| //===-- Debugger.cpp --------------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/Core/Debugger.h" |
| |
| #include "lldb/Breakpoint/Breakpoint.h" |
| #include "lldb/Core/FormatEntity.h" |
| #include "lldb/Core/Mangled.h" |
| #include "lldb/Core/ModuleList.h" |
| #include "lldb/Core/PluginManager.h" |
| #include "lldb/Core/StreamAsynchronousIO.h" |
| #include "lldb/Core/StreamFile.h" |
| #include "lldb/DataFormatters/DataVisualization.h" |
| #include "lldb/Expression/REPL.h" |
| #include "lldb/Host/File.h" |
| #include "lldb/Host/FileSystem.h" |
| #include "lldb/Host/HostInfo.h" |
| #include "lldb/Host/Terminal.h" |
| #include "lldb/Host/ThreadLauncher.h" |
| #include "lldb/Interpreter/CommandInterpreter.h" |
| #include "lldb/Interpreter/OptionValue.h" |
| #include "lldb/Interpreter/OptionValueProperties.h" |
| #include "lldb/Interpreter/OptionValueSInt64.h" |
| #include "lldb/Interpreter/OptionValueString.h" |
| #include "lldb/Interpreter/Property.h" |
| #include "lldb/Interpreter/ScriptInterpreter.h" |
| #include "lldb/Symbol/Function.h" |
| #include "lldb/Symbol/Symbol.h" |
| #include "lldb/Symbol/SymbolContext.h" |
| #include "lldb/Target/Language.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/StructuredDataPlugin.h" |
| #include "lldb/Target/Target.h" |
| #include "lldb/Target/TargetList.h" |
| #include "lldb/Target/Thread.h" |
| #include "lldb/Target/ThreadList.h" |
| #include "lldb/Utility/AnsiTerminal.h" |
| #include "lldb/Utility/Event.h" |
| #include "lldb/Utility/Listener.h" |
| #include "lldb/Utility/Log.h" |
| #include "lldb/Utility/Reproducer.h" |
| #include "lldb/Utility/State.h" |
| #include "lldb/Utility/Stream.h" |
| #include "lldb/Utility/StreamCallback.h" |
| #include "lldb/Utility/StreamString.h" |
| |
| #if defined(_WIN32) |
| #include "lldb/Host/windows/PosixApi.h" |
| #include "lldb/Host/windows/windows.h" |
| #endif |
| |
| #include "llvm/ADT/None.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/ADT/StringRef.h" |
| #include "llvm/ADT/iterator.h" |
| #include "llvm/Support/DynamicLibrary.h" |
| #include "llvm/Support/FileSystem.h" |
| #include "llvm/Support/Process.h" |
| #include "llvm/Support/Threading.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| #include <list> |
| #include <memory> |
| #include <mutex> |
| #include <set> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <string> |
| #include <system_error> |
| |
| namespace lldb_private { |
| class Address; |
| } |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| static lldb::user_id_t g_unique_id = 1; |
| static size_t g_debugger_event_thread_stack_bytes = 8 * 1024 * 1024; |
| |
| #pragma mark Static Functions |
| |
| typedef std::vector<DebuggerSP> DebuggerList; |
| static std::recursive_mutex *g_debugger_list_mutex_ptr = |
| nullptr; // NOTE: intentional leak to avoid issues with C++ destructor chain |
| static DebuggerList *g_debugger_list_ptr = |
| nullptr; // NOTE: intentional leak to avoid issues with C++ destructor chain |
| |
| static constexpr OptionEnumValueElement g_show_disassembly_enum_values[] = { |
| {Debugger::eStopDisassemblyTypeNever, "never", |
| "Never show disassembly when displaying a stop context."}, |
| {Debugger::eStopDisassemblyTypeNoDebugInfo, "no-debuginfo", |
| "Show disassembly when there is no debug information."}, |
| {Debugger::eStopDisassemblyTypeNoSource, "no-source", |
| "Show disassembly when there is no source information, or the source file " |
| "is missing when displaying a stop context."}, |
| {Debugger::eStopDisassemblyTypeAlways, "always", |
| "Always show disassembly when displaying a stop context."} }; |
| |
| static constexpr OptionEnumValueElement g_language_enumerators[] = { |
| {eScriptLanguageNone, "none", "Disable scripting languages."}, |
| {eScriptLanguagePython, "python", |
| "Select python as the default scripting language."}, |
| {eScriptLanguageDefault, "default", |
| "Select the lldb default as the default scripting language."} }; |
| |
| #define MODULE_WITH_FUNC \ |
| "{ " \ |
| "${module.file.basename}{`${function.name-with-args}" \ |
| "{${frame.no-debug}${function.pc-offset}}}}" |
| |
| #define MODULE_WITH_FUNC_NO_ARGS \ |
| "{ " \ |
| "${module.file.basename}{`${function.name-without-args}" \ |
| "{${frame.no-debug}${function.pc-offset}}}}" |
| |
| #define FILE_AND_LINE \ |
| "{ at ${line.file.basename}:${line.number}{:${line.column}}}" |
| #define IS_OPTIMIZED "{${function.is-optimized} [opt]}" |
| |
| #define IS_ARTIFICIAL "{${frame.is-artificial} [artificial]}" |
| |
| #define DEFAULT_THREAD_FORMAT \ |
| "thread #${thread.index}: tid = ${thread.id%tid}" \ |
| "{, ${frame.pc}}" MODULE_WITH_FUNC FILE_AND_LINE \ |
| "{, name = '${thread.name}'}" \ |
| "{, queue = '${thread.queue}'}" \ |
| "{, activity = '${thread.info.activity.name}'}" \ |
| "{, ${thread.info.trace_messages} messages}" \ |
| "{, stop reason = ${thread.stop-reason}}" \ |
| "{\\nReturn value: ${thread.return-value}}" \ |
| "{\\nCompleted expression: ${thread.completed-expression}}" \ |
| "\\n" |
| |
| #define DEFAULT_THREAD_STOP_FORMAT \ |
| "thread #${thread.index}{, name = '${thread.name}'}" \ |
| "{, queue = '${thread.queue}'}" \ |
| "{, activity = '${thread.info.activity.name}'}" \ |
| "{, ${thread.info.trace_messages} messages}" \ |
| "{, stop reason = ${thread.stop-reason}}" \ |
| "{\\nReturn value: ${thread.return-value}}" \ |
| "{\\nCompleted expression: ${thread.completed-expression}}" \ |
| "\\n" |
| |
| #define DEFAULT_FRAME_FORMAT \ |
| "frame #${frame.index}: ${frame.pc}" MODULE_WITH_FUNC FILE_AND_LINE \ |
| IS_OPTIMIZED IS_ARTIFICIAL "\\n" |
| |
| #define DEFAULT_FRAME_FORMAT_NO_ARGS \ |
| "frame #${frame.index}: ${frame.pc}" MODULE_WITH_FUNC_NO_ARGS FILE_AND_LINE \ |
| IS_OPTIMIZED IS_ARTIFICIAL "\\n" |
| |
| // Three parts to this disassembly format specification: |
| // 1. If this is a new function/symbol (no previous symbol/function), print |
| // dylib`funcname:\n |
| // 2. If this is a symbol context change (different from previous |
| // symbol/function), print |
| // dylib`funcname:\n |
| // 3. print |
| // address <+offset>: |
| #define DEFAULT_DISASSEMBLY_FORMAT \ |
| "{${function.initial-function}{${module.file.basename}`}{${function.name-" \ |
| "without-args}}:\\n}{${function.changed}\\n{${module.file.basename}`}{${" \ |
| "function.name-without-args}}:\\n}{${current-pc-arrow} " \ |
| "}${addr-file-or-load}{ " \ |
| "<${function.concrete-only-addr-offset-no-padding}>}: " |
| |
| // gdb's disassembly format can be emulated with ${current-pc-arrow}${addr- |
| // file-or-load}{ <${function.name-without-args}${function.concrete-only-addr- |
| // offset-no-padding}>}: |
| |
| // lldb's original format for disassembly would look like this format string - |
| // {${function.initial-function}{${module.file.basename}`}{${function.name- |
| // without- |
| // args}}:\n}{${function.changed}\n{${module.file.basename}`}{${function.name- |
| // without-args}}:\n}{${current-pc-arrow} }{${addr-file-or-load}}: |
| |
| static constexpr OptionEnumValueElement s_stop_show_column_values[] = { |
| {eStopShowColumnAnsiOrCaret, "ansi-or-caret", |
| "Highlight the stop column with ANSI terminal codes when color/ANSI mode " |
| "is enabled; otherwise, fall back to using a text-only caret (^) as if " |
| "\"caret-only\" mode was selected."}, |
| {eStopShowColumnAnsi, "ansi", "Highlight the stop column with ANSI " |
| "terminal codes when running LLDB with " |
| "color/ANSI enabled."}, |
| {eStopShowColumnCaret, "caret", |
| "Highlight the stop column with a caret character (^) underneath the stop " |
| "column. This method introduces a new line in source listings that " |
| "display thread stop locations."}, |
| {eStopShowColumnNone, "none", "Do not highlight the stop column."}}; |
| |
| static constexpr PropertyDefinition g_properties[] = { |
| {"auto-confirm", OptionValue::eTypeBoolean, true, false, nullptr, {}, |
| "If true all confirmation prompts will receive their default reply."}, |
| {"disassembly-format", OptionValue::eTypeFormatEntity, true, 0, |
| DEFAULT_DISASSEMBLY_FORMAT, {}, |
| "The default disassembly format " |
| "string to use when disassembling " |
| "instruction sequences."}, |
| {"frame-format", OptionValue::eTypeFormatEntity, true, 0, |
| DEFAULT_FRAME_FORMAT, {}, |
| "The default frame format string to use " |
| "when displaying stack frame information " |
| "for threads."}, |
| {"notify-void", OptionValue::eTypeBoolean, true, false, nullptr, {}, |
| "Notify the user explicitly if an expression returns void (default: " |
| "false)."}, |
| {"prompt", OptionValue::eTypeString, true, |
| OptionValueString::eOptionEncodeCharacterEscapeSequences, "(lldb) ", {}, |
| "The debugger command line prompt displayed for the user."}, |
| {"script-lang", OptionValue::eTypeEnum, true, eScriptLanguagePython, |
| nullptr, OptionEnumValues(g_language_enumerators), |
| "The script language to be used for evaluating user-written scripts."}, |
| {"stop-disassembly-count", OptionValue::eTypeSInt64, true, 4, nullptr, {}, |
| "The number of disassembly lines to show when displaying a " |
| "stopped context."}, |
| {"stop-disassembly-display", OptionValue::eTypeEnum, true, |
| Debugger::eStopDisassemblyTypeNoDebugInfo, nullptr, |
| OptionEnumValues(g_show_disassembly_enum_values), |
| "Control when to display disassembly when displaying a stopped context."}, |
| {"stop-line-count-after", OptionValue::eTypeSInt64, true, 3, nullptr, {}, |
| "The number of sources lines to display that come after the " |
| "current source line when displaying a stopped context."}, |
| {"stop-line-count-before", OptionValue::eTypeSInt64, true, 3, nullptr, {}, |
| "The number of sources lines to display that come before the " |
| "current source line when displaying a stopped context."}, |
| {"highlight-source", OptionValue::eTypeBoolean, true, true, nullptr, {}, |
| "If true, LLDB will highlight the displayed source code."}, |
| {"stop-show-column", OptionValue::eTypeEnum, false, |
| eStopShowColumnAnsiOrCaret, nullptr, OptionEnumValues(s_stop_show_column_values), |
| "If true, LLDB will use the column information from the debug info to " |
| "mark the current position when displaying a stopped context."}, |
| {"stop-show-column-ansi-prefix", OptionValue::eTypeString, true, 0, |
| "${ansi.underline}", {}, |
| "When displaying the column marker in a color-enabled (i.e. ANSI) " |
| "terminal, use the ANSI terminal code specified in this format at the " |
| "immediately before the column to be marked."}, |
| {"stop-show-column-ansi-suffix", OptionValue::eTypeString, true, 0, |
| "${ansi.normal}", {}, |
| "When displaying the column marker in a color-enabled (i.e. ANSI) " |
| "terminal, use the ANSI terminal code specified in this format " |
| "immediately after the column to be marked."}, |
| {"term-width", OptionValue::eTypeSInt64, true, 80, nullptr, {}, |
| "The maximum number of columns to use for displaying text."}, |
| {"thread-format", OptionValue::eTypeFormatEntity, true, 0, |
| DEFAULT_THREAD_FORMAT, {}, |
| "The default thread format string to use " |
| "when displaying thread information."}, |
| {"thread-stop-format", OptionValue::eTypeFormatEntity, true, 0, |
| DEFAULT_THREAD_STOP_FORMAT, {}, |
| "The default thread format " |
| "string to use when displaying thread " |
| "information as part of the stop display."}, |
| {"use-external-editor", OptionValue::eTypeBoolean, true, false, nullptr, {}, |
| "Whether to use an external editor or not."}, |
| {"use-color", OptionValue::eTypeBoolean, true, true, nullptr, {}, |
| "Whether to use Ansi color codes or not."}, |
| {"auto-one-line-summaries", OptionValue::eTypeBoolean, true, true, nullptr, |
| {}, |
| "If true, LLDB will automatically display small structs in " |
| "one-liner format (default: true)."}, |
| {"auto-indent", OptionValue::eTypeBoolean, true, true, nullptr, {}, |
| "If true, LLDB will auto indent/outdent code. Currently only supported in " |
| "the REPL (default: true)."}, |
| {"print-decls", OptionValue::eTypeBoolean, true, true, nullptr, {}, |
| "If true, LLDB will print the values of variables declared in an " |
| "expression. Currently only supported in the REPL (default: true)."}, |
| {"tab-size", OptionValue::eTypeUInt64, true, 4, nullptr, {}, |
| "The tab size to use when indenting code in multi-line input mode " |
| "(default: 4)."}, |
| {"escape-non-printables", OptionValue::eTypeBoolean, true, true, nullptr, |
| {}, |
| "If true, LLDB will automatically escape non-printable and " |
| "escape characters when formatting strings."}, |
| {"frame-format-unique", OptionValue::eTypeFormatEntity, true, 0, |
| DEFAULT_FRAME_FORMAT_NO_ARGS, {}, |
| "The default frame format string to use when displaying stack frame" |
| "information for threads from thread backtrace unique."}}; |
| |
| enum { |
| ePropertyAutoConfirm = 0, |
| ePropertyDisassemblyFormat, |
| ePropertyFrameFormat, |
| ePropertyNotiftVoid, |
| ePropertyPrompt, |
| ePropertyScriptLanguage, |
| ePropertyStopDisassemblyCount, |
| ePropertyStopDisassemblyDisplay, |
| ePropertyStopLineCountAfter, |
| ePropertyStopLineCountBefore, |
| ePropertyHighlightSource, |
| ePropertyStopShowColumn, |
| ePropertyStopShowColumnAnsiPrefix, |
| ePropertyStopShowColumnAnsiSuffix, |
| ePropertyTerminalWidth, |
| ePropertyThreadFormat, |
| ePropertyThreadStopFormat, |
| ePropertyUseExternalEditor, |
| ePropertyUseColor, |
| ePropertyAutoOneLineSummaries, |
| ePropertyAutoIndent, |
| ePropertyPrintDecls, |
| ePropertyTabSize, |
| ePropertyEscapeNonPrintables, |
| ePropertyFrameFormatUnique, |
| }; |
| |
| LoadPluginCallbackType Debugger::g_load_plugin_callback = nullptr; |
| |
| Status Debugger::SetPropertyValue(const ExecutionContext *exe_ctx, |
| VarSetOperationType op, |
| llvm::StringRef property_path, |
| llvm::StringRef value) { |
| bool is_load_script = (property_path == "target.load-script-from-symbol-file"); |
| bool is_escape_non_printables = (property_path == "escape-non-printables"); |
| TargetSP target_sp; |
| LoadScriptFromSymFile load_script_old_value; |
| if (is_load_script && exe_ctx->GetTargetSP()) { |
| target_sp = exe_ctx->GetTargetSP(); |
| load_script_old_value = |
| target_sp->TargetProperties::GetLoadScriptFromSymbolFile(); |
| } |
| Status error(Properties::SetPropertyValue(exe_ctx, op, property_path, value)); |
| if (error.Success()) { |
| // FIXME it would be nice to have "on-change" callbacks for properties |
| if (property_path == g_properties[ePropertyPrompt].name) { |
| llvm::StringRef new_prompt = GetPrompt(); |
| std::string str = lldb_utility::ansi::FormatAnsiTerminalCodes( |
| new_prompt, GetUseColor()); |
| if (str.length()) |
| new_prompt = str; |
| GetCommandInterpreter().UpdatePrompt(new_prompt); |
| auto bytes = llvm::make_unique<EventDataBytes>(new_prompt); |
| auto prompt_change_event_sp = std::make_shared<Event>( |
| CommandInterpreter::eBroadcastBitResetPrompt, bytes.release()); |
| GetCommandInterpreter().BroadcastEvent(prompt_change_event_sp); |
| } else if (property_path == g_properties[ePropertyUseColor].name) { |
| // use-color changed. Ping the prompt so it can reset the ansi terminal |
| // codes. |
| SetPrompt(GetPrompt()); |
| } else if (is_load_script && target_sp && |
| load_script_old_value == eLoadScriptFromSymFileWarn) { |
| if (target_sp->TargetProperties::GetLoadScriptFromSymbolFile() == |
| eLoadScriptFromSymFileTrue) { |
| std::list<Status> errors; |
| StreamString feedback_stream; |
| if (!target_sp->LoadScriptingResources(errors, &feedback_stream)) { |
| StreamFileSP stream_sp(GetErrorFile()); |
| if (stream_sp) { |
| for (auto error : errors) { |
| stream_sp->Printf("%s\n", error.AsCString()); |
| } |
| if (feedback_stream.GetSize()) |
| stream_sp->PutCString(feedback_stream.GetString()); |
| } |
| } |
| } |
| } else if (is_escape_non_printables) { |
| DataVisualization::ForceUpdate(); |
| } |
| } |
| return error; |
| } |
| |
| bool Debugger::GetAutoConfirm() const { |
| const uint32_t idx = ePropertyAutoConfirm; |
| return m_collection_sp->GetPropertyAtIndexAsBoolean( |
| nullptr, idx, g_properties[idx].default_uint_value != 0); |
| } |
| |
| const FormatEntity::Entry *Debugger::GetDisassemblyFormat() const { |
| const uint32_t idx = ePropertyDisassemblyFormat; |
| return m_collection_sp->GetPropertyAtIndexAsFormatEntity(nullptr, idx); |
| } |
| |
| const FormatEntity::Entry *Debugger::GetFrameFormat() const { |
| const uint32_t idx = ePropertyFrameFormat; |
| return m_collection_sp->GetPropertyAtIndexAsFormatEntity(nullptr, idx); |
| } |
| |
| const FormatEntity::Entry *Debugger::GetFrameFormatUnique() const { |
| const uint32_t idx = ePropertyFrameFormatUnique; |
| return m_collection_sp->GetPropertyAtIndexAsFormatEntity(nullptr, idx); |
| } |
| |
| bool Debugger::GetNotifyVoid() const { |
| const uint32_t idx = ePropertyNotiftVoid; |
| return m_collection_sp->GetPropertyAtIndexAsBoolean( |
| nullptr, idx, g_properties[idx].default_uint_value != 0); |
| } |
| |
| llvm::StringRef Debugger::GetPrompt() const { |
| const uint32_t idx = ePropertyPrompt; |
| return m_collection_sp->GetPropertyAtIndexAsString( |
| nullptr, idx, g_properties[idx].default_cstr_value); |
| } |
| |
| void Debugger::SetPrompt(llvm::StringRef p) { |
| const uint32_t idx = ePropertyPrompt; |
| m_collection_sp->SetPropertyAtIndexAsString(nullptr, idx, p); |
| llvm::StringRef new_prompt = GetPrompt(); |
| std::string str = |
| lldb_utility::ansi::FormatAnsiTerminalCodes(new_prompt, GetUseColor()); |
| if (str.length()) |
| new_prompt = str; |
| GetCommandInterpreter().UpdatePrompt(new_prompt); |
| } |
| |
| llvm::StringRef Debugger::GetReproducerPath() const { |
| auto &r = repro::Reproducer::Instance(); |
| return r.GetReproducerPath().GetCString(); |
| } |
| |
| const FormatEntity::Entry *Debugger::GetThreadFormat() const { |
| const uint32_t idx = ePropertyThreadFormat; |
| return m_collection_sp->GetPropertyAtIndexAsFormatEntity(nullptr, idx); |
| } |
| |
| const FormatEntity::Entry *Debugger::GetThreadStopFormat() const { |
| const uint32_t idx = ePropertyThreadStopFormat; |
| return m_collection_sp->GetPropertyAtIndexAsFormatEntity(nullptr, idx); |
| } |
| |
| lldb::ScriptLanguage Debugger::GetScriptLanguage() const { |
| const uint32_t idx = ePropertyScriptLanguage; |
| return (lldb::ScriptLanguage)m_collection_sp->GetPropertyAtIndexAsEnumeration( |
| nullptr, idx, g_properties[idx].default_uint_value); |
| } |
| |
| bool Debugger::SetScriptLanguage(lldb::ScriptLanguage script_lang) { |
| const uint32_t idx = ePropertyScriptLanguage; |
| return m_collection_sp->SetPropertyAtIndexAsEnumeration(nullptr, idx, |
| script_lang); |
| } |
| |
| uint32_t Debugger::GetTerminalWidth() const { |
| const uint32_t idx = ePropertyTerminalWidth; |
| return m_collection_sp->GetPropertyAtIndexAsSInt64( |
| nullptr, idx, g_properties[idx].default_uint_value); |
| } |
| |
| bool Debugger::SetTerminalWidth(uint32_t term_width) { |
| const uint32_t idx = ePropertyTerminalWidth; |
| return m_collection_sp->SetPropertyAtIndexAsSInt64(nullptr, idx, term_width); |
| } |
| |
| bool Debugger::GetUseExternalEditor() const { |
| const uint32_t idx = ePropertyUseExternalEditor; |
| return m_collection_sp->GetPropertyAtIndexAsBoolean( |
| nullptr, idx, g_properties[idx].default_uint_value != 0); |
| } |
| |
| bool Debugger::SetUseExternalEditor(bool b) { |
| const uint32_t idx = ePropertyUseExternalEditor; |
| return m_collection_sp->SetPropertyAtIndexAsBoolean(nullptr, idx, b); |
| } |
| |
| bool Debugger::GetUseColor() const { |
| const uint32_t idx = ePropertyUseColor; |
| return m_collection_sp->GetPropertyAtIndexAsBoolean( |
| nullptr, idx, g_properties[idx].default_uint_value != 0); |
| } |
| |
| bool Debugger::SetUseColor(bool b) { |
| const uint32_t idx = ePropertyUseColor; |
| bool ret = m_collection_sp->SetPropertyAtIndexAsBoolean(nullptr, idx, b); |
| SetPrompt(GetPrompt()); |
| return ret; |
| } |
| |
| bool Debugger::GetHighlightSource() const { |
| const uint32_t idx = ePropertyHighlightSource; |
| return m_collection_sp->GetPropertyAtIndexAsBoolean( |
| nullptr, idx, g_properties[idx].default_uint_value); |
| } |
| |
| StopShowColumn Debugger::GetStopShowColumn() const { |
| const uint32_t idx = ePropertyStopShowColumn; |
| return (lldb::StopShowColumn)m_collection_sp->GetPropertyAtIndexAsEnumeration( |
| nullptr, idx, g_properties[idx].default_uint_value); |
| } |
| |
| llvm::StringRef Debugger::GetStopShowColumnAnsiPrefix() const { |
| const uint32_t idx = ePropertyStopShowColumnAnsiPrefix; |
| return m_collection_sp->GetPropertyAtIndexAsString(nullptr, idx, ""); |
| } |
| |
| llvm::StringRef Debugger::GetStopShowColumnAnsiSuffix() const { |
| const uint32_t idx = ePropertyStopShowColumnAnsiSuffix; |
| return m_collection_sp->GetPropertyAtIndexAsString(nullptr, idx, ""); |
| } |
| |
| uint32_t Debugger::GetStopSourceLineCount(bool before) const { |
| const uint32_t idx = |
| before ? ePropertyStopLineCountBefore : ePropertyStopLineCountAfter; |
| return m_collection_sp->GetPropertyAtIndexAsSInt64( |
| nullptr, idx, g_properties[idx].default_uint_value); |
| } |
| |
| Debugger::StopDisassemblyType Debugger::GetStopDisassemblyDisplay() const { |
| const uint32_t idx = ePropertyStopDisassemblyDisplay; |
| return (Debugger::StopDisassemblyType) |
| m_collection_sp->GetPropertyAtIndexAsEnumeration( |
| nullptr, idx, g_properties[idx].default_uint_value); |
| } |
| |
| uint32_t Debugger::GetDisassemblyLineCount() const { |
| const uint32_t idx = ePropertyStopDisassemblyCount; |
| return m_collection_sp->GetPropertyAtIndexAsSInt64( |
| nullptr, idx, g_properties[idx].default_uint_value); |
| } |
| |
| bool Debugger::GetAutoOneLineSummaries() const { |
| const uint32_t idx = ePropertyAutoOneLineSummaries; |
| return m_collection_sp->GetPropertyAtIndexAsBoolean(nullptr, idx, true); |
| } |
| |
| bool Debugger::GetEscapeNonPrintables() const { |
| const uint32_t idx = ePropertyEscapeNonPrintables; |
| return m_collection_sp->GetPropertyAtIndexAsBoolean(nullptr, idx, true); |
| } |
| |
| bool Debugger::GetAutoIndent() const { |
| const uint32_t idx = ePropertyAutoIndent; |
| return m_collection_sp->GetPropertyAtIndexAsBoolean(nullptr, idx, true); |
| } |
| |
| bool Debugger::SetAutoIndent(bool b) { |
| const uint32_t idx = ePropertyAutoIndent; |
| return m_collection_sp->SetPropertyAtIndexAsBoolean(nullptr, idx, b); |
| } |
| |
| bool Debugger::GetPrintDecls() const { |
| const uint32_t idx = ePropertyPrintDecls; |
| return m_collection_sp->GetPropertyAtIndexAsBoolean(nullptr, idx, true); |
| } |
| |
| bool Debugger::SetPrintDecls(bool b) { |
| const uint32_t idx = ePropertyPrintDecls; |
| return m_collection_sp->SetPropertyAtIndexAsBoolean(nullptr, idx, b); |
| } |
| |
| uint32_t Debugger::GetTabSize() const { |
| const uint32_t idx = ePropertyTabSize; |
| return m_collection_sp->GetPropertyAtIndexAsUInt64( |
| nullptr, idx, g_properties[idx].default_uint_value); |
| } |
| |
| bool Debugger::SetTabSize(uint32_t tab_size) { |
| const uint32_t idx = ePropertyTabSize; |
| return m_collection_sp->SetPropertyAtIndexAsUInt64(nullptr, idx, tab_size); |
| } |
| |
| #pragma mark Debugger |
| |
| // const DebuggerPropertiesSP & |
| // Debugger::GetSettings() const |
| //{ |
| // return m_properties_sp; |
| //} |
| // |
| |
| void Debugger::Initialize(LoadPluginCallbackType load_plugin_callback) { |
| assert(g_debugger_list_ptr == nullptr && |
| "Debugger::Initialize called more than once!"); |
| g_debugger_list_mutex_ptr = new std::recursive_mutex(); |
| g_debugger_list_ptr = new DebuggerList(); |
| g_load_plugin_callback = load_plugin_callback; |
| } |
| |
| void Debugger::Terminate() { |
| assert(g_debugger_list_ptr && |
| "Debugger::Terminate called without a matching Debugger::Initialize!"); |
| |
| if (g_debugger_list_ptr && g_debugger_list_mutex_ptr) { |
| // Clear our master list of debugger objects |
| { |
| std::lock_guard<std::recursive_mutex> guard(*g_debugger_list_mutex_ptr); |
| for (const auto &debugger : *g_debugger_list_ptr) |
| debugger->Clear(); |
| g_debugger_list_ptr->clear(); |
| } |
| } |
| } |
| |
| void Debugger::SettingsInitialize() { Target::SettingsInitialize(); } |
| |
| void Debugger::SettingsTerminate() { Target::SettingsTerminate(); } |
| |
| bool Debugger::LoadPlugin(const FileSpec &spec, Status &error) { |
| if (g_load_plugin_callback) { |
| llvm::sys::DynamicLibrary dynlib = |
| g_load_plugin_callback(shared_from_this(), spec, error); |
| if (dynlib.isValid()) { |
| m_loaded_plugins.push_back(dynlib); |
| return true; |
| } |
| } else { |
| // The g_load_plugin_callback is registered in SBDebugger::Initialize() and |
| // if the public API layer isn't available (code is linking against all of |
| // the internal LLDB static libraries), then we can't load plugins |
| error.SetErrorString("Public API layer is not available"); |
| } |
| return false; |
| } |
| |
| static FileSystem::EnumerateDirectoryResult |
| LoadPluginCallback(void *baton, llvm::sys::fs::file_type ft, |
| llvm::StringRef path) { |
| Status error; |
| |
| static ConstString g_dylibext(".dylib"); |
| static ConstString g_solibext(".so"); |
| |
| if (!baton) |
| return FileSystem::eEnumerateDirectoryResultQuit; |
| |
| Debugger *debugger = (Debugger *)baton; |
| |
| namespace fs = llvm::sys::fs; |
| // If we have a regular file, a symbolic link or unknown file type, try and |
| // process the file. We must handle unknown as sometimes the directory |
| // enumeration might be enumerating a file system that doesn't have correct |
| // file type information. |
| if (ft == fs::file_type::regular_file || ft == fs::file_type::symlink_file || |
| ft == fs::file_type::type_unknown) { |
| FileSpec plugin_file_spec(path); |
| FileSystem::Instance().Resolve(plugin_file_spec); |
| |
| if (plugin_file_spec.GetFileNameExtension() != g_dylibext && |
| plugin_file_spec.GetFileNameExtension() != g_solibext) { |
| return FileSystem::eEnumerateDirectoryResultNext; |
| } |
| |
| Status plugin_load_error; |
| debugger->LoadPlugin(plugin_file_spec, plugin_load_error); |
| |
| return FileSystem::eEnumerateDirectoryResultNext; |
| } else if (ft == fs::file_type::directory_file || |
| ft == fs::file_type::symlink_file || |
| ft == fs::file_type::type_unknown) { |
| // Try and recurse into anything that a directory or symbolic link. We must |
| // also do this for unknown as sometimes the directory enumeration might be |
| // enumerating a file system that doesn't have correct file type |
| // information. |
| return FileSystem::eEnumerateDirectoryResultEnter; |
| } |
| |
| return FileSystem::eEnumerateDirectoryResultNext; |
| } |
| |
| void Debugger::InstanceInitialize() { |
| const bool find_directories = true; |
| const bool find_files = true; |
| const bool find_other = true; |
| char dir_path[PATH_MAX]; |
| if (FileSpec dir_spec = HostInfo::GetSystemPluginDir()) { |
| if (FileSystem::Instance().Exists(dir_spec) && |
| dir_spec.GetPath(dir_path, sizeof(dir_path))) { |
| FileSystem::Instance().EnumerateDirectory(dir_path, find_directories, |
| find_files, find_other, |
| LoadPluginCallback, this); |
| } |
| } |
| |
| if (FileSpec dir_spec = HostInfo::GetUserPluginDir()) { |
| if (FileSystem::Instance().Exists(dir_spec) && |
| dir_spec.GetPath(dir_path, sizeof(dir_path))) { |
| FileSystem::Instance().EnumerateDirectory(dir_path, find_directories, |
| find_files, find_other, |
| LoadPluginCallback, this); |
| } |
| } |
| |
| PluginManager::DebuggerInitialize(*this); |
| } |
| |
| DebuggerSP Debugger::CreateInstance(lldb::LogOutputCallback log_callback, |
| void *baton) { |
| DebuggerSP debugger_sp(new Debugger(log_callback, baton)); |
| if (g_debugger_list_ptr && g_debugger_list_mutex_ptr) { |
| std::lock_guard<std::recursive_mutex> guard(*g_debugger_list_mutex_ptr); |
| g_debugger_list_ptr->push_back(debugger_sp); |
| } |
| debugger_sp->InstanceInitialize(); |
| return debugger_sp; |
| } |
| |
| void Debugger::Destroy(DebuggerSP &debugger_sp) { |
| if (!debugger_sp) |
| return; |
| |
| debugger_sp->Clear(); |
| |
| if (g_debugger_list_ptr && g_debugger_list_mutex_ptr) { |
| std::lock_guard<std::recursive_mutex> guard(*g_debugger_list_mutex_ptr); |
| DebuggerList::iterator pos, end = g_debugger_list_ptr->end(); |
| for (pos = g_debugger_list_ptr->begin(); pos != end; ++pos) { |
| if ((*pos).get() == debugger_sp.get()) { |
| g_debugger_list_ptr->erase(pos); |
| return; |
| } |
| } |
| } |
| } |
| |
| DebuggerSP |
| Debugger::FindDebuggerWithInstanceName(const ConstString &instance_name) { |
| DebuggerSP debugger_sp; |
| if (g_debugger_list_ptr && g_debugger_list_mutex_ptr) { |
| std::lock_guard<std::recursive_mutex> guard(*g_debugger_list_mutex_ptr); |
| DebuggerList::iterator pos, end = g_debugger_list_ptr->end(); |
| for (pos = g_debugger_list_ptr->begin(); pos != end; ++pos) { |
| if ((*pos)->m_instance_name == instance_name) { |
| debugger_sp = *pos; |
| break; |
| } |
| } |
| } |
| return debugger_sp; |
| } |
| |
| TargetSP Debugger::FindTargetWithProcessID(lldb::pid_t pid) { |
| TargetSP target_sp; |
| if (g_debugger_list_ptr && g_debugger_list_mutex_ptr) { |
| std::lock_guard<std::recursive_mutex> guard(*g_debugger_list_mutex_ptr); |
| DebuggerList::iterator pos, end = g_debugger_list_ptr->end(); |
| for (pos = g_debugger_list_ptr->begin(); pos != end; ++pos) { |
| target_sp = (*pos)->GetTargetList().FindTargetWithProcessID(pid); |
| if (target_sp) |
| break; |
| } |
| } |
| return target_sp; |
| } |
| |
| TargetSP Debugger::FindTargetWithProcess(Process *process) { |
| TargetSP target_sp; |
| if (g_debugger_list_ptr && g_debugger_list_mutex_ptr) { |
| std::lock_guard<std::recursive_mutex> guard(*g_debugger_list_mutex_ptr); |
| DebuggerList::iterator pos, end = g_debugger_list_ptr->end(); |
| for (pos = g_debugger_list_ptr->begin(); pos != end; ++pos) { |
| target_sp = (*pos)->GetTargetList().FindTargetWithProcess(process); |
| if (target_sp) |
| break; |
| } |
| } |
| return target_sp; |
| } |
| |
| Debugger::Debugger(lldb::LogOutputCallback log_callback, void *baton) |
| : UserID(g_unique_id++), |
| Properties(std::make_shared<OptionValueProperties>()), |
| m_input_file_sp(std::make_shared<StreamFile>(stdin, false)), |
| m_output_file_sp(std::make_shared<StreamFile>(stdout, false)), |
| m_error_file_sp(std::make_shared<StreamFile>(stderr, false)), |
| m_broadcaster_manager_sp(BroadcasterManager::MakeBroadcasterManager()), |
| m_terminal_state(), m_target_list(*this), m_platform_list(), |
| m_listener_sp(Listener::MakeListener("lldb.Debugger")), |
| m_source_manager_ap(), m_source_file_cache(), |
| m_command_interpreter_ap(llvm::make_unique<CommandInterpreter>( |
| *this, eScriptLanguageDefault, false)), |
| m_input_reader_stack(), m_instance_name(), m_loaded_plugins(), |
| m_event_handler_thread(), m_io_handler_thread(), |
| m_sync_broadcaster(nullptr, "lldb.debugger.sync"), |
| m_forward_listener_sp(), m_clear_once() { |
| char instance_cstr[256]; |
| snprintf(instance_cstr, sizeof(instance_cstr), "debugger_%d", (int)GetID()); |
| m_instance_name.SetCString(instance_cstr); |
| if (log_callback) |
| m_log_callback_stream_sp = |
| std::make_shared<StreamCallback>(log_callback, baton); |
| m_command_interpreter_ap->Initialize(); |
| // Always add our default platform to the platform list |
| PlatformSP default_platform_sp(Platform::GetHostPlatform()); |
| assert(default_platform_sp); |
| m_platform_list.Append(default_platform_sp, true); |
| |
| m_collection_sp->Initialize(g_properties); |
| m_collection_sp->AppendProperty( |
| ConstString("target"), |
| ConstString("Settings specify to debugging targets."), true, |
| Target::GetGlobalProperties()->GetValueProperties()); |
| m_collection_sp->AppendProperty( |
| ConstString("platform"), ConstString("Platform settings."), true, |
| Platform::GetGlobalPlatformProperties()->GetValueProperties()); |
| m_collection_sp->AppendProperty( |
| ConstString("symbols"), ConstString("Symbol lookup and cache settings."), |
| true, ModuleList::GetGlobalModuleListProperties().GetValueProperties()); |
| if (m_command_interpreter_ap) { |
| m_collection_sp->AppendProperty( |
| ConstString("interpreter"), |
| ConstString("Settings specify to the debugger's command interpreter."), |
| true, m_command_interpreter_ap->GetValueProperties()); |
| } |
| OptionValueSInt64 *term_width = |
| m_collection_sp->GetPropertyAtIndexAsOptionValueSInt64( |
| nullptr, ePropertyTerminalWidth); |
| term_width->SetMinimumValue(10); |
| term_width->SetMaximumValue(1024); |
| |
| // Turn off use-color if this is a dumb terminal. |
| const char *term = getenv("TERM"); |
| if (term && !strcmp(term, "dumb")) |
| SetUseColor(false); |
| // Turn off use-color if we don't write to a terminal with color support. |
| if (!m_output_file_sp->GetFile().GetIsTerminalWithColors()) |
| SetUseColor(false); |
| |
| #if defined(_WIN32) && defined(ENABLE_VIRTUAL_TERMINAL_PROCESSING) |
| // Enabling use of ANSI color codes because LLDB is using them to highlight |
| // text. |
| llvm::sys::Process::UseANSIEscapeCodes(true); |
| #endif |
| } |
| |
| Debugger::~Debugger() { Clear(); } |
| |
| void Debugger::Clear() { |
| //---------------------------------------------------------------------- |
| // Make sure we call this function only once. With the C++ global destructor |
| // chain having a list of debuggers and with code that can be running on |
| // other threads, we need to ensure this doesn't happen multiple times. |
| // |
| // The following functions call Debugger::Clear(): |
| // Debugger::~Debugger(); |
| // static void Debugger::Destroy(lldb::DebuggerSP &debugger_sp); |
| // static void Debugger::Terminate(); |
| //---------------------------------------------------------------------- |
| llvm::call_once(m_clear_once, [this]() { |
| ClearIOHandlers(); |
| StopIOHandlerThread(); |
| StopEventHandlerThread(); |
| m_listener_sp->Clear(); |
| int num_targets = m_target_list.GetNumTargets(); |
| for (int i = 0; i < num_targets; i++) { |
| TargetSP target_sp(m_target_list.GetTargetAtIndex(i)); |
| if (target_sp) { |
| ProcessSP process_sp(target_sp->GetProcessSP()); |
| if (process_sp) |
| process_sp->Finalize(); |
| target_sp->Destroy(); |
| } |
| } |
| m_broadcaster_manager_sp->Clear(); |
| |
| // Close the input file _before_ we close the input read communications |
| // class as it does NOT own the input file, our m_input_file does. |
| m_terminal_state.Clear(); |
| if (m_input_file_sp) |
| m_input_file_sp->GetFile().Close(); |
| |
| m_command_interpreter_ap->Clear(); |
| }); |
| } |
| |
| bool Debugger::GetCloseInputOnEOF() const { |
| // return m_input_comm.GetCloseOnEOF(); |
| return false; |
| } |
| |
| void Debugger::SetCloseInputOnEOF(bool b) { |
| // m_input_comm.SetCloseOnEOF(b); |
| } |
| |
| bool Debugger::GetAsyncExecution() { |
| return !m_command_interpreter_ap->GetSynchronous(); |
| } |
| |
| void Debugger::SetAsyncExecution(bool async_execution) { |
| m_command_interpreter_ap->SetSynchronous(!async_execution); |
| } |
| |
| void Debugger::SetInputFileHandle(FILE *fh, bool tranfer_ownership) { |
| if (m_input_file_sp) |
| m_input_file_sp->GetFile().SetStream(fh, tranfer_ownership); |
| else |
| m_input_file_sp = std::make_shared<StreamFile>(fh, tranfer_ownership); |
| |
| File &in_file = m_input_file_sp->GetFile(); |
| if (!in_file.IsValid()) |
| in_file.SetStream(stdin, true); |
| |
| // Save away the terminal state if that is relevant, so that we can restore |
| // it in RestoreInputState. |
| SaveInputTerminalState(); |
| } |
| |
| void Debugger::SetOutputFileHandle(FILE *fh, bool tranfer_ownership) { |
| if (m_output_file_sp) |
| m_output_file_sp->GetFile().SetStream(fh, tranfer_ownership); |
| else |
| m_output_file_sp = std::make_shared<StreamFile>(fh, tranfer_ownership); |
| |
| File &out_file = m_output_file_sp->GetFile(); |
| if (!out_file.IsValid()) |
| out_file.SetStream(stdout, false); |
| |
| // do not create the ScriptInterpreter just for setting the output file |
| // handle as the constructor will know how to do the right thing on its own |
| const bool can_create = false; |
| ScriptInterpreter *script_interpreter = |
| GetCommandInterpreter().GetScriptInterpreter(can_create); |
| if (script_interpreter) |
| script_interpreter->ResetOutputFileHandle(fh); |
| } |
| |
| void Debugger::SetErrorFileHandle(FILE *fh, bool tranfer_ownership) { |
| if (m_error_file_sp) |
| m_error_file_sp->GetFile().SetStream(fh, tranfer_ownership); |
| else |
| m_error_file_sp = std::make_shared<StreamFile>(fh, tranfer_ownership); |
| |
| File &err_file = m_error_file_sp->GetFile(); |
| if (!err_file.IsValid()) |
| err_file.SetStream(stderr, false); |
| } |
| |
| void Debugger::SaveInputTerminalState() { |
| if (m_input_file_sp) { |
| File &in_file = m_input_file_sp->GetFile(); |
| if (in_file.GetDescriptor() != File::kInvalidDescriptor) |
| m_terminal_state.Save(in_file.GetDescriptor(), true); |
| } |
| } |
| |
| void Debugger::RestoreInputTerminalState() { m_terminal_state.Restore(); } |
| |
| ExecutionContext Debugger::GetSelectedExecutionContext() { |
| ExecutionContext exe_ctx; |
| TargetSP target_sp(GetSelectedTarget()); |
| exe_ctx.SetTargetSP(target_sp); |
| |
| if (target_sp) { |
| ProcessSP process_sp(target_sp->GetProcessSP()); |
| exe_ctx.SetProcessSP(process_sp); |
| if (process_sp && !process_sp->IsRunning()) { |
| ThreadSP thread_sp(process_sp->GetThreadList().GetSelectedThread()); |
| if (thread_sp) { |
| exe_ctx.SetThreadSP(thread_sp); |
| exe_ctx.SetFrameSP(thread_sp->GetSelectedFrame()); |
| if (exe_ctx.GetFramePtr() == nullptr) |
| exe_ctx.SetFrameSP(thread_sp->GetStackFrameAtIndex(0)); |
| } |
| } |
| } |
| return exe_ctx; |
| } |
| |
| void Debugger::DispatchInputInterrupt() { |
| std::lock_guard<std::recursive_mutex> guard(m_input_reader_stack.GetMutex()); |
| IOHandlerSP reader_sp(m_input_reader_stack.Top()); |
| if (reader_sp) |
| reader_sp->Interrupt(); |
| } |
| |
| void Debugger::DispatchInputEndOfFile() { |
| std::lock_guard<std::recursive_mutex> guard(m_input_reader_stack.GetMutex()); |
| IOHandlerSP reader_sp(m_input_reader_stack.Top()); |
| if (reader_sp) |
| reader_sp->GotEOF(); |
| } |
| |
| void Debugger::ClearIOHandlers() { |
| // The bottom input reader should be the main debugger input reader. We do |
| // not want to close that one here. |
| std::lock_guard<std::recursive_mutex> guard(m_input_reader_stack.GetMutex()); |
| while (m_input_reader_stack.GetSize() > 1) { |
| IOHandlerSP reader_sp(m_input_reader_stack.Top()); |
| if (reader_sp) |
| PopIOHandler(reader_sp); |
| } |
| } |
| |
| void Debugger::ExecuteIOHandlers() { |
| while (true) { |
| IOHandlerSP reader_sp(m_input_reader_stack.Top()); |
| if (!reader_sp) |
| break; |
| |
| reader_sp->Run(); |
| |
| // Remove all input readers that are done from the top of the stack |
| while (true) { |
| IOHandlerSP top_reader_sp = m_input_reader_stack.Top(); |
| if (top_reader_sp && top_reader_sp->GetIsDone()) |
| PopIOHandler(top_reader_sp); |
| else |
| break; |
| } |
| } |
| ClearIOHandlers(); |
| } |
| |
| bool Debugger::IsTopIOHandler(const lldb::IOHandlerSP &reader_sp) { |
| return m_input_reader_stack.IsTop(reader_sp); |
| } |
| |
| bool Debugger::CheckTopIOHandlerTypes(IOHandler::Type top_type, |
| IOHandler::Type second_top_type) { |
| return m_input_reader_stack.CheckTopIOHandlerTypes(top_type, second_top_type); |
| } |
| |
| void Debugger::PrintAsync(const char *s, size_t len, bool is_stdout) { |
| lldb::StreamFileSP stream = is_stdout ? GetOutputFile() : GetErrorFile(); |
| m_input_reader_stack.PrintAsync(stream.get(), s, len); |
| } |
| |
| ConstString Debugger::GetTopIOHandlerControlSequence(char ch) { |
| return m_input_reader_stack.GetTopIOHandlerControlSequence(ch); |
| } |
| |
| const char *Debugger::GetIOHandlerCommandPrefix() { |
| return m_input_reader_stack.GetTopIOHandlerCommandPrefix(); |
| } |
| |
| const char *Debugger::GetIOHandlerHelpPrologue() { |
| return m_input_reader_stack.GetTopIOHandlerHelpPrologue(); |
| } |
| |
| void Debugger::RunIOHandler(const IOHandlerSP &reader_sp) { |
| PushIOHandler(reader_sp); |
| |
| IOHandlerSP top_reader_sp = reader_sp; |
| while (top_reader_sp) { |
| top_reader_sp->Run(); |
| |
| if (top_reader_sp.get() == reader_sp.get()) { |
| if (PopIOHandler(reader_sp)) |
| break; |
| } |
| |
| while (true) { |
| top_reader_sp = m_input_reader_stack.Top(); |
| if (top_reader_sp && top_reader_sp->GetIsDone()) |
| PopIOHandler(top_reader_sp); |
| else |
| break; |
| } |
| } |
| } |
| |
| void Debugger::AdoptTopIOHandlerFilesIfInvalid(StreamFileSP &in, |
| StreamFileSP &out, |
| StreamFileSP &err) { |
| // Before an IOHandler runs, it must have in/out/err streams. This function |
| // is called when one ore more of the streams are nullptr. We use the top |
| // input reader's in/out/err streams, or fall back to the debugger file |
| // handles, or we fall back onto stdin/stdout/stderr as a last resort. |
| |
| std::lock_guard<std::recursive_mutex> guard(m_input_reader_stack.GetMutex()); |
| IOHandlerSP top_reader_sp(m_input_reader_stack.Top()); |
| // If no STDIN has been set, then set it appropriately |
| if (!in) { |
| if (top_reader_sp) |
| in = top_reader_sp->GetInputStreamFile(); |
| else |
| in = GetInputFile(); |
| |
| // If there is nothing, use stdin |
| if (!in) |
| in = std::make_shared<StreamFile>(stdin, false); |
| } |
| // If no STDOUT has been set, then set it appropriately |
| if (!out) { |
| if (top_reader_sp) |
| out = top_reader_sp->GetOutputStreamFile(); |
| else |
| out = GetOutputFile(); |
| |
| // If there is nothing, use stdout |
| if (!out) |
| out = std::make_shared<StreamFile>(stdout, false); |
| } |
| // If no STDERR has been set, then set it appropriately |
| if (!err) { |
| if (top_reader_sp) |
| err = top_reader_sp->GetErrorStreamFile(); |
| else |
| err = GetErrorFile(); |
| |
| // If there is nothing, use stderr |
| if (!err) |
| err = std::make_shared<StreamFile>(stdout, false); |
| } |
| } |
| |
| void Debugger::PushIOHandler(const IOHandlerSP &reader_sp, |
| bool cancel_top_handler) { |
| if (!reader_sp) |
| return; |
| |
| std::lock_guard<std::recursive_mutex> guard(m_input_reader_stack.GetMutex()); |
| |
| // Get the current top input reader... |
| IOHandlerSP top_reader_sp(m_input_reader_stack.Top()); |
| |
| // Don't push the same IO handler twice... |
| if (reader_sp == top_reader_sp) |
| return; |
| |
| // Push our new input reader |
| m_input_reader_stack.Push(reader_sp); |
| reader_sp->Activate(); |
| |
| // Interrupt the top input reader to it will exit its Run() function and let |
| // this new input reader take over |
| if (top_reader_sp) { |
| top_reader_sp->Deactivate(); |
| if (cancel_top_handler) |
| top_reader_sp->Cancel(); |
| } |
| } |
| |
| bool Debugger::PopIOHandler(const IOHandlerSP &pop_reader_sp) { |
| if (!pop_reader_sp) |
| return false; |
| |
| std::lock_guard<std::recursive_mutex> guard(m_input_reader_stack.GetMutex()); |
| |
| // The reader on the stop of the stack is done, so let the next read on the |
| // stack refresh its prompt and if there is one... |
| if (m_input_reader_stack.IsEmpty()) |
| return false; |
| |
| IOHandlerSP reader_sp(m_input_reader_stack.Top()); |
| |
| if (pop_reader_sp != reader_sp) |
| return false; |
| |
| reader_sp->Deactivate(); |
| reader_sp->Cancel(); |
| m_input_reader_stack.Pop(); |
| |
| reader_sp = m_input_reader_stack.Top(); |
| if (reader_sp) |
| reader_sp->Activate(); |
| |
| return true; |
| } |
| |
| StreamSP Debugger::GetAsyncOutputStream() { |
| return std::make_shared<StreamAsynchronousIO>(*this, true); |
| } |
| |
| StreamSP Debugger::GetAsyncErrorStream() { |
| return std::make_shared<StreamAsynchronousIO>(*this, false); |
| } |
| |
| size_t Debugger::GetNumDebuggers() { |
| if (g_debugger_list_ptr && g_debugger_list_mutex_ptr) { |
| std::lock_guard<std::recursive_mutex> guard(*g_debugger_list_mutex_ptr); |
| return g_debugger_list_ptr->size(); |
| } |
| return 0; |
| } |
| |
| lldb::DebuggerSP Debugger::GetDebuggerAtIndex(size_t index) { |
| DebuggerSP debugger_sp; |
| |
| if (g_debugger_list_ptr && g_debugger_list_mutex_ptr) { |
| std::lock_guard<std::recursive_mutex> guard(*g_debugger_list_mutex_ptr); |
| if (index < g_debugger_list_ptr->size()) |
| debugger_sp = g_debugger_list_ptr->at(index); |
| } |
| |
| return debugger_sp; |
| } |
| |
| DebuggerSP Debugger::FindDebuggerWithID(lldb::user_id_t id) { |
| DebuggerSP debugger_sp; |
| |
| if (g_debugger_list_ptr && g_debugger_list_mutex_ptr) { |
| std::lock_guard<std::recursive_mutex> guard(*g_debugger_list_mutex_ptr); |
| DebuggerList::iterator pos, end = g_debugger_list_ptr->end(); |
| for (pos = g_debugger_list_ptr->begin(); pos != end; ++pos) { |
| if ((*pos)->GetID() == id) { |
| debugger_sp = *pos; |
| break; |
| } |
| } |
| } |
| return debugger_sp; |
| } |
| |
| bool Debugger::FormatDisassemblerAddress(const FormatEntity::Entry *format, |
| const SymbolContext *sc, |
| const SymbolContext *prev_sc, |
| const ExecutionContext *exe_ctx, |
| const Address *addr, Stream &s) { |
| FormatEntity::Entry format_entry; |
| |
| if (format == nullptr) { |
| if (exe_ctx != nullptr && exe_ctx->HasTargetScope()) |
| format = exe_ctx->GetTargetRef().GetDebugger().GetDisassemblyFormat(); |
| if (format == nullptr) { |
| FormatEntity::Parse("${addr}: ", format_entry); |
| format = &format_entry; |
| } |
| } |
| bool function_changed = false; |
| bool initial_function = false; |
| if (prev_sc && (prev_sc->function || prev_sc->symbol)) { |
| if (sc && (sc->function || sc->symbol)) { |
| if (prev_sc->symbol && sc->symbol) { |
| if (!sc->symbol->Compare(prev_sc->symbol->GetName(), |
| prev_sc->symbol->GetType())) { |
| function_changed = true; |
| } |
| } else if (prev_sc->function && sc->function) { |
| if (prev_sc->function->GetMangled() != sc->function->GetMangled()) { |
| function_changed = true; |
| } |
| } |
| } |
| } |
| // The first context on a list of instructions will have a prev_sc that has |
| // no Function or Symbol -- if SymbolContext had an IsValid() method, it |
| // would return false. But we do get a prev_sc pointer. |
| if ((sc && (sc->function || sc->symbol)) && prev_sc && |
| (prev_sc->function == nullptr && prev_sc->symbol == nullptr)) { |
| initial_function = true; |
| } |
| return FormatEntity::Format(*format, s, sc, exe_ctx, addr, nullptr, |
| function_changed, initial_function); |
| } |
| |
| void Debugger::SetLoggingCallback(lldb::LogOutputCallback log_callback, |
| void *baton) { |
| // For simplicity's sake, I am not going to deal with how to close down any |
| // open logging streams, I just redirect everything from here on out to the |
| // callback. |
| m_log_callback_stream_sp = |
| std::make_shared<StreamCallback>(log_callback, baton); |
| } |
| |
| bool Debugger::EnableLog(llvm::StringRef channel, |
| llvm::ArrayRef<const char *> categories, |
| llvm::StringRef log_file, uint32_t log_options, |
| llvm::raw_ostream &error_stream) { |
| const bool should_close = true; |
| const bool unbuffered = true; |
| |
| std::shared_ptr<llvm::raw_ostream> log_stream_sp; |
| if (m_log_callback_stream_sp) { |
| log_stream_sp = m_log_callback_stream_sp; |
| // For now when using the callback mode you always get thread & timestamp. |
| log_options |= |
| LLDB_LOG_OPTION_PREPEND_TIMESTAMP | LLDB_LOG_OPTION_PREPEND_THREAD_NAME; |
| } else if (log_file.empty()) { |
| log_stream_sp = std::make_shared<llvm::raw_fd_ostream>( |
| GetOutputFile()->GetFile().GetDescriptor(), !should_close, unbuffered); |
| } else { |
| auto pos = m_log_streams.find(log_file); |
| if (pos != m_log_streams.end()) |
| log_stream_sp = pos->second.lock(); |
| if (!log_stream_sp) { |
| llvm::sys::fs::OpenFlags flags = llvm::sys::fs::F_Text; |
| if (log_options & LLDB_LOG_OPTION_APPEND) |
| flags |= llvm::sys::fs::F_Append; |
| int FD; |
| if (std::error_code ec = llvm::sys::fs::openFileForWrite( |
| log_file, FD, llvm::sys::fs::CD_CreateAlways, flags)) { |
| error_stream << "Unable to open log file: " << ec.message(); |
| return false; |
| } |
| log_stream_sp = |
| std::make_shared<llvm::raw_fd_ostream>(FD, should_close, unbuffered); |
| m_log_streams[log_file] = log_stream_sp; |
| } |
| } |
| assert(log_stream_sp); |
| |
| if (log_options == 0) |
| log_options = |
| LLDB_LOG_OPTION_PREPEND_THREAD_NAME | LLDB_LOG_OPTION_THREADSAFE; |
| |
| return Log::EnableLogChannel(log_stream_sp, log_options, channel, categories, |
| error_stream); |
| } |
| |
| SourceManager &Debugger::GetSourceManager() { |
| if (!m_source_manager_ap) |
| m_source_manager_ap = llvm::make_unique<SourceManager>(shared_from_this()); |
| return *m_source_manager_ap; |
| } |
| |
| // This function handles events that were broadcast by the process. |
| void Debugger::HandleBreakpointEvent(const EventSP &event_sp) { |
| using namespace lldb; |
| const uint32_t event_type = |
| Breakpoint::BreakpointEventData::GetBreakpointEventTypeFromEvent( |
| event_sp); |
| |
| // if (event_type & eBreakpointEventTypeAdded |
| // || event_type & eBreakpointEventTypeRemoved |
| // || event_type & eBreakpointEventTypeEnabled |
| // || event_type & eBreakpointEventTypeDisabled |
| // || event_type & eBreakpointEventTypeCommandChanged |
| // || event_type & eBreakpointEventTypeConditionChanged |
| // || event_type & eBreakpointEventTypeIgnoreChanged |
| // || event_type & eBreakpointEventTypeLocationsResolved) |
| // { |
| // // Don't do anything about these events, since the breakpoint |
| // commands already echo these actions. |
| // } |
| // |
| if (event_type & eBreakpointEventTypeLocationsAdded) { |
| uint32_t num_new_locations = |
| Breakpoint::BreakpointEventData::GetNumBreakpointLocationsFromEvent( |
| event_sp); |
| if (num_new_locations > 0) { |
| BreakpointSP breakpoint = |
| Breakpoint::BreakpointEventData::GetBreakpointFromEvent(event_sp); |
| StreamSP output_sp(GetAsyncOutputStream()); |
| if (output_sp) { |
| output_sp->Printf("%d location%s added to breakpoint %d\n", |
| num_new_locations, num_new_locations == 1 ? "" : "s", |
| breakpoint->GetID()); |
| output_sp->Flush(); |
| } |
| } |
| } |
| // else if (event_type & eBreakpointEventTypeLocationsRemoved) |
| // { |
| // // These locations just get disabled, not sure it is worth spamming |
| // folks about this on the command line. |
| // } |
| // else if (event_type & eBreakpointEventTypeLocationsResolved) |
| // { |
| // // This might be an interesting thing to note, but I'm going to |
| // leave it quiet for now, it just looked noisy. |
| // } |
| } |
| |
| size_t Debugger::GetProcessSTDOUT(Process *process, Stream *stream) { |
| size_t total_bytes = 0; |
| if (stream == nullptr) |
| stream = GetOutputFile().get(); |
| |
| if (stream) { |
| // The process has stuff waiting for stdout; get it and write it out to the |
| // appropriate place. |
| if (process == nullptr) { |
| TargetSP target_sp = GetTargetList().GetSelectedTarget(); |
| if (target_sp) |
| process = target_sp->GetProcessSP().get(); |
| } |
| if (process) { |
| Status error; |
| size_t len; |
| char stdio_buffer[1024]; |
| while ((len = process->GetSTDOUT(stdio_buffer, sizeof(stdio_buffer), |
| error)) > 0) { |
| stream->Write(stdio_buffer, len); |
| total_bytes += len; |
| } |
| } |
| stream->Flush(); |
| } |
| return total_bytes; |
| } |
| |
| size_t Debugger::GetProcessSTDERR(Process *process, Stream *stream) { |
| size_t total_bytes = 0; |
| if (stream == nullptr) |
| stream = GetOutputFile().get(); |
| |
| if (stream) { |
| // The process has stuff waiting for stderr; get it and write it out to the |
| // appropriate place. |
| if (process == nullptr) { |
| TargetSP target_sp = GetTargetList().GetSelectedTarget(); |
| if (target_sp) |
| process = target_sp->GetProcessSP().get(); |
| } |
| if (process) { |
| Status error; |
| size_t len; |
| char stdio_buffer[1024]; |
| while ((len = process->GetSTDERR(stdio_buffer, sizeof(stdio_buffer), |
| error)) > 0) { |
| stream->Write(stdio_buffer, len); |
| total_bytes += len; |
| } |
| } |
| stream->Flush(); |
| } |
| return total_bytes; |
| } |
| |
| // This function handles events that were broadcast by the process. |
| void Debugger::HandleProcessEvent(const EventSP &event_sp) { |
| using namespace lldb; |
| const uint32_t event_type = event_sp->GetType(); |
| ProcessSP process_sp = |
| (event_type == Process::eBroadcastBitStructuredData) |
| ? EventDataStructuredData::GetProcessFromEvent(event_sp.get()) |
| : Process::ProcessEventData::GetProcessFromEvent(event_sp.get()); |
| |
| StreamSP output_stream_sp = GetAsyncOutputStream(); |
| StreamSP error_stream_sp = GetAsyncErrorStream(); |
| const bool gui_enabled = IsForwardingEvents(); |
| |
| if (!gui_enabled) { |
| bool pop_process_io_handler = false; |
| assert(process_sp); |
| |
| bool state_is_stopped = false; |
| const bool got_state_changed = |
| (event_type & Process::eBroadcastBitStateChanged) != 0; |
| const bool got_stdout = (event_type & Process::eBroadcastBitSTDOUT) != 0; |
| const bool got_stderr = (event_type & Process::eBroadcastBitSTDERR) != 0; |
| const bool got_structured_data = |
| (event_type & Process::eBroadcastBitStructuredData) != 0; |
| |
| if (got_state_changed) { |
| StateType event_state = |
| Process::ProcessEventData::GetStateFromEvent(event_sp.get()); |
| state_is_stopped = StateIsStoppedState(event_state, false); |
| } |
| |
| // Display running state changes first before any STDIO |
| if (got_state_changed && !state_is_stopped) { |
| Process::HandleProcessStateChangedEvent(event_sp, output_stream_sp.get(), |
| pop_process_io_handler); |
| } |
| |
| // Now display and STDOUT |
| if (got_stdout || got_state_changed) { |
| GetProcessSTDOUT(process_sp.get(), output_stream_sp.get()); |
| } |
| |
| // Now display and STDERR |
| if (got_stderr || got_state_changed) { |
| GetProcessSTDERR(process_sp.get(), error_stream_sp.get()); |
| } |
| |
| // Give structured data events an opportunity to display. |
| if (got_structured_data) { |
| StructuredDataPluginSP plugin_sp = |
| EventDataStructuredData::GetPluginFromEvent(event_sp.get()); |
| if (plugin_sp) { |
| auto structured_data_sp = |
| EventDataStructuredData::GetObjectFromEvent(event_sp.get()); |
| if (output_stream_sp) { |
| StreamString content_stream; |
| Status error = |
| plugin_sp->GetDescription(structured_data_sp, content_stream); |
| if (error.Success()) { |
| if (!content_stream.GetString().empty()) { |
| // Add newline. |
| content_stream.PutChar('\n'); |
| content_stream.Flush(); |
| |
| // Print it. |
| output_stream_sp->PutCString(content_stream.GetString()); |
| } |
| } else { |
| error_stream_sp->Printf("Failed to print structured " |
| "data with plugin %s: %s", |
| plugin_sp->GetPluginName().AsCString(), |
| error.AsCString()); |
| } |
| } |
| } |
| } |
| |
| // Now display any stopped state changes after any STDIO |
| if (got_state_changed && state_is_stopped) { |
| Process::HandleProcessStateChangedEvent(event_sp, output_stream_sp.get(), |
| pop_process_io_handler); |
| } |
| |
| output_stream_sp->Flush(); |
| error_stream_sp->Flush(); |
| |
| if (pop_process_io_handler) |
| process_sp->PopProcessIOHandler(); |
| } |
| } |
| |
| void Debugger::HandleThreadEvent(const EventSP &event_sp) { |
| // At present the only thread event we handle is the Frame Changed event, and |
| // all we do for that is just reprint the thread status for that thread. |
| using namespace lldb; |
| const uint32_t event_type = event_sp->GetType(); |
| const bool stop_format = true; |
| if (event_type == Thread::eBroadcastBitStackChanged || |
| event_type == Thread::eBroadcastBitThreadSelected) { |
| ThreadSP thread_sp( |
| Thread::ThreadEventData::GetThreadFromEvent(event_sp.get())); |
| if (thread_sp) { |
| thread_sp->GetStatus(*GetAsyncOutputStream(), 0, 1, 1, stop_format); |
| } |
| } |
| } |
| |
| bool Debugger::IsForwardingEvents() { return (bool)m_forward_listener_sp; } |
| |
| void Debugger::EnableForwardEvents(const ListenerSP &listener_sp) { |
| m_forward_listener_sp = listener_sp; |
| } |
| |
| void Debugger::CancelForwardEvents(const ListenerSP &listener_sp) { |
| m_forward_listener_sp.reset(); |
| } |
| |
| void Debugger::DefaultEventHandler() { |
| ListenerSP listener_sp(GetListener()); |
| ConstString broadcaster_class_target(Target::GetStaticBroadcasterClass()); |
| ConstString broadcaster_class_process(Process::GetStaticBroadcasterClass()); |
| ConstString broadcaster_class_thread(Thread::GetStaticBroadcasterClass()); |
| BroadcastEventSpec target_event_spec(broadcaster_class_target, |
| Target::eBroadcastBitBreakpointChanged); |
| |
| BroadcastEventSpec process_event_spec( |
| broadcaster_class_process, |
| Process::eBroadcastBitStateChanged | Process::eBroadcastBitSTDOUT | |
| Process::eBroadcastBitSTDERR | Process::eBroadcastBitStructuredData); |
| |
| BroadcastEventSpec thread_event_spec(broadcaster_class_thread, |
| Thread::eBroadcastBitStackChanged | |
| Thread::eBroadcastBitThreadSelected); |
| |
| listener_sp->StartListeningForEventSpec(m_broadcaster_manager_sp, |
| target_event_spec); |
| listener_sp->StartListeningForEventSpec(m_broadcaster_manager_sp, |
| process_event_spec); |
| listener_sp->StartListeningForEventSpec(m_broadcaster_manager_sp, |
| thread_event_spec); |
| listener_sp->StartListeningForEvents( |
| m_command_interpreter_ap.get(), |
| CommandInterpreter::eBroadcastBitQuitCommandReceived | |
| CommandInterpreter::eBroadcastBitAsynchronousOutputData | |
| CommandInterpreter::eBroadcastBitAsynchronousErrorData); |
| |
| // Let the thread that spawned us know that we have started up and that we |
| // are now listening to all required events so no events get missed |
| m_sync_broadcaster.BroadcastEvent(eBroadcastBitEventThreadIsListening); |
| |
| bool done = false; |
| while (!done) { |
| EventSP event_sp; |
| if (listener_sp->GetEvent(event_sp, llvm::None)) { |
| if (event_sp) { |
| Broadcaster *broadcaster = event_sp->GetBroadcaster(); |
| if (broadcaster) { |
| uint32_t event_type = event_sp->GetType(); |
| ConstString broadcaster_class(broadcaster->GetBroadcasterClass()); |
| if (broadcaster_class == broadcaster_class_process) { |
| HandleProcessEvent(event_sp); |
| } else if (broadcaster_class == broadcaster_class_target) { |
| if (Breakpoint::BreakpointEventData::GetEventDataFromEvent( |
| event_sp.get())) { |
| HandleBreakpointEvent(event_sp); |
| } |
| } else if (broadcaster_class == broadcaster_class_thread) { |
| HandleThreadEvent(event_sp); |
| } else if (broadcaster == m_command_interpreter_ap.get()) { |
| if (event_type & |
| CommandInterpreter::eBroadcastBitQuitCommandReceived) { |
| done = true; |
| } else if (event_type & |
| CommandInterpreter::eBroadcastBitAsynchronousErrorData) { |
| const char *data = reinterpret_cast<const char *>( |
| EventDataBytes::GetBytesFromEvent(event_sp.get())); |
| if (data && data[0]) { |
| StreamSP error_sp(GetAsyncErrorStream()); |
| if (error_sp) { |
| error_sp->PutCString(data); |
| error_sp->Flush(); |
| } |
| } |
| } else if (event_type & CommandInterpreter:: |
| eBroadcastBitAsynchronousOutputData) { |
| const char *data = reinterpret_cast<const char *>( |
| EventDataBytes::GetBytesFromEvent(event_sp.get())); |
| if (data && data[0]) { |
| StreamSP output_sp(GetAsyncOutputStream()); |
| if (output_sp) { |
| output_sp->PutCString(data); |
| output_sp->Flush(); |
| } |
| } |
| } |
| } |
| } |
| |
| if (m_forward_listener_sp) |
| m_forward_listener_sp->AddEvent(event_sp); |
| } |
| } |
| } |
| } |
| |
| lldb::thread_result_t Debugger::EventHandlerThread(lldb::thread_arg_t arg) { |
| ((Debugger *)arg)->DefaultEventHandler(); |
| return NULL; |
| } |
| |
| bool Debugger::StartEventHandlerThread() { |
| if (!m_event_handler_thread.IsJoinable()) { |
| // We must synchronize with the DefaultEventHandler() thread to ensure it |
| // is up and running and listening to events before we return from this |
| // function. We do this by listening to events for the |
| // eBroadcastBitEventThreadIsListening from the m_sync_broadcaster |
| ConstString full_name("lldb.debugger.event-handler"); |
| ListenerSP listener_sp(Listener::MakeListener(full_name.AsCString())); |
| listener_sp->StartListeningForEvents(&m_sync_broadcaster, |
| eBroadcastBitEventThreadIsListening); |
| |
| auto thread_name = |
| full_name.GetLength() < llvm::get_max_thread_name_length() ? |
| full_name.AsCString() : "dbg.evt-handler"; |
| |
| // Use larger 8MB stack for this thread |
| m_event_handler_thread = ThreadLauncher::LaunchThread(thread_name, |
| EventHandlerThread, this, nullptr, g_debugger_event_thread_stack_bytes); |
| |
| // Make sure DefaultEventHandler() is running and listening to events |
| // before we return from this function. We are only listening for events of |
| // type eBroadcastBitEventThreadIsListening so we don't need to check the |
| // event, we just need to wait an infinite amount of time for it (nullptr |
| // timeout as the first parameter) |
| lldb::EventSP event_sp; |
| listener_sp->GetEvent(event_sp, llvm::None); |
| } |
| return m_event_handler_thread.IsJoinable(); |
| } |
| |
| void Debugger::StopEventHandlerThread() { |
| if (m_event_handler_thread.IsJoinable()) { |
| GetCommandInterpreter().BroadcastEvent( |
| CommandInterpreter::eBroadcastBitQuitCommandReceived); |
| m_event_handler_thread.Join(nullptr); |
| } |
| } |
| |
| lldb::thread_result_t Debugger::IOHandlerThread(lldb::thread_arg_t arg) { |
| Debugger *debugger = (Debugger *)arg; |
| debugger->ExecuteIOHandlers(); |
| debugger->StopEventHandlerThread(); |
| return NULL; |
| } |
| |
| bool Debugger::HasIOHandlerThread() { return m_io_handler_thread.IsJoinable(); } |
| |
| bool Debugger::StartIOHandlerThread() { |
| if (!m_io_handler_thread.IsJoinable()) |
| m_io_handler_thread = ThreadLauncher::LaunchThread( |
| "lldb.debugger.io-handler", IOHandlerThread, this, nullptr, |
| 8 * 1024 * 1024); // Use larger 8MB stack for this thread |
| return m_io_handler_thread.IsJoinable(); |
| } |
| |
| void Debugger::StopIOHandlerThread() { |
| if (m_io_handler_thread.IsJoinable()) { |
| if (m_input_file_sp) |
| m_input_file_sp->GetFile().Close(); |
| m_io_handler_thread.Join(nullptr); |
| } |
| } |
| |
| void Debugger::JoinIOHandlerThread() { |
| if (HasIOHandlerThread()) { |
| thread_result_t result; |
| m_io_handler_thread.Join(&result); |
| m_io_handler_thread = LLDB_INVALID_HOST_THREAD; |
| } |
| } |
| |
| Target *Debugger::GetDummyTarget() { |
| return m_target_list.GetDummyTarget(*this).get(); |
| } |
| |
| Target *Debugger::GetSelectedOrDummyTarget(bool prefer_dummy) { |
| Target *target = nullptr; |
| if (!prefer_dummy) { |
| target = m_target_list.GetSelectedTarget().get(); |
| if (target) |
| return target; |
| } |
| |
| return GetDummyTarget(); |
| } |
| |
| Status Debugger::RunREPL(LanguageType language, const char *repl_options) { |
| Status err; |
| FileSpec repl_executable; |
| |
| if (language == eLanguageTypeUnknown) { |
| std::set<LanguageType> repl_languages; |
| |
| Language::GetLanguagesSupportingREPLs(repl_languages); |
| |
| if (repl_languages.size() == 1) { |
| language = *repl_languages.begin(); |
| } else if (repl_languages.empty()) { |
| err.SetErrorStringWithFormat( |
| "LLDB isn't configured with REPL support for any languages."); |
| return err; |
| } else { |
| err.SetErrorStringWithFormat( |
| "Multiple possible REPL languages. Please specify a language."); |
| return err; |
| } |
| } |
| |
| Target *const target = |
| nullptr; // passing in an empty target means the REPL must create one |
| |
| REPLSP repl_sp(REPL::Create(err, language, this, target, repl_options)); |
| |
| if (!err.Success()) { |
| return err; |
| } |
| |
| if (!repl_sp) { |
| err.SetErrorStringWithFormat("couldn't find a REPL for %s", |
| Language::GetNameForLanguageType(language)); |
| return err; |
| } |
| |
| repl_sp->SetCompilerOptions(repl_options); |
| repl_sp->RunLoop(); |
| |
| return err; |
| } |
