1 //===-- GDBRemoteCommunicationServerCommon.cpp ------------------*- C++ -*-===// 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 <errno.h> 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), m_thread_suffix_supported(false), 64 m_list_threads_in_stop_reply(false) { 65 RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_A, 66 &GDBRemoteCommunicationServerCommon::Handle_A); 67 RegisterMemberFunctionHandler( 68 StringExtractorGDBRemote::eServerPacketType_QEnvironment, 69 &GDBRemoteCommunicationServerCommon::Handle_QEnvironment); 70 RegisterMemberFunctionHandler( 71 StringExtractorGDBRemote::eServerPacketType_QEnvironmentHexEncoded, 72 &GDBRemoteCommunicationServerCommon::Handle_QEnvironmentHexEncoded); 73 RegisterMemberFunctionHandler( 74 StringExtractorGDBRemote::eServerPacketType_qfProcessInfo, 75 &GDBRemoteCommunicationServerCommon::Handle_qfProcessInfo); 76 RegisterMemberFunctionHandler( 77 StringExtractorGDBRemote::eServerPacketType_qGroupName, 78 &GDBRemoteCommunicationServerCommon::Handle_qGroupName); 79 RegisterMemberFunctionHandler( 80 StringExtractorGDBRemote::eServerPacketType_qHostInfo, 81 &GDBRemoteCommunicationServerCommon::Handle_qHostInfo); 82 RegisterMemberFunctionHandler( 83 StringExtractorGDBRemote::eServerPacketType_QLaunchArch, 84 &GDBRemoteCommunicationServerCommon::Handle_QLaunchArch); 85 RegisterMemberFunctionHandler( 86 StringExtractorGDBRemote::eServerPacketType_qLaunchSuccess, 87 &GDBRemoteCommunicationServerCommon::Handle_qLaunchSuccess); 88 RegisterMemberFunctionHandler( 89 StringExtractorGDBRemote::eServerPacketType_QListThreadsInStopReply, 90 &GDBRemoteCommunicationServerCommon::Handle_QListThreadsInStopReply); 91 RegisterMemberFunctionHandler( 92 StringExtractorGDBRemote::eServerPacketType_qEcho, 93 &GDBRemoteCommunicationServerCommon::Handle_qEcho); 94 RegisterMemberFunctionHandler( 95 StringExtractorGDBRemote::eServerPacketType_qModuleInfo, 96 &GDBRemoteCommunicationServerCommon::Handle_qModuleInfo); 97 RegisterMemberFunctionHandler( 98 StringExtractorGDBRemote::eServerPacketType_jModulesInfo, 99 &GDBRemoteCommunicationServerCommon::Handle_jModulesInfo); 100 RegisterMemberFunctionHandler( 101 StringExtractorGDBRemote::eServerPacketType_qPlatform_chmod, 102 &GDBRemoteCommunicationServerCommon::Handle_qPlatform_chmod); 103 RegisterMemberFunctionHandler( 104 StringExtractorGDBRemote::eServerPacketType_qPlatform_mkdir, 105 &GDBRemoteCommunicationServerCommon::Handle_qPlatform_mkdir); 106 RegisterMemberFunctionHandler( 107 StringExtractorGDBRemote::eServerPacketType_qPlatform_shell, 108 &GDBRemoteCommunicationServerCommon::Handle_qPlatform_shell); 109 RegisterMemberFunctionHandler( 110 StringExtractorGDBRemote::eServerPacketType_qProcessInfoPID, 111 &GDBRemoteCommunicationServerCommon::Handle_qProcessInfoPID); 112 RegisterMemberFunctionHandler( 113 StringExtractorGDBRemote::eServerPacketType_QSetDetachOnError, 114 &GDBRemoteCommunicationServerCommon::Handle_QSetDetachOnError); 115 RegisterMemberFunctionHandler( 116 StringExtractorGDBRemote::eServerPacketType_QSetSTDERR, 117 &GDBRemoteCommunicationServerCommon::Handle_QSetSTDERR); 118 RegisterMemberFunctionHandler( 119 StringExtractorGDBRemote::eServerPacketType_QSetSTDIN, 120 &GDBRemoteCommunicationServerCommon::Handle_QSetSTDIN); 121 RegisterMemberFunctionHandler( 122 StringExtractorGDBRemote::eServerPacketType_QSetSTDOUT, 123 &GDBRemoteCommunicationServerCommon::Handle_QSetSTDOUT); 124 RegisterMemberFunctionHandler( 125 StringExtractorGDBRemote::eServerPacketType_qSpeedTest, 126 &GDBRemoteCommunicationServerCommon::Handle_qSpeedTest); 127 RegisterMemberFunctionHandler( 128 StringExtractorGDBRemote::eServerPacketType_qsProcessInfo, 129 &GDBRemoteCommunicationServerCommon::Handle_qsProcessInfo); 130 RegisterMemberFunctionHandler( 131 StringExtractorGDBRemote::eServerPacketType_QStartNoAckMode, 132 &GDBRemoteCommunicationServerCommon::Handle_QStartNoAckMode); 133 RegisterMemberFunctionHandler( 134 StringExtractorGDBRemote::eServerPacketType_qSupported, 135 &GDBRemoteCommunicationServerCommon::Handle_qSupported); 136 RegisterMemberFunctionHandler( 137 StringExtractorGDBRemote::eServerPacketType_QThreadSuffixSupported, 138 &GDBRemoteCommunicationServerCommon::Handle_QThreadSuffixSupported); 139 RegisterMemberFunctionHandler( 140 StringExtractorGDBRemote::eServerPacketType_qUserName, 141 &GDBRemoteCommunicationServerCommon::Handle_qUserName); 142 RegisterMemberFunctionHandler( 143 StringExtractorGDBRemote::eServerPacketType_vFile_close, 144 &GDBRemoteCommunicationServerCommon::Handle_vFile_Close); 145 RegisterMemberFunctionHandler( 146 StringExtractorGDBRemote::eServerPacketType_vFile_exists, 147 &GDBRemoteCommunicationServerCommon::Handle_vFile_Exists); 148 RegisterMemberFunctionHandler( 149 StringExtractorGDBRemote::eServerPacketType_vFile_md5, 150 &GDBRemoteCommunicationServerCommon::Handle_vFile_MD5); 151 RegisterMemberFunctionHandler( 152 StringExtractorGDBRemote::eServerPacketType_vFile_mode, 153 &GDBRemoteCommunicationServerCommon::Handle_vFile_Mode); 154 RegisterMemberFunctionHandler( 155 StringExtractorGDBRemote::eServerPacketType_vFile_open, 156 &GDBRemoteCommunicationServerCommon::Handle_vFile_Open); 157 RegisterMemberFunctionHandler( 158 StringExtractorGDBRemote::eServerPacketType_vFile_pread, 159 &GDBRemoteCommunicationServerCommon::Handle_vFile_pRead); 160 RegisterMemberFunctionHandler( 161 StringExtractorGDBRemote::eServerPacketType_vFile_pwrite, 162 &GDBRemoteCommunicationServerCommon::Handle_vFile_pWrite); 163 RegisterMemberFunctionHandler( 164 StringExtractorGDBRemote::eServerPacketType_vFile_size, 165 &GDBRemoteCommunicationServerCommon::Handle_vFile_Size); 166 RegisterMemberFunctionHandler( 167 StringExtractorGDBRemote::eServerPacketType_vFile_stat, 168 &GDBRemoteCommunicationServerCommon::Handle_vFile_Stat); 169 RegisterMemberFunctionHandler( 170 StringExtractorGDBRemote::eServerPacketType_vFile_symlink, 171 &GDBRemoteCommunicationServerCommon::Handle_vFile_symlink); 172 RegisterMemberFunctionHandler( 173 StringExtractorGDBRemote::eServerPacketType_vFile_unlink, 174 &GDBRemoteCommunicationServerCommon::Handle_vFile_unlink); 175 } 176 177 // Destructor 178 GDBRemoteCommunicationServerCommon::~GDBRemoteCommunicationServerCommon() {} 179 180 GDBRemoteCommunication::PacketResult 181 GDBRemoteCommunicationServerCommon::Handle_qHostInfo( 182 StringExtractorGDBRemote &packet) { 183 StreamString response; 184 185 // $cputype:16777223;cpusubtype:3;ostype:Darwin;vendor:apple;endian:little;ptrsize:8;#00 186 187 ArchSpec host_arch(HostInfo::GetArchitecture()); 188 const llvm::Triple &host_triple = host_arch.GetTriple(); 189 response.PutCString("triple:"); 190 response.PutStringAsRawHex8(host_triple.getTriple()); 191 response.Printf(";ptrsize:%u;", host_arch.GetAddressByteSize()); 192 193 const char *distribution_id = host_arch.GetDistributionId().AsCString(); 194 if (distribution_id) { 195 response.PutCString("distribution_id:"); 196 response.PutStringAsRawHex8(distribution_id); 197 response.PutCString(";"); 198 } 199 200 #if defined(__APPLE__) 201 // For parity with debugserver, we'll include the vendor key. 202 response.PutCString("vendor:apple;"); 203 204 // Send out MachO info. 205 uint32_t cpu = host_arch.GetMachOCPUType(); 206 uint32_t sub = host_arch.GetMachOCPUSubType(); 207 if (cpu != LLDB_INVALID_CPUTYPE) 208 response.Printf("cputype:%u;", cpu); 209 if (sub != LLDB_INVALID_CPUTYPE) 210 response.Printf("cpusubtype:%u;", sub); 211 212 if (cpu == llvm::MachO::CPU_TYPE_ARM || cpu == llvm::MachO::CPU_TYPE_ARM64) { 213 // Indicate the OS type. 214 #if defined(TARGET_OS_TV) && TARGET_OS_TV == 1 215 response.PutCString("ostype:tvos;"); 216 #elif defined(TARGET_OS_WATCH) && TARGET_OS_WATCH == 1 217 response.PutCString("ostype:watchos;"); 218 #elif defined(TARGET_OS_BRIDGE) && TARGET_OS_BRIDGE == 1 219 response.PutCString("ostype:bridgeos;"); 220 #else 221 response.PutCString("ostype:ios;"); 222 #endif 223 224 // On arm, we use "synchronous" watchpoints which means the exception is 225 // delivered before the instruction executes. 226 response.PutCString("watchpoint_exceptions_received:before;"); 227 } else { 228 response.PutCString("ostype:macosx;"); 229 response.Printf("watchpoint_exceptions_received:after;"); 230 } 231 232 #else 233 if (host_arch.GetMachine() == llvm::Triple::aarch64 || 234 host_arch.GetMachine() == llvm::Triple::aarch64_32 || 235 host_arch.GetMachine() == llvm::Triple::aarch64_be || 236 host_arch.GetMachine() == llvm::Triple::arm || 237 host_arch.GetMachine() == llvm::Triple::armeb || host_arch.IsMIPS()) 238 response.Printf("watchpoint_exceptions_received:before;"); 239 else 240 response.Printf("watchpoint_exceptions_received:after;"); 241 #endif 242 243 switch (endian::InlHostByteOrder()) { 244 case eByteOrderBig: 245 response.PutCString("endian:big;"); 246 break; 247 case eByteOrderLittle: 248 response.PutCString("endian:little;"); 249 break; 250 case eByteOrderPDP: 251 response.PutCString("endian:pdp;"); 252 break; 253 default: 254 response.PutCString("endian:unknown;"); 255 break; 256 } 257 258 llvm::VersionTuple version = HostInfo::GetOSVersion(); 259 if (!version.empty()) { 260 response.Format("os_version:{0}", version.getAsString()); 261 response.PutChar(';'); 262 } 263 264 #if defined(__APPLE__) 265 llvm::VersionTuple maccatalyst_version = HostInfo::GetMacCatalystVersion(); 266 if (!maccatalyst_version.empty()) { 267 response.Format("maccatalyst_version:{0}", 268 maccatalyst_version.getAsString()); 269 response.PutChar(';'); 270 } 271 #endif 272 273 std::string s; 274 if (HostInfo::GetOSBuildString(s)) { 275 response.PutCString("os_build:"); 276 response.PutStringAsRawHex8(s); 277 response.PutChar(';'); 278 } 279 if (HostInfo::GetOSKernelDescription(s)) { 280 response.PutCString("os_kernel:"); 281 response.PutStringAsRawHex8(s); 282 response.PutChar(';'); 283 } 284 285 #if defined(__APPLE__) 286 287 #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) 288 // For iOS devices, we are connected through a USB Mux so we never pretend to 289 // actually have a hostname as far as the remote lldb that is connecting to 290 // this lldb-platform is concerned 291 response.PutCString("hostname:"); 292 response.PutStringAsRawHex8("127.0.0.1"); 293 response.PutChar(';'); 294 #else // #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) 295 if (HostInfo::GetHostname(s)) { 296 response.PutCString("hostname:"); 297 response.PutStringAsRawHex8(s); 298 response.PutChar(';'); 299 } 300 #endif // #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) 301 302 #else // #if defined(__APPLE__) 303 if (HostInfo::GetHostname(s)) { 304 response.PutCString("hostname:"); 305 response.PutStringAsRawHex8(s); 306 response.PutChar(';'); 307 } 308 #endif // #if defined(__APPLE__) 309 310 if (g_default_packet_timeout_sec > 0) 311 response.Printf("default_packet_timeout:%u;", g_default_packet_timeout_sec); 312 313 return SendPacketNoLock(response.GetString()); 314 } 315 316 GDBRemoteCommunication::PacketResult 317 GDBRemoteCommunicationServerCommon::Handle_qProcessInfoPID( 318 StringExtractorGDBRemote &packet) { 319 // Packet format: "qProcessInfoPID:%i" where %i is the pid 320 packet.SetFilePos(::strlen("qProcessInfoPID:")); 321 lldb::pid_t pid = packet.GetU32(LLDB_INVALID_PROCESS_ID); 322 if (pid != LLDB_INVALID_PROCESS_ID) { 323 ProcessInstanceInfo proc_info; 324 if (Host::GetProcessInfo(pid, proc_info)) { 325 StreamString response; 326 CreateProcessInfoResponse(proc_info, response); 327 return SendPacketNoLock(response.GetString()); 328 } 329 } 330 return SendErrorResponse(1); 331 } 332 333 GDBRemoteCommunication::PacketResult 334 GDBRemoteCommunicationServerCommon::Handle_qfProcessInfo( 335 StringExtractorGDBRemote &packet) { 336 m_proc_infos_index = 0; 337 m_proc_infos.Clear(); 338 339 ProcessInstanceInfoMatch match_info; 340 packet.SetFilePos(::strlen("qfProcessInfo")); 341 if (packet.GetChar() == ':') { 342 llvm::StringRef key; 343 llvm::StringRef value; 344 while (packet.GetNameColonValue(key, value)) { 345 bool success = true; 346 if (key.equals("name")) { 347 StringExtractor extractor(value); 348 std::string file; 349 extractor.GetHexByteString(file); 350 match_info.GetProcessInfo().GetExecutableFile().SetFile( 351 file, FileSpec::Style::native); 352 } else if (key.equals("name_match")) { 353 NameMatch name_match = llvm::StringSwitch<NameMatch>(value) 354 .Case("equals", NameMatch::Equals) 355 .Case("starts_with", NameMatch::StartsWith) 356 .Case("ends_with", NameMatch::EndsWith) 357 .Case("contains", NameMatch::Contains) 358 .Case("regex", NameMatch::RegularExpression) 359 .Default(NameMatch::Ignore); 360 match_info.SetNameMatchType(name_match); 361 if (name_match == NameMatch::Ignore) 362 return SendErrorResponse(2); 363 } else if (key.equals("pid")) { 364 lldb::pid_t pid = LLDB_INVALID_PROCESS_ID; 365 if (value.getAsInteger(0, pid)) 366 return SendErrorResponse(2); 367 match_info.GetProcessInfo().SetProcessID(pid); 368 } else if (key.equals("parent_pid")) { 369 lldb::pid_t pid = LLDB_INVALID_PROCESS_ID; 370 if (value.getAsInteger(0, pid)) 371 return SendErrorResponse(2); 372 match_info.GetProcessInfo().SetParentProcessID(pid); 373 } else if (key.equals("uid")) { 374 uint32_t uid = UINT32_MAX; 375 if (value.getAsInteger(0, uid)) 376 return SendErrorResponse(2); 377 match_info.GetProcessInfo().SetUserID(uid); 378 } else if (key.equals("gid")) { 379 uint32_t gid = UINT32_MAX; 380 if (value.getAsInteger(0, gid)) 381 return SendErrorResponse(2); 382 match_info.GetProcessInfo().SetGroupID(gid); 383 } else if (key.equals("euid")) { 384 uint32_t uid = UINT32_MAX; 385 if (value.getAsInteger(0, uid)) 386 return SendErrorResponse(2); 387 match_info.GetProcessInfo().SetEffectiveUserID(uid); 388 } else if (key.equals("egid")) { 389 uint32_t gid = UINT32_MAX; 390 if (value.getAsInteger(0, gid)) 391 return SendErrorResponse(2); 392 match_info.GetProcessInfo().SetEffectiveGroupID(gid); 393 } else if (key.equals("all_users")) { 394 match_info.SetMatchAllUsers( 395 OptionArgParser::ToBoolean(value, false, &success)); 396 } else if (key.equals("triple")) { 397 match_info.GetProcessInfo().GetArchitecture() = 398 HostInfo::GetAugmentedArchSpec(value); 399 } else { 400 success = false; 401 } 402 403 if (!success) 404 return SendErrorResponse(2); 405 } 406 } 407 408 if (Host::FindProcesses(match_info, m_proc_infos)) { 409 // We found something, return the first item by calling the get subsequent 410 // process info packet handler... 411 return Handle_qsProcessInfo(packet); 412 } 413 return SendErrorResponse(3); 414 } 415 416 GDBRemoteCommunication::PacketResult 417 GDBRemoteCommunicationServerCommon::Handle_qsProcessInfo( 418 StringExtractorGDBRemote &packet) { 419 if (m_proc_infos_index < m_proc_infos.GetSize()) { 420 StreamString response; 421 CreateProcessInfoResponse( 422 m_proc_infos.GetProcessInfoAtIndex(m_proc_infos_index), response); 423 ++m_proc_infos_index; 424 return SendPacketNoLock(response.GetString()); 425 } 426 return SendErrorResponse(4); 427 } 428 429 GDBRemoteCommunication::PacketResult 430 GDBRemoteCommunicationServerCommon::Handle_qUserName( 431 StringExtractorGDBRemote &packet) { 432 #if LLDB_ENABLE_POSIX 433 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS)); 434 LLDB_LOGF(log, "GDBRemoteCommunicationServerCommon::%s begin", __FUNCTION__); 435 436 // Packet format: "qUserName:%i" where %i is the uid 437 packet.SetFilePos(::strlen("qUserName:")); 438 uint32_t uid = packet.GetU32(UINT32_MAX); 439 if (uid != UINT32_MAX) { 440 if (llvm::Optional<llvm::StringRef> name = 441 HostInfo::GetUserIDResolver().GetUserName(uid)) { 442 StreamString response; 443 response.PutStringAsRawHex8(*name); 444 return SendPacketNoLock(response.GetString()); 445 } 446 } 447 LLDB_LOGF(log, "GDBRemoteCommunicationServerCommon::%s end", __FUNCTION__); 448 #endif 449 return SendErrorResponse(5); 450 } 451 452 GDBRemoteCommunication::PacketResult 453 GDBRemoteCommunicationServerCommon::Handle_qGroupName( 454 StringExtractorGDBRemote &packet) { 455 #if LLDB_ENABLE_POSIX 456 // Packet format: "qGroupName:%i" where %i is the gid 457 packet.SetFilePos(::strlen("qGroupName:")); 458 uint32_t gid = packet.GetU32(UINT32_MAX); 459 if (gid != UINT32_MAX) { 460 if (llvm::Optional<llvm::StringRef> name = 461 HostInfo::GetUserIDResolver().GetGroupName(gid)) { 462 StreamString response; 463 response.PutStringAsRawHex8(*name); 464 return SendPacketNoLock(response.GetString()); 465 } 466 } 467 #endif 468 return SendErrorResponse(6); 469 } 470 471 GDBRemoteCommunication::PacketResult 472 GDBRemoteCommunicationServerCommon::Handle_qSpeedTest( 473 StringExtractorGDBRemote &packet) { 474 packet.SetFilePos(::strlen("qSpeedTest:")); 475 476 llvm::StringRef key; 477 llvm::StringRef value; 478 bool success = packet.GetNameColonValue(key, value); 479 if (success && key.equals("response_size")) { 480 uint32_t response_size = 0; 481 if (!value.getAsInteger(0, response_size)) { 482 if (response_size == 0) 483 return SendOKResponse(); 484 StreamString response; 485 uint32_t bytes_left = response_size; 486 response.PutCString("data:"); 487 while (bytes_left > 0) { 488 if (bytes_left >= 26) { 489 response.PutCString("ABCDEFGHIJKLMNOPQRSTUVWXYZ"); 490 bytes_left -= 26; 491 } else { 492 response.Printf("%*.*s;", bytes_left, bytes_left, 493 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"); 494 bytes_left = 0; 495 } 496 } 497 return SendPacketNoLock(response.GetString()); 498 } 499 } 500 return SendErrorResponse(7); 501 } 502 503 GDBRemoteCommunication::PacketResult 504 GDBRemoteCommunicationServerCommon::Handle_vFile_Open( 505 StringExtractorGDBRemote &packet) { 506 packet.SetFilePos(::strlen("vFile:open:")); 507 std::string path; 508 packet.GetHexByteStringTerminatedBy(path, ','); 509 if (!path.empty()) { 510 if (packet.GetChar() == ',') { 511 // FIXME 512 // The flag values for OpenOptions do not match the values used by GDB 513 // * https://sourceware.org/gdb/onlinedocs/gdb/Open-Flags.html#Open-Flags 514 // * rdar://problem/46788934 515 auto flags = File::OpenOptions(packet.GetHexMaxU32(false, 0)); 516 if (packet.GetChar() == ',') { 517 mode_t mode = packet.GetHexMaxU32(false, 0600); 518 FileSpec path_spec(path); 519 FileSystem::Instance().Resolve(path_spec); 520 // Do not close fd. 521 auto file = FileSystem::Instance().Open(path_spec, flags, mode, false); 522 523 int save_errno = 0; 524 int descriptor = File::kInvalidDescriptor; 525 if (file) { 526 descriptor = file.get()->GetDescriptor(); 527 } else { 528 std::error_code code = errorToErrorCode(file.takeError()); 529 if (code.category() == std::system_category()) { 530 save_errno = code.value(); 531 } 532 } 533 534 StreamString response; 535 response.PutChar('F'); 536 response.Printf("%i", descriptor); 537 if (save_errno) 538 response.Printf(",%i", save_errno); 539 return SendPacketNoLock(response.GetString()); 540 } 541 } 542 } 543 return SendErrorResponse(18); 544 } 545 546 GDBRemoteCommunication::PacketResult 547 GDBRemoteCommunicationServerCommon::Handle_vFile_Close( 548 StringExtractorGDBRemote &packet) { 549 packet.SetFilePos(::strlen("vFile:close:")); 550 int fd = packet.GetS32(-1); 551 int err = -1; 552 int save_errno = 0; 553 if (fd >= 0) { 554 NativeFile file(fd, File::OpenOptions(0), true); 555 Status error = file.Close(); 556 err = 0; 557 save_errno = error.GetError(); 558 } else { 559 save_errno = EINVAL; 560 } 561 StreamString response; 562 response.PutChar('F'); 563 response.Printf("%i", err); 564 if (save_errno) 565 response.Printf(",%i", save_errno); 566 return SendPacketNoLock(response.GetString()); 567 } 568 569 GDBRemoteCommunication::PacketResult 570 GDBRemoteCommunicationServerCommon::Handle_vFile_pRead( 571 StringExtractorGDBRemote &packet) { 572 StreamGDBRemote response; 573 packet.SetFilePos(::strlen("vFile:pread:")); 574 int fd = packet.GetS32(-1); 575 if (packet.GetChar() == ',') { 576 size_t count = packet.GetU64(SIZE_MAX); 577 if (packet.GetChar() == ',') { 578 off_t offset = packet.GetU64(UINT32_MAX); 579 if (count == SIZE_MAX) { 580 response.Printf("F-1:%i", EINVAL); 581 return SendPacketNoLock(response.GetString()); 582 } 583 584 std::string buffer(count, 0); 585 NativeFile file(fd, File::eOpenOptionRead, false); 586 Status error = file.Read(static_cast<void *>(&buffer[0]), count, offset); 587 const ssize_t bytes_read = error.Success() ? count : -1; 588 const int save_errno = error.GetError(); 589 response.PutChar('F'); 590 response.Printf("%zi", bytes_read); 591 if (save_errno) 592 response.Printf(",%i", save_errno); 593 else { 594 response.PutChar(';'); 595 response.PutEscapedBytes(&buffer[0], bytes_read); 596 } 597 return SendPacketNoLock(response.GetString()); 598 } 599 } 600 return SendErrorResponse(21); 601 } 602 603 GDBRemoteCommunication::PacketResult 604 GDBRemoteCommunicationServerCommon::Handle_vFile_pWrite( 605 StringExtractorGDBRemote &packet) { 606 packet.SetFilePos(::strlen("vFile:pwrite:")); 607 608 StreamGDBRemote response; 609 response.PutChar('F'); 610 611 int fd = packet.GetU32(UINT32_MAX); 612 if (packet.GetChar() == ',') { 613 off_t offset = packet.GetU64(UINT32_MAX); 614 if (packet.GetChar() == ',') { 615 std::string buffer; 616 if (packet.GetEscapedBinaryData(buffer)) { 617 NativeFile file(fd, File::eOpenOptionWrite, false); 618 size_t count = buffer.size(); 619 Status error = 620 file.Write(static_cast<const void *>(&buffer[0]), count, offset); 621 const ssize_t bytes_written = error.Success() ? count : -1; 622 const int save_errno = error.GetError(); 623 response.Printf("%zi", bytes_written); 624 if (save_errno) 625 response.Printf(",%i", save_errno); 626 } else { 627 response.Printf("-1,%i", EINVAL); 628 } 629 return SendPacketNoLock(response.GetString()); 630 } 631 } 632 return SendErrorResponse(27); 633 } 634 635 GDBRemoteCommunication::PacketResult 636 GDBRemoteCommunicationServerCommon::Handle_vFile_Size( 637 StringExtractorGDBRemote &packet) { 638 packet.SetFilePos(::strlen("vFile:size:")); 639 std::string path; 640 packet.GetHexByteString(path); 641 if (!path.empty()) { 642 uint64_t Size; 643 if (llvm::sys::fs::file_size(path, Size)) 644 return SendErrorResponse(5); 645 StreamString response; 646 response.PutChar('F'); 647 response.PutHex64(Size); 648 if (Size == UINT64_MAX) { 649 response.PutChar(','); 650 response.PutHex64(Size); // TODO: replace with Host::GetSyswideErrorCode() 651 } 652 return SendPacketNoLock(response.GetString()); 653 } 654 return SendErrorResponse(22); 655 } 656 657 GDBRemoteCommunication::PacketResult 658 GDBRemoteCommunicationServerCommon::Handle_vFile_Mode( 659 StringExtractorGDBRemote &packet) { 660 packet.SetFilePos(::strlen("vFile:mode:")); 661 std::string path; 662 packet.GetHexByteString(path); 663 if (!path.empty()) { 664 FileSpec file_spec(path); 665 FileSystem::Instance().Resolve(file_spec); 666 std::error_code ec; 667 const uint32_t mode = FileSystem::Instance().GetPermissions(file_spec, ec); 668 StreamString response; 669 response.Printf("F%u", mode); 670 if (mode == 0 || ec) 671 response.Printf(",%i", (int)Status(ec).GetError()); 672 return SendPacketNoLock(response.GetString()); 673 } 674 return SendErrorResponse(23); 675 } 676 677 GDBRemoteCommunication::PacketResult 678 GDBRemoteCommunicationServerCommon::Handle_vFile_Exists( 679 StringExtractorGDBRemote &packet) { 680 packet.SetFilePos(::strlen("vFile:exists:")); 681 std::string path; 682 packet.GetHexByteString(path); 683 if (!path.empty()) { 684 bool retcode = llvm::sys::fs::exists(path); 685 StreamString response; 686 response.PutChar('F'); 687 response.PutChar(','); 688 if (retcode) 689 response.PutChar('1'); 690 else 691 response.PutChar('0'); 692 return SendPacketNoLock(response.GetString()); 693 } 694 return SendErrorResponse(24); 695 } 696 697 GDBRemoteCommunication::PacketResult 698 GDBRemoteCommunicationServerCommon::Handle_vFile_symlink( 699 StringExtractorGDBRemote &packet) { 700 packet.SetFilePos(::strlen("vFile:symlink:")); 701 std::string dst, src; 702 packet.GetHexByteStringTerminatedBy(dst, ','); 703 packet.GetChar(); // Skip ',' char 704 packet.GetHexByteString(src); 705 706 FileSpec src_spec(src); 707 FileSystem::Instance().Resolve(src_spec); 708 Status error = FileSystem::Instance().Symlink(src_spec, FileSpec(dst)); 709 710 StreamString response; 711 response.Printf("F%u,%u", error.GetError(), error.GetError()); 712 return SendPacketNoLock(response.GetString()); 713 } 714 715 GDBRemoteCommunication::PacketResult 716 GDBRemoteCommunicationServerCommon::Handle_vFile_unlink( 717 StringExtractorGDBRemote &packet) { 718 packet.SetFilePos(::strlen("vFile:unlink:")); 719 std::string path; 720 packet.GetHexByteString(path); 721 Status error(llvm::sys::fs::remove(path)); 722 StreamString response; 723 response.Printf("F%u,%u", error.GetError(), error.GetError()); 724 return SendPacketNoLock(response.GetString()); 725 } 726 727 GDBRemoteCommunication::PacketResult 728 GDBRemoteCommunicationServerCommon::Handle_qPlatform_shell( 729 StringExtractorGDBRemote &packet) { 730 packet.SetFilePos(::strlen("qPlatform_shell:")); 731 std::string path; 732 std::string working_dir; 733 packet.GetHexByteStringTerminatedBy(path, ','); 734 if (!path.empty()) { 735 if (packet.GetChar() == ',') { 736 // FIXME: add timeout to qPlatform_shell packet 737 // uint32_t timeout = packet.GetHexMaxU32(false, 32); 738 if (packet.GetChar() == ',') 739 packet.GetHexByteString(working_dir); 740 int status, signo; 741 std::string output; 742 FileSpec working_spec(working_dir); 743 FileSystem::Instance().Resolve(working_spec); 744 Status err = 745 Host::RunShellCommand(path.c_str(), working_spec, &status, &signo, 746 &output, std::chrono::seconds(10)); 747 StreamGDBRemote response; 748 if (err.Fail()) { 749 response.PutCString("F,"); 750 response.PutHex32(UINT32_MAX); 751 } else { 752 response.PutCString("F,"); 753 response.PutHex32(status); 754 response.PutChar(','); 755 response.PutHex32(signo); 756 response.PutChar(','); 757 response.PutEscapedBytes(output.c_str(), output.size()); 758 } 759 return SendPacketNoLock(response.GetString()); 760 } 761 } 762 return SendErrorResponse(24); 763 } 764 765 GDBRemoteCommunication::PacketResult 766 GDBRemoteCommunicationServerCommon::Handle_vFile_Stat( 767 StringExtractorGDBRemote &packet) { 768 return SendUnimplementedResponse( 769 "GDBRemoteCommunicationServerCommon::Handle_vFile_Stat() unimplemented"); 770 } 771 772 GDBRemoteCommunication::PacketResult 773 GDBRemoteCommunicationServerCommon::Handle_vFile_MD5( 774 StringExtractorGDBRemote &packet) { 775 packet.SetFilePos(::strlen("vFile:MD5:")); 776 std::string path; 777 packet.GetHexByteString(path); 778 if (!path.empty()) { 779 StreamGDBRemote response; 780 auto Result = llvm::sys::fs::md5_contents(path); 781 if (!Result) { 782 response.PutCString("F,"); 783 response.PutCString("x"); 784 } else { 785 response.PutCString("F,"); 786 response.PutHex64(Result->low()); 787 response.PutHex64(Result->high()); 788 } 789 return SendPacketNoLock(response.GetString()); 790 } 791 return SendErrorResponse(25); 792 } 793 794 GDBRemoteCommunication::PacketResult 795 GDBRemoteCommunicationServerCommon::Handle_qPlatform_mkdir( 796 StringExtractorGDBRemote &packet) { 797 packet.SetFilePos(::strlen("qPlatform_mkdir:")); 798 mode_t mode = packet.GetHexMaxU32(false, UINT32_MAX); 799 if (packet.GetChar() == ',') { 800 std::string path; 801 packet.GetHexByteString(path); 802 Status error(llvm::sys::fs::create_directory(path, mode)); 803 804 StreamGDBRemote response; 805 response.Printf("F%u", error.GetError()); 806 807 return SendPacketNoLock(response.GetString()); 808 } 809 return SendErrorResponse(20); 810 } 811 812 GDBRemoteCommunication::PacketResult 813 GDBRemoteCommunicationServerCommon::Handle_qPlatform_chmod( 814 StringExtractorGDBRemote &packet) { 815 packet.SetFilePos(::strlen("qPlatform_chmod:")); 816 817 auto perms = 818 static_cast<llvm::sys::fs::perms>(packet.GetHexMaxU32(false, UINT32_MAX)); 819 if (packet.GetChar() == ',') { 820 std::string path; 821 packet.GetHexByteString(path); 822 Status error(llvm::sys::fs::setPermissions(path, perms)); 823 824 StreamGDBRemote response; 825 response.Printf("F%u", error.GetError()); 826 827 return SendPacketNoLock(response.GetString()); 828 } 829 return SendErrorResponse(19); 830 } 831 832 GDBRemoteCommunication::PacketResult 833 GDBRemoteCommunicationServerCommon::Handle_qSupported( 834 StringExtractorGDBRemote &packet) { 835 StreamGDBRemote response; 836 837 // Features common to lldb-platform and llgs. 838 uint32_t max_packet_size = 128 * 1024; // 128KBytes is a reasonable max packet 839 // size--debugger can always use less 840 response.Printf("PacketSize=%x", max_packet_size); 841 842 response.PutCString(";QStartNoAckMode+"); 843 response.PutCString(";QThreadSuffixSupported+"); 844 response.PutCString(";QListThreadsInStopReply+"); 845 response.PutCString(";qEcho+"); 846 #if defined(__linux__) || defined(__NetBSD__) 847 response.PutCString(";QPassSignals+"); 848 response.PutCString(";qXfer:auxv:read+"); 849 response.PutCString(";qXfer:libraries-svr4:read+"); 850 #endif 851 852 return SendPacketNoLock(response.GetString()); 853 } 854 855 GDBRemoteCommunication::PacketResult 856 GDBRemoteCommunicationServerCommon::Handle_QThreadSuffixSupported( 857 StringExtractorGDBRemote &packet) { 858 m_thread_suffix_supported = true; 859 return SendOKResponse(); 860 } 861 862 GDBRemoteCommunication::PacketResult 863 GDBRemoteCommunicationServerCommon::Handle_QListThreadsInStopReply( 864 StringExtractorGDBRemote &packet) { 865 m_list_threads_in_stop_reply = true; 866 return SendOKResponse(); 867 } 868 869 GDBRemoteCommunication::PacketResult 870 GDBRemoteCommunicationServerCommon::Handle_QSetDetachOnError( 871 StringExtractorGDBRemote &packet) { 872 packet.SetFilePos(::strlen("QSetDetachOnError:")); 873 if (packet.GetU32(0)) 874 m_process_launch_info.GetFlags().Set(eLaunchFlagDetachOnError); 875 else 876 m_process_launch_info.GetFlags().Clear(eLaunchFlagDetachOnError); 877 return SendOKResponse(); 878 } 879 880 GDBRemoteCommunication::PacketResult 881 GDBRemoteCommunicationServerCommon::Handle_QStartNoAckMode( 882 StringExtractorGDBRemote &packet) { 883 // Send response first before changing m_send_acks to we ack this packet 884 PacketResult packet_result = SendOKResponse(); 885 m_send_acks = false; 886 return packet_result; 887 } 888 889 GDBRemoteCommunication::PacketResult 890 GDBRemoteCommunicationServerCommon::Handle_QSetSTDIN( 891 StringExtractorGDBRemote &packet) { 892 packet.SetFilePos(::strlen("QSetSTDIN:")); 893 FileAction file_action; 894 std::string path; 895 packet.GetHexByteString(path); 896 const bool read = true; 897 const bool write = false; 898 if (file_action.Open(STDIN_FILENO, FileSpec(path), read, write)) { 899 m_process_launch_info.AppendFileAction(file_action); 900 return SendOKResponse(); 901 } 902 return SendErrorResponse(15); 903 } 904 905 GDBRemoteCommunication::PacketResult 906 GDBRemoteCommunicationServerCommon::Handle_QSetSTDOUT( 907 StringExtractorGDBRemote &packet) { 908 packet.SetFilePos(::strlen("QSetSTDOUT:")); 909 FileAction file_action; 910 std::string path; 911 packet.GetHexByteString(path); 912 const bool read = false; 913 const bool write = true; 914 if (file_action.Open(STDOUT_FILENO, FileSpec(path), read, write)) { 915 m_process_launch_info.AppendFileAction(file_action); 916 return SendOKResponse(); 917 } 918 return SendErrorResponse(16); 919 } 920 921 GDBRemoteCommunication::PacketResult 922 GDBRemoteCommunicationServerCommon::Handle_QSetSTDERR( 923 StringExtractorGDBRemote &packet) { 924 packet.SetFilePos(::strlen("QSetSTDERR:")); 925 FileAction file_action; 926 std::string path; 927 packet.GetHexByteString(path); 928 const bool read = false; 929 const bool write = true; 930 if (file_action.Open(STDERR_FILENO, FileSpec(path), read, write)) { 931 m_process_launch_info.AppendFileAction(file_action); 932 return SendOKResponse(); 933 } 934 return SendErrorResponse(17); 935 } 936 937 GDBRemoteCommunication::PacketResult 938 GDBRemoteCommunicationServerCommon::Handle_qLaunchSuccess( 939 StringExtractorGDBRemote &packet) { 940 if (m_process_launch_error.Success()) 941 return SendOKResponse(); 942 StreamString response; 943 response.PutChar('E'); 944 response.PutCString(m_process_launch_error.AsCString("<unknown error>")); 945 return SendPacketNoLock(response.GetString()); 946 } 947 948 GDBRemoteCommunication::PacketResult 949 GDBRemoteCommunicationServerCommon::Handle_QEnvironment( 950 StringExtractorGDBRemote &packet) { 951 packet.SetFilePos(::strlen("QEnvironment:")); 952 const uint32_t bytes_left = packet.GetBytesLeft(); 953 if (bytes_left > 0) { 954 m_process_launch_info.GetEnvironment().insert(packet.Peek()); 955 return SendOKResponse(); 956 } 957 return SendErrorResponse(12); 958 } 959 960 GDBRemoteCommunication::PacketResult 961 GDBRemoteCommunicationServerCommon::Handle_QEnvironmentHexEncoded( 962 StringExtractorGDBRemote &packet) { 963 packet.SetFilePos(::strlen("QEnvironmentHexEncoded:")); 964 const uint32_t bytes_left = packet.GetBytesLeft(); 965 if (bytes_left > 0) { 966 std::string str; 967 packet.GetHexByteString(str); 968 m_process_launch_info.GetEnvironment().insert(str); 969 return SendOKResponse(); 970 } 971 return SendErrorResponse(12); 972 } 973 974 GDBRemoteCommunication::PacketResult 975 GDBRemoteCommunicationServerCommon::Handle_QLaunchArch( 976 StringExtractorGDBRemote &packet) { 977 packet.SetFilePos(::strlen("QLaunchArch:")); 978 const uint32_t bytes_left = packet.GetBytesLeft(); 979 if (bytes_left > 0) { 980 const char *arch_triple = packet.Peek(); 981 m_process_launch_info.SetArchitecture( 982 HostInfo::GetAugmentedArchSpec(arch_triple)); 983 return SendOKResponse(); 984 } 985 return SendErrorResponse(13); 986 } 987 988 GDBRemoteCommunication::PacketResult 989 GDBRemoteCommunicationServerCommon::Handle_A(StringExtractorGDBRemote &packet) { 990 // The 'A' packet is the most over designed packet ever here with redundant 991 // argument indexes, redundant argument lengths and needed hex encoded 992 // argument string values. Really all that is needed is a comma separated hex 993 // encoded argument value list, but we will stay true to the documented 994 // version of the 'A' packet here... 995 996 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS)); 997 int actual_arg_index = 0; 998 999 packet.SetFilePos(1); // Skip the 'A' 1000 bool success = true; 1001 while (success && packet.GetBytesLeft() > 0) { 1002 // Decode the decimal argument string length. This length is the number of 1003 // hex nibbles in the argument string value. 1004 const uint32_t arg_len = packet.GetU32(UINT32_MAX); 1005 if (arg_len == UINT32_MAX) 1006 success = false; 1007 else { 1008 // Make sure the argument hex string length is followed by a comma 1009 if (packet.GetChar() != ',') 1010 success = false; 1011 else { 1012 // Decode the argument index. We ignore this really because who would 1013 // really send down the arguments in a random order??? 1014 const uint32_t arg_idx = packet.GetU32(UINT32_MAX); 1015 if (arg_idx == UINT32_MAX) 1016 success = false; 1017 else { 1018 // Make sure the argument index is followed by a comma 1019 if (packet.GetChar() != ',') 1020 success = false; 1021 else { 1022 // Decode the argument string value from hex bytes back into a UTF8 1023 // string and make sure the length matches the one supplied in the 1024 // packet 1025 std::string arg; 1026 if (packet.GetHexByteStringFixedLength(arg, arg_len) != 1027 (arg_len / 2)) 1028 success = false; 1029 else { 1030 // If there are any bytes left 1031 if (packet.GetBytesLeft()) { 1032 if (packet.GetChar() != ',') 1033 success = false; 1034 } 1035 1036 if (success) { 1037 if (arg_idx == 0) 1038 m_process_launch_info.GetExecutableFile().SetFile( 1039 arg, FileSpec::Style::native); 1040 m_process_launch_info.GetArguments().AppendArgument(arg); 1041 LLDB_LOGF(log, "LLGSPacketHandler::%s added arg %d: \"%s\"", 1042 __FUNCTION__, actual_arg_index, arg.c_str()); 1043 ++actual_arg_index; 1044 } 1045 } 1046 } 1047 } 1048 } 1049 } 1050 } 1051 1052 if (success) { 1053 m_process_launch_error = LaunchProcess(); 1054 if (m_process_launch_error.Success()) 1055 return SendOKResponse(); 1056 LLDB_LOG(log, "failed to launch exe: {0}", m_process_launch_error); 1057 } 1058 return SendErrorResponse(8); 1059 } 1060 1061 GDBRemoteCommunication::PacketResult 1062 GDBRemoteCommunicationServerCommon::Handle_qEcho( 1063 StringExtractorGDBRemote &packet) { 1064 // Just echo back the exact same packet for qEcho... 1065 return SendPacketNoLock(packet.GetStringRef()); 1066 } 1067 1068 GDBRemoteCommunication::PacketResult 1069 GDBRemoteCommunicationServerCommon::Handle_qModuleInfo( 1070 StringExtractorGDBRemote &packet) { 1071 packet.SetFilePos(::strlen("qModuleInfo:")); 1072 1073 std::string module_path; 1074 packet.GetHexByteStringTerminatedBy(module_path, ';'); 1075 if (module_path.empty()) 1076 return SendErrorResponse(1); 1077 1078 if (packet.GetChar() != ';') 1079 return SendErrorResponse(2); 1080 1081 std::string triple; 1082 packet.GetHexByteString(triple); 1083 1084 ModuleSpec matched_module_spec = GetModuleInfo(module_path, triple); 1085 if (!matched_module_spec.GetFileSpec()) 1086 return SendErrorResponse(3); 1087 1088 const auto file_offset = matched_module_spec.GetObjectOffset(); 1089 const auto file_size = matched_module_spec.GetObjectSize(); 1090 const auto uuid_str = matched_module_spec.GetUUID().GetAsString(""); 1091 1092 StreamGDBRemote response; 1093 1094 if (uuid_str.empty()) { 1095 auto Result = llvm::sys::fs::md5_contents( 1096 matched_module_spec.GetFileSpec().GetPath()); 1097 if (!Result) 1098 return SendErrorResponse(5); 1099 response.PutCString("md5:"); 1100 response.PutStringAsRawHex8(Result->digest()); 1101 } else { 1102 response.PutCString("uuid:"); 1103 response.PutStringAsRawHex8(uuid_str); 1104 } 1105 response.PutChar(';'); 1106 1107 const auto &module_arch = matched_module_spec.GetArchitecture(); 1108 response.PutCString("triple:"); 1109 response.PutStringAsRawHex8(module_arch.GetTriple().getTriple()); 1110 response.PutChar(';'); 1111 1112 response.PutCString("file_path:"); 1113 response.PutStringAsRawHex8(matched_module_spec.GetFileSpec().GetCString()); 1114 response.PutChar(';'); 1115 response.PutCString("file_offset:"); 1116 response.PutHex64(file_offset); 1117 response.PutChar(';'); 1118 response.PutCString("file_size:"); 1119 response.PutHex64(file_size); 1120 response.PutChar(';'); 1121 1122 return SendPacketNoLock(response.GetString()); 1123 } 1124 1125 GDBRemoteCommunication::PacketResult 1126 GDBRemoteCommunicationServerCommon::Handle_jModulesInfo( 1127 StringExtractorGDBRemote &packet) { 1128 namespace json = llvm::json; 1129 1130 packet.SetFilePos(::strlen("jModulesInfo:")); 1131 1132 StructuredData::ObjectSP object_sp = StructuredData::ParseJSON(packet.Peek()); 1133 if (!object_sp) 1134 return SendErrorResponse(1); 1135 1136 StructuredData::Array *packet_array = object_sp->GetAsArray(); 1137 if (!packet_array) 1138 return SendErrorResponse(2); 1139 1140 json::Array response_array; 1141 for (size_t i = 0; i < packet_array->GetSize(); ++i) { 1142 StructuredData::Dictionary *query = 1143 packet_array->GetItemAtIndex(i)->GetAsDictionary(); 1144 if (!query) 1145 continue; 1146 llvm::StringRef file, triple; 1147 if (!query->GetValueForKeyAsString("file", file) || 1148 !query->GetValueForKeyAsString("triple", triple)) 1149 continue; 1150 1151 ModuleSpec matched_module_spec = GetModuleInfo(file, triple); 1152 if (!matched_module_spec.GetFileSpec()) 1153 continue; 1154 1155 const auto file_offset = matched_module_spec.GetObjectOffset(); 1156 const auto file_size = matched_module_spec.GetObjectSize(); 1157 const auto uuid_str = matched_module_spec.GetUUID().GetAsString(""); 1158 if (uuid_str.empty()) 1159 continue; 1160 const auto triple_str = 1161 matched_module_spec.GetArchitecture().GetTriple().getTriple(); 1162 const auto file_path = matched_module_spec.GetFileSpec().GetPath(); 1163 1164 json::Object response{{"uuid", uuid_str}, 1165 {"triple", triple_str}, 1166 {"file_path", file_path}, 1167 {"file_offset", static_cast<int64_t>(file_offset)}, 1168 {"file_size", static_cast<int64_t>(file_size)}}; 1169 response_array.push_back(std::move(response)); 1170 } 1171 1172 StreamString response; 1173 response.AsRawOstream() << std::move(response_array); 1174 StreamGDBRemote escaped_response; 1175 escaped_response.PutEscapedBytes(response.GetString().data(), 1176 response.GetSize()); 1177 return SendPacketNoLock(escaped_response.GetString()); 1178 } 1179 1180 void GDBRemoteCommunicationServerCommon::CreateProcessInfoResponse( 1181 const ProcessInstanceInfo &proc_info, StreamString &response) { 1182 response.Printf( 1183 "pid:%" PRIu64 ";ppid:%" PRIu64 ";uid:%i;gid:%i;euid:%i;egid:%i;", 1184 proc_info.GetProcessID(), proc_info.GetParentProcessID(), 1185 proc_info.GetUserID(), proc_info.GetGroupID(), 1186 proc_info.GetEffectiveUserID(), proc_info.GetEffectiveGroupID()); 1187 response.PutCString("name:"); 1188 response.PutStringAsRawHex8(proc_info.GetExecutableFile().GetCString()); 1189 1190 response.PutChar(';'); 1191 response.PutCString("args:"); 1192 response.PutStringAsRawHex8(proc_info.GetArg0()); 1193 for (auto &arg : proc_info.GetArguments()) { 1194 response.PutChar('-'); 1195 response.PutStringAsRawHex8(arg.ref()); 1196 } 1197 1198 response.PutChar(';'); 1199 const ArchSpec &proc_arch = proc_info.GetArchitecture(); 1200 if (proc_arch.IsValid()) { 1201 const llvm::Triple &proc_triple = proc_arch.GetTriple(); 1202 response.PutCString("triple:"); 1203 response.PutStringAsRawHex8(proc_triple.getTriple()); 1204 response.PutChar(';'); 1205 } 1206 } 1207 1208 void GDBRemoteCommunicationServerCommon:: 1209 CreateProcessInfoResponse_DebugServerStyle( 1210 const ProcessInstanceInfo &proc_info, StreamString &response) { 1211 response.Printf("pid:%" PRIx64 ";parent-pid:%" PRIx64 1212 ";real-uid:%x;real-gid:%x;effective-uid:%x;effective-gid:%x;", 1213 proc_info.GetProcessID(), proc_info.GetParentProcessID(), 1214 proc_info.GetUserID(), proc_info.GetGroupID(), 1215 proc_info.GetEffectiveUserID(), 1216 proc_info.GetEffectiveGroupID()); 1217 1218 const ArchSpec &proc_arch = proc_info.GetArchitecture(); 1219 if (proc_arch.IsValid()) { 1220 const llvm::Triple &proc_triple = proc_arch.GetTriple(); 1221 #if defined(__APPLE__) 1222 // We'll send cputype/cpusubtype. 1223 const uint32_t cpu_type = proc_arch.GetMachOCPUType(); 1224 if (cpu_type != 0) 1225 response.Printf("cputype:%" PRIx32 ";", cpu_type); 1226 1227 const uint32_t cpu_subtype = proc_arch.GetMachOCPUSubType(); 1228 if (cpu_subtype != 0) 1229 response.Printf("cpusubtype:%" PRIx32 ";", cpu_subtype); 1230 1231 const std::string vendor = proc_triple.getVendorName(); 1232 if (!vendor.empty()) 1233 response.Printf("vendor:%s;", vendor.c_str()); 1234 #else 1235 // We'll send the triple. 1236 response.PutCString("triple:"); 1237 response.PutStringAsRawHex8(proc_triple.getTriple()); 1238 response.PutChar(';'); 1239 #endif 1240 std::string ostype = proc_triple.getOSName(); 1241 // Adjust so ostype reports ios for Apple/ARM and Apple/ARM64. 1242 if (proc_triple.getVendor() == llvm::Triple::Apple) { 1243 switch (proc_triple.getArch()) { 1244 case llvm::Triple::arm: 1245 case llvm::Triple::thumb: 1246 case llvm::Triple::aarch64: 1247 case llvm::Triple::aarch64_32: 1248 ostype = "ios"; 1249 break; 1250 default: 1251 // No change. 1252 break; 1253 } 1254 } 1255 response.Printf("ostype:%s;", ostype.c_str()); 1256 1257 switch (proc_arch.GetByteOrder()) { 1258 case lldb::eByteOrderLittle: 1259 response.PutCString("endian:little;"); 1260 break; 1261 case lldb::eByteOrderBig: 1262 response.PutCString("endian:big;"); 1263 break; 1264 case lldb::eByteOrderPDP: 1265 response.PutCString("endian:pdp;"); 1266 break; 1267 default: 1268 // Nothing. 1269 break; 1270 } 1271 // In case of MIPS64, pointer size is depend on ELF ABI For N32 the pointer 1272 // size is 4 and for N64 it is 8 1273 std::string abi = proc_arch.GetTargetABI(); 1274 if (!abi.empty()) 1275 response.Printf("elf_abi:%s;", abi.c_str()); 1276 response.Printf("ptrsize:%d;", proc_arch.GetAddressByteSize()); 1277 } 1278 } 1279 1280 FileSpec GDBRemoteCommunicationServerCommon::FindModuleFile( 1281 const std::string &module_path, const ArchSpec &arch) { 1282 #ifdef __ANDROID__ 1283 return HostInfoAndroid::ResolveLibraryPath(module_path, arch); 1284 #else 1285 FileSpec file_spec(module_path); 1286 FileSystem::Instance().Resolve(file_spec); 1287 return file_spec; 1288 #endif 1289 } 1290 1291 ModuleSpec 1292 GDBRemoteCommunicationServerCommon::GetModuleInfo(llvm::StringRef module_path, 1293 llvm::StringRef triple) { 1294 ArchSpec arch(triple); 1295 1296 FileSpec req_module_path_spec(module_path); 1297 FileSystem::Instance().Resolve(req_module_path_spec); 1298 1299 const FileSpec module_path_spec = 1300 FindModuleFile(req_module_path_spec.GetPath(), arch); 1301 const ModuleSpec module_spec(module_path_spec, arch); 1302 1303 ModuleSpecList module_specs; 1304 if (!ObjectFile::GetModuleSpecifications(module_path_spec, 0, 0, 1305 module_specs)) 1306 return ModuleSpec(); 1307 1308 ModuleSpec matched_module_spec; 1309 if (!module_specs.FindMatchingModuleSpec(module_spec, matched_module_spec)) 1310 return ModuleSpec(); 1311 1312 return matched_module_spec; 1313 } 1314