forked from OSchip/llvm-project
565 lines
20 KiB
C++
565 lines
20 KiB
C++
//===-- BreakpointOptions.cpp -----------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Breakpoint/BreakpointOptions.h"
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#include "lldb/Breakpoint/StoppointCallbackContext.h"
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#include "lldb/Core/Stream.h"
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#include "lldb/Core/StringList.h"
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#include "lldb/Core/Value.h"
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Interpreter/CommandReturnObject.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/ThreadSpec.h"
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#include "llvm/ADT/STLExtras.h"
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using namespace lldb;
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using namespace lldb_private;
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const char
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*BreakpointOptions::CommandData::g_option_names[static_cast<uint32_t>(
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BreakpointOptions::CommandData::OptionNames::LastOptionName)]{
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"UserSource", "ScriptSource", "StopOnError"};
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StructuredData::ObjectSP
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BreakpointOptions::CommandData::SerializeToStructuredData() {
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size_t num_strings = user_source.GetSize();
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if (num_strings == 0 && script_source.empty()) {
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// We shouldn't serialize commands if there aren't any, return an empty sp
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// to indicate this.
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return StructuredData::ObjectSP();
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}
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StructuredData::DictionarySP options_dict_sp(
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new StructuredData::Dictionary());
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options_dict_sp->AddBooleanItem(GetKey(OptionNames::StopOnError),
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stop_on_error);
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StructuredData::ArraySP user_source_sp(new StructuredData::Array());
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for (size_t i = 0; i < num_strings; i++) {
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StructuredData::StringSP item_sp(
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new StructuredData::String(user_source[i]));
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user_source_sp->AddItem(item_sp);
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options_dict_sp->AddItem(GetKey(OptionNames::UserSource), user_source_sp);
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}
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options_dict_sp->AddStringItem(
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GetKey(OptionNames::Interpreter),
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ScriptInterpreter::LanguageToString(interpreter));
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return options_dict_sp;
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}
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std::unique_ptr<BreakpointOptions::CommandData>
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BreakpointOptions::CommandData::CreateFromStructuredData(
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const StructuredData::Dictionary &options_dict, Error &error) {
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std::unique_ptr<CommandData> data_up(new CommandData());
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bool found_something = false;
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bool success = options_dict.GetValueForKeyAsBoolean(
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GetKey(OptionNames::StopOnError), data_up->stop_on_error);
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if (success)
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found_something = true;
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std::string interpreter_str;
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ScriptLanguage interp_language;
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success = options_dict.GetValueForKeyAsString(
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GetKey(OptionNames::Interpreter), interpreter_str);
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if (!success) {
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error.SetErrorString("Missing command language value.");
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return data_up;
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}
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found_something = true;
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interp_language = ScriptInterpreter::StringToLanguage(interpreter_str);
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if (interp_language == eScriptLanguageUnknown) {
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error.SetErrorStringWithFormat("Unknown breakpoint command language: %s.",
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interpreter_str.c_str());
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return data_up;
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}
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data_up->interpreter = interp_language;
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StructuredData::Array *user_source;
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success = options_dict.GetValueForKeyAsArray(GetKey(OptionNames::UserSource),
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user_source);
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if (success) {
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found_something = true;
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size_t num_elems = user_source->GetSize();
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for (size_t i = 0; i < num_elems; i++) {
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std::string elem_string;
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success = user_source->GetItemAtIndexAsString(i, elem_string);
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if (success)
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data_up->user_source.AppendString(elem_string);
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}
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}
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if (found_something)
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return data_up;
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else
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return std::unique_ptr<BreakpointOptions::CommandData>();
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}
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const char *BreakpointOptions::g_option_names[(
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size_t)BreakpointOptions::OptionNames::LastOptionName]{
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"ConditionText", "IgnoreCount", "EnabledState", "OneShotState"};
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bool BreakpointOptions::NullCallback(void *baton,
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StoppointCallbackContext *context,
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lldb::user_id_t break_id,
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lldb::user_id_t break_loc_id) {
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return true;
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}
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//----------------------------------------------------------------------
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// BreakpointOptions constructor
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//----------------------------------------------------------------------
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BreakpointOptions::BreakpointOptions()
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: m_callback(BreakpointOptions::NullCallback), m_callback_baton_sp(),
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m_baton_is_command_baton(false), m_callback_is_synchronous(false),
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m_enabled(true), m_one_shot(false), m_ignore_count(0), m_thread_spec_ap(),
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m_condition_text(), m_condition_text_hash(0) {}
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BreakpointOptions::BreakpointOptions(const char *condition, bool enabled,
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int32_t ignore, bool one_shot)
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: m_callback(nullptr), m_baton_is_command_baton(false),
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m_callback_is_synchronous(false), m_enabled(enabled),
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m_one_shot(one_shot), m_ignore_count(ignore), m_condition_text(condition),
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m_condition_text_hash(0)
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{}
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//----------------------------------------------------------------------
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// BreakpointOptions copy constructor
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//----------------------------------------------------------------------
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BreakpointOptions::BreakpointOptions(const BreakpointOptions &rhs)
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: m_callback(rhs.m_callback), m_callback_baton_sp(rhs.m_callback_baton_sp),
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m_baton_is_command_baton(rhs.m_baton_is_command_baton),
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m_callback_is_synchronous(rhs.m_callback_is_synchronous),
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m_enabled(rhs.m_enabled), m_one_shot(rhs.m_one_shot),
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m_ignore_count(rhs.m_ignore_count), m_thread_spec_ap() {
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if (rhs.m_thread_spec_ap.get() != nullptr)
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m_thread_spec_ap.reset(new ThreadSpec(*rhs.m_thread_spec_ap.get()));
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m_condition_text = rhs.m_condition_text;
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m_condition_text_hash = rhs.m_condition_text_hash;
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}
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//----------------------------------------------------------------------
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// BreakpointOptions assignment operator
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//----------------------------------------------------------------------
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const BreakpointOptions &BreakpointOptions::
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operator=(const BreakpointOptions &rhs) {
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m_callback = rhs.m_callback;
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m_callback_baton_sp = rhs.m_callback_baton_sp;
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m_baton_is_command_baton = rhs.m_baton_is_command_baton;
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m_callback_is_synchronous = rhs.m_callback_is_synchronous;
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m_enabled = rhs.m_enabled;
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m_one_shot = rhs.m_one_shot;
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m_ignore_count = rhs.m_ignore_count;
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if (rhs.m_thread_spec_ap.get() != nullptr)
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m_thread_spec_ap.reset(new ThreadSpec(*rhs.m_thread_spec_ap.get()));
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m_condition_text = rhs.m_condition_text;
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m_condition_text_hash = rhs.m_condition_text_hash;
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return *this;
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}
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BreakpointOptions *
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BreakpointOptions::CopyOptionsNoCallback(BreakpointOptions &orig) {
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BreakpointHitCallback orig_callback = orig.m_callback;
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lldb::BatonSP orig_callback_baton_sp = orig.m_callback_baton_sp;
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bool orig_is_sync = orig.m_callback_is_synchronous;
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orig.ClearCallback();
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BreakpointOptions *ret_val = new BreakpointOptions(orig);
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orig.SetCallback(orig_callback, orig_callback_baton_sp, orig_is_sync);
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return ret_val;
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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BreakpointOptions::~BreakpointOptions() = default;
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std::unique_ptr<BreakpointOptions> BreakpointOptions::CreateFromStructuredData(
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Target &target, const StructuredData::Dictionary &options_dict,
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Error &error) {
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bool enabled = true;
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bool one_shot = false;
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int32_t ignore_count = 0;
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std::string condition_text;
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bool success = options_dict.GetValueForKeyAsBoolean(
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GetKey(OptionNames::EnabledState), enabled);
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if (!success) {
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error.SetErrorStringWithFormat("%s key is not a boolean.",
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GetKey(OptionNames::EnabledState));
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return nullptr;
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}
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success = options_dict.GetValueForKeyAsBoolean(
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GetKey(OptionNames::OneShotState), one_shot);
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if (!success) {
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error.SetErrorStringWithFormat("%s key is not a boolean.",
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GetKey(OptionNames::OneShotState));
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return nullptr;
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}
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success = options_dict.GetValueForKeyAsInteger(
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GetKey(OptionNames::IgnoreCount), ignore_count);
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if (!success) {
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error.SetErrorStringWithFormat("%s key is not an integer.",
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GetKey(OptionNames::IgnoreCount));
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return nullptr;
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}
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std::unique_ptr<CommandData> cmd_data_up;
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StructuredData::Dictionary *cmds_dict;
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success = options_dict.GetValueForKeyAsDictionary(
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CommandData::GetSerializationKey(), cmds_dict);
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if (success && cmds_dict) {
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Error cmds_error;
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cmd_data_up = CommandData::CreateFromStructuredData(*cmds_dict, cmds_error);
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if (cmds_error.Fail()) {
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error.SetErrorStringWithFormat(
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"Failed to deserialize breakpoint command options: %s.",
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cmds_error.AsCString());
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return nullptr;
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}
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}
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auto bp_options = llvm::make_unique<BreakpointOptions>(
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condition_text.c_str(), enabled, ignore_count, one_shot);
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if (cmd_data_up.get()) {
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if (cmd_data_up->interpreter == eScriptLanguageNone)
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bp_options->SetCommandDataCallback(cmd_data_up);
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else {
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ScriptInterpreter *interp =
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target.GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
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if (!interp) {
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error.SetErrorStringWithFormat(
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"Can't set script commands - no script interpreter");
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return nullptr;
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}
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if (interp->GetLanguage() != cmd_data_up->interpreter) {
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error.SetErrorStringWithFormat(
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"Current script language doesn't match breakpoint's language: %s",
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ScriptInterpreter::LanguageToString(cmd_data_up->interpreter)
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.c_str());
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return nullptr;
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}
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Error script_error;
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script_error =
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interp->SetBreakpointCommandCallback(bp_options.get(), cmd_data_up);
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if (script_error.Fail()) {
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error.SetErrorStringWithFormat("Error generating script callback: %s.",
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error.AsCString());
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return nullptr;
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}
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}
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}
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StructuredData::Dictionary *thread_spec_dict;
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success = options_dict.GetValueForKeyAsDictionary(
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ThreadSpec::GetSerializationKey(), thread_spec_dict);
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if (success) {
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Error thread_spec_error;
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std::unique_ptr<ThreadSpec> thread_spec_up =
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ThreadSpec::CreateFromStructuredData(*thread_spec_dict,
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thread_spec_error);
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if (thread_spec_error.Fail()) {
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error.SetErrorStringWithFormat(
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"Failed to deserialize breakpoint thread spec options: %s.",
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thread_spec_error.AsCString());
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return nullptr;
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}
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bp_options->SetThreadSpec(thread_spec_up);
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}
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return bp_options;
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}
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StructuredData::ObjectSP BreakpointOptions::SerializeToStructuredData() {
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StructuredData::DictionarySP options_dict_sp(
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new StructuredData::Dictionary());
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options_dict_sp->AddBooleanItem(GetKey(OptionNames::EnabledState), m_enabled);
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options_dict_sp->AddBooleanItem(GetKey(OptionNames::OneShotState),
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m_one_shot);
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options_dict_sp->AddIntegerItem(GetKey(OptionNames::IgnoreCount),
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m_ignore_count);
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options_dict_sp->AddStringItem(GetKey(OptionNames::ConditionText),
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m_condition_text);
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if (m_baton_is_command_baton) {
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auto cmd_baton =
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std::static_pointer_cast<CommandBaton>(m_callback_baton_sp);
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StructuredData::ObjectSP commands_sp =
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cmd_baton->getItem()->SerializeToStructuredData();
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if (commands_sp) {
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options_dict_sp->AddItem(
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BreakpointOptions::CommandData::GetSerializationKey(), commands_sp);
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}
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}
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if (m_thread_spec_ap) {
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StructuredData::ObjectSP thread_spec_sp =
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m_thread_spec_ap->SerializeToStructuredData();
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options_dict_sp->AddItem(ThreadSpec::GetSerializationKey(), thread_spec_sp);
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}
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return options_dict_sp;
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}
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//------------------------------------------------------------------
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// Callbacks
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//------------------------------------------------------------------
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void BreakpointOptions::SetCallback(BreakpointHitCallback callback,
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const lldb::BatonSP &callback_baton_sp,
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bool callback_is_synchronous) {
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// FIXME: This seems unsafe. If BatonSP actually *is* a CommandBaton, but
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// in a shared_ptr<Baton> instead of a shared_ptr<CommandBaton>, then we
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// will set m_baton_is_command_baton to false, which is incorrect.
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// One possible solution is to make the base Baton class provide a method
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// such as:
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// virtual StringRef getBatonId() const { return ""; }
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// and have CommandBaton override this to return something unique, and then
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// check for it here. Another option might be to make Baton using the llvm
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// casting infrastructure, so that we could write something like:
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// if (llvm::isa<CommandBaton>(callback_baton_sp))
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// at relevant callsites instead of storing a boolean.
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m_callback_is_synchronous = callback_is_synchronous;
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m_callback = callback;
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m_callback_baton_sp = callback_baton_sp;
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m_baton_is_command_baton = false;
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}
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void BreakpointOptions::SetCallback(
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BreakpointHitCallback callback,
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const BreakpointOptions::CommandBatonSP &callback_baton_sp,
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bool callback_is_synchronous) {
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m_callback_is_synchronous = callback_is_synchronous;
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m_callback = callback;
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m_callback_baton_sp = callback_baton_sp;
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m_baton_is_command_baton = true;
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}
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void BreakpointOptions::ClearCallback() {
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m_callback = BreakpointOptions::NullCallback;
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m_callback_is_synchronous = false;
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m_callback_baton_sp.reset();
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m_baton_is_command_baton = false;
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}
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Baton *BreakpointOptions::GetBaton() { return m_callback_baton_sp.get(); }
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const Baton *BreakpointOptions::GetBaton() const {
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return m_callback_baton_sp.get();
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}
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bool BreakpointOptions::InvokeCallback(StoppointCallbackContext *context,
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lldb::user_id_t break_id,
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lldb::user_id_t break_loc_id) {
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if (m_callback && context->is_synchronous == IsCallbackSynchronous()) {
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return m_callback(m_callback_baton_sp ? m_callback_baton_sp->data()
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: nullptr,
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context, break_id, break_loc_id);
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} else
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return true;
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}
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bool BreakpointOptions::HasCallback() const {
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return m_callback != BreakpointOptions::NullCallback;
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}
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bool BreakpointOptions::GetCommandLineCallbacks(StringList &command_list) {
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if (!HasCallback())
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return false;
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if (!m_baton_is_command_baton)
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return false;
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auto cmd_baton = std::static_pointer_cast<CommandBaton>(m_callback_baton_sp);
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CommandData *data = cmd_baton->getItem();
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if (!data)
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return false;
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command_list = data->user_source;
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return true;
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}
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void BreakpointOptions::SetCondition(const char *condition) {
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if (!condition)
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condition = "";
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m_condition_text.assign(condition);
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std::hash<std::string> hasher;
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m_condition_text_hash = hasher(m_condition_text);
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}
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const char *BreakpointOptions::GetConditionText(size_t *hash) const {
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if (!m_condition_text.empty()) {
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if (hash)
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*hash = m_condition_text_hash;
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return m_condition_text.c_str();
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} else {
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return nullptr;
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}
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}
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const ThreadSpec *BreakpointOptions::GetThreadSpecNoCreate() const {
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return m_thread_spec_ap.get();
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}
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ThreadSpec *BreakpointOptions::GetThreadSpec() {
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if (m_thread_spec_ap.get() == nullptr)
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m_thread_spec_ap.reset(new ThreadSpec());
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return m_thread_spec_ap.get();
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}
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void BreakpointOptions::SetThreadID(lldb::tid_t thread_id) {
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GetThreadSpec()->SetTID(thread_id);
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}
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void BreakpointOptions::SetThreadSpec(
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std::unique_ptr<ThreadSpec> &thread_spec_up) {
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m_thread_spec_ap = std::move(thread_spec_up);
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}
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void BreakpointOptions::GetDescription(Stream *s,
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lldb::DescriptionLevel level) const {
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// Figure out if there are any options not at their default value, and only
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// print
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// anything if there are:
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if (m_ignore_count != 0 || !m_enabled || m_one_shot ||
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(GetThreadSpecNoCreate() != nullptr &&
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GetThreadSpecNoCreate()->HasSpecification())) {
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if (level == lldb::eDescriptionLevelVerbose) {
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s->EOL();
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s->IndentMore();
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s->Indent();
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s->PutCString("Breakpoint Options:\n");
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s->IndentMore();
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s->Indent();
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} else
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s->PutCString(" Options: ");
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if (m_ignore_count > 0)
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s->Printf("ignore: %d ", m_ignore_count);
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s->Printf("%sabled ", m_enabled ? "en" : "dis");
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if (m_one_shot)
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s->Printf("one-shot ");
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if (m_thread_spec_ap.get())
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m_thread_spec_ap->GetDescription(s, level);
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if (level == lldb::eDescriptionLevelFull) {
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s->IndentLess();
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s->IndentMore();
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}
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}
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if (m_callback_baton_sp.get()) {
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if (level != eDescriptionLevelBrief) {
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s->EOL();
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m_callback_baton_sp->GetDescription(s, level);
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}
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}
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if (!m_condition_text.empty()) {
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if (level != eDescriptionLevelBrief) {
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s->EOL();
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s->Printf("Condition: %s\n", m_condition_text.c_str());
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}
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}
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}
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|
|
|
void BreakpointOptions::CommandBaton::GetDescription(
|
|
Stream *s, lldb::DescriptionLevel level) const {
|
|
const CommandData *data = getItem();
|
|
|
|
if (level == eDescriptionLevelBrief) {
|
|
s->Printf(", commands = %s",
|
|
(data && data->user_source.GetSize() > 0) ? "yes" : "no");
|
|
return;
|
|
}
|
|
|
|
s->IndentMore();
|
|
s->Indent("Breakpoint commands");
|
|
if (data->interpreter != eScriptLanguageNone)
|
|
s->Printf(" (%s):\n",
|
|
ScriptInterpreter::LanguageToString(data->interpreter).c_str());
|
|
else
|
|
s->PutCString(":\n");
|
|
|
|
s->IndentMore();
|
|
if (data && data->user_source.GetSize() > 0) {
|
|
const size_t num_strings = data->user_source.GetSize();
|
|
for (size_t i = 0; i < num_strings; ++i) {
|
|
s->Indent(data->user_source.GetStringAtIndex(i));
|
|
s->EOL();
|
|
}
|
|
} else {
|
|
s->PutCString("No commands.\n");
|
|
}
|
|
s->IndentLess();
|
|
s->IndentLess();
|
|
}
|
|
|
|
void BreakpointOptions::SetCommandDataCallback(
|
|
std::unique_ptr<CommandData> &cmd_data) {
|
|
cmd_data->interpreter = eScriptLanguageNone;
|
|
auto baton_sp = std::make_shared<CommandBaton>(std::move(cmd_data));
|
|
SetCallback(BreakpointOptions::BreakpointOptionsCallbackFunction, baton_sp);
|
|
}
|
|
|
|
bool BreakpointOptions::BreakpointOptionsCallbackFunction(
|
|
void *baton, StoppointCallbackContext *context, lldb::user_id_t break_id,
|
|
lldb::user_id_t break_loc_id) {
|
|
bool ret_value = true;
|
|
if (baton == nullptr)
|
|
return true;
|
|
|
|
CommandData *data = (CommandData *)baton;
|
|
StringList &commands = data->user_source;
|
|
|
|
if (commands.GetSize() > 0) {
|
|
ExecutionContext exe_ctx(context->exe_ctx_ref);
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (target) {
|
|
CommandReturnObject result;
|
|
Debugger &debugger = target->GetDebugger();
|
|
// Rig up the results secondary output stream to the debugger's, so the
|
|
// output will come out synchronously
|
|
// if the debugger is set up that way.
|
|
|
|
StreamSP output_stream(debugger.GetAsyncOutputStream());
|
|
StreamSP error_stream(debugger.GetAsyncErrorStream());
|
|
result.SetImmediateOutputStream(output_stream);
|
|
result.SetImmediateErrorStream(error_stream);
|
|
|
|
CommandInterpreterRunOptions options;
|
|
options.SetStopOnContinue(true);
|
|
options.SetStopOnError(data->stop_on_error);
|
|
options.SetEchoCommands(true);
|
|
options.SetPrintResults(true);
|
|
options.SetAddToHistory(false);
|
|
|
|
debugger.GetCommandInterpreter().HandleCommands(commands, &exe_ctx,
|
|
options, result);
|
|
result.GetImmediateOutputStream()->Flush();
|
|
result.GetImmediateErrorStream()->Flush();
|
|
}
|
|
}
|
|
return ret_value;
|
|
}
|