forked from OSchip/llvm-project
1313 lines
51 KiB
C++
1313 lines
51 KiB
C++
//===-- CommandObjectThread.cpp ---------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "CommandObjectThread.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Core/State.h"
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#include "lldb/Core/SourceManager.h"
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#include "lldb/Host/Host.h"
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Interpreter/CommandReturnObject.h"
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#include "lldb/Interpreter/Options.h"
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#include "lldb/Symbol/CompileUnit.h"
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#include "lldb/Symbol/Function.h"
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#include "lldb/Symbol/LineTable.h"
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#include "lldb/Symbol/LineEntry.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/RegisterContext.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/Thread.h"
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#include "lldb/Target/ThreadPlan.h"
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#include "lldb/Target/ThreadPlanStepInstruction.h"
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#include "lldb/Target/ThreadPlanStepOut.h"
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#include "lldb/Target/ThreadPlanStepRange.h"
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#include "lldb/Target/ThreadPlanStepInRange.h"
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using namespace lldb;
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using namespace lldb_private;
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//-------------------------------------------------------------------------
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// CommandObjectThreadBacktrace
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//-------------------------------------------------------------------------
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class CommandObjectThreadBacktrace : public CommandObjectParsed
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{
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public:
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class CommandOptions : public Options
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{
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public:
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CommandOptions (CommandInterpreter &interpreter) :
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Options(interpreter)
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{
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// Keep default values of all options in one place: OptionParsingStarting ()
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OptionParsingStarting ();
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}
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virtual
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~CommandOptions ()
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{
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}
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virtual Error
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SetOptionValue (uint32_t option_idx, const char *option_arg)
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{
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Error error;
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char short_option = (char) m_getopt_table[option_idx].val;
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switch (short_option)
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{
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case 'c':
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{
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bool success;
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int32_t input_count = Args::StringToSInt32 (option_arg, -1, 0, &success);
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if (!success)
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error.SetErrorStringWithFormat("invalid integer value for option '%c'", short_option);
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if (input_count < -1)
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m_count = UINT32_MAX;
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else
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m_count = input_count;
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}
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break;
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case 's':
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{
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bool success;
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m_start = Args::StringToUInt32 (option_arg, 0, 0, &success);
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if (!success)
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error.SetErrorStringWithFormat("invalid integer value for option '%c'", short_option);
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}
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break;
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default:
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error.SetErrorStringWithFormat("invalid short option character '%c'", short_option);
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break;
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}
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return error;
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}
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void
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OptionParsingStarting ()
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{
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m_count = UINT32_MAX;
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m_start = 0;
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}
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const OptionDefinition*
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GetDefinitions ()
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{
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return g_option_table;
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}
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// Options table: Required for subclasses of Options.
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static OptionDefinition g_option_table[];
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// Instance variables to hold the values for command options.
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uint32_t m_count;
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uint32_t m_start;
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};
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CommandObjectThreadBacktrace (CommandInterpreter &interpreter) :
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CommandObjectParsed (interpreter,
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"thread backtrace",
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"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.",
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NULL,
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eFlagProcessMustBeLaunched | eFlagProcessMustBePaused),
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m_options(interpreter)
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{
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CommandArgumentEntry arg;
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CommandArgumentData thread_idx_arg;
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// Define the first (and only) variant of this arg.
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thread_idx_arg.arg_type = eArgTypeThreadIndex;
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thread_idx_arg.arg_repetition = eArgRepeatStar;
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// There is only one variant this argument could be; put it into the argument entry.
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arg.push_back (thread_idx_arg);
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// Push the data for the first argument into the m_arguments vector.
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m_arguments.push_back (arg);
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}
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~CommandObjectThreadBacktrace()
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{
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}
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virtual Options *
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GetOptions ()
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{
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return &m_options;
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}
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protected:
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virtual bool
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DoExecute (Args& command, CommandReturnObject &result)
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{
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result.SetStatus (eReturnStatusSuccessFinishResult);
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Stream &strm = result.GetOutputStream();
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// Don't show source context when doing backtraces.
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const uint32_t num_frames_with_source = 0;
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if (command.GetArgumentCount() == 0)
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{
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ExecutionContext exe_ctx(m_interpreter.GetExecutionContext());
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Thread *thread = exe_ctx.GetThreadPtr();
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if (thread)
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{
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// Thread::GetStatus() returns the number of frames shown.
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if (thread->GetStatus (strm,
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m_options.m_start,
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m_options.m_count,
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num_frames_with_source))
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{
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result.SetStatus (eReturnStatusSuccessFinishResult);
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}
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}
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else
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{
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result.AppendError ("invalid thread");
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result.SetStatus (eReturnStatusFailed);
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}
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}
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else if (command.GetArgumentCount() == 1 && ::strcmp (command.GetArgumentAtIndex(0), "all") == 0)
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{
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Process *process = m_interpreter.GetExecutionContext().GetProcessPtr();
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Mutex::Locker locker (process->GetThreadList().GetMutex());
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uint32_t num_threads = process->GetThreadList().GetSize();
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for (uint32_t i = 0; i < num_threads; i++)
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{
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ThreadSP thread_sp = process->GetThreadList().GetThreadAtIndex(i);
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if (!thread_sp->GetStatus (strm,
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m_options.m_start,
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m_options.m_count,
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num_frames_with_source))
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{
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result.AppendErrorWithFormat ("error displaying backtrace for thread: \"0x%4.4x\"\n", i);
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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if (i < num_threads - 1)
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result.AppendMessage("");
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}
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}
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else
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{
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uint32_t num_args = command.GetArgumentCount();
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Process *process = m_interpreter.GetExecutionContext().GetProcessPtr();
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Mutex::Locker locker (process->GetThreadList().GetMutex());
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std::vector<ThreadSP> thread_sps;
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for (uint32_t i = 0; i < num_args; i++)
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{
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bool success;
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uint32_t thread_idx = Args::StringToUInt32(command.GetArgumentAtIndex(i), 0, 0, &success);
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if (!success)
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{
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result.AppendErrorWithFormat ("invalid thread specification: \"%s\"\n", command.GetArgumentAtIndex(i));
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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thread_sps.push_back(process->GetThreadList().FindThreadByIndexID(thread_idx));
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if (!thread_sps[i])
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{
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result.AppendErrorWithFormat ("no thread with index: \"%s\"\n", command.GetArgumentAtIndex(i));
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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}
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for (uint32_t i = 0; i < num_args; i++)
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{
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if (!thread_sps[i]->GetStatus (strm,
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m_options.m_start,
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m_options.m_count,
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num_frames_with_source))
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{
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result.AppendErrorWithFormat ("error displaying backtrace for thread: \"%s\"\n", command.GetArgumentAtIndex(i));
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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if (i < num_args - 1)
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result.AppendMessage("");
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}
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}
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return result.Succeeded();
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}
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CommandOptions m_options;
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};
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OptionDefinition
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CommandObjectThreadBacktrace::CommandOptions::g_option_table[] =
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{
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{ LLDB_OPT_SET_1, false, "count", 'c', required_argument, NULL, 0, eArgTypeCount, "How many frames to display (-1 for all)"},
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{ LLDB_OPT_SET_1, false, "start", 's', required_argument, NULL, 0, eArgTypeFrameIndex, "Frame in which to start the backtrace"},
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{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL }
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};
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enum StepScope
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{
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eStepScopeSource,
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eStepScopeInstruction
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};
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class CommandObjectThreadStepWithTypeAndScope : public CommandObjectParsed
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{
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public:
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class CommandOptions : public Options
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{
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public:
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CommandOptions (CommandInterpreter &interpreter) :
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Options (interpreter)
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{
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// Keep default values of all options in one place: OptionParsingStarting ()
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OptionParsingStarting ();
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}
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virtual
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~CommandOptions ()
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{
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}
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virtual Error
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SetOptionValue (uint32_t option_idx, const char *option_arg)
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{
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Error error;
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char short_option = (char) m_getopt_table[option_idx].val;
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switch (short_option)
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{
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case 'a':
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{
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bool success;
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m_avoid_no_debug = Args::StringToBoolean (option_arg, true, &success);
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if (!success)
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error.SetErrorStringWithFormat("invalid boolean value for option '%c'", short_option);
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}
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break;
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case 'm':
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{
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OptionEnumValueElement *enum_values = g_option_table[option_idx].enum_values;
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m_run_mode = (lldb::RunMode) Args::StringToOptionEnum(option_arg, enum_values, eOnlyDuringStepping, error);
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}
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break;
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case 'r':
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{
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m_avoid_regexp.clear();
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m_avoid_regexp.assign(option_arg);
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}
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break;
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default:
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error.SetErrorStringWithFormat("invalid short option character '%c'", short_option);
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break;
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}
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return error;
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}
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void
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OptionParsingStarting ()
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{
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m_avoid_no_debug = true;
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m_run_mode = eOnlyDuringStepping;
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m_avoid_regexp.clear();
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}
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const OptionDefinition*
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GetDefinitions ()
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{
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return g_option_table;
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}
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// Options table: Required for subclasses of Options.
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static OptionDefinition g_option_table[];
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// Instance variables to hold the values for command options.
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bool m_avoid_no_debug;
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RunMode m_run_mode;
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std::string m_avoid_regexp;
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};
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CommandObjectThreadStepWithTypeAndScope (CommandInterpreter &interpreter,
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const char *name,
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const char *help,
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const char *syntax,
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uint32_t flags,
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StepType step_type,
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StepScope step_scope) :
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CommandObjectParsed (interpreter, name, help, syntax, flags),
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m_step_type (step_type),
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m_step_scope (step_scope),
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m_options (interpreter)
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{
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CommandArgumentEntry arg;
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CommandArgumentData thread_id_arg;
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// Define the first (and only) variant of this arg.
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thread_id_arg.arg_type = eArgTypeThreadID;
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thread_id_arg.arg_repetition = eArgRepeatOptional;
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// There is only one variant this argument could be; put it into the argument entry.
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arg.push_back (thread_id_arg);
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// Push the data for the first argument into the m_arguments vector.
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m_arguments.push_back (arg);
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}
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virtual
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~CommandObjectThreadStepWithTypeAndScope ()
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{
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}
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virtual
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Options *
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GetOptions ()
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{
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return &m_options;
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}
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protected:
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virtual bool
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DoExecute (Args& command, CommandReturnObject &result)
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{
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Process *process = m_interpreter.GetExecutionContext().GetProcessPtr();
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bool synchronous_execution = m_interpreter.GetSynchronous();
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if (process == NULL)
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{
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result.AppendError ("need a valid process to step");
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result.SetStatus (eReturnStatusFailed);
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}
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else
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{
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const uint32_t num_threads = process->GetThreadList().GetSize();
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Thread *thread = NULL;
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if (command.GetArgumentCount() == 0)
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{
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thread = process->GetThreadList().GetSelectedThread().get();
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if (thread == NULL)
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{
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result.AppendError ("no selected thread in process");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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}
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else
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{
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const char *thread_idx_cstr = command.GetArgumentAtIndex(0);
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uint32_t step_thread_idx = Args::StringToUInt32 (thread_idx_cstr, LLDB_INVALID_INDEX32);
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if (step_thread_idx == LLDB_INVALID_INDEX32)
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{
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result.AppendErrorWithFormat ("invalid thread index '%s'.\n", thread_idx_cstr);
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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thread = process->GetThreadList().FindThreadByIndexID(step_thread_idx).get();
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if (thread == NULL)
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{
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result.AppendErrorWithFormat ("Thread index %u is out of range (valid values are 0 - %u).\n",
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step_thread_idx, num_threads);
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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}
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const bool abort_other_plans = false;
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const lldb::RunMode stop_other_threads = m_options.m_run_mode;
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// This is a bit unfortunate, but not all the commands in this command object support
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// only while stepping, so I use the bool for them.
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bool bool_stop_other_threads;
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if (m_options.m_run_mode == eAllThreads)
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bool_stop_other_threads = false;
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else
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bool_stop_other_threads = true;
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ThreadPlan *new_plan = NULL;
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if (m_step_type == eStepTypeInto)
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{
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StackFrame *frame = thread->GetStackFrameAtIndex(0).get();
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if (frame->HasDebugInformation ())
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{
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new_plan = thread->QueueThreadPlanForStepRange (abort_other_plans, m_step_type,
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frame->GetSymbolContext(eSymbolContextEverything).line_entry.range,
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frame->GetSymbolContext(eSymbolContextEverything),
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stop_other_threads,
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m_options.m_avoid_no_debug);
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if (new_plan && !m_options.m_avoid_regexp.empty())
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{
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ThreadPlanStepInRange *step_in_range_plan = static_cast<ThreadPlanStepInRange *> (new_plan);
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step_in_range_plan->SetAvoidRegexp(m_options.m_avoid_regexp.c_str());
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}
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}
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else
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new_plan = thread->QueueThreadPlanForStepSingleInstruction (false, abort_other_plans, bool_stop_other_threads);
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}
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else if (m_step_type == eStepTypeOver)
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{
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StackFrame *frame = thread->GetStackFrameAtIndex(0).get();
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if (frame->HasDebugInformation())
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new_plan = thread->QueueThreadPlanForStepRange (abort_other_plans,
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m_step_type,
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frame->GetSymbolContext(eSymbolContextEverything).line_entry.range,
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frame->GetSymbolContext(eSymbolContextEverything),
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stop_other_threads,
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false);
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else
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new_plan = thread->QueueThreadPlanForStepSingleInstruction (true,
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abort_other_plans,
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bool_stop_other_threads);
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}
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else if (m_step_type == eStepTypeTrace)
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{
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new_plan = thread->QueueThreadPlanForStepSingleInstruction (false, abort_other_plans, bool_stop_other_threads);
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}
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else if (m_step_type == eStepTypeTraceOver)
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{
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new_plan = thread->QueueThreadPlanForStepSingleInstruction (true, abort_other_plans, bool_stop_other_threads);
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}
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else if (m_step_type == eStepTypeOut)
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{
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new_plan = thread->QueueThreadPlanForStepOut (abort_other_plans,
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NULL,
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false,
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bool_stop_other_threads,
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eVoteYes,
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eVoteNoOpinion,
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thread->GetSelectedFrameIndex());
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}
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else
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{
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result.AppendError ("step type is not supported");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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// If we got a new plan, then set it to be a master plan (User level Plans should be master plans
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// so that they can be interruptible). Then resume the process.
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if (new_plan != NULL)
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{
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new_plan->SetIsMasterPlan (true);
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new_plan->SetOkayToDiscard (false);
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process->GetThreadList().SetSelectedThreadByID (thread->GetID());
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process->Resume ();
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if (synchronous_execution)
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{
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StateType state = process->WaitForProcessToStop (NULL);
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//EventSP event_sp;
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//StateType state = process->WaitForStateChangedEvents (NULL, event_sp);
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//while (! StateIsStoppedState (state))
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// {
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// state = process->WaitForStateChangedEvents (NULL, event_sp);
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// }
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process->GetThreadList().SetSelectedThreadByID (thread->GetID());
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result.SetDidChangeProcessState (true);
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result.AppendMessageWithFormat ("Process %llu %s\n", process->GetID(), StateAsCString (state));
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result.SetStatus (eReturnStatusSuccessFinishNoResult);
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}
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else
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{
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result.SetStatus (eReturnStatusSuccessContinuingNoResult);
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}
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}
|
|
else
|
|
{
|
|
result.AppendError ("Couldn't find thread plan to implement step type.");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
}
|
|
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 CommandObjectParsed
|
|
{
|
|
public:
|
|
|
|
CommandObjectThreadContinue (CommandInterpreter &interpreter) :
|
|
CommandObjectParsed (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
|
|
DoExecute (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))
|
|
{
|
|
Mutex::Locker locker (process->GetThreadList().GetMutex());
|
|
const uint32_t num_threads = process->GetThreadList().GetSize();
|
|
const size_t argc = command.GetArgumentCount();
|
|
if (argc > 0)
|
|
{
|
|
std::vector<Thread *> resume_threads;
|
|
for (uint32_t i=0; i<argc; ++i)
|
|
{
|
|
bool success;
|
|
const int base = 0;
|
|
uint32_t thread_idx = Args::StringToUInt32 (command.GetArgumentAtIndex(i), LLDB_INVALID_INDEX32, base, &success);
|
|
if (success)
|
|
{
|
|
Thread *thread = process->GetThreadList().FindThreadByIndexID(thread_idx).get();
|
|
|
|
if (thread)
|
|
{
|
|
resume_threads.push_back(thread);
|
|
}
|
|
else
|
|
{
|
|
result.AppendErrorWithFormat("invalid thread index %u.\n", thread_idx);
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
result.AppendErrorWithFormat ("invalid thread index argument: \"%s\".\n", command.GetArgumentAtIndex(i));
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (resume_threads.empty())
|
|
{
|
|
result.AppendError ("no valid thread indexes were specified");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
if (resume_threads.size() == 1)
|
|
result.AppendMessageWithFormat ("Resuming thread: ");
|
|
else
|
|
result.AppendMessageWithFormat ("Resuming threads: ");
|
|
|
|
for (uint32_t idx=0; idx<num_threads; ++idx)
|
|
{
|
|
Thread *thread = process->GetThreadList().GetThreadAtIndex(idx).get();
|
|
std::vector<Thread *>::iterator this_thread_pos = find(resume_threads.begin(), resume_threads.end(), thread);
|
|
|
|
if (this_thread_pos != resume_threads.end())
|
|
{
|
|
resume_threads.erase(this_thread_pos);
|
|
if (resume_threads.size() > 0)
|
|
result.AppendMessageWithFormat ("%u, ", thread->GetIndexID());
|
|
else
|
|
result.AppendMessageWithFormat ("%u ", thread->GetIndexID());
|
|
|
|
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 (uint32_t 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 CommandObjectParsed
|
|
{
|
|
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) :
|
|
CommandObjectParsed (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;
|
|
}
|
|
|
|
protected:
|
|
virtual bool
|
|
DoExecute (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().FindThreadByIndexID(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 = false;
|
|
|
|
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 = NULL;
|
|
|
|
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 ());
|
|
// User level plans should be master plans so they can be interrupted (e.g. by hitting a breakpoint)
|
|
// and other plans executed by the user (stepping around the breakpoint) and then a "continue"
|
|
// will resume the original plan.
|
|
new_plan->SetIsMasterPlan (true);
|
|
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();
|
|
}
|
|
|
|
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 CommandObjectParsed
|
|
{
|
|
public:
|
|
|
|
CommandObjectThreadSelect (CommandInterpreter &interpreter) :
|
|
CommandObjectParsed (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 ()
|
|
{
|
|
}
|
|
|
|
protected:
|
|
virtual bool
|
|
DoExecute (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 CommandObjectParsed
|
|
{
|
|
public:
|
|
|
|
|
|
CommandObjectThreadList (CommandInterpreter &interpreter):
|
|
CommandObjectParsed (interpreter,
|
|
"thread list",
|
|
"Show a summary of all current threads in a process.",
|
|
"thread list",
|
|
eFlagProcessMustBeLaunched | eFlagProcessMustBePaused)
|
|
{
|
|
}
|
|
|
|
~CommandObjectThreadList()
|
|
{
|
|
}
|
|
|
|
protected:
|
|
bool
|
|
DoExecute (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 ()
|
|
{
|
|
}
|
|
|
|
|