1 //===-- StringExtractorGDBRemote.cpp ----------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "Utility/StringExtractorGDBRemote.h"
12 #include <ctype.h> // for isxdigit
15 StringExtractorGDBRemote::ResponseType
16 StringExtractorGDBRemote::GetResponseType() const {
20 switch (m_packet[0]) {
22 if (m_packet.size() == 3 && isxdigit(m_packet[1]) && isxdigit(m_packet[2]))
27 if (m_packet.size() == 2 && m_packet[1] == 'K')
32 if (m_packet.size() == 1)
37 if (m_packet.size() == 1)
44 StringExtractorGDBRemote::ServerPacketType
45 StringExtractorGDBRemote::GetServerPacketType() const {
46 #define PACKET_MATCHES(s) \
47 ((packet_size == (sizeof(s) - 1)) && (strcmp((packet_cstr), (s)) == 0))
48 #define PACKET_STARTS_WITH(s) \
49 ((packet_size >= (sizeof(s) - 1)) && \
50 ::strncmp(packet_cstr, s, (sizeof(s) - 1)) == 0)
52 // Empty is not a supported packet...
54 return eServerPacketType_invalid;
56 const size_t packet_size = m_packet.size();
57 const char *packet_cstr = m_packet.c_str();
58 switch (m_packet[0]) {
61 return eServerPacketType_notify;
65 return eServerPacketType_interrupt;
70 return eServerPacketType_nack;
75 return eServerPacketType_ack;
79 return eServerPacketType_A;
83 switch (packet_cstr[1]) {
85 if (PACKET_STARTS_WITH("QEnvironment:"))
86 return eServerPacketType_QEnvironment;
87 if (PACKET_STARTS_WITH("QEnvironmentHexEncoded:"))
88 return eServerPacketType_QEnvironmentHexEncoded;
92 if (PACKET_STARTS_WITH("QPassSignals:"))
93 return eServerPacketType_QPassSignals;
96 if (PACKET_MATCHES("QStartNoAckMode"))
97 return eServerPacketType_QStartNoAckMode;
98 if (PACKET_STARTS_WITH("QSaveRegisterState"))
99 return eServerPacketType_QSaveRegisterState;
100 if (PACKET_STARTS_WITH("QSetDisableASLR:"))
101 return eServerPacketType_QSetDisableASLR;
102 if (PACKET_STARTS_WITH("QSetDetachOnError:"))
103 return eServerPacketType_QSetDetachOnError;
104 if (PACKET_STARTS_WITH("QSetSTDIN:"))
105 return eServerPacketType_QSetSTDIN;
106 if (PACKET_STARTS_WITH("QSetSTDOUT:"))
107 return eServerPacketType_QSetSTDOUT;
108 if (PACKET_STARTS_WITH("QSetSTDERR:"))
109 return eServerPacketType_QSetSTDERR;
110 if (PACKET_STARTS_WITH("QSetWorkingDir:"))
111 return eServerPacketType_QSetWorkingDir;
112 if (PACKET_STARTS_WITH("QSetLogging:"))
113 return eServerPacketType_QSetLogging;
114 if (PACKET_STARTS_WITH("QSetMaxPacketSize:"))
115 return eServerPacketType_QSetMaxPacketSize;
116 if (PACKET_STARTS_WITH("QSetMaxPayloadSize:"))
117 return eServerPacketType_QSetMaxPayloadSize;
118 if (PACKET_STARTS_WITH("QSetEnableAsyncProfiling;"))
119 return eServerPacketType_QSetEnableAsyncProfiling;
120 if (PACKET_STARTS_WITH("QSyncThreadState:"))
121 return eServerPacketType_QSyncThreadState;
125 if (PACKET_STARTS_WITH("QLaunchArch:"))
126 return eServerPacketType_QLaunchArch;
127 if (PACKET_MATCHES("QListThreadsInStopReply"))
128 return eServerPacketType_QListThreadsInStopReply;
132 if (PACKET_STARTS_WITH("QRestoreRegisterState:"))
133 return eServerPacketType_QRestoreRegisterState;
137 if (PACKET_MATCHES("QThreadSuffixSupported"))
138 return eServerPacketType_QThreadSuffixSupported;
144 switch (packet_cstr[1]) {
146 if (PACKET_MATCHES("qsProcessInfo"))
147 return eServerPacketType_qsProcessInfo;
148 if (PACKET_MATCHES("qsThreadInfo"))
149 return eServerPacketType_qsThreadInfo;
153 if (PACKET_STARTS_WITH("qfProcessInfo"))
154 return eServerPacketType_qfProcessInfo;
155 if (PACKET_STARTS_WITH("qfThreadInfo"))
156 return eServerPacketType_qfThreadInfo;
160 if (packet_size == 2)
161 return eServerPacketType_qC;
165 if (PACKET_STARTS_WITH("qEcho:"))
166 return eServerPacketType_qEcho;
170 if (PACKET_STARTS_WITH("qFileLoadAddress:"))
171 return eServerPacketType_qFileLoadAddress;
175 if (PACKET_STARTS_WITH("qGroupName:"))
176 return eServerPacketType_qGroupName;
177 if (PACKET_MATCHES("qGetWorkingDir"))
178 return eServerPacketType_qGetWorkingDir;
179 if (PACKET_MATCHES("qGetPid"))
180 return eServerPacketType_qGetPid;
181 if (PACKET_STARTS_WITH("qGetProfileData;"))
182 return eServerPacketType_qGetProfileData;
183 if (PACKET_MATCHES("qGDBServerVersion"))
184 return eServerPacketType_qGDBServerVersion;
188 if (PACKET_MATCHES("qHostInfo"))
189 return eServerPacketType_qHostInfo;
193 if (PACKET_STARTS_WITH("qKillSpawnedProcess"))
194 return eServerPacketType_qKillSpawnedProcess;
198 if (PACKET_STARTS_WITH("qLaunchGDBServer"))
199 return eServerPacketType_qLaunchGDBServer;
200 if (PACKET_MATCHES("qLaunchSuccess"))
201 return eServerPacketType_qLaunchSuccess;
205 if (PACKET_STARTS_WITH("qMemoryRegionInfo:"))
206 return eServerPacketType_qMemoryRegionInfo;
207 if (PACKET_MATCHES("qMemoryRegionInfo"))
208 return eServerPacketType_qMemoryRegionInfoSupported;
209 if (PACKET_STARTS_WITH("qModuleInfo:"))
210 return eServerPacketType_qModuleInfo;
214 if (PACKET_STARTS_WITH("qProcessInfoPID:"))
215 return eServerPacketType_qProcessInfoPID;
216 if (PACKET_STARTS_WITH("qPlatform_shell:"))
217 return eServerPacketType_qPlatform_shell;
218 if (PACKET_STARTS_WITH("qPlatform_mkdir:"))
219 return eServerPacketType_qPlatform_mkdir;
220 if (PACKET_STARTS_WITH("qPlatform_chmod:"))
221 return eServerPacketType_qPlatform_chmod;
222 if (PACKET_MATCHES("qProcessInfo"))
223 return eServerPacketType_qProcessInfo;
227 if (PACKET_MATCHES("qQueryGDBServer"))
228 return eServerPacketType_qQueryGDBServer;
232 if (PACKET_STARTS_WITH("qRcmd,"))
233 return eServerPacketType_qRcmd;
234 if (PACKET_STARTS_WITH("qRegisterInfo"))
235 return eServerPacketType_qRegisterInfo;
239 if (PACKET_STARTS_WITH("qSpeedTest:"))
240 return eServerPacketType_qSpeedTest;
241 if (PACKET_MATCHES("qShlibInfoAddr"))
242 return eServerPacketType_qShlibInfoAddr;
243 if (PACKET_MATCHES("qStepPacketSupported"))
244 return eServerPacketType_qStepPacketSupported;
245 if (PACKET_STARTS_WITH("qSupported"))
246 return eServerPacketType_qSupported;
247 if (PACKET_MATCHES("qSyncThreadStateSupported"))
248 return eServerPacketType_qSyncThreadStateSupported;
252 if (PACKET_STARTS_WITH("qThreadExtraInfo,"))
253 return eServerPacketType_qThreadExtraInfo;
254 if (PACKET_STARTS_WITH("qThreadStopInfo"))
255 return eServerPacketType_qThreadStopInfo;
259 if (PACKET_STARTS_WITH("qUserName:"))
260 return eServerPacketType_qUserName;
264 if (PACKET_MATCHES("qVAttachOrWaitSupported"))
265 return eServerPacketType_qVAttachOrWaitSupported;
269 if (PACKET_STARTS_WITH("qWatchpointSupportInfo:"))
270 return eServerPacketType_qWatchpointSupportInfo;
271 if (PACKET_MATCHES("qWatchpointSupportInfo"))
272 return eServerPacketType_qWatchpointSupportInfoSupported;
276 if (PACKET_STARTS_WITH("qXfer:auxv:read::"))
277 return eServerPacketType_qXfer_auxv_read;
283 if (PACKET_STARTS_WITH("jModulesInfo:"))
284 return eServerPacketType_jModulesInfo;
285 if (PACKET_MATCHES("jSignalsInfo"))
286 return eServerPacketType_jSignalsInfo;
287 if (PACKET_MATCHES("jThreadsInfo"))
288 return eServerPacketType_jThreadsInfo;
289 if (PACKET_STARTS_WITH("jTraceBufferRead:"))
290 return eServerPacketType_jTraceBufferRead;
291 if (PACKET_STARTS_WITH("jTraceConfigRead:"))
292 return eServerPacketType_jTraceConfigRead;
293 if (PACKET_STARTS_WITH("jTraceMetaRead:"))
294 return eServerPacketType_jTraceMetaRead;
295 if (PACKET_STARTS_WITH("jTraceStart:"))
296 return eServerPacketType_jTraceStart;
297 if (PACKET_STARTS_WITH("jTraceStop:"))
298 return eServerPacketType_jTraceStop;
302 if (PACKET_STARTS_WITH("vFile:")) {
303 if (PACKET_STARTS_WITH("vFile:open:"))
304 return eServerPacketType_vFile_open;
305 else if (PACKET_STARTS_WITH("vFile:close:"))
306 return eServerPacketType_vFile_close;
307 else if (PACKET_STARTS_WITH("vFile:pread"))
308 return eServerPacketType_vFile_pread;
309 else if (PACKET_STARTS_WITH("vFile:pwrite"))
310 return eServerPacketType_vFile_pwrite;
311 else if (PACKET_STARTS_WITH("vFile:size"))
312 return eServerPacketType_vFile_size;
313 else if (PACKET_STARTS_WITH("vFile:exists"))
314 return eServerPacketType_vFile_exists;
315 else if (PACKET_STARTS_WITH("vFile:stat"))
316 return eServerPacketType_vFile_stat;
317 else if (PACKET_STARTS_WITH("vFile:mode"))
318 return eServerPacketType_vFile_mode;
319 else if (PACKET_STARTS_WITH("vFile:MD5"))
320 return eServerPacketType_vFile_md5;
321 else if (PACKET_STARTS_WITH("vFile:symlink"))
322 return eServerPacketType_vFile_symlink;
323 else if (PACKET_STARTS_WITH("vFile:unlink"))
324 return eServerPacketType_vFile_unlink;
327 if (PACKET_STARTS_WITH("vAttach;"))
328 return eServerPacketType_vAttach;
329 if (PACKET_STARTS_WITH("vAttachWait;"))
330 return eServerPacketType_vAttachWait;
331 if (PACKET_STARTS_WITH("vAttachOrWait;"))
332 return eServerPacketType_vAttachOrWait;
333 if (PACKET_STARTS_WITH("vAttachName;"))
334 return eServerPacketType_vAttachName;
335 if (PACKET_STARTS_WITH("vCont;"))
336 return eServerPacketType_vCont;
337 if (PACKET_MATCHES("vCont?"))
338 return eServerPacketType_vCont_actions;
342 switch (packet_cstr[1]) {
344 return eServerPacketType__M;
347 return eServerPacketType__m;
352 if (packet_size == 1)
353 return eServerPacketType_stop_reason;
357 return eServerPacketType_c;
360 return eServerPacketType_C;
363 if (packet_size == 1)
364 return eServerPacketType_D;
368 if (packet_size == 1)
369 return eServerPacketType_g;
373 return eServerPacketType_G;
376 return eServerPacketType_H;
379 return eServerPacketType_I;
382 if (packet_size == 1)
383 return eServerPacketType_k;
387 return eServerPacketType_m;
390 return eServerPacketType_M;
393 return eServerPacketType_p;
396 return eServerPacketType_P;
399 if (packet_size == 1)
400 return eServerPacketType_s;
404 return eServerPacketType_S;
407 return eServerPacketType_x;
410 return eServerPacketType_X;
413 return eServerPacketType_T;
416 if (packet_cstr[1] >= '0' && packet_cstr[1] <= '4')
417 return eServerPacketType_z;
421 if (packet_cstr[1] >= '0' && packet_cstr[1] <= '4')
422 return eServerPacketType_Z;
425 return eServerPacketType_unimplemented;
428 bool StringExtractorGDBRemote::IsOKResponse() const {
429 return GetResponseType() == eOK;
432 bool StringExtractorGDBRemote::IsUnsupportedResponse() const {
433 return GetResponseType() == eUnsupported;
436 bool StringExtractorGDBRemote::IsNormalResponse() const {
437 return GetResponseType() == eResponse;
440 bool StringExtractorGDBRemote::IsErrorResponse() const {
441 return GetResponseType() == eError && m_packet.size() == 3 &&
442 isxdigit(m_packet[1]) && isxdigit(m_packet[2]);
445 uint8_t StringExtractorGDBRemote::GetError() {
446 if (GetResponseType() == eError) {
448 return GetHexU8(255);
453 size_t StringExtractorGDBRemote::GetEscapedBinaryData(std::string &str) {
454 // Just get the data bytes in the string as
455 // GDBRemoteCommunication::CheckForPacket()
456 // already removes any 0x7d escaped characters. If any 0x7d characters are
458 // the packet, then they are supposed to be there...
460 const size_t bytes_left = GetBytesLeft();
461 if (bytes_left > 0) {
462 str.assign(m_packet, m_index, bytes_left);
463 m_index += bytes_left;
469 OKErrorNotSupportedResponseValidator(void *,
470 const StringExtractorGDBRemote &response) {
471 switch (response.GetResponseType()) {
472 case StringExtractorGDBRemote::eOK:
473 case StringExtractorGDBRemote::eError:
474 case StringExtractorGDBRemote::eUnsupported:
477 case StringExtractorGDBRemote::eAck:
478 case StringExtractorGDBRemote::eNack:
479 case StringExtractorGDBRemote::eResponse:
485 static bool JSONResponseValidator(void *,
486 const StringExtractorGDBRemote &response) {
487 switch (response.GetResponseType()) {
488 case StringExtractorGDBRemote::eUnsupported:
489 case StringExtractorGDBRemote::eError:
490 return true; // Accept unsupported or EXX as valid responses
492 case StringExtractorGDBRemote::eOK:
493 case StringExtractorGDBRemote::eAck:
494 case StringExtractorGDBRemote::eNack:
497 case StringExtractorGDBRemote::eResponse:
498 // JSON that is returned in from JSON query packets is currently always
499 // either a dictionary which starts with a '{', or an array which
500 // starts with a '['. This is a quick validator to just make sure the
501 // response could be valid JSON without having to validate all of the
503 switch (response.GetStringRef()[0]) {
517 ASCIIHexBytesResponseValidator(void *,
518 const StringExtractorGDBRemote &response) {
519 switch (response.GetResponseType()) {
520 case StringExtractorGDBRemote::eUnsupported:
521 case StringExtractorGDBRemote::eError:
522 return true; // Accept unsupported or EXX as valid responses
524 case StringExtractorGDBRemote::eOK:
525 case StringExtractorGDBRemote::eAck:
526 case StringExtractorGDBRemote::eNack:
529 case StringExtractorGDBRemote::eResponse: {
530 uint32_t valid_count = 0;
531 for (const char ch : response.GetStringRef()) {
535 if (++valid_count >= 16)
536 break; // Don't validate all the characters in case the packet is very
545 void StringExtractorGDBRemote::CopyResponseValidator(
546 const StringExtractorGDBRemote &rhs) {
547 m_validator = rhs.m_validator;
548 m_validator_baton = rhs.m_validator_baton;
551 void StringExtractorGDBRemote::SetResponseValidator(
552 ResponseValidatorCallback callback, void *baton) {
553 m_validator = callback;
554 m_validator_baton = baton;
557 void StringExtractorGDBRemote::SetResponseValidatorToOKErrorNotSupported() {
558 m_validator = OKErrorNotSupportedResponseValidator;
559 m_validator_baton = nullptr;
562 void StringExtractorGDBRemote::SetResponseValidatorToASCIIHexBytes() {
563 m_validator = ASCIIHexBytesResponseValidator;
564 m_validator_baton = nullptr;
567 void StringExtractorGDBRemote::SetResponseValidatorToJSON() {
568 m_validator = JSONResponseValidator;
569 m_validator_baton = nullptr;
572 bool StringExtractorGDBRemote::ValidateResponse() const {
573 // If we have a validator callback, try to validate the callback
575 return m_validator(m_validator_baton, *this);
577 return true; // No validator, so response is valid