lldb::ProcessSP PlatformRemoteGDBServer::Attach(
ProcessAttachInfo &attach_info, Debugger &debugger,
Target *target, // Can be NULL, if NULL create a new target, else use
// existing one
Error &error) {
lldb::ProcessSP process_sp;
if (IsRemote()) {
if (IsConnected()) {
lldb::pid_t debugserver_pid = LLDB_INVALID_PROCESS_ID;
std::string connect_url;
if (!LaunchGDBServer(debugserver_pid, connect_url)) {
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(
attach_info.GetListenerForProcess(debugger), "gdb-remote", NULL);
if (process_sp) {
error = process_sp->ConnectRemote(nullptr, connect_url.c_str());
if (error.Success()) {
ListenerSP listener_sp = attach_info.GetHijackListener();
if (listener_sp)
process_sp->HijackProcessEvents(listener_sp);
error = process_sp->Attach(attach_info);
}
if (error.Fail() && debugserver_pid != LLDB_INVALID_PROCESS_ID) {
KillSpawnedProcess(debugserver_pid);
}
}
}
}
} else {
error.SetErrorString("not connected to remote gdb server");
}
}
return process_sp;
}
lldb::ProcessSP
PlatformWindows::Attach(ProcessAttachInfo &attach_info,
Debugger &debugger,
Target *target,
Error &error)
{
error.Clear();
lldb::ProcessSP process_sp;
if (!IsHost())
{
if (m_remote_platform_sp)
process_sp = m_remote_platform_sp->Attach (attach_info, debugger, target, error);
else
error.SetErrorString ("the platform is not currently connected");
return process_sp;
}
if (target == nullptr)
{
TargetSP new_target_sp;
FileSpec emptyFileSpec;
ArchSpec emptyArchSpec;
error = debugger.GetTargetList().CreateTarget(debugger,
nullptr,
nullptr,
false,
nullptr,
new_target_sp);
target = new_target_sp.get();
}
if (!target || error.Fail())
return process_sp;
debugger.GetTargetList().SetSelectedTarget(target);
const char *plugin_name = attach_info.GetProcessPluginName();
process_sp = target->CreateProcess(attach_info.GetListenerForProcess(debugger), plugin_name, nullptr);
process_sp->HijackProcessEvents(attach_info.GetHijackListener());
if (process_sp)
error = process_sp->Attach (attach_info);
return process_sp;
}
lldb::ProcessSP
PlatformLinux::Attach(ProcessAttachInfo &attach_info,
Debugger &debugger,
Target *target,
Listener &listener,
Error &error)
{
lldb::ProcessSP process_sp;
if (IsHost())
{
if (target == NULL)
{
TargetSP new_target_sp;
FileSpec emptyFileSpec;
ArchSpec emptyArchSpec;
error = debugger.GetTargetList().CreateTarget (debugger,
emptyFileSpec,
emptyArchSpec,
false,
m_remote_platform_sp,
new_target_sp);
target = new_target_sp.get();
}
else
error.Clear();
if (target && error.Success())
{
debugger.GetTargetList().SetSelectedTarget(target);
process_sp = target->CreateProcess (listener,
attach_info.GetProcessPluginName(),
NULL);
if (process_sp)
error = process_sp->Attach (attach_info);
}
}
else
{
if (m_remote_platform_sp)
process_sp = m_remote_platform_sp->Attach (attach_info, debugger, target, listener, error);
else
error.SetErrorString ("the platform is not currently connected");
}
return process_sp;
}
lldb::ProcessSP
PlatformFreeBSD::Attach(ProcessAttachInfo &attach_info,
Debugger &debugger,
Target *target,
Error &error)
{
lldb::ProcessSP process_sp;
if (IsHost())
{
if (target == NULL)
{
TargetSP new_target_sp;
ArchSpec emptyArchSpec;
error = debugger.GetTargetList().CreateTarget (debugger,
NULL,
emptyArchSpec,
false,
m_remote_platform_sp,
new_target_sp);
target = new_target_sp.get();
}
else
error.Clear();
if (target && error.Success())
{
debugger.GetTargetList().SetSelectedTarget(target);
// The freebsd always currently uses the GDB remote debugger plug-in
// so even when debugging locally we are debugging remotely!
// Just like the darwin plugin.
process_sp = target->CreateProcess (attach_info.GetListenerForProcess(debugger), "gdb-remote", NULL);
if (process_sp)
error = process_sp->Attach (attach_info);
}
}
else
{
if (m_remote_platform_sp)
process_sp = m_remote_platform_sp->Attach (attach_info, debugger, target, error);
else
error.SetErrorString ("the platform is not currently connected");
}
return process_sp;
}
Error
ProcessWindows::DoAttachToProcessWithID(lldb::pid_t pid, const ProcessAttachInfo &attach_info)
{
m_session_data.reset(new ProcessWindowsData(!attach_info.GetContinueOnceAttached()));
DebugDelegateSP delegate(new LocalDebugDelegate(shared_from_this()));
DebuggerThreadSP debugger(new DebuggerThread(delegate));
m_session_data->m_debugger = debugger;
DWORD process_id = static_cast<DWORD>(pid);
Error error = debugger->DebugAttach(process_id, attach_info);
if (error.Fail())
{
WINLOG_IFALL(WINDOWS_LOG_PROCESS,
"DoAttachToProcessWithID encountered an error occurred initiating the asynchronous attach. %s",
error.AsCString());
return error;
}
HostProcess process;
error = WaitForDebuggerConnection(debugger, process);
if (error.Fail())
{
WINLOG_IFALL(WINDOWS_LOG_PROCESS,
"DoAttachToProcessWithID encountered an error waiting for the debugger to connect. %s",
error.AsCString());
return error;
}
WINLOG_IFALL(WINDOWS_LOG_PROCESS, "DoAttachToProcessWithID successfully attached to process with pid=%u",
process_id);
// We've hit the initial stop. If eLaunchFlagsStopAtEntry was specified, the private state
// should already be set to eStateStopped as a result of hitting the initial breakpoint. If
// it was not set, the breakpoint should have already been resumed from and the private state
// should already be eStateRunning.
SetID(process.GetProcessId());
return error;
}
lldb::ProcessSP
PlatformPOSIX::Attach (ProcessAttachInfo &attach_info,
Debugger &debugger,
Target *target,
Error &error)
{
lldb::ProcessSP process_sp;
Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM));
if (IsHost())
{
if (target == NULL)
{
TargetSP new_target_sp;
error = debugger.GetTargetList().CreateTarget (debugger,
NULL,
NULL,
false,
NULL,
new_target_sp);
target = new_target_sp.get();
if (log)
log->Printf ("PlatformPOSIX::%s created new target", __FUNCTION__);
}
else
{
error.Clear();
if (log)
log->Printf ("PlatformPOSIX::%s target already existed, setting target", __FUNCTION__);
}
if (target && error.Success())
{
debugger.GetTargetList().SetSelectedTarget(target);
if (log)
{
ModuleSP exe_module_sp = target->GetExecutableModule ();
log->Printf("PlatformPOSIX::%s set selected target to %p %s", __FUNCTION__, (void *)target,
exe_module_sp ? exe_module_sp->GetFileSpec().GetPath().c_str() : "<null>");
}
process_sp = target->CreateProcess (attach_info.GetListenerForProcess(debugger), attach_info.GetProcessPluginName(), NULL);
if (process_sp)
{
// Set UnixSignals appropriately.
process_sp->SetUnixSignals (Host::GetUnixSignals ());
auto listener_sp = attach_info.GetHijackListener();
if (listener_sp == nullptr)
{
listener_sp.reset(new Listener("lldb.PlatformPOSIX.attach.hijack"));
attach_info.SetHijackListener(listener_sp);
}
process_sp->HijackProcessEvents(listener_sp.get());
error = process_sp->Attach (attach_info);
}
}
}
else
{
if (m_remote_platform_sp)
process_sp = m_remote_platform_sp->Attach (attach_info, debugger, target, error);
else
error.SetErrorString ("the platform is not currently connected");
}
return process_sp;
}
