LLDB  mainline
GDBRemoteClientBase.cpp
Go to the documentation of this file.
1 //===-- GDBRemoteClientBase.cpp -------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "GDBRemoteClientBase.h"
10 
11 #include "llvm/ADT/StringExtras.h"
12 
15 
16 #include "ProcessGDBRemoteLog.h"
17 
18 using namespace lldb;
19 using namespace lldb_private;
20 using namespace lldb_private::process_gdb_remote;
21 using namespace std::chrono;
22 
23 // When we've sent a continue packet and are waiting for the target to stop,
24 // we wake up the wait with this interval to make sure the stub hasn't gone
25 // away while we were waiting.
26 static const seconds kWakeupInterval(5);
27 
28 /////////////////////////
29 // GDBRemoteClientBase //
30 /////////////////////////
31 
32 GDBRemoteClientBase::ContinueDelegate::~ContinueDelegate() = default;
33 
34 GDBRemoteClientBase::GDBRemoteClientBase(const char *comm_name,
35  const char *listener_name)
36  : GDBRemoteCommunication(comm_name, listener_name), m_async_count(0),
37  m_is_running(false), m_should_stop(false) {}
38 
40  ContinueDelegate &delegate, const UnixSignals &signals,
41  llvm::StringRef payload, std::chrono::seconds interrupt_timeout,
42  StringExtractorGDBRemote &response) {
44  response.Clear();
45 
46  {
47  std::lock_guard<std::mutex> lock(m_mutex);
48  m_continue_packet = std::string(payload);
49  m_should_stop = false;
50  }
51  ContinueLock cont_lock(*this);
52  if (!cont_lock)
53  return eStateInvalid;
54  OnRunPacketSent(true);
55  // The main ReadPacket loop wakes up at computed_timeout intervals, just to
56  // check that the connection hasn't dropped. When we wake up we also check
57  // whether there is an interrupt request that has reached its endpoint.
58  // If we want a shorter interrupt timeout that kWakeupInterval, we need to
59  // choose the shorter interval for the wake up as well.
60  std::chrono::seconds computed_timeout = std::min(interrupt_timeout,
62  for (;;) {
63  PacketResult read_result = ReadPacket(response, computed_timeout, false);
64  switch (read_result) {
66  std::lock_guard<std::mutex> lock(m_mutex);
67  if (m_async_count == 0) {
68  continue;
69  }
70  auto cur_time = steady_clock::now();
71  if (cur_time >= m_interrupt_endpoint)
72  return eStateInvalid;
73  else {
74  // We woke up and found an interrupt is in flight, but we haven't
75  // exceeded the interrupt wait time. So reset the wait time to the
76  // time left till the interrupt timeout. But don't wait longer
77  // than our wakeup timeout.
78  auto new_wait = m_interrupt_endpoint - cur_time;
79  computed_timeout = std::min(kWakeupInterval,
80  std::chrono::duration_cast<std::chrono::seconds>(new_wait));
81  continue;
82  }
83  break;
84  }
86  break;
87  default:
88  LLDB_LOGF(log, "GDBRemoteClientBase::%s () ReadPacket(...) => false",
89  __FUNCTION__);
90  return eStateInvalid;
91  }
92  if (response.Empty())
93  return eStateInvalid;
94 
95  const char stop_type = response.GetChar();
96  LLDB_LOGF(log, "GDBRemoteClientBase::%s () got packet: %s", __FUNCTION__,
97  response.GetStringRef().data());
98 
99  switch (stop_type) {
100  case 'W':
101  case 'X':
102  return eStateExited;
103  case 'E':
104  // ERROR
105  return eStateInvalid;
106  default:
107  LLDB_LOGF(log, "GDBRemoteClientBase::%s () unrecognized async packet",
108  __FUNCTION__);
109  return eStateInvalid;
110  case 'O': {
111  std::string inferior_stdout;
112  response.GetHexByteString(inferior_stdout);
113  delegate.HandleAsyncStdout(inferior_stdout);
114  break;
115  }
116  case 'A':
117  delegate.HandleAsyncMisc(
118  llvm::StringRef(response.GetStringRef()).substr(1));
119  break;
120  case 'J':
121  delegate.HandleAsyncStructuredDataPacket(response.GetStringRef());
122  break;
123  case 'T':
124  case 'S':
125  // Do this with the continue lock held.
126  const bool should_stop = ShouldStop(signals, response);
127  response.SetFilePos(0);
128 
129  // The packet we should resume with. In the future we should check our
130  // thread list and "do the right thing" for new threads that show up
131  // while we stop and run async packets. Setting the packet to 'c' to
132  // continue all threads is the right thing to do 99.99% of the time
133  // because if a thread was single stepping, and we sent an interrupt, we
134  // will notice above that we didn't stop due to an interrupt but stopped
135  // due to stepping and we would _not_ continue. This packet may get
136  // modified by the async actions (e.g. to send a signal).
137  m_continue_packet = 'c';
138  cont_lock.unlock();
139 
140  delegate.HandleStopReply();
141  if (should_stop)
142  return eStateStopped;
143 
144  switch (cont_lock.lock()) {
146  break;
148  return eStateInvalid;
150  return eStateStopped;
151  }
152  OnRunPacketSent(false);
153  break;
154  }
155  }
156 }
157 
159  int signo, std::chrono::seconds interrupt_timeout) {
160  Lock lock(*this, interrupt_timeout);
161  if (!lock || !lock.DidInterrupt())
162  return false;
163 
164  m_continue_packet = 'C';
165  m_continue_packet += llvm::hexdigit((signo / 16) % 16);
166  m_continue_packet += llvm::hexdigit(signo % 16);
167  return true;
168 }
169 
170 bool GDBRemoteClientBase::Interrupt(std::chrono::seconds interrupt_timeout) {
171  Lock lock(*this, interrupt_timeout);
172  if (!lock.DidInterrupt())
173  return false;
174  m_should_stop = true;
175  return true;
176 }
177 
180  llvm::StringRef payload, StringExtractorGDBRemote &response,
181  std::chrono::seconds interrupt_timeout) {
182  Lock lock(*this, interrupt_timeout);
183  if (!lock) {
184  if (Log *log =
186  LLDB_LOGF(log,
187  "GDBRemoteClientBase::%s failed to get mutex, not sending "
188  "packet '%.*s'",
189  __FUNCTION__, int(payload.size()), payload.data());
191  }
192 
193  return SendPacketAndWaitForResponseNoLock(payload, response);
194 }
195 
198  llvm::StringRef payload, StringExtractorGDBRemote &response,
199  std::chrono::seconds interrupt_timeout,
200  llvm::function_ref<void(llvm::StringRef)> output_callback) {
201  Lock lock(*this, interrupt_timeout);
202  if (!lock) {
203  if (Log *log =
205  LLDB_LOGF(log,
206  "GDBRemoteClientBase::%s failed to get mutex, not sending "
207  "packet '%.*s'",
208  __FUNCTION__, int(payload.size()), payload.data());
210  }
211 
212  PacketResult packet_result = SendPacketNoLock(payload);
213  if (packet_result != PacketResult::Success)
214  return packet_result;
215 
216  return ReadPacketWithOutputSupport(response, GetPacketTimeout(), true,
217  output_callback);
218 }
219 
222  llvm::StringRef payload, StringExtractorGDBRemote &response) {
223  PacketResult packet_result = SendPacketNoLock(payload);
224  if (packet_result != PacketResult::Success)
225  return packet_result;
226 
227  const size_t max_response_retries = 3;
228  for (size_t i = 0; i < max_response_retries; ++i) {
229  packet_result = ReadPacket(response, GetPacketTimeout(), true);
230  // Make sure we received a response
231  if (packet_result != PacketResult::Success)
232  return packet_result;
233  // Make sure our response is valid for the payload that was sent
234  if (response.ValidateResponse())
235  return packet_result;
236  // Response says it wasn't valid
238  LLDB_LOGF(
239  log,
240  "error: packet with payload \"%.*s\" got invalid response \"%s\": %s",
241  int(payload.size()), payload.data(), response.GetStringRef().data(),
242  (i == (max_response_retries - 1))
243  ? "using invalid response and giving up"
244  : "ignoring response and waiting for another");
245  }
246  return packet_result;
247 }
248 
250  llvm::StringRef payload, std::chrono::seconds interrupt_timeout,
251  StringExtractorGDBRemote &response) {
253  LLDB_LOGF(log, "GDBRemoteCommunicationClient::%s ()", __FUNCTION__);
254 
255  // we want to lock down packet sending while we continue
256  Lock lock(*this, interrupt_timeout);
257 
258  LLDB_LOGF(log,
259  "GDBRemoteCommunicationClient::%s () sending vCont packet: %.*s",
260  __FUNCTION__, int(payload.size()), payload.data());
261 
262  if (SendPacketNoLock(payload) != PacketResult::Success)
263  return false;
264 
265  OnRunPacketSent(true);
266 
267  // wait for the response to the vCont
268  if (ReadPacket(response, llvm::None, false) == PacketResult::Success) {
269  if (response.IsOKResponse())
270  return true;
271  }
272 
273  return false;
274 }
276  StringExtractorGDBRemote &response) {
277  std::lock_guard<std::mutex> lock(m_mutex);
278 
279  if (m_async_count == 0)
280  return true; // We were not interrupted. The process stopped on its own.
281 
282  // Older debugserver stubs (before April 2016) can return two stop-reply
283  // packets in response to a ^C packet. Additionally, all debugservers still
284  // return two stop replies if the inferior stops due to some other reason
285  // before the remote stub manages to interrupt it. We need to wait for this
286  // additional packet to make sure the packet sequence does not get skewed.
287  StringExtractorGDBRemote extra_stop_reply_packet;
288  ReadPacket(extra_stop_reply_packet, milliseconds(100), false);
289 
290  // Interrupting is typically done using SIGSTOP or SIGINT, so if the process
291  // stops with some other signal, we definitely want to stop.
292  const uint8_t signo = response.GetHexU8(UINT8_MAX);
293  if (signo != signals.GetSignalNumberFromName("SIGSTOP") &&
294  signo != signals.GetSignalNumberFromName("SIGINT"))
295  return true;
296 
297  // We probably only stopped to perform some async processing, so continue
298  // after that is done.
299  // TODO: This is not 100% correct, as the process may have been stopped with
300  // SIGINT or SIGSTOP that was not caused by us (e.g. raise(SIGINT)). This will
301  // normally cause a stop, but if it's done concurrently with a async
302  // interrupt, that stop will get eaten (llvm.org/pr20231).
303  return false;
304 }
305 
307  if (first)
309 }
310 
311 ///////////////////////////////////////
312 // GDBRemoteClientBase::ContinueLock //
313 ///////////////////////////////////////
314 
316  : m_comm(comm), m_acquired(false) {
317  lock();
318 }
319 
321  if (m_acquired)
322  unlock();
323 }
324 
326  lldbassert(m_acquired);
327  {
328  std::unique_lock<std::mutex> lock(m_comm.m_mutex);
329  m_comm.m_is_running = false;
330  }
331  m_comm.m_cv.notify_all();
332  m_acquired = false;
333 }
334 
338  LLDB_LOGF(log, "GDBRemoteClientBase::ContinueLock::%s() resuming with %s",
339  __FUNCTION__, m_comm.m_continue_packet.c_str());
340 
341  lldbassert(!m_acquired);
342  std::unique_lock<std::mutex> lock(m_comm.m_mutex);
343  m_comm.m_cv.wait(lock, [this] { return m_comm.m_async_count == 0; });
344  if (m_comm.m_should_stop) {
345  m_comm.m_should_stop = false;
346  LLDB_LOGF(log, "GDBRemoteClientBase::ContinueLock::%s() cancelled",
347  __FUNCTION__);
348  return LockResult::Cancelled;
349  }
350  if (m_comm.SendPacketNoLock(m_comm.m_continue_packet) !=
352  return LockResult::Failed;
353 
354  lldbassert(!m_comm.m_is_running);
355  m_comm.m_is_running = true;
356  m_acquired = true;
357  return LockResult::Success;
358 }
359 
360 ///////////////////////////////
361 // GDBRemoteClientBase::Lock //
362 ///////////////////////////////
363 
365  std::chrono::seconds interrupt_timeout)
366  : m_async_lock(comm.m_async_mutex, std::defer_lock), m_comm(comm),
367  m_interrupt_timeout(interrupt_timeout), m_acquired(false),
368  m_did_interrupt(false) {
370  if (m_acquired)
371  m_async_lock.lock();
372 }
373 
376  std::unique_lock<std::mutex> lock(m_comm.m_mutex);
377  if (m_comm.m_is_running && m_interrupt_timeout == std::chrono::seconds(0))
378  return; // We were asked to avoid interrupting the sender. Lock is not
379  // acquired.
380 
381  ++m_comm.m_async_count;
382  if (m_comm.m_is_running) {
383  if (m_comm.m_async_count == 1) {
384  // The sender has sent the continue packet and we are the first async
385  // packet. Let's interrupt it.
386  const char ctrl_c = '\x03';
388  size_t bytes_written = m_comm.Write(&ctrl_c, 1, status, nullptr);
389  if (bytes_written == 0) {
390  --m_comm.m_async_count;
391  LLDB_LOGF(log, "GDBRemoteClientBase::Lock::Lock failed to send "
392  "interrupt packet");
393  return;
394  }
395  m_comm.m_interrupt_endpoint = steady_clock::now() + m_interrupt_timeout;
396  if (log)
397  log->PutCString("GDBRemoteClientBase::Lock::Lock sent packet: \\x03");
398  }
399  m_comm.m_cv.wait(lock, [this] { return !m_comm.m_is_running; });
400  m_did_interrupt = true;
401  }
402  m_acquired = true;
403 }
404 
406  if (!m_acquired)
407  return;
408  {
409  std::unique_lock<std::mutex> lock(m_comm.m_mutex);
410  --m_comm.m_async_count;
411  }
412  m_comm.m_cv.notify_one();
413 }
kWakeupInterval
static const seconds kWakeupInterval(5)
lldb_private::process_gdb_remote::GDBRemoteClientBase::SendvContPacket
bool SendvContPacket(llvm::StringRef payload, std::chrono::seconds interrupt_timeout, StringExtractorGDBRemote &response)
Definition: GDBRemoteClientBase.cpp:249
lldb_private::process_gdb_remote::GDBRemoteClientBase::ShouldStop
bool ShouldStop(const UnixSignals &signals, StringExtractorGDBRemote &response)
Definition: GDBRemoteClientBase.cpp:275
GDBRemoteClientBase.h
StringExtractor::SetFilePos
void SetFilePos(uint32_t idx)
Definition: StringExtractor.h:39
lldb_private::process_gdb_remote::GDBRemoteClientBase::m_async_mutex
std::recursive_mutex m_async_mutex
This handles the synchronization between individual async threads.
Definition: GDBRemoteClientBase.h:144
lldb_private::process_gdb_remote::GDBRemoteClientBase::m_async_count
uint32_t m_async_count
Number of threads interested in sending.
Definition: GDBRemoteClientBase.h:133
lldb_private::process_gdb_remote::GDBRemoteClientBase::OnRunPacketSent
virtual void OnRunPacketSent(bool first)
Definition: GDBRemoteClientBase.cpp:306
StringExtractor::GetStringRef
llvm::StringRef GetStringRef() const
Definition: StringExtractor.h:48
lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketResult
PacketResult
Definition: GDBRemoteCommunication.h:66
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueLock::unlock
void unlock()
Definition: GDBRemoteClientBase.cpp:325
lldb_private::process_gdb_remote::GDBRemoteClientBase::m_mutex
std::mutex m_mutex
Variables handling synchronization between the Continue thread and any other threads wishing to send ...
Definition: GDBRemoteClientBase.h:121
LLDB_LOGF
#define LLDB_LOGF(log,...)
Definition: Log.h:249
lldb_private::process_gdb_remote::GDBRemoteCommunication
Definition: GDBRemoteCommunication.h:56
lldb_private::UnixSignals::GetSignalNumberFromName
int32_t GetSignalNumberFromName(const char *name) const
Definition: UnixSignals.cpp:147
StringExtractor::Empty
bool Empty()
Definition: StringExtractor.h:50
lldb_private::process_gdb_remote::GDBRemoteClientBase::Lock::m_async_lock
std::unique_lock< std::recursive_mutex > m_async_lock
Definition: GDBRemoteClientBase.h:85
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueLock::LockResult::Failed
@ Failed
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueDelegate
Definition: GDBRemoteClientBase.h:21
lldb::eStateExited
@ eStateExited
Process has exited and can't be examined.
Definition: lldb-enumerations.h:90
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueDelegate::HandleAsyncStructuredDataPacket
virtual void HandleAsyncStructuredDataPacket(llvm::StringRef data)=0
Process asynchronously-received structured data.
lldb::eStateStopped
@ eStateStopped
Process or thread is stopped and can be examined.
Definition: lldb-enumerations.h:84
lldb_private::process_gdb_remote::GDBRemoteClientBase::SendPacketAndWaitForResponseNoLock
PacketResult SendPacketAndWaitForResponseNoLock(llvm::StringRef payload, StringExtractorGDBRemote &response)
Definition: GDBRemoteClientBase.cpp:221
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueLock::ContinueLock
ContinueLock(GDBRemoteClientBase &comm)
Definition: GDBRemoteClientBase.cpp:315
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueDelegate::HandleAsyncMisc
virtual void HandleAsyncMisc(llvm::StringRef data)=0
LLDBAssert.h
lldb_private::process_gdb_remote::GDBRemoteClientBase::Lock::DidInterrupt
bool DidInterrupt() const
Definition: GDBRemoteClientBase.h:82
lldb_private::process_gdb_remote::GDBRemoteClientBase::SendAsyncSignal
bool SendAsyncSignal(int signo, std::chrono::seconds interrupt_timeout)
Definition: GDBRemoteClientBase.cpp:158
UnixSignals.h
lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketResult::ErrorSendFailed
@ ErrorSendFailed
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueDelegate::HandleAsyncStdout
virtual void HandleAsyncStdout(llvm::StringRef out)=0
lldb_private::process_gdb_remote::GDBRemoteClientBase::SendPacketAndReceiveResponseWithOutputSupport
PacketResult SendPacketAndReceiveResponseWithOutputSupport(llvm::StringRef payload, StringExtractorGDBRemote &response, std::chrono::seconds interrupt_timeout, llvm::function_ref< void(llvm::StringRef)> output_callback)
Definition: GDBRemoteClientBase.cpp:197
lldb::ConnectionStatus
ConnectionStatus
Connection Status Types.
Definition: lldb-enumerations.h:295
lldb_private::process_gdb_remote::GDBRemoteCommunication::eBroadcastBitRunPacketSent
@ eBroadcastBitRunPacketSent
Definition: GDBRemoteCommunication.h:59
lldb_private::UnixSignals
Definition: UnixSignals.h:22
lldb_private::process_gdb_remote::GDBRemoteClientBase::Lock::m_acquired
bool m_acquired
Definition: GDBRemoteClientBase.h:88
StringExtractor::GetChar
char GetChar(char fail_value='\0')
Definition: StringExtractor.cpp:45
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueLock::LockResult
LockResult
Definition: GDBRemoteClientBase.h:151
string
string(SUBSTRING ${p} 10 -1 pStripped) if($
Definition: Plugins/CMakeLists.txt:38
StringExtractor::GetHexU8
uint8_t GetHexU8(uint8_t fail_value=0, bool set_eof_on_fail=true)
Definition: StringExtractor.cpp:76
lldb_private::process_gdb_remote
Definition: GDBRemoteClientBase.h:17
GDBR_LOG_PROCESS
#define GDBR_LOG_PROCESS
Definition: ProcessGDBRemoteLog.h:14
lldb_private::process_gdb_remote::GDBRemoteClientBase::SendContinuePacketAndWaitForResponse
lldb::StateType SendContinuePacketAndWaitForResponse(ContinueDelegate &delegate, const UnixSignals &signals, llvm::StringRef payload, std::chrono::seconds interrupt_timeout, StringExtractorGDBRemote &response)
Definition: GDBRemoteClientBase.cpp:39
lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketResult::Success
@ Success
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueLock::LockResult::Cancelled
@ Cancelled
lldb_private::process_gdb_remote::GDBRemoteClientBase::Lock::~Lock
~Lock()
Definition: GDBRemoteClientBase.cpp:405
lldb_private::process_gdb_remote::GDBRemoteClientBase
Definition: GDBRemoteClientBase.h:19
StringExtractor::GetHexByteString
size_t GetHexByteString(std::string &str)
Definition: StringExtractor.cpp:300
lldbassert
#define lldbassert(x)
Definition: LLDBAssert.h:15
lldb_private::Broadcaster::BroadcastEvent
void BroadcastEvent(lldb::EventSP &event_sp)
Broadcast an event which has no associated data.
Definition: Broadcaster.h:262
StringExtractor::Clear
void Clear()
Definition: StringExtractor.h:41
lldb_private::process_gdb_remote::GDBRemoteCommunication::ReadPacket
PacketResult ReadPacket(StringExtractorGDBRemote &response, Timeout< std::micro > timeout, bool sync_on_timeout)
Definition: GDBRemoteCommunication.cpp:226
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueDelegate::HandleStopReply
virtual void HandleStopReply()=0
StringExtractorGDBRemote::ValidateResponse
bool ValidateResponse() const
Definition: StringExtractorGDBRemote.cpp:602
lldb_private::process_gdb_remote::GDBRemoteCommunication::ReadPacketWithOutputSupport
PacketResult ReadPacketWithOutputSupport(StringExtractorGDBRemote &response, Timeout< std::micro > timeout, bool sync_on_timeout, llvm::function_ref< void(llvm::StringRef)> output_callback)
Definition: GDBRemoteCommunication.cpp:209
StringExtractorGDBRemote::IsOKResponse
bool IsOKResponse() const
Definition: StringExtractorGDBRemote.cpp:442
lldb_private::process_gdb_remote::GDBRemoteCommunication::SendPacketNoLock
PacketResult SendPacketNoLock(llvm::StringRef payload)
Definition: GDBRemoteCommunication.cpp:122
ProcessGDBRemoteLog.h
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueLock
Definition: GDBRemoteClientBase.h:149
lldb_private::process_gdb_remote::ProcessGDBRemoteLog::GetLogIfAllCategoriesSet
static Log * GetLogIfAllCategoriesSet(uint32_t mask)
Definition: ProcessGDBRemoteLog.h:38
lldb_private::process_gdb_remote::GDBRemoteClientBase::m_interrupt_endpoint
std::chrono::time_point< std::chrono::steady_clock > m_interrupt_endpoint
When was the interrupt packet sent.
Definition: GDBRemoteClientBase.h:130
lldb_private::process_gdb_remote::GDBRemoteClientBase::SendPacketAndWaitForResponse
PacketResult SendPacketAndWaitForResponse(llvm::StringRef payload, StringExtractorGDBRemote &response, std::chrono::seconds interrupt_timeout=std::chrono::seconds(0))
Definition: GDBRemoteClientBase.cpp:179
lldb::eConnectionStatusSuccess
@ eConnectionStatusSuccess
Success.
Definition: lldb-enumerations.h:296
lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketResult::ErrorReplyTimeout
@ ErrorReplyTimeout
lldb_private::process_gdb_remote::GDBRemoteClientBase::m_should_stop
bool m_should_stop
Whether we should resume after a stop.
Definition: GDBRemoteClientBase.h:139
lldb_private
A class that represents a running process on the host machine.
Definition: SBCommandInterpreterRunOptions.h:16
lldb_private::process_gdb_remote::GDBRemoteClientBase::Lock::SyncWithContinueThread
void SyncWithContinueThread()
Definition: GDBRemoteClientBase.cpp:374
lldb_private::process_gdb_remote::GDBRemoteClientBase::Lock
Definition: GDBRemoteClientBase.h:66
lldb_private::process_gdb_remote::GDBRemoteClientBase::Interrupt
bool Interrupt(std::chrono::seconds interrupt_timeout)
Definition: GDBRemoteClientBase.cpp:170
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueLock::LockResult::Success
@ Success
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueLock::~ContinueLock
~ContinueLock()
Definition: GDBRemoteClientBase.cpp:320
lldb::eStateInvalid
@ eStateInvalid
Definition: lldb-enumerations.h:74
lldb_private::process_gdb_remote::GDBRemoteClientBase::m_continue_packet
std::string m_continue_packet
Packet with which to resume after an async interrupt.
Definition: GDBRemoteClientBase.h:126
lldb_private::process_gdb_remote::GDBRemoteCommunication::GetPacketTimeout
std::chrono::seconds GetPacketTimeout() const
Definition: GDBRemoteCommunication.h:126
StringExtractorGDBRemote
Definition: StringExtractorGDBRemote.h:21
lldb_private::process_gdb_remote::GDBRemoteClientBase::ContinueLock::lock
LockResult lock()
Definition: GDBRemoteClientBase.cpp:336
lldb::StateType
StateType
Process and Thread States.
Definition: lldb-enumerations.h:73
lldb_private::Log
Definition: Log.h:49
lldb_private::process_gdb_remote::GDBRemoteClientBase::Lock::Lock
Lock(GDBRemoteClientBase &comm, std::chrono::seconds interrupt_timeout=std::chrono::seconds(0))
Definition: GDBRemoteClientBase.cpp:364
GDBR_LOG_PACKETS
#define GDBR_LOG_PACKETS
Definition: ProcessGDBRemoteLog.h:16
lldb
Definition: SBAddress.h:15
lldb_private::Log::PutCString
void PutCString(const char *cstr)
Definition: Log.cpp:117