| //===-- CommandObjectWatchpoint.cpp -----------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "CommandObjectWatchpoint.h" |
| |
| // C Includes |
| // C++ Includes |
| // Other libraries and framework includes |
| // Project includes |
| #include "lldb/Breakpoint/Watchpoint.h" |
| #include "lldb/Breakpoint/WatchpointList.h" |
| #include "lldb/Core/StreamString.h" |
| #include "lldb/Core/ValueObject.h" |
| #include "lldb/Core/ValueObjectVariable.h" |
| #include "lldb/Interpreter/CommandInterpreter.h" |
| #include "lldb/Interpreter/CommandReturnObject.h" |
| #include "lldb/Interpreter/CommandCompletions.h" |
| #include "lldb/Symbol/Variable.h" |
| #include "lldb/Symbol/VariableList.h" |
| #include "lldb/Target/Target.h" |
| |
| #include <vector> |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| static void |
| AddWatchpointDescription(Stream *s, Watchpoint *wp, lldb::DescriptionLevel level) |
| { |
| s->IndentMore(); |
| wp->GetDescription(s, level); |
| s->IndentLess(); |
| s->EOL(); |
| } |
| |
| static bool |
| CheckTargetForWatchpointOperations(Target *target, CommandReturnObject &result) |
| { |
| if (target == NULL) |
| { |
| result.AppendError ("Invalid target. No existing target or watchpoints."); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| bool process_is_valid = target->GetProcessSP() && target->GetProcessSP()->IsAlive(); |
| if (!process_is_valid) |
| { |
| result.AppendError ("Thre's no process or it is not alive."); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| // Target passes our checks, return true. |
| return true; |
| } |
| |
| #include "llvm/ADT/StringRef.h" |
| |
| // Equivalent class: {"-", "to", "To", "TO"} of range specifier array. |
| static const char* RSA[4] = { "-", "to", "To", "TO" }; |
| |
| // Return the index to RSA if found; otherwise -1 is returned. |
| static int32_t |
| WithRSAIndex(llvm::StringRef &Arg) |
| { |
| |
| uint32_t i; |
| for (i = 0; i < 4; ++i) |
| if (Arg.find(RSA[i]) != llvm::StringRef::npos) |
| return i; |
| return -1; |
| } |
| |
| // Return true if wp_ids is successfully populated with the watch ids. |
| // False otherwise. |
| static bool |
| VerifyWatchpointIDs(Args &args, std::vector<uint32_t> &wp_ids) |
| { |
| // Pre-condition: args.GetArgumentCount() > 0. |
| assert(args.GetArgumentCount() > 0); |
| |
| llvm::StringRef Minus("-"); |
| std::vector<llvm::StringRef> StrRefArgs; |
| std::pair<llvm::StringRef, llvm::StringRef> Pair; |
| size_t i; |
| int32_t idx; |
| // Go through the argments and make a canonical form of arg list containing |
| // only numbers with possible "-" in between. |
| for (i = 0; i < args.GetArgumentCount(); ++i) { |
| llvm::StringRef Arg(args.GetArgumentAtIndex(i)); |
| if ((idx = WithRSAIndex(Arg)) == -1) { |
| StrRefArgs.push_back(Arg); |
| continue; |
| } |
| // The Arg contains the range specifier, split it, then. |
| Pair = Arg.split(RSA[idx]); |
| if (!Pair.first.empty()) |
| StrRefArgs.push_back(Pair.first); |
| StrRefArgs.push_back(Minus); |
| if (!Pair.second.empty()) |
| StrRefArgs.push_back(Pair.second); |
| } |
| // Now process the canonical list and fill in the vector of uint32_t's. |
| // If there is any error, return false and the client should ignore wp_ids. |
| uint32_t beg, end, id; |
| size_t size = StrRefArgs.size(); |
| bool in_range = false; |
| for (i = 0; i < size; ++i) { |
| llvm::StringRef Arg = StrRefArgs[i]; |
| if (in_range) { |
| // Look for the 'end' of the range. Note StringRef::getAsInteger() |
| // returns true to signify error while parsing. |
| if (Arg.getAsInteger(0, end)) |
| return false; |
| // Found a range! Now append the elements. |
| for (id = beg; id <= end; ++id) |
| wp_ids.push_back(id); |
| in_range = false; |
| continue; |
| } |
| if (i < (size - 1) && StrRefArgs[i+1] == Minus) { |
| if (Arg.getAsInteger(0, beg)) |
| return false; |
| // Turn on the in_range flag, we are looking for end of range next. |
| ++i; in_range = true; |
| continue; |
| } |
| // Otherwise, we have a simple ID. Just append it. |
| if (Arg.getAsInteger(0, beg)) |
| return false; |
| wp_ids.push_back(beg); |
| } |
| // It is an error if after the loop, we're still in_range. |
| if (in_range) |
| return false; |
| |
| return true; // Success! |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectMultiwordWatchpoint |
| //------------------------------------------------------------------------- |
| #pragma mark MultiwordWatchpoint |
| |
| CommandObjectMultiwordWatchpoint::CommandObjectMultiwordWatchpoint(CommandInterpreter &interpreter) : |
| CommandObjectMultiword (interpreter, |
| "watchpoint", |
| "A set of commands for operating on watchpoints.", |
| "watchpoint <command> [<command-options>]") |
| { |
| bool status; |
| |
| CommandObjectSP list_command_object (new CommandObjectWatchpointList (interpreter)); |
| CommandObjectSP enable_command_object (new CommandObjectWatchpointEnable (interpreter)); |
| CommandObjectSP disable_command_object (new CommandObjectWatchpointDisable (interpreter)); |
| CommandObjectSP delete_command_object (new CommandObjectWatchpointDelete (interpreter)); |
| CommandObjectSP ignore_command_object (new CommandObjectWatchpointIgnore (interpreter)); |
| CommandObjectSP modify_command_object (new CommandObjectWatchpointModify (interpreter)); |
| CommandObjectSP set_command_object (new CommandObjectWatchpointSet (interpreter)); |
| |
| list_command_object->SetCommandName ("watchpoint list"); |
| enable_command_object->SetCommandName("watchpoint enable"); |
| disable_command_object->SetCommandName("watchpoint disable"); |
| delete_command_object->SetCommandName("watchpoint delete"); |
| ignore_command_object->SetCommandName("watchpoint ignore"); |
| modify_command_object->SetCommandName("watchpoint modify"); |
| set_command_object->SetCommandName("watchpoint set"); |
| |
| status = LoadSubCommand ("list", list_command_object); |
| status = LoadSubCommand ("enable", enable_command_object); |
| status = LoadSubCommand ("disable", disable_command_object); |
| status = LoadSubCommand ("delete", delete_command_object); |
| status = LoadSubCommand ("ignore", ignore_command_object); |
| status = LoadSubCommand ("modify", modify_command_object); |
| status = LoadSubCommand ("set", set_command_object); |
| } |
| |
| CommandObjectMultiwordWatchpoint::~CommandObjectMultiwordWatchpoint() |
| { |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointList::Options |
| //------------------------------------------------------------------------- |
| #pragma mark List::CommandOptions |
| |
| CommandObjectWatchpointList::CommandOptions::CommandOptions(CommandInterpreter &interpreter) : |
| Options(interpreter), |
| m_level(lldb::eDescriptionLevelBrief) // Watchpoint List defaults to brief descriptions |
| { |
| } |
| |
| CommandObjectWatchpointList::CommandOptions::~CommandOptions() |
| { |
| } |
| |
| OptionDefinition |
| CommandObjectWatchpointList::CommandOptions::g_option_table[] = |
| { |
| { LLDB_OPT_SET_1, false, "brief", 'b', no_argument, NULL, 0, eArgTypeNone, |
| "Give a brief description of the watchpoint (no location info)."}, |
| |
| { LLDB_OPT_SET_2, false, "full", 'f', no_argument, NULL, 0, eArgTypeNone, |
| "Give a full description of the watchpoint and its locations."}, |
| |
| { LLDB_OPT_SET_3, false, "verbose", 'v', no_argument, NULL, 0, eArgTypeNone, |
| "Explain everything we know about the watchpoint (for debugging debugger bugs)." }, |
| |
| { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } |
| }; |
| |
| const OptionDefinition* |
| CommandObjectWatchpointList::CommandOptions::GetDefinitions() |
| { |
| return g_option_table; |
| } |
| |
| Error |
| CommandObjectWatchpointList::CommandOptions::SetOptionValue(uint32_t option_idx, const char *option_arg) |
| { |
| Error error; |
| char short_option = (char) m_getopt_table[option_idx].val; |
| |
| switch (short_option) |
| { |
| case 'b': |
| m_level = lldb::eDescriptionLevelBrief; |
| break; |
| case 'f': |
| m_level = lldb::eDescriptionLevelFull; |
| break; |
| case 'v': |
| m_level = lldb::eDescriptionLevelVerbose; |
| break; |
| default: |
| error.SetErrorStringWithFormat("unrecognized option '%c'", short_option); |
| break; |
| } |
| |
| return error; |
| } |
| |
| void |
| CommandObjectWatchpointList::CommandOptions::OptionParsingStarting() |
| { |
| m_level = lldb::eDescriptionLevelFull; |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointList |
| //------------------------------------------------------------------------- |
| #pragma mark List |
| |
| CommandObjectWatchpointList::CommandObjectWatchpointList(CommandInterpreter &interpreter) : |
| CommandObject(interpreter, |
| "watchpoint list", |
| "List all watchpoints at configurable levels of detail.", |
| NULL), |
| m_options(interpreter) |
| { |
| CommandArgumentEntry arg; |
| CommandObject::AddIDsArgumentData(arg, eArgTypeWatchpointID, eArgTypeWatchpointIDRange); |
| // Add the entry for the first argument for this command to the object's arguments vector. |
| m_arguments.push_back(arg); |
| } |
| |
| CommandObjectWatchpointList::~CommandObjectWatchpointList() |
| { |
| } |
| |
| Options * |
| CommandObjectWatchpointList::GetOptions() |
| { |
| return &m_options; |
| } |
| |
| bool |
| CommandObjectWatchpointList::Execute(Args& args, CommandReturnObject &result) |
| { |
| Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); |
| if (target == NULL) |
| { |
| result.AppendError ("Invalid target. No current target or watchpoints."); |
| result.SetStatus (eReturnStatusSuccessFinishNoResult); |
| return true; |
| } |
| |
| const WatchpointList &watchpoints = target->GetWatchpointList(); |
| Mutex::Locker locker; |
| target->GetWatchpointList().GetListMutex(locker); |
| |
| size_t num_watchpoints = watchpoints.GetSize(); |
| |
| if (num_watchpoints == 0) |
| { |
| result.AppendMessage("No watchpoints currently set."); |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| return true; |
| } |
| |
| Stream &output_stream = result.GetOutputStream(); |
| |
| if (args.GetArgumentCount() == 0) |
| { |
| // No watchpoint selected; show info about all currently set watchpoints. |
| result.AppendMessage ("Current watchpoints:"); |
| for (size_t i = 0; i < num_watchpoints; ++i) |
| { |
| Watchpoint *wp = watchpoints.GetByIndex(i).get(); |
| AddWatchpointDescription(&output_stream, wp, m_options.m_level); |
| } |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| } |
| else |
| { |
| // Particular watchpoints selected; enable them. |
| std::vector<uint32_t> wp_ids; |
| if (!VerifyWatchpointIDs(args, wp_ids)) |
| { |
| result.AppendError("Invalid watchpoints specification."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| const size_t size = wp_ids.size(); |
| for (size_t i = 0; i < size; ++i) |
| { |
| Watchpoint *wp = watchpoints.FindByID(wp_ids[i]).get(); |
| if (wp) |
| AddWatchpointDescription(&output_stream, wp, m_options.m_level); |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| } |
| } |
| |
| return result.Succeeded(); |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointEnable |
| //------------------------------------------------------------------------- |
| #pragma mark Enable |
| |
| CommandObjectWatchpointEnable::CommandObjectWatchpointEnable(CommandInterpreter &interpreter) : |
| CommandObject(interpreter, |
| "enable", |
| "Enable the specified disabled watchpoint(s). If no watchpoints are specified, enable all of them.", |
| NULL) |
| { |
| CommandArgumentEntry arg; |
| CommandObject::AddIDsArgumentData(arg, eArgTypeWatchpointID, eArgTypeWatchpointIDRange); |
| // Add the entry for the first argument for this command to the object's arguments vector. |
| m_arguments.push_back(arg); |
| } |
| |
| CommandObjectWatchpointEnable::~CommandObjectWatchpointEnable() |
| { |
| } |
| |
| bool |
| CommandObjectWatchpointEnable::Execute(Args& args, CommandReturnObject &result) |
| { |
| Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); |
| if (!CheckTargetForWatchpointOperations(target, result)) |
| return false; |
| |
| Mutex::Locker locker; |
| target->GetWatchpointList().GetListMutex(locker); |
| |
| const WatchpointList &watchpoints = target->GetWatchpointList(); |
| |
| size_t num_watchpoints = watchpoints.GetSize(); |
| |
| if (num_watchpoints == 0) |
| { |
| result.AppendError("No watchpoints exist to be enabled."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| if (args.GetArgumentCount() == 0) |
| { |
| // No watchpoint selected; enable all currently set watchpoints. |
| target->EnableAllWatchpoints(); |
| result.AppendMessageWithFormat("All watchpoints enabled. (%lu watchpoints)\n", num_watchpoints); |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| } |
| else |
| { |
| // Particular watchpoints selected; enable them. |
| std::vector<uint32_t> wp_ids; |
| if (!VerifyWatchpointIDs(args, wp_ids)) |
| { |
| result.AppendError("Invalid watchpoints specification."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| int count = 0; |
| const size_t size = wp_ids.size(); |
| for (size_t i = 0; i < size; ++i) |
| if (target->EnableWatchpointByID(wp_ids[i])) |
| ++count; |
| result.AppendMessageWithFormat("%d watchpoints enabled.\n", count); |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| } |
| |
| return result.Succeeded(); |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointDisable |
| //------------------------------------------------------------------------- |
| #pragma mark Disable |
| |
| CommandObjectWatchpointDisable::CommandObjectWatchpointDisable(CommandInterpreter &interpreter) : |
| CommandObject(interpreter, |
| "watchpoint disable", |
| "Disable the specified watchpoint(s) without removing it/them. If no watchpoints are specified, disable them all.", |
| NULL) |
| { |
| CommandArgumentEntry arg; |
| CommandObject::AddIDsArgumentData(arg, eArgTypeWatchpointID, eArgTypeWatchpointIDRange); |
| // Add the entry for the first argument for this command to the object's arguments vector. |
| m_arguments.push_back(arg); |
| } |
| |
| CommandObjectWatchpointDisable::~CommandObjectWatchpointDisable() |
| { |
| } |
| |
| bool |
| CommandObjectWatchpointDisable::Execute(Args& args, CommandReturnObject &result) |
| { |
| Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); |
| if (!CheckTargetForWatchpointOperations(target, result)) |
| return false; |
| |
| Mutex::Locker locker; |
| target->GetWatchpointList().GetListMutex(locker); |
| |
| const WatchpointList &watchpoints = target->GetWatchpointList(); |
| size_t num_watchpoints = watchpoints.GetSize(); |
| |
| if (num_watchpoints == 0) |
| { |
| result.AppendError("No watchpoints exist to be disabled."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| if (args.GetArgumentCount() == 0) |
| { |
| // No watchpoint selected; disable all currently set watchpoints. |
| if (target->DisableAllWatchpoints()) |
| { |
| result.AppendMessageWithFormat("All watchpoints disabled. (%lu watchpoints)\n", num_watchpoints); |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| } |
| else |
| { |
| result.AppendError("Disable all watchpoints failed\n"); |
| result.SetStatus(eReturnStatusFailed); |
| } |
| } |
| else |
| { |
| // Particular watchpoints selected; disable them. |
| std::vector<uint32_t> wp_ids; |
| if (!VerifyWatchpointIDs(args, wp_ids)) |
| { |
| result.AppendError("Invalid watchpoints specification."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| int count = 0; |
| const size_t size = wp_ids.size(); |
| for (size_t i = 0; i < size; ++i) |
| if (target->DisableWatchpointByID(wp_ids[i])) |
| ++count; |
| result.AppendMessageWithFormat("%d watchpoints disabled.\n", count); |
| result.SetStatus(eReturnStatusSuccessFinishNoResult); |
| } |
| |
| return result.Succeeded(); |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointDelete |
| //------------------------------------------------------------------------- |
| #pragma mark Delete |
| |
| CommandObjectWatchpointDelete::CommandObjectWatchpointDelete(CommandInterpreter &interpreter) : |
| CommandObject(interpreter, |
| "watchpoint delete", |
| "Delete the specified watchpoint(s). If no watchpoints are specified, delete them all.", |
| NULL) |
| { |
| CommandArgumentEntry arg; |
| CommandObject::AddIDsArgumentData(arg, eArgTypeWatchpointID, eArgTypeWatchpointIDRange); |
| // Add the entry for the first argument for this command to the object's arguments vector. |
| m_arguments.push_back(arg); |
| } |
| |
| CommandObjectWatchpointDelete::~CommandObjectWatchpointDelete() |
| { |
| } |
| |
| bool |
| CommandObjectWatchpointDelete::Execute(Args& args, CommandReturnObject &result) |
| { |
| Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); |
| if (!CheckTargetForWatchpointOperations(target, result)) |
| return false; |
| |
| Mutex::Locker locker; |
| target->GetWatchpointList().GetListMutex(locker); |
| |
| const WatchpointList &watchpoints = target->GetWatchpointList(); |
| |
| size_t num_watchpoints = watchpoints.GetSize(); |
| |
| if (num_watchpoints == 0) |
| { |
| result.AppendError("No watchpoints exist to be deleted."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| if (args.GetArgumentCount() == 0) |
| { |
| if (!m_interpreter.Confirm("About to delete all watchpoints, do you want to do that?", true)) |
| { |
| result.AppendMessage("Operation cancelled..."); |
| } |
| else |
| { |
| target->RemoveAllWatchpoints(); |
| result.AppendMessageWithFormat("All watchpoints removed. (%lu watchpoints)\n", num_watchpoints); |
| } |
| result.SetStatus (eReturnStatusSuccessFinishNoResult); |
| } |
| else |
| { |
| // Particular watchpoints selected; delete them. |
| std::vector<uint32_t> wp_ids; |
| if (!VerifyWatchpointIDs(args, wp_ids)) |
| { |
| result.AppendError("Invalid watchpoints specification."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| int count = 0; |
| const size_t size = wp_ids.size(); |
| for (size_t i = 0; i < size; ++i) |
| if (target->RemoveWatchpointByID(wp_ids[i])) |
| ++count; |
| result.AppendMessageWithFormat("%d watchpoints deleted.\n",count); |
| result.SetStatus (eReturnStatusSuccessFinishNoResult); |
| } |
| |
| return result.Succeeded(); |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointIgnore::CommandOptions |
| //------------------------------------------------------------------------- |
| #pragma mark Ignore::CommandOptions |
| |
| CommandObjectWatchpointIgnore::CommandOptions::CommandOptions(CommandInterpreter &interpreter) : |
| Options (interpreter), |
| m_ignore_count (0) |
| { |
| } |
| |
| CommandObjectWatchpointIgnore::CommandOptions::~CommandOptions () |
| { |
| } |
| |
| OptionDefinition |
| CommandObjectWatchpointIgnore::CommandOptions::g_option_table[] = |
| { |
| { LLDB_OPT_SET_ALL, true, "ignore-count", 'i', required_argument, NULL, NULL, eArgTypeCount, "Set the number of times this watchpoint is skipped before stopping." }, |
| { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } |
| }; |
| |
| const OptionDefinition* |
| CommandObjectWatchpointIgnore::CommandOptions::GetDefinitions () |
| { |
| return g_option_table; |
| } |
| |
| Error |
| CommandObjectWatchpointIgnore::CommandOptions::SetOptionValue (uint32_t option_idx, const char *option_arg) |
| { |
| Error error; |
| char short_option = (char) m_getopt_table[option_idx].val; |
| |
| switch (short_option) |
| { |
| case 'i': |
| { |
| m_ignore_count = Args::StringToUInt32(option_arg, UINT32_MAX, 0); |
| if (m_ignore_count == UINT32_MAX) |
| error.SetErrorStringWithFormat ("invalid ignore count '%s'", option_arg); |
| } |
| break; |
| default: |
| error.SetErrorStringWithFormat ("unrecognized option '%c'", short_option); |
| break; |
| } |
| |
| return error; |
| } |
| |
| void |
| CommandObjectWatchpointIgnore::CommandOptions::OptionParsingStarting () |
| { |
| m_ignore_count = 0; |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointIgnore |
| //------------------------------------------------------------------------- |
| #pragma mark Ignore |
| |
| CommandObjectWatchpointIgnore::CommandObjectWatchpointIgnore(CommandInterpreter &interpreter) : |
| CommandObject(interpreter, |
| "watchpoint ignore", |
| "Set ignore count on the specified watchpoint(s). If no watchpoints are specified, set them all.", |
| NULL), |
| m_options (interpreter) |
| { |
| CommandArgumentEntry arg; |
| CommandObject::AddIDsArgumentData(arg, eArgTypeWatchpointID, eArgTypeWatchpointIDRange); |
| // Add the entry for the first argument for this command to the object's arguments vector. |
| m_arguments.push_back(arg); |
| } |
| |
| CommandObjectWatchpointIgnore::~CommandObjectWatchpointIgnore() |
| { |
| } |
| |
| Options * |
| CommandObjectWatchpointIgnore::GetOptions () |
| { |
| return &m_options; |
| } |
| |
| bool |
| CommandObjectWatchpointIgnore::Execute(Args& args, CommandReturnObject &result) |
| { |
| Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); |
| if (!CheckTargetForWatchpointOperations(target, result)) |
| return false; |
| |
| Mutex::Locker locker; |
| target->GetWatchpointList().GetListMutex(locker); |
| |
| const WatchpointList &watchpoints = target->GetWatchpointList(); |
| |
| size_t num_watchpoints = watchpoints.GetSize(); |
| |
| if (num_watchpoints == 0) |
| { |
| result.AppendError("No watchpoints exist to be ignored."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| if (args.GetArgumentCount() == 0) |
| { |
| target->IgnoreAllWatchpoints(m_options.m_ignore_count); |
| result.AppendMessageWithFormat("All watchpoints ignored. (%lu watchpoints)\n", num_watchpoints); |
| result.SetStatus (eReturnStatusSuccessFinishNoResult); |
| } |
| else |
| { |
| // Particular watchpoints selected; ignore them. |
| std::vector<uint32_t> wp_ids; |
| if (!VerifyWatchpointIDs(args, wp_ids)) |
| { |
| result.AppendError("Invalid watchpoints specification."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| int count = 0; |
| const size_t size = wp_ids.size(); |
| for (size_t i = 0; i < size; ++i) |
| if (target->IgnoreWatchpointByID(wp_ids[i], m_options.m_ignore_count)) |
| ++count; |
| result.AppendMessageWithFormat("%d watchpoints ignored.\n",count); |
| result.SetStatus (eReturnStatusSuccessFinishNoResult); |
| } |
| |
| return result.Succeeded(); |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointModify::CommandOptions |
| //------------------------------------------------------------------------- |
| #pragma mark Modify::CommandOptions |
| |
| CommandObjectWatchpointModify::CommandOptions::CommandOptions(CommandInterpreter &interpreter) : |
| Options (interpreter), |
| m_condition (), |
| m_condition_passed (false) |
| { |
| } |
| |
| CommandObjectWatchpointModify::CommandOptions::~CommandOptions () |
| { |
| } |
| |
| OptionDefinition |
| CommandObjectWatchpointModify::CommandOptions::g_option_table[] = |
| { |
| { LLDB_OPT_SET_ALL, false, "condition", 'c', required_argument, NULL, NULL, eArgTypeExpression, "The watchpoint stops only if this condition expression evaluates to true."}, |
| { 0, false, NULL, 0 , 0, NULL, 0, eArgTypeNone, NULL } |
| }; |
| |
| const OptionDefinition* |
| CommandObjectWatchpointModify::CommandOptions::GetDefinitions () |
| { |
| return g_option_table; |
| } |
| |
| Error |
| CommandObjectWatchpointModify::CommandOptions::SetOptionValue (uint32_t option_idx, const char *option_arg) |
| { |
| Error error; |
| char short_option = (char) m_getopt_table[option_idx].val; |
| |
| switch (short_option) |
| { |
| case 'c': |
| if (option_arg != NULL) |
| m_condition.assign (option_arg); |
| else |
| m_condition.clear(); |
| m_condition_passed = true; |
| break; |
| default: |
| error.SetErrorStringWithFormat ("unrecognized option '%c'", short_option); |
| break; |
| } |
| |
| return error; |
| } |
| |
| void |
| CommandObjectWatchpointModify::CommandOptions::OptionParsingStarting () |
| { |
| m_condition.clear(); |
| m_condition_passed = false; |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointModify |
| //------------------------------------------------------------------------- |
| #pragma mark Modify |
| |
| CommandObjectWatchpointModify::CommandObjectWatchpointModify (CommandInterpreter &interpreter) : |
| CommandObject (interpreter, |
| "watchpoint modify", |
| "Modify the options on a watchpoint or set of watchpoints in the executable. " |
| "If no watchpoint is specified, act on the last created watchpoint. " |
| "Passing an empty argument clears the modification.", |
| NULL), |
| m_options (interpreter) |
| { |
| CommandArgumentEntry arg; |
| CommandObject::AddIDsArgumentData(arg, eArgTypeWatchpointID, eArgTypeWatchpointIDRange); |
| // Add the entry for the first argument for this command to the object's arguments vector. |
| m_arguments.push_back (arg); |
| } |
| |
| CommandObjectWatchpointModify::~CommandObjectWatchpointModify () |
| { |
| } |
| |
| Options * |
| CommandObjectWatchpointModify::GetOptions () |
| { |
| return &m_options; |
| } |
| |
| bool |
| CommandObjectWatchpointModify::Execute |
| ( |
| Args& args, |
| CommandReturnObject &result |
| ) |
| { |
| Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); |
| if (!CheckTargetForWatchpointOperations(target, result)) |
| return false; |
| |
| Mutex::Locker locker; |
| target->GetWatchpointList().GetListMutex(locker); |
| |
| const WatchpointList &watchpoints = target->GetWatchpointList(); |
| |
| size_t num_watchpoints = watchpoints.GetSize(); |
| |
| if (num_watchpoints == 0) |
| { |
| result.AppendError("No watchpoints exist to be modified."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| if (args.GetArgumentCount() == 0) |
| { |
| WatchpointSP wp_sp = target->GetLastCreatedWatchpoint(); |
| wp_sp->SetCondition(m_options.m_condition.c_str()); |
| result.SetStatus (eReturnStatusSuccessFinishNoResult); |
| } |
| else |
| { |
| // Particular watchpoints selected; set condition on them. |
| std::vector<uint32_t> wp_ids; |
| if (!VerifyWatchpointIDs(args, wp_ids)) |
| { |
| result.AppendError("Invalid watchpoints specification."); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| int count = 0; |
| const size_t size = wp_ids.size(); |
| for (size_t i = 0; i < size; ++i) |
| { |
| WatchpointSP wp_sp = watchpoints.FindByID(wp_ids[i]); |
| if (wp_sp) |
| { |
| wp_sp->SetCondition(m_options.m_condition.c_str()); |
| ++count; |
| } |
| } |
| result.AppendMessageWithFormat("%d watchpoints modified.\n",count); |
| result.SetStatus (eReturnStatusSuccessFinishNoResult); |
| } |
| |
| return result.Succeeded(); |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointSet |
| //------------------------------------------------------------------------- |
| |
| CommandObjectWatchpointSet::CommandObjectWatchpointSet (CommandInterpreter &interpreter) : |
| CommandObjectMultiword (interpreter, |
| "watchpoint set", |
| "A set of commands for setting a watchpoint.", |
| "watchpoint set <subcommand> [<subcommand-options>]") |
| { |
| |
| LoadSubCommand ("variable", CommandObjectSP (new CommandObjectWatchpointSetVariable (interpreter))); |
| LoadSubCommand ("expression", CommandObjectSP (new CommandObjectWatchpointSetExpression (interpreter))); |
| } |
| |
| CommandObjectWatchpointSet::~CommandObjectWatchpointSet () |
| { |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointSetVariable |
| //------------------------------------------------------------------------- |
| #pragma mark Set |
| |
| CommandObjectWatchpointSetVariable::CommandObjectWatchpointSetVariable (CommandInterpreter &interpreter) : |
| CommandObject (interpreter, |
| "watchpoint set variable", |
| "Set a watchpoint on a variable. " |
| "Use the '-w' option to specify the type of watchpoint and " |
| "the '-x' option to specify the byte size to watch for. " |
| "If no '-w' option is specified, it defaults to read_write. " |
| "If no '-x' option is specified, it defaults to the variable's " |
| "byte size. " |
| "Note that hardware resources for watching are often limited.", |
| NULL, |
| eFlagProcessMustBeLaunched | eFlagProcessMustBePaused), |
| m_option_group (interpreter), |
| m_option_watchpoint () |
| { |
| SetHelpLong( |
| "Examples: \n\ |
| \n\ |
| watchpoint set variable -w read_wriate my_global_var \n\ |
| # Watch my_global_var for read/write access, with the region to watch corresponding to the byte size of the data type.\n"); |
| |
| CommandArgumentEntry arg; |
| CommandArgumentData var_name_arg; |
| |
| // Define the only variant of this arg. |
| var_name_arg.arg_type = eArgTypeVarName; |
| var_name_arg.arg_repetition = eArgRepeatPlain; |
| |
| // Push the variant into the argument entry. |
| arg.push_back (var_name_arg); |
| |
| // Push the data for the only argument into the m_arguments vector. |
| m_arguments.push_back (arg); |
| |
| // Absorb the '-w' and '-x' options into our option group. |
| m_option_group.Append (&m_option_watchpoint, LLDB_OPT_SET_ALL, LLDB_OPT_SET_1); |
| m_option_group.Finalize(); |
| } |
| |
| CommandObjectWatchpointSetVariable::~CommandObjectWatchpointSetVariable () |
| { |
| } |
| |
| Options * |
| CommandObjectWatchpointSetVariable::GetOptions () |
| { |
| return &m_option_group; |
| } |
| |
| bool |
| CommandObjectWatchpointSetVariable::Execute |
| ( |
| Args& command, |
| CommandReturnObject &result |
| ) |
| { |
| ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); |
| StackFrame *frame = exe_ctx.GetFramePtr(); |
| if (frame == NULL) |
| { |
| result.AppendError ("you must be stopped in a valid stack frame to set a watchpoint."); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| |
| // If no argument is present, issue an error message. There's no way to set a watchpoint. |
| if (command.GetArgumentCount() <= 0) |
| { |
| result.GetErrorStream().Printf("error: required argument missing; specify your program variable to watch for\n"); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| // If no '-w' is specified, default to '-w read_write'. |
| if (!m_option_watchpoint.watch_type_specified) |
| { |
| m_option_watchpoint.watch_type = OptionGroupWatchpoint::eWatchReadWrite; |
| } |
| |
| // We passed the sanity check for the command. |
| // Proceed to set the watchpoint now. |
| lldb::addr_t addr = 0; |
| size_t size = 0; |
| |
| VariableSP var_sp; |
| ValueObjectSP valobj_sp; |
| Stream &output_stream = result.GetOutputStream(); |
| |
| // A simple watch variable gesture allows only one argument. |
| if (command.GetArgumentCount() != 1) { |
| result.GetErrorStream().Printf("error: specify exactly one variable to watch for\n"); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| // Things have checked out ok... |
| Error error; |
| uint32_t expr_path_options = StackFrame::eExpressionPathOptionCheckPtrVsMember; |
| valobj_sp = frame->GetValueForVariableExpressionPath (command.GetArgumentAtIndex(0), |
| eNoDynamicValues, |
| expr_path_options, |
| var_sp, |
| error); |
| if (valobj_sp) { |
| AddressType addr_type; |
| addr = valobj_sp->GetAddressOf(false, &addr_type); |
| if (addr_type == eAddressTypeLoad) { |
| // We're in business. |
| // Find out the size of this variable. |
| size = m_option_watchpoint.watch_size == 0 ? valobj_sp->GetByteSize() |
| : m_option_watchpoint.watch_size; |
| } |
| } else { |
| const char *error_cstr = error.AsCString(NULL); |
| if (error_cstr) |
| result.GetErrorStream().Printf("error: %s\n", error_cstr); |
| else |
| result.GetErrorStream().Printf ("error: unable to find any variable expression path that matches '%s'\n", |
| command.GetArgumentAtIndex(0)); |
| return false; |
| } |
| |
| // Now it's time to create the watchpoint. |
| uint32_t watch_type = m_option_watchpoint.watch_type; |
| Watchpoint *wp = exe_ctx.GetTargetRef().CreateWatchpoint(addr, size, watch_type).get(); |
| if (wp) { |
| if (var_sp && var_sp->GetDeclaration().GetFile()) { |
| StreamString ss; |
| // True to show fullpath for declaration file. |
| var_sp->GetDeclaration().DumpStopContext(&ss, true); |
| wp->SetDeclInfo(ss.GetString()); |
| } |
| StreamString ss; |
| output_stream.Printf("Watchpoint created: "); |
| wp->GetDescription(&output_stream, lldb::eDescriptionLevelFull); |
| output_stream.EOL(); |
| result.SetStatus(eReturnStatusSuccessFinishResult); |
| } else { |
| result.AppendErrorWithFormat("Watchpoint creation failed (addr=0x%llx, size=%lu).\n", |
| addr, size); |
| result.SetStatus(eReturnStatusFailed); |
| } |
| |
| return result.Succeeded(); |
| } |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectWatchpointSetExpression |
| //------------------------------------------------------------------------- |
| #pragma mark Set |
| |
| CommandObjectWatchpointSetExpression::CommandObjectWatchpointSetExpression (CommandInterpreter &interpreter) : |
| CommandObject (interpreter, |
| "watchpoint set expression", |
| "Set a watchpoint on an address by supplying an expression. " |
| "Use the '-w' option to specify the type of watchpoint and " |
| "the '-x' option to specify the byte size to watch for. " |
| "If no '-w' option is specified, it defaults to read_write. " |
| "If no '-x' option is specified, it defaults to the target's " |
| "pointer byte size. " |
| "Note that hardware resources for watching are often limited.", |
| NULL, |
| eFlagProcessMustBeLaunched | eFlagProcessMustBePaused), |
| m_option_group (interpreter), |
| m_option_watchpoint () |
| { |
| SetHelpLong( |
| "Examples: \n\ |
| \n\ |
| watchpoint set expression -w write -x 1 -- foo + 32\n\ |
| # Watch write access for the 1-byte region pointed to by the address 'foo + 32'.\n"); |
| |
| CommandArgumentEntry arg; |
| CommandArgumentData expression_arg; |
| |
| // Define the only variant of this arg. |
| expression_arg.arg_type = eArgTypeExpression; |
| expression_arg.arg_repetition = eArgRepeatPlain; |
| |
| // Push the only variant into the argument entry. |
| arg.push_back (expression_arg); |
| |
| // Push the data for the only argument into the m_arguments vector. |
| m_arguments.push_back (arg); |
| |
| // Absorb the '-w' and '-x' options into our option group. |
| m_option_group.Append (&m_option_watchpoint, LLDB_OPT_SET_ALL, LLDB_OPT_SET_1); |
| m_option_group.Finalize(); |
| } |
| |
| CommandObjectWatchpointSetExpression::~CommandObjectWatchpointSetExpression () |
| { |
| } |
| |
| Options * |
| CommandObjectWatchpointSetExpression::GetOptions () |
| { |
| return &m_option_group; |
| } |
| |
| #include "llvm/ADT/StringRef.h" |
| static inline void StripLeadingSpaces(llvm::StringRef &Str) |
| { |
| while (!Str.empty() && isspace(Str[0])) |
| Str = Str.substr(1); |
| } |
| static inline llvm::StringRef StripOptionTerminator(llvm::StringRef &Str, bool with_dash_w, bool with_dash_x) |
| { |
| llvm::StringRef ExprStr = Str; |
| |
| // Get rid of the leading spaces first. |
| StripLeadingSpaces(ExprStr); |
| |
| // If there's no '-w' and no '-x', we can just return. |
| if (!with_dash_w && !with_dash_x) |
| return ExprStr; |
| |
| // Otherwise, split on the "--" option terminator string, and return the rest of the string. |
| ExprStr = ExprStr.split("--").second; |
| StripLeadingSpaces(ExprStr); |
| return ExprStr; |
| } |
| bool |
| CommandObjectWatchpointSetExpression::ExecuteRawCommandString |
| ( |
| const char *raw_command, |
| CommandReturnObject &result |
| ) |
| { |
| Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); |
| ExecutionContext exe_ctx(m_interpreter.GetExecutionContext()); |
| StackFrame *frame = exe_ctx.GetFramePtr(); |
| if (frame == NULL) |
| { |
| result.AppendError ("you must be stopped in a valid stack frame to set a watchpoint."); |
| result.SetStatus (eReturnStatusFailed); |
| return false; |
| } |
| |
| Args command(raw_command); |
| |
| // Process possible options. |
| if (!ParseOptions (command, result)) |
| return false; |
| |
| // If no argument is present, issue an error message. There's no way to set a watchpoint. |
| if (command.GetArgumentCount() <= 0) |
| { |
| result.GetErrorStream().Printf("error: required argument missing; specify an expression to evaulate into the addres to watch for\n"); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| bool with_dash_w = m_option_watchpoint.watch_type_specified; |
| bool with_dash_x = (m_option_watchpoint.watch_size != 0); |
| |
| // If no '-w' is specified, default to '-w read_write'. |
| if (!with_dash_w) |
| { |
| m_option_watchpoint.watch_type = OptionGroupWatchpoint::eWatchReadWrite; |
| } |
| |
| // We passed the sanity check for the command. |
| // Proceed to set the watchpoint now. |
| lldb::addr_t addr = 0; |
| size_t size = 0; |
| |
| VariableSP var_sp; |
| ValueObjectSP valobj_sp; |
| Stream &output_stream = result.GetOutputStream(); |
| |
| // We will process the raw command string to rid of the '-w', '-x', or '--' |
| llvm::StringRef raw_expr_str(raw_command); |
| std::string expr_str = StripOptionTerminator(raw_expr_str, with_dash_w, with_dash_x).str(); |
| |
| // Sanity check for when the user forgets to terminate the option strings with a '--'. |
| if ((with_dash_w || with_dash_w) && expr_str.empty()) |
| { |
| result.GetErrorStream().Printf("error: did you forget to enter the option terminator string \"--\"?\n"); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| // Use expression evaluation to arrive at the address to watch. |
| const bool coerce_to_id = true; |
| const bool unwind_on_error = true; |
| const bool keep_in_memory = false; |
| ExecutionResults expr_result = target->EvaluateExpression (expr_str.c_str(), |
| frame, |
| eExecutionPolicyOnlyWhenNeeded, |
| coerce_to_id, |
| unwind_on_error, |
| keep_in_memory, |
| eNoDynamicValues, |
| valobj_sp); |
| if (expr_result != eExecutionCompleted) { |
| result.GetErrorStream().Printf("error: expression evaluation of address to watch failed\n"); |
| result.GetErrorStream().Printf("expression evaluated: %s\n", expr_str.c_str()); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| |
| // Get the address to watch. |
| addr = valobj_sp->GetValueAsUnsigned(0); |
| if (!addr) { |
| result.GetErrorStream().Printf("error: expression did not evaluate to an address\n"); |
| result.SetStatus(eReturnStatusFailed); |
| return false; |
| } |
| size = with_dash_x ? m_option_watchpoint.watch_size |
| : target->GetArchitecture().GetAddressByteSize(); |
| |
| // Now it's time to create the watchpoint. |
| uint32_t watch_type = m_option_watchpoint.watch_type; |
| Watchpoint *wp = exe_ctx.GetTargetRef().CreateWatchpoint(addr, size, watch_type).get(); |
| if (wp) { |
| if (var_sp && var_sp->GetDeclaration().GetFile()) { |
| StreamString ss; |
| // True to show fullpath for declaration file. |
| var_sp->GetDeclaration().DumpStopContext(&ss, true); |
| wp->SetDeclInfo(ss.GetString()); |
| } |
| StreamString ss; |
| output_stream.Printf("Watchpoint created: "); |
| wp->GetDescription(&output_stream, lldb::eDescriptionLevelFull); |
| output_stream.EOL(); |
| result.SetStatus(eReturnStatusSuccessFinishResult); |
| } else { |
| result.AppendErrorWithFormat("Watchpoint creation failed (addr=0x%llx, size=%lu).\n", |
| addr, size); |
| result.SetStatus(eReturnStatusFailed); |
| } |
| |
| return result.Succeeded(); |
| } |
