| //===-- CommandObjectProcess.cpp ------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "CommandObjectProcess.h" |
| #include "CommandOptionsProcessLaunch.h" |
| #include "lldb/Breakpoint/Breakpoint.h" |
| #include "lldb/Breakpoint/BreakpointLocation.h" |
| #include "lldb/Breakpoint/BreakpointSite.h" |
| #include "lldb/Core/Module.h" |
| #include "lldb/Core/PluginManager.h" |
| #include "lldb/Host/OptionParser.h" |
| #include "lldb/Interpreter/CommandInterpreter.h" |
| #include "lldb/Interpreter/CommandReturnObject.h" |
| #include "lldb/Interpreter/OptionArgParser.h" |
| #include "lldb/Interpreter/Options.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" |
| #include "lldb/Utility/Args.h" |
| #include "lldb/Utility/State.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 = default; |
| |
| protected: |
| bool StopProcessIfNecessary(Process *process, StateType &state, |
| CommandReturnObject &result) { |
| state = eStateInvalid; |
| if (process) { |
| state = process->GetState(); |
| |
| if (process->IsAlive() && state != eStateConnected) { |
| std::string message; |
| if (process->GetState() == eStateAttaching) |
| message = |
| llvm::formatv("There is a pending attach, abort it and {0}?", |
| m_new_process_action); |
| else if (process->GetShouldDetach()) |
| message = llvm::formatv( |
| "There is a running process, detach from it and {0}?", |
| m_new_process_action); |
| else |
| message = |
| llvm::formatv("There is a running process, kill it and {0}?", |
| m_new_process_action); |
| |
| if (!m_interpreter.Confirm(message, true)) { |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } else { |
| if (process->GetShouldDetach()) { |
| bool keep_stopped = false; |
| Status detach_error(process->Detach(keep_stopped)); |
| if (detach_error.Success()) { |
| result.SetStatus(eReturnStatusSuccessFinishResult); |
| process = nullptr; |
| } else { |
| result.AppendErrorWithFormat( |
| "Failed to detach from process: %s\n", |
| detach_error.AsCString()); |
| result.SetStatus(eReturnStatusFailed); |
| } |
| } else { |
| Status destroy_error(process->Destroy(false)); |
| if (destroy_error.Success()) { |
| result.SetStatus(eReturnStatusSuccessFinishResult); |
| process = nullptr; |
| } 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.", nullptr, |
| eCommandRequiresTarget, "restart"), |
| m_options() { |
| 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 = default; |
| |
| void |
| HandleArgumentCompletion(CompletionRequest &request, |
| OptionElementVector &opt_element_vector) override { |
| |
| CommandCompletions::InvokeCommonCompletionCallbacks( |
| GetCommandInterpreter(), CommandCompletions::eDiskFileCompletion, |
| request, nullptr); |
| } |
| |
| 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 = GetDebugger(); |
| Target *target = debugger.GetSelectedTarget().get(); |
| // If our listener is nullptr, users aren't allows to launch |
| ModuleSP exe_module_sp = target->GetExecutableModule(); |
| |
| if (exe_module_sp == nullptr) { |
| 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; |
| |
| llvm::StringRef 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->GetInheritTCC()) |
| m_options.launch_info.GetFlags().Set(eLaunchFlagInheritTCCFromParent); |
| |
| if (target->GetDetachOnError()) |
| m_options.launch_info.GetFlags().Set(eLaunchFlagDetachOnError); |
| |
| if (target->GetDisableSTDIO()) |
| m_options.launch_info.GetFlags().Set(eLaunchFlagDisableSTDIO); |
| |
| // Merge the launch info environment with the target environment. |
| Environment target_env = target->GetEnvironment(); |
| m_options.launch_info.GetEnvironment().insert(target_env.begin(), |
| target_env.end()); |
| |
| if (!target_settings_argv0.empty()) { |
| 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; |
| Status 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, std::chrono::seconds(2)); |
| |
| llvm::StringRef data = stream.GetString(); |
| if (!data.empty()) |
| result.AppendMessage(data); |
| 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(); |
| } |
| |
| CommandOptionsProcessLaunch m_options; |
| }; |
| |
| #define LLDB_OPTIONS_process_attach |
| #include "CommandOptions.inc" |
| |
| #pragma mark CommandObjectProcessAttach |
| class CommandObjectProcessAttach : public CommandObjectProcessLaunchOrAttach { |
| public: |
| class CommandOptions : public Options { |
| public: |
| CommandOptions() : Options() { |
| // Keep default values of all options in one place: OptionParsingStarting |
| // () |
| OptionParsingStarting(nullptr); |
| } |
| |
| ~CommandOptions() override = default; |
| |
| Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, |
| ExecutionContext *execution_context) override { |
| Status error; |
| const int short_option = m_getopt_table[option_idx].val; |
| switch (short_option) { |
| case 'c': |
| attach_info.SetContinueOnceAttached(true); |
| break; |
| |
| case 'p': { |
| lldb::pid_t pid; |
| if (option_arg.getAsInteger(0, pid)) { |
| error.SetErrorStringWithFormat("invalid process ID '%s'", |
| option_arg.str().c_str()); |
| } else { |
| attach_info.SetProcessID(pid); |
| } |
| } break; |
| |
| case 'P': |
| attach_info.SetProcessPluginName(option_arg); |
| break; |
| |
| case 'n': |
| attach_info.GetExecutableFile().SetFile(option_arg, |
| FileSpec::Style::native); |
| break; |
| |
| case 'w': |
| attach_info.SetWaitForLaunch(true); |
| break; |
| |
| case 'i': |
| attach_info.SetIgnoreExisting(false); |
| break; |
| |
| default: |
| llvm_unreachable("Unimplemented option"); |
| } |
| return error; |
| } |
| |
| void OptionParsingStarting(ExecutionContext *execution_context) override { |
| attach_info.Clear(); |
| } |
| |
| llvm::ArrayRef<OptionDefinition> GetDefinitions() override { |
| return llvm::makeArrayRef(g_process_attach_options); |
| } |
| |
| ProcessAttachInfo attach_info; |
| }; |
| |
| CommandObjectProcessAttach(CommandInterpreter &interpreter) |
| : CommandObjectProcessLaunchOrAttach( |
| interpreter, "process attach", "Attach to a process.", |
| "process attach <cmd-options>", 0, "attach"), |
| m_options() {} |
| |
| ~CommandObjectProcessAttach() override = default; |
| |
| Options *GetOptions() override { return &m_options; } |
| |
| protected: |
| bool DoExecute(Args &command, CommandReturnObject &result) override { |
| PlatformSP platform_sp( |
| GetDebugger().GetPlatformList().GetSelectedPlatform()); |
| |
| Target *target = 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 == nullptr) { |
| // If there isn't a current target create one. |
| TargetSP new_target_sp; |
| Status error; |
| |
| error = GetDebugger().GetTargetList().CreateTarget( |
| GetDebugger(), "", "", eLoadDependentsNo, |
| nullptr, // No platform options |
| new_target_sp); |
| target = new_target_sp.get(); |
| if (target == nullptr || error.Fail()) { |
| result.AppendError(error.AsCString("Error creating target")); |
| return false; |
| } |
| } |
| |
| // 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; |
| } |
| |
| StreamString stream; |
| const auto error = target->Attach(m_options.attach_info, &stream); |
| if (error.Success()) { |
| ProcessSP process_sp(target->GetProcessSP()); |
| if (process_sp) { |
| result.AppendMessage(stream.GetString()); |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| result.SetDidChangeProcessState(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; |
| }; |
| |
| // CommandObjectProcessContinue |
| |
| #define LLDB_OPTIONS_process_continue |
| #include "CommandOptions.inc" |
| |
| #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() {} |
| |
| ~CommandObjectProcessContinue() override = default; |
| |
| protected: |
| class CommandOptions : public Options { |
| public: |
| CommandOptions() : Options() { |
| // Keep default values of all options in one place: OptionParsingStarting |
| // () |
| OptionParsingStarting(nullptr); |
| } |
| |
| ~CommandOptions() override = default; |
| |
| Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, |
| ExecutionContext *execution_context) override { |
| Status error; |
| const int short_option = m_getopt_table[option_idx].val; |
| switch (short_option) { |
| case 'i': |
| if (option_arg.getAsInteger(0, m_ignore)) |
| error.SetErrorStringWithFormat( |
| "invalid value for ignore option: \"%s\", should be a number.", |
| option_arg.str().c_str()); |
| break; |
| |
| default: |
| llvm_unreachable("Unimplemented option"); |
| } |
| return error; |
| } |
| |
| void OptionParsingStarting(ExecutionContext *execution_context) override { |
| m_ignore = 0; |
| } |
| |
| llvm::ArrayRef<OptionDefinition> GetDefinitions() override { |
| return llvm::makeArrayRef(g_process_continue_options); |
| } |
| |
| 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(GetDefaultThread()->shared_from_this()); |
| 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: |
| std::lock_guard<std::recursive_mutex> guard( |
| 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; |
| Status 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, std::chrono::seconds(2)); |
| |
| 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 |
| result.AppendMessage(stream.GetString()); |
| |
| 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; |
| }; |
| |
| // CommandObjectProcessDetach |
| #define LLDB_OPTIONS_process_detach |
| #include "CommandOptions.inc" |
| |
| #pragma mark CommandObjectProcessDetach |
| |
| class CommandObjectProcessDetach : public CommandObjectParsed { |
| public: |
| class CommandOptions : public Options { |
| public: |
| CommandOptions() : Options() { OptionParsingStarting(nullptr); } |
| |
| ~CommandOptions() override = default; |
| |
| Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, |
| ExecutionContext *execution_context) override { |
| Status error; |
| const int short_option = m_getopt_table[option_idx].val; |
| |
| switch (short_option) { |
| case 's': |
| bool tmp_result; |
| bool success; |
| tmp_result = OptionArgParser::ToBoolean(option_arg, false, &success); |
| if (!success) |
| error.SetErrorStringWithFormat("invalid boolean option: \"%s\"", |
| option_arg.str().c_str()); |
| else { |
| if (tmp_result) |
| m_keep_stopped = eLazyBoolYes; |
| else |
| m_keep_stopped = eLazyBoolNo; |
| } |
| break; |
| default: |
| llvm_unreachable("Unimplemented option"); |
| } |
| return error; |
| } |
| |
| void OptionParsingStarting(ExecutionContext *execution_context) override { |
| m_keep_stopped = eLazyBoolCalculate; |
| } |
| |
| llvm::ArrayRef<OptionDefinition> GetDefinitions() override { |
| return llvm::makeArrayRef(g_process_detach_options); |
| } |
| |
| // Instance variables to hold the values for command options. |
| LazyBool m_keep_stopped; |
| }; |
| |
| CommandObjectProcessDetach(CommandInterpreter &interpreter) |
| : CommandObjectParsed(interpreter, "process detach", |
| "Detach from the current target process.", |
| "process detach", |
| eCommandRequiresProcess | eCommandTryTargetAPILock | |
| eCommandProcessMustBeLaunched), |
| m_options() {} |
| |
| ~CommandObjectProcessDetach() override = default; |
| |
| 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: |
| keep_stopped = process->GetDetachKeepsStopped(); |
| } else if (m_options.m_keep_stopped == eLazyBoolYes) |
| keep_stopped = true; |
| else |
| keep_stopped = false; |
| |
| Status 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; |
| }; |
| |
| // CommandObjectProcessConnect |
| #define LLDB_OPTIONS_process_connect |
| #include "CommandOptions.inc" |
| |
| #pragma mark CommandObjectProcessConnect |
| |
| class CommandObjectProcessConnect : public CommandObjectParsed { |
| public: |
| class CommandOptions : public Options { |
| public: |
| CommandOptions() : Options() { |
| // Keep default values of all options in one place: OptionParsingStarting |
| // () |
| OptionParsingStarting(nullptr); |
| } |
| |
| ~CommandOptions() override = default; |
| |
| Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, |
| ExecutionContext *execution_context) override { |
| Status error; |
| const int short_option = m_getopt_table[option_idx].val; |
| |
| switch (short_option) { |
| case 'p': |
| plugin_name.assign(std::string(option_arg)); |
| break; |
| |
| default: |
| llvm_unreachable("Unimplemented option"); |
| } |
| return error; |
| } |
| |
| void OptionParsingStarting(ExecutionContext *execution_context) override { |
| plugin_name.clear(); |
| } |
| |
| llvm::ArrayRef<OptionDefinition> GetDefinitions() override { |
| return llvm::makeArrayRef(g_process_connect_options); |
| } |
| |
| // 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() {} |
| |
| ~CommandObjectProcessConnect() override = default; |
| |
| 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(); |
| |
| Status error; |
| Debugger &debugger = GetDebugger(); |
| PlatformSP platform_sp = m_interpreter.GetPlatform(true); |
| ProcessSP process_sp = |
| debugger.GetAsyncExecution() |
| ? platform_sp->ConnectProcess( |
| command.GetArgumentAtIndex(0), plugin_name, debugger, |
| debugger.GetSelectedTarget().get(), error) |
| : platform_sp->ConnectProcessSynchronous( |
| command.GetArgumentAtIndex(0), plugin_name, debugger, |
| result.GetOutputStream(), 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; |
| }; |
| |
| // CommandObjectProcessPlugin |
| #pragma mark CommandObjectProcessPlugin |
| |
| class CommandObjectProcessPlugin : public CommandObjectProxy { |
| public: |
| CommandObjectProcessPlugin(CommandInterpreter &interpreter) |
| : CommandObjectProxy( |
| interpreter, "process plugin", |
| "Send a custom command to the current target process plug-in.", |
| "process plugin <args>", 0) {} |
| |
| ~CommandObjectProcessPlugin() override = default; |
| |
| CommandObject *GetProxyCommandObject() override { |
| Process *process = m_interpreter.GetExecutionContext().GetProcessPtr(); |
| if (process) |
| return process->GetPluginCommandObject(); |
| return nullptr; |
| } |
| }; |
| |
| // CommandObjectProcessLoad |
| #define LLDB_OPTIONS_process_load |
| #include "CommandOptions.inc" |
| |
| #pragma mark CommandObjectProcessLoad |
| |
| class CommandObjectProcessLoad : public CommandObjectParsed { |
| public: |
| class CommandOptions : public Options { |
| public: |
| CommandOptions() : Options() { |
| // Keep default values of all options in one place: OptionParsingStarting |
| // () |
| OptionParsingStarting(nullptr); |
| } |
| |
| ~CommandOptions() override = default; |
| |
| Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, |
| ExecutionContext *execution_context) override { |
| Status error; |
| const int short_option = m_getopt_table[option_idx].val; |
| switch (short_option) { |
| case 'i': |
| do_install = true; |
| if (!option_arg.empty()) |
| install_path.SetFile(option_arg, FileSpec::Style::native); |
| break; |
| default: |
| llvm_unreachable("Unimplemented option"); |
| } |
| return error; |
| } |
| |
| void OptionParsingStarting(ExecutionContext *execution_context) override { |
| do_install = false; |
| install_path.Clear(); |
| } |
| |
| llvm::ArrayRef<OptionDefinition> GetDefinitions() override { |
| return llvm::makeArrayRef(g_process_load_options); |
| } |
| |
| // 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() {} |
| |
| ~CommandObjectProcessLoad() override = default; |
| |
| void |
| HandleArgumentCompletion(CompletionRequest &request, |
| OptionElementVector &opt_element_vector) override { |
| if (!m_exe_ctx.HasProcessScope()) |
| return; |
| |
| CommandCompletions::InvokeCommonCompletionCallbacks( |
| GetCommandInterpreter(), CommandCompletions::eDiskFileCompletion, |
| request, nullptr); |
| } |
| |
| Options *GetOptions() override { return &m_options; } |
| |
| protected: |
| bool DoExecute(Args &command, CommandReturnObject &result) override { |
| Process *process = m_exe_ctx.GetProcessPtr(); |
| |
| for (auto &entry : command.entries()) { |
| Status error; |
| PlatformSP platform = process->GetTarget().GetPlatform(); |
| llvm::StringRef image_path = entry.ref(); |
| uint32_t image_token = LLDB_INVALID_IMAGE_TOKEN; |
| |
| if (!m_options.do_install) { |
| FileSpec image_spec(image_path); |
| 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); |
| FileSystem::Instance().Resolve(image_spec); |
| 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); |
| FileSystem::Instance().Resolve(image_spec); |
| 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.str().c_str(), |
| image_token); |
| result.SetStatus(eReturnStatusSuccessFinishResult); |
| } else { |
| result.AppendErrorWithFormat("failed to load '%s': %s", |
| image_path.str().c_str(), |
| error.AsCString()); |
| result.SetStatus(eReturnStatusFailed); |
| } |
| } |
| return result.Succeeded(); |
| } |
| |
| CommandOptions m_options; |
| }; |
| |
| // 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 = default; |
| |
| void |
| HandleArgumentCompletion(CompletionRequest &request, |
| OptionElementVector &opt_element_vector) override { |
| |
| if (request.GetCursorIndex() || !m_exe_ctx.HasProcessScope()) |
| return; |
| |
| Process *process = m_exe_ctx.GetProcessPtr(); |
| |
| const std::vector<lldb::addr_t> &tokens = process->GetImageTokens(); |
| const size_t token_num = tokens.size(); |
| for (size_t i = 0; i < token_num; ++i) { |
| if (tokens[i] == LLDB_INVALID_IMAGE_TOKEN) |
| continue; |
| request.TryCompleteCurrentArg(std::to_string(i)); |
| } |
| } |
| |
| protected: |
| bool DoExecute(Args &command, CommandReturnObject &result) override { |
| Process *process = m_exe_ctx.GetProcessPtr(); |
| |
| for (auto &entry : command.entries()) { |
| uint32_t image_token; |
| if (entry.ref().getAsInteger(0, image_token)) { |
| result.AppendErrorWithFormat("invalid image index argument '%s'", |
| entry.ref().str().c_str()); |
| result.SetStatus(eReturnStatusFailed); |
| break; |
| } else { |
| Status 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 target process.", nullptr, |
| 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 = default; |
| |
| void |
| HandleArgumentCompletion(CompletionRequest &request, |
| OptionElementVector &opt_element_vector) override { |
| if (!m_exe_ctx.HasProcessScope() || request.GetCursorIndex() != 0) |
| return; |
| |
| UnixSignalsSP signals = m_exe_ctx.GetProcessPtr()->GetUnixSignals(); |
| int signo = signals->GetFirstSignalNumber(); |
| while (signo != LLDB_INVALID_SIGNAL_NUMBER) { |
| request.AddCompletion(signals->GetSignalAsCString(signo), ""); |
| signo = signals->GetNextSignalNumber(signo); |
| } |
| } |
| |
| 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])) { |
| if (!llvm::to_integer(signal_name, signo)) |
| signo = LLDB_INVALID_SIGNAL_NUMBER; |
| } 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 { |
| Status 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 target process.", |
| "process interrupt", |
| eCommandRequiresProcess | eCommandTryTargetAPILock | |
| eCommandProcessMustBeLaunched) {} |
| |
| ~CommandObjectProcessInterrupt() override = default; |
| |
| protected: |
| bool DoExecute(Args &command, CommandReturnObject &result) override { |
| Process *process = m_exe_ctx.GetProcessPtr(); |
| if (process == nullptr) { |
| result.AppendError("no process to halt"); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| if (command.GetArgumentCount() == 0) { |
| bool clear_thread_plans = true; |
| Status 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 target process.", |
| "process kill", |
| eCommandRequiresProcess | eCommandTryTargetAPILock | |
| eCommandProcessMustBeLaunched) {} |
| |
| ~CommandObjectProcessKill() override = default; |
| |
| protected: |
| bool DoExecute(Args &command, CommandReturnObject &result) override { |
| Process *process = m_exe_ctx.GetProcessPtr(); |
| if (process == nullptr) { |
| result.AppendError("no process to kill"); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| if (command.GetArgumentCount() == 0) { |
| Status 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 = default; |
| |
| 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)); |
| Status 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 |
| #define LLDB_OPTIONS_process_status |
| #include "CommandOptions.inc" |
| |
| class CommandObjectProcessStatus : public CommandObjectParsed { |
| public: |
| CommandObjectProcessStatus(CommandInterpreter &interpreter) |
| : CommandObjectParsed( |
| interpreter, "process status", |
| "Show status and stop location for the current target process.", |
| "process status", |
| eCommandRequiresProcess | eCommandTryTargetAPILock), |
| m_options() {} |
| |
| ~CommandObjectProcessStatus() override = default; |
| |
| Options *GetOptions() override { return &m_options; } |
| |
| class CommandOptions : public Options { |
| public: |
| CommandOptions() : Options(), m_verbose(false) {} |
| |
| ~CommandOptions() override = default; |
| |
| Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, |
| ExecutionContext *execution_context) override { |
| const int short_option = m_getopt_table[option_idx].val; |
| |
| switch (short_option) { |
| case 'v': |
| m_verbose = true; |
| break; |
| default: |
| llvm_unreachable("Unimplemented option"); |
| } |
| |
| return {}; |
| } |
| |
| void OptionParsingStarting(ExecutionContext *execution_context) override { |
| m_verbose = false; |
| } |
| |
| llvm::ArrayRef<OptionDefinition> GetDefinitions() override { |
| return llvm::makeArrayRef(g_process_status_options); |
| } |
| |
| // Instance variables to hold the values for command options. |
| bool m_verbose; |
| }; |
| |
| protected: |
| bool DoExecute(Args &command, CommandReturnObject &result) override { |
| Stream &strm = result.GetOutputStream(); |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| |
| if (command.GetArgumentCount()) { |
| result.AppendError("'process status' takes no arguments"); |
| result.SetStatus(eReturnStatusFailed); |
| return result.Succeeded(); |
| } |
| |
| // 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; |
| const bool stop_format = true; |
| process->GetStatus(strm); |
| process->GetThreadStatus(strm, only_threads_with_stop_reason, start_frame, |
| num_frames, num_frames_with_source, stop_format); |
| |
| if (m_options.m_verbose) { |
| PlatformSP platform_sp = process->GetTarget().GetPlatform(); |
| if (!platform_sp) { |
| result.AppendError("Couldn'retrieve the target's platform"); |
| result.SetStatus(eReturnStatusFailed); |
| return result.Succeeded(); |
| } |
| |
| auto expected_crash_info = |
| platform_sp->FetchExtendedCrashInformation(*process); |
| |
| if (!expected_crash_info) { |
| result.AppendError(llvm::toString(expected_crash_info.takeError())); |
| result.SetStatus(eReturnStatusFailed); |
| return result.Succeeded(); |
| } |
| |
| StructuredData::DictionarySP crash_info_sp = *expected_crash_info; |
| |
| if (crash_info_sp) { |
| strm.PutCString("Extended Crash Information:\n"); |
| crash_info_sp->Dump(strm); |
| } |
| } |
| |
| return result.Succeeded(); |
| } |
| |
| private: |
| CommandOptions m_options; |
| }; |
| |
| // CommandObjectProcessHandle |
| #define LLDB_OPTIONS_process_handle |
| #include "CommandOptions.inc" |
| |
| #pragma mark CommandObjectProcessHandle |
| |
| class CommandObjectProcessHandle : public CommandObjectParsed { |
| public: |
| class CommandOptions : public Options { |
| public: |
| CommandOptions() : Options() { OptionParsingStarting(nullptr); } |
| |
| ~CommandOptions() override = default; |
| |
| Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, |
| ExecutionContext *execution_context) override { |
| Status error; |
| const int short_option = m_getopt_table[option_idx].val; |
| |
| switch (short_option) { |
| case 's': |
| stop = std::string(option_arg); |
| break; |
| case 'n': |
| notify = std::string(option_arg); |
| break; |
| case 'p': |
| pass = std::string(option_arg); |
| break; |
| default: |
| llvm_unreachable("Unimplemented option"); |
| } |
| return error; |
| } |
| |
| void OptionParsingStarting(ExecutionContext *execution_context) override { |
| stop.clear(); |
| notify.clear(); |
| pass.clear(); |
| } |
| |
| llvm::ArrayRef<OptionDefinition> GetDefinitions() override { |
| return llvm::makeArrayRef(g_process_handle_options); |
| } |
| |
| // 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", |
| "Manage LLDB handling of OS signals for the " |
| "current target process. Defaults to showing " |
| "current policy.", |
| nullptr, eCommandRequiresTarget), |
| m_options() { |
| 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 = default; |
| |
| Options *GetOptions() override { return &m_options; } |
| |
| bool VerifyCommandOptionValue(const std::string &option, int &real_value) { |
| bool okay = true; |
| bool success = false; |
| bool tmp_value = OptionArgParser::ToBoolean(option, 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. |
| if (!llvm::to_integer(option, real_value)) |
| real_value = 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 { |
| Target *target_sp = &GetSelectedTarget(); |
| |
| 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 (const auto &arg : signal_args) { |
| int32_t signo = signals_sp->GetSignalNumberFromName(arg.c_str()); |
| 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", |
| arg.c_str()); |
| } |
| } |
| } 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; |
| }; |
| |
| // CommandObjectMultiwordProcess |
| |
| CommandObjectMultiwordProcess::CommandObjectMultiwordProcess( |
| CommandInterpreter &interpreter) |
| : CommandObjectMultiword( |
| interpreter, "process", |
| "Commands for interacting with processes on the current platform.", |
| "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() = default; |
