2022-05-31 01:35:01 +02:00
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// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <atomic>
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#include <numeric>
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#include <optional>
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#include <thread>
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2022-05-31 20:37:37 +02:00
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#include <boost/algorithm/string.hpp>
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2022-05-31 01:35:01 +02:00
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#include "common/hex_util.h"
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#include "common/logging/log.h"
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#include "common/scope_exit.h"
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#include "core/arm/arm_interface.h"
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#include "core/core.h"
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#include "core/debugger/gdbstub.h"
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#include "core/debugger/gdbstub_arch.h"
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#include "core/hle/kernel/k_page_table.h"
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#include "core/hle/kernel/k_process.h"
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#include "core/hle/kernel/k_thread.h"
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#include "core/loader/loader.h"
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#include "core/memory.h"
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namespace Core {
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constexpr char GDB_STUB_START = '$';
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constexpr char GDB_STUB_END = '#';
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constexpr char GDB_STUB_ACK = '+';
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constexpr char GDB_STUB_NACK = '-';
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constexpr char GDB_STUB_INT3 = 0x03;
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constexpr int GDB_STUB_SIGTRAP = 5;
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constexpr char GDB_STUB_REPLY_ERR[] = "E01";
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constexpr char GDB_STUB_REPLY_OK[] = "OK";
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constexpr char GDB_STUB_REPLY_EMPTY[] = "";
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2022-06-01 16:54:44 +02:00
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static u8 CalculateChecksum(std::string_view data) {
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return std::accumulate(data.begin(), data.end(), u8{0},
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[](u8 lhs, u8 rhs) { return static_cast<u8>(lhs + rhs); });
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}
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static std::string EscapeGDB(std::string_view data) {
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std::string escaped;
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escaped.reserve(data.size());
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for (char c : data) {
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switch (c) {
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case '#':
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escaped += "}\x03";
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break;
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case '$':
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escaped += "}\x04";
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break;
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case '*':
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escaped += "}\x0a";
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break;
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case '}':
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escaped += "}\x5d";
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break;
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default:
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escaped += c;
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break;
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}
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}
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return escaped;
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}
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static std::string EscapeXML(std::string_view data) {
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std::string escaped;
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escaped.reserve(data.size());
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for (char c : data) {
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switch (c) {
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case '&':
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escaped += "&";
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break;
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case '"':
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escaped += """;
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break;
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case '<':
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escaped += "<";
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break;
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case '>':
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escaped += ">";
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break;
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default:
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escaped += c;
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break;
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}
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}
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return escaped;
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}
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2022-05-31 01:35:01 +02:00
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GDBStub::GDBStub(DebuggerBackend& backend_, Core::System& system_)
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: DebuggerFrontend(backend_), system{system_} {
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if (system.CurrentProcess()->Is64BitProcess()) {
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arch = std::make_unique<GDBStubA64>();
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} else {
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arch = std::make_unique<GDBStubA32>();
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}
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}
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GDBStub::~GDBStub() = default;
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void GDBStub::Connected() {}
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void GDBStub::Stopped(Kernel::KThread* thread) {
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SendReply(arch->ThreadStatus(thread, GDB_STUB_SIGTRAP));
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}
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std::vector<DebuggerAction> GDBStub::ClientData(std::span<const u8> data) {
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std::vector<DebuggerAction> actions;
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current_command.insert(current_command.end(), data.begin(), data.end());
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while (current_command.size() != 0) {
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ProcessData(actions);
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}
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return actions;
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}
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void GDBStub::ProcessData(std::vector<DebuggerAction>& actions) {
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const char c{current_command[0]};
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// Acknowledgement
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if (c == GDB_STUB_ACK || c == GDB_STUB_NACK) {
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current_command.erase(current_command.begin());
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return;
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}
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// Interrupt
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if (c == GDB_STUB_INT3) {
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LOG_INFO(Debug_GDBStub, "Received interrupt");
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current_command.erase(current_command.begin());
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actions.push_back(DebuggerAction::Interrupt);
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SendStatus(GDB_STUB_ACK);
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return;
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}
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// Otherwise, require the data to be the start of a command
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if (c != GDB_STUB_START) {
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LOG_ERROR(Debug_GDBStub, "Invalid command buffer contents: {}", current_command.data());
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current_command.clear();
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SendStatus(GDB_STUB_NACK);
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return;
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}
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// Continue reading until command is complete
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while (CommandEnd() == current_command.end()) {
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const auto new_data{backend.ReadFromClient()};
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current_command.insert(current_command.end(), new_data.begin(), new_data.end());
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}
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// Execute and respond to GDB
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const auto command{DetachCommand()};
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if (command) {
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SendStatus(GDB_STUB_ACK);
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ExecuteCommand(*command, actions);
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} else {
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SendStatus(GDB_STUB_NACK);
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}
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}
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void GDBStub::ExecuteCommand(std::string_view packet, std::vector<DebuggerAction>& actions) {
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LOG_TRACE(Debug_GDBStub, "Executing command: {}", packet);
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if (packet.length() == 0) {
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SendReply(GDB_STUB_REPLY_ERR);
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return;
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}
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2022-05-31 20:37:37 +02:00
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if (packet.starts_with("vCont")) {
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HandleVCont(packet.substr(5), actions);
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return;
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}
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2022-05-31 01:35:01 +02:00
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std::string_view command{packet.substr(1, packet.size())};
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switch (packet[0]) {
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case 'H': {
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Kernel::KThread* thread{nullptr};
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s64 thread_id{strtoll(command.data() + 1, nullptr, 16)};
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if (thread_id >= 1) {
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thread = GetThreadByID(thread_id);
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2022-05-31 20:37:37 +02:00
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} else {
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thread = backend.GetActiveThread();
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2022-05-31 01:35:01 +02:00
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}
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if (thread) {
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SendReply(GDB_STUB_REPLY_OK);
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backend.SetActiveThread(thread);
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} else {
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SendReply(GDB_STUB_REPLY_ERR);
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}
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break;
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}
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case 'T': {
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s64 thread_id{strtoll(command.data(), nullptr, 16)};
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if (GetThreadByID(thread_id)) {
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SendReply(GDB_STUB_REPLY_OK);
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} else {
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SendReply(GDB_STUB_REPLY_ERR);
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}
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break;
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}
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2022-05-31 20:37:37 +02:00
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case 'Q':
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2022-05-31 01:35:01 +02:00
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case 'q':
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HandleQuery(command);
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break;
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case '?':
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SendReply(arch->ThreadStatus(backend.GetActiveThread(), GDB_STUB_SIGTRAP));
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break;
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case 'k':
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LOG_INFO(Debug_GDBStub, "Shutting down emulation");
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actions.push_back(DebuggerAction::ShutdownEmulation);
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break;
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case 'g':
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SendReply(arch->ReadRegisters(backend.GetActiveThread()));
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break;
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case 'G':
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arch->WriteRegisters(backend.GetActiveThread(), command);
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SendReply(GDB_STUB_REPLY_OK);
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break;
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case 'p': {
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const size_t reg{static_cast<size_t>(strtoll(command.data(), nullptr, 16))};
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SendReply(arch->RegRead(backend.GetActiveThread(), reg));
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break;
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}
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case 'P': {
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const auto sep{std::find(command.begin(), command.end(), '=') - command.begin() + 1};
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const size_t reg{static_cast<size_t>(strtoll(command.data(), nullptr, 16))};
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arch->RegWrite(backend.GetActiveThread(), reg, std::string_view(command).substr(sep));
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break;
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}
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case 'm': {
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const auto sep{std::find(command.begin(), command.end(), ',') - command.begin() + 1};
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const size_t addr{static_cast<size_t>(strtoll(command.data(), nullptr, 16))};
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const size_t size{static_cast<size_t>(strtoll(command.data() + sep, nullptr, 16))};
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if (system.Memory().IsValidVirtualAddressRange(addr, size)) {
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std::vector<u8> mem(size);
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system.Memory().ReadBlock(addr, mem.data(), size);
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SendReply(Common::HexToString(mem));
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} else {
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SendReply(GDB_STUB_REPLY_ERR);
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}
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break;
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}
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case 'M': {
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const auto size_sep{std::find(command.begin(), command.end(), ',') - command.begin() + 1};
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const auto mem_sep{std::find(command.begin(), command.end(), ':') - command.begin() + 1};
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const size_t addr{static_cast<size_t>(strtoll(command.data(), nullptr, 16))};
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const size_t size{static_cast<size_t>(strtoll(command.data() + size_sep, nullptr, 16))};
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const auto mem_substr{std::string_view(command).substr(mem_sep)};
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const auto mem{Common::HexStringToVector(mem_substr, false)};
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if (system.Memory().IsValidVirtualAddressRange(addr, size)) {
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system.Memory().WriteBlock(addr, mem.data(), size);
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system.InvalidateCpuInstructionCacheRange(addr, size);
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SendReply(GDB_STUB_REPLY_OK);
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} else {
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SendReply(GDB_STUB_REPLY_ERR);
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}
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break;
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}
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case 's':
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2022-05-31 20:37:37 +02:00
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actions.push_back(DebuggerAction::StepThreadLocked);
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2022-05-31 01:35:01 +02:00
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break;
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case 'C':
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case 'c':
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actions.push_back(DebuggerAction::Continue);
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break;
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case 'Z': {
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const auto addr_sep{std::find(command.begin(), command.end(), ',') - command.begin() + 1};
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const size_t addr{static_cast<size_t>(strtoll(command.data() + addr_sep, nullptr, 16))};
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if (system.Memory().IsValidVirtualAddress(addr)) {
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replaced_instructions[addr] = system.Memory().Read32(addr);
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system.Memory().Write32(addr, arch->BreakpointInstruction());
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system.InvalidateCpuInstructionCacheRange(addr, sizeof(u32));
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SendReply(GDB_STUB_REPLY_OK);
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} else {
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SendReply(GDB_STUB_REPLY_ERR);
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}
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break;
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}
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case 'z': {
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const auto addr_sep{std::find(command.begin(), command.end(), ',') - command.begin() + 1};
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const size_t addr{static_cast<size_t>(strtoll(command.data() + addr_sep, nullptr, 16))};
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const auto orig_insn{replaced_instructions.find(addr)};
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if (system.Memory().IsValidVirtualAddress(addr) &&
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orig_insn != replaced_instructions.end()) {
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system.Memory().Write32(addr, orig_insn->second);
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system.InvalidateCpuInstructionCacheRange(addr, sizeof(u32));
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replaced_instructions.erase(addr);
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SendReply(GDB_STUB_REPLY_OK);
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} else {
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SendReply(GDB_STUB_REPLY_ERR);
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}
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break;
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}
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default:
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SendReply(GDB_STUB_REPLY_EMPTY);
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break;
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}
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}
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2022-06-01 16:54:44 +02:00
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// Structure offsets are from Atmosphere
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// See osdbg_thread_local_region.os.horizon.hpp and osdbg_thread_type.os.horizon.hpp
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static std::optional<std::string> GetNameFromThreadType32(Core::Memory::Memory& memory,
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const Kernel::KThread* thread) {
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// Read thread type from TLS
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const VAddr tls_thread_type{memory.Read32(thread->GetTLSAddress() + 0x1fc)};
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const VAddr argument_thread_type{thread->GetArgument()};
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if (argument_thread_type && tls_thread_type != argument_thread_type) {
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// Probably not created by nnsdk, no name available.
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return std::nullopt;
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}
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if (!tls_thread_type) {
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return std::nullopt;
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}
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const u16 version{memory.Read16(tls_thread_type + 0x26)};
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VAddr name_pointer{};
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if (version == 1) {
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name_pointer = memory.Read32(tls_thread_type + 0xe4);
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} else {
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name_pointer = memory.Read32(tls_thread_type + 0xe8);
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}
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if (!name_pointer) {
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// No name provided.
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return std::nullopt;
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}
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return memory.ReadCString(name_pointer, 256);
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}
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static std::optional<std::string> GetNameFromThreadType64(Core::Memory::Memory& memory,
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const Kernel::KThread* thread) {
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// Read thread type from TLS
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const VAddr tls_thread_type{memory.Read64(thread->GetTLSAddress() + 0x1f8)};
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const VAddr argument_thread_type{thread->GetArgument()};
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if (argument_thread_type && tls_thread_type != argument_thread_type) {
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// Probably not created by nnsdk, no name available.
|
|
|
|
return std::nullopt;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!tls_thread_type) {
|
|
|
|
return std::nullopt;
|
|
|
|
}
|
|
|
|
|
|
|
|
const u16 version{memory.Read16(tls_thread_type + 0x46)};
|
|
|
|
VAddr name_pointer{};
|
|
|
|
if (version == 1) {
|
|
|
|
name_pointer = memory.Read64(tls_thread_type + 0x1a0);
|
|
|
|
} else {
|
|
|
|
name_pointer = memory.Read64(tls_thread_type + 0x1a8);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!name_pointer) {
|
|
|
|
// No name provided.
|
|
|
|
return std::nullopt;
|
|
|
|
}
|
|
|
|
|
|
|
|
return memory.ReadCString(name_pointer, 256);
|
|
|
|
}
|
|
|
|
|
|
|
|
static std::optional<std::string> GetThreadName(Core::System& system,
|
|
|
|
const Kernel::KThread* thread) {
|
|
|
|
if (system.CurrentProcess()->Is64BitProcess()) {
|
|
|
|
return GetNameFromThreadType64(system.Memory(), thread);
|
|
|
|
} else {
|
|
|
|
return GetNameFromThreadType32(system.Memory(), thread);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2022-05-31 20:37:37 +02:00
|
|
|
static std::string_view GetThreadWaitReason(const Kernel::KThread* thread) {
|
|
|
|
switch (thread->GetWaitReasonForDebugging()) {
|
|
|
|
case Kernel::ThreadWaitReasonForDebugging::Sleep:
|
|
|
|
return "Sleep";
|
|
|
|
case Kernel::ThreadWaitReasonForDebugging::IPC:
|
|
|
|
return "IPC";
|
|
|
|
case Kernel::ThreadWaitReasonForDebugging::Synchronization:
|
|
|
|
return "Synchronization";
|
|
|
|
case Kernel::ThreadWaitReasonForDebugging::ConditionVar:
|
|
|
|
return "ConditionVar";
|
|
|
|
case Kernel::ThreadWaitReasonForDebugging::Arbitration:
|
|
|
|
return "Arbitration";
|
|
|
|
case Kernel::ThreadWaitReasonForDebugging::Suspended:
|
|
|
|
return "Suspended";
|
|
|
|
default:
|
|
|
|
return "Unknown";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static std::string GetThreadState(const Kernel::KThread* thread) {
|
|
|
|
switch (thread->GetState()) {
|
|
|
|
case Kernel::ThreadState::Initialized:
|
|
|
|
return "Initialized";
|
|
|
|
case Kernel::ThreadState::Waiting:
|
|
|
|
return fmt::format("Waiting ({})", GetThreadWaitReason(thread));
|
|
|
|
case Kernel::ThreadState::Runnable:
|
|
|
|
return "Runnable";
|
|
|
|
case Kernel::ThreadState::Terminated:
|
|
|
|
return "Terminated";
|
|
|
|
default:
|
|
|
|
return "Unknown";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2022-05-31 01:35:01 +02:00
|
|
|
void GDBStub::HandleQuery(std::string_view command) {
|
|
|
|
if (command.starts_with("TStatus")) {
|
|
|
|
// no tracepoint support
|
|
|
|
SendReply("T0");
|
|
|
|
} else if (command.starts_with("Supported")) {
|
2022-05-31 20:37:37 +02:00
|
|
|
SendReply("PacketSize=4000;qXfer:features:read+;qXfer:threads:read+;qXfer:libraries:read+;"
|
|
|
|
"vContSupported+;QStartNoAckMode+");
|
2022-05-31 01:35:01 +02:00
|
|
|
} else if (command.starts_with("Xfer:features:read:target.xml:")) {
|
|
|
|
const auto offset{command.substr(30)};
|
|
|
|
const auto amount{command.substr(command.find(',') + 1)};
|
|
|
|
|
|
|
|
const auto offset_val{static_cast<u64>(strtoll(offset.data(), nullptr, 16))};
|
|
|
|
const auto amount_val{static_cast<u64>(strtoll(amount.data(), nullptr, 16))};
|
|
|
|
const auto target_xml{arch->GetTargetXML()};
|
|
|
|
|
|
|
|
if (offset_val + amount_val > target_xml.size()) {
|
|
|
|
SendReply("l" + target_xml.substr(offset_val));
|
|
|
|
} else {
|
|
|
|
SendReply("m" + target_xml.substr(offset_val, amount_val));
|
|
|
|
}
|
|
|
|
} else if (command.starts_with("Offsets")) {
|
|
|
|
Loader::AppLoader::Modules modules;
|
|
|
|
system.GetAppLoader().ReadNSOModules(modules);
|
|
|
|
|
|
|
|
const auto main = std::find_if(modules.begin(), modules.end(),
|
|
|
|
[](const auto& key) { return key.second == "main"; });
|
|
|
|
if (main != modules.end()) {
|
|
|
|
SendReply(fmt::format("TextSeg={:x}", main->first));
|
|
|
|
} else {
|
|
|
|
SendReply(fmt::format("TextSeg={:x}",
|
|
|
|
system.CurrentProcess()->PageTable().GetCodeRegionStart()));
|
|
|
|
}
|
|
|
|
} else if (command.starts_with("fThreadInfo")) {
|
|
|
|
// beginning of list
|
|
|
|
const auto& threads = system.GlobalSchedulerContext().GetThreadList();
|
|
|
|
std::vector<std::string> thread_ids;
|
|
|
|
for (const auto& thread : threads) {
|
|
|
|
thread_ids.push_back(fmt::format("{:x}", thread->GetThreadID()));
|
|
|
|
}
|
|
|
|
SendReply(fmt::format("m{}", fmt::join(thread_ids, ",")));
|
|
|
|
} else if (command.starts_with("sThreadInfo")) {
|
|
|
|
// end of list
|
|
|
|
SendReply("l");
|
2022-06-01 16:54:44 +02:00
|
|
|
} else if (command.starts_with("Xfer:threads:read::")) {
|
2022-05-31 01:35:01 +02:00
|
|
|
std::string buffer;
|
2022-06-01 16:54:44 +02:00
|
|
|
buffer += R"(<?xml version="1.0"?>)";
|
2022-05-31 01:35:01 +02:00
|
|
|
buffer += "<threads>";
|
|
|
|
|
|
|
|
const auto& threads = system.GlobalSchedulerContext().GetThreadList();
|
2022-06-01 16:54:44 +02:00
|
|
|
for (const auto* thread : threads) {
|
|
|
|
auto thread_name{GetThreadName(system, thread)};
|
|
|
|
if (!thread_name) {
|
|
|
|
thread_name = fmt::format("Thread {:d}", thread->GetThreadID());
|
|
|
|
}
|
|
|
|
|
|
|
|
buffer += fmt::format(R"(<thread id="{:x}" core="{:d}" name="{}">{}</thread>)",
|
2022-05-31 20:37:37 +02:00
|
|
|
thread->GetThreadID(), thread->GetActiveCore(),
|
2022-06-01 16:54:44 +02:00
|
|
|
EscapeXML(*thread_name), GetThreadState(thread));
|
2022-05-31 01:35:01 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
buffer += "</threads>";
|
2022-06-01 16:54:44 +02:00
|
|
|
|
|
|
|
const auto offset{command.substr(19)};
|
|
|
|
const auto amount{command.substr(command.find(',') + 1)};
|
|
|
|
|
|
|
|
const auto offset_val{static_cast<u64>(strtoll(offset.data(), nullptr, 16))};
|
|
|
|
const auto amount_val{static_cast<u64>(strtoll(amount.data(), nullptr, 16))};
|
|
|
|
|
|
|
|
if (offset_val + amount_val > buffer.size()) {
|
|
|
|
SendReply("l" + buffer.substr(offset_val));
|
|
|
|
} else {
|
|
|
|
SendReply("m" + buffer.substr(offset_val, amount_val));
|
|
|
|
}
|
2022-05-31 20:37:37 +02:00
|
|
|
} else if (command.starts_with("Attached")) {
|
|
|
|
SendReply("0");
|
|
|
|
} else if (command.starts_with("StartNoAckMode")) {
|
|
|
|
no_ack = true;
|
|
|
|
SendReply(GDB_STUB_REPLY_OK);
|
2022-05-31 01:35:01 +02:00
|
|
|
} else {
|
|
|
|
SendReply(GDB_STUB_REPLY_EMPTY);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2022-05-31 20:37:37 +02:00
|
|
|
void GDBStub::HandleVCont(std::string_view command, std::vector<DebuggerAction>& actions) {
|
|
|
|
if (command == "?") {
|
|
|
|
// Continuing and stepping are supported
|
|
|
|
// (signal is ignored, but required for GDB to use vCont)
|
|
|
|
SendReply("vCont;c;C;s;S");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
Kernel::KThread* stepped_thread{nullptr};
|
|
|
|
bool lock_execution{true};
|
|
|
|
|
|
|
|
std::vector<std::string> entries;
|
|
|
|
boost::split(entries, command.substr(1), boost::is_any_of(";"));
|
|
|
|
for (const auto& thread_action : entries) {
|
|
|
|
std::vector<std::string> parts;
|
|
|
|
boost::split(parts, thread_action, boost::is_any_of(":"));
|
|
|
|
|
|
|
|
if (parts.size() == 1 && (parts[0] == "c" || parts[0].starts_with("C"))) {
|
|
|
|
lock_execution = false;
|
|
|
|
}
|
|
|
|
if (parts.size() == 2 && (parts[0] == "s" || parts[0].starts_with("S"))) {
|
|
|
|
stepped_thread = GetThreadByID(strtoll(parts[1].data(), nullptr, 16));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (stepped_thread) {
|
|
|
|
backend.SetActiveThread(stepped_thread);
|
|
|
|
actions.push_back(lock_execution ? DebuggerAction::StepThreadLocked
|
|
|
|
: DebuggerAction::StepThreadUnlocked);
|
|
|
|
} else {
|
|
|
|
actions.push_back(DebuggerAction::Continue);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2022-05-31 01:35:01 +02:00
|
|
|
Kernel::KThread* GDBStub::GetThreadByID(u64 thread_id) {
|
|
|
|
const auto& threads{system.GlobalSchedulerContext().GetThreadList()};
|
|
|
|
for (auto* thread : threads) {
|
|
|
|
if (thread->GetThreadID() == thread_id) {
|
|
|
|
return thread;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
std::vector<char>::const_iterator GDBStub::CommandEnd() const {
|
|
|
|
// Find the end marker
|
|
|
|
const auto end{std::find(current_command.begin(), current_command.end(), GDB_STUB_END)};
|
|
|
|
|
|
|
|
// Require the checksum to be present
|
|
|
|
return std::min(end + 2, current_command.end());
|
|
|
|
}
|
|
|
|
|
|
|
|
std::optional<std::string> GDBStub::DetachCommand() {
|
|
|
|
// Slice the string part from the beginning to the end marker
|
|
|
|
const auto end{CommandEnd()};
|
|
|
|
|
|
|
|
// Extract possible command data
|
|
|
|
std::string data(current_command.data(), end - current_command.begin() + 1);
|
|
|
|
|
|
|
|
// Shift over the remaining contents
|
|
|
|
current_command.erase(current_command.begin(), end + 1);
|
|
|
|
|
|
|
|
// Validate received command
|
|
|
|
if (data[0] != GDB_STUB_START) {
|
|
|
|
LOG_ERROR(Debug_GDBStub, "Invalid start data: {}", data[0]);
|
|
|
|
return std::nullopt;
|
|
|
|
}
|
|
|
|
|
|
|
|
u8 calculated = CalculateChecksum(std::string_view(data).substr(1, data.size() - 4));
|
|
|
|
u8 received = static_cast<u8>(strtoll(data.data() + data.size() - 2, nullptr, 16));
|
|
|
|
|
|
|
|
// Verify checksum
|
|
|
|
if (calculated != received) {
|
|
|
|
LOG_ERROR(Debug_GDBStub, "Checksum mismatch: calculated {:02x}, received {:02x}",
|
|
|
|
calculated, received);
|
|
|
|
return std::nullopt;
|
|
|
|
}
|
|
|
|
|
|
|
|
return data.substr(1, data.size() - 4);
|
|
|
|
}
|
|
|
|
|
|
|
|
void GDBStub::SendReply(std::string_view data) {
|
2022-06-01 16:54:44 +02:00
|
|
|
const auto escaped{EscapeGDB(data)};
|
|
|
|
const auto output{fmt::format("{}{}{}{:02x}", GDB_STUB_START, escaped, GDB_STUB_END,
|
|
|
|
CalculateChecksum(escaped))};
|
2022-05-31 01:35:01 +02:00
|
|
|
LOG_TRACE(Debug_GDBStub, "Writing reply: {}", output);
|
|
|
|
|
|
|
|
// C++ string support is complete rubbish
|
|
|
|
const u8* output_begin = reinterpret_cast<const u8*>(output.data());
|
|
|
|
const u8* output_end = output_begin + output.size();
|
|
|
|
backend.WriteToClient(std::span<const u8>(output_begin, output_end));
|
|
|
|
}
|
|
|
|
|
|
|
|
void GDBStub::SendStatus(char status) {
|
2022-05-31 20:37:37 +02:00
|
|
|
if (no_ack) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2022-05-31 01:35:01 +02:00
|
|
|
std::array<u8, 1> buf = {static_cast<u8>(status)};
|
|
|
|
LOG_TRACE(Debug_GDBStub, "Writing status: {}", status);
|
|
|
|
backend.WriteToClient(buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
} // namespace Core
|