepeatOptional; // There is only one variant this argument could be; put it into the argument entry. arg.push_back (thread_id_arg); // Push the data for the first argument into the m_arguments vector. m_arguments.push_back (arg); } virtual ~CommandObjectThreadStepWithTypeAndScope () { } virtual Options * GetOptions () { return &m_options; } virtual bool Execute ( Args& command, CommandReturnObject &result ) { Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); bool synchronous_execution = m_interpreter.GetSynchronous(); if (process == NULL) { result.AppendError ("need a valid process to step"); result.SetStatus (eReturnStatusFailed); } else { const uint32_t num_threads = process->GetThreadList().GetSize(); Thread *thread = NULL; if (command.GetArgumentCount() == 0) { thread = process->GetThreadList().GetSelectedThread().get(); if (thread == NULL) { result.AppendError ("no selected thread in process"); result.SetStatus (eReturnStatusFailed); return false; } } else { const char *thread_idx_cstr = command.GetArgumentAtIndex(0); uint32_t step_thread_idx = Args::StringToUInt32 (thread_idx_cstr, LLDB_INVALID_INDEX32); if (step_thread_idx == LLDB_INVALID_INDEX32) { result.AppendErrorWithFormat ("Invalid thread index '%s'.\n", thread_idx_cstr); result.SetStatus (eReturnStatusFailed); return false; } thread = process->GetThreadList().FindThreadByIndexID(step_thread_idx).get(); if (thread == NULL) { result.AppendErrorWithFormat ("Thread index %u is out of range (valid values are 0 - %u).\n", step_thread_idx, num_threads); result.SetStatus (eReturnStatusFailed); return false; } } const bool abort_other_plans = false; const lldb::RunMode stop_other_threads = m_options.m_run_mode; // This is a bit unfortunate, but not all the commands in this command object support // only while stepping, so I use the bool for them. bool bool_stop_other_threads; if (m_options.m_run_mode == eAllThreads) bool_stop_other_threads = false; else bool_stop_other_threads = true; if (m_step_type == eStepTypeInto) { StackFrame *frame = thread->GetStackFrameAtIndex(0).get(); ThreadPlan *new_plan; if (frame->HasDebugInformation ()) { new_plan = thread->QueueThreadPlanForStepRange (abort_other_plans, m_step_type, frame->GetSymbolContext(eSymbolContextEverything).line_entry.range, frame->GetSymbolContext(eSymbolContextEverything), stop_other_threads, m_options.m_avoid_no_debug); if (new_plan && !m_options.m_avoid_regexp.empty()) { ThreadPlanStepInRange *step_in_range_plan = static_cast (new_plan); step_in_range_plan->SetAvoidRegexp(m_options.m_avoid_regexp.c_str()); } } else new_plan = thread->QueueThreadPlanForStepSingleInstruction (false, abort_other_plans, bool_stop_other_threads); process->GetThreadList().SetSelectedThreadByID (thread->GetID()); process->Resume (); } else if (m_step_type == eStepTypeOver) { StackFrame *frame = thread->GetStackFrameAtIndex(0).get(); ThreadPlan *new_plan; if (frame->HasDebugInformation()) new_plan = thread->QueueThreadPlanForStepRange (abort_other_plans, m_step_type, frame->GetSymbolContext(eSymbolContextEverything).line_entry.range, frame->GetSymbolContext(eSymbolContextEverything), stop_other_threads, false); else new_plan = thread->QueueThreadPlanForStepSingleInstruction (true, abort_other_plans, bool_stop_other_threads); // FIXME: This will keep the step plan on the thread stack when we hit a breakpoint while stepping over. // Maybe there should be a parameter to control this. new_plan->SetOkayToDiscard(false); process->GetThreadList().SetSelectedThreadByID (thread->GetID()); process->Resume (); } else if (m_step_type == eStepTypeTrace) { thread->QueueThreadPlanForStepSingleInstruction (false, abort_other_plans, bool_stop_other_threads); process->GetThreadList().SetSelectedThreadByID (thread->GetID()); process->Resume (); } else if (m_step_type == eStepTypeTraceOver) { thread->QueueThreadPlanForStepSingleInstruction (true, abort_other_plans, bool_stop_other_threads); process->GetThreadList().SetSelectedThreadByID (thread->GetID()); process->Resume (); } else if (m_step_type == eStepTypeOut) { ThreadPlan *new_plan; new_plan = thread->QueueThreadPlanForStepOut (abort_other_plans, NULL, false, bool_stop_other_threads, eVoteYes, eVoteNoOpinion, thread->GetSelectedFrameIndex()); // FIXME: This will keep the step plan on the thread stack when we hit a breakpoint while stepping over. // Maybe there should be a parameter to control this. new_plan->SetOkayToDiscard(false); process->GetThreadList().SetSelectedThreadByID (thread->GetID()); process->Resume (); } else { result.AppendError ("step type is not supported"); result.SetStatus (eReturnStatusFailed); } if (synchronous_execution) { StateType state = process->WaitForProcessToStop (NULL); //EventSP event_sp; //StateType state = process->WaitForStateChangedEvents (NULL, event_sp); //while (! StateIsStoppedState (state)) // { // state = process->WaitForStateChangedEvents (NULL, event_sp); // } process->GetThreadList().SetSelectedThreadByID (thread->GetID()); result.SetDidChangeProcessState (true); result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); result.SetStatus (eReturnStatusSuccessFinishNoResult); } } return result.Succeeded(); } protected: StepType m_step_type; StepScope m_step_scope; CommandOptions m_options; }; static OptionEnumValueElement g_tri_running_mode[] = { { eOnlyThisThread, "this-thread", "Run only this thread"}, { eAllThreads, "all-threads", "Run all threads"}, { eOnlyDuringStepping, "while-stepping", "Run only this thread while stepping"}, { 0, NULL, NULL } }; static OptionEnumValueElement g_duo_running_mode[] = { { eOnlyThisThread, "this-thread", "Run only this thread"}, { eAllThreads, "all-threads", "Run all threads"}, { 0, NULL, NULL } }; OptionDefinition CommandObjectThreadStepWithTypeAndScope::CommandOptions::g_option_table[] = { { LLDB_OPT_SET_1, false, "avoid-no-debug", 'a', required_argument, NULL, 0, eArgTypeBoolean, "A boolean value that sets whether step-in will step over functions with no debug information."}, { LLDB_OPT_SET_1, false, "run-mode", 'm', required_argument, g_tri_running_mode, 0, eArgTypeRunMode, "Determine how to run other threads while stepping the current thread."}, { LLDB_OPT_SET_1, false, "step-over-regexp",'r', required_argument, NULL, 0, eArgTypeRegularExpression, "A regular expression that defines function names to step over."}, { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } }; //------------------------------------------------------------------------- // CommandObjectThreadContinue //------------------------------------------------------------------------- class CommandObjectThreadContinue : public CommandObject { public: CommandObjectThreadContinue (CommandInterpreter &interpreter) : CommandObject (interpreter, "thread continue", "Continue execution of one or more threads in an active process.", NULL, eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) { CommandArgumentEntry arg; CommandArgumentData thread_idx_arg; // Define the first (and only) variant of this arg. thread_idx_arg.arg_type = eArgTypeThreadIndex; thread_idx_arg.arg_repetition = eArgRepeatPlus; // There is only one variant this argument could be; put it into the argument entry. arg.push_back (thread_idx_arg); // Push the data for the first argument into the m_arguments vector. m_arguments.push_back (arg); } virtual ~CommandObjectThreadContinue () { } virtual bool Execute ( Args& command, CommandReturnObject &result ) { bool synchronous_execution = m_interpreter.GetSynchronous (); if (!m_interpreter.GetDebugger().GetSelectedTarget().get()) { result.AppendError ("invalid target, create a debug target using the 'target create' command"); result.SetStatus (eReturnStatusFailed); return false; } Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); if (process == NULL) { result.AppendError ("no process exists. Cannot continue"); result.SetStatus (eReturnStatusFailed); return false; } StateType state = process->GetState(); if ((state == eStateCrashed) || (state == eStateStopped) || (state == eStateSuspended)) { const uint32_t num_threads = process->GetThreadList().GetSize(); uint32_t idx; const size_t argc = command.GetArgumentCount(); if (argc > 0) { std::vector resume_thread_indexes; for (uint32_t i=0; iGetThreadList().GetThreadAtIndex(idx).get(); if (find(resume_thread_indexes.begin(), resume_thread_indexes.end(), idx) != resume_thread_indexes.end()) { result.AppendMessageWithFormat ("%u ", idx); thread->SetResumeState (eStateRunning); } else { thread->SetResumeState (eStateSuspended); } } result.AppendMessageWithFormat ("in process %i\n", process->GetID()); } } else { Thread *current_thread = process->GetThreadList().GetSelectedThread().get(); if (current_thread == NULL) { result.AppendError ("the process doesn't have a current thread"); result.SetStatus (eReturnStatusFailed); return false; } // Set the actions that the threads should each take when resuming for (idx=0; idxGetThreadList().GetThreadAtIndex(idx).get(); if (thread == current_thread) { result.AppendMessageWithFormat ("Resuming thread 0x%4.4x in process %i\n", thread->GetID(), process->GetID()); thread->SetResumeState (eStateRunning); } else { thread->SetResumeState (eStateSuspended); } } } Error error (process->Resume()); if (error.Success()) { result.AppendMessageWithFormat ("Process %i resuming\n", process->GetID()); if (synchronous_execution) { state = process->WaitForProcessToStop (NULL); result.SetDidChangeProcessState (true); result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); result.SetStatus (eReturnStatusSuccessFinishNoResult); } else { result.SetStatus (eReturnStatusSuccessContinuingNoResult); } } else { result.AppendErrorWithFormat("Failed to resume process: %s\n", error.AsCString()); result.SetStatus (eReturnStatusFailed); } } else { result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n", StateAsCString(state)); result.SetStatus (eReturnStatusFailed); } return result.Succeeded(); } }; //------------------------------------------------------------------------- // CommandObjectThreadUntil //------------------------------------------------------------------------- class CommandObjectThreadUntil : public CommandObject { public: class CommandOptions : public Options { public: uint32_t m_thread_idx; uint32_t m_frame_idx; CommandOptions (CommandInterpreter &interpreter) : Options (interpreter), m_thread_idx(LLDB_INVALID_THREAD_ID), m_frame_idx(LLDB_INVALID_FRAME_ID) { // Keep default values of all options in one place: OptionParsingStarting () OptionParsingStarting (); } virtual ~CommandOptions () { } virtual Error SetOptionValue (uint32_t option_idx, const char *option_arg) { Error error; char short_option = (char) m_getopt_table[option_idx].val; switch (short_option) { case 't': { m_thread_idx = Args::StringToUInt32 (option_arg, LLDB_INVALID_INDEX32); if (m_thread_idx == LLDB_INVALID_INDEX32) { error.SetErrorStringWithFormat ("Invalid thread index '%s'.\n", option_arg); } } break; case 'f': { m_frame_idx = Args::StringToUInt32 (option_arg, LLDB_INVALID_FRAME_ID); if (m_frame_idx == LLDB_INVALID_FRAME_ID) { error.SetErrorStringWithFormat ("Invalid frame index '%s'.\n", option_arg); } } break; case 'm': { OptionEnumValueElement *enum_values = g_option_table[option_idx].enum_values; lldb::RunMode run_mode = (lldb::RunMode) Args::StringToOptionEnum(option_arg, enum_values, eOnlyDuringStepping, error); if (error.Success()) { if (run_mode == eAllThreads) m_stop_others = false; else m_stop_others = true; } } break; default: error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); break; } return error; } void OptionParsingStarting () { m_thread_idx = LLDB_INVALID_THREAD_ID; m_frame_idx = 0; m_stop_others = false; } const OptionDefinition* GetDefinitions () { return g_option_table; } uint32_t m_step_thread_idx; bool m_stop_others; // Options table: Required for subclasses of Options. static OptionDefinition g_option_table[]; // Instance variables to hold the values for command options. }; CommandObjectThreadUntil (CommandInterpreter &interpreter) : CommandObject (interpreter, "thread until", "Run the current or specified thread until it reaches a given line number or leaves the current function.", NULL, eFlagProcessMustBeLaunched | eFlagProcessMustBePaused), m_options (interpreter) { CommandArgumentEntry arg; CommandArgumentData line_num_arg; // Define the first (and only) variant of this arg. line_num_arg.arg_type = eArgTypeLineNum; line_num_arg.arg_repetition = eArgRepeatPlain; // There is only one variant this argument could be; put it into the argument entry. arg.push_back (line_num_arg); // Push the data for the first argument into the m_arguments vector. m_arguments.push_back (arg); } virtual ~CommandObjectThreadUntil () { } virtual Options * GetOptions () { return &m_options; } virtual bool Execute ( Args& command, CommandReturnObject &result ) { bool synchronous_execution = m_interpreter.GetSynchronous (); Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); if (target == NULL) { result.AppendError ("invalid target, create a debug target using the 'target create' command"); result.SetStatus (eReturnStatusFailed); return false; } Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); if (process == NULL) { result.AppendError ("need a valid process to step"); result.SetStatus (eReturnStatusFailed); } else { Thread *thread = NULL; uint32_t line_number; if (command.GetArgumentCount() != 1) { result.AppendErrorWithFormat ("No line number provided:\n%s", GetSyntax()); result.SetStatus (eReturnStatusFailed); return false; } line_number = Args::StringToUInt32 (command.GetArgumentAtIndex(0), UINT32_MAX); if (line_number == UINT32_MAX) { result.AppendErrorWithFormat ("Invalid line number: '%s'.\n", command.GetArgumentAtIndex(0)); result.SetStatus (eReturnStatusFailed); return false; } if (m_options.m_thread_idx == LLDB_INVALID_THREAD_ID) { thread = process->GetThreadList().GetSelectedThread().get(); } else { thread = process->GetThreadList().GetThreadAtIndex(m_options.m_thread_idx).get(); } if (thread == NULL) { const uint32_t num_threads = process->GetThreadList().GetSize(); result.AppendErrorWithFormat ("Thread index %u is out of range (valid values are 0 - %u).\n", m_options.m_thread_idx, num_threads); result.SetStatus (eReturnStatusFailed); return false; } const bool abort_other_plans = true; StackFrame *frame = thread->GetStackFrameAtIndex(m_options.m_frame_idx).get(); if (frame == NULL) { result.AppendErrorWithFormat ("Frame index %u is out of range for thread %u.\n", m_options.m_frame_idx, m_options.m_thread_idx); result.SetStatus (eReturnStatusFailed); return false; } ThreadPlan *new_plan; if (frame->HasDebugInformation ()) { // Finally we got here... Translate the given line number to a bunch of addresses: SymbolContext sc(frame->GetSymbolContext (eSymbolContextCompUnit)); LineTable *line_table = NULL; if (sc.comp_unit) line_table = sc.comp_unit->GetLineTable(); if (line_table == NULL) { result.AppendErrorWithFormat ("Failed to resolve the line table for frame %u of thread index %u.\n", m_options.m_frame_idx, m_options.m_thread_idx); result.SetStatus (eReturnStatusFailed); return false; } LineEntry function_start; uint32_t index_ptr = 0, end_ptr; std::vector address_list; // Find the beginning & end index of the AddressRange fun_addr_range = sc.function->GetAddressRange(); Address fun_start_addr = fun_addr_range.GetBaseAddress(); line_table->FindLineEntryByAddress (fun_start_addr, function_start, &index_ptr); Address fun_end_addr(fun_start_addr.GetSection(), fun_start_addr.GetOffset() + fun_addr_range.GetByteSize()); line_table->FindLineEntryByAddress (fun_end_addr, function_start, &end_ptr); bool all_in_function = true; while (index_ptr <= end_ptr) { LineEntry line_entry; const bool exact = false; index_ptr = sc.comp_unit->FindLineEntry(index_ptr, line_number, sc.comp_unit, exact, &line_entry); if (index_ptr == UINT32_MAX) break; addr_t address = line_entry.range.GetBaseAddress().GetLoadAddress(target); if (address != LLDB_INVALID_ADDRESS) { if (fun_addr_range.ContainsLoadAddress (address, target)) address_list.push_back (address); else all_in_function = false; } index_ptr++; } if (address_list.size() == 0) { if (all_in_function) result.AppendErrorWithFormat ("No line entries matching until target.\n"); else result.AppendErrorWithFormat ("Until target outside of the current function.\n"); result.SetStatus (eReturnStatusFailed); return false; } new_plan = thread->QueueThreadPlanForStepUntil (abort_other_plans, &address_list.front(), address_list.size(), m_options.m_stop_others, thread->GetSelectedFrameIndex ()); new_plan->SetOkayToDiscard(false); } else { result.AppendErrorWithFormat ("Frame index %u of thread %u has no debug information.\n", m_options.m_frame_idx, m_options.m_thread_idx); result.SetStatus (eReturnStatusFailed); return false; } process->GetThreadList().SetSelectedThreadByID (m_options.m_thread_idx); Error error (process->Resume ()); if (error.Success()) { result.AppendMessageWithFormat ("Process %i resuming\n", process->GetID()); if (synchronous_execution) { StateType state = process->WaitForProcessToStop (NULL); result.SetDidChangeProcessState (true); result.AppendMessageWithFormat ("Process %i %s\n", process->GetID(), StateAsCString (state)); result.SetStatus (eReturnStatusSuccessFinishNoResult); } else { result.SetStatus (eReturnStatusSuccessContinuingNoResult); } } else { result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString()); result.SetStatus (eReturnStatusFailed); } } return result.Succeeded(); } protected: CommandOptions m_options; }; OptionDefinition CommandObjectThreadUntil::CommandOptions::g_option_table[] = { { LLDB_OPT_SET_1, false, "frame", 'f', required_argument, NULL, 0, eArgTypeFrameIndex, "Frame index for until operation - defaults to 0"}, { LLDB_OPT_SET_1, false, "thread", 't', required_argument, NULL, 0, eArgTypeThreadIndex, "Thread index for the thread for until operation"}, { LLDB_OPT_SET_1, false, "run-mode",'m', required_argument, g_duo_running_mode, 0, eArgTypeRunMode,"Determine how to run other threads while stepping this one"}, { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } }; //------------------------------------------------------------------------- // CommandObjectThreadSelect //------------------------------------------------------------------------- class CommandObjectThreadSelect : public CommandObject { public: CommandObjectThreadSelect (CommandInterpreter &interpreter) : CommandObject (interpreter, "thread select", "Select a thread as the currently active thread.", NULL, eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) { CommandArgumentEntry arg; CommandArgumentData thread_idx_arg; // Define the first (and only) variant of this arg. thread_idx_arg.arg_type = eArgTypeThreadIndex; thread_idx_arg.arg_repetition = eArgRepeatPlain; // There is only one variant this argument could be; put it into the argument entry. arg.push_back (thread_idx_arg); // Push the data for the first argument into the m_arguments vector. m_arguments.push_back (arg); } virtual ~CommandObjectThreadSelect () { } virtual bool Execute ( Args& command, CommandReturnObject &result ) { Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); if (process == NULL) { result.AppendError ("no process"); result.SetStatus (eReturnStatusFailed); return false; } else if (command.GetArgumentCount() != 1) { result.AppendErrorWithFormat("'%s' takes exactly one thread index argument:\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); result.SetStatus (eReturnStatusFailed); return false; } uint32_t index_id = Args::StringToUInt32(command.GetArgumentAtIndex(0), 0, 0); Thread *new_thread = process->GetThreadList().FindThreadByIndexID(index_id).get(); if (new_thread == NULL) { result.AppendErrorWithFormat ("Invalid thread #%s.\n", command.GetArgumentAtIndex(0)); result.SetStatus (eReturnStatusFailed); return false; } process->GetThreadList().SetSelectedThreadByID(new_thread->GetID()); result.SetStatus (eReturnStatusSuccessFinishNoResult); const uint32_t start_frame = 0; const uint32_t num_frames = 1; const uint32_t num_frames_with_source = 1; new_thread->GetStatus (result.GetOutputStream(), start_frame, num_frames, num_frames_with_source); return result.Succeeded(); } }; //------------------------------------------------------------------------- // CommandObjectThreadList //------------------------------------------------------------------------- class CommandObjectThreadList : public CommandObject { public: CommandObjectThreadList (CommandInterpreter &interpreter): CommandObject (interpreter, "thread list", "Show a summary of all current threads in a process.", "thread list", eFlagProcessMustBeLaunched | eFlagProcessMustBePaused) { } ~CommandObjectThreadList() { } bool Execute ( Args& command, CommandReturnObject &result ) { Stream &strm = result.GetOutputStream(); result.SetStatus (eReturnStatusSuccessFinishNoResult); ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); Process *process = exe_ctx.GetProcessPtr(); if (process) { const bool only_threads_with_stop_reason = false; const uint32_t start_frame = 0; const uint32_t num_frames = 0; const uint32_t num_frames_with_source = 0; process->GetStatus(strm); process->GetThreadStatus (strm, only_threads_with_stop_reason, start_frame, num_frames, num_frames_with_source); } else { result.AppendError ("no current location or status available"); result.SetStatus (eReturnStatusFailed); } return result.Succeeded(); } }; //------------------------------------------------------------------------- // CommandObjectMultiwordThread //------------------------------------------------------------------------- CommandObjectMultiwordThread::CommandObjectMultiwordThread (CommandInterpreter &interpreter) : CommandObjectMultiword (interpreter, "thread", "A set of commands for operating on one or more threads within a running process.", "thread []") { LoadSubCommand ("backtrace", CommandObjectSP (new CommandObjectThreadBacktrace (interpreter))); LoadSubCommand ("continue", CommandObjectSP (new CommandObjectThreadContinue (interpreter))); LoadSubCommand ("list", CommandObjectSP (new CommandObjectThreadList (interpreter))); LoadSubCommand ("select", CommandObjectSP (new CommandObjectThreadSelect (interpreter))); LoadSubCommand ("until", CommandObjectSP (new CommandObjectThreadUntil (interpreter))); LoadSubCommand ("step-in", CommandObjectSP (new CommandObjectThreadStepWithTypeAndScope ( interpreter, "thread step-in", "Source level single step in specified thread (current thread, if none specified).", NULL, eFlagProcessMustBeLaunched | eFlagProcessMustBePaused, eStepTypeInto, eStepScopeSource))); LoadSubCommand ("step-out", CommandObjectSP (new CommandObjectThreadStepWithTypeAndScope ( interpreter, "thread step-out", "Finish executing the current function and return to its call site in specified thread (current thread, if none specified).", NULL, eFlagProcessMustBeLaunched | eFlagProcessMustBePaused, eStepTypeOut, eStepScopeSource))); LoadSubCommand ("step-over", CommandObjectSP (new CommandObjectThreadStepWithTypeAndScope ( interpreter, "thread step-over", "Source level single step in specified thread (current thread, if none specified), stepping over calls.", NULL, eFlagProcessMustBeLaunched | eFlagProcessMustBePaused, eStepTypeOver, eStepScopeSource))); LoadSubCommand ("step-inst", CommandObjectSP (new CommandObjectThreadStepWithTypeAndScope ( interpreter, "thread step-inst", "Single step one instruction in specified thread (current thread, if none specified).", NULL, eFlagProcessMustBeLaunched | eFlagProcessMustBePaused, eStepTypeTrace, eStepScopeInstruction))); LoadSubCommand ("step-inst-over", CommandObjectSP (new CommandObjectThreadStepWithTypeAndScope ( interpreter, "thread step-inst-over", "Single step one instruction in specified thread (current thread, if none specified), stepping over calls.", NULL, eFlagProcessMustBeLaunched | eFlagProcessMustBePaused, eStepTypeTraceOver, eStepScopeInstruction))); } CommandObjectMultiwordThread::~CommandObjectMultiwordThread () { }