8651121c11
Fixed the Disassemble arguments so you can't specify start address or name in multiple ways. Fixed the command line input so you can specify the filename without "-f" even if you use other options. llvm-svn: 106020
834 lines
28 KiB
C++
834 lines
28 KiB
C++
//===-- CommandObjectProcess.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 "CommandObjectProcess.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/Args.h"
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#include "lldb/Core/Options.h"
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#include "lldb/Core/State.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/Target/Process.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/Thread.h"
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using namespace lldb;
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using namespace lldb_private;
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//-------------------------------------------------------------------------
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// CommandObjectProcessLaunch
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//-------------------------------------------------------------------------
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class CommandObjectProcessLaunch : public CommandObject
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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 () :
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Options()
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{
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// Keep default values of all options in one place: ResetOptionValues ()
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ResetOptionValues ();
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}
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~CommandOptions ()
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{
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}
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Error
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SetOptionValue (int 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 's': stop_at_entry = true; break;
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case 'e': stderr_path = option_arg; break;
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case 'i': stdin_path = option_arg; break;
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case 'o': stdout_path = option_arg; break;
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case 'p': plugin_name = option_arg; break;
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default:
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error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", 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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ResetOptionValues ()
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{
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Options::ResetOptionValues();
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stop_at_entry = false;
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stdin_path.clear();
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stdout_path.clear();
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stderr_path.clear();
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plugin_name.clear();
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}
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const lldb::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 lldb::OptionDefinition g_option_table[];
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// Instance variables to hold the values for command options.
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bool stop_at_entry;
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std::string stderr_path;
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std::string stdin_path;
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std::string stdout_path;
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std::string plugin_name;
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};
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CommandObjectProcessLaunch () :
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CommandObject ("process launch",
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"Launches the executable in the debugger.",
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"process launch [<cmd-options>] [<arguments-for-running-the-program>]")
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{
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}
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~CommandObjectProcessLaunch ()
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{
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}
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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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bool
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Execute (Args& launch_args,
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CommandContext *context,
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CommandInterpreter *interpreter,
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CommandReturnObject &result)
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{
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Target *target = context->GetTarget();
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bool synchronous_execution = interpreter->GetSynchronous ();
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// bool launched = false;
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// bool stopped_after_launch = false;
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if (target == NULL)
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{
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result.AppendError ("invalid target, set executable file using 'file' command");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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// If our listener is NULL, users aren't allows to launch
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Listener *listener = interpreter->GetListener();
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if (listener == NULL)
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{
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result.AppendError ("operation not allowed through the command interpreter");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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char filename[PATH_MAX];
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Module *exe_module = target->GetExecutableModule().get();
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exe_module->GetFileSpec().GetPath(filename, sizeof(filename));
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Process *process = context->GetExecutionContext().process;
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if (process)
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{
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if (process->IsAlive())
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{
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result.AppendErrorWithFormat ("Process %u is currently being debugged, kill the process before running again.\n",
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process->GetID());
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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 char *plugin_name;
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if (!m_options.plugin_name.empty())
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plugin_name = m_options.plugin_name.c_str();
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else
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plugin_name = NULL;
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process = target->CreateProcess (*listener, plugin_name).get();
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const Args *environment = interpreter->GetEnvironmentVariables();
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const Args *run_args = interpreter->GetProgramArguments();
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// There are two possible sources of args to be passed to the process upon launching: Those the user
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// typed at the run command (launch_args); or those the user pre-set in the run-args variable (run_args).
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// If launch_args is empty, use run_args.
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if (launch_args.GetArgumentCount() == 0)
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{
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if (run_args != NULL)
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launch_args.AppendArguments (*run_args);
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}
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else
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{
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// launch-args was not empty; use that, AND re-set run-args to contains launch-args values.
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StateVariable *run_args_var = interpreter->GetStateVariable ("run-args");
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if (run_args_var != NULL)
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{
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run_args_var->ArrayClearValues();
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run_args_var->GetArgs().AppendArguments (launch_args);
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}
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}
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if (process)
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{
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const char *archname = exe_module->GetArchitecture().AsCString();
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const char * stdin_path = NULL;
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const char * stdout_path = NULL;
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const char * stderr_path = NULL;
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if (!(m_options.stdin_path.empty() &&
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m_options.stdout_path.empty() &&
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m_options.stderr_path.empty()))
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{
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stdin_path = m_options.stdin_path.empty() ? "/dev/null" : m_options.stdin_path.c_str();
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stdout_path = m_options.stdout_path.empty() ? "/dev/null" : m_options.stdout_path.c_str();
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stderr_path = m_options.stderr_path.empty() ? "/dev/null" : m_options.stderr_path.c_str();
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}
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Error error (process->Launch (launch_args.GetConstArgumentVector(),
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environment ? environment->GetConstArgumentVector() : NULL,
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stdin_path,
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stdout_path,
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stderr_path));
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if (error.Success())
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{
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result.AppendMessageWithFormat ("Launching '%s' (%s)\n", filename, archname);
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result.SetStatus (eReturnStatusSuccessContinuingNoResult);
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if (m_options.stop_at_entry == false)
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{
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StateType state = process->WaitForProcessToStop (NULL);
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if (state == eStateStopped)
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{
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// Call continue_command.
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CommandReturnObject continue_result;
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interpreter->HandleCommand("process continue", false, continue_result);
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}
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if (synchronous_execution)
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{
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result.SetDidChangeProcessState (true);
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result.SetStatus (eReturnStatusSuccessFinishNoResult);
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}
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}
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}
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else
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{
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result.AppendErrorWithFormat ("Process launch failed: %s",
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error.AsCString());
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result.SetStatus (eReturnStatusFailed);
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}
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}
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else
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{
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result.AppendErrorWithFormat ("Process launch failed: unable to create a process object.\n");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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return result.Succeeded();
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}
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protected:
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CommandOptions m_options;
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};
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lldb::OptionDefinition
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CommandObjectProcessLaunch::CommandOptions::g_option_table[] =
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{
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{ LLDB_OPT_SET_1, false, "stop-at-entry", 's', no_argument, NULL, 0, NULL, "Stop at the entry point of the program when launching a process."},
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{ LLDB_OPT_SET_1, false, "stdin", 'i', required_argument, NULL, 0, "<path>", "Redirect stdin for the process to <path>."},
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{ LLDB_OPT_SET_1, false, "stdout", 'o', required_argument, NULL, 0, "<path>", "Redirect stdout for the process to <path>."},
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{ LLDB_OPT_SET_1, false, "stderr", 'e', required_argument, NULL, 0, "<path>", "Redirect stderr for the process to <path>."},
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{ LLDB_OPT_SET_1, false, "plugin", 'p', required_argument, NULL, 0, "<plugin>", "Name of the process plugin you want to use."},
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{ 0, false, NULL, 0, 0, NULL, 0, NULL, NULL }
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};
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//-------------------------------------------------------------------------
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// CommandObjectProcessAttach
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//-------------------------------------------------------------------------
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class CommandObjectProcessAttach : public CommandObject
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{
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public:
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CommandObjectProcessAttach () :
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CommandObject ("process attach",
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"Attaches to a process.",
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"process attach <cmd-options>")
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{
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SetHelpLong("Currently, you must set the executable file before you can attach "
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"to a process.\n");
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}
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~CommandObjectProcessAttach ()
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{
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}
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bool
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Execute (Args& command,
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CommandContext *context,
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CommandInterpreter *interpreter,
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CommandReturnObject &result)
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{
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Target *target = context->GetTarget();
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if (target == NULL)
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{
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result.AppendError ("invalid target, set executable file using 'file' command");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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// If our listener is NULL, users aren't allows to launch
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Listener *listener = interpreter->GetListener();
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if (listener == NULL)
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{
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result.AppendError ("operation not allowed through the command interpreter");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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Process *process = context->GetExecutionContext().process;
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if (process)
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{
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if (process->IsAlive())
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{
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result.AppendErrorWithFormat ("Process %u is currently being debugged, kill the process before attaching.\n", process->GetID());
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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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if (command.GetArgumentCount())
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{
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result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: \n", m_cmd_name.c_str(), m_cmd_syntax.c_str());
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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 char *plugin_name = NULL;
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if (!m_options.plugin_name.empty())
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plugin_name = m_options.plugin_name.c_str();
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process = target->CreateProcess (*listener, plugin_name).get();
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if (process)
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{
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Error error;
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int attach_pid = m_options.pid;
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if (attach_pid != LLDB_INVALID_PROCESS_ID)
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{
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error = process->Attach (attach_pid);
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if (error.Success())
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{
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result.SetStatus (eReturnStatusSuccessContinuingNoResult);
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}
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else
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{
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result.AppendErrorWithFormat ("Attaching to process %i failed: %s.\n",
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attach_pid,
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error.AsCString());
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result.SetStatus (eReturnStatusFailed);
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}
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}
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else if (!m_options.name.empty())
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{
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error = process->Attach (m_options.name.c_str(), m_options.waitfor);
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if (error.Success())
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{
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result.SetStatus (eReturnStatusSuccessContinuingNoResult);
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}
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else
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{
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if (m_options.waitfor)
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result.AppendErrorWithFormat ("Waiting for a process to launch named '%s': %s\n",
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m_options.name.c_str(),
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error.AsCString());
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else
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result.AppendErrorWithFormat ("Failed to a process named '%s': %s\n",
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m_options.name.c_str(),
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error.AsCString());
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result.SetStatus (eReturnStatusFailed);
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}
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}
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}
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}
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return result.Succeeded();
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}
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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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class CommandOptions : public Options
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{
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public:
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CommandOptions () :
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Options()
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{
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// Keep default values of all options in one place: ResetOptionValues ()
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ResetOptionValues ();
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}
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~CommandOptions ()
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{
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}
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Error
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SetOptionValue (int 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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bool success = false;
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switch (short_option)
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{
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case 'p':
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pid = Args::StringToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success);
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if (!success || pid == LLDB_INVALID_PROCESS_ID)
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{
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error.SetErrorStringWithFormat("Invalid process ID '%s'.\n", option_arg);
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}
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break;
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case 'P':
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plugin_name = option_arg;
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break;
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case 'n':
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name.assign(option_arg);
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break;
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case 'w':
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waitfor = true;
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break;
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default:
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error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", 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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ResetOptionValues ()
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{
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Options::ResetOptionValues();
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pid = LLDB_INVALID_PROCESS_ID;
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name.clear();
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waitfor = false;
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}
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const lldb::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 lldb::OptionDefinition g_option_table[];
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// Instance variables to hold the values for command options.
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lldb::pid_t pid;
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std::string plugin_name;
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std::string name;
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bool waitfor;
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};
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protected:
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CommandOptions m_options;
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};
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lldb::OptionDefinition
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CommandObjectProcessAttach::CommandOptions::g_option_table[] =
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{
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{ LLDB_OPT_SET_ALL, false, "plugin", 'P', required_argument, NULL, 0, "<plugin>", "Name of the process plugin you want to use."},
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{ LLDB_OPT_SET_1, false, "pid", 'p', required_argument, NULL, 0, "<pid>", "The process ID of an existing process to attach to."},
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{ LLDB_OPT_SET_2, true, "name", 'n', required_argument, NULL, 0, "<process-name>", "The name of the process to attach to."},
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{ LLDB_OPT_SET_2, false, "waitfor", 'w', no_argument, NULL, 0, NULL, "Wait for the the process with <process-name> to launch."},
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{ 0, false, NULL, 0, 0, NULL, 0, NULL, NULL }
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};
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//-------------------------------------------------------------------------
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// CommandObjectProcessContinue
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//-------------------------------------------------------------------------
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class CommandObjectProcessContinue : public CommandObject
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{
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public:
|
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CommandObjectProcessContinue () :
|
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CommandObject ("process continue",
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"Continues execution all threads in the current process.",
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"process continue",
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eFlagProcessMustBeLaunched | eFlagProcessMustBePaused)
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{
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}
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|
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~CommandObjectProcessContinue ()
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{
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}
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bool
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Execute (Args& command,
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CommandContext *context,
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CommandInterpreter *interpreter,
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CommandReturnObject &result)
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|
{
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Process *process = context->GetExecutionContext().process;
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bool synchronous_execution = interpreter->GetSynchronous ();
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if (process == NULL)
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{
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result.AppendError ("no process to continue");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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StateType state = process->GetState();
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if (state == eStateStopped)
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{
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if (command.GetArgumentCount() != 0)
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{
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result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str());
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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const uint32_t num_threads = process->GetThreadList().GetSize();
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// Set the actions that the threads should each take when resuming
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for (uint32_t idx=0; idx<num_threads; ++idx)
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{
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process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning);
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}
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Error error(process->Resume());
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if (error.Success())
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{
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result.AppendMessageWithFormat ("Resuming process %i\n", process->GetID());
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if (synchronous_execution)
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{
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StateType state = process->WaitForProcessToStop (NULL);
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result.SetDidChangeProcessState (true);
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result.AppendMessageWithFormat ("Process %i %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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}
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else
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{
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result.AppendErrorWithFormat("Failed to resume process: %s.\n", error.AsCString());
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result.SetStatus (eReturnStatusFailed);
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}
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}
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else
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{
|
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result.AppendErrorWithFormat ("Process cannot be continued from its current state (%s).\n",
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StateAsCString(state));
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result.SetStatus (eReturnStatusFailed);
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}
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return result.Succeeded();
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}
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};
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//-------------------------------------------------------------------------
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// CommandObjectProcessDetach
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//-------------------------------------------------------------------------
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class CommandObjectProcessDetach : public CommandObject
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{
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public:
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CommandObjectProcessDetach () :
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CommandObject ("process detach",
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"Detaches from the current process being debugged.",
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"process detach",
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eFlagProcessMustBeLaunched)
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{
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}
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~CommandObjectProcessDetach ()
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{
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}
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bool
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Execute (Args& command,
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CommandContext *context,
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CommandInterpreter *interpreter,
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CommandReturnObject &result)
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{
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Process *process = context->GetExecutionContext().process;
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if (process == NULL)
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{
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result.AppendError ("must have a valid process in order to detach");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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Error error (process->Detach());
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if (error.Success())
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{
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result.SetStatus (eReturnStatusSuccessFinishResult);
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}
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else
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{
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result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString());
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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return result.Succeeded();
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}
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};
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//-------------------------------------------------------------------------
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// CommandObjectProcessSignal
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//-------------------------------------------------------------------------
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class CommandObjectProcessSignal : public CommandObject
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{
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public:
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CommandObjectProcessSignal () :
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CommandObject ("process signal",
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"Sends a UNIX signal to the current process being debugged.",
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"process signal <unix-signal-number>")
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{
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}
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~CommandObjectProcessSignal ()
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{
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}
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bool
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Execute (Args& command,
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CommandContext *context,
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CommandInterpreter *interpreter,
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CommandReturnObject &result)
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{
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Process *process = context->GetExecutionContext().process;
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if (process == NULL)
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{
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result.AppendError ("no process to signal");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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if (command.GetArgumentCount() == 1)
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{
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int signo = Args::StringToSInt32(command.GetArgumentAtIndex(0), -1, 0);
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if (signo == -1)
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{
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result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0));
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result.SetStatus (eReturnStatusFailed);
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}
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else
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{
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Error error (process->Signal (signo));
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if (error.Success())
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{
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result.SetStatus (eReturnStatusSuccessFinishResult);
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}
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else
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{
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result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString());
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result.SetStatus (eReturnStatusFailed);
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}
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}
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}
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else
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{
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result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: \n", m_cmd_name.c_str(),
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m_cmd_syntax.c_str());
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result.SetStatus (eReturnStatusFailed);
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}
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return result.Succeeded();
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}
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};
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//-------------------------------------------------------------------------
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// CommandObjectProcessInterrupt
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//-------------------------------------------------------------------------
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class CommandObjectProcessInterrupt : public CommandObject
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{
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public:
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CommandObjectProcessInterrupt () :
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CommandObject ("process interrupt",
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"Interrupts the current process being debugged.",
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"process interrupt",
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eFlagProcessMustBeLaunched)
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{
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}
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~CommandObjectProcessInterrupt ()
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{
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}
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bool
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Execute (Args& command,
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CommandContext *context,
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CommandInterpreter *interpreter,
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CommandReturnObject &result)
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{
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Process *process = context->GetExecutionContext().process;
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if (process == NULL)
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{
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result.AppendError ("no process to halt");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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if (command.GetArgumentCount() == 0)
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{
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Error error(process->Halt ());
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if (error.Success())
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{
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result.SetStatus (eReturnStatusSuccessFinishResult);
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// Maybe we should add a "SuspendThreadPlans so we
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// can halt, and keep in place all the current thread plans.
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process->GetThreadList().DiscardThreadPlans();
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}
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else
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{
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result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString());
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result.SetStatus (eReturnStatusFailed);
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}
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}
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else
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{
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result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: \n",
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m_cmd_name.c_str(),
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m_cmd_syntax.c_str());
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result.SetStatus (eReturnStatusFailed);
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}
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return result.Succeeded();
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}
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};
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//-------------------------------------------------------------------------
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// CommandObjectProcessKill
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//-------------------------------------------------------------------------
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class CommandObjectProcessKill : public CommandObject
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{
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public:
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CommandObjectProcessKill () :
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CommandObject ("process kill",
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"Terminates the current process being debugged.",
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"process kill",
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eFlagProcessMustBeLaunched)
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{
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}
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~CommandObjectProcessKill ()
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{
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}
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bool
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Execute (Args& command,
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CommandContext *context,
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CommandInterpreter *interpreter,
|
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CommandReturnObject &result)
|
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{
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Process *process = context->GetExecutionContext().process;
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if (process == NULL)
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{
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result.AppendError ("no process to kill");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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if (command.GetArgumentCount() == 0)
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{
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Error error (process->Destroy());
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if (error.Success())
|
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{
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result.SetStatus (eReturnStatusSuccessFinishResult);
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}
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else
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{
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result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString());
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result.SetStatus (eReturnStatusFailed);
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}
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}
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else
|
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{
|
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result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: \n",
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m_cmd_name.c_str(),
|
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m_cmd_syntax.c_str());
|
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result.SetStatus (eReturnStatusFailed);
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}
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return result.Succeeded();
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}
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};
|
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//-------------------------------------------------------------------------
|
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// CommandObjectMultiwordProcess
|
|
//-------------------------------------------------------------------------
|
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|
|
CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter *interpreter) :
|
|
CommandObjectMultiword ("process",
|
|
"A set of commands for operating on a process.",
|
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"process <subcommand> [<subcommand-options>]")
|
|
{
|
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LoadSubCommand (CommandObjectSP (new CommandObjectProcessAttach ()), "attach", interpreter);
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LoadSubCommand (CommandObjectSP (new CommandObjectProcessLaunch ()), "launch", interpreter);
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LoadSubCommand (CommandObjectSP (new CommandObjectProcessContinue ()), "continue", interpreter);
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LoadSubCommand (CommandObjectSP (new CommandObjectProcessDetach ()), "detach", interpreter);
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LoadSubCommand (CommandObjectSP (new CommandObjectProcessSignal ()), "signal", interpreter);
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LoadSubCommand (CommandObjectSP (new CommandObjectProcessInterrupt ()), "interrupt", interpreter);
|
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LoadSubCommand (CommandObjectSP (new CommandObjectProcessKill ()), "kill", interpreter);
|
|
}
|
|
|
|
CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess ()
|
|
{
|
|
}
|
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|