gdbstub: add ams monitor commands
This commit is contained in:
Liam
parent
ceb829cc33
commit
18123ff958
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@ -606,6 +606,8 @@ void GDBStub::HandleQuery(std::string_view command) {
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} else if (command.starts_with("StartNoAckMode")) {
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no_ack = true;
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SendReply(GDB_STUB_REPLY_OK);
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} else if (command.starts_with("Rcmd,")) {
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HandleRcmd(Common::HexStringToVector(command.substr(5), false));
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} else {
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SendReply(GDB_STUB_REPLY_EMPTY);
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}
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@ -645,6 +647,155 @@ void GDBStub::HandleVCont(std::string_view command, std::vector<DebuggerAction>&
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}
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}
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constexpr std::array<std::pair<const char*, Kernel::Svc::MemoryState>, 22> MemoryStateNames{{
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{"----- Free -----", Kernel::Svc::MemoryState::Free},
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{"Io ", Kernel::Svc::MemoryState::Io},
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{"Static ", Kernel::Svc::MemoryState::Static},
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{"Code ", Kernel::Svc::MemoryState::Code},
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{"CodeData ", Kernel::Svc::MemoryState::CodeData},
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{"Normal ", Kernel::Svc::MemoryState::Normal},
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{"Shared ", Kernel::Svc::MemoryState::Shared},
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{"AliasCode ", Kernel::Svc::MemoryState::AliasCode},
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{"AliasCodeData ", Kernel::Svc::MemoryState::AliasCodeData},
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{"Ipc ", Kernel::Svc::MemoryState::Ipc},
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{"Stack ", Kernel::Svc::MemoryState::Stack},
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{"ThreadLocal ", Kernel::Svc::MemoryState::ThreadLocal},
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{"Transfered ", Kernel::Svc::MemoryState::Transfered},
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{"SharedTransfered", Kernel::Svc::MemoryState::SharedTransfered},
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{"SharedCode ", Kernel::Svc::MemoryState::SharedCode},
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{"Inaccessible ", Kernel::Svc::MemoryState::Inaccessible},
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{"NonSecureIpc ", Kernel::Svc::MemoryState::NonSecureIpc},
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{"NonDeviceIpc ", Kernel::Svc::MemoryState::NonDeviceIpc},
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{"Kernel ", Kernel::Svc::MemoryState::Kernel},
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{"GeneratedCode ", Kernel::Svc::MemoryState::GeneratedCode},
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{"CodeOut ", Kernel::Svc::MemoryState::CodeOut},
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{"Coverage ", Kernel::Svc::MemoryState::Coverage},
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}};
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static constexpr const char* GetMemoryStateName(Kernel::Svc::MemoryState state) {
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for (size_t i = 0; i < MemoryStateNames.size(); i++) {
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if (std::get<1>(MemoryStateNames[i]) == state) {
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return std::get<0>(MemoryStateNames[i]);
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}
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}
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return "Unknown ";
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}
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static constexpr const char* GetMemoryPermissionString(const Kernel::Svc::MemoryInfo& info) {
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if (info.state == Kernel::Svc::MemoryState::Free) {
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return " ";
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}
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switch (info.permission) {
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case Kernel::Svc::MemoryPermission::ReadExecute:
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return "r-x";
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case Kernel::Svc::MemoryPermission::Read:
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return "r--";
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case Kernel::Svc::MemoryPermission::ReadWrite:
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return "rw-";
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default:
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return "---";
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}
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}
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static VAddr GetModuleEnd(Kernel::KPageTable& page_table, VAddr base) {
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Kernel::Svc::MemoryInfo mem_info;
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VAddr cur_addr{base};
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// Expect: r-x Code (.text)
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mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
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cur_addr = mem_info.base_address + mem_info.size;
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if (mem_info.state != Kernel::Svc::MemoryState::Code ||
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mem_info.permission != Kernel::Svc::MemoryPermission::ReadExecute) {
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return cur_addr - 1;
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}
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// Expect: r-- Code (.rodata)
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mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
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cur_addr = mem_info.base_address + mem_info.size;
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if (mem_info.state != Kernel::Svc::MemoryState::Code ||
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mem_info.permission != Kernel::Svc::MemoryPermission::Read) {
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return cur_addr - 1;
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}
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// Expect: rw- CodeData (.data)
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mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
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cur_addr = mem_info.base_address + mem_info.size;
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return cur_addr - 1;
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}
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void GDBStub::HandleRcmd(const std::vector<u8>& command) {
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std::string_view command_str{reinterpret_cast<const char*>(&command[0]), command.size()};
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std::string reply;
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auto* process = system.CurrentProcess();
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auto& page_table = process->PageTable();
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if (command_str == "get info") {
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Loader::AppLoader::Modules modules;
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system.GetAppLoader().ReadNSOModules(modules);
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reply = fmt::format("Process: {:#x} ({})\n"
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"Program Id: {:#018x}\n",
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process->GetProcessID(), process->GetName(), process->GetProgramID());
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reply +=
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fmt::format("Layout:\n"
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" Alias: {:#012x} - {:#012x}\n"
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" Heap: {:#012x} - {:#012x}\n"
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" Aslr: {:#012x} - {:#012x}\n"
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" Stack: {:#012x} - {:#012x}\n"
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"Modules:\n",
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page_table.GetAliasRegionStart(), page_table.GetAliasRegionEnd(),
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page_table.GetHeapRegionStart(), page_table.GetHeapRegionEnd(),
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page_table.GetAliasCodeRegionStart(), page_table.GetAliasCodeRegionEnd(),
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page_table.GetStackRegionStart(), page_table.GetStackRegionEnd());
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for (const auto& [vaddr, name] : modules) {
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reply += fmt::format(" {:#012x} - {:#012x} {}\n", vaddr,
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GetModuleEnd(page_table, vaddr), name);
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}
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} else if (command_str == "get mappings") {
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reply = "Mappings:\n";
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VAddr cur_addr = 0;
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while (true) {
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using MemoryAttribute = Kernel::Svc::MemoryAttribute;
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auto mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
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if (mem_info.state != Kernel::Svc::MemoryState::Inaccessible ||
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mem_info.base_address + mem_info.size - 1 != std::numeric_limits<u64>::max()) {
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const char* state = GetMemoryStateName(mem_info.state);
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const char* perm = GetMemoryPermissionString(mem_info);
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const char l = True(mem_info.attribute & MemoryAttribute::Locked) ? 'L' : '-';
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const char i = True(mem_info.attribute & MemoryAttribute::IpcLocked) ? 'I' : '-';
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const char d = True(mem_info.attribute & MemoryAttribute::DeviceShared) ? 'D' : '-';
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const char u = True(mem_info.attribute & MemoryAttribute::Uncached) ? 'U' : '-';
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reply +=
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fmt::format(" {:#012x} - {:#012x} {} {} {}{}{}{} [{}, {}]\n",
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mem_info.base_address, mem_info.base_address + mem_info.size - 1,
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perm, state, l, i, d, u, mem_info.ipc_count, mem_info.device_count);
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}
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const uintptr_t next_address = mem_info.base_address + mem_info.size;
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if (next_address <= cur_addr) {
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break;
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}
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cur_addr = next_address;
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}
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} else if (command_str == "help") {
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reply = "Commands:\n get info\n get mappings\n";
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} else {
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reply = "Unknown command.\nCommands:\n get info\n get mappings\n";
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}
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std::span<const u8> reply_span{reinterpret_cast<u8*>(&reply.front()), reply.size()};
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SendReply(Common::HexToString(reply_span, false));
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}
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Kernel::KThread* GDBStub::GetThreadByID(u64 thread_id) {
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const auto& threads{system.GlobalSchedulerContext().GetThreadList()};
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for (auto* thread : threads) {
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@ -32,6 +32,7 @@ private:
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void ExecuteCommand(std::string_view packet, std::vector<DebuggerAction>& actions);
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void HandleVCont(std::string_view command, std::vector<DebuggerAction>& actions);
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void HandleQuery(std::string_view command);
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void HandleRcmd(const std::vector<u8>& command);
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void HandleBreakpointInsert(std::string_view command);
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void HandleBreakpointRemove(std::string_view command);
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std::vector<char>::const_iterator CommandEnd() const;
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@ -320,6 +320,9 @@ public:
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constexpr VAddr GetAliasCodeRegionStart() const {
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return m_alias_code_region_start;
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}
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constexpr VAddr GetAliasCodeRegionEnd() const {
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return m_alias_code_region_end;
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}
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constexpr VAddr GetAliasCodeRegionSize() const {
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return m_alias_code_region_end - m_alias_code_region_start;
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}
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