1 //===-- GDBRemoteCommunicationServerCommon.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 "GDBRemoteCommunicationServerCommon.h" 10 11 #include <cerrno> 12 13 #ifdef __APPLE__ 14 #include <TargetConditionals.h> 15 #endif 16 17 #include <chrono> 18 #include <cstring> 19 20 #include "lldb/Core/ModuleSpec.h" 21 #include "lldb/Host/Config.h" 22 #include "lldb/Host/File.h" 23 #include "lldb/Host/FileAction.h" 24 #include "lldb/Host/FileSystem.h" 25 #include "lldb/Host/Host.h" 26 #include "lldb/Host/HostInfo.h" 27 #include "lldb/Host/SafeMachO.h" 28 #include "lldb/Interpreter/OptionArgParser.h" 29 #include "lldb/Symbol/ObjectFile.h" 30 #include "lldb/Target/Platform.h" 31 #include "lldb/Utility/Endian.h" 32 #include "lldb/Utility/GDBRemote.h" 33 #include "lldb/Utility/Log.h" 34 #include "lldb/Utility/StreamString.h" 35 #include "lldb/Utility/StructuredData.h" 36 #include "llvm/ADT/StringSwitch.h" 37 #include "llvm/ADT/Triple.h" 38 #include "llvm/Support/JSON.h" 39 40 #include "ProcessGDBRemoteLog.h" 41 #include "lldb/Utility/StringExtractorGDBRemote.h" 42 43 #ifdef __ANDROID__ 44 #include "lldb/Host/android/HostInfoAndroid.h" 45 #endif 46 47 48 using namespace lldb; 49 using namespace lldb_private::process_gdb_remote; 50 using namespace lldb_private; 51 52 #ifdef __ANDROID__ 53 const static uint32_t g_default_packet_timeout_sec = 20; // seconds 54 #else 55 const static uint32_t g_default_packet_timeout_sec = 0; // not specified 56 #endif 57 58 // GDBRemoteCommunicationServerCommon constructor 59 GDBRemoteCommunicationServerCommon::GDBRemoteCommunicationServerCommon( 60 const char *comm_name, const char *listener_name) 61 : GDBRemoteCommunicationServer(comm_name, listener_name), 62 m_process_launch_info(), m_process_launch_error(), m_proc_infos(), 63 m_proc_infos_index(0) { 64 RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_A, 65 &GDBRemoteCommunicationServerCommon::Handle_A); 66 RegisterMemberFunctionHandler( 67 StringExtractorGDBRemote::eServerPacketType_QEnvironment, 68 &GDBRemoteCommunicationServerCommon::Handle_QEnvironment); 69 RegisterMemberFunctionHandler( 70 StringExtractorGDBRemote::eServerPacketType_QEnvironmentHexEncoded, 71 &GDBRemoteCommunicationServerCommon::Handle_QEnvironmentHexEncoded); 72 RegisterMemberFunctionHandler( 73 StringExtractorGDBRemote::eServerPacketType_qfProcessInfo, 74 &GDBRemoteCommunicationServerCommon::Handle_qfProcessInfo); 75 RegisterMemberFunctionHandler( 76 StringExtractorGDBRemote::eServerPacketType_qGroupName, 77 &GDBRemoteCommunicationServerCommon::Handle_qGroupName); 78 RegisterMemberFunctionHandler( 79 StringExtractorGDBRemote::eServerPacketType_qHostInfo, 80 &GDBRemoteCommunicationServerCommon::Handle_qHostInfo); 81 RegisterMemberFunctionHandler( 82 StringExtractorGDBRemote::eServerPacketType_QLaunchArch, 83 &GDBRemoteCommunicationServerCommon::Handle_QLaunchArch); 84 RegisterMemberFunctionHandler( 85 StringExtractorGDBRemote::eServerPacketType_qLaunchSuccess, 86 &GDBRemoteCommunicationServerCommon::Handle_qLaunchSuccess); 87 RegisterMemberFunctionHandler( 88 StringExtractorGDBRemote::eServerPacketType_qEcho, 89 &GDBRemoteCommunicationServerCommon::Handle_qEcho); 90 RegisterMemberFunctionHandler( 91 StringExtractorGDBRemote::eServerPacketType_qModuleInfo, 92 &GDBRemoteCommunicationServerCommon::Handle_qModuleInfo); 93 RegisterMemberFunctionHandler( 94 StringExtractorGDBRemote::eServerPacketType_jModulesInfo, 95 &GDBRemoteCommunicationServerCommon::Handle_jModulesInfo); 96 RegisterMemberFunctionHandler( 97 StringExtractorGDBRemote::eServerPacketType_qPlatform_chmod, 98 &GDBRemoteCommunicationServerCommon::Handle_qPlatform_chmod); 99 RegisterMemberFunctionHandler( 100 StringExtractorGDBRemote::eServerPacketType_qPlatform_mkdir, 101 &GDBRemoteCommunicationServerCommon::Handle_qPlatform_mkdir); 102 RegisterMemberFunctionHandler( 103 StringExtractorGDBRemote::eServerPacketType_qPlatform_shell, 104 &GDBRemoteCommunicationServerCommon::Handle_qPlatform_shell); 105 RegisterMemberFunctionHandler( 106 StringExtractorGDBRemote::eServerPacketType_qProcessInfoPID, 107 &GDBRemoteCommunicationServerCommon::Handle_qProcessInfoPID); 108 RegisterMemberFunctionHandler( 109 StringExtractorGDBRemote::eServerPacketType_QSetDetachOnError, 110 &GDBRemoteCommunicationServerCommon::Handle_QSetDetachOnError); 111 RegisterMemberFunctionHandler( 112 StringExtractorGDBRemote::eServerPacketType_QSetSTDERR, 113 &GDBRemoteCommunicationServerCommon::Handle_QSetSTDERR); 114 RegisterMemberFunctionHandler( 115 StringExtractorGDBRemote::eServerPacketType_QSetSTDIN, 116 &GDBRemoteCommunicationServerCommon::Handle_QSetSTDIN); 117 RegisterMemberFunctionHandler( 118 StringExtractorGDBRemote::eServerPacketType_QSetSTDOUT, 119 &GDBRemoteCommunicationServerCommon::Handle_QSetSTDOUT); 120 RegisterMemberFunctionHandler( 121 StringExtractorGDBRemote::eServerPacketType_qSpeedTest, 122 &GDBRemoteCommunicationServerCommon::Handle_qSpeedTest); 123 RegisterMemberFunctionHandler( 124 StringExtractorGDBRemote::eServerPacketType_qsProcessInfo, 125 &GDBRemoteCommunicationServerCommon::Handle_qsProcessInfo); 126 RegisterMemberFunctionHandler( 127 StringExtractorGDBRemote::eServerPacketType_QStartNoAckMode, 128 &GDBRemoteCommunicationServerCommon::Handle_QStartNoAckMode); 129 RegisterMemberFunctionHandler( 130 StringExtractorGDBRemote::eServerPacketType_qSupported, 131 &GDBRemoteCommunicationServerCommon::Handle_qSupported); 132 RegisterMemberFunctionHandler( 133 StringExtractorGDBRemote::eServerPacketType_qUserName, 134 &GDBRemoteCommunicationServerCommon::Handle_qUserName); 135 RegisterMemberFunctionHandler( 136 StringExtractorGDBRemote::eServerPacketType_vFile_close, 137 &GDBRemoteCommunicationServerCommon::Handle_vFile_Close); 138 RegisterMemberFunctionHandler( 139 StringExtractorGDBRemote::eServerPacketType_vFile_exists, 140 &GDBRemoteCommunicationServerCommon::Handle_vFile_Exists); 141 RegisterMemberFunctionHandler( 142 StringExtractorGDBRemote::eServerPacketType_vFile_md5, 143 &GDBRemoteCommunicationServerCommon::Handle_vFile_MD5); 144 RegisterMemberFunctionHandler( 145 StringExtractorGDBRemote::eServerPacketType_vFile_mode, 146 &GDBRemoteCommunicationServerCommon::Handle_vFile_Mode); 147 RegisterMemberFunctionHandler( 148 StringExtractorGDBRemote::eServerPacketType_vFile_open, 149 &GDBRemoteCommunicationServerCommon::Handle_vFile_Open); 150 RegisterMemberFunctionHandler( 151 StringExtractorGDBRemote::eServerPacketType_vFile_pread, 152 &GDBRemoteCommunicationServerCommon::Handle_vFile_pRead); 153 RegisterMemberFunctionHandler( 154 StringExtractorGDBRemote::eServerPacketType_vFile_pwrite, 155 &GDBRemoteCommunicationServerCommon::Handle_vFile_pWrite); 156 RegisterMemberFunctionHandler( 157 StringExtractorGDBRemote::eServerPacketType_vFile_size, 158 &GDBRemoteCommunicationServerCommon::Handle_vFile_Size); 159 RegisterMemberFunctionHandler( 160 StringExtractorGDBRemote::eServerPacketType_vFile_fstat, 161 &GDBRemoteCommunicationServerCommon::Handle_vFile_FStat); 162 RegisterMemberFunctionHandler( 163 StringExtractorGDBRemote::eServerPacketType_vFile_stat, 164 &GDBRemoteCommunicationServerCommon::Handle_vFile_Stat); 165 RegisterMemberFunctionHandler( 166 StringExtractorGDBRemote::eServerPacketType_vFile_symlink, 167 &GDBRemoteCommunicationServerCommon::Handle_vFile_symlink); 168 RegisterMemberFunctionHandler( 169 StringExtractorGDBRemote::eServerPacketType_vFile_unlink, 170 &GDBRemoteCommunicationServerCommon::Handle_vFile_unlink); 171 } 172 173 // Destructor 174 GDBRemoteCommunicationServerCommon::~GDBRemoteCommunicationServerCommon() = 175 default; 176 177 GDBRemoteCommunication::PacketResult 178 GDBRemoteCommunicationServerCommon::Handle_qHostInfo( 179 StringExtractorGDBRemote &packet) { 180 StreamString response; 181 182 // $cputype:16777223;cpusubtype:3;ostype:Darwin;vendor:apple;endian:little;ptrsize:8;#00 183 184 ArchSpec host_arch(HostInfo::GetArchitecture()); 185 const llvm::Triple &host_triple = host_arch.GetTriple(); 186 response.PutCString("triple:"); 187 response.PutStringAsRawHex8(host_triple.getTriple()); 188 response.Printf(";ptrsize:%u;", host_arch.GetAddressByteSize()); 189 190 const char *distribution_id = host_arch.GetDistributionId().AsCString(); 191 if (distribution_id) { 192 response.PutCString("distribution_id:"); 193 response.PutStringAsRawHex8(distribution_id); 194 response.PutCString(";"); 195 } 196 197 #if defined(__APPLE__) 198 // For parity with debugserver, we'll include the vendor key. 199 response.PutCString("vendor:apple;"); 200 201 // Send out MachO info. 202 uint32_t cpu = host_arch.GetMachOCPUType(); 203 uint32_t sub = host_arch.GetMachOCPUSubType(); 204 if (cpu != LLDB_INVALID_CPUTYPE) 205 response.Printf("cputype:%u;", cpu); 206 if (sub != LLDB_INVALID_CPUTYPE) 207 response.Printf("cpusubtype:%u;", sub); 208 209 if (cpu == llvm::MachO::CPU_TYPE_ARM || cpu == llvm::MachO::CPU_TYPE_ARM64) { 210 // Indicate the OS type. 211 #if defined(TARGET_OS_TV) && TARGET_OS_TV == 1 212 response.PutCString("ostype:tvos;"); 213 #elif defined(TARGET_OS_WATCH) && TARGET_OS_WATCH == 1 214 response.PutCString("ostype:watchos;"); 215 #elif defined(TARGET_OS_BRIDGE) && TARGET_OS_BRIDGE == 1 216 response.PutCString("ostype:bridgeos;"); 217 #else 218 response.PutCString("ostype:ios;"); 219 #endif 220 221 // On arm, we use "synchronous" watchpoints which means the exception is 222 // delivered before the instruction executes. 223 response.PutCString("watchpoint_exceptions_received:before;"); 224 } else { 225 response.PutCString("ostype:macosx;"); 226 response.Printf("watchpoint_exceptions_received:after;"); 227 } 228 229 #else 230 if (host_arch.GetMachine() == llvm::Triple::aarch64 || 231 host_arch.GetMachine() == llvm::Triple::aarch64_32 || 232 host_arch.GetMachine() == llvm::Triple::aarch64_be || 233 host_arch.GetMachine() == llvm::Triple::arm || 234 host_arch.GetMachine() == llvm::Triple::armeb || host_arch.IsMIPS()) 235 response.Printf("watchpoint_exceptions_received:before;"); 236 else 237 response.Printf("watchpoint_exceptions_received:after;"); 238 #endif 239 240 switch (endian::InlHostByteOrder()) { 241 case eByteOrderBig: 242 response.PutCString("endian:big;"); 243 break; 244 case eByteOrderLittle: 245 response.PutCString("endian:little;"); 246 break; 247 case eByteOrderPDP: 248 response.PutCString("endian:pdp;"); 249 break; 250 default: 251 response.PutCString("endian:unknown;"); 252 break; 253 } 254 255 llvm::VersionTuple version = HostInfo::GetOSVersion(); 256 if (!version.empty()) { 257 response.Format("os_version:{0}", version.getAsString()); 258 response.PutChar(';'); 259 } 260 261 #if defined(__APPLE__) 262 llvm::VersionTuple maccatalyst_version = HostInfo::GetMacCatalystVersion(); 263 if (!maccatalyst_version.empty()) { 264 response.Format("maccatalyst_version:{0}", 265 maccatalyst_version.getAsString()); 266 response.PutChar(';'); 267 } 268 #endif 269 270 std::string s; 271 if (HostInfo::GetOSBuildString(s)) { 272 response.PutCString("os_build:"); 273 response.PutStringAsRawHex8(s); 274 response.PutChar(';'); 275 } 276 if (HostInfo::GetOSKernelDescription(s)) { 277 response.PutCString("os_kernel:"); 278 response.PutStringAsRawHex8(s); 279 response.PutChar(';'); 280 } 281 282 #if defined(__APPLE__) 283 284 #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) 285 // For iOS devices, we are connected through a USB Mux so we never pretend to 286 // actually have a hostname as far as the remote lldb that is connecting to 287 // this lldb-platform is concerned 288 response.PutCString("hostname:"); 289 response.PutStringAsRawHex8("127.0.0.1"); 290 response.PutChar(';'); 291 #else // #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) 292 if (HostInfo::GetHostname(s)) { 293 response.PutCString("hostname:"); 294 response.PutStringAsRawHex8(s); 295 response.PutChar(';'); 296 } 297 #endif // #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) 298 299 #else // #if defined(__APPLE__) 300 if (HostInfo::GetHostname(s)) { 301 response.PutCString("hostname:"); 302 response.PutStringAsRawHex8(s); 303 response.PutChar(';'); 304 } 305 #endif // #if defined(__APPLE__) 306 307 if (g_default_packet_timeout_sec > 0) 308 response.Printf("default_packet_timeout:%u;", g_default_packet_timeout_sec); 309 310 return SendPacketNoLock(response.GetString()); 311 } 312 313 GDBRemoteCommunication::PacketResult 314 GDBRemoteCommunicationServerCommon::Handle_qProcessInfoPID( 315 StringExtractorGDBRemote &packet) { 316 // Packet format: "qProcessInfoPID:%i" where %i is the pid 317 packet.SetFilePos(::strlen("qProcessInfoPID:")); 318 lldb::pid_t pid = packet.GetU32(LLDB_INVALID_PROCESS_ID); 319 if (pid != LLDB_INVALID_PROCESS_ID) { 320 ProcessInstanceInfo proc_info; 321 if (Host::GetProcessInfo(pid, proc_info)) { 322 StreamString response; 323 CreateProcessInfoResponse(proc_info, response); 324 return SendPacketNoLock(response.GetString()); 325 } 326 } 327 return SendErrorResponse(1); 328 } 329 330 GDBRemoteCommunication::PacketResult 331 GDBRemoteCommunicationServerCommon::Handle_qfProcessInfo( 332 StringExtractorGDBRemote &packet) { 333 m_proc_infos_index = 0; 334 m_proc_infos.clear(); 335 336 ProcessInstanceInfoMatch match_info; 337 packet.SetFilePos(::strlen("qfProcessInfo")); 338 if (packet.GetChar() == ':') { 339 llvm::StringRef key; 340 llvm::StringRef value; 341 while (packet.GetNameColonValue(key, value)) { 342 bool success = true; 343 if (key.equals("name")) { 344 StringExtractor extractor(value); 345 std::string file; 346 extractor.GetHexByteString(file); 347 match_info.GetProcessInfo().GetExecutableFile().SetFile( 348 file, FileSpec::Style::native); 349 } else if (key.equals("name_match")) { 350 NameMatch name_match = llvm::StringSwitch<NameMatch>(value) 351 .Case("equals", NameMatch::Equals) 352 .Case("starts_with", NameMatch::StartsWith) 353 .Case("ends_with", NameMatch::EndsWith) 354 .Case("contains", NameMatch::Contains) 355 .Case("regex", NameMatch::RegularExpression) 356 .Default(NameMatch::Ignore); 357 match_info.SetNameMatchType(name_match); 358 if (name_match == NameMatch::Ignore) 359 return SendErrorResponse(2); 360 } else if (key.equals("pid")) { 361 lldb::pid_t pid = LLDB_INVALID_PROCESS_ID; 362 if (value.getAsInteger(0, pid)) 363 return SendErrorResponse(2); 364 match_info.GetProcessInfo().SetProcessID(pid); 365 } else if (key.equals("parent_pid")) { 366 lldb::pid_t pid = LLDB_INVALID_PROCESS_ID; 367 if (value.getAsInteger(0, pid)) 368 return SendErrorResponse(2); 369 match_info.GetProcessInfo().SetParentProcessID(pid); 370 } else if (key.equals("uid")) { 371 uint32_t uid = UINT32_MAX; 372 if (value.getAsInteger(0, uid)) 373 return SendErrorResponse(2); 374 match_info.GetProcessInfo().SetUserID(uid); 375 } else if (key.equals("gid")) { 376 uint32_t gid = UINT32_MAX; 377 if (value.getAsInteger(0, gid)) 378 return SendErrorResponse(2); 379 match_info.GetProcessInfo().SetGroupID(gid); 380 } else if (key.equals("euid")) { 381 uint32_t uid = UINT32_MAX; 382 if (value.getAsInteger(0, uid)) 383 return SendErrorResponse(2); 384 match_info.GetProcessInfo().SetEffectiveUserID(uid); 385 } else if (key.equals("egid")) { 386 uint32_t gid = UINT32_MAX; 387 if (value.getAsInteger(0, gid)) 388 return SendErrorResponse(2); 389 match_info.GetProcessInfo().SetEffectiveGroupID(gid); 390 } else if (key.equals("all_users")) { 391 match_info.SetMatchAllUsers( 392 OptionArgParser::ToBoolean(value, false, &success)); 393 } else if (key.equals("triple")) { 394 match_info.GetProcessInfo().GetArchitecture() = 395 HostInfo::GetAugmentedArchSpec(value); 396 } else { 397 success = false; 398 } 399 400 if (!success) 401 return SendErrorResponse(2); 402 } 403 } 404 405 if (Host::FindProcesses(match_info, m_proc_infos)) { 406 // We found something, return the first item by calling the get subsequent 407 // process info packet handler... 408 return Handle_qsProcessInfo(packet); 409 } 410 return SendErrorResponse(3); 411 } 412 413 GDBRemoteCommunication::PacketResult 414 GDBRemoteCommunicationServerCommon::Handle_qsProcessInfo( 415 StringExtractorGDBRemote &packet) { 416 if (m_proc_infos_index < m_proc_infos.size()) { 417 StreamString response; 418 CreateProcessInfoResponse(m_proc_infos[m_proc_infos_index], response); 419 ++m_proc_infos_index; 420 return SendPacketNoLock(response.GetString()); 421 } 422 return SendErrorResponse(4); 423 } 424 425 GDBRemoteCommunication::PacketResult 426 GDBRemoteCommunicationServerCommon::Handle_qUserName( 427 StringExtractorGDBRemote &packet) { 428 #if LLDB_ENABLE_POSIX 429 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS)); 430 LLDB_LOGF(log, "GDBRemoteCommunicationServerCommon::%s begin", __FUNCTION__); 431 432 // Packet format: "qUserName:%i" where %i is the uid 433 packet.SetFilePos(::strlen("qUserName:")); 434 uint32_t uid = packet.GetU32(UINT32_MAX); 435 if (uid != UINT32_MAX) { 436 if (llvm::Optional<llvm::StringRef> name = 437 HostInfo::GetUserIDResolver().GetUserName(uid)) { 438 StreamString response; 439 response.PutStringAsRawHex8(*name); 440 return SendPacketNoLock(response.GetString()); 441 } 442 } 443 LLDB_LOGF(log, "GDBRemoteCommunicationServerCommon::%s end", __FUNCTION__); 444 #endif 445 return SendErrorResponse(5); 446 } 447 448 GDBRemoteCommunication::PacketResult 449 GDBRemoteCommunicationServerCommon::Handle_qGroupName( 450 StringExtractorGDBRemote &packet) { 451 #if LLDB_ENABLE_POSIX 452 // Packet format: "qGroupName:%i" where %i is the gid 453 packet.SetFilePos(::strlen("qGroupName:")); 454 uint32_t gid = packet.GetU32(UINT32_MAX); 455 if (gid != UINT32_MAX) { 456 if (llvm::Optional<llvm::StringRef> name = 457 HostInfo::GetUserIDResolver().GetGroupName(gid)) { 458 StreamString response; 459 response.PutStringAsRawHex8(*name); 460 return SendPacketNoLock(response.GetString()); 461 } 462 } 463 #endif 464 return SendErrorResponse(6); 465 } 466 467 GDBRemoteCommunication::PacketResult 468 GDBRemoteCommunicationServerCommon::Handle_qSpeedTest( 469 StringExtractorGDBRemote &packet) { 470 packet.SetFilePos(::strlen("qSpeedTest:")); 471 472 llvm::StringRef key; 473 llvm::StringRef value; 474 bool success = packet.GetNameColonValue(key, value); 475 if (success && key.equals("response_size")) { 476 uint32_t response_size = 0; 477 if (!value.getAsInteger(0, response_size)) { 478 if (response_size == 0) 479 return SendOKResponse(); 480 StreamString response; 481 uint32_t bytes_left = response_size; 482 response.PutCString("data:"); 483 while (bytes_left > 0) { 484 if (bytes_left >= 26) { 485 response.PutCString("ABCDEFGHIJKLMNOPQRSTUVWXYZ"); 486 bytes_left -= 26; 487 } else { 488 response.Printf("%*.*s;", bytes_left, bytes_left, 489 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"); 490 bytes_left = 0; 491 } 492 } 493 return SendPacketNoLock(response.GetString()); 494 } 495 } 496 return SendErrorResponse(7); 497 } 498 499 GDBRemoteCommunication::PacketResult 500 GDBRemoteCommunicationServerCommon::Handle_vFile_Open( 501 StringExtractorGDBRemote &packet) { 502 packet.SetFilePos(::strlen("vFile:open:")); 503 std::string path; 504 packet.GetHexByteStringTerminatedBy(path, ','); 505 if (!path.empty()) { 506 if (packet.GetChar() == ',') { 507 auto flags = File::OpenOptions(packet.GetHexMaxU32(false, 0)); 508 if (packet.GetChar() == ',') { 509 mode_t mode = packet.GetHexMaxU32(false, 0600); 510 FileSpec path_spec(path); 511 FileSystem::Instance().Resolve(path_spec); 512 // Do not close fd. 513 auto file = FileSystem::Instance().Open(path_spec, flags, mode, false); 514 515 StreamString response; 516 response.PutChar('F'); 517 518 int descriptor = File::kInvalidDescriptor; 519 if (file) { 520 descriptor = file.get()->GetDescriptor(); 521 response.Printf("%x", descriptor); 522 } else { 523 response.PutCString("-1"); 524 std::error_code code = errorToErrorCode(file.takeError()); 525 if (code.category() == std::system_category()) { 526 response.Printf(",%x", code.value()); 527 } 528 } 529 530 return SendPacketNoLock(response.GetString()); 531 } 532 } 533 } 534 return SendErrorResponse(18); 535 } 536 537 GDBRemoteCommunication::PacketResult 538 GDBRemoteCommunicationServerCommon::Handle_vFile_Close( 539 StringExtractorGDBRemote &packet) { 540 packet.SetFilePos(::strlen("vFile:close:")); 541 int fd = packet.GetS32(-1, 16); 542 int err = -1; 543 int save_errno = 0; 544 if (fd >= 0) { 545 NativeFile file(fd, File::OpenOptions(0), true); 546 Status error = file.Close(); 547 err = 0; 548 save_errno = error.GetError(); 549 } else { 550 save_errno = EINVAL; 551 } 552 StreamString response; 553 response.PutChar('F'); 554 response.Printf("%x", err); 555 if (save_errno) 556 response.Printf(",%x", save_errno); 557 return SendPacketNoLock(response.GetString()); 558 } 559 560 GDBRemoteCommunication::PacketResult 561 GDBRemoteCommunicationServerCommon::Handle_vFile_pRead( 562 StringExtractorGDBRemote &packet) { 563 StreamGDBRemote response; 564 packet.SetFilePos(::strlen("vFile:pread:")); 565 int fd = packet.GetS32(-1, 16); 566 if (packet.GetChar() == ',') { 567 size_t count = packet.GetHexMaxU64(false, SIZE_MAX); 568 if (packet.GetChar() == ',') { 569 off_t offset = packet.GetHexMaxU32(false, UINT32_MAX); 570 if (count == SIZE_MAX) { 571 response.Printf("F-1:%x", EINVAL); 572 return SendPacketNoLock(response.GetString()); 573 } 574 575 std::string buffer(count, 0); 576 NativeFile file(fd, File::eOpenOptionReadOnly, false); 577 Status error = file.Read(static_cast<void *>(&buffer[0]), count, offset); 578 const int save_errno = error.GetError(); 579 response.PutChar('F'); 580 if (error.Success()) { 581 response.Printf("%zx", count); 582 response.PutChar(';'); 583 response.PutEscapedBytes(&buffer[0], count); 584 } else { 585 response.PutCString("-1"); 586 if (save_errno) 587 response.Printf(",%x", save_errno); 588 } 589 return SendPacketNoLock(response.GetString()); 590 } 591 } 592 return SendErrorResponse(21); 593 } 594 595 GDBRemoteCommunication::PacketResult 596 GDBRemoteCommunicationServerCommon::Handle_vFile_pWrite( 597 StringExtractorGDBRemote &packet) { 598 packet.SetFilePos(::strlen("vFile:pwrite:")); 599 600 StreamGDBRemote response; 601 response.PutChar('F'); 602 603 int fd = packet.GetS32(-1, 16); 604 if (packet.GetChar() == ',') { 605 off_t offset = packet.GetHexMaxU32(false, UINT32_MAX); 606 if (packet.GetChar() == ',') { 607 std::string buffer; 608 if (packet.GetEscapedBinaryData(buffer)) { 609 NativeFile file(fd, File::eOpenOptionWriteOnly, false); 610 size_t count = buffer.size(); 611 Status error = 612 file.Write(static_cast<const void *>(&buffer[0]), count, offset); 613 const int save_errno = error.GetError(); 614 if (error.Success()) 615 response.Printf("%zx", count); 616 else { 617 response.PutCString("-1"); 618 if (save_errno) 619 response.Printf(",%x", save_errno); 620 } 621 } else { 622 response.Printf("-1,%x", EINVAL); 623 } 624 return SendPacketNoLock(response.GetString()); 625 } 626 } 627 return SendErrorResponse(27); 628 } 629 630 GDBRemoteCommunication::PacketResult 631 GDBRemoteCommunicationServerCommon::Handle_vFile_Size( 632 StringExtractorGDBRemote &packet) { 633 packet.SetFilePos(::strlen("vFile:size:")); 634 std::string path; 635 packet.GetHexByteString(path); 636 if (!path.empty()) { 637 uint64_t Size; 638 if (llvm::sys::fs::file_size(path, Size)) 639 return SendErrorResponse(5); 640 StreamString response; 641 response.PutChar('F'); 642 response.PutHex64(Size); 643 if (Size == UINT64_MAX) { 644 response.PutChar(','); 645 response.PutHex64(Size); // TODO: replace with Host::GetSyswideErrorCode() 646 } 647 return SendPacketNoLock(response.GetString()); 648 } 649 return SendErrorResponse(22); 650 } 651 652 GDBRemoteCommunication::PacketResult 653 GDBRemoteCommunicationServerCommon::Handle_vFile_Mode( 654 StringExtractorGDBRemote &packet) { 655 packet.SetFilePos(::strlen("vFile:mode:")); 656 std::string path; 657 packet.GetHexByteString(path); 658 if (!path.empty()) { 659 FileSpec file_spec(path); 660 FileSystem::Instance().Resolve(file_spec); 661 std::error_code ec; 662 const uint32_t mode = FileSystem::Instance().GetPermissions(file_spec, ec); 663 StreamString response; 664 if (mode != llvm::sys::fs::perms_not_known) 665 response.Printf("F%x", mode); 666 else 667 response.Printf("F-1,%x", (int)Status(ec).GetError()); 668 return SendPacketNoLock(response.GetString()); 669 } 670 return SendErrorResponse(23); 671 } 672 673 GDBRemoteCommunication::PacketResult 674 GDBRemoteCommunicationServerCommon::Handle_vFile_Exists( 675 StringExtractorGDBRemote &packet) { 676 packet.SetFilePos(::strlen("vFile:exists:")); 677 std::string path; 678 packet.GetHexByteString(path); 679 if (!path.empty()) { 680 bool retcode = llvm::sys::fs::exists(path); 681 StreamString response; 682 response.PutChar('F'); 683 response.PutChar(','); 684 if (retcode) 685 response.PutChar('1'); 686 else 687 response.PutChar('0'); 688 return SendPacketNoLock(response.GetString()); 689 } 690 return SendErrorResponse(24); 691 } 692 693 GDBRemoteCommunication::PacketResult 694 GDBRemoteCommunicationServerCommon::Handle_vFile_symlink( 695 StringExtractorGDBRemote &packet) { 696 packet.SetFilePos(::strlen("vFile:symlink:")); 697 std::string dst, src; 698 packet.GetHexByteStringTerminatedBy(dst, ','); 699 packet.GetChar(); // Skip ',' char 700 packet.GetHexByteString(src); 701 702 FileSpec src_spec(src); 703 FileSystem::Instance().Resolve(src_spec); 704 Status error = FileSystem::Instance().Symlink(src_spec, FileSpec(dst)); 705 706 StreamString response; 707 response.Printf("F%x,%x", error.GetError(), error.GetError()); 708 return SendPacketNoLock(response.GetString()); 709 } 710 711 GDBRemoteCommunication::PacketResult 712 GDBRemoteCommunicationServerCommon::Handle_vFile_unlink( 713 StringExtractorGDBRemote &packet) { 714 packet.SetFilePos(::strlen("vFile:unlink:")); 715 std::string path; 716 packet.GetHexByteString(path); 717 Status error(llvm::sys::fs::remove(path)); 718 StreamString response; 719 response.Printf("F%x,%x", error.GetError(), error.GetError()); 720 return SendPacketNoLock(response.GetString()); 721 } 722 723 GDBRemoteCommunication::PacketResult 724 GDBRemoteCommunicationServerCommon::Handle_qPlatform_shell( 725 StringExtractorGDBRemote &packet) { 726 packet.SetFilePos(::strlen("qPlatform_shell:")); 727 std::string path; 728 std::string working_dir; 729 packet.GetHexByteStringTerminatedBy(path, ','); 730 if (!path.empty()) { 731 if (packet.GetChar() == ',') { 732 // FIXME: add timeout to qPlatform_shell packet 733 // uint32_t timeout = packet.GetHexMaxU32(false, 32); 734 if (packet.GetChar() == ',') 735 packet.GetHexByteString(working_dir); 736 int status, signo; 737 std::string output; 738 FileSpec working_spec(working_dir); 739 FileSystem::Instance().Resolve(working_spec); 740 Status err = 741 Host::RunShellCommand(path.c_str(), working_spec, &status, &signo, 742 &output, std::chrono::seconds(10)); 743 StreamGDBRemote response; 744 if (err.Fail()) { 745 response.PutCString("F,"); 746 response.PutHex32(UINT32_MAX); 747 } else { 748 response.PutCString("F,"); 749 response.PutHex32(status); 750 response.PutChar(','); 751 response.PutHex32(signo); 752 response.PutChar(','); 753 response.PutEscapedBytes(output.c_str(), output.size()); 754 } 755 return SendPacketNoLock(response.GetString()); 756 } 757 } 758 return SendErrorResponse(24); 759 } 760 761 template <typename T, typename U> 762 static void fill_clamp(T &dest, U src, typename T::value_type fallback) { 763 dest = src <= std::numeric_limits<typename T::value_type>::max() ? src 764 : fallback; 765 } 766 767 GDBRemoteCommunication::PacketResult 768 GDBRemoteCommunicationServerCommon::Handle_vFile_FStat( 769 StringExtractorGDBRemote &packet) { 770 StreamGDBRemote response; 771 packet.SetFilePos(::strlen("vFile:fstat:")); 772 int fd = packet.GetS32(-1, 16); 773 774 struct stat file_stats; 775 if (::fstat(fd, &file_stats) == -1) { 776 const int save_errno = errno; 777 response.Printf("F-1,%x", save_errno); 778 return SendPacketNoLock(response.GetString()); 779 } 780 781 GDBRemoteFStatData data; 782 fill_clamp(data.gdb_st_dev, file_stats.st_dev, 0); 783 fill_clamp(data.gdb_st_ino, file_stats.st_ino, 0); 784 data.gdb_st_mode = file_stats.st_mode; 785 fill_clamp(data.gdb_st_nlink, file_stats.st_nlink, UINT32_MAX); 786 fill_clamp(data.gdb_st_uid, file_stats.st_uid, 0); 787 fill_clamp(data.gdb_st_gid, file_stats.st_gid, 0); 788 fill_clamp(data.gdb_st_rdev, file_stats.st_rdev, 0); 789 data.gdb_st_size = file_stats.st_size; 790 #if !defined(_WIN32) 791 data.gdb_st_blksize = file_stats.st_blksize; 792 data.gdb_st_blocks = file_stats.st_blocks; 793 #else 794 data.gdb_st_blksize = 0; 795 data.gdb_st_blocks = 0; 796 #endif 797 fill_clamp(data.gdb_st_atime, file_stats.st_atime, 0); 798 fill_clamp(data.gdb_st_mtime, file_stats.st_mtime, 0); 799 fill_clamp(data.gdb_st_ctime, file_stats.st_ctime, 0); 800 801 response.Printf("F%zx;", sizeof(data)); 802 response.PutEscapedBytes(&data, sizeof(data)); 803 return SendPacketNoLock(response.GetString()); 804 } 805 806 GDBRemoteCommunication::PacketResult 807 GDBRemoteCommunicationServerCommon::Handle_vFile_Stat( 808 StringExtractorGDBRemote &packet) { 809 return SendUnimplementedResponse( 810 "GDBRemoteCommunicationServerCommon::Handle_vFile_Stat() unimplemented"); 811 } 812 813 GDBRemoteCommunication::PacketResult 814 GDBRemoteCommunicationServerCommon::Handle_vFile_MD5( 815 StringExtractorGDBRemote &packet) { 816 packet.SetFilePos(::strlen("vFile:MD5:")); 817 std::string path; 818 packet.GetHexByteString(path); 819 if (!path.empty()) { 820 StreamGDBRemote response; 821 auto Result = llvm::sys::fs::md5_contents(path); 822 if (!Result) { 823 response.PutCString("F,"); 824 response.PutCString("x"); 825 } else { 826 response.PutCString("F,"); 827 response.PutHex64(Result->low()); 828 response.PutHex64(Result->high()); 829 } 830 return SendPacketNoLock(response.GetString()); 831 } 832 return SendErrorResponse(25); 833 } 834 835 GDBRemoteCommunication::PacketResult 836 GDBRemoteCommunicationServerCommon::Handle_qPlatform_mkdir( 837 StringExtractorGDBRemote &packet) { 838 packet.SetFilePos(::strlen("qPlatform_mkdir:")); 839 mode_t mode = packet.GetHexMaxU32(false, UINT32_MAX); 840 if (packet.GetChar() == ',') { 841 std::string path; 842 packet.GetHexByteString(path); 843 Status error(llvm::sys::fs::create_directory(path, mode)); 844 845 StreamGDBRemote response; 846 response.Printf("F%x", error.GetError()); 847 848 return SendPacketNoLock(response.GetString()); 849 } 850 return SendErrorResponse(20); 851 } 852 853 GDBRemoteCommunication::PacketResult 854 GDBRemoteCommunicationServerCommon::Handle_qPlatform_chmod( 855 StringExtractorGDBRemote &packet) { 856 packet.SetFilePos(::strlen("qPlatform_chmod:")); 857 858 auto perms = 859 static_cast<llvm::sys::fs::perms>(packet.GetHexMaxU32(false, UINT32_MAX)); 860 if (packet.GetChar() == ',') { 861 std::string path; 862 packet.GetHexByteString(path); 863 Status error(llvm::sys::fs::setPermissions(path, perms)); 864 865 StreamGDBRemote response; 866 response.Printf("F%x", error.GetError()); 867 868 return SendPacketNoLock(response.GetString()); 869 } 870 return SendErrorResponse(19); 871 } 872 873 GDBRemoteCommunication::PacketResult 874 GDBRemoteCommunicationServerCommon::Handle_qSupported( 875 StringExtractorGDBRemote &packet) { 876 // Parse client-indicated features. 877 llvm::SmallVector<llvm::StringRef, 4> client_features; 878 packet.GetStringRef().split(client_features, ';'); 879 return SendPacketNoLock(llvm::join(HandleFeatures(client_features), ";")); 880 } 881 882 GDBRemoteCommunication::PacketResult 883 GDBRemoteCommunicationServerCommon::Handle_QSetDetachOnError( 884 StringExtractorGDBRemote &packet) { 885 packet.SetFilePos(::strlen("QSetDetachOnError:")); 886 if (packet.GetU32(0)) 887 m_process_launch_info.GetFlags().Set(eLaunchFlagDetachOnError); 888 else 889 m_process_launch_info.GetFlags().Clear(eLaunchFlagDetachOnError); 890 return SendOKResponse(); 891 } 892 893 GDBRemoteCommunication::PacketResult 894 GDBRemoteCommunicationServerCommon::Handle_QStartNoAckMode( 895 StringExtractorGDBRemote &packet) { 896 // Send response first before changing m_send_acks to we ack this packet 897 PacketResult packet_result = SendOKResponse(); 898 m_send_acks = false; 899 return packet_result; 900 } 901 902 GDBRemoteCommunication::PacketResult 903 GDBRemoteCommunicationServerCommon::Handle_QSetSTDIN( 904 StringExtractorGDBRemote &packet) { 905 packet.SetFilePos(::strlen("QSetSTDIN:")); 906 FileAction file_action; 907 std::string path; 908 packet.GetHexByteString(path); 909 const bool read = true; 910 const bool write = false; 911 if (file_action.Open(STDIN_FILENO, FileSpec(path), read, write)) { 912 m_process_launch_info.AppendFileAction(file_action); 913 return SendOKResponse(); 914 } 915 return SendErrorResponse(15); 916 } 917 918 GDBRemoteCommunication::PacketResult 919 GDBRemoteCommunicationServerCommon::Handle_QSetSTDOUT( 920 StringExtractorGDBRemote &packet) { 921 packet.SetFilePos(::strlen("QSetSTDOUT:")); 922 FileAction file_action; 923 std::string path; 924 packet.GetHexByteString(path); 925 const bool read = false; 926 const bool write = true; 927 if (file_action.Open(STDOUT_FILENO, FileSpec(path), read, write)) { 928 m_process_launch_info.AppendFileAction(file_action); 929 return SendOKResponse(); 930 } 931 return SendErrorResponse(16); 932 } 933 934 GDBRemoteCommunication::PacketResult 935 GDBRemoteCommunicationServerCommon::Handle_QSetSTDERR( 936 StringExtractorGDBRemote &packet) { 937 packet.SetFilePos(::strlen("QSetSTDERR:")); 938 FileAction file_action; 939 std::string path; 940 packet.GetHexByteString(path); 941 const bool read = false; 942 const bool write = true; 943 if (file_action.Open(STDERR_FILENO, FileSpec(path), read, write)) { 944 m_process_launch_info.AppendFileAction(file_action); 945 return SendOKResponse(); 946 } 947 return SendErrorResponse(17); 948 } 949 950 GDBRemoteCommunication::PacketResult 951 GDBRemoteCommunicationServerCommon::Handle_qLaunchSuccess( 952 StringExtractorGDBRemote &packet) { 953 if (m_process_launch_error.Success()) 954 return SendOKResponse(); 955 StreamString response; 956 response.PutChar('E'); 957 response.PutCString(m_process_launch_error.AsCString("<unknown error>")); 958 return SendPacketNoLock(response.GetString()); 959 } 960 961 GDBRemoteCommunication::PacketResult 962 GDBRemoteCommunicationServerCommon::Handle_QEnvironment( 963 StringExtractorGDBRemote &packet) { 964 packet.SetFilePos(::strlen("QEnvironment:")); 965 const uint32_t bytes_left = packet.GetBytesLeft(); 966 if (bytes_left > 0) { 967 m_process_launch_info.GetEnvironment().insert(packet.Peek()); 968 return SendOKResponse(); 969 } 970 return SendErrorResponse(12); 971 } 972 973 GDBRemoteCommunication::PacketResult 974 GDBRemoteCommunicationServerCommon::Handle_QEnvironmentHexEncoded( 975 StringExtractorGDBRemote &packet) { 976 packet.SetFilePos(::strlen("QEnvironmentHexEncoded:")); 977 const uint32_t bytes_left = packet.GetBytesLeft(); 978 if (bytes_left > 0) { 979 std::string str; 980 packet.GetHexByteString(str); 981 m_process_launch_info.GetEnvironment().insert(str); 982 return SendOKResponse(); 983 } 984 return SendErrorResponse(12); 985 } 986 987 GDBRemoteCommunication::PacketResult 988 GDBRemoteCommunicationServerCommon::Handle_QLaunchArch( 989 StringExtractorGDBRemote &packet) { 990 packet.SetFilePos(::strlen("QLaunchArch:")); 991 const uint32_t bytes_left = packet.GetBytesLeft(); 992 if (bytes_left > 0) { 993 const char *arch_triple = packet.Peek(); 994 m_process_launch_info.SetArchitecture( 995 HostInfo::GetAugmentedArchSpec(arch_triple)); 996 return SendOKResponse(); 997 } 998 return SendErrorResponse(13); 999 } 1000 1001 GDBRemoteCommunication::PacketResult 1002 GDBRemoteCommunicationServerCommon::Handle_A(StringExtractorGDBRemote &packet) { 1003 // The 'A' packet is the most over designed packet ever here with redundant 1004 // argument indexes, redundant argument lengths and needed hex encoded 1005 // argument string values. Really all that is needed is a comma separated hex 1006 // encoded argument value list, but we will stay true to the documented 1007 // version of the 'A' packet here... 1008 1009 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS)); 1010 int actual_arg_index = 0; 1011 1012 packet.SetFilePos(1); // Skip the 'A' 1013 bool success = true; 1014 while (success && packet.GetBytesLeft() > 0) { 1015 // Decode the decimal argument string length. This length is the number of 1016 // hex nibbles in the argument string value. 1017 const uint32_t arg_len = packet.GetU32(UINT32_MAX); 1018 if (arg_len == UINT32_MAX) 1019 success = false; 1020 else { 1021 // Make sure the argument hex string length is followed by a comma 1022 if (packet.GetChar() != ',') 1023 success = false; 1024 else { 1025 // Decode the argument index. We ignore this really because who would 1026 // really send down the arguments in a random order??? 1027 const uint32_t arg_idx = packet.GetU32(UINT32_MAX); 1028 if (arg_idx == UINT32_MAX) 1029 success = false; 1030 else { 1031 // Make sure the argument index is followed by a comma 1032 if (packet.GetChar() != ',') 1033 success = false; 1034 else { 1035 // Decode the argument string value from hex bytes back into a UTF8 1036 // string and make sure the length matches the one supplied in the 1037 // packet 1038 std::string arg; 1039 if (packet.GetHexByteStringFixedLength(arg, arg_len) != 1040 (arg_len / 2)) 1041 success = false; 1042 else { 1043 // If there are any bytes left 1044 if (packet.GetBytesLeft()) { 1045 if (packet.GetChar() != ',') 1046 success = false; 1047 } 1048 1049 if (success) { 1050 if (arg_idx == 0) 1051 m_process_launch_info.GetExecutableFile().SetFile( 1052 arg, FileSpec::Style::native); 1053 m_process_launch_info.GetArguments().AppendArgument(arg); 1054 LLDB_LOGF(log, "LLGSPacketHandler::%s added arg %d: \"%s\"", 1055 __FUNCTION__, actual_arg_index, arg.c_str()); 1056 ++actual_arg_index; 1057 } 1058 } 1059 } 1060 } 1061 } 1062 } 1063 } 1064 1065 if (success) { 1066 m_process_launch_error = LaunchProcess(); 1067 if (m_process_launch_error.Success()) 1068 return SendOKResponse(); 1069 LLDB_LOG(log, "failed to launch exe: {0}", m_process_launch_error); 1070 } 1071 return SendErrorResponse(8); 1072 } 1073 1074 GDBRemoteCommunication::PacketResult 1075 GDBRemoteCommunicationServerCommon::Handle_qEcho( 1076 StringExtractorGDBRemote &packet) { 1077 // Just echo back the exact same packet for qEcho... 1078 return SendPacketNoLock(packet.GetStringRef()); 1079 } 1080 1081 GDBRemoteCommunication::PacketResult 1082 GDBRemoteCommunicationServerCommon::Handle_qModuleInfo( 1083 StringExtractorGDBRemote &packet) { 1084 packet.SetFilePos(::strlen("qModuleInfo:")); 1085 1086 std::string module_path; 1087 packet.GetHexByteStringTerminatedBy(module_path, ';'); 1088 if (module_path.empty()) 1089 return SendErrorResponse(1); 1090 1091 if (packet.GetChar() != ';') 1092 return SendErrorResponse(2); 1093 1094 std::string triple; 1095 packet.GetHexByteString(triple); 1096 1097 ModuleSpec matched_module_spec = GetModuleInfo(module_path, triple); 1098 if (!matched_module_spec.GetFileSpec()) 1099 return SendErrorResponse(3); 1100 1101 const auto file_offset = matched_module_spec.GetObjectOffset(); 1102 const auto file_size = matched_module_spec.GetObjectSize(); 1103 const auto uuid_str = matched_module_spec.GetUUID().GetAsString(""); 1104 1105 StreamGDBRemote response; 1106 1107 if (uuid_str.empty()) { 1108 auto Result = llvm::sys::fs::md5_contents( 1109 matched_module_spec.GetFileSpec().GetPath()); 1110 if (!Result) 1111 return SendErrorResponse(5); 1112 response.PutCString("md5:"); 1113 response.PutStringAsRawHex8(Result->digest()); 1114 } else { 1115 response.PutCString("uuid:"); 1116 response.PutStringAsRawHex8(uuid_str); 1117 } 1118 response.PutChar(';'); 1119 1120 const auto &module_arch = matched_module_spec.GetArchitecture(); 1121 response.PutCString("triple:"); 1122 response.PutStringAsRawHex8(module_arch.GetTriple().getTriple()); 1123 response.PutChar(';'); 1124 1125 response.PutCString("file_path:"); 1126 response.PutStringAsRawHex8(matched_module_spec.GetFileSpec().GetCString()); 1127 response.PutChar(';'); 1128 response.PutCString("file_offset:"); 1129 response.PutHex64(file_offset); 1130 response.PutChar(';'); 1131 response.PutCString("file_size:"); 1132 response.PutHex64(file_size); 1133 response.PutChar(';'); 1134 1135 return SendPacketNoLock(response.GetString()); 1136 } 1137 1138 GDBRemoteCommunication::PacketResult 1139 GDBRemoteCommunicationServerCommon::Handle_jModulesInfo( 1140 StringExtractorGDBRemote &packet) { 1141 namespace json = llvm::json; 1142 1143 packet.SetFilePos(::strlen("jModulesInfo:")); 1144 1145 StructuredData::ObjectSP object_sp = StructuredData::ParseJSON(packet.Peek()); 1146 if (!object_sp) 1147 return SendErrorResponse(1); 1148 1149 StructuredData::Array *packet_array = object_sp->GetAsArray(); 1150 if (!packet_array) 1151 return SendErrorResponse(2); 1152 1153 json::Array response_array; 1154 for (size_t i = 0; i < packet_array->GetSize(); ++i) { 1155 StructuredData::Dictionary *query = 1156 packet_array->GetItemAtIndex(i)->GetAsDictionary(); 1157 if (!query) 1158 continue; 1159 llvm::StringRef file, triple; 1160 if (!query->GetValueForKeyAsString("file", file) || 1161 !query->GetValueForKeyAsString("triple", triple)) 1162 continue; 1163 1164 ModuleSpec matched_module_spec = GetModuleInfo(file, triple); 1165 if (!matched_module_spec.GetFileSpec()) 1166 continue; 1167 1168 const auto file_offset = matched_module_spec.GetObjectOffset(); 1169 const auto file_size = matched_module_spec.GetObjectSize(); 1170 const auto uuid_str = matched_module_spec.GetUUID().GetAsString(""); 1171 if (uuid_str.empty()) 1172 continue; 1173 const auto triple_str = 1174 matched_module_spec.GetArchitecture().GetTriple().getTriple(); 1175 const auto file_path = matched_module_spec.GetFileSpec().GetPath(); 1176 1177 json::Object response{{"uuid", uuid_str}, 1178 {"triple", triple_str}, 1179 {"file_path", file_path}, 1180 {"file_offset", static_cast<int64_t>(file_offset)}, 1181 {"file_size", static_cast<int64_t>(file_size)}}; 1182 response_array.push_back(std::move(response)); 1183 } 1184 1185 StreamString response; 1186 response.AsRawOstream() << std::move(response_array); 1187 StreamGDBRemote escaped_response; 1188 escaped_response.PutEscapedBytes(response.GetString().data(), 1189 response.GetSize()); 1190 return SendPacketNoLock(escaped_response.GetString()); 1191 } 1192 1193 void GDBRemoteCommunicationServerCommon::CreateProcessInfoResponse( 1194 const ProcessInstanceInfo &proc_info, StreamString &response) { 1195 response.Printf( 1196 "pid:%" PRIu64 ";ppid:%" PRIu64 ";uid:%i;gid:%i;euid:%i;egid:%i;", 1197 proc_info.GetProcessID(), proc_info.GetParentProcessID(), 1198 proc_info.GetUserID(), proc_info.GetGroupID(), 1199 proc_info.GetEffectiveUserID(), proc_info.GetEffectiveGroupID()); 1200 response.PutCString("name:"); 1201 response.PutStringAsRawHex8(proc_info.GetExecutableFile().GetCString()); 1202 1203 response.PutChar(';'); 1204 response.PutCString("args:"); 1205 response.PutStringAsRawHex8(proc_info.GetArg0()); 1206 for (auto &arg : proc_info.GetArguments()) { 1207 response.PutChar('-'); 1208 response.PutStringAsRawHex8(arg.ref()); 1209 } 1210 1211 response.PutChar(';'); 1212 const ArchSpec &proc_arch = proc_info.GetArchitecture(); 1213 if (proc_arch.IsValid()) { 1214 const llvm::Triple &proc_triple = proc_arch.GetTriple(); 1215 response.PutCString("triple:"); 1216 response.PutStringAsRawHex8(proc_triple.getTriple()); 1217 response.PutChar(';'); 1218 } 1219 } 1220 1221 void GDBRemoteCommunicationServerCommon:: 1222 CreateProcessInfoResponse_DebugServerStyle( 1223 const ProcessInstanceInfo &proc_info, StreamString &response) { 1224 response.Printf("pid:%" PRIx64 ";parent-pid:%" PRIx64 1225 ";real-uid:%x;real-gid:%x;effective-uid:%x;effective-gid:%x;", 1226 proc_info.GetProcessID(), proc_info.GetParentProcessID(), 1227 proc_info.GetUserID(), proc_info.GetGroupID(), 1228 proc_info.GetEffectiveUserID(), 1229 proc_info.GetEffectiveGroupID()); 1230 1231 const ArchSpec &proc_arch = proc_info.GetArchitecture(); 1232 if (proc_arch.IsValid()) { 1233 const llvm::Triple &proc_triple = proc_arch.GetTriple(); 1234 #if defined(__APPLE__) 1235 // We'll send cputype/cpusubtype. 1236 const uint32_t cpu_type = proc_arch.GetMachOCPUType(); 1237 if (cpu_type != 0) 1238 response.Printf("cputype:%" PRIx32 ";", cpu_type); 1239 1240 const uint32_t cpu_subtype = proc_arch.GetMachOCPUSubType(); 1241 if (cpu_subtype != 0) 1242 response.Printf("cpusubtype:%" PRIx32 ";", cpu_subtype); 1243 1244 const std::string vendor = proc_triple.getVendorName().str(); 1245 if (!vendor.empty()) 1246 response.Printf("vendor:%s;", vendor.c_str()); 1247 #else 1248 // We'll send the triple. 1249 response.PutCString("triple:"); 1250 response.PutStringAsRawHex8(proc_triple.getTriple()); 1251 response.PutChar(';'); 1252 #endif 1253 std::string ostype = std::string(proc_triple.getOSName()); 1254 // Adjust so ostype reports ios for Apple/ARM and Apple/ARM64. 1255 if (proc_triple.getVendor() == llvm::Triple::Apple) { 1256 switch (proc_triple.getArch()) { 1257 case llvm::Triple::arm: 1258 case llvm::Triple::thumb: 1259 case llvm::Triple::aarch64: 1260 case llvm::Triple::aarch64_32: 1261 ostype = "ios"; 1262 break; 1263 default: 1264 // No change. 1265 break; 1266 } 1267 } 1268 response.Printf("ostype:%s;", ostype.c_str()); 1269 1270 switch (proc_arch.GetByteOrder()) { 1271 case lldb::eByteOrderLittle: 1272 response.PutCString("endian:little;"); 1273 break; 1274 case lldb::eByteOrderBig: 1275 response.PutCString("endian:big;"); 1276 break; 1277 case lldb::eByteOrderPDP: 1278 response.PutCString("endian:pdp;"); 1279 break; 1280 default: 1281 // Nothing. 1282 break; 1283 } 1284 // In case of MIPS64, pointer size is depend on ELF ABI For N32 the pointer 1285 // size is 4 and for N64 it is 8 1286 std::string abi = proc_arch.GetTargetABI(); 1287 if (!abi.empty()) 1288 response.Printf("elf_abi:%s;", abi.c_str()); 1289 response.Printf("ptrsize:%d;", proc_arch.GetAddressByteSize()); 1290 } 1291 } 1292 1293 FileSpec GDBRemoteCommunicationServerCommon::FindModuleFile( 1294 const std::string &module_path, const ArchSpec &arch) { 1295 #ifdef __ANDROID__ 1296 return HostInfoAndroid::ResolveLibraryPath(module_path, arch); 1297 #else 1298 FileSpec file_spec(module_path); 1299 FileSystem::Instance().Resolve(file_spec); 1300 return file_spec; 1301 #endif 1302 } 1303 1304 ModuleSpec 1305 GDBRemoteCommunicationServerCommon::GetModuleInfo(llvm::StringRef module_path, 1306 llvm::StringRef triple) { 1307 ArchSpec arch(triple); 1308 1309 FileSpec req_module_path_spec(module_path); 1310 FileSystem::Instance().Resolve(req_module_path_spec); 1311 1312 const FileSpec module_path_spec = 1313 FindModuleFile(req_module_path_spec.GetPath(), arch); 1314 const ModuleSpec module_spec(module_path_spec, arch); 1315 1316 ModuleSpecList module_specs; 1317 if (!ObjectFile::GetModuleSpecifications(module_path_spec, 0, 0, 1318 module_specs)) 1319 return ModuleSpec(); 1320 1321 ModuleSpec matched_module_spec; 1322 if (!module_specs.FindMatchingModuleSpec(module_spec, matched_module_spec)) 1323 return ModuleSpec(); 1324 1325 return matched_module_spec; 1326 } 1327 1328 std::vector<std::string> GDBRemoteCommunicationServerCommon::HandleFeatures( 1329 const llvm::ArrayRef<llvm::StringRef> client_features) { 1330 // 128KBytes is a reasonable max packet size--debugger can always use less. 1331 constexpr uint32_t max_packet_size = 128 * 1024; 1332 1333 // Features common to platform server and llgs. 1334 return { 1335 llvm::formatv("PacketSize={0}", max_packet_size), 1336 "QStartNoAckMode+", 1337 "qEcho+", 1338 }; 1339 } 1340