| //===-- 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'", 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'", short_option); |
| } |
| break; |
| default: |
| error.SetErrorStringWithFormat("invalid short option character '%c'", 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<ThreadSP> 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'", 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'", 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<ThreadPlanStepInRange *> (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 %llu %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<uint32_t> resume_thread_indexes; |
| for (uint32_t i=0; i<argc; ++i) |
| { |
| idx = Args::StringToUInt32 (command.GetArgumentAtIndex(0), LLDB_INVALID_INDEX32); |
| if (idx < num_threads) |
| resume_thread_indexes.push_back(idx); |
| else |
| result.AppendWarningWithFormat("Thread index %u out of range.\n", idx); |
| } |
| |
| if (resume_thread_indexes.empty()) |
| { |
| result.AppendError ("no valid thread indexes were specified"); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| else |
| { |
| result.AppendMessage ("Resuming thread "); |
| for (idx=0; idx<num_threads; ++idx) |
| { |
| Thread *thread = process->GetThreadList().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 %llu\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; idx<num_threads; ++idx) |
| { |
| Thread *thread = process->GetThreadList().GetThreadAtIndex(idx).get(); |
| if (thread == current_thread) |
| { |
| result.AppendMessageWithFormat ("Resuming thread 0x%4.4llx in process %llu\n", thread->GetID(), process->GetID()); |
| thread->SetResumeState (eStateRunning); |
| } |
| else |
| { |
| thread->SetResumeState (eStateSuspended); |
| } |
| } |
| } |
| |
| Error error (process->Resume()); |
| if (error.Success()) |
| { |
| result.AppendMessageWithFormat ("Process %llu resuming\n", process->GetID()); |
| if (synchronous_execution) |
| { |
| state = process->WaitForProcessToStop (NULL); |
| |
| result.SetDidChangeProcessState (true); |
| result.AppendMessageWithFormat ("Process %llu %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'", 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'", 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'", 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<addr_t> 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 %llu resuming\n", process->GetID()); |
| if (synchronous_execution) |
| { |
| StateType state = process->WaitForProcessToStop (NULL); |
| |
| result.SetDidChangeProcessState (true); |
| result.AppendMessageWithFormat ("Process %llu %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 <subcommand> [<subcommand-options>]") |
| { |
| 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 function of the currently selected frame 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 () |
| { |
| } |
| |
| |
