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Diffstat (limited to 'contrib/llvm/tools/lldb/source/Commands/CommandObjectProcess.cpp')
| -rw-r--r-- | contrib/llvm/tools/lldb/source/Commands/CommandObjectProcess.cpp | 1983 |
1 files changed, 1983 insertions, 0 deletions
diff --git a/contrib/llvm/tools/lldb/source/Commands/CommandObjectProcess.cpp b/contrib/llvm/tools/lldb/source/Commands/CommandObjectProcess.cpp new file mode 100644 index 0000000..a85ea17 --- /dev/null +++ b/contrib/llvm/tools/lldb/source/Commands/CommandObjectProcess.cpp @@ -0,0 +1,1983 @@ +//===-- CommandObjectProcess.cpp --------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "CommandObjectProcess.h" + +// C Includes +// C++ Includes +// Other libraries and framework includes +// Project includes +#include "lldb/Breakpoint/Breakpoint.h" +#include "lldb/Breakpoint/BreakpointLocation.h" +#include "lldb/Breakpoint/BreakpointSite.h" +#include "lldb/Core/State.h" +#include "lldb/Core/Module.h" +#include "lldb/Core/PluginManager.h" +#include "lldb/Host/Host.h" +#include "lldb/Host/StringConvert.h" +#include "lldb/Interpreter/Args.h" +#include "lldb/Interpreter/Options.h" +#include "lldb/Interpreter/CommandInterpreter.h" +#include "lldb/Interpreter/CommandReturnObject.h" +#include "lldb/Target/Platform.h" +#include "lldb/Target/Process.h" +#include "lldb/Target/StopInfo.h" +#include "lldb/Target/Target.h" +#include "lldb/Target/Thread.h" +#include "lldb/Target/UnixSignals.h" + +using namespace lldb; +using namespace lldb_private; + +class CommandObjectProcessLaunchOrAttach : public CommandObjectParsed +{ +public: + CommandObjectProcessLaunchOrAttach (CommandInterpreter &interpreter, + const char *name, + const char *help, + const char *syntax, + uint32_t flags, + const char *new_process_action) : + CommandObjectParsed (interpreter, name, help, syntax, flags), + m_new_process_action (new_process_action) {} + + ~CommandObjectProcessLaunchOrAttach () override {} +protected: + bool + StopProcessIfNecessary (Process *process, StateType &state, CommandReturnObject &result) + { + state = eStateInvalid; + if (process) + { + state = process->GetState(); + + if (process->IsAlive() && state != eStateConnected) + { + char message[1024]; + if (process->GetState() == eStateAttaching) + ::snprintf (message, sizeof(message), "There is a pending attach, abort it and %s?", m_new_process_action.c_str()); + else if (process->GetShouldDetach()) + ::snprintf (message, sizeof(message), "There is a running process, detach from it and %s?", m_new_process_action.c_str()); + else + ::snprintf (message, sizeof(message), "There is a running process, kill it and %s?", m_new_process_action.c_str()); + + if (!m_interpreter.Confirm (message, true)) + { + result.SetStatus (eReturnStatusFailed); + return false; + } + else + { + if (process->GetShouldDetach()) + { + bool keep_stopped = false; + Error detach_error (process->Detach(keep_stopped)); + if (detach_error.Success()) + { + result.SetStatus (eReturnStatusSuccessFinishResult); + process = NULL; + } + else + { + result.AppendErrorWithFormat ("Failed to detach from process: %s\n", detach_error.AsCString()); + result.SetStatus (eReturnStatusFailed); + } + } + else + { + Error destroy_error (process->Destroy(false)); + if (destroy_error.Success()) + { + result.SetStatus (eReturnStatusSuccessFinishResult); + process = NULL; + } + else + { + result.AppendErrorWithFormat ("Failed to kill process: %s\n", destroy_error.AsCString()); + result.SetStatus (eReturnStatusFailed); + } + } + } + } + } + return result.Succeeded(); + } + std::string m_new_process_action; +}; +//------------------------------------------------------------------------- +// CommandObjectProcessLaunch +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessLaunch +class CommandObjectProcessLaunch : public CommandObjectProcessLaunchOrAttach +{ +public: + + CommandObjectProcessLaunch (CommandInterpreter &interpreter) : + CommandObjectProcessLaunchOrAttach (interpreter, + "process launch", + "Launch the executable in the debugger.", + NULL, + eCommandRequiresTarget, + "restart"), + m_options (interpreter) + { + CommandArgumentEntry arg; + CommandArgumentData run_args_arg; + + // Define the first (and only) variant of this arg. + run_args_arg.arg_type = eArgTypeRunArgs; + run_args_arg.arg_repetition = eArgRepeatOptional; + + // There is only one variant this argument could be; put it into the argument entry. + arg.push_back (run_args_arg); + + // Push the data for the first argument into the m_arguments vector. + m_arguments.push_back (arg); + } + + + ~CommandObjectProcessLaunch () override + { + } + + int + HandleArgumentCompletion (Args &input, + int &cursor_index, + int &cursor_char_position, + OptionElementVector &opt_element_vector, + int match_start_point, + int max_return_elements, + bool &word_complete, + StringList &matches) override + { + std::string completion_str (input.GetArgumentAtIndex(cursor_index)); + completion_str.erase (cursor_char_position); + + CommandCompletions::InvokeCommonCompletionCallbacks (m_interpreter, + CommandCompletions::eDiskFileCompletion, + completion_str.c_str(), + match_start_point, + max_return_elements, + NULL, + word_complete, + matches); + return matches.GetSize(); + } + + Options * + GetOptions () override + { + return &m_options; + } + + const char * + GetRepeatCommand (Args ¤t_command_args, uint32_t index) override + { + // No repeat for "process launch"... + return ""; + } + +protected: + bool + DoExecute (Args& launch_args, CommandReturnObject &result) override + { + Debugger &debugger = m_interpreter.GetDebugger(); + Target *target = debugger.GetSelectedTarget().get(); + // If our listener is NULL, users aren't allows to launch + ModuleSP exe_module_sp = target->GetExecutableModule(); + + if (exe_module_sp == NULL) + { + result.AppendError ("no file in target, create a debug target using the 'target create' command"); + result.SetStatus (eReturnStatusFailed); + return false; + } + + StateType state = eStateInvalid; + + if (!StopProcessIfNecessary(m_exe_ctx.GetProcessPtr(), state, result)) + return false; + + const char *target_settings_argv0 = target->GetArg0(); + + // Determine whether we will disable ASLR or leave it in the default state (i.e. enabled if the platform supports it). + // First check if the process launch options explicitly turn on/off disabling ASLR. If so, use that setting; + // otherwise, use the 'settings target.disable-aslr' setting. + bool disable_aslr = false; + if (m_options.disable_aslr != eLazyBoolCalculate) + { + // The user specified an explicit setting on the process launch line. Use it. + disable_aslr = (m_options.disable_aslr == eLazyBoolYes); + } + else + { + // The user did not explicitly specify whether to disable ASLR. Fall back to the target.disable-aslr setting. + disable_aslr = target->GetDisableASLR (); + } + + if (disable_aslr) + m_options.launch_info.GetFlags().Set (eLaunchFlagDisableASLR); + else + m_options.launch_info.GetFlags().Clear (eLaunchFlagDisableASLR); + + if (target->GetDetachOnError()) + m_options.launch_info.GetFlags().Set (eLaunchFlagDetachOnError); + + if (target->GetDisableSTDIO()) + m_options.launch_info.GetFlags().Set (eLaunchFlagDisableSTDIO); + + Args environment; + target->GetEnvironmentAsArgs (environment); + if (environment.GetArgumentCount() > 0) + m_options.launch_info.GetEnvironmentEntries ().AppendArguments (environment); + + if (target_settings_argv0) + { + m_options.launch_info.GetArguments().AppendArgument (target_settings_argv0); + m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), false); + } + else + { + m_options.launch_info.SetExecutableFile(exe_module_sp->GetPlatformFileSpec(), true); + } + + if (launch_args.GetArgumentCount() == 0) + { + m_options.launch_info.GetArguments().AppendArguments (target->GetProcessLaunchInfo().GetArguments()); + } + else + { + m_options.launch_info.GetArguments().AppendArguments (launch_args); + // Save the arguments for subsequent runs in the current target. + target->SetRunArguments (launch_args); + } + + StreamString stream; + Error error = target->Launch(m_options.launch_info, &stream); + + if (error.Success()) + { + ProcessSP process_sp (target->GetProcessSP()); + if (process_sp) + { + // There is a race condition where this thread will return up the call stack to the main command + // handler and show an (lldb) prompt before HandlePrivateEvent (from PrivateStateThread) has + // a chance to call PushProcessIOHandler(). + process_sp->SyncIOHandler (0, 2000); + + const char *data = stream.GetData(); + if (data && strlen(data) > 0) + result.AppendMessage(stream.GetData()); + const char *archname = exe_module_sp->GetArchitecture().GetArchitectureName(); + result.AppendMessageWithFormat ("Process %" PRIu64 " launched: '%s' (%s)\n", process_sp->GetID(), exe_module_sp->GetFileSpec().GetPath().c_str(), archname); + result.SetStatus (eReturnStatusSuccessFinishResult); + result.SetDidChangeProcessState (true); + } + else + { + result.AppendError("no error returned from Target::Launch, and target has no process"); + result.SetStatus (eReturnStatusFailed); + } + } + else + { + result.AppendError(error.AsCString()); + result.SetStatus (eReturnStatusFailed); + } + return result.Succeeded(); + } + +protected: + ProcessLaunchCommandOptions m_options; +}; + + +//#define SET1 LLDB_OPT_SET_1 +//#define SET2 LLDB_OPT_SET_2 +//#define SET3 LLDB_OPT_SET_3 +// +//OptionDefinition +//CommandObjectProcessLaunch::CommandOptions::g_option_table[] = +//{ +//{ SET1 | SET2 | SET3, false, "stop-at-entry", 's', OptionParser::eNoArgument, NULL, 0, eArgTypeNone, "Stop at the entry point of the program when launching a process."}, +//{ SET1 , false, "stdin", 'i', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdin for the process to <path>."}, +//{ SET1 , false, "stdout", 'o', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stdout for the process to <path>."}, +//{ SET1 , false, "stderr", 'e', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Redirect stderr for the process to <path>."}, +//{ SET1 | SET2 | SET3, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, +//{ SET2 , false, "tty", 't', OptionParser::eOptionalArgument, NULL, 0, eArgTypeDirectoryName, "Start the process in a terminal. If <path> is specified, look for a terminal whose name contains <path>, else start the process in a new terminal."}, +//{ SET3, false, "no-stdio", 'n', OptionParser::eNoArgument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, +//{ SET1 | SET2 | SET3, false, "working-dir", 'w', OptionParser::eRequiredArgument, NULL, 0, eArgTypeDirectoryName, "Set the current working directory to <path> when running the inferior."}, +//{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } +//}; +// +//#undef SET1 +//#undef SET2 +//#undef SET3 + +//------------------------------------------------------------------------- +// CommandObjectProcessAttach +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessAttach +class CommandObjectProcessAttach : public CommandObjectProcessLaunchOrAttach +{ +public: + + class CommandOptions : public Options + { + public: + + CommandOptions (CommandInterpreter &interpreter) : + Options(interpreter) + { + // Keep default values of all options in one place: OptionParsingStarting () + OptionParsingStarting (); + } + + ~CommandOptions () override + { + } + + Error + SetOptionValue (uint32_t option_idx, const char *option_arg) override + { + Error error; + const int short_option = m_getopt_table[option_idx].val; + bool success = false; + switch (short_option) + { + case 'c': + attach_info.SetContinueOnceAttached(true); + break; + + case 'p': + { + lldb::pid_t pid = StringConvert::ToUInt32 (option_arg, LLDB_INVALID_PROCESS_ID, 0, &success); + if (!success || pid == LLDB_INVALID_PROCESS_ID) + { + error.SetErrorStringWithFormat("invalid process ID '%s'", option_arg); + } + else + { + attach_info.SetProcessID (pid); + } + } + break; + + case 'P': + attach_info.SetProcessPluginName (option_arg); + break; + + case 'n': + attach_info.GetExecutableFile().SetFile(option_arg, false); + break; + + case 'w': + attach_info.SetWaitForLaunch(true); + break; + + case 'i': + attach_info.SetIgnoreExisting(false); + break; + + default: + error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); + break; + } + return error; + } + + void + OptionParsingStarting () override + { + attach_info.Clear(); + } + + const OptionDefinition* + GetDefinitions () override + { + return g_option_table; + } + + bool + HandleOptionArgumentCompletion (Args &input, + int cursor_index, + int char_pos, + OptionElementVector &opt_element_vector, + int opt_element_index, + int match_start_point, + int max_return_elements, + bool &word_complete, + StringList &matches) override + { + int opt_arg_pos = opt_element_vector[opt_element_index].opt_arg_pos; + int opt_defs_index = opt_element_vector[opt_element_index].opt_defs_index; + + // We are only completing the name option for now... + + const OptionDefinition *opt_defs = GetDefinitions(); + if (opt_defs[opt_defs_index].short_option == 'n') + { + // Are we in the name? + + // Look to see if there is a -P argument provided, and if so use that plugin, otherwise + // use the default plugin. + + const char *partial_name = NULL; + partial_name = input.GetArgumentAtIndex(opt_arg_pos); + + PlatformSP platform_sp (m_interpreter.GetPlatform (true)); + if (platform_sp) + { + ProcessInstanceInfoList process_infos; + ProcessInstanceInfoMatch match_info; + if (partial_name) + { + match_info.GetProcessInfo().GetExecutableFile().SetFile(partial_name, false); + match_info.SetNameMatchType(eNameMatchStartsWith); + } + platform_sp->FindProcesses (match_info, process_infos); + const size_t num_matches = process_infos.GetSize(); + if (num_matches > 0) + { + for (size_t i=0; i<num_matches; ++i) + { + matches.AppendString (process_infos.GetProcessNameAtIndex(i), + process_infos.GetProcessNameLengthAtIndex(i)); + } + } + } + } + + return false; + } + + // Options table: Required for subclasses of Options. + + static OptionDefinition g_option_table[]; + + // Instance variables to hold the values for command options. + + ProcessAttachInfo attach_info; + }; + + CommandObjectProcessAttach (CommandInterpreter &interpreter) : + CommandObjectProcessLaunchOrAttach (interpreter, + "process attach", + "Attach to a process.", + "process attach <cmd-options>", + 0, + "attach"), + m_options (interpreter) + { + } + + ~CommandObjectProcessAttach () override + { + } + + Options * + GetOptions () override + { + return &m_options; + } + +protected: + bool + DoExecute (Args& command, CommandReturnObject &result) override + { + PlatformSP platform_sp (m_interpreter.GetDebugger().GetPlatformList().GetSelectedPlatform()); + + Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); + // N.B. The attach should be synchronous. It doesn't help much to get the prompt back between initiating the attach + // and the target actually stopping. So even if the interpreter is set to be asynchronous, we wait for the stop + // ourselves here. + + StateType state = eStateInvalid; + Process *process = m_exe_ctx.GetProcessPtr(); + + if (!StopProcessIfNecessary (process, state, result)) + return false; + + if (target == NULL) + { + // If there isn't a current target create one. + TargetSP new_target_sp; + Error error; + + error = m_interpreter.GetDebugger().GetTargetList().CreateTarget (m_interpreter.GetDebugger(), + NULL, + NULL, + false, + NULL, // No platform options + new_target_sp); + target = new_target_sp.get(); + if (target == NULL || error.Fail()) + { + result.AppendError(error.AsCString("Error creating target")); + return false; + } + m_interpreter.GetDebugger().GetTargetList().SetSelectedTarget(target); + } + + // Record the old executable module, we want to issue a warning if the process of attaching changed the + // current executable (like somebody said "file foo" then attached to a PID whose executable was bar.) + + ModuleSP old_exec_module_sp = target->GetExecutableModule(); + ArchSpec old_arch_spec = target->GetArchitecture(); + + if (command.GetArgumentCount()) + { + result.AppendErrorWithFormat("Invalid arguments for '%s'.\nUsage: %s\n", m_cmd_name.c_str(), m_cmd_syntax.c_str()); + result.SetStatus (eReturnStatusFailed); + return false; + } + + m_interpreter.UpdateExecutionContext(nullptr); + StreamString stream; + const auto error = target->Attach(m_options.attach_info, &stream); + if (error.Success()) + { + ProcessSP process_sp (target->GetProcessSP()); + if (process_sp) + { + if (stream.GetData()) + result.AppendMessage(stream.GetData()); + result.SetStatus (eReturnStatusSuccessFinishNoResult); + result.SetDidChangeProcessState (true); + result.SetAbnormalStopWasExpected(true); + } + else + { + result.AppendError("no error returned from Target::Attach, and target has no process"); + result.SetStatus (eReturnStatusFailed); + } + } + else + { + result.AppendErrorWithFormat ("attach failed: %s\n", error.AsCString()); + result.SetStatus (eReturnStatusFailed); + } + + if (!result.Succeeded()) + return false; + + // Okay, we're done. Last step is to warn if the executable module has changed: + char new_path[PATH_MAX]; + ModuleSP new_exec_module_sp (target->GetExecutableModule()); + if (!old_exec_module_sp) + { + // We might not have a module if we attached to a raw pid... + if (new_exec_module_sp) + { + new_exec_module_sp->GetFileSpec().GetPath(new_path, PATH_MAX); + result.AppendMessageWithFormat("Executable module set to \"%s\".\n", new_path); + } + } + else if (old_exec_module_sp->GetFileSpec() != new_exec_module_sp->GetFileSpec()) + { + char old_path[PATH_MAX]; + + old_exec_module_sp->GetFileSpec().GetPath (old_path, PATH_MAX); + new_exec_module_sp->GetFileSpec().GetPath (new_path, PATH_MAX); + + result.AppendWarningWithFormat("Executable module changed from \"%s\" to \"%s\".\n", + old_path, new_path); + } + + if (!old_arch_spec.IsValid()) + { + result.AppendMessageWithFormat ("Architecture set to: %s.\n", target->GetArchitecture().GetTriple().getTriple().c_str()); + } + else if (!old_arch_spec.IsExactMatch(target->GetArchitecture())) + { + result.AppendWarningWithFormat("Architecture changed from %s to %s.\n", + old_arch_spec.GetTriple().getTriple().c_str(), + target->GetArchitecture().GetTriple().getTriple().c_str()); + } + + // This supports the use-case scenario of immediately continuing the process once attached. + if (m_options.attach_info.GetContinueOnceAttached()) + m_interpreter.HandleCommand("process continue", eLazyBoolNo, result); + + return result.Succeeded(); + } + + CommandOptions m_options; +}; + + +OptionDefinition +CommandObjectProcessAttach::CommandOptions::g_option_table[] = +{ +{ LLDB_OPT_SET_ALL, false, "continue",'c', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Immediately continue the process once attached."}, +{ LLDB_OPT_SET_ALL, false, "plugin", 'P', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, +{ LLDB_OPT_SET_1, false, "pid", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePid, "The process ID of an existing process to attach to."}, +{ LLDB_OPT_SET_2, false, "name", 'n', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeProcessName, "The name of the process to attach to."}, +{ LLDB_OPT_SET_2, false, "include-existing", 'i', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Include existing processes when doing attach -w."}, +{ LLDB_OPT_SET_2, false, "waitfor", 'w', OptionParser::eNoArgument, NULL, NULL, 0, eArgTypeNone, "Wait for the process with <process-name> to launch."}, +{ 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } +}; + +//------------------------------------------------------------------------- +// CommandObjectProcessContinue +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessContinue + +class CommandObjectProcessContinue : public CommandObjectParsed +{ +public: + + CommandObjectProcessContinue (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process continue", + "Continue execution of all threads in the current process.", + "process continue", + eCommandRequiresProcess | + eCommandTryTargetAPILock | + eCommandProcessMustBeLaunched | + eCommandProcessMustBePaused ), + m_options(interpreter) + { + } + + + ~CommandObjectProcessContinue () override + { + } + +protected: + + class CommandOptions : public Options + { + public: + + CommandOptions (CommandInterpreter &interpreter) : + Options(interpreter) + { + // Keep default values of all options in one place: OptionParsingStarting () + OptionParsingStarting (); + } + + ~CommandOptions () override + { + } + + Error + SetOptionValue (uint32_t option_idx, const char *option_arg) override + { + Error error; + const int short_option = m_getopt_table[option_idx].val; + bool success = false; + switch (short_option) + { + case 'i': + m_ignore = StringConvert::ToUInt32 (option_arg, 0, 0, &success); + if (!success) + error.SetErrorStringWithFormat ("invalid value for ignore option: \"%s\", should be a number.", option_arg); + break; + + default: + error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); + break; + } + return error; + } + + void + OptionParsingStarting () override + { + m_ignore = 0; + } + + const OptionDefinition* + GetDefinitions () override + { + return g_option_table; + } + + // Options table: Required for subclasses of Options. + + static OptionDefinition g_option_table[]; + + uint32_t m_ignore; + }; + + bool + DoExecute (Args& command, CommandReturnObject &result) override + { + Process *process = m_exe_ctx.GetProcessPtr(); + bool synchronous_execution = m_interpreter.GetSynchronous (); + StateType state = process->GetState(); + if (state == eStateStopped) + { + if (command.GetArgumentCount() != 0) + { + result.AppendErrorWithFormat ("The '%s' command does not take any arguments.\n", m_cmd_name.c_str()); + result.SetStatus (eReturnStatusFailed); + return false; + } + + if (m_options.m_ignore > 0) + { + ThreadSP sel_thread_sp(process->GetThreadList().GetSelectedThread()); + if (sel_thread_sp) + { + StopInfoSP stop_info_sp = sel_thread_sp->GetStopInfo(); + if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonBreakpoint) + { + lldb::break_id_t bp_site_id = (lldb::break_id_t)stop_info_sp->GetValue(); + BreakpointSiteSP bp_site_sp(process->GetBreakpointSiteList().FindByID(bp_site_id)); + if (bp_site_sp) + { + const size_t num_owners = bp_site_sp->GetNumberOfOwners(); + for (size_t i = 0; i < num_owners; i++) + { + Breakpoint &bp_ref = bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint(); + if (!bp_ref.IsInternal()) + { + bp_ref.SetIgnoreCount(m_options.m_ignore); + } + } + } + } + } + } + + { // Scope for thread list mutex: + Mutex::Locker locker (process->GetThreadList().GetMutex()); + const uint32_t num_threads = process->GetThreadList().GetSize(); + + // Set the actions that the threads should each take when resuming + for (uint32_t idx=0; idx<num_threads; ++idx) + { + const bool override_suspend = false; + process->GetThreadList().GetThreadAtIndex(idx)->SetResumeState (eStateRunning, override_suspend); + } + } + + const uint32_t iohandler_id = process->GetIOHandlerID(); + + StreamString stream; + Error error; + if (synchronous_execution) + error = process->ResumeSynchronous (&stream); + else + error = process->Resume (); + + if (error.Success()) + { + // There is a race condition where this thread will return up the call stack to the main command + // handler and show an (lldb) prompt before HandlePrivateEvent (from PrivateStateThread) has + // a chance to call PushProcessIOHandler(). + process->SyncIOHandler(iohandler_id, 2000); + + result.AppendMessageWithFormat ("Process %" PRIu64 " resuming\n", process->GetID()); + if (synchronous_execution) + { + // If any state changed events had anything to say, add that to the result + if (stream.GetData()) + result.AppendMessage(stream.GetData()); + + result.SetDidChangeProcessState (true); + 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(); + } + + Options * + GetOptions () override + { + return &m_options; + } + + CommandOptions m_options; + +}; + +OptionDefinition +CommandObjectProcessContinue::CommandOptions::g_option_table[] = +{ +{ LLDB_OPT_SET_ALL, false, "ignore-count",'i', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeUnsignedInteger, + "Ignore <N> crossings of the breakpoint (if it exists) for the currently selected thread."}, +{ 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } +}; + +//------------------------------------------------------------------------- +// CommandObjectProcessDetach +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessDetach + +class CommandObjectProcessDetach : public CommandObjectParsed +{ +public: + class CommandOptions : public Options + { + public: + + CommandOptions (CommandInterpreter &interpreter) : + Options (interpreter) + { + OptionParsingStarting (); + } + + ~CommandOptions () override + { + } + + Error + SetOptionValue (uint32_t option_idx, const char *option_arg) override + { + Error error; + const int short_option = m_getopt_table[option_idx].val; + + switch (short_option) + { + case 's': + bool tmp_result; + bool success; + tmp_result = Args::StringToBoolean(option_arg, false, &success); + if (!success) + error.SetErrorStringWithFormat("invalid boolean option: \"%s\"", option_arg); + else + { + if (tmp_result) + m_keep_stopped = eLazyBoolYes; + else + m_keep_stopped = eLazyBoolNo; + } + break; + default: + error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); + break; + } + return error; + } + + void + OptionParsingStarting () override + { + m_keep_stopped = eLazyBoolCalculate; + } + + const OptionDefinition* + GetDefinitions () override + { + return g_option_table; + } + + // Options table: Required for subclasses of Options. + + static OptionDefinition g_option_table[]; + + // Instance variables to hold the values for command options. + LazyBool m_keep_stopped; + }; + + CommandObjectProcessDetach (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process detach", + "Detach from the current process being debugged.", + "process detach", + eCommandRequiresProcess | + eCommandTryTargetAPILock | + eCommandProcessMustBeLaunched), + m_options(interpreter) + { + } + + ~CommandObjectProcessDetach () override + { + } + + Options * + GetOptions () override + { + return &m_options; + } + + +protected: + bool + DoExecute (Args& command, CommandReturnObject &result) override + { + Process *process = m_exe_ctx.GetProcessPtr(); + // FIXME: This will be a Command Option: + bool keep_stopped; + if (m_options.m_keep_stopped == eLazyBoolCalculate) + { + // Check the process default: + if (process->GetDetachKeepsStopped()) + keep_stopped = true; + else + keep_stopped = false; + } + else if (m_options.m_keep_stopped == eLazyBoolYes) + keep_stopped = true; + else + keep_stopped = false; + + Error error (process->Detach(keep_stopped)); + if (error.Success()) + { + result.SetStatus (eReturnStatusSuccessFinishResult); + } + else + { + result.AppendErrorWithFormat ("Detach failed: %s\n", error.AsCString()); + result.SetStatus (eReturnStatusFailed); + return false; + } + return result.Succeeded(); + } + + CommandOptions m_options; +}; + +OptionDefinition +CommandObjectProcessDetach::CommandOptions::g_option_table[] = +{ +{ LLDB_OPT_SET_1, false, "keep-stopped", 's', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the process should be kept stopped on detach (if possible)." }, +{ 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } +}; + +//------------------------------------------------------------------------- +// CommandObjectProcessConnect +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessConnect + +class CommandObjectProcessConnect : public CommandObjectParsed +{ +public: + + class CommandOptions : public Options + { + public: + + CommandOptions (CommandInterpreter &interpreter) : + Options(interpreter) + { + // Keep default values of all options in one place: OptionParsingStarting () + OptionParsingStarting (); + } + + ~CommandOptions () override + { + } + + Error + SetOptionValue (uint32_t option_idx, const char *option_arg) override + { + Error error; + const int short_option = m_getopt_table[option_idx].val; + + switch (short_option) + { + case 'p': + plugin_name.assign (option_arg); + break; + + default: + error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); + break; + } + return error; + } + + void + OptionParsingStarting () override + { + plugin_name.clear(); + } + + const OptionDefinition* + GetDefinitions () override + { + return g_option_table; + } + + // Options table: Required for subclasses of Options. + + static OptionDefinition g_option_table[]; + + // Instance variables to hold the values for command options. + + std::string plugin_name; + }; + + CommandObjectProcessConnect (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process connect", + "Connect to a remote debug service.", + "process connect <remote-url>", + 0), + m_options (interpreter) + { + } + + ~CommandObjectProcessConnect () override + { + } + + + Options * + GetOptions () override + { + return &m_options; + } + +protected: + bool + DoExecute (Args& command, CommandReturnObject &result) override + { + if (command.GetArgumentCount() != 1) + { + result.AppendErrorWithFormat ("'%s' takes exactly one argument:\nUsage: %s\n", + m_cmd_name.c_str(), + m_cmd_syntax.c_str()); + result.SetStatus (eReturnStatusFailed); + return false; + } + + + Process *process = m_exe_ctx.GetProcessPtr(); + if (process && process->IsAlive()) + { + result.AppendErrorWithFormat ("Process %" PRIu64 " is currently being debugged, kill the process before connecting.\n", + process->GetID()); + result.SetStatus (eReturnStatusFailed); + return false; + } + + const char *plugin_name = nullptr; + if (!m_options.plugin_name.empty()) + plugin_name = m_options.plugin_name.c_str(); + + Error error; + Debugger& debugger = m_interpreter.GetDebugger(); + PlatformSP platform_sp = m_interpreter.GetPlatform(true); + ProcessSP process_sp = platform_sp->ConnectProcess(command.GetArgumentAtIndex(0), + plugin_name, + debugger, + debugger.GetSelectedTarget().get(), + error); + if (error.Fail() || process_sp == nullptr) + { + result.AppendError(error.AsCString("Error connecting to the process")); + result.SetStatus (eReturnStatusFailed); + return false; + } + return true; + } + + CommandOptions m_options; +}; + +OptionDefinition +CommandObjectProcessConnect::CommandOptions::g_option_table[] = +{ + { LLDB_OPT_SET_ALL, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, + { 0, false, NULL, 0 , 0, NULL, NULL, 0, eArgTypeNone, NULL } +}; + +//------------------------------------------------------------------------- +// CommandObjectProcessPlugin +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessPlugin + +class CommandObjectProcessPlugin : public CommandObjectProxy +{ +public: + + CommandObjectProcessPlugin (CommandInterpreter &interpreter) : + CommandObjectProxy (interpreter, + "process plugin", + "Send a custom command to the current process plug-in.", + "process plugin <args>", + 0) + { + } + + ~CommandObjectProcessPlugin () override + { + } + + CommandObject * + GetProxyCommandObject() override + { + Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); + if (process) + return process->GetPluginCommandObject(); + return NULL; + } +}; + + +//------------------------------------------------------------------------- +// CommandObjectProcessLoad +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessLoad + +class CommandObjectProcessLoad : public CommandObjectParsed +{ +public: + class CommandOptions : public Options + { + public: + CommandOptions (CommandInterpreter &interpreter) : + Options(interpreter) + { + // Keep default values of all options in one place: OptionParsingStarting () + OptionParsingStarting (); + } + + ~CommandOptions () override = default; + + Error + SetOptionValue (uint32_t option_idx, const char *option_arg) override + { + Error error; + const int short_option = m_getopt_table[option_idx].val; + switch (short_option) + { + case 'i': + do_install = true; + if (option_arg && option_arg[0]) + install_path.SetFile(option_arg, false); + break; + default: + error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); + break; + } + return error; + } + + void + OptionParsingStarting () override + { + do_install = false; + install_path.Clear(); + } + + const OptionDefinition* + GetDefinitions () override + { + return g_option_table; + } + + // Options table: Required for subclasses of Options. + static OptionDefinition g_option_table[]; + + // Instance variables to hold the values for command options. + bool do_install; + FileSpec install_path; + }; + + CommandObjectProcessLoad (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process load", + "Load a shared library into the current process.", + "process load <filename> [<filename> ...]", + eCommandRequiresProcess | + eCommandTryTargetAPILock | + eCommandProcessMustBeLaunched | + eCommandProcessMustBePaused ), + m_options (interpreter) + { + } + + ~CommandObjectProcessLoad () override = default; + + Options * + GetOptions () override + { + return &m_options; + } + +protected: + bool + DoExecute (Args& command, CommandReturnObject &result) override + { + Process *process = m_exe_ctx.GetProcessPtr(); + + const size_t argc = command.GetArgumentCount(); + for (uint32_t i=0; i<argc; ++i) + { + Error error; + PlatformSP platform = process->GetTarget().GetPlatform(); + const char *image_path = command.GetArgumentAtIndex(i); + uint32_t image_token = LLDB_INVALID_IMAGE_TOKEN; + + if (!m_options.do_install) + { + FileSpec image_spec (image_path, false); + platform->ResolveRemotePath(image_spec, image_spec); + image_token = platform->LoadImage(process, FileSpec(), image_spec, error); + } + else if (m_options.install_path) + { + FileSpec image_spec (image_path, true); + platform->ResolveRemotePath(m_options.install_path, m_options.install_path); + image_token = platform->LoadImage(process, image_spec, m_options.install_path, error); + } + else + { + FileSpec image_spec (image_path, true); + image_token = platform->LoadImage(process, image_spec, FileSpec(), error); + } + + if (image_token != LLDB_INVALID_IMAGE_TOKEN) + { + result.AppendMessageWithFormat ("Loading \"%s\"...ok\nImage %u loaded.\n", image_path, image_token); + result.SetStatus (eReturnStatusSuccessFinishResult); + } + else + { + result.AppendErrorWithFormat ("failed to load '%s': %s", image_path, error.AsCString()); + result.SetStatus (eReturnStatusFailed); + } + } + return result.Succeeded(); + } + + CommandOptions m_options; +}; + +OptionDefinition +CommandObjectProcessLoad::CommandOptions::g_option_table[] = +{ + { LLDB_OPT_SET_ALL, false, "install", 'i', OptionParser::eOptionalArgument, nullptr, nullptr, 0, eArgTypePath, "Install the shared library to the target. If specified without an argument then the library will installed in the current working directory."}, + { 0, false, nullptr, 0 , 0, nullptr, nullptr, 0, eArgTypeNone, nullptr } +}; + +//------------------------------------------------------------------------- +// CommandObjectProcessUnload +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessUnload + +class CommandObjectProcessUnload : public CommandObjectParsed +{ +public: + + CommandObjectProcessUnload (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process unload", + "Unload a shared library from the current process using the index returned by a previous call to \"process load\".", + "process unload <index>", + eCommandRequiresProcess | + eCommandTryTargetAPILock | + eCommandProcessMustBeLaunched | + eCommandProcessMustBePaused ) + { + } + + ~CommandObjectProcessUnload () override + { + } + +protected: + bool + DoExecute (Args& command, CommandReturnObject &result) override + { + Process *process = m_exe_ctx.GetProcessPtr(); + + const size_t argc = command.GetArgumentCount(); + + for (uint32_t i=0; i<argc; ++i) + { + const char *image_token_cstr = command.GetArgumentAtIndex(i); + uint32_t image_token = StringConvert::ToUInt32(image_token_cstr, LLDB_INVALID_IMAGE_TOKEN, 0); + if (image_token == LLDB_INVALID_IMAGE_TOKEN) + { + result.AppendErrorWithFormat ("invalid image index argument '%s'", image_token_cstr); + result.SetStatus (eReturnStatusFailed); + break; + } + else + { + Error error (process->GetTarget().GetPlatform()->UnloadImage(process, image_token)); + if (error.Success()) + { + result.AppendMessageWithFormat ("Unloading shared library with index %u...ok\n", image_token); + result.SetStatus (eReturnStatusSuccessFinishResult); + } + else + { + result.AppendErrorWithFormat ("failed to unload image: %s", error.AsCString()); + result.SetStatus (eReturnStatusFailed); + break; + } + } + } + return result.Succeeded(); + } +}; + +//------------------------------------------------------------------------- +// CommandObjectProcessSignal +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessSignal + +class CommandObjectProcessSignal : public CommandObjectParsed +{ +public: + + CommandObjectProcessSignal (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process signal", + "Send a UNIX signal to the current process being debugged.", + NULL, + eCommandRequiresProcess | eCommandTryTargetAPILock) + { + CommandArgumentEntry arg; + CommandArgumentData signal_arg; + + // Define the first (and only) variant of this arg. + signal_arg.arg_type = eArgTypeUnixSignal; + signal_arg.arg_repetition = eArgRepeatPlain; + + // There is only one variant this argument could be; put it into the argument entry. + arg.push_back (signal_arg); + + // Push the data for the first argument into the m_arguments vector. + m_arguments.push_back (arg); + } + + ~CommandObjectProcessSignal () override + { + } + +protected: + bool + DoExecute (Args& command, CommandReturnObject &result) override + { + Process *process = m_exe_ctx.GetProcessPtr(); + + if (command.GetArgumentCount() == 1) + { + int signo = LLDB_INVALID_SIGNAL_NUMBER; + + const char *signal_name = command.GetArgumentAtIndex(0); + if (::isxdigit (signal_name[0])) + signo = StringConvert::ToSInt32(signal_name, LLDB_INVALID_SIGNAL_NUMBER, 0); + else + signo = process->GetUnixSignals()->GetSignalNumberFromName(signal_name); + + if (signo == LLDB_INVALID_SIGNAL_NUMBER) + { + result.AppendErrorWithFormat ("Invalid signal argument '%s'.\n", command.GetArgumentAtIndex(0)); + result.SetStatus (eReturnStatusFailed); + } + else + { + Error error (process->Signal (signo)); + if (error.Success()) + { + result.SetStatus (eReturnStatusSuccessFinishResult); + } + else + { + result.AppendErrorWithFormat ("Failed to send signal %i: %s\n", signo, error.AsCString()); + result.SetStatus (eReturnStatusFailed); + } + } + } + else + { + result.AppendErrorWithFormat("'%s' takes exactly one signal number argument:\nUsage: %s\n", m_cmd_name.c_str(), + m_cmd_syntax.c_str()); + result.SetStatus (eReturnStatusFailed); + } + return result.Succeeded(); + } +}; + + +//------------------------------------------------------------------------- +// CommandObjectProcessInterrupt +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessInterrupt + +class CommandObjectProcessInterrupt : public CommandObjectParsed +{ +public: + + + CommandObjectProcessInterrupt (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process interrupt", + "Interrupt the current process being debugged.", + "process interrupt", + eCommandRequiresProcess | + eCommandTryTargetAPILock | + eCommandProcessMustBeLaunched) + { + } + + ~CommandObjectProcessInterrupt () override + { + } + +protected: + bool + DoExecute (Args& command, CommandReturnObject &result) override + { + Process *process = m_exe_ctx.GetProcessPtr(); + if (process == NULL) + { + result.AppendError ("no process to halt"); + result.SetStatus (eReturnStatusFailed); + return false; + } + + if (command.GetArgumentCount() == 0) + { + bool clear_thread_plans = true; + Error error(process->Halt (clear_thread_plans)); + if (error.Success()) + { + result.SetStatus (eReturnStatusSuccessFinishResult); + } + else + { + result.AppendErrorWithFormat ("Failed to halt process: %s\n", error.AsCString()); + result.SetStatus (eReturnStatusFailed); + } + } + else + { + result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", + m_cmd_name.c_str(), + m_cmd_syntax.c_str()); + result.SetStatus (eReturnStatusFailed); + } + return result.Succeeded(); + } +}; + +//------------------------------------------------------------------------- +// CommandObjectProcessKill +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessKill + +class CommandObjectProcessKill : public CommandObjectParsed +{ +public: + + CommandObjectProcessKill (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process kill", + "Terminate the current process being debugged.", + "process kill", + eCommandRequiresProcess | + eCommandTryTargetAPILock | + eCommandProcessMustBeLaunched) + { + } + + ~CommandObjectProcessKill () override + { + } + +protected: + bool + DoExecute (Args& command, CommandReturnObject &result) override + { + Process *process = m_exe_ctx.GetProcessPtr(); + if (process == NULL) + { + result.AppendError ("no process to kill"); + result.SetStatus (eReturnStatusFailed); + return false; + } + + if (command.GetArgumentCount() == 0) + { + Error error (process->Destroy(true)); + if (error.Success()) + { + result.SetStatus (eReturnStatusSuccessFinishResult); + } + else + { + result.AppendErrorWithFormat ("Failed to kill process: %s\n", error.AsCString()); + result.SetStatus (eReturnStatusFailed); + } + } + else + { + result.AppendErrorWithFormat("'%s' takes no arguments:\nUsage: %s\n", + m_cmd_name.c_str(), + m_cmd_syntax.c_str()); + result.SetStatus (eReturnStatusFailed); + } + return result.Succeeded(); + } +}; + +//------------------------------------------------------------------------- +// CommandObjectProcessSaveCore +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessSaveCore + +class CommandObjectProcessSaveCore : public CommandObjectParsed +{ +public: + + CommandObjectProcessSaveCore (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process save-core", + "Save the current process as a core file using an appropriate file type.", + "process save-core FILE", + eCommandRequiresProcess | + eCommandTryTargetAPILock | + eCommandProcessMustBeLaunched) + { + } + + ~CommandObjectProcessSaveCore () override + { + } + +protected: + bool + DoExecute (Args& command, + CommandReturnObject &result) override + { + ProcessSP process_sp = m_exe_ctx.GetProcessSP(); + if (process_sp) + { + if (command.GetArgumentCount() == 1) + { + FileSpec output_file(command.GetArgumentAtIndex(0), false); + Error error = PluginManager::SaveCore(process_sp, output_file); + if (error.Success()) + { + result.SetStatus (eReturnStatusSuccessFinishResult); + } + else + { + result.AppendErrorWithFormat ("Failed to save core file for process: %s\n", error.AsCString()); + result.SetStatus (eReturnStatusFailed); + } + } + else + { + result.AppendErrorWithFormat ("'%s' takes one arguments:\nUsage: %s\n", + m_cmd_name.c_str(), + m_cmd_syntax.c_str()); + result.SetStatus (eReturnStatusFailed); + } + } + else + { + result.AppendError ("invalid process"); + result.SetStatus (eReturnStatusFailed); + return false; + } + + return result.Succeeded(); + } +}; + +//------------------------------------------------------------------------- +// CommandObjectProcessStatus +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessStatus + +class CommandObjectProcessStatus : public CommandObjectParsed +{ +public: + CommandObjectProcessStatus (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process status", + "Show the current status and location of executing process.", + "process status", + eCommandRequiresProcess | eCommandTryTargetAPILock) + { + } + + ~CommandObjectProcessStatus() override + { + } + + + bool + DoExecute (Args& command, CommandReturnObject &result) override + { + Stream &strm = result.GetOutputStream(); + result.SetStatus (eReturnStatusSuccessFinishNoResult); + // No need to check "process" for validity as eCommandRequiresProcess ensures it is valid + Process *process = m_exe_ctx.GetProcessPtr(); + const bool only_threads_with_stop_reason = true; + const uint32_t start_frame = 0; + const uint32_t num_frames = 1; + const uint32_t num_frames_with_source = 1; + process->GetStatus(strm); + process->GetThreadStatus (strm, + only_threads_with_stop_reason, + start_frame, + num_frames, + num_frames_with_source); + return result.Succeeded(); + } +}; + +//------------------------------------------------------------------------- +// CommandObjectProcessHandle +//------------------------------------------------------------------------- +#pragma mark CommandObjectProcessHandle + +class CommandObjectProcessHandle : public CommandObjectParsed +{ +public: + + class CommandOptions : public Options + { + public: + + CommandOptions (CommandInterpreter &interpreter) : + Options (interpreter) + { + OptionParsingStarting (); + } + + ~CommandOptions () override + { + } + + Error + SetOptionValue (uint32_t option_idx, const char *option_arg) override + { + Error error; + const int short_option = m_getopt_table[option_idx].val; + + switch (short_option) + { + case 's': + stop = option_arg; + break; + case 'n': + notify = option_arg; + break; + case 'p': + pass = option_arg; + break; + default: + error.SetErrorStringWithFormat("invalid short option character '%c'", short_option); + break; + } + return error; + } + + void + OptionParsingStarting () override + { + stop.clear(); + notify.clear(); + pass.clear(); + } + + const OptionDefinition* + GetDefinitions () override + { + return g_option_table; + } + + // Options table: Required for subclasses of Options. + + static OptionDefinition g_option_table[]; + + // Instance variables to hold the values for command options. + + std::string stop; + std::string notify; + std::string pass; + }; + + + CommandObjectProcessHandle (CommandInterpreter &interpreter) : + CommandObjectParsed (interpreter, + "process handle", + "Show or update what the process and debugger should do with various signals received from the OS.", + NULL), + m_options (interpreter) + { + SetHelpLong ("\nIf no signals are specified, update them all. If no update " + "option is specified, list the current values."); + CommandArgumentEntry arg; + CommandArgumentData signal_arg; + + signal_arg.arg_type = eArgTypeUnixSignal; + signal_arg.arg_repetition = eArgRepeatStar; + + arg.push_back (signal_arg); + + m_arguments.push_back (arg); + } + + ~CommandObjectProcessHandle () override + { + } + + Options * + GetOptions () override + { + return &m_options; + } + + bool + VerifyCommandOptionValue (const std::string &option, int &real_value) + { + bool okay = true; + + bool success = false; + bool tmp_value = Args::StringToBoolean (option.c_str(), false, &success); + + if (success && tmp_value) + real_value = 1; + else if (success && !tmp_value) + real_value = 0; + else + { + // If the value isn't 'true' or 'false', it had better be 0 or 1. + real_value = StringConvert::ToUInt32 (option.c_str(), 3); + if (real_value != 0 && real_value != 1) + okay = false; + } + + return okay; + } + + void + PrintSignalHeader (Stream &str) + { + str.Printf ("NAME PASS STOP NOTIFY\n"); + str.Printf ("=========== ===== ===== ======\n"); + } + + void + PrintSignal(Stream &str, int32_t signo, const char *sig_name, const UnixSignalsSP &signals_sp) + { + bool stop; + bool suppress; + bool notify; + + str.Printf ("%-11s ", sig_name); + if (signals_sp->GetSignalInfo(signo, suppress, stop, notify)) + { + bool pass = !suppress; + str.Printf ("%s %s %s", + (pass ? "true " : "false"), + (stop ? "true " : "false"), + (notify ? "true " : "false")); + } + str.Printf ("\n"); + } + + void + PrintSignalInformation(Stream &str, Args &signal_args, int num_valid_signals, const UnixSignalsSP &signals_sp) + { + PrintSignalHeader (str); + + if (num_valid_signals > 0) + { + size_t num_args = signal_args.GetArgumentCount(); + for (size_t i = 0; i < num_args; ++i) + { + int32_t signo = signals_sp->GetSignalNumberFromName(signal_args.GetArgumentAtIndex(i)); + if (signo != LLDB_INVALID_SIGNAL_NUMBER) + PrintSignal (str, signo, signal_args.GetArgumentAtIndex (i), signals_sp); + } + } + else // Print info for ALL signals + { + int32_t signo = signals_sp->GetFirstSignalNumber(); + while (signo != LLDB_INVALID_SIGNAL_NUMBER) + { + PrintSignal(str, signo, signals_sp->GetSignalAsCString(signo), signals_sp); + signo = signals_sp->GetNextSignalNumber(signo); + } + } + } + +protected: + bool + DoExecute (Args &signal_args, CommandReturnObject &result) override + { + TargetSP target_sp = m_interpreter.GetDebugger().GetSelectedTarget(); + + if (!target_sp) + { + result.AppendError ("No current target;" + " cannot handle signals until you have a valid target and process.\n"); + result.SetStatus (eReturnStatusFailed); + return false; + } + + ProcessSP process_sp = target_sp->GetProcessSP(); + + if (!process_sp) + { + result.AppendError ("No current process; cannot handle signals until you have a valid process.\n"); + result.SetStatus (eReturnStatusFailed); + return false; + } + + int stop_action = -1; // -1 means leave the current setting alone + int pass_action = -1; // -1 means leave the current setting alone + int notify_action = -1; // -1 means leave the current setting alone + + if (! m_options.stop.empty() + && ! VerifyCommandOptionValue (m_options.stop, stop_action)) + { + result.AppendError ("Invalid argument for command option --stop; must be true or false.\n"); + result.SetStatus (eReturnStatusFailed); + return false; + } + + if (! m_options.notify.empty() + && ! VerifyCommandOptionValue (m_options.notify, notify_action)) + { + result.AppendError ("Invalid argument for command option --notify; must be true or false.\n"); + result.SetStatus (eReturnStatusFailed); + return false; + } + + if (! m_options.pass.empty() + && ! VerifyCommandOptionValue (m_options.pass, pass_action)) + { + result.AppendError ("Invalid argument for command option --pass; must be true or false.\n"); + result.SetStatus (eReturnStatusFailed); + return false; + } + + size_t num_args = signal_args.GetArgumentCount(); + UnixSignalsSP signals_sp = process_sp->GetUnixSignals(); + int num_signals_set = 0; + + if (num_args > 0) + { + for (size_t i = 0; i < num_args; ++i) + { + int32_t signo = signals_sp->GetSignalNumberFromName(signal_args.GetArgumentAtIndex(i)); + if (signo != LLDB_INVALID_SIGNAL_NUMBER) + { + // Casting the actions as bools here should be okay, because VerifyCommandOptionValue guarantees + // the value is either 0 or 1. + if (stop_action != -1) + signals_sp->SetShouldStop(signo, stop_action); + if (pass_action != -1) + { + bool suppress = !pass_action; + signals_sp->SetShouldSuppress(signo, suppress); + } + if (notify_action != -1) + signals_sp->SetShouldNotify(signo, notify_action); + ++num_signals_set; + } + else + { + result.AppendErrorWithFormat ("Invalid signal name '%s'\n", signal_args.GetArgumentAtIndex (i)); + } + } + } + else + { + // No signal specified, if any command options were specified, update ALL signals. + if ((notify_action != -1) || (stop_action != -1) || (pass_action != -1)) + { + if (m_interpreter.Confirm ("Do you really want to update all the signals?", false)) + { + int32_t signo = signals_sp->GetFirstSignalNumber(); + while (signo != LLDB_INVALID_SIGNAL_NUMBER) + { + if (notify_action != -1) + signals_sp->SetShouldNotify(signo, notify_action); + if (stop_action != -1) + signals_sp->SetShouldStop(signo, stop_action); + if (pass_action != -1) + { + bool suppress = !pass_action; + signals_sp->SetShouldSuppress(signo, suppress); + } + signo = signals_sp->GetNextSignalNumber(signo); + } + } + } + } + + PrintSignalInformation (result.GetOutputStream(), signal_args, num_signals_set, signals_sp); + + if (num_signals_set > 0) + result.SetStatus (eReturnStatusSuccessFinishNoResult); + else + result.SetStatus (eReturnStatusFailed); + + return result.Succeeded(); + } + + CommandOptions m_options; +}; + +OptionDefinition +CommandObjectProcessHandle::CommandOptions::g_option_table[] = +{ +{ LLDB_OPT_SET_1, false, "stop", 's', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the process should be stopped if the signal is received." }, +{ LLDB_OPT_SET_1, false, "notify", 'n', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the debugger should notify the user if the signal is received." }, +{ LLDB_OPT_SET_1, false, "pass", 'p', OptionParser::eRequiredArgument, NULL, NULL, 0, eArgTypeBoolean, "Whether or not the signal should be passed to the process." }, +{ 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL } +}; + +//------------------------------------------------------------------------- +// CommandObjectMultiwordProcess +//------------------------------------------------------------------------- + +CommandObjectMultiwordProcess::CommandObjectMultiwordProcess (CommandInterpreter &interpreter) : + CommandObjectMultiword (interpreter, + "process", + "A set of commands for operating on a process.", + "process <subcommand> [<subcommand-options>]") +{ + LoadSubCommand ("attach", CommandObjectSP (new CommandObjectProcessAttach (interpreter))); + LoadSubCommand ("launch", CommandObjectSP (new CommandObjectProcessLaunch (interpreter))); + LoadSubCommand ("continue", CommandObjectSP (new CommandObjectProcessContinue (interpreter))); + LoadSubCommand ("connect", CommandObjectSP (new CommandObjectProcessConnect (interpreter))); + LoadSubCommand ("detach", CommandObjectSP (new CommandObjectProcessDetach (interpreter))); + LoadSubCommand ("load", CommandObjectSP (new CommandObjectProcessLoad (interpreter))); + LoadSubCommand ("unload", CommandObjectSP (new CommandObjectProcessUnload (interpreter))); + LoadSubCommand ("signal", CommandObjectSP (new CommandObjectProcessSignal (interpreter))); + LoadSubCommand ("handle", CommandObjectSP (new CommandObjectProcessHandle (interpreter))); + LoadSubCommand ("status", CommandObjectSP (new CommandObjectProcessStatus (interpreter))); + LoadSubCommand ("interrupt", CommandObjectSP (new CommandObjectProcessInterrupt (interpreter))); + LoadSubCommand ("kill", CommandObjectSP (new CommandObjectProcessKill (interpreter))); + LoadSubCommand ("plugin", CommandObjectSP (new CommandObjectProcessPlugin (interpreter))); + LoadSubCommand ("save-core", CommandObjectSP (new CommandObjectProcessSaveCore (interpreter))); +} + +CommandObjectMultiwordProcess::~CommandObjectMultiwordProcess () +{ +} + |
