mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2025-04-15 12:50:38 +00:00
a9882cee50
This change: * properly captures execs in NativeProcessLinux. * clears out all non-main-thread thread metadata in NativeProcessLinux on exec. * adds a DidExec() method to the NativeProcessProtocol delegate. * clears out the auxv data cache when we exec (on Linux). This is a small part of the llgs for local Linux debugging work going on here: https://github.com/tfiala/lldb/tree/dev-llgs-local I'm breaking it into small patches. llvm-svn: 216670
4315 lines
153 KiB
C++
4315 lines
153 KiB
C++
//===-- GDBRemoteCommunicationServer.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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#include <errno.h>
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#include "lldb/Host/Config.h"
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#include "GDBRemoteCommunicationServer.h"
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#include "lldb/Core/StreamGDBRemote.h"
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// C Includes
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// C++ Includes
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#include <cstring>
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#include <chrono>
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#include <thread>
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// Other libraries and framework includes
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#include "llvm/ADT/Triple.h"
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#include "lldb/Interpreter/Args.h"
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#include "lldb/Core/ConnectionFileDescriptor.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/State.h"
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#include "lldb/Core/StreamString.h"
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#include "lldb/Host/Debug.h"
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#include "lldb/Host/Endian.h"
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#include "lldb/Host/File.h"
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Host/Host.h"
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#include "lldb/Host/HostInfo.h"
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#include "lldb/Host/TimeValue.h"
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#include "lldb/Target/FileAction.h"
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#include "lldb/Target/Platform.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/NativeRegisterContext.h"
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#include "Host/common/NativeProcessProtocol.h"
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#include "Host/common/NativeThreadProtocol.h"
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// Project includes
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#include "Utility/StringExtractorGDBRemote.h"
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#include "ProcessGDBRemote.h"
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#include "ProcessGDBRemoteLog.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// GDBRemote Errors
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//----------------------------------------------------------------------
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namespace
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{
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enum GDBRemoteServerError
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{
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// Set to the first unused error number in literal form below
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eErrorFirst = 29,
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eErrorNoProcess = eErrorFirst,
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eErrorResume,
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eErrorExitStatus
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};
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}
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//----------------------------------------------------------------------
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// GDBRemoteCommunicationServer constructor
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//----------------------------------------------------------------------
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GDBRemoteCommunicationServer::GDBRemoteCommunicationServer(bool is_platform) :
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GDBRemoteCommunication ("gdb-remote.server", "gdb-remote.server.rx_packet", is_platform),
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m_platform_sp (Platform::GetDefaultPlatform ()),
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m_async_thread (LLDB_INVALID_HOST_THREAD),
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m_process_launch_info (),
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m_process_launch_error (),
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m_spawned_pids (),
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m_spawned_pids_mutex (Mutex::eMutexTypeRecursive),
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m_proc_infos (),
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m_proc_infos_index (0),
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m_port_map (),
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m_port_offset(0),
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m_current_tid (LLDB_INVALID_THREAD_ID),
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m_continue_tid (LLDB_INVALID_THREAD_ID),
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m_debugged_process_mutex (Mutex::eMutexTypeRecursive),
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m_debugged_process_sp (),
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m_debugger_sp (),
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m_stdio_communication ("process.stdio"),
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m_exit_now (false),
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m_inferior_prev_state (StateType::eStateInvalid),
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m_thread_suffix_supported (false),
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m_list_threads_in_stop_reply (false),
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m_active_auxv_buffer_sp (),
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m_saved_registers_mutex (),
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m_saved_registers_map (),
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m_next_saved_registers_id (1)
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{
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assert(is_platform && "must be lldb-platform if debugger is not specified");
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}
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GDBRemoteCommunicationServer::GDBRemoteCommunicationServer(bool is_platform,
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const lldb::PlatformSP& platform_sp,
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lldb::DebuggerSP &debugger_sp) :
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GDBRemoteCommunication ("gdb-remote.server", "gdb-remote.server.rx_packet", is_platform),
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m_platform_sp (platform_sp),
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m_async_thread (LLDB_INVALID_HOST_THREAD),
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m_process_launch_info (),
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m_process_launch_error (),
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m_spawned_pids (),
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m_spawned_pids_mutex (Mutex::eMutexTypeRecursive),
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m_proc_infos (),
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m_proc_infos_index (0),
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m_port_map (),
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m_port_offset(0),
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m_current_tid (LLDB_INVALID_THREAD_ID),
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m_continue_tid (LLDB_INVALID_THREAD_ID),
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m_debugged_process_mutex (Mutex::eMutexTypeRecursive),
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m_debugged_process_sp (),
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m_debugger_sp (debugger_sp),
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m_stdio_communication ("process.stdio"),
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m_exit_now (false),
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m_inferior_prev_state (StateType::eStateInvalid),
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m_thread_suffix_supported (false),
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m_list_threads_in_stop_reply (false),
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m_active_auxv_buffer_sp (),
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m_saved_registers_mutex (),
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m_saved_registers_map (),
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m_next_saved_registers_id (1)
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{
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assert(platform_sp);
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assert((is_platform || debugger_sp) && "must specify non-NULL debugger_sp when lldb-gdbserver");
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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GDBRemoteCommunicationServer::~GDBRemoteCommunicationServer()
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{
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}
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GDBRemoteCommunication::PacketResult
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GDBRemoteCommunicationServer::GetPacketAndSendResponse (uint32_t timeout_usec,
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Error &error,
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bool &interrupt,
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bool &quit)
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{
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StringExtractorGDBRemote packet;
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PacketResult packet_result = WaitForPacketWithTimeoutMicroSecondsNoLock (packet, timeout_usec);
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if (packet_result == PacketResult::Success)
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{
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const StringExtractorGDBRemote::ServerPacketType packet_type = packet.GetServerPacketType ();
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switch (packet_type)
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{
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case StringExtractorGDBRemote::eServerPacketType_nack:
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case StringExtractorGDBRemote::eServerPacketType_ack:
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break;
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case StringExtractorGDBRemote::eServerPacketType_invalid:
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error.SetErrorString("invalid packet");
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quit = true;
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break;
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default:
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case StringExtractorGDBRemote::eServerPacketType_unimplemented:
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packet_result = SendUnimplementedResponse (packet.GetStringRef().c_str());
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break;
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case StringExtractorGDBRemote::eServerPacketType_A:
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packet_result = Handle_A (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qfProcessInfo:
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packet_result = Handle_qfProcessInfo (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qsProcessInfo:
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packet_result = Handle_qsProcessInfo (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qC:
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packet_result = Handle_qC (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qHostInfo:
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packet_result = Handle_qHostInfo (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qLaunchGDBServer:
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packet_result = Handle_qLaunchGDBServer (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qKillSpawnedProcess:
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packet_result = Handle_qKillSpawnedProcess (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_k:
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packet_result = Handle_k (packet);
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quit = true;
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break;
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case StringExtractorGDBRemote::eServerPacketType_qLaunchSuccess:
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packet_result = Handle_qLaunchSuccess (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qGroupName:
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packet_result = Handle_qGroupName (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qProcessInfo:
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packet_result = Handle_qProcessInfo (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qProcessInfoPID:
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packet_result = Handle_qProcessInfoPID (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qSpeedTest:
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packet_result = Handle_qSpeedTest (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qUserName:
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packet_result = Handle_qUserName (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qGetWorkingDir:
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packet_result = Handle_qGetWorkingDir(packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QEnvironment:
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packet_result = Handle_QEnvironment (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QLaunchArch:
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packet_result = Handle_QLaunchArch (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QSetDisableASLR:
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packet_result = Handle_QSetDisableASLR (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QSetDetachOnError:
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packet_result = Handle_QSetDetachOnError (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QSetSTDIN:
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packet_result = Handle_QSetSTDIN (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QSetSTDOUT:
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packet_result = Handle_QSetSTDOUT (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QSetSTDERR:
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packet_result = Handle_QSetSTDERR (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QSetWorkingDir:
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packet_result = Handle_QSetWorkingDir (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QStartNoAckMode:
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packet_result = Handle_QStartNoAckMode (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qPlatform_mkdir:
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packet_result = Handle_qPlatform_mkdir (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qPlatform_chmod:
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packet_result = Handle_qPlatform_chmod (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qPlatform_shell:
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packet_result = Handle_qPlatform_shell (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_C:
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packet_result = Handle_C (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_c:
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packet_result = Handle_c (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vCont:
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packet_result = Handle_vCont (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vCont_actions:
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packet_result = Handle_vCont_actions (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_stop_reason: // ?
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packet_result = Handle_stop_reason (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_open:
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packet_result = Handle_vFile_Open (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_close:
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packet_result = Handle_vFile_Close (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_pread:
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packet_result = Handle_vFile_pRead (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_pwrite:
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packet_result = Handle_vFile_pWrite (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_size:
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packet_result = Handle_vFile_Size (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_mode:
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packet_result = Handle_vFile_Mode (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_exists:
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packet_result = Handle_vFile_Exists (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_stat:
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packet_result = Handle_vFile_Stat (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_md5:
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packet_result = Handle_vFile_MD5 (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_symlink:
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packet_result = Handle_vFile_symlink (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vFile_unlink:
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packet_result = Handle_vFile_unlink (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qRegisterInfo:
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packet_result = Handle_qRegisterInfo (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qfThreadInfo:
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packet_result = Handle_qfThreadInfo (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qsThreadInfo:
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packet_result = Handle_qsThreadInfo (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_p:
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packet_result = Handle_p (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_P:
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packet_result = Handle_P (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_H:
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packet_result = Handle_H (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_m:
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packet_result = Handle_m (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_M:
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packet_result = Handle_M (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qMemoryRegionInfoSupported:
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packet_result = Handle_qMemoryRegionInfoSupported (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qMemoryRegionInfo:
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packet_result = Handle_qMemoryRegionInfo (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_interrupt:
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if (IsGdbServer ())
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packet_result = Handle_interrupt (packet);
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else
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{
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error.SetErrorString("interrupt received");
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interrupt = true;
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}
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break;
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case StringExtractorGDBRemote::eServerPacketType_Z:
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packet_result = Handle_Z (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_z:
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packet_result = Handle_z (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_s:
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packet_result = Handle_s (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qSupported:
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packet_result = Handle_qSupported (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QThreadSuffixSupported:
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packet_result = Handle_QThreadSuffixSupported (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QListThreadsInStopReply:
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packet_result = Handle_QListThreadsInStopReply (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_qXfer_auxv_read:
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packet_result = Handle_qXfer_auxv_read (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QSaveRegisterState:
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packet_result = Handle_QSaveRegisterState (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_QRestoreRegisterState:
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packet_result = Handle_QRestoreRegisterState (packet);
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break;
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case StringExtractorGDBRemote::eServerPacketType_vAttach:
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packet_result = Handle_vAttach (packet);
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break;
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}
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}
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else
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{
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if (!IsConnected())
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{
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error.SetErrorString("lost connection");
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quit = true;
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}
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else
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{
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error.SetErrorString("timeout");
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}
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}
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// Check if anything occurred that would force us to want to exit.
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if (m_exit_now)
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quit = true;
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return packet_result;
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}
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lldb_private::Error
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GDBRemoteCommunicationServer::SetLaunchArguments (const char *const args[], int argc)
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{
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if ((argc < 1) || !args || !args[0] || !args[0][0])
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return lldb_private::Error ("%s: no process command line specified to launch", __FUNCTION__);
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m_process_launch_info.SetArguments (const_cast<const char**> (args), true);
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return lldb_private::Error ();
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}
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lldb_private::Error
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GDBRemoteCommunicationServer::SetLaunchFlags (unsigned int launch_flags)
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|
{
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m_process_launch_info.GetFlags ().Set (launch_flags);
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return lldb_private::Error ();
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}
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|
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lldb_private::Error
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GDBRemoteCommunicationServer::LaunchProcess ()
|
|
{
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// FIXME This looks an awful lot like we could override this in
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// derived classes, one for lldb-platform, the other for lldb-gdbserver.
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if (IsGdbServer ())
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return LaunchDebugServerProcess ();
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else
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return LaunchPlatformProcess ();
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}
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|
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lldb_private::Error
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GDBRemoteCommunicationServer::LaunchDebugServerProcess ()
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{
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Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
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|
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if (!m_process_launch_info.GetArguments ().GetArgumentCount ())
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return lldb_private::Error ("%s: no process command line specified to launch", __FUNCTION__);
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|
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lldb_private::Error error;
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|
{
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Mutex::Locker locker (m_debugged_process_mutex);
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assert (!m_debugged_process_sp && "lldb-gdbserver creating debugged process but one already exists");
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error = m_platform_sp->LaunchNativeProcess (
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m_process_launch_info,
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*this,
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m_debugged_process_sp);
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|
}
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|
|
if (!error.Success ())
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{
|
|
fprintf (stderr, "%s: failed to launch executable %s", __FUNCTION__, m_process_launch_info.GetArguments ().GetArgumentAtIndex (0));
|
|
return error;
|
|
}
|
|
|
|
// Setup stdout/stderr mapping from inferior.
|
|
auto terminal_fd = m_debugged_process_sp->GetTerminalFileDescriptor ();
|
|
if (terminal_fd >= 0)
|
|
{
|
|
if (log)
|
|
log->Printf ("ProcessGDBRemoteCommunicationServer::%s setting inferior STDIO fd to %d", __FUNCTION__, terminal_fd);
|
|
error = SetSTDIOFileDescriptor (terminal_fd);
|
|
if (error.Fail ())
|
|
return error;
|
|
}
|
|
else
|
|
{
|
|
if (log)
|
|
log->Printf ("ProcessGDBRemoteCommunicationServer::%s ignoring inferior STDIO since terminal fd reported as %d", __FUNCTION__, terminal_fd);
|
|
}
|
|
|
|
printf ("Launched '%s' as process %" PRIu64 "...\n", m_process_launch_info.GetArguments ().GetArgumentAtIndex (0), m_process_launch_info.GetProcessID ());
|
|
|
|
// Add to list of spawned processes.
|
|
lldb::pid_t pid;
|
|
if ((pid = m_process_launch_info.GetProcessID ()) != LLDB_INVALID_PROCESS_ID)
|
|
{
|
|
// add to spawned pids
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
// On an lldb-gdbserver, we would expect there to be only one.
|
|
assert (m_spawned_pids.empty () && "lldb-gdbserver adding tracked process but one already existed");
|
|
m_spawned_pids.insert (pid);
|
|
}
|
|
}
|
|
|
|
if (error.Success ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s beginning check to wait for launched application to hit first stop", __FUNCTION__);
|
|
|
|
int iteration = 0;
|
|
// Wait for the process to hit its first stop state.
|
|
while (!StateIsStoppedState (m_debugged_process_sp->GetState (), false))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s waiting for launched process to hit first stop (%d)...", __FUNCTION__, iteration++);
|
|
|
|
// FIXME use a finer granularity.
|
|
std::this_thread::sleep_for(std::chrono::seconds(1));
|
|
}
|
|
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s launched application has hit first stop", __FUNCTION__);
|
|
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
lldb_private::Error
|
|
GDBRemoteCommunicationServer::LaunchPlatformProcess ()
|
|
{
|
|
if (!m_process_launch_info.GetArguments ().GetArgumentCount ())
|
|
return lldb_private::Error ("%s: no process command line specified to launch", __FUNCTION__);
|
|
|
|
// specify the process monitor if not already set. This should
|
|
// generally be what happens since we need to reap started
|
|
// processes.
|
|
if (!m_process_launch_info.GetMonitorProcessCallback ())
|
|
m_process_launch_info.SetMonitorProcessCallback(ReapDebuggedProcess, this, false);
|
|
|
|
lldb_private::Error error = m_platform_sp->LaunchProcess (m_process_launch_info);
|
|
if (!error.Success ())
|
|
{
|
|
fprintf (stderr, "%s: failed to launch executable %s", __FUNCTION__, m_process_launch_info.GetArguments ().GetArgumentAtIndex (0));
|
|
return error;
|
|
}
|
|
|
|
printf ("Launched '%s' as process %" PRIu64 "...\n", m_process_launch_info.GetArguments ().GetArgumentAtIndex (0), m_process_launch_info.GetProcessID());
|
|
|
|
// add to list of spawned processes. On an lldb-gdbserver, we
|
|
// would expect there to be only one.
|
|
lldb::pid_t pid;
|
|
if ( (pid = m_process_launch_info.GetProcessID()) != LLDB_INVALID_PROCESS_ID )
|
|
{
|
|
// add to spawned pids
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
m_spawned_pids.insert(pid);
|
|
}
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
lldb_private::Error
|
|
GDBRemoteCommunicationServer::AttachToProcess (lldb::pid_t pid)
|
|
{
|
|
Error error;
|
|
|
|
if (!IsGdbServer ())
|
|
{
|
|
error.SetErrorString("cannot AttachToProcess () unless process is lldb-gdbserver");
|
|
return error;
|
|
}
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_PROCESS));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64, __FUNCTION__, pid);
|
|
|
|
// Scope for mutex locker.
|
|
{
|
|
// Before we try to attach, make sure we aren't already monitoring something else.
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
if (!m_spawned_pids.empty ())
|
|
{
|
|
error.SetErrorStringWithFormat ("cannot attach to a process %" PRIu64 " when another process with pid %" PRIu64 " is being debugged.", pid, *m_spawned_pids.begin());
|
|
return error;
|
|
}
|
|
|
|
// Try to attach.
|
|
error = m_platform_sp->AttachNativeProcess (pid, *this, m_debugged_process_sp);
|
|
if (!error.Success ())
|
|
{
|
|
fprintf (stderr, "%s: failed to attach to process %" PRIu64 ": %s", __FUNCTION__, pid, error.AsCString ());
|
|
return error;
|
|
}
|
|
|
|
// Setup stdout/stderr mapping from inferior.
|
|
auto terminal_fd = m_debugged_process_sp->GetTerminalFileDescriptor ();
|
|
if (terminal_fd >= 0)
|
|
{
|
|
if (log)
|
|
log->Printf ("ProcessGDBRemoteCommunicationServer::%s setting inferior STDIO fd to %d", __FUNCTION__, terminal_fd);
|
|
error = SetSTDIOFileDescriptor (terminal_fd);
|
|
if (error.Fail ())
|
|
return error;
|
|
}
|
|
else
|
|
{
|
|
if (log)
|
|
log->Printf ("ProcessGDBRemoteCommunicationServer::%s ignoring inferior STDIO since terminal fd reported as %d", __FUNCTION__, terminal_fd);
|
|
}
|
|
|
|
printf ("Attached to process %" PRIu64 "...\n", pid);
|
|
|
|
// Add to list of spawned processes.
|
|
assert (m_spawned_pids.empty () && "lldb-gdbserver adding tracked process but one already existed");
|
|
m_spawned_pids.insert (pid);
|
|
|
|
return error;
|
|
}
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::InitializeDelegate (lldb_private::NativeProcessProtocol *process)
|
|
{
|
|
assert (process && "process cannot be NULL");
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
if (log)
|
|
{
|
|
log->Printf ("GDBRemoteCommunicationServer::%s called with NativeProcessProtocol pid %" PRIu64 ", current state: %s",
|
|
__FUNCTION__,
|
|
process->GetID (),
|
|
StateAsCString (process->GetState ()));
|
|
}
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::SendWResponse (lldb_private::NativeProcessProtocol *process)
|
|
{
|
|
assert (process && "process cannot be NULL");
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
|
|
// send W notification
|
|
ExitType exit_type = ExitType::eExitTypeInvalid;
|
|
int return_code = 0;
|
|
std::string exit_description;
|
|
|
|
const bool got_exit_info = process->GetExitStatus (&exit_type, &return_code, exit_description);
|
|
if (!got_exit_info)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 ", failed to retrieve process exit status", __FUNCTION__, process->GetID ());
|
|
|
|
StreamGDBRemote response;
|
|
response.PutChar ('E');
|
|
response.PutHex8 (GDBRemoteServerError::eErrorExitStatus);
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
else
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 ", returning exit type %d, return code %d [%s]", __FUNCTION__, process->GetID (), exit_type, return_code, exit_description.c_str ());
|
|
|
|
StreamGDBRemote response;
|
|
|
|
char return_type_code;
|
|
switch (exit_type)
|
|
{
|
|
case ExitType::eExitTypeExit: return_type_code = 'W'; break;
|
|
case ExitType::eExitTypeSignal: return_type_code = 'X'; break;
|
|
case ExitType::eExitTypeStop: return_type_code = 'S'; break;
|
|
|
|
case ExitType::eExitTypeInvalid:
|
|
default: return_type_code = 'E'; break;
|
|
}
|
|
response.PutChar (return_type_code);
|
|
|
|
// POSIX exit status limited to unsigned 8 bits.
|
|
response.PutHex8 (return_code);
|
|
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
}
|
|
|
|
static void
|
|
AppendHexValue (StreamString &response, const uint8_t* buf, uint32_t buf_size, bool swap)
|
|
{
|
|
int64_t i;
|
|
if (swap)
|
|
{
|
|
for (i = buf_size-1; i >= 0; i--)
|
|
response.PutHex8 (buf[i]);
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; i < buf_size; i++)
|
|
response.PutHex8 (buf[i]);
|
|
}
|
|
}
|
|
|
|
static void
|
|
WriteRegisterValueInHexFixedWidth (StreamString &response,
|
|
NativeRegisterContextSP ®_ctx_sp,
|
|
const RegisterInfo ®_info,
|
|
const RegisterValue *reg_value_p)
|
|
{
|
|
RegisterValue reg_value;
|
|
if (!reg_value_p)
|
|
{
|
|
Error error = reg_ctx_sp->ReadRegister (®_info, reg_value);
|
|
if (error.Success ())
|
|
reg_value_p = ®_value;
|
|
// else log.
|
|
}
|
|
|
|
if (reg_value_p)
|
|
{
|
|
AppendHexValue (response, (const uint8_t*) reg_value_p->GetBytes (), reg_value_p->GetByteSize (), false);
|
|
}
|
|
else
|
|
{
|
|
// Zero-out any unreadable values.
|
|
if (reg_info.byte_size > 0)
|
|
{
|
|
std::basic_string<uint8_t> zeros(reg_info.byte_size, '\0');
|
|
AppendHexValue (response, zeros.data(), zeros.size(), false);
|
|
}
|
|
}
|
|
}
|
|
|
|
// WriteGdbRegnumWithFixedWidthHexRegisterValue (response, reg_ctx_sp, *reg_info_p, reg_value);
|
|
|
|
|
|
static void
|
|
WriteGdbRegnumWithFixedWidthHexRegisterValue (StreamString &response,
|
|
NativeRegisterContextSP ®_ctx_sp,
|
|
const RegisterInfo ®_info,
|
|
const RegisterValue ®_value)
|
|
{
|
|
// Output the register number as 'NN:VVVVVVVV;' where NN is a 2 bytes HEX
|
|
// gdb register number, and VVVVVVVV is the correct number of hex bytes
|
|
// as ASCII for the register value.
|
|
if (reg_info.kinds[eRegisterKindGDB] == LLDB_INVALID_REGNUM)
|
|
return;
|
|
|
|
response.Printf ("%.02x:", reg_info.kinds[eRegisterKindGDB]);
|
|
WriteRegisterValueInHexFixedWidth (response, reg_ctx_sp, reg_info, ®_value);
|
|
response.PutChar (';');
|
|
}
|
|
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::SendStopReplyPacketForThread (lldb::tid_t tid)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
|
|
|
|
// Ensure we're llgs.
|
|
if (!IsGdbServer ())
|
|
{
|
|
// Only supported on llgs
|
|
return SendUnimplementedResponse ("");
|
|
}
|
|
|
|
// Ensure we have a debugged process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
return SendErrorResponse (50);
|
|
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s preparing packet for pid %" PRIu64 " tid %" PRIu64,
|
|
__FUNCTION__, m_debugged_process_sp->GetID (), tid);
|
|
|
|
// Ensure we can get info on the given thread.
|
|
NativeThreadProtocolSP thread_sp (m_debugged_process_sp->GetThreadByID (tid));
|
|
if (!thread_sp)
|
|
return SendErrorResponse (51);
|
|
|
|
// Grab the reason this thread stopped.
|
|
struct ThreadStopInfo tid_stop_info;
|
|
if (!thread_sp->GetStopReason (tid_stop_info))
|
|
return SendErrorResponse (52);
|
|
|
|
const bool did_exec = tid_stop_info.reason == eStopReasonExec;
|
|
// FIXME implement register handling for exec'd inferiors.
|
|
// if (did_exec)
|
|
// {
|
|
// const bool force = true;
|
|
// InitializeRegisters(force);
|
|
// }
|
|
|
|
StreamString response;
|
|
// Output the T packet with the thread
|
|
response.PutChar ('T');
|
|
int signum = tid_stop_info.details.signal.signo;
|
|
if (log)
|
|
{
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " tid %" PRIu64 " got signal signo = %d, reason = %d, exc_type = %" PRIu64,
|
|
__FUNCTION__,
|
|
m_debugged_process_sp->GetID (),
|
|
tid,
|
|
signum,
|
|
tid_stop_info.reason,
|
|
tid_stop_info.details.exception.type);
|
|
}
|
|
|
|
switch (tid_stop_info.reason)
|
|
{
|
|
case eStopReasonSignal:
|
|
case eStopReasonException:
|
|
signum = thread_sp->TranslateStopInfoToGdbSignal (tid_stop_info);
|
|
break;
|
|
default:
|
|
signum = 0;
|
|
if (log)
|
|
{
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " tid %" PRIu64 " has stop reason %d, using signo = 0 in stop reply response",
|
|
__FUNCTION__,
|
|
m_debugged_process_sp->GetID (),
|
|
tid,
|
|
tid_stop_info.reason);
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Print the signal number.
|
|
response.PutHex8 (signum & 0xff);
|
|
|
|
// Include the tid.
|
|
response.Printf ("thread:%" PRIx64 ";", tid);
|
|
|
|
// Include the thread name if there is one.
|
|
const char *thread_name = thread_sp->GetName ();
|
|
if (thread_name && thread_name[0])
|
|
{
|
|
size_t thread_name_len = strlen(thread_name);
|
|
|
|
if (::strcspn (thread_name, "$#+-;:") == thread_name_len)
|
|
{
|
|
response.PutCString ("name:");
|
|
response.PutCString (thread_name);
|
|
}
|
|
else
|
|
{
|
|
// The thread name contains special chars, send as hex bytes.
|
|
response.PutCString ("hexname:");
|
|
response.PutCStringAsRawHex8 (thread_name);
|
|
}
|
|
response.PutChar (';');
|
|
}
|
|
|
|
// FIXME look for analog
|
|
// thread_identifier_info_data_t thread_ident_info;
|
|
// if (DNBThreadGetIdentifierInfo (pid, tid, &thread_ident_info))
|
|
// {
|
|
// if (thread_ident_info.dispatch_qaddr != 0)
|
|
// ostrm << std::hex << "qaddr:" << thread_ident_info.dispatch_qaddr << ';';
|
|
// }
|
|
|
|
// If a 'QListThreadsInStopReply' was sent to enable this feature, we
|
|
// will send all thread IDs back in the "threads" key whose value is
|
|
// a list of hex thread IDs separated by commas:
|
|
// "threads:10a,10b,10c;"
|
|
// This will save the debugger from having to send a pair of qfThreadInfo
|
|
// and qsThreadInfo packets, but it also might take a lot of room in the
|
|
// stop reply packet, so it must be enabled only on systems where there
|
|
// are no limits on packet lengths.
|
|
if (m_list_threads_in_stop_reply)
|
|
{
|
|
response.PutCString ("threads:");
|
|
|
|
uint32_t thread_index = 0;
|
|
NativeThreadProtocolSP listed_thread_sp;
|
|
for (listed_thread_sp = m_debugged_process_sp->GetThreadAtIndex (thread_index); listed_thread_sp; ++thread_index, listed_thread_sp = m_debugged_process_sp->GetThreadAtIndex (thread_index))
|
|
{
|
|
if (thread_index > 0)
|
|
response.PutChar (',');
|
|
response.Printf ("%" PRIx64, listed_thread_sp->GetID ());
|
|
}
|
|
response.PutChar (';');
|
|
}
|
|
|
|
//
|
|
// Expedite registers.
|
|
//
|
|
|
|
// Grab the register context.
|
|
NativeRegisterContextSP reg_ctx_sp = thread_sp->GetRegisterContext ();
|
|
if (reg_ctx_sp)
|
|
{
|
|
// Expedite all registers in the first register set (i.e. should be GPRs) that are not contained in other registers.
|
|
const RegisterSet *reg_set_p;
|
|
if (reg_ctx_sp->GetRegisterSetCount () > 0 && ((reg_set_p = reg_ctx_sp->GetRegisterSet (0)) != nullptr))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s expediting registers from set '%s' (registers set count: %zu)", __FUNCTION__, reg_set_p->name ? reg_set_p->name : "<unnamed-set>", reg_set_p->num_registers);
|
|
|
|
for (const uint32_t *reg_num_p = reg_set_p->registers; *reg_num_p != LLDB_INVALID_REGNUM; ++reg_num_p)
|
|
{
|
|
const RegisterInfo *const reg_info_p = reg_ctx_sp->GetRegisterInfoAtIndex (*reg_num_p);
|
|
if (reg_info_p == nullptr)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed to get register info for register set '%s', register index %" PRIu32, __FUNCTION__, reg_set_p->name ? reg_set_p->name : "<unnamed-set>", *reg_num_p);
|
|
}
|
|
else if (reg_info_p->value_regs == nullptr)
|
|
{
|
|
// Only expediate registers that are not contained in other registers.
|
|
RegisterValue reg_value;
|
|
Error error = reg_ctx_sp->ReadRegister (reg_info_p, reg_value);
|
|
if (error.Success ())
|
|
WriteGdbRegnumWithFixedWidthHexRegisterValue (response, reg_ctx_sp, *reg_info_p, reg_value);
|
|
else
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed to read register '%s' index %" PRIu32 ": %s", __FUNCTION__, reg_info_p->name ? reg_info_p->name : "<unnamed-register>", *reg_num_p, error.AsCString ());
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (did_exec)
|
|
{
|
|
response.PutCString ("reason:exec;");
|
|
}
|
|
else if ((tid_stop_info.reason == eStopReasonException) && tid_stop_info.details.exception.type)
|
|
{
|
|
response.PutCString ("metype:");
|
|
response.PutHex64 (tid_stop_info.details.exception.type);
|
|
response.PutCString (";mecount:");
|
|
response.PutHex32 (tid_stop_info.details.exception.data_count);
|
|
response.PutChar (';');
|
|
|
|
for (uint32_t i = 0; i < tid_stop_info.details.exception.data_count; ++i)
|
|
{
|
|
response.PutCString ("medata:");
|
|
response.PutHex64 (tid_stop_info.details.exception.data[i]);
|
|
response.PutChar (';');
|
|
}
|
|
}
|
|
|
|
return SendPacketNoLock (response.GetData(), response.GetSize());
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::HandleInferiorState_Exited (lldb_private::NativeProcessProtocol *process)
|
|
{
|
|
assert (process && "process cannot be NULL");
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s called", __FUNCTION__);
|
|
|
|
// Send the exit result, and don't flush output.
|
|
// Note: flushing output here would join the inferior stdio reflection thread, which
|
|
// would gunk up the waitpid monitor thread that is calling this.
|
|
PacketResult result = SendStopReasonForState (StateType::eStateExited, false);
|
|
if (result != PacketResult::Success)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed to send stop notification for PID %" PRIu64 ", state: eStateExited", __FUNCTION__, process->GetID ());
|
|
}
|
|
|
|
// Remove the process from the list of spawned pids.
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
if (m_spawned_pids.erase (process->GetID ()) < 1)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed to remove PID %" PRIu64 " from the spawned pids list", __FUNCTION__, process->GetID ());
|
|
|
|
}
|
|
}
|
|
|
|
// FIXME can't do this yet - since process state propagation is currently
|
|
// synchronous, it is running off the NativeProcessProtocol's innards and
|
|
// will tear down the NPP while it still has code to execute.
|
|
#if 0
|
|
// Clear the NativeProcessProtocol pointer.
|
|
{
|
|
Mutex::Locker locker (m_debugged_process_mutex);
|
|
m_debugged_process_sp.reset();
|
|
}
|
|
#endif
|
|
|
|
// Close the pipe to the inferior terminal i/o if we launched it
|
|
// and set one up. Otherwise, 'k' and its flush of stdio could
|
|
// end up waiting on a thread join that will never end. Consider
|
|
// adding a timeout to the connection thread join call so we
|
|
// can avoid that scenario altogether.
|
|
MaybeCloseInferiorTerminalConnection ();
|
|
|
|
// We are ready to exit the debug monitor.
|
|
m_exit_now = true;
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::HandleInferiorState_Stopped (lldb_private::NativeProcessProtocol *process)
|
|
{
|
|
assert (process && "process cannot be NULL");
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s called", __FUNCTION__);
|
|
|
|
// Send the stop reason unless this is the stop after the
|
|
// launch or attach.
|
|
switch (m_inferior_prev_state)
|
|
{
|
|
case eStateLaunching:
|
|
case eStateAttaching:
|
|
// Don't send anything per debugserver behavior.
|
|
break;
|
|
default:
|
|
// In all other cases, send the stop reason.
|
|
PacketResult result = SendStopReasonForState (StateType::eStateStopped, false);
|
|
if (result != PacketResult::Success)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed to send stop notification for PID %" PRIu64 ", state: eStateExited", __FUNCTION__, process->GetID ());
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::ProcessStateChanged (lldb_private::NativeProcessProtocol *process, lldb::StateType state)
|
|
{
|
|
assert (process && "process cannot be NULL");
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
if (log)
|
|
{
|
|
log->Printf ("GDBRemoteCommunicationServer::%s called with NativeProcessProtocol pid %" PRIu64 ", state: %s",
|
|
__FUNCTION__,
|
|
process->GetID (),
|
|
StateAsCString (state));
|
|
}
|
|
|
|
switch (state)
|
|
{
|
|
case StateType::eStateExited:
|
|
HandleInferiorState_Exited (process);
|
|
break;
|
|
|
|
case StateType::eStateStopped:
|
|
HandleInferiorState_Stopped (process);
|
|
break;
|
|
|
|
default:
|
|
if (log)
|
|
{
|
|
log->Printf ("GDBRemoteCommunicationServer::%s didn't handle state change for pid %" PRIu64 ", new state: %s",
|
|
__FUNCTION__,
|
|
process->GetID (),
|
|
StateAsCString (state));
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Remember the previous state reported to us.
|
|
m_inferior_prev_state = state;
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::DidExec (NativeProcessProtocol *process)
|
|
{
|
|
ClearProcessSpecificData ();
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::SendONotification (const char *buffer, uint32_t len)
|
|
{
|
|
if ((buffer == nullptr) || (len == 0))
|
|
{
|
|
// Nothing to send.
|
|
return PacketResult::Success;
|
|
}
|
|
|
|
StreamString response;
|
|
response.PutChar ('O');
|
|
response.PutBytesAsRawHex8 (buffer, len);
|
|
|
|
return SendPacketNoLock (response.GetData (), response.GetSize ());
|
|
}
|
|
|
|
lldb_private::Error
|
|
GDBRemoteCommunicationServer::SetSTDIOFileDescriptor (int fd)
|
|
{
|
|
Error error;
|
|
|
|
// Set up the Read Thread for reading/handling process I/O
|
|
std::unique_ptr<ConnectionFileDescriptor> conn_up (new ConnectionFileDescriptor (fd, true));
|
|
if (!conn_up)
|
|
{
|
|
error.SetErrorString ("failed to create ConnectionFileDescriptor");
|
|
return error;
|
|
}
|
|
|
|
m_stdio_communication.SetConnection (conn_up.release());
|
|
if (!m_stdio_communication.IsConnected ())
|
|
{
|
|
error.SetErrorString ("failed to set connection for inferior I/O communication");
|
|
return error;
|
|
}
|
|
|
|
m_stdio_communication.SetReadThreadBytesReceivedCallback (STDIOReadThreadBytesReceived, this);
|
|
m_stdio_communication.StartReadThread();
|
|
|
|
return error;
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len)
|
|
{
|
|
GDBRemoteCommunicationServer *server = reinterpret_cast<GDBRemoteCommunicationServer*> (baton);
|
|
static_cast<void> (server->SendONotification (static_cast<const char *>(src), src_len));
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::SendUnimplementedResponse (const char *)
|
|
{
|
|
// TODO: Log the packet we aren't handling...
|
|
return SendPacketNoLock ("", 0);
|
|
}
|
|
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::SendErrorResponse (uint8_t err)
|
|
{
|
|
char packet[16];
|
|
int packet_len = ::snprintf (packet, sizeof(packet), "E%2.2x", err);
|
|
assert (packet_len < (int)sizeof(packet));
|
|
return SendPacketNoLock (packet, packet_len);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::SendIllFormedResponse (const StringExtractorGDBRemote &failed_packet, const char *message)
|
|
{
|
|
Log *log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet(GDBR_LOG_PACKETS));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s: ILLFORMED: '%s' (%s)", __FUNCTION__, failed_packet.GetStringRef ().c_str (), message ? message : "");
|
|
return SendErrorResponse (0x03);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::SendOKResponse ()
|
|
{
|
|
return SendPacketNoLock ("OK", 2);
|
|
}
|
|
|
|
bool
|
|
GDBRemoteCommunicationServer::HandshakeWithClient(Error *error_ptr)
|
|
{
|
|
return GetAck() == PacketResult::Success;
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qHostInfo (StringExtractorGDBRemote &packet)
|
|
{
|
|
StreamString response;
|
|
|
|
// $cputype:16777223;cpusubtype:3;ostype:Darwin;vendor:apple;endian:little;ptrsize:8;#00
|
|
|
|
ArchSpec host_arch(HostInfo::GetArchitecture());
|
|
const llvm::Triple &host_triple = host_arch.GetTriple();
|
|
response.PutCString("triple:");
|
|
response.PutCString(host_triple.getTriple().c_str());
|
|
response.Printf (";ptrsize:%u;",host_arch.GetAddressByteSize());
|
|
|
|
const char* distribution_id = host_arch.GetDistributionId ().AsCString ();
|
|
if (distribution_id)
|
|
{
|
|
response.PutCString("distribution_id:");
|
|
response.PutCStringAsRawHex8(distribution_id);
|
|
response.PutCString(";");
|
|
}
|
|
|
|
// Only send out MachO info when lldb-platform/llgs is running on a MachO host.
|
|
#if defined(__APPLE__)
|
|
uint32_t cpu = host_arch.GetMachOCPUType();
|
|
uint32_t sub = host_arch.GetMachOCPUSubType();
|
|
if (cpu != LLDB_INVALID_CPUTYPE)
|
|
response.Printf ("cputype:%u;", cpu);
|
|
if (sub != LLDB_INVALID_CPUTYPE)
|
|
response.Printf ("cpusubtype:%u;", sub);
|
|
|
|
if (cpu == ArchSpec::kCore_arm_any)
|
|
response.Printf("watchpoint_exceptions_received:before;"); // On armv7 we use "synchronous" watchpoints which means the exception is delivered before the instruction executes.
|
|
else
|
|
response.Printf("watchpoint_exceptions_received:after;");
|
|
#else
|
|
response.Printf("watchpoint_exceptions_received:after;");
|
|
#endif
|
|
|
|
switch (lldb::endian::InlHostByteOrder())
|
|
{
|
|
case eByteOrderBig: response.PutCString ("endian:big;"); break;
|
|
case eByteOrderLittle: response.PutCString ("endian:little;"); break;
|
|
case eByteOrderPDP: response.PutCString ("endian:pdp;"); break;
|
|
default: response.PutCString ("endian:unknown;"); break;
|
|
}
|
|
|
|
uint32_t major = UINT32_MAX;
|
|
uint32_t minor = UINT32_MAX;
|
|
uint32_t update = UINT32_MAX;
|
|
if (HostInfo::GetOSVersion(major, minor, update))
|
|
{
|
|
if (major != UINT32_MAX)
|
|
{
|
|
response.Printf("os_version:%u", major);
|
|
if (minor != UINT32_MAX)
|
|
{
|
|
response.Printf(".%u", minor);
|
|
if (update != UINT32_MAX)
|
|
response.Printf(".%u", update);
|
|
}
|
|
response.PutChar(';');
|
|
}
|
|
}
|
|
|
|
std::string s;
|
|
#if !defined(__linux__)
|
|
if (HostInfo::GetOSBuildString(s))
|
|
{
|
|
response.PutCString ("os_build:");
|
|
response.PutCStringAsRawHex8(s.c_str());
|
|
response.PutChar(';');
|
|
}
|
|
if (HostInfo::GetOSKernelDescription(s))
|
|
{
|
|
response.PutCString ("os_kernel:");
|
|
response.PutCStringAsRawHex8(s.c_str());
|
|
response.PutChar(';');
|
|
}
|
|
#endif
|
|
|
|
#if defined(__APPLE__)
|
|
|
|
#if defined(__arm__) || defined(__arm64__) || defined(__aarch64__)
|
|
// For iOS devices, we are connected through a USB Mux so we never pretend
|
|
// to actually have a hostname as far as the remote lldb that is connecting
|
|
// to this lldb-platform is concerned
|
|
response.PutCString ("hostname:");
|
|
response.PutCStringAsRawHex8("127.0.0.1");
|
|
response.PutChar(';');
|
|
#else // #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__)
|
|
if (HostInfo::GetHostname(s))
|
|
{
|
|
response.PutCString ("hostname:");
|
|
response.PutCStringAsRawHex8(s.c_str());
|
|
response.PutChar(';');
|
|
}
|
|
#endif // #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__)
|
|
|
|
#else // #if defined(__APPLE__)
|
|
if (HostInfo::GetHostname(s))
|
|
{
|
|
response.PutCString ("hostname:");
|
|
response.PutCStringAsRawHex8(s.c_str());
|
|
response.PutChar(';');
|
|
}
|
|
#endif // #if defined(__APPLE__)
|
|
|
|
return SendPacketNoLock (response.GetData(), response.GetSize());
|
|
}
|
|
|
|
static void
|
|
CreateProcessInfoResponse (const ProcessInstanceInfo &proc_info, StreamString &response)
|
|
{
|
|
response.Printf ("pid:%" PRIu64 ";ppid:%" PRIu64 ";uid:%i;gid:%i;euid:%i;egid:%i;",
|
|
proc_info.GetProcessID(),
|
|
proc_info.GetParentProcessID(),
|
|
proc_info.GetUserID(),
|
|
proc_info.GetGroupID(),
|
|
proc_info.GetEffectiveUserID(),
|
|
proc_info.GetEffectiveGroupID());
|
|
response.PutCString ("name:");
|
|
response.PutCStringAsRawHex8(proc_info.GetName());
|
|
response.PutChar(';');
|
|
const ArchSpec &proc_arch = proc_info.GetArchitecture();
|
|
if (proc_arch.IsValid())
|
|
{
|
|
const llvm::Triple &proc_triple = proc_arch.GetTriple();
|
|
response.PutCString("triple:");
|
|
response.PutCString(proc_triple.getTriple().c_str());
|
|
response.PutChar(';');
|
|
}
|
|
}
|
|
|
|
static void
|
|
CreateProcessInfoResponse_DebugServerStyle (const ProcessInstanceInfo &proc_info, StreamString &response)
|
|
{
|
|
response.Printf ("pid:%" PRIx64 ";parent-pid:%" PRIx64 ";real-uid:%x;real-gid:%x;effective-uid:%x;effective-gid:%x;",
|
|
proc_info.GetProcessID(),
|
|
proc_info.GetParentProcessID(),
|
|
proc_info.GetUserID(),
|
|
proc_info.GetGroupID(),
|
|
proc_info.GetEffectiveUserID(),
|
|
proc_info.GetEffectiveGroupID());
|
|
|
|
const ArchSpec &proc_arch = proc_info.GetArchitecture();
|
|
if (proc_arch.IsValid())
|
|
{
|
|
const llvm::Triple &proc_triple = proc_arch.GetTriple();
|
|
#if defined(__APPLE__)
|
|
// We'll send cputype/cpusubtype.
|
|
const uint32_t cpu_type = proc_arch.GetMachOCPUType();
|
|
if (cpu_type != 0)
|
|
response.Printf ("cputype:%" PRIx32 ";", cpu_type);
|
|
|
|
const uint32_t cpu_subtype = proc_arch.GetMachOCPUSubType();
|
|
if (cpu_subtype != 0)
|
|
response.Printf ("cpusubtype:%" PRIx32 ";", cpu_subtype);
|
|
|
|
|
|
const std::string vendor = proc_triple.getVendorName ();
|
|
if (!vendor.empty ())
|
|
response.Printf ("vendor:%s;", vendor.c_str ());
|
|
#else
|
|
// We'll send the triple.
|
|
response.Printf ("triple:%s;", proc_triple.getTriple().c_str ());
|
|
#endif
|
|
std::string ostype = proc_triple.getOSName ();
|
|
// Adjust so ostype reports ios for Apple/ARM and Apple/ARM64.
|
|
if (proc_triple.getVendor () == llvm::Triple::Apple)
|
|
{
|
|
switch (proc_triple.getArch ())
|
|
{
|
|
case llvm::Triple::arm:
|
|
case llvm::Triple::aarch64:
|
|
ostype = "ios";
|
|
break;
|
|
default:
|
|
// No change.
|
|
break;
|
|
}
|
|
}
|
|
response.Printf ("ostype:%s;", ostype.c_str ());
|
|
|
|
|
|
switch (proc_arch.GetByteOrder ())
|
|
{
|
|
case lldb::eByteOrderLittle: response.PutCString ("endian:little;"); break;
|
|
case lldb::eByteOrderBig: response.PutCString ("endian:big;"); break;
|
|
case lldb::eByteOrderPDP: response.PutCString ("endian:pdp;"); break;
|
|
default:
|
|
// Nothing.
|
|
break;
|
|
}
|
|
|
|
if (proc_triple.isArch64Bit ())
|
|
response.PutCString ("ptrsize:8;");
|
|
else if (proc_triple.isArch32Bit ())
|
|
response.PutCString ("ptrsize:4;");
|
|
else if (proc_triple.isArch16Bit ())
|
|
response.PutCString ("ptrsize:2;");
|
|
}
|
|
|
|
}
|
|
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qProcessInfo (StringExtractorGDBRemote &packet)
|
|
{
|
|
// Only the gdb server handles this.
|
|
if (!IsGdbServer ())
|
|
return SendUnimplementedResponse (packet.GetStringRef ().c_str ());
|
|
|
|
// Fail if we don't have a current process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
return SendErrorResponse (68);
|
|
|
|
ProcessInstanceInfo proc_info;
|
|
if (Host::GetProcessInfo (m_debugged_process_sp->GetID (), proc_info))
|
|
{
|
|
StreamString response;
|
|
CreateProcessInfoResponse_DebugServerStyle(proc_info, response);
|
|
return SendPacketNoLock (response.GetData (), response.GetSize ());
|
|
}
|
|
|
|
return SendErrorResponse (1);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qProcessInfoPID (StringExtractorGDBRemote &packet)
|
|
{
|
|
// Packet format: "qProcessInfoPID:%i" where %i is the pid
|
|
packet.SetFilePos(::strlen ("qProcessInfoPID:"));
|
|
lldb::pid_t pid = packet.GetU32 (LLDB_INVALID_PROCESS_ID);
|
|
if (pid != LLDB_INVALID_PROCESS_ID)
|
|
{
|
|
ProcessInstanceInfo proc_info;
|
|
if (Host::GetProcessInfo(pid, proc_info))
|
|
{
|
|
StreamString response;
|
|
CreateProcessInfoResponse (proc_info, response);
|
|
return SendPacketNoLock (response.GetData(), response.GetSize());
|
|
}
|
|
}
|
|
return SendErrorResponse (1);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qfProcessInfo (StringExtractorGDBRemote &packet)
|
|
{
|
|
m_proc_infos_index = 0;
|
|
m_proc_infos.Clear();
|
|
|
|
ProcessInstanceInfoMatch match_info;
|
|
packet.SetFilePos(::strlen ("qfProcessInfo"));
|
|
if (packet.GetChar() == ':')
|
|
{
|
|
|
|
std::string key;
|
|
std::string value;
|
|
while (packet.GetNameColonValue(key, value))
|
|
{
|
|
bool success = true;
|
|
if (key.compare("name") == 0)
|
|
{
|
|
StringExtractor extractor;
|
|
extractor.GetStringRef().swap(value);
|
|
extractor.GetHexByteString (value);
|
|
match_info.GetProcessInfo().GetExecutableFile().SetFile(value.c_str(), false);
|
|
}
|
|
else if (key.compare("name_match") == 0)
|
|
{
|
|
if (value.compare("equals") == 0)
|
|
{
|
|
match_info.SetNameMatchType (eNameMatchEquals);
|
|
}
|
|
else if (value.compare("starts_with") == 0)
|
|
{
|
|
match_info.SetNameMatchType (eNameMatchStartsWith);
|
|
}
|
|
else if (value.compare("ends_with") == 0)
|
|
{
|
|
match_info.SetNameMatchType (eNameMatchEndsWith);
|
|
}
|
|
else if (value.compare("contains") == 0)
|
|
{
|
|
match_info.SetNameMatchType (eNameMatchContains);
|
|
}
|
|
else if (value.compare("regex") == 0)
|
|
{
|
|
match_info.SetNameMatchType (eNameMatchRegularExpression);
|
|
}
|
|
else
|
|
{
|
|
success = false;
|
|
}
|
|
}
|
|
else if (key.compare("pid") == 0)
|
|
{
|
|
match_info.GetProcessInfo().SetProcessID (Args::StringToUInt32(value.c_str(), LLDB_INVALID_PROCESS_ID, 0, &success));
|
|
}
|
|
else if (key.compare("parent_pid") == 0)
|
|
{
|
|
match_info.GetProcessInfo().SetParentProcessID (Args::StringToUInt32(value.c_str(), LLDB_INVALID_PROCESS_ID, 0, &success));
|
|
}
|
|
else if (key.compare("uid") == 0)
|
|
{
|
|
match_info.GetProcessInfo().SetUserID (Args::StringToUInt32(value.c_str(), UINT32_MAX, 0, &success));
|
|
}
|
|
else if (key.compare("gid") == 0)
|
|
{
|
|
match_info.GetProcessInfo().SetGroupID (Args::StringToUInt32(value.c_str(), UINT32_MAX, 0, &success));
|
|
}
|
|
else if (key.compare("euid") == 0)
|
|
{
|
|
match_info.GetProcessInfo().SetEffectiveUserID (Args::StringToUInt32(value.c_str(), UINT32_MAX, 0, &success));
|
|
}
|
|
else if (key.compare("egid") == 0)
|
|
{
|
|
match_info.GetProcessInfo().SetEffectiveGroupID (Args::StringToUInt32(value.c_str(), UINT32_MAX, 0, &success));
|
|
}
|
|
else if (key.compare("all_users") == 0)
|
|
{
|
|
match_info.SetMatchAllUsers(Args::StringToBoolean(value.c_str(), false, &success));
|
|
}
|
|
else if (key.compare("triple") == 0)
|
|
{
|
|
match_info.GetProcessInfo().GetArchitecture().SetTriple (value.c_str(), NULL);
|
|
}
|
|
else
|
|
{
|
|
success = false;
|
|
}
|
|
|
|
if (!success)
|
|
return SendErrorResponse (2);
|
|
}
|
|
}
|
|
|
|
if (Host::FindProcesses (match_info, m_proc_infos))
|
|
{
|
|
// We found something, return the first item by calling the get
|
|
// subsequent process info packet handler...
|
|
return Handle_qsProcessInfo (packet);
|
|
}
|
|
return SendErrorResponse (3);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qsProcessInfo (StringExtractorGDBRemote &packet)
|
|
{
|
|
if (m_proc_infos_index < m_proc_infos.GetSize())
|
|
{
|
|
StreamString response;
|
|
CreateProcessInfoResponse (m_proc_infos.GetProcessInfoAtIndex(m_proc_infos_index), response);
|
|
++m_proc_infos_index;
|
|
return SendPacketNoLock (response.GetData(), response.GetSize());
|
|
}
|
|
return SendErrorResponse (4);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qUserName (StringExtractorGDBRemote &packet)
|
|
{
|
|
#if !defined(LLDB_DISABLE_POSIX)
|
|
// Packet format: "qUserName:%i" where %i is the uid
|
|
packet.SetFilePos(::strlen ("qUserName:"));
|
|
uint32_t uid = packet.GetU32 (UINT32_MAX);
|
|
if (uid != UINT32_MAX)
|
|
{
|
|
std::string name;
|
|
if (HostInfo::LookupUserName(uid, name))
|
|
{
|
|
StreamString response;
|
|
response.PutCStringAsRawHex8 (name.c_str());
|
|
return SendPacketNoLock (response.GetData(), response.GetSize());
|
|
}
|
|
}
|
|
#endif
|
|
return SendErrorResponse (5);
|
|
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qGroupName (StringExtractorGDBRemote &packet)
|
|
{
|
|
#if !defined(LLDB_DISABLE_POSIX)
|
|
// Packet format: "qGroupName:%i" where %i is the gid
|
|
packet.SetFilePos(::strlen ("qGroupName:"));
|
|
uint32_t gid = packet.GetU32 (UINT32_MAX);
|
|
if (gid != UINT32_MAX)
|
|
{
|
|
std::string name;
|
|
if (HostInfo::LookupGroupName(gid, name))
|
|
{
|
|
StreamString response;
|
|
response.PutCStringAsRawHex8 (name.c_str());
|
|
return SendPacketNoLock (response.GetData(), response.GetSize());
|
|
}
|
|
}
|
|
#endif
|
|
return SendErrorResponse (6);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qSpeedTest (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen ("qSpeedTest:"));
|
|
|
|
std::string key;
|
|
std::string value;
|
|
bool success = packet.GetNameColonValue(key, value);
|
|
if (success && key.compare("response_size") == 0)
|
|
{
|
|
uint32_t response_size = Args::StringToUInt32(value.c_str(), 0, 0, &success);
|
|
if (success)
|
|
{
|
|
if (response_size == 0)
|
|
return SendOKResponse();
|
|
StreamString response;
|
|
uint32_t bytes_left = response_size;
|
|
response.PutCString("data:");
|
|
while (bytes_left > 0)
|
|
{
|
|
if (bytes_left >= 26)
|
|
{
|
|
response.PutCString("ABCDEFGHIJKLMNOPQRSTUVWXYZ");
|
|
bytes_left -= 26;
|
|
}
|
|
else
|
|
{
|
|
response.Printf ("%*.*s;", bytes_left, bytes_left, "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
|
|
bytes_left = 0;
|
|
}
|
|
}
|
|
return SendPacketNoLock (response.GetData(), response.GetSize());
|
|
}
|
|
}
|
|
return SendErrorResponse (7);
|
|
}
|
|
|
|
//
|
|
//static bool
|
|
//WaitForProcessToSIGSTOP (const lldb::pid_t pid, const int timeout_in_seconds)
|
|
//{
|
|
// const int time_delta_usecs = 100000;
|
|
// const int num_retries = timeout_in_seconds/time_delta_usecs;
|
|
// for (int i=0; i<num_retries; i++)
|
|
// {
|
|
// struct proc_bsdinfo bsd_info;
|
|
// int error = ::proc_pidinfo (pid, PROC_PIDTBSDINFO,
|
|
// (uint64_t) 0,
|
|
// &bsd_info,
|
|
// PROC_PIDTBSDINFO_SIZE);
|
|
//
|
|
// switch (error)
|
|
// {
|
|
// case EINVAL:
|
|
// case ENOTSUP:
|
|
// case ESRCH:
|
|
// case EPERM:
|
|
// return false;
|
|
//
|
|
// default:
|
|
// break;
|
|
//
|
|
// case 0:
|
|
// if (bsd_info.pbi_status == SSTOP)
|
|
// return true;
|
|
// }
|
|
// ::usleep (time_delta_usecs);
|
|
// }
|
|
// return false;
|
|
//}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_A (StringExtractorGDBRemote &packet)
|
|
{
|
|
// The 'A' packet is the most over designed packet ever here with
|
|
// redundant argument indexes, redundant argument lengths and needed hex
|
|
// encoded argument string values. Really all that is needed is a comma
|
|
// separated hex encoded argument value list, but we will stay true to the
|
|
// documented version of the 'A' packet here...
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
int actual_arg_index = 0;
|
|
|
|
packet.SetFilePos(1); // Skip the 'A'
|
|
bool success = true;
|
|
while (success && packet.GetBytesLeft() > 0)
|
|
{
|
|
// Decode the decimal argument string length. This length is the
|
|
// number of hex nibbles in the argument string value.
|
|
const uint32_t arg_len = packet.GetU32(UINT32_MAX);
|
|
if (arg_len == UINT32_MAX)
|
|
success = false;
|
|
else
|
|
{
|
|
// Make sure the argument hex string length is followed by a comma
|
|
if (packet.GetChar() != ',')
|
|
success = false;
|
|
else
|
|
{
|
|
// Decode the argument index. We ignore this really because
|
|
// who would really send down the arguments in a random order???
|
|
const uint32_t arg_idx = packet.GetU32(UINT32_MAX);
|
|
if (arg_idx == UINT32_MAX)
|
|
success = false;
|
|
else
|
|
{
|
|
// Make sure the argument index is followed by a comma
|
|
if (packet.GetChar() != ',')
|
|
success = false;
|
|
else
|
|
{
|
|
// Decode the argument string value from hex bytes
|
|
// back into a UTF8 string and make sure the length
|
|
// matches the one supplied in the packet
|
|
std::string arg;
|
|
if (packet.GetHexByteStringFixedLength(arg, arg_len) != (arg_len / 2))
|
|
success = false;
|
|
else
|
|
{
|
|
// If there are any bytes left
|
|
if (packet.GetBytesLeft())
|
|
{
|
|
if (packet.GetChar() != ',')
|
|
success = false;
|
|
}
|
|
|
|
if (success)
|
|
{
|
|
if (arg_idx == 0)
|
|
m_process_launch_info.GetExecutableFile().SetFile(arg.c_str(), false);
|
|
m_process_launch_info.GetArguments().AppendArgument(arg.c_str());
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s added arg %d: \"%s\"", __FUNCTION__, actual_arg_index, arg.c_str ());
|
|
++actual_arg_index;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (success)
|
|
{
|
|
m_process_launch_error = LaunchProcess ();
|
|
if (m_process_launch_info.GetProcessID() != LLDB_INVALID_PROCESS_ID)
|
|
{
|
|
return SendOKResponse ();
|
|
}
|
|
else
|
|
{
|
|
Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
if (log)
|
|
log->Printf("GDBRemoteCommunicationServer::%s failed to launch exe: %s",
|
|
__FUNCTION__,
|
|
m_process_launch_error.AsCString());
|
|
|
|
}
|
|
}
|
|
return SendErrorResponse (8);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qC (StringExtractorGDBRemote &packet)
|
|
{
|
|
StreamString response;
|
|
|
|
if (IsGdbServer ())
|
|
{
|
|
// Fail if we don't have a current process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
return SendErrorResponse (68);
|
|
|
|
// Make sure we set the current thread so g and p packets return
|
|
// the data the gdb will expect.
|
|
lldb::tid_t tid = m_debugged_process_sp->GetCurrentThreadID ();
|
|
SetCurrentThreadID (tid);
|
|
|
|
NativeThreadProtocolSP thread_sp = m_debugged_process_sp->GetCurrentThread ();
|
|
if (!thread_sp)
|
|
return SendErrorResponse (69);
|
|
|
|
response.Printf ("QC%" PRIx64, thread_sp->GetID ());
|
|
}
|
|
else
|
|
{
|
|
// NOTE: lldb should now be using qProcessInfo for process IDs. This path here
|
|
// should not be used. It is reporting process id instead of thread id. The
|
|
// correct answer doesn't seem to make much sense for lldb-platform.
|
|
// CONSIDER: flip to "unsupported".
|
|
lldb::pid_t pid = m_process_launch_info.GetProcessID();
|
|
response.Printf("QC%" PRIx64, pid);
|
|
|
|
// this should always be platform here
|
|
assert (m_is_platform && "this code path should only be traversed for lldb-platform");
|
|
|
|
if (m_is_platform)
|
|
{
|
|
// If we launch a process and this GDB server is acting as a platform,
|
|
// then we need to clear the process launch state so we can start
|
|
// launching another process. In order to launch a process a bunch or
|
|
// packets need to be sent: environment packets, working directory,
|
|
// disable ASLR, and many more settings. When we launch a process we
|
|
// then need to know when to clear this information. Currently we are
|
|
// selecting the 'qC' packet as that packet which seems to make the most
|
|
// sense.
|
|
if (pid != LLDB_INVALID_PROCESS_ID)
|
|
{
|
|
m_process_launch_info.Clear();
|
|
}
|
|
}
|
|
}
|
|
return SendPacketNoLock (response.GetData(), response.GetSize());
|
|
}
|
|
|
|
bool
|
|
GDBRemoteCommunicationServer::DebugserverProcessReaped (lldb::pid_t pid)
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
FreePortForProcess(pid);
|
|
return m_spawned_pids.erase(pid) > 0;
|
|
}
|
|
bool
|
|
GDBRemoteCommunicationServer::ReapDebugserverProcess (void *callback_baton,
|
|
lldb::pid_t pid,
|
|
bool exited,
|
|
int signal, // Zero for no signal
|
|
int status) // Exit value of process if signal is zero
|
|
{
|
|
GDBRemoteCommunicationServer *server = (GDBRemoteCommunicationServer *)callback_baton;
|
|
server->DebugserverProcessReaped (pid);
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
GDBRemoteCommunicationServer::DebuggedProcessReaped (lldb::pid_t pid)
|
|
{
|
|
// reap a process that we were debugging (but not debugserver)
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
return m_spawned_pids.erase(pid) > 0;
|
|
}
|
|
|
|
bool
|
|
GDBRemoteCommunicationServer::ReapDebuggedProcess (void *callback_baton,
|
|
lldb::pid_t pid,
|
|
bool exited,
|
|
int signal, // Zero for no signal
|
|
int status) // Exit value of process if signal is zero
|
|
{
|
|
GDBRemoteCommunicationServer *server = (GDBRemoteCommunicationServer *)callback_baton;
|
|
server->DebuggedProcessReaped (pid);
|
|
return true;
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qLaunchGDBServer (StringExtractorGDBRemote &packet)
|
|
{
|
|
#ifdef _WIN32
|
|
return SendErrorResponse(9);
|
|
#else
|
|
Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
|
|
|
|
// Spawn a local debugserver as a platform so we can then attach or launch
|
|
// a process...
|
|
|
|
if (m_is_platform)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s() called", __FUNCTION__);
|
|
|
|
// Sleep and wait a bit for debugserver to start to listen...
|
|
ConnectionFileDescriptor file_conn;
|
|
std::string hostname;
|
|
// TODO: /tmp/ should not be hardcoded. User might want to override /tmp
|
|
// with the TMPDIR environment variable
|
|
packet.SetFilePos(::strlen ("qLaunchGDBServer;"));
|
|
std::string name;
|
|
std::string value;
|
|
uint16_t port = UINT16_MAX;
|
|
while (packet.GetNameColonValue(name, value))
|
|
{
|
|
if (name.compare ("host") == 0)
|
|
hostname.swap(value);
|
|
else if (name.compare ("port") == 0)
|
|
port = Args::StringToUInt32(value.c_str(), 0, 0);
|
|
}
|
|
if (port == UINT16_MAX)
|
|
port = GetNextAvailablePort();
|
|
|
|
// Spawn a new thread to accept the port that gets bound after
|
|
// binding to port 0 (zero).
|
|
|
|
// Spawn a debugserver and try to get the port it listens to.
|
|
ProcessLaunchInfo debugserver_launch_info;
|
|
if (hostname.empty())
|
|
hostname = "127.0.0.1";
|
|
if (log)
|
|
log->Printf("Launching debugserver with: %s:%u...\n", hostname.c_str(), port);
|
|
|
|
debugserver_launch_info.SetMonitorProcessCallback(ReapDebugserverProcess, this, false);
|
|
|
|
Error error = StartDebugserverProcess (hostname.empty() ? NULL : hostname.c_str(),
|
|
port,
|
|
debugserver_launch_info,
|
|
port);
|
|
|
|
lldb::pid_t debugserver_pid = debugserver_launch_info.GetProcessID();
|
|
|
|
|
|
if (debugserver_pid != LLDB_INVALID_PROCESS_ID)
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
m_spawned_pids.insert(debugserver_pid);
|
|
if (port > 0)
|
|
AssociatePortWithProcess(port, debugserver_pid);
|
|
}
|
|
else
|
|
{
|
|
if (port > 0)
|
|
FreePort (port);
|
|
}
|
|
|
|
if (error.Success())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s() debugserver launched successfully as pid %" PRIu64, __FUNCTION__, debugserver_pid);
|
|
|
|
char response[256];
|
|
const int response_len = ::snprintf (response, sizeof(response), "pid:%" PRIu64 ";port:%u;", debugserver_pid, port + m_port_offset);
|
|
assert (response_len < (int)sizeof(response));
|
|
PacketResult packet_result = SendPacketNoLock (response, response_len);
|
|
|
|
if (packet_result != PacketResult::Success)
|
|
{
|
|
if (debugserver_pid != LLDB_INVALID_PROCESS_ID)
|
|
::kill (debugserver_pid, SIGINT);
|
|
}
|
|
return packet_result;
|
|
}
|
|
else
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s() debugserver launch failed: %s", __FUNCTION__, error.AsCString ());
|
|
}
|
|
}
|
|
return SendErrorResponse (9);
|
|
#endif
|
|
}
|
|
|
|
bool
|
|
GDBRemoteCommunicationServer::KillSpawnedProcess (lldb::pid_t pid)
|
|
{
|
|
// make sure we know about this process
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
if (m_spawned_pids.find(pid) == m_spawned_pids.end())
|
|
return false;
|
|
}
|
|
|
|
// first try a SIGTERM (standard kill)
|
|
Host::Kill (pid, SIGTERM);
|
|
|
|
// check if that worked
|
|
for (size_t i=0; i<10; ++i)
|
|
{
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
if (m_spawned_pids.find(pid) == m_spawned_pids.end())
|
|
{
|
|
// it is now killed
|
|
return true;
|
|
}
|
|
}
|
|
usleep (10000);
|
|
}
|
|
|
|
// check one more time after the final usleep
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
if (m_spawned_pids.find(pid) == m_spawned_pids.end())
|
|
return true;
|
|
}
|
|
|
|
// the launched process still lives. Now try killing it again,
|
|
// this time with an unblockable signal.
|
|
Host::Kill (pid, SIGKILL);
|
|
|
|
for (size_t i=0; i<10; ++i)
|
|
{
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
if (m_spawned_pids.find(pid) == m_spawned_pids.end())
|
|
{
|
|
// it is now killed
|
|
return true;
|
|
}
|
|
}
|
|
usleep (10000);
|
|
}
|
|
|
|
// check one more time after the final usleep
|
|
// Scope for locker
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
if (m_spawned_pids.find(pid) == m_spawned_pids.end())
|
|
return true;
|
|
}
|
|
|
|
// no luck - the process still lives
|
|
return false;
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qKillSpawnedProcess (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen ("qKillSpawnedProcess:"));
|
|
|
|
lldb::pid_t pid = packet.GetU64(LLDB_INVALID_PROCESS_ID);
|
|
|
|
// verify that we know anything about this pid.
|
|
// Scope for locker
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
if (m_spawned_pids.find(pid) == m_spawned_pids.end())
|
|
{
|
|
// not a pid we know about
|
|
return SendErrorResponse (10);
|
|
}
|
|
}
|
|
|
|
// go ahead and attempt to kill the spawned process
|
|
if (KillSpawnedProcess (pid))
|
|
return SendOKResponse ();
|
|
else
|
|
return SendErrorResponse (11);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_k (StringExtractorGDBRemote &packet)
|
|
{
|
|
// ignore for now if we're lldb_platform
|
|
if (m_is_platform)
|
|
return SendUnimplementedResponse (packet.GetStringRef().c_str());
|
|
|
|
// shutdown all spawned processes
|
|
std::set<lldb::pid_t> spawned_pids_copy;
|
|
|
|
// copy pids
|
|
{
|
|
Mutex::Locker locker (m_spawned_pids_mutex);
|
|
spawned_pids_copy.insert (m_spawned_pids.begin (), m_spawned_pids.end ());
|
|
}
|
|
|
|
// nuke the spawned processes
|
|
for (auto it = spawned_pids_copy.begin (); it != spawned_pids_copy.end (); ++it)
|
|
{
|
|
lldb::pid_t spawned_pid = *it;
|
|
if (!KillSpawnedProcess (spawned_pid))
|
|
{
|
|
fprintf (stderr, "%s: failed to kill spawned pid %" PRIu64 ", ignoring.\n", __FUNCTION__, spawned_pid);
|
|
}
|
|
}
|
|
|
|
FlushInferiorOutput ();
|
|
|
|
// No OK response for kill packet.
|
|
// return SendOKResponse ();
|
|
return PacketResult::Success;
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qLaunchSuccess (StringExtractorGDBRemote &packet)
|
|
{
|
|
if (m_process_launch_error.Success())
|
|
return SendOKResponse();
|
|
StreamString response;
|
|
response.PutChar('E');
|
|
response.PutCString(m_process_launch_error.AsCString("<unknown error>"));
|
|
return SendPacketNoLock (response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QEnvironment (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen ("QEnvironment:"));
|
|
const uint32_t bytes_left = packet.GetBytesLeft();
|
|
if (bytes_left > 0)
|
|
{
|
|
m_process_launch_info.GetEnvironmentEntries ().AppendArgument (packet.Peek());
|
|
return SendOKResponse ();
|
|
}
|
|
return SendErrorResponse (12);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QLaunchArch (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen ("QLaunchArch:"));
|
|
const uint32_t bytes_left = packet.GetBytesLeft();
|
|
if (bytes_left > 0)
|
|
{
|
|
const char* arch_triple = packet.Peek();
|
|
ArchSpec arch_spec(arch_triple,NULL);
|
|
m_process_launch_info.SetArchitecture(arch_spec);
|
|
return SendOKResponse();
|
|
}
|
|
return SendErrorResponse(13);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QSetDisableASLR (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen ("QSetDisableASLR:"));
|
|
if (packet.GetU32(0))
|
|
m_process_launch_info.GetFlags().Set (eLaunchFlagDisableASLR);
|
|
else
|
|
m_process_launch_info.GetFlags().Clear (eLaunchFlagDisableASLR);
|
|
return SendOKResponse ();
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QSetWorkingDir (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen ("QSetWorkingDir:"));
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
if (m_is_platform)
|
|
{
|
|
#ifdef _WIN32
|
|
// Not implemented on Windows
|
|
return SendUnimplementedResponse("GDBRemoteCommunicationServer::Handle_QSetWorkingDir unimplemented");
|
|
#else
|
|
// If this packet is sent to a platform, then change the current working directory
|
|
if (::chdir(path.c_str()) != 0)
|
|
return SendErrorResponse(errno);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
m_process_launch_info.SwapWorkingDirectory (path);
|
|
}
|
|
return SendOKResponse ();
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qGetWorkingDir (StringExtractorGDBRemote &packet)
|
|
{
|
|
StreamString response;
|
|
|
|
if (m_is_platform)
|
|
{
|
|
// If this packet is sent to a platform, then change the current working directory
|
|
char cwd[PATH_MAX];
|
|
if (getcwd(cwd, sizeof(cwd)) == NULL)
|
|
{
|
|
return SendErrorResponse(errno);
|
|
}
|
|
else
|
|
{
|
|
response.PutBytesAsRawHex8(cwd, strlen(cwd));
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
const char *working_dir = m_process_launch_info.GetWorkingDirectory();
|
|
if (working_dir && working_dir[0])
|
|
{
|
|
response.PutBytesAsRawHex8(working_dir, strlen(working_dir));
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
else
|
|
{
|
|
return SendErrorResponse(14);
|
|
}
|
|
}
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QSetSTDIN (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen ("QSetSTDIN:"));
|
|
FileAction file_action;
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
const bool read = false;
|
|
const bool write = true;
|
|
if (file_action.Open(STDIN_FILENO, path.c_str(), read, write))
|
|
{
|
|
m_process_launch_info.AppendFileAction(file_action);
|
|
return SendOKResponse ();
|
|
}
|
|
return SendErrorResponse (15);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QSetSTDOUT (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen ("QSetSTDOUT:"));
|
|
FileAction file_action;
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
const bool read = true;
|
|
const bool write = false;
|
|
if (file_action.Open(STDOUT_FILENO, path.c_str(), read, write))
|
|
{
|
|
m_process_launch_info.AppendFileAction(file_action);
|
|
return SendOKResponse ();
|
|
}
|
|
return SendErrorResponse (16);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QSetSTDERR (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen ("QSetSTDERR:"));
|
|
FileAction file_action;
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
const bool read = true;
|
|
const bool write = false;
|
|
if (file_action.Open(STDERR_FILENO, path.c_str(), read, write))
|
|
{
|
|
m_process_launch_info.AppendFileAction(file_action);
|
|
return SendOKResponse ();
|
|
}
|
|
return SendErrorResponse (17);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_C (StringExtractorGDBRemote &packet)
|
|
{
|
|
if (!IsGdbServer ())
|
|
return SendUnimplementedResponse (packet.GetStringRef().c_str());
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS|LIBLLDB_LOG_THREAD));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s called", __FUNCTION__);
|
|
|
|
// Ensure we have a native process.
|
|
if (!m_debugged_process_sp)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s no debugged process shared pointer", __FUNCTION__);
|
|
return SendErrorResponse (0x36);
|
|
}
|
|
|
|
// Pull out the signal number.
|
|
packet.SetFilePos (::strlen ("C"));
|
|
if (packet.GetBytesLeft () < 1)
|
|
{
|
|
// Shouldn't be using a C without a signal.
|
|
return SendIllFormedResponse (packet, "C packet specified without signal.");
|
|
}
|
|
const uint32_t signo = packet.GetHexMaxU32 (false, std::numeric_limits<uint32_t>::max ());
|
|
if (signo == std::numeric_limits<uint32_t>::max ())
|
|
return SendIllFormedResponse (packet, "failed to parse signal number");
|
|
|
|
// Handle optional continue address.
|
|
if (packet.GetBytesLeft () > 0)
|
|
{
|
|
// FIXME add continue at address support for $C{signo}[;{continue-address}].
|
|
if (*packet.Peek () == ';')
|
|
return SendUnimplementedResponse (packet.GetStringRef().c_str());
|
|
else
|
|
return SendIllFormedResponse (packet, "unexpected content after $C{signal-number}");
|
|
}
|
|
|
|
lldb_private::ResumeActionList resume_actions (StateType::eStateRunning, 0);
|
|
Error error;
|
|
|
|
// We have two branches: what to do if a continue thread is specified (in which case we target
|
|
// sending the signal to that thread), or when we don't have a continue thread set (in which
|
|
// case we send a signal to the process).
|
|
|
|
// TODO discuss with Greg Clayton, make sure this makes sense.
|
|
|
|
lldb::tid_t signal_tid = GetContinueThreadID ();
|
|
if (signal_tid != LLDB_INVALID_THREAD_ID)
|
|
{
|
|
// The resume action for the continue thread (or all threads if a continue thread is not set).
|
|
lldb_private::ResumeAction action = { GetContinueThreadID (), StateType::eStateRunning, static_cast<int> (signo) };
|
|
|
|
// Add the action for the continue thread (or all threads when the continue thread isn't present).
|
|
resume_actions.Append (action);
|
|
}
|
|
else
|
|
{
|
|
// Send the signal to the process since we weren't targeting a specific continue thread with the signal.
|
|
error = m_debugged_process_sp->Signal (signo);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed to send signal for process %" PRIu64 ": %s",
|
|
__FUNCTION__,
|
|
m_debugged_process_sp->GetID (),
|
|
error.AsCString ());
|
|
|
|
return SendErrorResponse (0x52);
|
|
}
|
|
}
|
|
|
|
// Resume the threads.
|
|
error = m_debugged_process_sp->Resume (resume_actions);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed to resume threads for process %" PRIu64 ": %s",
|
|
__FUNCTION__,
|
|
m_debugged_process_sp->GetID (),
|
|
error.AsCString ());
|
|
|
|
return SendErrorResponse (0x38);
|
|
}
|
|
|
|
// Don't send an "OK" packet; response is the stopped/exited message.
|
|
return PacketResult::Success;
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_c (StringExtractorGDBRemote &packet, bool skip_file_pos_adjustment)
|
|
{
|
|
if (!IsGdbServer ())
|
|
return SendUnimplementedResponse (packet.GetStringRef().c_str());
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS|LIBLLDB_LOG_THREAD));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s called", __FUNCTION__);
|
|
|
|
// We reuse this method in vCont - don't double adjust the file position.
|
|
if (!skip_file_pos_adjustment)
|
|
packet.SetFilePos (::strlen ("c"));
|
|
|
|
// For now just support all continue.
|
|
const bool has_continue_address = (packet.GetBytesLeft () > 0);
|
|
if (has_continue_address)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s not implemented for c{address} variant [%s remains]", __FUNCTION__, packet.Peek ());
|
|
return SendUnimplementedResponse (packet.GetStringRef().c_str());
|
|
}
|
|
|
|
// Ensure we have a native process.
|
|
if (!m_debugged_process_sp)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s no debugged process shared pointer", __FUNCTION__);
|
|
return SendErrorResponse (0x36);
|
|
}
|
|
|
|
// Build the ResumeActionList
|
|
lldb_private::ResumeActionList actions (StateType::eStateRunning, 0);
|
|
|
|
Error error = m_debugged_process_sp->Resume (actions);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
{
|
|
log->Printf ("GDBRemoteCommunicationServer::%s c failed for process %" PRIu64 ": %s",
|
|
__FUNCTION__,
|
|
m_debugged_process_sp->GetID (),
|
|
error.AsCString ());
|
|
}
|
|
return SendErrorResponse (GDBRemoteServerError::eErrorResume);
|
|
}
|
|
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s continued process %" PRIu64, __FUNCTION__, m_debugged_process_sp->GetID ());
|
|
|
|
// No response required from continue.
|
|
return PacketResult::Success;
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vCont_actions (StringExtractorGDBRemote &packet)
|
|
{
|
|
if (!IsGdbServer ())
|
|
{
|
|
// only llgs supports $vCont.
|
|
return SendUnimplementedResponse (packet.GetStringRef().c_str());
|
|
}
|
|
|
|
// We handle $vCont messages for c.
|
|
// TODO add C, s and S.
|
|
StreamString response;
|
|
response.Printf("vCont;c;C;s;S");
|
|
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vCont (StringExtractorGDBRemote &packet)
|
|
{
|
|
if (!IsGdbServer ())
|
|
{
|
|
// only llgs supports $vCont
|
|
return SendUnimplementedResponse (packet.GetStringRef().c_str());
|
|
}
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s handling vCont packet", __FUNCTION__);
|
|
|
|
packet.SetFilePos (::strlen ("vCont"));
|
|
|
|
// Check if this is all continue (no options or ";c").
|
|
if (!packet.GetBytesLeft () || (::strcmp (packet.Peek (), ";c") == 0))
|
|
{
|
|
// Move the packet past the ";c".
|
|
if (packet.GetBytesLeft ())
|
|
packet.SetFilePos (packet.GetFilePos () + ::strlen (";c"));
|
|
|
|
const bool skip_file_pos_adjustment = true;
|
|
return Handle_c (packet, skip_file_pos_adjustment);
|
|
}
|
|
else if (::strcmp (packet.Peek (), ";s") == 0)
|
|
{
|
|
// Move past the ';', then do a simple 's'.
|
|
packet.SetFilePos (packet.GetFilePos () + 1);
|
|
return Handle_s (packet);
|
|
}
|
|
|
|
// Ensure we have a native process.
|
|
if (!m_debugged_process_sp)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s no debugged process shared pointer", __FUNCTION__);
|
|
return SendErrorResponse (0x36);
|
|
}
|
|
|
|
ResumeActionList thread_actions;
|
|
|
|
while (packet.GetBytesLeft () && *packet.Peek () == ';')
|
|
{
|
|
// Skip the semi-colon.
|
|
packet.GetChar ();
|
|
|
|
// Build up the thread action.
|
|
ResumeAction thread_action;
|
|
thread_action.tid = LLDB_INVALID_THREAD_ID;
|
|
thread_action.state = eStateInvalid;
|
|
thread_action.signal = 0;
|
|
|
|
const char action = packet.GetChar ();
|
|
switch (action)
|
|
{
|
|
case 'C':
|
|
thread_action.signal = packet.GetHexMaxU32 (false, 0);
|
|
if (thread_action.signal == 0)
|
|
return SendIllFormedResponse (packet, "Could not parse signal in vCont packet C action");
|
|
// Fall through to next case...
|
|
|
|
case 'c':
|
|
// Continue
|
|
thread_action.state = eStateRunning;
|
|
break;
|
|
|
|
case 'S':
|
|
thread_action.signal = packet.GetHexMaxU32 (false, 0);
|
|
if (thread_action.signal == 0)
|
|
return SendIllFormedResponse (packet, "Could not parse signal in vCont packet S action");
|
|
// Fall through to next case...
|
|
|
|
case 's':
|
|
// Step
|
|
thread_action.state = eStateStepping;
|
|
break;
|
|
|
|
default:
|
|
return SendIllFormedResponse (packet, "Unsupported vCont action");
|
|
break;
|
|
}
|
|
|
|
// Parse out optional :{thread-id} value.
|
|
if (packet.GetBytesLeft () && (*packet.Peek () == ':'))
|
|
{
|
|
// Consume the separator.
|
|
packet.GetChar ();
|
|
|
|
thread_action.tid = packet.GetHexMaxU32 (false, LLDB_INVALID_THREAD_ID);
|
|
if (thread_action.tid == LLDB_INVALID_THREAD_ID)
|
|
return SendIllFormedResponse (packet, "Could not parse thread number in vCont packet");
|
|
}
|
|
|
|
thread_actions.Append (thread_action);
|
|
}
|
|
|
|
// If a default action for all other threads wasn't mentioned
|
|
// then we should stop the threads.
|
|
thread_actions.SetDefaultThreadActionIfNeeded (eStateStopped, 0);
|
|
|
|
Error error = m_debugged_process_sp->Resume (thread_actions);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
{
|
|
log->Printf ("GDBRemoteCommunicationServer::%s vCont failed for process %" PRIu64 ": %s",
|
|
__FUNCTION__,
|
|
m_debugged_process_sp->GetID (),
|
|
error.AsCString ());
|
|
}
|
|
return SendErrorResponse (GDBRemoteServerError::eErrorResume);
|
|
}
|
|
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s continued process %" PRIu64, __FUNCTION__, m_debugged_process_sp->GetID ());
|
|
|
|
// No response required from vCont.
|
|
return PacketResult::Success;
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QStartNoAckMode (StringExtractorGDBRemote &packet)
|
|
{
|
|
// Send response first before changing m_send_acks to we ack this packet
|
|
PacketResult packet_result = SendOKResponse ();
|
|
m_send_acks = false;
|
|
return packet_result;
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qPlatform_mkdir (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("qPlatform_mkdir:"));
|
|
mode_t mode = packet.GetHexMaxU32(false, UINT32_MAX);
|
|
if (packet.GetChar() == ',')
|
|
{
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
Error error = FileSystem::MakeDirectory(path.c_str(), mode);
|
|
if (error.Success())
|
|
return SendPacketNoLock ("OK", 2);
|
|
else
|
|
return SendErrorResponse(error.GetError());
|
|
}
|
|
return SendErrorResponse(20);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qPlatform_chmod (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("qPlatform_chmod:"));
|
|
|
|
mode_t mode = packet.GetHexMaxU32(false, UINT32_MAX);
|
|
if (packet.GetChar() == ',')
|
|
{
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
Error error = FileSystem::SetFilePermissions(path.c_str(), mode);
|
|
if (error.Success())
|
|
return SendPacketNoLock ("OK", 2);
|
|
else
|
|
return SendErrorResponse(error.GetError());
|
|
}
|
|
return SendErrorResponse(19);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_Open (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("vFile:open:"));
|
|
std::string path;
|
|
packet.GetHexByteStringTerminatedBy(path,',');
|
|
if (!path.empty())
|
|
{
|
|
if (packet.GetChar() == ',')
|
|
{
|
|
uint32_t flags = packet.GetHexMaxU32(false, 0);
|
|
if (packet.GetChar() == ',')
|
|
{
|
|
mode_t mode = packet.GetHexMaxU32(false, 0600);
|
|
Error error;
|
|
int fd = ::open (path.c_str(), flags, mode);
|
|
const int save_errno = fd == -1 ? errno : 0;
|
|
StreamString response;
|
|
response.PutChar('F');
|
|
response.Printf("%i", fd);
|
|
if (save_errno)
|
|
response.Printf(",%i", save_errno);
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
}
|
|
}
|
|
return SendErrorResponse(18);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_Close (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("vFile:close:"));
|
|
int fd = packet.GetS32(-1);
|
|
Error error;
|
|
int err = -1;
|
|
int save_errno = 0;
|
|
if (fd >= 0)
|
|
{
|
|
err = close(fd);
|
|
save_errno = err == -1 ? errno : 0;
|
|
}
|
|
else
|
|
{
|
|
save_errno = EINVAL;
|
|
}
|
|
StreamString response;
|
|
response.PutChar('F');
|
|
response.Printf("%i", err);
|
|
if (save_errno)
|
|
response.Printf(",%i", save_errno);
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_pRead (StringExtractorGDBRemote &packet)
|
|
{
|
|
#ifdef _WIN32
|
|
// Not implemented on Windows
|
|
return SendUnimplementedResponse("GDBRemoteCommunicationServer::Handle_vFile_pRead() unimplemented");
|
|
#else
|
|
StreamGDBRemote response;
|
|
packet.SetFilePos(::strlen("vFile:pread:"));
|
|
int fd = packet.GetS32(-1);
|
|
if (packet.GetChar() == ',')
|
|
{
|
|
uint64_t count = packet.GetU64(UINT64_MAX);
|
|
if (packet.GetChar() == ',')
|
|
{
|
|
uint64_t offset = packet.GetU64(UINT32_MAX);
|
|
if (count == UINT64_MAX)
|
|
{
|
|
response.Printf("F-1:%i", EINVAL);
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
std::string buffer(count, 0);
|
|
const ssize_t bytes_read = ::pread (fd, &buffer[0], buffer.size(), offset);
|
|
const int save_errno = bytes_read == -1 ? errno : 0;
|
|
response.PutChar('F');
|
|
response.Printf("%zi", bytes_read);
|
|
if (save_errno)
|
|
response.Printf(",%i", save_errno);
|
|
else
|
|
{
|
|
response.PutChar(';');
|
|
response.PutEscapedBytes(&buffer[0], bytes_read);
|
|
}
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
}
|
|
return SendErrorResponse(21);
|
|
|
|
#endif
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_pWrite (StringExtractorGDBRemote &packet)
|
|
{
|
|
#ifdef _WIN32
|
|
return SendUnimplementedResponse("GDBRemoteCommunicationServer::Handle_vFile_pWrite() unimplemented");
|
|
#else
|
|
packet.SetFilePos(::strlen("vFile:pwrite:"));
|
|
|
|
StreamGDBRemote response;
|
|
response.PutChar('F');
|
|
|
|
int fd = packet.GetU32(UINT32_MAX);
|
|
if (packet.GetChar() == ',')
|
|
{
|
|
off_t offset = packet.GetU64(UINT32_MAX);
|
|
if (packet.GetChar() == ',')
|
|
{
|
|
std::string buffer;
|
|
if (packet.GetEscapedBinaryData(buffer))
|
|
{
|
|
const ssize_t bytes_written = ::pwrite (fd, buffer.data(), buffer.size(), offset);
|
|
const int save_errno = bytes_written == -1 ? errno : 0;
|
|
response.Printf("%zi", bytes_written);
|
|
if (save_errno)
|
|
response.Printf(",%i", save_errno);
|
|
}
|
|
else
|
|
{
|
|
response.Printf ("-1,%i", EINVAL);
|
|
}
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
}
|
|
return SendErrorResponse(27);
|
|
#endif
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_Size (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("vFile:size:"));
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
if (!path.empty())
|
|
{
|
|
lldb::user_id_t retcode = FileSystem::GetFileSize(FileSpec(path.c_str(), false));
|
|
StreamString response;
|
|
response.PutChar('F');
|
|
response.PutHex64(retcode);
|
|
if (retcode == UINT64_MAX)
|
|
{
|
|
response.PutChar(',');
|
|
response.PutHex64(retcode); // TODO: replace with Host::GetSyswideErrorCode()
|
|
}
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
return SendErrorResponse(22);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_Mode (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("vFile:mode:"));
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
if (!path.empty())
|
|
{
|
|
Error error;
|
|
const uint32_t mode = File::GetPermissions(path.c_str(), error);
|
|
StreamString response;
|
|
response.Printf("F%u", mode);
|
|
if (mode == 0 || error.Fail())
|
|
response.Printf(",%i", (int)error.GetError());
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
return SendErrorResponse(23);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_Exists (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("vFile:exists:"));
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
if (!path.empty())
|
|
{
|
|
bool retcode = FileSystem::GetFileExists(FileSpec(path.c_str(), false));
|
|
StreamString response;
|
|
response.PutChar('F');
|
|
response.PutChar(',');
|
|
if (retcode)
|
|
response.PutChar('1');
|
|
else
|
|
response.PutChar('0');
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
return SendErrorResponse(24);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_symlink (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("vFile:symlink:"));
|
|
std::string dst, src;
|
|
packet.GetHexByteStringTerminatedBy(dst, ',');
|
|
packet.GetChar(); // Skip ',' char
|
|
packet.GetHexByteString(src);
|
|
Error error = FileSystem::Symlink(src.c_str(), dst.c_str());
|
|
StreamString response;
|
|
response.Printf("F%u,%u", error.GetError(), error.GetError());
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_unlink (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("vFile:unlink:"));
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
Error error = FileSystem::Unlink(path.c_str());
|
|
StreamString response;
|
|
response.Printf("F%u,%u", error.GetError(), error.GetError());
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qPlatform_shell (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("qPlatform_shell:"));
|
|
std::string path;
|
|
std::string working_dir;
|
|
packet.GetHexByteStringTerminatedBy(path,',');
|
|
if (!path.empty())
|
|
{
|
|
if (packet.GetChar() == ',')
|
|
{
|
|
// FIXME: add timeout to qPlatform_shell packet
|
|
// uint32_t timeout = packet.GetHexMaxU32(false, 32);
|
|
uint32_t timeout = 10;
|
|
if (packet.GetChar() == ',')
|
|
packet.GetHexByteString(working_dir);
|
|
int status, signo;
|
|
std::string output;
|
|
Error err = Host::RunShellCommand(path.c_str(),
|
|
working_dir.empty() ? NULL : working_dir.c_str(),
|
|
&status, &signo, &output, timeout);
|
|
StreamGDBRemote response;
|
|
if (err.Fail())
|
|
{
|
|
response.PutCString("F,");
|
|
response.PutHex32(UINT32_MAX);
|
|
}
|
|
else
|
|
{
|
|
response.PutCString("F,");
|
|
response.PutHex32(status);
|
|
response.PutChar(',');
|
|
response.PutHex32(signo);
|
|
response.PutChar(',');
|
|
response.PutEscapedBytes(output.c_str(), output.size());
|
|
}
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
}
|
|
return SendErrorResponse(24);
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::SetCurrentThreadID (lldb::tid_t tid)
|
|
{
|
|
assert (IsGdbServer () && "SetCurrentThreadID() called when not GdbServer code");
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_THREAD));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s setting current thread id to %" PRIu64, __FUNCTION__, tid);
|
|
|
|
m_current_tid = tid;
|
|
if (m_debugged_process_sp)
|
|
m_debugged_process_sp->SetCurrentThreadID (m_current_tid);
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::SetContinueThreadID (lldb::tid_t tid)
|
|
{
|
|
assert (IsGdbServer () && "SetContinueThreadID() called when not GdbServer code");
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_THREAD));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s setting continue thread id to %" PRIu64, __FUNCTION__, tid);
|
|
|
|
m_continue_tid = tid;
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_stop_reason (StringExtractorGDBRemote &packet)
|
|
{
|
|
// Handle the $? gdbremote command.
|
|
if (!IsGdbServer ())
|
|
return SendUnimplementedResponse("GDBRemoteCommunicationServer::Handle_stop_reason() unimplemented");
|
|
|
|
// If no process, indicate error
|
|
if (!m_debugged_process_sp)
|
|
return SendErrorResponse (02);
|
|
|
|
return SendStopReasonForState (m_debugged_process_sp->GetState (), true);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::SendStopReasonForState (lldb::StateType process_state, bool flush_on_exit)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
|
|
switch (process_state)
|
|
{
|
|
case eStateAttaching:
|
|
case eStateLaunching:
|
|
case eStateRunning:
|
|
case eStateStepping:
|
|
case eStateDetached:
|
|
// NOTE: gdb protocol doc looks like it should return $OK
|
|
// when everything is running (i.e. no stopped result).
|
|
return PacketResult::Success; // Ignore
|
|
|
|
case eStateSuspended:
|
|
case eStateStopped:
|
|
case eStateCrashed:
|
|
{
|
|
lldb::tid_t tid = m_debugged_process_sp->GetCurrentThreadID ();
|
|
// Make sure we set the current thread so g and p packets return
|
|
// the data the gdb will expect.
|
|
SetCurrentThreadID (tid);
|
|
return SendStopReplyPacketForThread (tid);
|
|
}
|
|
|
|
case eStateInvalid:
|
|
case eStateUnloaded:
|
|
case eStateExited:
|
|
if (flush_on_exit)
|
|
FlushInferiorOutput ();
|
|
return SendWResponse(m_debugged_process_sp.get());
|
|
|
|
default:
|
|
if (log)
|
|
{
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 ", current state reporting not handled: %s",
|
|
__FUNCTION__,
|
|
m_debugged_process_sp->GetID (),
|
|
StateAsCString (process_state));
|
|
}
|
|
break;
|
|
}
|
|
|
|
return SendErrorResponse (0);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_Stat (StringExtractorGDBRemote &packet)
|
|
{
|
|
return SendUnimplementedResponse("GDBRemoteCommunicationServer::Handle_vFile_Stat() unimplemented");
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vFile_MD5 (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen("vFile:MD5:"));
|
|
std::string path;
|
|
packet.GetHexByteString(path);
|
|
if (!path.empty())
|
|
{
|
|
uint64_t a,b;
|
|
StreamGDBRemote response;
|
|
if (FileSystem::CalculateMD5(FileSpec(path.c_str(), false), a, b) == false)
|
|
{
|
|
response.PutCString("F,");
|
|
response.PutCString("x");
|
|
}
|
|
else
|
|
{
|
|
response.PutCString("F,");
|
|
response.PutHex64(a);
|
|
response.PutHex64(b);
|
|
}
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
return SendErrorResponse(25);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qRegisterInfo (StringExtractorGDBRemote &packet)
|
|
{
|
|
// Ensure we're llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse("GDBRemoteCommunicationServer::Handle_qRegisterInfo() unimplemented");
|
|
|
|
// Fail if we don't have a current process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
return SendErrorResponse (68);
|
|
|
|
// Ensure we have a thread.
|
|
NativeThreadProtocolSP thread_sp (m_debugged_process_sp->GetThreadAtIndex (0));
|
|
if (!thread_sp)
|
|
return SendErrorResponse (69);
|
|
|
|
// Get the register context for the first thread.
|
|
NativeRegisterContextSP reg_context_sp (thread_sp->GetRegisterContext ());
|
|
if (!reg_context_sp)
|
|
return SendErrorResponse (69);
|
|
|
|
// Parse out the register number from the request.
|
|
packet.SetFilePos (strlen("qRegisterInfo"));
|
|
const uint32_t reg_index = packet.GetHexMaxU32 (false, std::numeric_limits<uint32_t>::max ());
|
|
if (reg_index == std::numeric_limits<uint32_t>::max ())
|
|
return SendErrorResponse (69);
|
|
|
|
// Return the end of registers response if we've iterated one past the end of the register set.
|
|
if (reg_index >= reg_context_sp->GetRegisterCount ())
|
|
return SendErrorResponse (69);
|
|
|
|
const RegisterInfo *reg_info = reg_context_sp->GetRegisterInfoAtIndex(reg_index);
|
|
if (!reg_info)
|
|
return SendErrorResponse (69);
|
|
|
|
// Build the reginfos response.
|
|
StreamGDBRemote response;
|
|
|
|
response.PutCString ("name:");
|
|
response.PutCString (reg_info->name);
|
|
response.PutChar (';');
|
|
|
|
if (reg_info->alt_name && reg_info->alt_name[0])
|
|
{
|
|
response.PutCString ("alt-name:");
|
|
response.PutCString (reg_info->alt_name);
|
|
response.PutChar (';');
|
|
}
|
|
|
|
response.Printf ("bitsize:%" PRIu32 ";offset:%" PRIu32 ";", reg_info->byte_size * 8, reg_info->byte_offset);
|
|
|
|
switch (reg_info->encoding)
|
|
{
|
|
case eEncodingUint: response.PutCString ("encoding:uint;"); break;
|
|
case eEncodingSint: response.PutCString ("encoding:sint;"); break;
|
|
case eEncodingIEEE754: response.PutCString ("encoding:ieee754;"); break;
|
|
case eEncodingVector: response.PutCString ("encoding:vector;"); break;
|
|
default: break;
|
|
}
|
|
|
|
switch (reg_info->format)
|
|
{
|
|
case eFormatBinary: response.PutCString ("format:binary;"); break;
|
|
case eFormatDecimal: response.PutCString ("format:decimal;"); break;
|
|
case eFormatHex: response.PutCString ("format:hex;"); break;
|
|
case eFormatFloat: response.PutCString ("format:float;"); break;
|
|
case eFormatVectorOfSInt8: response.PutCString ("format:vector-sint8;"); break;
|
|
case eFormatVectorOfUInt8: response.PutCString ("format:vector-uint8;"); break;
|
|
case eFormatVectorOfSInt16: response.PutCString ("format:vector-sint16;"); break;
|
|
case eFormatVectorOfUInt16: response.PutCString ("format:vector-uint16;"); break;
|
|
case eFormatVectorOfSInt32: response.PutCString ("format:vector-sint32;"); break;
|
|
case eFormatVectorOfUInt32: response.PutCString ("format:vector-uint32;"); break;
|
|
case eFormatVectorOfFloat32: response.PutCString ("format:vector-float32;"); break;
|
|
case eFormatVectorOfUInt128: response.PutCString ("format:vector-uint128;"); break;
|
|
default: break;
|
|
};
|
|
|
|
const char *const register_set_name = reg_context_sp->GetRegisterSetNameForRegisterAtIndex(reg_index);
|
|
if (register_set_name)
|
|
{
|
|
response.PutCString ("set:");
|
|
response.PutCString (register_set_name);
|
|
response.PutChar (';');
|
|
}
|
|
|
|
if (reg_info->kinds[RegisterKind::eRegisterKindGCC] != LLDB_INVALID_REGNUM)
|
|
response.Printf ("gcc:%" PRIu32 ";", reg_info->kinds[RegisterKind::eRegisterKindGCC]);
|
|
|
|
if (reg_info->kinds[RegisterKind::eRegisterKindDWARF] != LLDB_INVALID_REGNUM)
|
|
response.Printf ("dwarf:%" PRIu32 ";", reg_info->kinds[RegisterKind::eRegisterKindDWARF]);
|
|
|
|
switch (reg_info->kinds[RegisterKind::eRegisterKindGeneric])
|
|
{
|
|
case LLDB_REGNUM_GENERIC_PC: response.PutCString("generic:pc;"); break;
|
|
case LLDB_REGNUM_GENERIC_SP: response.PutCString("generic:sp;"); break;
|
|
case LLDB_REGNUM_GENERIC_FP: response.PutCString("generic:fp;"); break;
|
|
case LLDB_REGNUM_GENERIC_RA: response.PutCString("generic:ra;"); break;
|
|
case LLDB_REGNUM_GENERIC_FLAGS: response.PutCString("generic:flags;"); break;
|
|
case LLDB_REGNUM_GENERIC_ARG1: response.PutCString("generic:arg1;"); break;
|
|
case LLDB_REGNUM_GENERIC_ARG2: response.PutCString("generic:arg2;"); break;
|
|
case LLDB_REGNUM_GENERIC_ARG3: response.PutCString("generic:arg3;"); break;
|
|
case LLDB_REGNUM_GENERIC_ARG4: response.PutCString("generic:arg4;"); break;
|
|
case LLDB_REGNUM_GENERIC_ARG5: response.PutCString("generic:arg5;"); break;
|
|
case LLDB_REGNUM_GENERIC_ARG6: response.PutCString("generic:arg6;"); break;
|
|
case LLDB_REGNUM_GENERIC_ARG7: response.PutCString("generic:arg7;"); break;
|
|
case LLDB_REGNUM_GENERIC_ARG8: response.PutCString("generic:arg8;"); break;
|
|
default: break;
|
|
}
|
|
|
|
if (reg_info->value_regs && reg_info->value_regs[0] != LLDB_INVALID_REGNUM)
|
|
{
|
|
response.PutCString ("container-regs:");
|
|
int i = 0;
|
|
for (const uint32_t *reg_num = reg_info->value_regs; *reg_num != LLDB_INVALID_REGNUM; ++reg_num, ++i)
|
|
{
|
|
if (i > 0)
|
|
response.PutChar (',');
|
|
response.Printf ("%" PRIx32, *reg_num);
|
|
}
|
|
response.PutChar (';');
|
|
}
|
|
|
|
if (reg_info->invalidate_regs && reg_info->invalidate_regs[0])
|
|
{
|
|
response.PutCString ("invalidate-regs:");
|
|
int i = 0;
|
|
for (const uint32_t *reg_num = reg_info->invalidate_regs; *reg_num != LLDB_INVALID_REGNUM; ++reg_num, ++i)
|
|
{
|
|
if (i > 0)
|
|
response.PutChar (',');
|
|
response.Printf ("%" PRIx32, *reg_num);
|
|
}
|
|
response.PutChar (';');
|
|
}
|
|
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qfThreadInfo (StringExtractorGDBRemote &packet)
|
|
{
|
|
// Ensure we're llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse("GDBRemoteCommunicationServer::Handle_qfThreadInfo() unimplemented");
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
|
|
|
|
// Fail if we don't have a current process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s() no process (%s), returning OK", __FUNCTION__, m_debugged_process_sp ? "invalid process id" : "null m_debugged_process_sp");
|
|
return SendOKResponse ();
|
|
}
|
|
|
|
StreamGDBRemote response;
|
|
response.PutChar ('m');
|
|
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s() starting thread iteration", __FUNCTION__);
|
|
|
|
NativeThreadProtocolSP thread_sp;
|
|
uint32_t thread_index;
|
|
for (thread_index = 0, thread_sp = m_debugged_process_sp->GetThreadAtIndex (thread_index);
|
|
thread_sp;
|
|
++thread_index, thread_sp = m_debugged_process_sp->GetThreadAtIndex (thread_index))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s() iterated thread %" PRIu32 "(%s, tid=0x%" PRIx64 ")", __FUNCTION__, thread_index, thread_sp ? "is not null" : "null", thread_sp ? thread_sp->GetID () : LLDB_INVALID_THREAD_ID);
|
|
if (thread_index > 0)
|
|
response.PutChar(',');
|
|
response.Printf ("%" PRIx64, thread_sp->GetID ());
|
|
}
|
|
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s() finished thread iteration", __FUNCTION__);
|
|
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qsThreadInfo (StringExtractorGDBRemote &packet)
|
|
{
|
|
// Ensure we're llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("GDBRemoteCommunicationServer::Handle_qsThreadInfo() unimplemented");
|
|
|
|
// FIXME for now we return the full thread list in the initial packet and always do nothing here.
|
|
return SendPacketNoLock ("l", 1);
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_p (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
|
|
|
|
// Ensure we're llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("GDBRemoteCommunicationServer::Handle_p() unimplemented");
|
|
|
|
// Parse out the register number from the request.
|
|
packet.SetFilePos (strlen("p"));
|
|
const uint32_t reg_index = packet.GetHexMaxU32 (false, std::numeric_limits<uint32_t>::max ());
|
|
if (reg_index == std::numeric_limits<uint32_t>::max ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, could not parse register number from request \"%s\"", __FUNCTION__, packet.GetStringRef ().c_str ());
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Get the thread to use.
|
|
NativeThreadProtocolSP thread_sp = GetThreadFromSuffix (packet);
|
|
if (!thread_sp)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no thread available", __FUNCTION__);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Get the thread's register context.
|
|
NativeRegisterContextSP reg_context_sp (thread_sp->GetRegisterContext ());
|
|
if (!reg_context_sp)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " tid %" PRIu64 " failed, no register context available for the thread", __FUNCTION__, m_debugged_process_sp->GetID (), thread_sp->GetID ());
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Return the end of registers response if we've iterated one past the end of the register set.
|
|
if (reg_index >= reg_context_sp->GetRegisterCount ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, requested register %" PRIu32 " beyond register count %" PRIu32, __FUNCTION__, reg_index, reg_context_sp->GetRegisterCount ());
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
const RegisterInfo *reg_info = reg_context_sp->GetRegisterInfoAtIndex(reg_index);
|
|
if (!reg_info)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, requested register %" PRIu32 " returned NULL", __FUNCTION__, reg_index);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Build the reginfos response.
|
|
StreamGDBRemote response;
|
|
|
|
// Retrieve the value
|
|
RegisterValue reg_value;
|
|
Error error = reg_context_sp->ReadRegister (reg_info, reg_value);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, read of requested register %" PRIu32 " (%s) failed: %s", __FUNCTION__, reg_index, reg_info->name, error.AsCString ());
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
const uint8_t *const data = reinterpret_cast<const uint8_t*> (reg_value.GetBytes ());
|
|
if (!data)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed to get data bytes from requested register %" PRIu32, __FUNCTION__, reg_index);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// FIXME flip as needed to get data in big/little endian format for this host.
|
|
for (uint32_t i = 0; i < reg_value.GetByteSize (); ++i)
|
|
response.PutHex8 (data[i]);
|
|
|
|
return SendPacketNoLock (response.GetData (), response.GetSize ());
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_P (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
|
|
|
|
// Ensure we're llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("GDBRemoteCommunicationServer::Handle_P() unimplemented");
|
|
|
|
// Ensure there is more content.
|
|
if (packet.GetBytesLeft () < 1)
|
|
return SendIllFormedResponse (packet, "Empty P packet");
|
|
|
|
// Parse out the register number from the request.
|
|
packet.SetFilePos (strlen("P"));
|
|
const uint32_t reg_index = packet.GetHexMaxU32 (false, std::numeric_limits<uint32_t>::max ());
|
|
if (reg_index == std::numeric_limits<uint32_t>::max ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, could not parse register number from request \"%s\"", __FUNCTION__, packet.GetStringRef ().c_str ());
|
|
return SendErrorResponse (0x29);
|
|
}
|
|
|
|
// Note debugserver would send an E30 here.
|
|
if ((packet.GetBytesLeft () < 1) || (packet.GetChar () != '='))
|
|
return SendIllFormedResponse (packet, "P packet missing '=' char after register number");
|
|
|
|
// Get process architecture.
|
|
ArchSpec process_arch;
|
|
if (!m_debugged_process_sp || !m_debugged_process_sp->GetArchitecture (process_arch))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed to retrieve inferior architecture", __FUNCTION__);
|
|
return SendErrorResponse (0x49);
|
|
}
|
|
|
|
// Parse out the value.
|
|
const uint64_t raw_value = packet.GetHexMaxU64 (process_arch.GetByteOrder () == lldb::eByteOrderLittle, std::numeric_limits<uint64_t>::max ());
|
|
|
|
// Get the thread to use.
|
|
NativeThreadProtocolSP thread_sp = GetThreadFromSuffix (packet);
|
|
if (!thread_sp)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no thread available (thread index 0)", __FUNCTION__);
|
|
return SendErrorResponse (0x28);
|
|
}
|
|
|
|
// Get the thread's register context.
|
|
NativeRegisterContextSP reg_context_sp (thread_sp->GetRegisterContext ());
|
|
if (!reg_context_sp)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " tid %" PRIu64 " failed, no register context available for the thread", __FUNCTION__, m_debugged_process_sp->GetID (), thread_sp->GetID ());
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
const RegisterInfo *reg_info = reg_context_sp->GetRegisterInfoAtIndex(reg_index);
|
|
if (!reg_info)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, requested register %" PRIu32 " returned NULL", __FUNCTION__, reg_index);
|
|
return SendErrorResponse (0x48);
|
|
}
|
|
|
|
// Return the end of registers response if we've iterated one past the end of the register set.
|
|
if (reg_index >= reg_context_sp->GetRegisterCount ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, requested register %" PRIu32 " beyond register count %" PRIu32, __FUNCTION__, reg_index, reg_context_sp->GetRegisterCount ());
|
|
return SendErrorResponse (0x47);
|
|
}
|
|
|
|
|
|
// Build the reginfos response.
|
|
StreamGDBRemote response;
|
|
|
|
// FIXME Could be suffixed with a thread: parameter.
|
|
// That thread then needs to be fed back into the reg context retrieval above.
|
|
Error error = reg_context_sp->WriteRegisterFromUnsigned (reg_info, raw_value);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, write of requested register %" PRIu32 " (%s) failed: %s", __FUNCTION__, reg_index, reg_info->name, error.AsCString ());
|
|
return SendErrorResponse (0x32);
|
|
}
|
|
|
|
return SendOKResponse();
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_H (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
|
|
|
|
// Ensure we're llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse("GDBRemoteCommunicationServer::Handle_H() unimplemented");
|
|
|
|
// Fail if we don't have a current process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no process available", __FUNCTION__);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Parse out which variant of $H is requested.
|
|
packet.SetFilePos (strlen("H"));
|
|
if (packet.GetBytesLeft () < 1)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, H command missing {g,c} variant", __FUNCTION__);
|
|
return SendIllFormedResponse (packet, "H command missing {g,c} variant");
|
|
}
|
|
|
|
const char h_variant = packet.GetChar ();
|
|
switch (h_variant)
|
|
{
|
|
case 'g':
|
|
break;
|
|
|
|
case 'c':
|
|
break;
|
|
|
|
default:
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, invalid $H variant %c", __FUNCTION__, h_variant);
|
|
return SendIllFormedResponse (packet, "H variant unsupported, should be c or g");
|
|
}
|
|
|
|
// Parse out the thread number.
|
|
// FIXME return a parse success/fail value. All values are valid here.
|
|
const lldb::tid_t tid = packet.GetHexMaxU64 (false, std::numeric_limits<lldb::tid_t>::max ());
|
|
|
|
// Ensure we have the given thread when not specifying -1 (all threads) or 0 (any thread).
|
|
if (tid != LLDB_INVALID_THREAD_ID && tid != 0)
|
|
{
|
|
NativeThreadProtocolSP thread_sp (m_debugged_process_sp->GetThreadByID (tid));
|
|
if (!thread_sp)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, tid %" PRIu64 " not found", __FUNCTION__, tid);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
}
|
|
|
|
// Now switch the given thread type.
|
|
switch (h_variant)
|
|
{
|
|
case 'g':
|
|
SetCurrentThreadID (tid);
|
|
break;
|
|
|
|
case 'c':
|
|
SetContinueThreadID (tid);
|
|
break;
|
|
|
|
default:
|
|
assert (false && "unsupported $H variant - shouldn't get here");
|
|
return SendIllFormedResponse (packet, "H variant unsupported, should be c or g");
|
|
}
|
|
|
|
return SendOKResponse();
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_interrupt (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
|
|
|
|
// Ensure we're llgs.
|
|
if (!IsGdbServer())
|
|
{
|
|
// Only supported on llgs
|
|
return SendUnimplementedResponse ("");
|
|
}
|
|
|
|
// Fail if we don't have a current process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no process available", __FUNCTION__);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Build the ResumeActionList - stop everything.
|
|
lldb_private::ResumeActionList actions (StateType::eStateStopped, 0);
|
|
|
|
Error error = m_debugged_process_sp->Resume (actions);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
{
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed for process %" PRIu64 ": %s",
|
|
__FUNCTION__,
|
|
m_debugged_process_sp->GetID (),
|
|
error.AsCString ());
|
|
}
|
|
return SendErrorResponse (GDBRemoteServerError::eErrorResume);
|
|
}
|
|
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s stopped process %" PRIu64, __FUNCTION__, m_debugged_process_sp->GetID ());
|
|
|
|
// No response required from stop all.
|
|
return PacketResult::Success;
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_m (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
|
|
// Ensure we're llgs.
|
|
if (!IsGdbServer())
|
|
{
|
|
// Only supported on llgs
|
|
return SendUnimplementedResponse ("");
|
|
}
|
|
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no process available", __FUNCTION__);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Parse out the memory address.
|
|
packet.SetFilePos (strlen("m"));
|
|
if (packet.GetBytesLeft() < 1)
|
|
return SendIllFormedResponse(packet, "Too short m packet");
|
|
|
|
// Read the address. Punting on validation.
|
|
// FIXME replace with Hex U64 read with no default value that fails on failed read.
|
|
const lldb::addr_t read_addr = packet.GetHexMaxU64(false, 0);
|
|
|
|
// Validate comma.
|
|
if ((packet.GetBytesLeft() < 1) || (packet.GetChar() != ','))
|
|
return SendIllFormedResponse(packet, "Comma sep missing in m packet");
|
|
|
|
// Get # bytes to read.
|
|
if (packet.GetBytesLeft() < 1)
|
|
return SendIllFormedResponse(packet, "Length missing in m packet");
|
|
|
|
const uint64_t byte_count = packet.GetHexMaxU64(false, 0);
|
|
if (byte_count == 0)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s nothing to read: zero-length packet", __FUNCTION__);
|
|
return PacketResult::Success;
|
|
}
|
|
|
|
// Allocate the response buffer.
|
|
std::string buf(byte_count, '\0');
|
|
if (buf.empty())
|
|
return SendErrorResponse (0x78);
|
|
|
|
|
|
// Retrieve the process memory.
|
|
lldb::addr_t bytes_read = 0;
|
|
lldb_private::Error error = m_debugged_process_sp->ReadMemory (read_addr, &buf[0], byte_count, bytes_read);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " mem 0x%" PRIx64 ": failed to read. Error: %s", __FUNCTION__, m_debugged_process_sp->GetID (), read_addr, error.AsCString ());
|
|
return SendErrorResponse (0x08);
|
|
}
|
|
|
|
if (bytes_read == 0)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " mem 0x%" PRIx64 ": read %" PRIu64 " of %" PRIu64 " requested bytes", __FUNCTION__, m_debugged_process_sp->GetID (), read_addr, bytes_read, byte_count);
|
|
return SendErrorResponse (0x08);
|
|
}
|
|
|
|
StreamGDBRemote response;
|
|
for (lldb::addr_t i = 0; i < bytes_read; ++i)
|
|
response.PutHex8(buf[i]);
|
|
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QSetDetachOnError (StringExtractorGDBRemote &packet)
|
|
{
|
|
packet.SetFilePos(::strlen ("QSetDetachOnError:"));
|
|
if (packet.GetU32(0))
|
|
m_process_launch_info.GetFlags().Set (eLaunchFlagDetachOnError);
|
|
else
|
|
m_process_launch_info.GetFlags().Clear (eLaunchFlagDetachOnError);
|
|
return SendOKResponse ();
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_M (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
|
|
// Ensure we're llgs.
|
|
if (!IsGdbServer())
|
|
{
|
|
// Only supported on llgs
|
|
return SendUnimplementedResponse ("");
|
|
}
|
|
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no process available", __FUNCTION__);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Parse out the memory address.
|
|
packet.SetFilePos (strlen("M"));
|
|
if (packet.GetBytesLeft() < 1)
|
|
return SendIllFormedResponse(packet, "Too short M packet");
|
|
|
|
// Read the address. Punting on validation.
|
|
// FIXME replace with Hex U64 read with no default value that fails on failed read.
|
|
const lldb::addr_t write_addr = packet.GetHexMaxU64(false, 0);
|
|
|
|
// Validate comma.
|
|
if ((packet.GetBytesLeft() < 1) || (packet.GetChar() != ','))
|
|
return SendIllFormedResponse(packet, "Comma sep missing in M packet");
|
|
|
|
// Get # bytes to read.
|
|
if (packet.GetBytesLeft() < 1)
|
|
return SendIllFormedResponse(packet, "Length missing in M packet");
|
|
|
|
const uint64_t byte_count = packet.GetHexMaxU64(false, 0);
|
|
if (byte_count == 0)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s nothing to write: zero-length packet", __FUNCTION__);
|
|
return PacketResult::Success;
|
|
}
|
|
|
|
// Validate colon.
|
|
if ((packet.GetBytesLeft() < 1) || (packet.GetChar() != ':'))
|
|
return SendIllFormedResponse(packet, "Comma sep missing in M packet after byte length");
|
|
|
|
// Allocate the conversion buffer.
|
|
std::vector<uint8_t> buf(byte_count, 0);
|
|
if (buf.empty())
|
|
return SendErrorResponse (0x78);
|
|
|
|
// Convert the hex memory write contents to bytes.
|
|
StreamGDBRemote response;
|
|
const uint64_t convert_count = static_cast<uint64_t> (packet.GetHexBytes (&buf[0], byte_count, 0));
|
|
if (convert_count != byte_count)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " mem 0x%" PRIx64 ": asked to write %" PRIu64 " bytes, but only found %" PRIu64 " to convert.", __FUNCTION__, m_debugged_process_sp->GetID (), write_addr, byte_count, convert_count);
|
|
return SendIllFormedResponse (packet, "M content byte length specified did not match hex-encoded content length");
|
|
}
|
|
|
|
// Write the process memory.
|
|
lldb::addr_t bytes_written = 0;
|
|
lldb_private::Error error = m_debugged_process_sp->WriteMemory (write_addr, &buf[0], byte_count, bytes_written);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " mem 0x%" PRIx64 ": failed to write. Error: %s", __FUNCTION__, m_debugged_process_sp->GetID (), write_addr, error.AsCString ());
|
|
return SendErrorResponse (0x09);
|
|
}
|
|
|
|
if (bytes_written == 0)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " mem 0x%" PRIx64 ": wrote %" PRIu64 " of %" PRIu64 " requested bytes", __FUNCTION__, m_debugged_process_sp->GetID (), write_addr, bytes_written, byte_count);
|
|
return SendErrorResponse (0x09);
|
|
}
|
|
|
|
return SendOKResponse ();
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qMemoryRegionInfoSupported (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
|
|
// We don't support if we're not llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("");
|
|
|
|
// Currently only the NativeProcessProtocol knows if it can handle a qMemoryRegionInfoSupported
|
|
// request, but we're not guaranteed to be attached to a process. For now we'll assume the
|
|
// client only asks this when a process is being debugged.
|
|
|
|
// Ensure we have a process running; otherwise, we can't figure this out
|
|
// since we won't have a NativeProcessProtocol.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no process available", __FUNCTION__);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Test if we can get any region back when asking for the region around NULL.
|
|
MemoryRegionInfo region_info;
|
|
const Error error = m_debugged_process_sp->GetMemoryRegionInfo (0, region_info);
|
|
if (error.Fail ())
|
|
{
|
|
// We don't support memory region info collection for this NativeProcessProtocol.
|
|
return SendUnimplementedResponse ("");
|
|
}
|
|
|
|
return SendOKResponse();
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qMemoryRegionInfo (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
|
|
// We don't support if we're not llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("");
|
|
|
|
// Ensure we have a process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no process available", __FUNCTION__);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Parse out the memory address.
|
|
packet.SetFilePos (strlen("qMemoryRegionInfo:"));
|
|
if (packet.GetBytesLeft() < 1)
|
|
return SendIllFormedResponse(packet, "Too short qMemoryRegionInfo: packet");
|
|
|
|
// Read the address. Punting on validation.
|
|
const lldb::addr_t read_addr = packet.GetHexMaxU64(false, 0);
|
|
|
|
StreamGDBRemote response;
|
|
|
|
// Get the memory region info for the target address.
|
|
MemoryRegionInfo region_info;
|
|
const Error error = m_debugged_process_sp->GetMemoryRegionInfo (read_addr, region_info);
|
|
if (error.Fail ())
|
|
{
|
|
// Return the error message.
|
|
|
|
response.PutCString ("error:");
|
|
response.PutCStringAsRawHex8 (error.AsCString ());
|
|
response.PutChar (';');
|
|
}
|
|
else
|
|
{
|
|
// Range start and size.
|
|
response.Printf ("start:%" PRIx64 ";size:%" PRIx64 ";", region_info.GetRange ().GetRangeBase (), region_info.GetRange ().GetByteSize ());
|
|
|
|
// Permissions.
|
|
if (region_info.GetReadable () ||
|
|
region_info.GetWritable () ||
|
|
region_info.GetExecutable ())
|
|
{
|
|
// Write permissions info.
|
|
response.PutCString ("permissions:");
|
|
|
|
if (region_info.GetReadable ())
|
|
response.PutChar ('r');
|
|
if (region_info.GetWritable ())
|
|
response.PutChar('w');
|
|
if (region_info.GetExecutable())
|
|
response.PutChar ('x');
|
|
|
|
response.PutChar (';');
|
|
}
|
|
}
|
|
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_Z (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
|
|
|
|
// We don't support if we're not llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("");
|
|
|
|
// Ensure we have a process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no process available", __FUNCTION__);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Parse out software or hardware breakpoint requested.
|
|
packet.SetFilePos (strlen("Z"));
|
|
if (packet.GetBytesLeft() < 1)
|
|
return SendIllFormedResponse(packet, "Too short Z packet, missing software/hardware specifier");
|
|
|
|
bool want_breakpoint = true;
|
|
bool want_hardware = false;
|
|
|
|
const char breakpoint_type_char = packet.GetChar ();
|
|
switch (breakpoint_type_char)
|
|
{
|
|
case '0': want_hardware = false; want_breakpoint = true; break;
|
|
case '1': want_hardware = true; want_breakpoint = true; break;
|
|
case '2': want_breakpoint = false; break;
|
|
case '3': want_breakpoint = false; break;
|
|
default:
|
|
return SendIllFormedResponse(packet, "Z packet had invalid software/hardware specifier");
|
|
|
|
}
|
|
|
|
if ((packet.GetBytesLeft() < 1) || packet.GetChar () != ',')
|
|
return SendIllFormedResponse(packet, "Malformed Z packet, expecting comma after breakpoint type");
|
|
|
|
// FIXME implement watchpoint support.
|
|
if (!want_breakpoint)
|
|
return SendUnimplementedResponse ("watchpoint support not yet implemented");
|
|
|
|
// Parse out the breakpoint address.
|
|
if (packet.GetBytesLeft() < 1)
|
|
return SendIllFormedResponse(packet, "Too short Z packet, missing address");
|
|
const lldb::addr_t breakpoint_addr = packet.GetHexMaxU64(false, 0);
|
|
|
|
if ((packet.GetBytesLeft() < 1) || packet.GetChar () != ',')
|
|
return SendIllFormedResponse(packet, "Malformed Z packet, expecting comma after address");
|
|
|
|
// Parse out the breakpoint kind (i.e. size hint for opcode size).
|
|
const uint32_t kind = packet.GetHexMaxU32 (false, std::numeric_limits<uint32_t>::max ());
|
|
if (kind == std::numeric_limits<uint32_t>::max ())
|
|
return SendIllFormedResponse(packet, "Malformed Z packet, failed to parse kind argument");
|
|
|
|
if (want_breakpoint)
|
|
{
|
|
// Try to set the breakpoint.
|
|
const Error error = m_debugged_process_sp->SetBreakpoint (breakpoint_addr, kind, want_hardware);
|
|
if (error.Success ())
|
|
return SendOKResponse ();
|
|
else
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " failed to set breakpoint: %s", __FUNCTION__, m_debugged_process_sp->GetID (), error.AsCString ());
|
|
return SendErrorResponse (0x09);
|
|
}
|
|
}
|
|
|
|
// FIXME fix up after watchpoints are handled.
|
|
return SendUnimplementedResponse ("");
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_z (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
|
|
|
|
// We don't support if we're not llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("");
|
|
|
|
// Ensure we have a process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no process available", __FUNCTION__);
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Parse out software or hardware breakpoint requested.
|
|
packet.SetFilePos (strlen("Z"));
|
|
if (packet.GetBytesLeft() < 1)
|
|
return SendIllFormedResponse(packet, "Too short z packet, missing software/hardware specifier");
|
|
|
|
bool want_breakpoint = true;
|
|
|
|
const char breakpoint_type_char = packet.GetChar ();
|
|
switch (breakpoint_type_char)
|
|
{
|
|
case '0': want_breakpoint = true; break;
|
|
case '1': want_breakpoint = true; break;
|
|
case '2': want_breakpoint = false; break;
|
|
case '3': want_breakpoint = false; break;
|
|
default:
|
|
return SendIllFormedResponse(packet, "z packet had invalid software/hardware specifier");
|
|
|
|
}
|
|
|
|
if ((packet.GetBytesLeft() < 1) || packet.GetChar () != ',')
|
|
return SendIllFormedResponse(packet, "Malformed z packet, expecting comma after breakpoint type");
|
|
|
|
// FIXME implement watchpoint support.
|
|
if (!want_breakpoint)
|
|
return SendUnimplementedResponse ("watchpoint support not yet implemented");
|
|
|
|
// Parse out the breakpoint address.
|
|
if (packet.GetBytesLeft() < 1)
|
|
return SendIllFormedResponse(packet, "Too short z packet, missing address");
|
|
const lldb::addr_t breakpoint_addr = packet.GetHexMaxU64(false, 0);
|
|
|
|
if ((packet.GetBytesLeft() < 1) || packet.GetChar () != ',')
|
|
return SendIllFormedResponse(packet, "Malformed z packet, expecting comma after address");
|
|
|
|
// Parse out the breakpoint kind (i.e. size hint for opcode size).
|
|
const uint32_t kind = packet.GetHexMaxU32 (false, std::numeric_limits<uint32_t>::max ());
|
|
if (kind == std::numeric_limits<uint32_t>::max ())
|
|
return SendIllFormedResponse(packet, "Malformed z packet, failed to parse kind argument");
|
|
|
|
if (want_breakpoint)
|
|
{
|
|
// Try to set the breakpoint.
|
|
const Error error = m_debugged_process_sp->RemoveBreakpoint (breakpoint_addr);
|
|
if (error.Success ())
|
|
return SendOKResponse ();
|
|
else
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " failed to remove breakpoint: %s", __FUNCTION__, m_debugged_process_sp->GetID (), error.AsCString ());
|
|
return SendErrorResponse (0x09);
|
|
}
|
|
}
|
|
|
|
// FIXME fix up after watchpoints are handled.
|
|
return SendUnimplementedResponse ("");
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_s (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS|LIBLLDB_LOG_THREAD));
|
|
|
|
// We don't support if we're not llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("");
|
|
|
|
// Ensure we have a process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no process available", __FUNCTION__);
|
|
return SendErrorResponse (0x32);
|
|
}
|
|
|
|
// We first try to use a continue thread id. If any one or any all set, use the current thread.
|
|
// Bail out if we don't have a thread id.
|
|
lldb::tid_t tid = GetContinueThreadID ();
|
|
if (tid == 0 || tid == LLDB_INVALID_THREAD_ID)
|
|
tid = GetCurrentThreadID ();
|
|
if (tid == LLDB_INVALID_THREAD_ID)
|
|
return SendErrorResponse (0x33);
|
|
|
|
// Double check that we have such a thread.
|
|
// TODO investigate: on MacOSX we might need to do an UpdateThreads () here.
|
|
NativeThreadProtocolSP thread_sp = m_debugged_process_sp->GetThreadByID (tid);
|
|
if (!thread_sp || thread_sp->GetID () != tid)
|
|
return SendErrorResponse (0x33);
|
|
|
|
// Create the step action for the given thread.
|
|
lldb_private::ResumeAction action = { tid, eStateStepping, 0 };
|
|
|
|
// Setup the actions list.
|
|
lldb_private::ResumeActionList actions;
|
|
actions.Append (action);
|
|
|
|
// All other threads stop while we're single stepping a thread.
|
|
actions.SetDefaultThreadActionIfNeeded(eStateStopped, 0);
|
|
Error error = m_debugged_process_sp->Resume (actions);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " tid %" PRIu64 " Resume() failed with error: %s", __FUNCTION__, m_debugged_process_sp->GetID (), tid, error.AsCString ());
|
|
return SendErrorResponse(0x49);
|
|
}
|
|
|
|
// No response here - the stop or exit will come from the resulting action.
|
|
return PacketResult::Success;
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qSupported (StringExtractorGDBRemote &packet)
|
|
{
|
|
StreamGDBRemote response;
|
|
|
|
// Features common to lldb-platform and llgs.
|
|
uint32_t max_packet_size = 128 * 1024; // 128KBytes is a reasonable max packet size--debugger can always use less
|
|
response.Printf ("PacketSize=%x", max_packet_size);
|
|
|
|
response.PutCString (";QStartNoAckMode+");
|
|
response.PutCString (";QThreadSuffixSupported+");
|
|
response.PutCString (";QListThreadsInStopReply+");
|
|
#if defined(__linux__)
|
|
response.PutCString (";qXfer:auxv:read+");
|
|
#endif
|
|
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QThreadSuffixSupported (StringExtractorGDBRemote &packet)
|
|
{
|
|
m_thread_suffix_supported = true;
|
|
return SendOKResponse();
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QListThreadsInStopReply (StringExtractorGDBRemote &packet)
|
|
{
|
|
m_list_threads_in_stop_reply = true;
|
|
return SendOKResponse();
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_qXfer_auxv_read (StringExtractorGDBRemote &packet)
|
|
{
|
|
// We don't support if we're not llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("only supported for lldb-gdbserver");
|
|
|
|
// *BSD impls should be able to do this too.
|
|
#if defined(__linux__)
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
|
|
// Parse out the offset.
|
|
packet.SetFilePos (strlen("qXfer:auxv:read::"));
|
|
if (packet.GetBytesLeft () < 1)
|
|
return SendIllFormedResponse (packet, "qXfer:auxv:read:: packet missing offset");
|
|
|
|
const uint64_t auxv_offset = packet.GetHexMaxU64 (false, std::numeric_limits<uint64_t>::max ());
|
|
if (auxv_offset == std::numeric_limits<uint64_t>::max ())
|
|
return SendIllFormedResponse (packet, "qXfer:auxv:read:: packet missing offset");
|
|
|
|
// Parse out comma.
|
|
if (packet.GetBytesLeft () < 1 || packet.GetChar () != ',')
|
|
return SendIllFormedResponse (packet, "qXfer:auxv:read:: packet missing comma after offset");
|
|
|
|
// Parse out the length.
|
|
const uint64_t auxv_length = packet.GetHexMaxU64 (false, std::numeric_limits<uint64_t>::max ());
|
|
if (auxv_length == std::numeric_limits<uint64_t>::max ())
|
|
return SendIllFormedResponse (packet, "qXfer:auxv:read:: packet missing length");
|
|
|
|
// Grab the auxv data if we need it.
|
|
if (!m_active_auxv_buffer_sp)
|
|
{
|
|
// Make sure we have a valid process.
|
|
if (!m_debugged_process_sp || (m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID))
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no process available", __FUNCTION__);
|
|
return SendErrorResponse (0x10);
|
|
}
|
|
|
|
// Grab the auxv data.
|
|
m_active_auxv_buffer_sp = Host::GetAuxvData (m_debugged_process_sp->GetID ());
|
|
if (!m_active_auxv_buffer_sp || m_active_auxv_buffer_sp->GetByteSize () == 0)
|
|
{
|
|
// Hmm, no auxv data, call that an error.
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed, no auxv data retrieved", __FUNCTION__);
|
|
m_active_auxv_buffer_sp.reset ();
|
|
return SendErrorResponse (0x11);
|
|
}
|
|
}
|
|
|
|
// FIXME find out if/how I lock the stream here.
|
|
|
|
StreamGDBRemote response;
|
|
bool done_with_buffer = false;
|
|
|
|
if (auxv_offset >= m_active_auxv_buffer_sp->GetByteSize ())
|
|
{
|
|
// We have nothing left to send. Mark the buffer as complete.
|
|
response.PutChar ('l');
|
|
done_with_buffer = true;
|
|
}
|
|
else
|
|
{
|
|
// Figure out how many bytes are available starting at the given offset.
|
|
const uint64_t bytes_remaining = m_active_auxv_buffer_sp->GetByteSize () - auxv_offset;
|
|
|
|
// Figure out how many bytes we're going to read.
|
|
const uint64_t bytes_to_read = (auxv_length > bytes_remaining) ? bytes_remaining : auxv_length;
|
|
|
|
// Mark the response type according to whether we're reading the remainder of the auxv data.
|
|
if (bytes_to_read >= bytes_remaining)
|
|
{
|
|
// There will be nothing left to read after this
|
|
response.PutChar ('l');
|
|
done_with_buffer = true;
|
|
}
|
|
else
|
|
{
|
|
// There will still be bytes to read after this request.
|
|
response.PutChar ('m');
|
|
}
|
|
|
|
// Now write the data in encoded binary form.
|
|
response.PutEscapedBytes (m_active_auxv_buffer_sp->GetBytes () + auxv_offset, bytes_to_read);
|
|
}
|
|
|
|
if (done_with_buffer)
|
|
m_active_auxv_buffer_sp.reset ();
|
|
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
#else
|
|
return SendUnimplementedResponse ("not implemented on this platform");
|
|
#endif
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QSaveRegisterState (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
|
|
|
|
// We don't support if we're not llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("only supported for lldb-gdbserver");
|
|
|
|
// Move past packet name.
|
|
packet.SetFilePos (strlen ("QSaveRegisterState"));
|
|
|
|
// Get the thread to use.
|
|
NativeThreadProtocolSP thread_sp = GetThreadFromSuffix (packet);
|
|
if (!thread_sp)
|
|
{
|
|
if (m_thread_suffix_supported)
|
|
return SendIllFormedResponse (packet, "No thread specified in QSaveRegisterState packet");
|
|
else
|
|
return SendIllFormedResponse (packet, "No thread was is set with the Hg packet");
|
|
}
|
|
|
|
// Grab the register context for the thread.
|
|
NativeRegisterContextSP reg_context_sp (thread_sp->GetRegisterContext ());
|
|
if (!reg_context_sp)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " tid %" PRIu64 " failed, no register context available for the thread", __FUNCTION__, m_debugged_process_sp->GetID (), thread_sp->GetID ());
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Save registers to a buffer.
|
|
DataBufferSP register_data_sp;
|
|
Error error = reg_context_sp->ReadAllRegisterValues (register_data_sp);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " failed to save all register values: %s", __FUNCTION__, m_debugged_process_sp->GetID (), error.AsCString ());
|
|
return SendErrorResponse (0x75);
|
|
}
|
|
|
|
// Allocate a new save id.
|
|
const uint32_t save_id = GetNextSavedRegistersID ();
|
|
assert ((m_saved_registers_map.find (save_id) == m_saved_registers_map.end ()) && "GetNextRegisterSaveID() returned an existing register save id");
|
|
|
|
// Save the register data buffer under the save id.
|
|
{
|
|
Mutex::Locker locker (m_saved_registers_mutex);
|
|
m_saved_registers_map[save_id] = register_data_sp;
|
|
}
|
|
|
|
// Write the response.
|
|
StreamGDBRemote response;
|
|
response.Printf ("%" PRIu32, save_id);
|
|
return SendPacketNoLock(response.GetData(), response.GetSize());
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_QRestoreRegisterState (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
|
|
|
|
// We don't support if we're not llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("only supported for lldb-gdbserver");
|
|
|
|
// Parse out save id.
|
|
packet.SetFilePos (strlen ("QRestoreRegisterState:"));
|
|
if (packet.GetBytesLeft () < 1)
|
|
return SendIllFormedResponse (packet, "QRestoreRegisterState packet missing register save id");
|
|
|
|
const uint32_t save_id = packet.GetU32 (0);
|
|
if (save_id == 0)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s QRestoreRegisterState packet has malformed save id, expecting decimal uint32_t", __FUNCTION__);
|
|
return SendErrorResponse (0x76);
|
|
}
|
|
|
|
// Get the thread to use.
|
|
NativeThreadProtocolSP thread_sp = GetThreadFromSuffix (packet);
|
|
if (!thread_sp)
|
|
{
|
|
if (m_thread_suffix_supported)
|
|
return SendIllFormedResponse (packet, "No thread specified in QRestoreRegisterState packet");
|
|
else
|
|
return SendIllFormedResponse (packet, "No thread was is set with the Hg packet");
|
|
}
|
|
|
|
// Grab the register context for the thread.
|
|
NativeRegisterContextSP reg_context_sp (thread_sp->GetRegisterContext ());
|
|
if (!reg_context_sp)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " tid %" PRIu64 " failed, no register context available for the thread", __FUNCTION__, m_debugged_process_sp->GetID (), thread_sp->GetID ());
|
|
return SendErrorResponse (0x15);
|
|
}
|
|
|
|
// Retrieve register state buffer, then remove from the list.
|
|
DataBufferSP register_data_sp;
|
|
{
|
|
Mutex::Locker locker (m_saved_registers_mutex);
|
|
|
|
// Find the register set buffer for the given save id.
|
|
auto it = m_saved_registers_map.find (save_id);
|
|
if (it == m_saved_registers_map.end ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " does not have a register set save buffer for id %" PRIu32, __FUNCTION__, m_debugged_process_sp->GetID (), save_id);
|
|
return SendErrorResponse (0x77);
|
|
}
|
|
register_data_sp = it->second;
|
|
|
|
// Remove it from the map.
|
|
m_saved_registers_map.erase (it);
|
|
}
|
|
|
|
Error error = reg_context_sp->WriteAllRegisterValues (register_data_sp);
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s pid %" PRIu64 " failed to restore all register values: %s", __FUNCTION__, m_debugged_process_sp->GetID (), error.AsCString ());
|
|
return SendErrorResponse (0x77);
|
|
}
|
|
|
|
return SendOKResponse();
|
|
}
|
|
|
|
GDBRemoteCommunicationServer::PacketResult
|
|
GDBRemoteCommunicationServer::Handle_vAttach (StringExtractorGDBRemote &packet)
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
|
|
// We don't support if we're not llgs.
|
|
if (!IsGdbServer())
|
|
return SendUnimplementedResponse ("only supported for lldb-gdbserver");
|
|
|
|
// Consume the ';' after vAttach.
|
|
packet.SetFilePos (strlen ("vAttach"));
|
|
if (!packet.GetBytesLeft () || packet.GetChar () != ';')
|
|
return SendIllFormedResponse (packet, "vAttach missing expected ';'");
|
|
|
|
// Grab the PID to which we will attach (assume hex encoding).
|
|
lldb::pid_t pid = packet.GetU32 (LLDB_INVALID_PROCESS_ID, 16);
|
|
if (pid == LLDB_INVALID_PROCESS_ID)
|
|
return SendIllFormedResponse (packet, "vAttach failed to parse the process id");
|
|
|
|
// Attempt to attach.
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s attempting to attach to pid %" PRIu64, __FUNCTION__, pid);
|
|
|
|
Error error = AttachToProcess (pid);
|
|
|
|
if (error.Fail ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s failed to attach to pid %" PRIu64 ": %s\n", __FUNCTION__, pid, error.AsCString());
|
|
return SendErrorResponse (0x01);
|
|
}
|
|
|
|
// Notify we attached by sending a stop packet.
|
|
return SendStopReasonForState (m_debugged_process_sp->GetState (), true);
|
|
|
|
return PacketResult::Success;
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::FlushInferiorOutput ()
|
|
{
|
|
// If we're not monitoring an inferior's terminal, ignore this.
|
|
if (!m_stdio_communication.IsConnected())
|
|
return;
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s() called", __FUNCTION__);
|
|
|
|
// FIXME implement a timeout on the join.
|
|
m_stdio_communication.JoinReadThread();
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::MaybeCloseInferiorTerminalConnection ()
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
|
|
|
|
// Tell the stdio connection to shut down.
|
|
if (m_stdio_communication.IsConnected())
|
|
{
|
|
auto connection = m_stdio_communication.GetConnection();
|
|
if (connection)
|
|
{
|
|
Error error;
|
|
connection->Disconnect (&error);
|
|
|
|
if (error.Success ())
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s disconnect process terminal stdio - SUCCESS", __FUNCTION__);
|
|
}
|
|
else
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s disconnect process terminal stdio - FAIL: %s", __FUNCTION__, error.AsCString ());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
lldb_private::NativeThreadProtocolSP
|
|
GDBRemoteCommunicationServer::GetThreadFromSuffix (StringExtractorGDBRemote &packet)
|
|
{
|
|
NativeThreadProtocolSP thread_sp;
|
|
|
|
// We have no thread if we don't have a process.
|
|
if (!m_debugged_process_sp || m_debugged_process_sp->GetID () == LLDB_INVALID_PROCESS_ID)
|
|
return thread_sp;
|
|
|
|
// If the client hasn't asked for thread suffix support, there will not be a thread suffix.
|
|
// Use the current thread in that case.
|
|
if (!m_thread_suffix_supported)
|
|
{
|
|
const lldb::tid_t current_tid = GetCurrentThreadID ();
|
|
if (current_tid == LLDB_INVALID_THREAD_ID)
|
|
return thread_sp;
|
|
else if (current_tid == 0)
|
|
{
|
|
// Pick a thread.
|
|
return m_debugged_process_sp->GetThreadAtIndex (0);
|
|
}
|
|
else
|
|
return m_debugged_process_sp->GetThreadByID (current_tid);
|
|
}
|
|
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
|
|
|
|
// Parse out the ';'.
|
|
if (packet.GetBytesLeft () < 1 || packet.GetChar () != ';')
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s gdb-remote parse error: expected ';' prior to start of thread suffix: packet contents = '%s'", __FUNCTION__, packet.GetStringRef ().c_str ());
|
|
return thread_sp;
|
|
}
|
|
|
|
if (!packet.GetBytesLeft ())
|
|
return thread_sp;
|
|
|
|
// Parse out thread: portion.
|
|
if (strncmp (packet.Peek (), "thread:", strlen("thread:")) != 0)
|
|
{
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s gdb-remote parse error: expected 'thread:' but not found, packet contents = '%s'", __FUNCTION__, packet.GetStringRef ().c_str ());
|
|
return thread_sp;
|
|
}
|
|
packet.SetFilePos (packet.GetFilePos () + strlen("thread:"));
|
|
const lldb::tid_t tid = packet.GetHexMaxU64(false, 0);
|
|
if (tid != 0)
|
|
return m_debugged_process_sp->GetThreadByID (tid);
|
|
|
|
return thread_sp;
|
|
}
|
|
|
|
lldb::tid_t
|
|
GDBRemoteCommunicationServer::GetCurrentThreadID () const
|
|
{
|
|
if (m_current_tid == 0 || m_current_tid == LLDB_INVALID_THREAD_ID)
|
|
{
|
|
// Use whatever the debug process says is the current thread id
|
|
// since the protocol either didn't specify or specified we want
|
|
// any/all threads marked as the current thread.
|
|
if (!m_debugged_process_sp)
|
|
return LLDB_INVALID_THREAD_ID;
|
|
return m_debugged_process_sp->GetCurrentThreadID ();
|
|
}
|
|
// Use the specific current thread id set by the gdb remote protocol.
|
|
return m_current_tid;
|
|
}
|
|
|
|
uint32_t
|
|
GDBRemoteCommunicationServer::GetNextSavedRegistersID ()
|
|
{
|
|
Mutex::Locker locker (m_saved_registers_mutex);
|
|
return m_next_saved_registers_id++;
|
|
}
|
|
|
|
void
|
|
GDBRemoteCommunicationServer::ClearProcessSpecificData ()
|
|
{
|
|
Log *log (GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS|GDBR_LOG_PROCESS));
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s()", __FUNCTION__);
|
|
|
|
// Clear any auxv cached data.
|
|
// *BSD impls should be able to do this too.
|
|
#if defined(__linux__)
|
|
if (log)
|
|
log->Printf ("GDBRemoteCommunicationServer::%s clearing auxv buffer (previously %s)",
|
|
__FUNCTION__,
|
|
m_active_auxv_buffer_sp ? "was set" : "was not set");
|
|
m_active_auxv_buffer_sp.reset ();
|
|
#endif
|
|
}
|