lldb::ProcessSP
PlatformRemoteGDBServer::DebugProcess (lldb_private::ProcessLaunchInfo &launch_info,
lldb_private::Debugger &debugger,
lldb_private::Target *target, // Can be NULL, if NULL create a new target, else use existing one
lldb_private::Error &error)
{
lldb::ProcessSP process_sp;
if (IsRemote())
{
if (IsConnected())
{
lldb::pid_t debugserver_pid = LLDB_INVALID_PROCESS_ID;
ArchSpec remote_arch = GetRemoteSystemArchitecture();
llvm::Triple &remote_triple = remote_arch.GetTriple();
uint16_t port = 0;
if (remote_triple.getVendor() == llvm::Triple::Apple && remote_triple.getOS() == llvm::Triple::IOS)
{
// When remote debugging to iOS, we use a USB mux that always talks
// to localhost, so we will need the remote debugserver to accept connections
// only from localhost, no matter what our current hostname is
port = m_gdb_client.LaunchGDBserverAndGetPort(debugserver_pid, "127.0.0.1");
}
else
{
// All other hosts should use their actual hostname
port = m_gdb_client.LaunchGDBserverAndGetPort(debugserver_pid, NULL);
}
if (port == 0)
{
error.SetErrorStringWithFormat ("unable to launch a GDB server on '%s'", GetHostname ());
}
else
{
if (target == NULL)
{
TargetSP new_target_sp;
error = debugger.GetTargetList().CreateTarget (debugger,
NULL,
NULL,
false,
NULL,
new_target_sp);
target = new_target_sp.get();
}
else
error.Clear();
if (target && error.Success())
{
debugger.GetTargetList().SetSelectedTarget(target);
// The darwin always currently uses the GDB remote debugger plug-in
// so even when debugging locally we are debugging remotely!
process_sp = target->CreateProcess (launch_info.GetListenerForProcess(debugger), "gdb-remote", NULL);
if (process_sp)
{
char connect_url[256];
const char *override_hostname = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_HOSTNAME");
const char *port_offset_c_str = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_PORT_OFFSET");
int port_offset = port_offset_c_str ? ::atoi(port_offset_c_str) : 0;
const int connect_url_len = ::snprintf (connect_url,
sizeof(connect_url),
"connect://%s:%u",
override_hostname ? override_hostname : GetHostname (),
port + port_offset);
assert (connect_url_len < (int)sizeof(connect_url));
error = process_sp->ConnectRemote (NULL, connect_url);
// Retry the connect remote one time...
if (error.Fail())
error = process_sp->ConnectRemote (NULL, connect_url);
if (error.Success())
error = process_sp->Launch(launch_info);
else if (debugserver_pid != LLDB_INVALID_PROCESS_ID)
{
printf ("error: connect remote failed (%s)\n", error.AsCString());
m_gdb_client.KillSpawnedProcess(debugserver_pid);
}
}
}
}
}
else
{
error.SetErrorString("not connected to remote gdb server");
}
}
return process_sp;
}
