lldb_private::process_gdb_remote::GDBRemoteCommunication Class Reference

#include <GDBRemoteCommunication.h>

Inheritance diagram for lldb_private::process_gdb_remote::GDBRemoteCommunication:

Classes
class	ScopedTimeout

Public Types
enum class	PacketType { Invalid = 0 , Standard , Notify }
enum class	PacketResult {   Success = 0 , ErrorSendFailed , ErrorSendAck , ErrorReplyFailed ,   ErrorReplyTimeout , ErrorReplyInvalid , ErrorReplyAck , ErrorDisconnected ,   ErrorNoSequenceLock }

Public Member Functions
	GDBRemoteCommunication ()
	~GDBRemoteCommunication () override
PacketResult	GetAck ()
size_t	SendAck ()
size_t	SendNack ()
char	CalculcateChecksum (llvm::StringRef payload)
PacketType	CheckForPacket (const uint8_t *src, size_t src_len, StringExtractorGDBRemote &packet)
bool	GetSendAcks ()
std::chrono::seconds	SetPacketTimeout (std::chrono::seconds packet_timeout)
std::chrono::seconds	GetPacketTimeout () const
Status	StartDebugserverProcess (const char *url, Platform *platform, ProcessLaunchInfo &launch_info, uint16_t *port, const Args *inferior_args, int pass_comm_fd)
void	DumpHistory (Stream &strm)
void	SetPacketRecorder (repro::PacketRecorder *recorder)
Public Member Functions inherited from lldb_private::Communication
	Communication ()
	Construct the Communication object.
virtual	~Communication ()
	Destructor.
virtual void	Clear ()
lldb::ConnectionStatus	Connect (const char *url, Status *error_ptr)
	Connect using the current connection by passing url to its connect function.
virtual lldb::ConnectionStatus	Disconnect (Status *error_ptr=nullptr)
	Disconnect the communications connection if one is currently connected.
bool	IsConnected () const
	Check if the connection is valid.
bool	HasConnection () const
lldb_private::Connection *	GetConnection ()
virtual size_t	Read (void *dst, size_t dst_len, const Timeout< std::micro > &timeout, lldb::ConnectionStatus &status, Status *error_ptr)
	Read bytes from the current connection.
size_t	Write (const void *src, size_t src_len, lldb::ConnectionStatus &status, Status *error_ptr)
	The actual write function that attempts to write to the communications protocol.
size_t	WriteAll (const void *src, size_t src_len, lldb::ConnectionStatus &status, Status *error_ptr)
	Repeatedly attempt writing until either src_len bytes are written or a permanent failure occurs.
virtual void	SetConnection (std::unique_ptr< Connection > connection)
	Sets the connection that it to be used by this class.
bool	GetCloseOnEOF () const
void	SetCloseOnEOF (bool b)

Static Public Member Functions
static llvm::Error	ConnectLocally (GDBRemoteCommunication &client, GDBRemoteCommunication &server)
static std::string	ExpandRLE (std::string)
	Expand GDB run-length encoding.
Static Public Member Functions inherited from lldb_private::Communication
static std::string	ConnectionStatusAsString (lldb::ConnectionStatus status)

Protected Member Functions
PacketResult	SendPacketNoLock (llvm::StringRef payload)
PacketResult	SendNotificationPacketNoLock (llvm::StringRef notify_type, std::deque< std::string > &queue, llvm::StringRef payload)
PacketResult	SendRawPacketNoLock (llvm::StringRef payload, bool skip_ack=false)
PacketResult	ReadPacket (StringExtractorGDBRemote &response, Timeout< std::micro > timeout, bool sync_on_timeout)
PacketResult	WaitForPacketNoLock (StringExtractorGDBRemote &response, Timeout< std::micro > timeout, bool sync_on_timeout)
bool	CompressionIsEnabled ()
bool	DecompressPacket ()
Status	StartListenThread (const char *hostname="127.0.0.1", uint16_t port=0)
bool	JoinListenThread ()
lldb::thread_result_t	ListenThread ()
Protected Member Functions inherited from lldb_private::Communication
size_t	ReadFromConnection (void *dst, size_t dst_len, const Timeout< std::micro > &timeout, lldb::ConnectionStatus &status, Status *error_ptr)

Protected Attributes
std::chrono::seconds	m_packet_timeout
uint32_t	m_echo_number
LazyBool	m_supports_qEcho
GDBRemoteCommunicationHistory	m_history
bool	m_send_acks
bool	m_is_platform
std::string	m_bytes
std::recursive_mutex	m_bytes_mutex
CompressionType	m_compression_type
Protected Attributes inherited from lldb_private::Communication
lldb::ConnectionSP	m_connection_sp
	The connection that is current in use by this communications class.
std::mutex	m_write_mutex
	Don't let multiple threads write at the same time...
bool	m_close_on_eof

Private Member Functions
	GDBRemoteCommunication (const GDBRemoteCommunication &)=delete
const GDBRemoteCommunication &	operator= (const GDBRemoteCommunication &)=delete

Private Attributes
std::promise< uint16_t >	m_port_promise
HostThread	m_listen_thread
std::string	m_listen_url

Detailed Description

Definition at line 83 of file GDBRemoteCommunication.h.

Member Enumeration Documentation

PacketResult

enum class lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketResult

strong

Enumerator
Success
ErrorSendFailed
ErrorSendAck
ErrorReplyFailed
ErrorReplyTimeout
ErrorReplyInvalid
ErrorReplyAck
ErrorDisconnected
ErrorNoSequenceLock

Definition at line 87 of file GDBRemoteCommunication.h.

PacketType

enum class lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketType

strong

Enumerator
Invalid
Standard
Notify

Definition at line 85 of file GDBRemoteCommunication.h.

Constructor & Destructor Documentation

GDBRemoteCommunication() [1/2]

GDBRemoteCommunication::GDBRemoteCommunication

(

)

Definition at line 59 of file GDBRemoteCommunication.cpp.

~GDBRemoteCommunication()

GDBRemoteCommunication::~GDBRemoteCommunication ( )

override

Definition at line 72 of file GDBRemoteCommunication.cpp.

References lldb_private::Communication::Disconnect(), and lldb_private::Communication::IsConnected().

GDBRemoteCommunication() [2/2]

lldb_private::process_gdb_remote::GDBRemoteCommunication::GDBRemoteCommunication ( const GDBRemoteCommunication &  )

privatedelete

Member Function Documentation

CalculcateChecksum()

char GDBRemoteCommunication::CalculcateChecksum

(

llvm::StringRef

payload

)

Definition at line 83 of file GDBRemoteCommunication.cpp.

Referenced by CheckForPacket(), DecompressPacket(), SendNotificationPacketNoLock(), and SendPacketNoLock().

CheckForPacket()

GDBRemoteCommunication::PacketType GDBRemoteCommunication::CheckForPacket	(	const uint8_t *	src,
		size_t	src_len,
		StringExtractorGDBRemote &	packet
	)

Definition at line 616 of file GDBRemoteCommunication.cpp.

References lldb_private::process_gdb_remote::GDBRemoteCommunicationHistory::AddPacket(), CalculcateChecksum(), StringExtractor::Clear(), CompressionIsEnabled(), DecompressPacket(), lldb_private::process_gdb_remote::GDBRemoteCommunicationHistory::DidDumpToLog(), lldb_private::process_gdb_remote::GDBRemoteCommunicationHistory::Dump(), lldb_private::GDBRemotePacket::ePacketTypeRecv, ExpandRLE(), lldb_private::GetLog(), GetSendAcks(), lldb_private::StreamString::GetString(), lldb_private::Log::GetVerbose(), Invalid, LLDB_LOGF, m_bytes, m_bytes_mutex, m_history, Notify, lldb_private::process_gdb_remote::Packets, lldb_private::Stream::Printf(), lldb_private::Log::PutString(), SendAck(), SendNack(), StringExtractor::SetFilePos(), and Standard.

Referenced by WaitForPacketNoLock().

CompressionIsEnabled()

bool lldb_private::process_gdb_remote::GDBRemoteCommunication::CompressionIsEnabled ( )

inlineprotected

Definition at line 197 of file GDBRemoteCommunication.h.

References m_compression_type, and lldb_private::process_gdb_remote::None.

Referenced by CheckForPacket(), and DecompressPacket().

ConnectLocally()

llvm::Error GDBRemoteCommunication::ConnectLocally ( GDBRemoteCommunication &  client, GDBRemoteCommunication &  server  )

static

Definition at line 1208 of file GDBRemoteCommunication.cpp.

References lldb_private::TCPSocket::Accept(), lldb_private::Status::AsCString(), lldb::eConnectionStatusSuccess, error(), lldb_private::TCPSocket::GetLocalPortNumber(), lldb_private::TCPSocket::Listen(), lldb_private::Communication::SetConnection(), and lldb_private::Status::ToError().

DecompressPacket()

bool GDBRemoteCommunication::DecompressPacket ( )

protected

Definition at line 387 of file GDBRemoteCommunication.cpp.

References CalculcateChecksum(), CompressionIsEnabled(), lldb_private::GetLog(), GetSendAcks(), LLDB_LOGF, lldb_private::process_gdb_remote::LZ4, lldb_private::process_gdb_remote::LZFSE, lldb_private::process_gdb_remote::LZMA, m_bytes, m_compression_type, lldb_private::process_gdb_remote::Packets, SendAck(), SendNack(), and lldb_private::process_gdb_remote::ZlibDeflate.

Referenced by CheckForPacket().

DumpHistory()

void GDBRemoteCommunication::DumpHistory

(

Stream &

strm

)

Definition at line 1205 of file GDBRemoteCommunication.cpp.

References lldb_private::process_gdb_remote::GDBRemoteCommunicationHistory::Dump(), and m_history.

Referenced by lldb_private::process_gdb_remote::ProcessGDBRemote::DumpPluginHistory().

ExpandRLE()

std::string GDBRemoteCommunication::ExpandRLE ( std::string  packet )

static

Expand GDB run-length encoding.

Definition at line 1295 of file GDBRemoteCommunication.cpp.

Referenced by CheckForPacket().

GetAck()

GDBRemoteCommunication::PacketResult GDBRemoteCommunication::GetAck

(

)

Definition at line 209 of file GDBRemoteCommunication.cpp.

References StringExtractorGDBRemote::eAck, ErrorSendAck, GetPacketTimeout(), StringExtractorGDBRemote::GetResponseType(), Success, and WaitForPacketNoLock().

Referenced by SendRawPacketNoLock().

GetPacketTimeout()

std::chrono::seconds lldb_private::process_gdb_remote::GDBRemoteCommunication::GetPacketTimeout ( ) const

inline

Definition at line 147 of file GDBRemoteCommunication.h.

References m_packet_timeout.

Referenced by GetAck(), lldb_private::process_gdb_remote::GDBRemoteCommunicationClient::KillProcess(), lldb_private::process_gdb_remote::GDBRemoteCommunicationClient::QueryNoAckModeSupported(), lldb_private::process_gdb_remote::GDBRemoteCommunication::ScopedTimeout::ScopedTimeout(), lldb_private::process_gdb_remote::GDBRemoteClientBase::SendPacketAndReceiveResponseWithOutputSupport(), and lldb_private::process_gdb_remote::GDBRemoteClientBase::SendPacketAndWaitForResponseNoLock().

GetSendAcks()

bool lldb_private::process_gdb_remote::GDBRemoteCommunication::GetSendAcks ( )

inline

Definition at line 134 of file GDBRemoteCommunication.h.

References m_send_acks.

Referenced by CheckForPacket(), DecompressPacket(), and SendRawPacketNoLock().

JoinListenThread()

bool GDBRemoteCommunication::JoinListenThread ( )

protected

Definition at line 856 of file GDBRemoteCommunication.cpp.

References lldb_private::HostThread::IsJoinable(), lldb_private::HostThread::Join(), and m_listen_thread.

Referenced by StartDebugserverProcess().

ListenThread()

lldb::thread_result_t GDBRemoteCommunication::ListenThread ( )

protected

Definition at line 862 of file GDBRemoteCommunication.cpp.

References lldb_private::ConnectionFileDescriptor::Connect(), lldb::eConnectionStatusSuccess, error(), lldb_private::Communication::GetConnection(), m_listen_url, and lldb_private::Communication::SetConnection().

Referenced by StartListenThread().

operator=()

const GDBRemoteCommunication & lldb_private::process_gdb_remote::GDBRemoteCommunication::operator= ( const GDBRemoteCommunication &  )

privatedelete

ReadPacket()

GDBRemoteCommunication::PacketResult GDBRemoteCommunication::ReadPacket ( StringExtractorGDBRemote &  response, Timeout< std::micro >  timeout, bool  sync_on_timeout  )

protected

Definition at line 223 of file GDBRemoteCommunication.cpp.

References lldb_private::GetLog(), StringExtractorGDBRemote::GetResponseType(), StringExtractor::GetStringRef(), LLDB_LOG, lldb_private::process_gdb_remote::Packets, Success, and WaitForPacketNoLock().

Referenced by lldb_private::process_gdb_remote::GDBRemoteCommunicationServer::GetPacketAndSendResponse(), lldb_private::process_gdb_remote::GDBRemoteClientBase::ReadPacketWithOutputSupport(), lldb_private::process_gdb_remote::GDBRemoteClientBase::SendContinuePacketAndWaitForResponse(), lldb_private::process_gdb_remote::GDBRemoteClientBase::SendPacketAndWaitForResponseNoLock(), and lldb_private::process_gdb_remote::GDBRemoteClientBase::ShouldStop().

SendAck()

size_t GDBRemoteCommunication::SendAck

(

)

Definition at line 92 of file GDBRemoteCommunication.cpp.

References lldb_private::process_gdb_remote::GDBRemoteCommunicationHistory::AddPacket(), lldb::eConnectionStatusSuccess, lldb_private::GDBRemotePacket::ePacketTypeSend, lldb_private::GetLog(), LLDB_LOGF, m_history, lldb_private::process_gdb_remote::Packets, and lldb_private::Communication::WriteAll().

Referenced by CheckForPacket(), DecompressPacket(), and lldb_private::process_gdb_remote::GDBRemoteCommunicationClient::HandshakeWithServer().

SendNack()

size_t GDBRemoteCommunication::SendNack

(

)

Definition at line 102 of file GDBRemoteCommunication.cpp.

References lldb_private::process_gdb_remote::GDBRemoteCommunicationHistory::AddPacket(), lldb::eConnectionStatusSuccess, lldb_private::GDBRemotePacket::ePacketTypeSend, lldb_private::GetLog(), LLDB_LOGF, m_history, lldb_private::process_gdb_remote::Packets, and lldb_private::Communication::WriteAll().

Referenced by CheckForPacket(), and DecompressPacket().

SendNotificationPacketNoLock()

GDBRemoteCommunication::PacketResult GDBRemoteCommunication::SendNotificationPacketNoLock ( llvm::StringRef  notify_type, std::deque< std::string > &  queue, llvm::StringRef  payload  )

protected

Definition at line 125 of file GDBRemoteCommunication.cpp.

References CalculcateChecksum(), lldb::eByteOrderBig, lldb_private::StreamString::GetString(), lldb_private::Stream::PutChar(), lldb_private::Stream::PutHex8(), SendRawPacketNoLock(), Success, and lldb_private::Stream::Write().

Referenced by lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::SendONotification(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::SendStopReplyPacketForThread(), and lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::SendWResponse().

SendPacketNoLock()

GDBRemoteCommunication::PacketResult GDBRemoteCommunication::SendPacketNoLock ( llvm::StringRef  payload )

protected

Definition at line 113 of file GDBRemoteCommunication.cpp.

References CalculcateChecksum(), lldb::eByteOrderBig, lldb_private::StreamString::GetString(), lldb_private::Stream::PutChar(), lldb_private::Stream::PutHex8(), SendRawPacketNoLock(), and lldb_private::Stream::Write().

Referenced by lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle__M(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_g(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_jLLDBTraceGetBinaryData(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_jModulesInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerPlatform::Handle_jSignalsInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_jThreadsInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_memory_read(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_p(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qC(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerPlatform::Handle_qC(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qEcho(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qFileLoadAddress(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qfThreadInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qGetWorkingDir(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerPlatform::Handle_qGetWorkingDir(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qGroupName(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qHostInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerPlatform::Handle_qLaunchGDBServer(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qLaunchSuccess(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qMemoryRegionInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qMemTags(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qModuleInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerPlatform::Handle_qPathComplete(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qPlatform_chmod(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qPlatform_mkdir(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qPlatform_shell(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qProcessInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerPlatform::Handle_qProcessInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qProcessInfoPID(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerPlatform::Handle_qQueryGDBServer(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qRegisterInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qSaveCore(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_QSaveRegisterState(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qSpeedTest(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qsProcessInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qsThreadInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qSupported(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_qUserName(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qWatchpointSupportInfo(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_qXfer(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_stop_reason(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_vCont_actions(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_Close(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_Exists(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_FStat(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_MD5(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_Mode(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_Open(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_pRead(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_pWrite(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_Size(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_symlink(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_vFile_unlink(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::HandleNotificationAck(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServer::SendErrorResponse(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServer::SendOKResponse(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::SendONotification(), lldb_private::process_gdb_remote::GDBRemoteClientBase::SendPacketAndReceiveResponseWithOutputSupport(), lldb_private::process_gdb_remote::GDBRemoteClientBase::SendPacketAndWaitForResponseNoLock(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::SendStopReplyPacketForThread(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServer::SendUnimplementedResponse(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::SendWResponse(), and WaitForPacketNoLock().

SendRawPacketNoLock()

GDBRemoteCommunication::PacketResult GDBRemoteCommunication::SendRawPacketNoLock ( llvm::StringRef  payload, bool  skip_ack = false  )

protected

Definition at line 148 of file GDBRemoteCommunication.cpp.

References lldb_private::process_gdb_remote::GDBRemoteCommunicationHistory::AddPacket(), lldb_private::process_gdb_remote::GDBRemoteCommunicationHistory::DidDumpToLog(), lldb_private::process_gdb_remote::GDBRemoteCommunicationHistory::Dump(), lldb::eConnectionStatusSuccess, lldb_private::GDBRemotePacket::ePacketTypeSend, ErrorSendFailed, GetAck(), lldb_private::GetLog(), GetSendAcks(), lldb_private::StreamString::GetString(), lldb_private::Communication::IsConnected(), LLDB_LOGF, m_history, lldb_private::process_gdb_remote::Packets, lldb_private::Stream::Printf(), lldb_private::Log::PutString(), Success, and lldb_private::Communication::WriteAll().

Referenced by SendNotificationPacketNoLock(), and SendPacketNoLock().

SetPacketRecorder()

void lldb_private::process_gdb_remote::GDBRemoteCommunication::SetPacketRecorder

(

repro::PacketRecorder *

recorder

)

SetPacketTimeout()

std::chrono::seconds lldb_private::process_gdb_remote::GDBRemoteCommunication::SetPacketTimeout ( std::chrono::seconds  packet_timeout )

inline

Definition at line 141 of file GDBRemoteCommunication.h.

References m_packet_timeout.

Referenced by lldb_private::process_gdb_remote::GDBRemoteCommunicationClient::GetHostInfo(), lldb_private::process_gdb_remote::ProcessGDBRemote::ProcessGDBRemote(), and lldb_private::process_gdb_remote::GDBRemoteCommunication::ScopedTimeout::ScopedTimeout().

StartDebugserverProcess()

Status GDBRemoteCommunication::StartDebugserverProcess	(	const char *	url,
		Platform *	platform,
		ProcessLaunchInfo &	launch_info,
		uint16_t *	port,
		const Args *	inferior_args,
		int	pass_comm_fd
	)

Definition at line 882 of file GDBRemoteCommunication.cpp.

References lldb_private::Args::AppendArgument(), lldb_private::Args::AppendArguments(), lldb_private::ProcessLaunchInfo::AppendCloseFileAction(), lldb_private::ProcessLaunchInfo::AppendDuplicateFileAction(), lldb_private::FileSpec::AppendPathComponent(), lldb_private::ProcessLaunchInfo::AppendSuppressFileAction(), lldb_private::PipePosix::CanRead(), lldb_private::PipePosix::CanWrite(), lldb_private::Args::Clear(), lldb_private::FileSpec::Clear(), lldb_private::PipePosix::Close(), lldb_private::PipePosix::CloseWriteFileDescriptor(), lldb_private::PipePosix::CreateNew(), lldb_private::PipePosix::CreateWithUniqueName(), DEBUGSERVER_BASENAME, lldb_private::PipePosix::Delete(), lldb_private::ProcessInfo::Dump(), error(), lldb_private::FileSystem::Exists(), lldb_private::Args::GetArgumentCount(), lldb_private::ProcessInfo::GetArguments(), lldb_private::StreamString::GetData(), lldb_private::Host::GetEnvironment(), lldb_private::ProcessInfo::GetEnvironment(), lldb_private::ProcessInfo::GetExecutableFile(), lldb_private::ProcessLaunchInfo::GetLaunchInSeparateProcessGroup(), lldb_private::GetLog(), lldb_private::FileSpec::GetPath(), lldb_private::ProcessInfo::GetProcessID(), lldb_private::PipePosix::GetReadFileDescriptor(), lldb_private::StreamString::GetString(), lldb_private::PipePosix::GetWritePipe(), lldb_private::FileSystem::Instance(), JoinListenThread(), lldb_private::Host::LaunchProcess(), LLDB_INVALID_PROCESS_ID, LLDB_LOGF, lldb_private::Platform::LocateExecutable(), m_port_promise, lldb_private::PipePosix::OpenAsReader(), PATH_MAX, lldb_private::Stream::Printf(), lldb_private::process_gdb_remote::Process, lldb_private::PipePosix::ReadWithTimeout(), lldb_private::FileSpec::SetFile(), and StartListenThread().

Referenced by lldb_private::process_gdb_remote::ProcessGDBRemote::LaunchAndConnectToDebugserver(), and lldb_private::process_gdb_remote::GDBRemoteCommunicationServerPlatform::LaunchGDBServer().

StartListenThread()

Status GDBRemoteCommunication::StartListenThread ( const char *  hostname = "127.0.0.1", uint16_t  port = 0  )

protected

Definition at line 835 of file GDBRemoteCommunication.cpp.

References lldb_private::HostThread::IsJoinable(), lldb_private::ThreadLauncher::LaunchThread(), ListenThread(), m_listen_thread, m_listen_url, and lldb_private::Communication::SetConnection().

Referenced by StartDebugserverProcess().

WaitForPacketNoLock()

GDBRemoteCommunication::PacketResult GDBRemoteCommunication::WaitForPacketNoLock ( StringExtractorGDBRemote &  response, Timeout< std::micro >  timeout, bool  sync_on_timeout  )

protected

Sync the remote GDB server and make sure we get a response that corresponds to what we send.

Sends a "qEcho" packet and makes sure it gets the exact packet echoed back. If the qEcho packet isn't supported, we send a qC packet and make sure we get a valid thread ID back. We use the "qC" packet since its response if very unique: is responds with "QC%x" where x is the thread ID of the current thread. This makes the response unique enough from other packet responses to ensure we are back on track.

This packet is needed after we time out sending a packet so we can ensure that we are getting the response for the packet we are sending. There are no sequence IDs in the GDB remote protocol (there used to be, but they are not supported anymore) so if you timeout sending packet "abc", you might then send packet "cde" and get the response for the previous "abc" packet. Many responses are "OK" or "" (unsupported) or "EXX" (error) so many responses for packets can look like responses for other packets. So if we timeout, we need to ensure that we can get back on track. If we can't get back on track, we must disconnect.

Definition at line 241 of file GDBRemoteCommunication.cpp.

References CheckForPacket(), StringExtractor::Clear(), lldb_private::Communication::ConnectionStatusAsString(), lldb_private::Communication::Disconnect(), lldb::eConnectionStatusEndOfFile, lldb::eConnectionStatusError, lldb::eConnectionStatusInterrupted, lldb::eConnectionStatusLostConnection, lldb::eConnectionStatusNoConnection, lldb::eConnectionStatusSuccess, lldb::eConnectionStatusTimedOut, lldb_private::eLazyBoolYes, error(), ErrorDisconnected, ErrorReplyFailed, ErrorReplyTimeout, lldb_private::RegularExpression::Execute(), lldb_private::GetLog(), StringExtractor::GetStringRef(), Invalid, lldb_private::Communication::IsConnected(), LLDB_LOGV, m_echo_number, m_supports_qEcho, lldb_private::process_gdb_remote::Packets, lldb_private::Communication::Read(), SendPacketNoLock(), Success, and WaitForPacketNoLock().

Referenced by GetAck(), ReadPacket(), and WaitForPacketNoLock().

Member Data Documentation

m_bytes

std::string lldb_private::process_gdb_remote::GDBRemoteCommunication::m_bytes

protected

Definition at line 179 of file GDBRemoteCommunication.h.

Referenced by CheckForPacket(), and DecompressPacket().

m_bytes_mutex

std::recursive_mutex lldb_private::process_gdb_remote::GDBRemoteCommunication::m_bytes_mutex

protected

Definition at line 180 of file GDBRemoteCommunication.h.

Referenced by CheckForPacket().

m_compression_type

CompressionType lldb_private::process_gdb_remote::GDBRemoteCommunication::m_compression_type

protected

Definition at line 181 of file GDBRemoteCommunication.h.

Referenced by CompressionIsEnabled(), DecompressPacket(), and lldb_private::process_gdb_remote::GDBRemoteCommunicationClient::MaybeEnableCompression().

m_echo_number

uint32_t lldb_private::process_gdb_remote::GDBRemoteCommunication::m_echo_number

protected

Definition at line 171 of file GDBRemoteCommunication.h.

Referenced by WaitForPacketNoLock().

m_history

GDBRemoteCommunicationHistory lldb_private::process_gdb_remote::GDBRemoteCommunication::m_history

protected

Definition at line 173 of file GDBRemoteCommunication.h.

Referenced by CheckForPacket(), DumpHistory(), SendAck(), SendNack(), and SendRawPacketNoLock().

m_is_platform

bool lldb_private::process_gdb_remote::GDBRemoteCommunication::m_is_platform

protected

Definition at line 175 of file GDBRemoteCommunication.h.

m_listen_thread

HostThread lldb_private::process_gdb_remote::GDBRemoteCommunication::m_listen_thread

private

Definition at line 223 of file GDBRemoteCommunication.h.

Referenced by JoinListenThread(), and StartListenThread().

m_listen_url

std::string lldb_private::process_gdb_remote::GDBRemoteCommunication::m_listen_url

private

Definition at line 224 of file GDBRemoteCommunication.h.

Referenced by ListenThread(), and StartListenThread().

m_packet_timeout

std::chrono::seconds lldb_private::process_gdb_remote::GDBRemoteCommunication::m_packet_timeout

protected

Definition at line 170 of file GDBRemoteCommunication.h.

Referenced by GetPacketTimeout(), and SetPacketTimeout().

m_port_promise

std::promise<uint16_t> lldb_private::process_gdb_remote::GDBRemoteCommunication::m_port_promise

private

Definition at line 221 of file GDBRemoteCommunication.h.

Referenced by StartDebugserverProcess().

m_send_acks

bool lldb_private::process_gdb_remote::GDBRemoteCommunication::m_send_acks

protected

Definition at line 174 of file GDBRemoteCommunication.h.

Referenced by GetSendAcks(), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::Handle_QStartNoAckMode(), and lldb_private::process_gdb_remote::GDBRemoteCommunicationClient::QueryNoAckModeSupported().

m_supports_qEcho

LazyBool lldb_private::process_gdb_remote::GDBRemoteCommunication::m_supports_qEcho

protected

Definition at line 172 of file GDBRemoteCommunication.h.

Referenced by lldb_private::process_gdb_remote::GDBRemoteCommunicationClient::GetEchoSupported(), lldb_private::process_gdb_remote::GDBRemoteCommunicationClient::GetRemoteQSupported(), and WaitForPacketNoLock().

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The documentation for this class was generated from the following files:

• GDBRemoteCommunication.h
• GDBRemoteCommunication.cpp