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144f3a9c90
teak-llvm/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
Greg Clayton 144f3a9c90 Added a new class to Process.h: ProcessAttachInfo. This class contains enough 
info for us to attach by pid, or by name and will also allow us to eventually
do a lot more powerful attaches. If you look at the options for the "platform
process list" command, there are many options which we should be able to
specify. This will allow us to do things like "attach to a process named 'tcsh'
that has a parent process ID of 123", or "attach to a process named 'x' which
has an effective user ID of 345". 

I finished up the --shell implementation so that it can be used without the
--tty option in "process launch". The "--shell" option now can take an 
optional argument which is the path to the shell to use (or a partial name
like "sh" which we will find using the current PATH environment variable).

Modified the Process::Attach to use the new ProcessAttachInfo as the sole
argument and centralized a lot of code that was in the "process attach"
Execute function so that everyone can take advantage of the powerful new
attach functionality.

llvm-svn: 144615
2011-11-15 03:53:30 +00:00

835 lines
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//===-- GDBRemoteCommunicationServer.cpp ------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "GDBRemoteCommunicationServer.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
#include "llvm/ADT/Triple.h"
#include "lldb/Interpreter/Args.h"
#include "lldb/Core/ConnectionFileDescriptor.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/State.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Host/Endian.h"
#include "lldb/Host/Host.h"
#include "lldb/Host/TimeValue.h"
#include "lldb/Target/Process.h"
// Project includes
#include "Utility/StringExtractorGDBRemote.h"
#include "ProcessGDBRemote.h"
#include "ProcessGDBRemoteLog.h"
using namespace lldb;
using namespace lldb_private;
//----------------------------------------------------------------------
// GDBRemoteCommunicationServer constructor
//----------------------------------------------------------------------
GDBRemoteCommunicationServer::GDBRemoteCommunicationServer(bool is_platform) :
GDBRemoteCommunication ("gdb-remote.server", "gdb-remote.server.rx_packet", is_platform),
m_async_thread (LLDB_INVALID_HOST_THREAD),
m_process_launch_info (),
m_process_launch_error (),
m_proc_infos (),
m_proc_infos_index (0),
m_lo_port_num (0),
m_hi_port_num (0)
{
}
//----------------------------------------------------------------------
// Destructor
//----------------------------------------------------------------------
GDBRemoteCommunicationServer::~GDBRemoteCommunicationServer()
{
}
//void *
//GDBRemoteCommunicationServer::AsyncThread (void *arg)
//{
// GDBRemoteCommunicationServer *server = (GDBRemoteCommunicationServer*) arg;
//
// LogSP log;// (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (GDBR_LOG_PROCESS));
// if (log)
// log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %i) thread starting...", __FUNCTION__, arg, process->GetID());
//
// StringExtractorGDBRemote packet;
//
// while ()
// {
// if (packet.
// }
//
// if (log)
// log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %i) thread exiting...", __FUNCTION__, arg, process->GetID());
//
// process->m_async_thread = LLDB_INVALID_HOST_THREAD;
// return NULL;
//}
//
bool
GDBRemoteCommunicationServer::GetPacketAndSendResponse (uint32_t timeout_usec,
Error &error,
bool &interrupt,
bool &quit)
{
StringExtractorGDBRemote packet;
if (WaitForPacketWithTimeoutMicroSeconds(packet, timeout_usec))
{
const StringExtractorGDBRemote::ServerPacketType packet_type = packet.GetServerPacketType ();
switch (packet_type)
{
case StringExtractorGDBRemote::eServerPacketType_nack:
case StringExtractorGDBRemote::eServerPacketType_ack:
break;
case StringExtractorGDBRemote::eServerPacketType_invalid:
error.SetErrorString("invalid packet");
quit = true;
break;
case StringExtractorGDBRemote::eServerPacketType_interrupt:
error.SetErrorString("interrupt received");
interrupt = true;
break;
case StringExtractorGDBRemote::eServerPacketType_unimplemented:
return SendUnimplementedResponse (packet.GetStringRef().c_str()) > 0;
case StringExtractorGDBRemote::eServerPacketType_A:
return Handle_A (packet);
case StringExtractorGDBRemote::eServerPacketType_qfProcessInfo:
return Handle_qfProcessInfo (packet);
case StringExtractorGDBRemote::eServerPacketType_qsProcessInfo:
return Handle_qsProcessInfo (packet);
case StringExtractorGDBRemote::eServerPacketType_qC:
return Handle_qC (packet);
case StringExtractorGDBRemote::eServerPacketType_qHostInfo:
return Handle_qHostInfo (packet);
case StringExtractorGDBRemote::eServerPacketType_qLaunchGDBServer:
return Handle_qLaunchGDBServer (packet);
case StringExtractorGDBRemote::eServerPacketType_qLaunchSuccess:
return Handle_qLaunchSuccess (packet);
case StringExtractorGDBRemote::eServerPacketType_qGroupName:
return Handle_qGroupName (packet);
case StringExtractorGDBRemote::eServerPacketType_qProcessInfoPID:
return Handle_qProcessInfoPID (packet);
case StringExtractorGDBRemote::eServerPacketType_qSpeedTest:
return Handle_qSpeedTest (packet);
case StringExtractorGDBRemote::eServerPacketType_qUserName:
return Handle_qUserName (packet);
case StringExtractorGDBRemote::eServerPacketType_QEnvironment:
return Handle_QEnvironment (packet);
case StringExtractorGDBRemote::eServerPacketType_QSetDisableASLR:
return Handle_QSetDisableASLR (packet);
case StringExtractorGDBRemote::eServerPacketType_QSetSTDIN:
return Handle_QSetSTDIN (packet);
case StringExtractorGDBRemote::eServerPacketType_QSetSTDOUT:
return Handle_QSetSTDOUT (packet);
case StringExtractorGDBRemote::eServerPacketType_QSetSTDERR:
return Handle_QSetSTDERR (packet);
case StringExtractorGDBRemote::eServerPacketType_QSetWorkingDir:
return Handle_QSetWorkingDir (packet);
case StringExtractorGDBRemote::eServerPacketType_QStartNoAckMode:
return Handle_QStartNoAckMode (packet);
}
return true;
}
else
{
if (!IsConnected())
error.SetErrorString("lost connection");
else
error.SetErrorString("timeout");
}
return false;
}
size_t
GDBRemoteCommunicationServer::SendUnimplementedResponse (const char *)
{
// TODO: Log the packet we aren't handling...
return SendPacket ("");
}
size_t
GDBRemoteCommunicationServer::SendErrorResponse (uint8_t err)
{
char packet[16];
int packet_len = ::snprintf (packet, sizeof(packet), "E%2.2x", err);
assert (packet_len < sizeof(packet));
return SendPacket (packet, packet_len);
}
size_t
GDBRemoteCommunicationServer::SendOKResponse ()
{
return SendPacket ("OK");
}
bool
GDBRemoteCommunicationServer::HandshakeWithClient(Error *error_ptr)
{
return GetAck();
}
bool
GDBRemoteCommunicationServer::Handle_qHostInfo (StringExtractorGDBRemote &packet)
{
StreamString response;
// $cputype:16777223;cpusubtype:3;ostype:Darwin;vendor:apple;endian:little;ptrsize:8;#00
ArchSpec host_arch (Host::GetArchitecture ());
const llvm::Triple &host_triple = host_arch.GetTriple();
response.PutCString("triple:");
response.PutCStringAsRawHex8(host_triple.getTriple().c_str());
response.Printf (";ptrsize:%u;",host_arch.GetAddressByteSize());
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);
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 (Host::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 (Host::GetOSBuildString (s))
{
response.PutCString ("os_build:");
response.PutCStringAsRawHex8(s.c_str());
response.PutChar(';');
}
if (Host::GetOSKernelDescription (s))
{
response.PutCString ("os_kernel:");
response.PutCStringAsRawHex8(s.c_str());
response.PutChar(';');
}
if (Host::GetHostname (s))
{
response.PutCString ("hostname:");
response.PutCStringAsRawHex8(s.c_str());
response.PutChar(';');
}
return SendPacket (response) > 0;
}
static void
CreateProcessInfoResponse (const ProcessInstanceInfo &proc_info, StreamString &response)
{
response.Printf ("pid:%i;ppid:%i;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.PutCStringAsRawHex8(proc_triple.getTriple().c_str());
response.PutChar(';');
}
}
bool
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 SendPacket (response);
}
}
return SendErrorResponse (1);
}
bool
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);
}
bool
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 SendPacket (response);
}
return SendErrorResponse (4);
}
bool
GDBRemoteCommunicationServer::Handle_qUserName (StringExtractorGDBRemote &packet)
{
// 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 (Host::GetUserName (uid, name))
{
StreamString response;
response.PutCStringAsRawHex8 (name.c_str());
return SendPacket (response);
}
}
return SendErrorResponse (5);
}
bool
GDBRemoteCommunicationServer::Handle_qGroupName (StringExtractorGDBRemote &packet)
{
// 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 (Host::GetGroupName (gid, name))
{
StreamString response;
response.PutCStringAsRawHex8 (name.c_str());
return SendPacket (response);
}
}
return SendErrorResponse (6);
}
bool
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 SendPacket (response);
}
}
return SendErrorResponse (7);
}
static void *
AcceptPortFromInferior (void *arg)
{
const char *connect_url = (const char *)arg;
ConnectionFileDescriptor file_conn;
Error error;
if (file_conn.Connect (connect_url, &error) == eConnectionStatusSuccess)
{
char pid_str[256];
::memset (pid_str, 0, sizeof(pid_str));
ConnectionStatus status;
const size_t pid_str_len = file_conn.Read (pid_str, sizeof(pid_str), NULL, status, NULL);
if (pid_str_len > 0)
{
int pid = atoi (pid_str);
return (void *)(intptr_t)pid;
}
}
return NULL;
}
//
//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;
//}
bool
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...
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 becuase
// 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.GetHexByteString(arg) != (arg_len / 2))
success = false;
else
{
// If there are any bytes lft
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 (success)
{
m_process_launch_info.GetFlags().Set (eLaunchFlagDebug);
m_process_launch_error = Host::LaunchProcess (m_process_launch_info);
if (m_process_launch_info.GetProcessID() != LLDB_INVALID_PROCESS_ID)
{
return SendOKResponse ();
}
}
return SendErrorResponse (8);
}
bool
GDBRemoteCommunicationServer::Handle_qC (StringExtractorGDBRemote &packet)
{
lldb::pid_t pid = m_process_launch_info.GetProcessID();
StreamString response;
response.Printf("QC%x", pid);
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 SendPacket (response);
}
bool
GDBRemoteCommunicationServer::Handle_qLaunchGDBServer (StringExtractorGDBRemote &packet)
{
// Spawn a local debugserver as a platform so we can then attach or launch
// a process...
if (m_is_platform)
{
// Sleep and wait a bit for debugserver to start to listen...
ConnectionFileDescriptor file_conn;
char connect_url[PATH_MAX];
Error error;
char unix_socket_name[PATH_MAX] = "/tmp/XXXXXX";
if (::mktemp (unix_socket_name) == NULL)
{
error.SetErrorString ("failed to make temporary path for a unix socket");
}
else
{
::snprintf (connect_url, sizeof(connect_url), "unix-accept://%s", unix_socket_name);
// Spawn a new thread to accept the port that gets bound after
// binding to port 0 (zero).
lldb::thread_t accept_thread = Host::ThreadCreate (unix_socket_name,
AcceptPortFromInferior,
connect_url,
&error);
if (IS_VALID_LLDB_HOST_THREAD(accept_thread))
{
// Spawn a debugserver and try to get
ProcessLaunchInfo debugserver_launch_info;
error = StartDebugserverProcess ("localhost:0",
unix_socket_name,
debugserver_launch_info);
lldb::pid_t debugserver_pid = debugserver_launch_info.GetProcessID();
if (error.Success())
{
bool success = false;
thread_result_t accept_thread_result = NULL;
if (Host::ThreadJoin (accept_thread, &accept_thread_result, &error))
{
if (accept_thread_result)
{
uint16_t port = (intptr_t)accept_thread_result;
char response[256];
const int response_len = ::snprintf (response, sizeof(response), "pid:%u;port:%u;", debugserver_pid, port);
assert (response_len < sizeof(response));
//m_port_to_pid_map[port] = debugserver_launch_info.GetProcessID();
success = SendPacket (response, response_len) > 0;
}
}
::unlink (unix_socket_name);
if (!success)
{
if (debugserver_pid != LLDB_INVALID_PROCESS_ID)
::kill (debugserver_pid, SIGINT);
}
return success;
}
}
}
}
return SendErrorResponse (13);
}
bool
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 SendPacket (response);
}
bool
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 (9);
}
bool
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 ();
}
bool
GDBRemoteCommunicationServer::Handle_QSetWorkingDir (StringExtractorGDBRemote &packet)
{
packet.SetFilePos(::strlen ("QSetWorkingDir:"));
std::string path;
packet.GetHexByteString(path);
m_process_launch_info.SwapWorkingDirectory (path);
return SendOKResponse ();
}
bool
GDBRemoteCommunicationServer::Handle_QSetSTDIN (StringExtractorGDBRemote &packet)
{
packet.SetFilePos(::strlen ("QSetSTDIN:"));
ProcessLaunchInfo::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 (10);
}
bool
GDBRemoteCommunicationServer::Handle_QSetSTDOUT (StringExtractorGDBRemote &packet)
{
packet.SetFilePos(::strlen ("QSetSTDOUT:"));
ProcessLaunchInfo::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 (11);
}
bool
GDBRemoteCommunicationServer::Handle_QSetSTDERR (StringExtractorGDBRemote &packet)
{
packet.SetFilePos(::strlen ("QSetSTDERR:"));
ProcessLaunchInfo::FileAction file_action;
std::string path;
packet.GetHexByteString(path);
const bool read = true;
const bool write = true;
if (file_action.Open(STDERR_FILENO, path.c_str(), read, write))
{
m_process_launch_info.AppendFileAction(file_action);
return SendOKResponse ();
}
return SendErrorResponse (12);
}
bool
GDBRemoteCommunicationServer::Handle_QStartNoAckMode (StringExtractorGDBRemote &packet)
{
// Send response first before changing m_send_acks to we ack this packet
SendOKResponse ();
m_send_acks = false;
return true;
}
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