|  | //===-- CommandObjectBreakpointCommand.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 "CommandObjectBreakpointCommand.h" | 
|  | #include "CommandObjectBreakpoint.h" | 
|  | #include "lldb/Breakpoint/Breakpoint.h" | 
|  | #include "lldb/Breakpoint/BreakpointIDList.h" | 
|  | #include "lldb/Breakpoint/BreakpointLocation.h" | 
|  | #include "lldb/Core/IOHandler.h" | 
|  | #include "lldb/Host/OptionParser.h" | 
|  | #include "lldb/Interpreter/CommandInterpreter.h" | 
|  | #include "lldb/Interpreter/CommandOptionArgumentTable.h" | 
|  | #include "lldb/Interpreter/CommandReturnObject.h" | 
|  | #include "lldb/Interpreter/OptionArgParser.h" | 
|  | #include "lldb/Interpreter/OptionGroupPythonClassWithDict.h" | 
|  | #include "lldb/Target/Target.h" | 
|  |  | 
|  | using namespace lldb; | 
|  | using namespace lldb_private; | 
|  |  | 
|  | #define LLDB_OPTIONS_breakpoint_command_add | 
|  | #include "CommandOptions.inc" | 
|  |  | 
|  | class CommandObjectBreakpointCommandAdd : public CommandObjectParsed, | 
|  | public IOHandlerDelegateMultiline { | 
|  | public: | 
|  | CommandObjectBreakpointCommandAdd(CommandInterpreter &interpreter) | 
|  | : CommandObjectParsed(interpreter, "add", | 
|  | "Add LLDB commands to a breakpoint, to be executed " | 
|  | "whenever the breakpoint is hit.  " | 
|  | "The commands added to the breakpoint replace any " | 
|  | "commands previously added to it." | 
|  | "  If no breakpoint is specified, adds the " | 
|  | "commands to the last created breakpoint.", | 
|  | nullptr), | 
|  | IOHandlerDelegateMultiline("DONE", | 
|  | IOHandlerDelegate::Completion::LLDBCommand), | 
|  | m_func_options("breakpoint command", false, 'F') { | 
|  | SetHelpLong( | 
|  | R"( | 
|  | General information about entering breakpoint commands | 
|  | ------------------------------------------------------ | 
|  |  | 
|  | )" | 
|  | "This command will prompt for commands to be executed when the specified \ | 
|  | breakpoint is hit.  Each command is typed on its own line following the '> ' \ | 
|  | prompt until 'DONE' is entered." | 
|  | R"( | 
|  |  | 
|  | )" | 
|  | "Syntactic errors may not be detected when initially entered, and many \ | 
|  | malformed commands can silently fail when executed.  If your breakpoint commands \ | 
|  | do not appear to be executing, double-check the command syntax." | 
|  | R"( | 
|  |  | 
|  | )" | 
|  | "Note: You may enter any debugger command exactly as you would at the debugger \ | 
|  | prompt.  There is no limit to the number of commands supplied, but do NOT enter \ | 
|  | more than one command per line." | 
|  | R"( | 
|  |  | 
|  | Special information about PYTHON breakpoint commands | 
|  | ---------------------------------------------------- | 
|  |  | 
|  | )" | 
|  | "You may enter either one or more lines of Python, including function \ | 
|  | definitions or calls to functions that will have been imported by the time \ | 
|  | the code executes.  Single line breakpoint commands will be interpreted 'as is' \ | 
|  | when the breakpoint is hit.  Multiple lines of Python will be wrapped in a \ | 
|  | generated function, and a call to the function will be attached to the breakpoint." | 
|  | R"( | 
|  |  | 
|  | This auto-generated function is passed in three arguments: | 
|  |  | 
|  | frame:  an lldb.SBFrame object for the frame which hit breakpoint. | 
|  |  | 
|  | bp_loc: an lldb.SBBreakpointLocation object that represents the breakpoint location that was hit. | 
|  |  | 
|  | dict:   the python session dictionary hit. | 
|  |  | 
|  | )" | 
|  | "When specifying a python function with the --python-function option, you need \ | 
|  | to supply the function name prepended by the module name:" | 
|  | R"( | 
|  |  | 
|  | --python-function myutils.breakpoint_callback | 
|  |  | 
|  | The function itself must have either of the following prototypes: | 
|  |  | 
|  | def breakpoint_callback(frame, bp_loc, internal_dict): | 
|  | # Your code goes here | 
|  |  | 
|  | or: | 
|  |  | 
|  | def breakpoint_callback(frame, bp_loc, extra_args, internal_dict): | 
|  | # Your code goes here | 
|  |  | 
|  | )" | 
|  | "The arguments are the same as the arguments passed to generated functions as \ | 
|  | described above.  In the second form, any -k and -v pairs provided to the command will \ | 
|  | be packaged into a SBDictionary in an SBStructuredData and passed as the extra_args parameter. \ | 
|  | \n\n\ | 
|  | Note that the global variable 'lldb.frame' will NOT be updated when \ | 
|  | this function is called, so be sure to use the 'frame' argument. The 'frame' argument \ | 
|  | can get you to the thread via frame.GetThread(), the thread can get you to the \ | 
|  | process via thread.GetProcess(), and the process can get you back to the target \ | 
|  | via process.GetTarget()." | 
|  | R"( | 
|  |  | 
|  | )" | 
|  | "Important Note: As Python code gets collected into functions, access to global \ | 
|  | variables requires explicit scoping using the 'global' keyword.  Be sure to use correct \ | 
|  | Python syntax, including indentation, when entering Python breakpoint commands." | 
|  | R"( | 
|  |  | 
|  | Example Python one-line breakpoint command: | 
|  |  | 
|  | (lldb) breakpoint command add -s python 1 | 
|  | Enter your Python command(s). Type 'DONE' to end. | 
|  | def function (frame, bp_loc, internal_dict): | 
|  | """frame: the lldb.SBFrame for the location at which you stopped | 
|  | bp_loc: an lldb.SBBreakpointLocation for the breakpoint location information | 
|  | internal_dict: an LLDB support object not to be used""" | 
|  | print("Hit this breakpoint!") | 
|  | DONE | 
|  |  | 
|  | As a convenience, this also works for a short Python one-liner: | 
|  |  | 
|  | (lldb) breakpoint command add -s python 1 -o 'import time; print(time.asctime())' | 
|  | (lldb) run | 
|  | Launching '.../a.out'  (x86_64) | 
|  | (lldb) Fri Sep 10 12:17:45 2010 | 
|  | Process 21778 Stopped | 
|  | * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = breakpoint 1.1, queue = com.apple.main-thread | 
|  | 36 | 
|  | 37   	int c(int val) | 
|  | 38   	{ | 
|  | 39 ->	    return val + 3; | 
|  | 40   	} | 
|  | 41 | 
|  | 42   	int main (int argc, char const *argv[]) | 
|  |  | 
|  | Example multiple line Python breakpoint command: | 
|  |  | 
|  | (lldb) breakpoint command add -s p 1 | 
|  | Enter your Python command(s). Type 'DONE' to end. | 
|  | def function (frame, bp_loc, internal_dict): | 
|  | """frame: the lldb.SBFrame for the location at which you stopped | 
|  | bp_loc: an lldb.SBBreakpointLocation for the breakpoint location information | 
|  | internal_dict: an LLDB support object not to be used""" | 
|  | global bp_count | 
|  | bp_count = bp_count + 1 | 
|  | print("Hit this breakpoint " + repr(bp_count) + " times!") | 
|  | DONE | 
|  |  | 
|  | )" | 
|  | "In this case, since there is a reference to a global variable, \ | 
|  | 'bp_count', you will also need to make sure 'bp_count' exists and is \ | 
|  | initialized:" | 
|  | R"( | 
|  |  | 
|  | (lldb) script | 
|  | >>> bp_count = 0 | 
|  | >>> quit() | 
|  |  | 
|  | )" | 
|  | "Your Python code, however organized, can optionally return a value.  \ | 
|  | If the returned value is False, that tells LLDB not to stop at the breakpoint \ | 
|  | to which the code is associated. Returning anything other than False, or even \ | 
|  | returning None, or even omitting a return statement entirely, will cause \ | 
|  | LLDB to stop." | 
|  | R"( | 
|  |  | 
|  | )" | 
|  | "Final Note: A warning that no breakpoint command was generated when there \ | 
|  | are no syntax errors may indicate that a function was declared but never called."); | 
|  |  | 
|  | m_all_options.Append(&m_options); | 
|  | m_all_options.Append(&m_func_options, LLDB_OPT_SET_2 | LLDB_OPT_SET_3, | 
|  | LLDB_OPT_SET_2); | 
|  | m_all_options.Finalize(); | 
|  |  | 
|  | CommandArgumentEntry arg; | 
|  | CommandArgumentData bp_id_arg; | 
|  |  | 
|  | // Define the first (and only) variant of this arg. | 
|  | bp_id_arg.arg_type = eArgTypeBreakpointID; | 
|  | bp_id_arg.arg_repetition = eArgRepeatOptional; | 
|  |  | 
|  | // There is only one variant this argument could be; put it into the | 
|  | // argument entry. | 
|  | arg.push_back(bp_id_arg); | 
|  |  | 
|  | // Push the data for the first argument into the m_arguments vector. | 
|  | m_arguments.push_back(arg); | 
|  | } | 
|  |  | 
|  | ~CommandObjectBreakpointCommandAdd() override = default; | 
|  |  | 
|  | Options *GetOptions() override { return &m_all_options; } | 
|  |  | 
|  | void IOHandlerActivated(IOHandler &io_handler, bool interactive) override { | 
|  | StreamFileSP output_sp(io_handler.GetOutputStreamFileSP()); | 
|  | if (output_sp && interactive) { | 
|  | output_sp->PutCString(g_reader_instructions); | 
|  | output_sp->Flush(); | 
|  | } | 
|  | } | 
|  |  | 
|  | void IOHandlerInputComplete(IOHandler &io_handler, | 
|  | std::string &line) override { | 
|  | io_handler.SetIsDone(true); | 
|  |  | 
|  | std::vector<std::reference_wrapper<BreakpointOptions>> *bp_options_vec = | 
|  | (std::vector<std::reference_wrapper<BreakpointOptions>> *) | 
|  | io_handler.GetUserData(); | 
|  | for (BreakpointOptions &bp_options : *bp_options_vec) { | 
|  | auto cmd_data = std::make_unique<BreakpointOptions::CommandData>(); | 
|  | cmd_data->user_source.SplitIntoLines(line.c_str(), line.size()); | 
|  | bp_options.SetCommandDataCallback(cmd_data); | 
|  | } | 
|  | } | 
|  |  | 
|  | void CollectDataForBreakpointCommandCallback( | 
|  | std::vector<std::reference_wrapper<BreakpointOptions>> &bp_options_vec, | 
|  | CommandReturnObject &result) { | 
|  | m_interpreter.GetLLDBCommandsFromIOHandler( | 
|  | "> ",             // Prompt | 
|  | *this,            // IOHandlerDelegate | 
|  | &bp_options_vec); // Baton for the "io_handler" that will be passed back | 
|  | // into our IOHandlerDelegate functions | 
|  | } | 
|  |  | 
|  | /// Set a one-liner as the callback for the breakpoint. | 
|  | void SetBreakpointCommandCallback( | 
|  | std::vector<std::reference_wrapper<BreakpointOptions>> &bp_options_vec, | 
|  | const char *oneliner) { | 
|  | for (BreakpointOptions &bp_options : bp_options_vec) { | 
|  | auto cmd_data = std::make_unique<BreakpointOptions::CommandData>(); | 
|  |  | 
|  | cmd_data->user_source.AppendString(oneliner); | 
|  | cmd_data->stop_on_error = m_options.m_stop_on_error; | 
|  |  | 
|  | bp_options.SetCommandDataCallback(cmd_data); | 
|  | } | 
|  | } | 
|  |  | 
|  | class CommandOptions : public OptionGroup { | 
|  | public: | 
|  | CommandOptions() = default; | 
|  |  | 
|  | ~CommandOptions() override = default; | 
|  |  | 
|  | Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, | 
|  | ExecutionContext *execution_context) override { | 
|  | Status error; | 
|  | const int short_option = | 
|  | g_breakpoint_command_add_options[option_idx].short_option; | 
|  |  | 
|  | switch (short_option) { | 
|  | case 'o': | 
|  | m_use_one_liner = true; | 
|  | m_one_liner = std::string(option_arg); | 
|  | break; | 
|  |  | 
|  | case 's': | 
|  | m_script_language = (lldb::ScriptLanguage)OptionArgParser::ToOptionEnum( | 
|  | option_arg, | 
|  | g_breakpoint_command_add_options[option_idx].enum_values, | 
|  | eScriptLanguageNone, error); | 
|  | switch (m_script_language) { | 
|  | case eScriptLanguagePython: | 
|  | case eScriptLanguageLua: | 
|  | m_use_script_language = true; | 
|  | break; | 
|  | case eScriptLanguageNone: | 
|  | case eScriptLanguageUnknown: | 
|  | m_use_script_language = false; | 
|  | break; | 
|  | } | 
|  | break; | 
|  |  | 
|  | case 'e': { | 
|  | bool success = false; | 
|  | m_stop_on_error = | 
|  | OptionArgParser::ToBoolean(option_arg, false, &success); | 
|  | if (!success) | 
|  | error.SetErrorStringWithFormat( | 
|  | "invalid value for stop-on-error: \"%s\"", | 
|  | option_arg.str().c_str()); | 
|  | } break; | 
|  |  | 
|  | case 'D': | 
|  | m_use_dummy = true; | 
|  | break; | 
|  |  | 
|  | default: | 
|  | llvm_unreachable("Unimplemented option"); | 
|  | } | 
|  | return error; | 
|  | } | 
|  |  | 
|  | void OptionParsingStarting(ExecutionContext *execution_context) override { | 
|  | m_use_commands = true; | 
|  | m_use_script_language = false; | 
|  | m_script_language = eScriptLanguageNone; | 
|  |  | 
|  | m_use_one_liner = false; | 
|  | m_stop_on_error = true; | 
|  | m_one_liner.clear(); | 
|  | m_use_dummy = false; | 
|  | } | 
|  |  | 
|  | llvm::ArrayRef<OptionDefinition> GetDefinitions() override { | 
|  | return llvm::ArrayRef(g_breakpoint_command_add_options); | 
|  | } | 
|  |  | 
|  | // Instance variables to hold the values for command options. | 
|  |  | 
|  | bool m_use_commands = false; | 
|  | bool m_use_script_language = false; | 
|  | lldb::ScriptLanguage m_script_language = eScriptLanguageNone; | 
|  |  | 
|  | // Instance variables to hold the values for one_liner options. | 
|  | bool m_use_one_liner = false; | 
|  | std::string m_one_liner; | 
|  | bool m_stop_on_error; | 
|  | bool m_use_dummy; | 
|  | }; | 
|  |  | 
|  | protected: | 
|  | bool DoExecute(Args &command, CommandReturnObject &result) override { | 
|  | Target &target = GetSelectedOrDummyTarget(m_options.m_use_dummy); | 
|  |  | 
|  | const BreakpointList &breakpoints = target.GetBreakpointList(); | 
|  | size_t num_breakpoints = breakpoints.GetSize(); | 
|  |  | 
|  | if (num_breakpoints == 0) { | 
|  | result.AppendError("No breakpoints exist to have commands added"); | 
|  | return false; | 
|  | } | 
|  |  | 
|  | if (!m_func_options.GetName().empty()) { | 
|  | m_options.m_use_one_liner = false; | 
|  | if (!m_options.m_use_script_language) { | 
|  | m_options.m_script_language = GetDebugger().GetScriptLanguage(); | 
|  | m_options.m_use_script_language = true; | 
|  | } | 
|  | } | 
|  |  | 
|  | BreakpointIDList valid_bp_ids; | 
|  | CommandObjectMultiwordBreakpoint::VerifyBreakpointOrLocationIDs( | 
|  | command, &target, result, &valid_bp_ids, | 
|  | BreakpointName::Permissions::PermissionKinds::listPerm); | 
|  |  | 
|  | m_bp_options_vec.clear(); | 
|  |  | 
|  | if (result.Succeeded()) { | 
|  | const size_t count = valid_bp_ids.GetSize(); | 
|  |  | 
|  | for (size_t i = 0; i < count; ++i) { | 
|  | BreakpointID cur_bp_id = valid_bp_ids.GetBreakpointIDAtIndex(i); | 
|  | if (cur_bp_id.GetBreakpointID() != LLDB_INVALID_BREAK_ID) { | 
|  | Breakpoint *bp = | 
|  | target.GetBreakpointByID(cur_bp_id.GetBreakpointID()).get(); | 
|  | if (cur_bp_id.GetLocationID() == LLDB_INVALID_BREAK_ID) { | 
|  | // This breakpoint does not have an associated location. | 
|  | m_bp_options_vec.push_back(bp->GetOptions()); | 
|  | } else { | 
|  | BreakpointLocationSP bp_loc_sp( | 
|  | bp->FindLocationByID(cur_bp_id.GetLocationID())); | 
|  | // This breakpoint does have an associated location. Get its | 
|  | // breakpoint options. | 
|  | if (bp_loc_sp) | 
|  | m_bp_options_vec.push_back(bp_loc_sp->GetLocationOptions()); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | // If we are using script language, get the script interpreter in order | 
|  | // to set or collect command callback.  Otherwise, call the methods | 
|  | // associated with this object. | 
|  | if (m_options.m_use_script_language) { | 
|  | Status error; | 
|  | ScriptInterpreter *script_interp = GetDebugger().GetScriptInterpreter( | 
|  | /*can_create=*/true, m_options.m_script_language); | 
|  | // Special handling for one-liner specified inline. | 
|  | if (m_options.m_use_one_liner) { | 
|  | error = script_interp->SetBreakpointCommandCallback( | 
|  | m_bp_options_vec, m_options.m_one_liner.c_str()); | 
|  | } else if (!m_func_options.GetName().empty()) { | 
|  | error = script_interp->SetBreakpointCommandCallbackFunction( | 
|  | m_bp_options_vec, m_func_options.GetName().c_str(), | 
|  | m_func_options.GetStructuredData()); | 
|  | } else { | 
|  | script_interp->CollectDataForBreakpointCommandCallback( | 
|  | m_bp_options_vec, result); | 
|  | } | 
|  | if (!error.Success()) | 
|  | result.SetError(error); | 
|  | } else { | 
|  | // Special handling for one-liner specified inline. | 
|  | if (m_options.m_use_one_liner) | 
|  | SetBreakpointCommandCallback(m_bp_options_vec, | 
|  | m_options.m_one_liner.c_str()); | 
|  | else | 
|  | CollectDataForBreakpointCommandCallback(m_bp_options_vec, result); | 
|  | } | 
|  | } | 
|  |  | 
|  | return result.Succeeded(); | 
|  | } | 
|  |  | 
|  | private: | 
|  | CommandOptions m_options; | 
|  | OptionGroupPythonClassWithDict m_func_options; | 
|  | OptionGroupOptions m_all_options; | 
|  |  | 
|  | std::vector<std::reference_wrapper<BreakpointOptions>> | 
|  | m_bp_options_vec; // This stores the | 
|  | // breakpoint options that | 
|  | // we are currently | 
|  | // collecting commands for.  In the CollectData... calls we need to hand this | 
|  | // off to the IOHandler, which may run asynchronously. So we have to have | 
|  | // some way to keep it alive, and not leak it. Making it an ivar of the | 
|  | // command object, which never goes away achieves this.  Note that if we were | 
|  | // able to run the same command concurrently in one interpreter we'd have to | 
|  | // make this "per invocation".  But there are many more reasons why it is not | 
|  | // in general safe to do that in lldb at present, so it isn't worthwhile to | 
|  | // come up with a more complex mechanism to address this particular weakness | 
|  | // right now. | 
|  | static const char *g_reader_instructions; | 
|  | }; | 
|  |  | 
|  | const char *CommandObjectBreakpointCommandAdd::g_reader_instructions = | 
|  | "Enter your debugger command(s).  Type 'DONE' to end.\n"; | 
|  |  | 
|  | // CommandObjectBreakpointCommandDelete | 
|  |  | 
|  | #define LLDB_OPTIONS_breakpoint_command_delete | 
|  | #include "CommandOptions.inc" | 
|  |  | 
|  | class CommandObjectBreakpointCommandDelete : public CommandObjectParsed { | 
|  | public: | 
|  | CommandObjectBreakpointCommandDelete(CommandInterpreter &interpreter) | 
|  | : CommandObjectParsed(interpreter, "delete", | 
|  | "Delete the set of commands from a breakpoint.", | 
|  | nullptr) { | 
|  | CommandArgumentEntry arg; | 
|  | CommandArgumentData bp_id_arg; | 
|  |  | 
|  | // Define the first (and only) variant of this arg. | 
|  | bp_id_arg.arg_type = eArgTypeBreakpointID; | 
|  | bp_id_arg.arg_repetition = eArgRepeatPlain; | 
|  |  | 
|  | // There is only one variant this argument could be; put it into the | 
|  | // argument entry. | 
|  | arg.push_back(bp_id_arg); | 
|  |  | 
|  | // Push the data for the first argument into the m_arguments vector. | 
|  | m_arguments.push_back(arg); | 
|  | } | 
|  |  | 
|  | ~CommandObjectBreakpointCommandDelete() override = default; | 
|  |  | 
|  | Options *GetOptions() override { return &m_options; } | 
|  |  | 
|  | class CommandOptions : public Options { | 
|  | public: | 
|  | CommandOptions() = default; | 
|  |  | 
|  | ~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 'D': | 
|  | m_use_dummy = true; | 
|  | break; | 
|  |  | 
|  | default: | 
|  | llvm_unreachable("Unimplemented option"); | 
|  | } | 
|  |  | 
|  | return error; | 
|  | } | 
|  |  | 
|  | void OptionParsingStarting(ExecutionContext *execution_context) override { | 
|  | m_use_dummy = false; | 
|  | } | 
|  |  | 
|  | llvm::ArrayRef<OptionDefinition> GetDefinitions() override { | 
|  | return llvm::ArrayRef(g_breakpoint_command_delete_options); | 
|  | } | 
|  |  | 
|  | // Instance variables to hold the values for command options. | 
|  | bool m_use_dummy = false; | 
|  | }; | 
|  |  | 
|  | protected: | 
|  | bool DoExecute(Args &command, CommandReturnObject &result) override { | 
|  | Target &target = GetSelectedOrDummyTarget(m_options.m_use_dummy); | 
|  |  | 
|  | const BreakpointList &breakpoints = target.GetBreakpointList(); | 
|  | size_t num_breakpoints = breakpoints.GetSize(); | 
|  |  | 
|  | if (num_breakpoints == 0) { | 
|  | result.AppendError("No breakpoints exist to have commands deleted"); | 
|  | return false; | 
|  | } | 
|  |  | 
|  | if (command.empty()) { | 
|  | result.AppendError( | 
|  | "No breakpoint specified from which to delete the commands"); | 
|  | return false; | 
|  | } | 
|  |  | 
|  | BreakpointIDList valid_bp_ids; | 
|  | CommandObjectMultiwordBreakpoint::VerifyBreakpointOrLocationIDs( | 
|  | command, &target, result, &valid_bp_ids, | 
|  | BreakpointName::Permissions::PermissionKinds::listPerm); | 
|  |  | 
|  | if (result.Succeeded()) { | 
|  | const size_t count = valid_bp_ids.GetSize(); | 
|  | for (size_t i = 0; i < count; ++i) { | 
|  | BreakpointID cur_bp_id = valid_bp_ids.GetBreakpointIDAtIndex(i); | 
|  | if (cur_bp_id.GetBreakpointID() != LLDB_INVALID_BREAK_ID) { | 
|  | Breakpoint *bp = | 
|  | target.GetBreakpointByID(cur_bp_id.GetBreakpointID()).get(); | 
|  | if (cur_bp_id.GetLocationID() != LLDB_INVALID_BREAK_ID) { | 
|  | BreakpointLocationSP bp_loc_sp( | 
|  | bp->FindLocationByID(cur_bp_id.GetLocationID())); | 
|  | if (bp_loc_sp) | 
|  | bp_loc_sp->ClearCallback(); | 
|  | else { | 
|  | result.AppendErrorWithFormat("Invalid breakpoint ID: %u.%u.\n", | 
|  | cur_bp_id.GetBreakpointID(), | 
|  | cur_bp_id.GetLocationID()); | 
|  | return false; | 
|  | } | 
|  | } else { | 
|  | bp->ClearCallback(); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  | return result.Succeeded(); | 
|  | } | 
|  |  | 
|  | private: | 
|  | CommandOptions m_options; | 
|  | }; | 
|  |  | 
|  | // CommandObjectBreakpointCommandList | 
|  |  | 
|  | class CommandObjectBreakpointCommandList : public CommandObjectParsed { | 
|  | public: | 
|  | CommandObjectBreakpointCommandList(CommandInterpreter &interpreter) | 
|  | : CommandObjectParsed(interpreter, "list", | 
|  | "List the script or set of commands to be " | 
|  | "executed when the breakpoint is hit.", | 
|  | nullptr, eCommandRequiresTarget) { | 
|  | CommandArgumentEntry arg; | 
|  | CommandArgumentData bp_id_arg; | 
|  |  | 
|  | // Define the first (and only) variant of this arg. | 
|  | bp_id_arg.arg_type = eArgTypeBreakpointID; | 
|  | bp_id_arg.arg_repetition = eArgRepeatPlain; | 
|  |  | 
|  | // There is only one variant this argument could be; put it into the | 
|  | // argument entry. | 
|  | arg.push_back(bp_id_arg); | 
|  |  | 
|  | // Push the data for the first argument into the m_arguments vector. | 
|  | m_arguments.push_back(arg); | 
|  | } | 
|  |  | 
|  | ~CommandObjectBreakpointCommandList() override = default; | 
|  |  | 
|  | protected: | 
|  | bool DoExecute(Args &command, CommandReturnObject &result) override { | 
|  | Target *target = &GetSelectedTarget(); | 
|  |  | 
|  | const BreakpointList &breakpoints = target->GetBreakpointList(); | 
|  | size_t num_breakpoints = breakpoints.GetSize(); | 
|  |  | 
|  | if (num_breakpoints == 0) { | 
|  | result.AppendError("No breakpoints exist for which to list commands"); | 
|  | return false; | 
|  | } | 
|  |  | 
|  | if (command.empty()) { | 
|  | result.AppendError( | 
|  | "No breakpoint specified for which to list the commands"); | 
|  | return false; | 
|  | } | 
|  |  | 
|  | BreakpointIDList valid_bp_ids; | 
|  | CommandObjectMultiwordBreakpoint::VerifyBreakpointOrLocationIDs( | 
|  | command, target, result, &valid_bp_ids, | 
|  | BreakpointName::Permissions::PermissionKinds::listPerm); | 
|  |  | 
|  | if (result.Succeeded()) { | 
|  | const size_t count = valid_bp_ids.GetSize(); | 
|  | for (size_t i = 0; i < count; ++i) { | 
|  | BreakpointID cur_bp_id = valid_bp_ids.GetBreakpointIDAtIndex(i); | 
|  | if (cur_bp_id.GetBreakpointID() != LLDB_INVALID_BREAK_ID) { | 
|  | Breakpoint *bp = | 
|  | target->GetBreakpointByID(cur_bp_id.GetBreakpointID()).get(); | 
|  |  | 
|  | if (bp) { | 
|  | BreakpointLocationSP bp_loc_sp; | 
|  | if (cur_bp_id.GetLocationID() != LLDB_INVALID_BREAK_ID) { | 
|  | bp_loc_sp = bp->FindLocationByID(cur_bp_id.GetLocationID()); | 
|  | if (!bp_loc_sp) { | 
|  | result.AppendErrorWithFormat("Invalid breakpoint ID: %u.%u.\n", | 
|  | cur_bp_id.GetBreakpointID(), | 
|  | cur_bp_id.GetLocationID()); | 
|  | return false; | 
|  | } | 
|  | } | 
|  |  | 
|  | StreamString id_str; | 
|  | BreakpointID::GetCanonicalReference(&id_str, | 
|  | cur_bp_id.GetBreakpointID(), | 
|  | cur_bp_id.GetLocationID()); | 
|  | const Baton *baton = nullptr; | 
|  | if (bp_loc_sp) | 
|  | baton = | 
|  | bp_loc_sp | 
|  | ->GetOptionsSpecifyingKind(BreakpointOptions::eCallback) | 
|  | .GetBaton(); | 
|  | else | 
|  | baton = bp->GetOptions().GetBaton(); | 
|  |  | 
|  | if (baton) { | 
|  | result.GetOutputStream().Printf("Breakpoint %s:\n", | 
|  | id_str.GetData()); | 
|  | baton->GetDescription(result.GetOutputStream().AsRawOstream(), | 
|  | eDescriptionLevelFull, | 
|  | result.GetOutputStream().GetIndentLevel() + | 
|  | 2); | 
|  | } else { | 
|  | result.AppendMessageWithFormat( | 
|  | "Breakpoint %s does not have an associated command.\n", | 
|  | id_str.GetData()); | 
|  | } | 
|  | } | 
|  | result.SetStatus(eReturnStatusSuccessFinishResult); | 
|  | } else { | 
|  | result.AppendErrorWithFormat("Invalid breakpoint ID: %u.\n", | 
|  | cur_bp_id.GetBreakpointID()); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | return result.Succeeded(); | 
|  | } | 
|  | }; | 
|  |  | 
|  | // CommandObjectBreakpointCommand | 
|  |  | 
|  | CommandObjectBreakpointCommand::CommandObjectBreakpointCommand( | 
|  | CommandInterpreter &interpreter) | 
|  | : CommandObjectMultiword( | 
|  | interpreter, "command", | 
|  | "Commands for adding, removing and listing " | 
|  | "LLDB commands executed when a breakpoint is " | 
|  | "hit.", | 
|  | "command <sub-command> [<sub-command-options>] <breakpoint-id>") { | 
|  | CommandObjectSP add_command_object( | 
|  | new CommandObjectBreakpointCommandAdd(interpreter)); | 
|  | CommandObjectSP delete_command_object( | 
|  | new CommandObjectBreakpointCommandDelete(interpreter)); | 
|  | CommandObjectSP list_command_object( | 
|  | new CommandObjectBreakpointCommandList(interpreter)); | 
|  |  | 
|  | add_command_object->SetCommandName("breakpoint command add"); | 
|  | delete_command_object->SetCommandName("breakpoint command delete"); | 
|  | list_command_object->SetCommandName("breakpoint command list"); | 
|  |  | 
|  | LoadSubCommand("add", add_command_object); | 
|  | LoadSubCommand("delete", delete_command_object); | 
|  | LoadSubCommand("list", list_command_object); | 
|  | } | 
|  |  | 
|  | CommandObjectBreakpointCommand::~CommandObjectBreakpointCommand() = default; |