contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp

   1 //===-- GDBRemoteCommunicationServerCommon.cpp ------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "GDBRemoteCommunicationServerCommon.h"
  11
  12 #include <errno.h>
  13
  14 // C Includes
  15
  16 #ifdef __APPLE__
  17 #include <TargetConditionals.h>
  18 #endif
  19
  20 // C++ Includes
  21 #include <chrono>
  22 #include <cstring>
  23
  24 // Other libraries and framework includes
  25 #include "lldb/Core/ModuleSpec.h"
  26 #include "lldb/Host/Config.h"
  27 #include "lldb/Host/File.h"
  28 #include "lldb/Host/FileSystem.h"
  29 #include "lldb/Host/Host.h"
  30 #include "lldb/Host/HostInfo.h"
  31 #include "lldb/Interpreter/Args.h"
  32 #include "lldb/Symbol/ObjectFile.h"
  33 #include "lldb/Target/FileAction.h"
  34 #include "lldb/Target/Platform.h"
  35 #include "lldb/Target/Process.h"
  36 #include "lldb/Utility/Endian.h"
  37 #include "lldb/Utility/JSON.h"
  38 #include "lldb/Utility/Log.h"
  39 #include "lldb/Utility/StreamGDBRemote.h"
  40 #include "lldb/Utility/StreamString.h"
  41 #include "llvm/ADT/Triple.h"
  42
  43 // Project includes
  44 #include "ProcessGDBRemoteLog.h"
  45 #include "Utility/StringExtractorGDBRemote.h"
  46
  47 #ifdef __ANDROID__
  48 #include "lldb/Host/android/HostInfoAndroid.h"
  49 #endif
  50
  51 #include "llvm/ADT/StringSwitch.h"
  52
  53 using namespace lldb;
  54 using namespace lldb_private;
  55 using namespace lldb_private::process_gdb_remote;
  56
  57 #ifdef __ANDROID__
  58 const static uint32_t g_default_packet_timeout_sec = 20; // seconds
  59 #else
  60 const static uint32_t g_default_packet_timeout_sec = 0; // not specified
  61 #endif
  62
  63 //----------------------------------------------------------------------
  64 // GDBRemoteCommunicationServerCommon constructor
  65 //----------------------------------------------------------------------
  66 GDBRemoteCommunicationServerCommon::GDBRemoteCommunicationServerCommon(
  67     const char *comm_name, const char *listener_name)
  68     : GDBRemoteCommunicationServer(comm_name, listener_name),
  69       m_process_launch_info(), m_process_launch_error(), m_proc_infos(),
  70       m_proc_infos_index(0), m_thread_suffix_supported(false),
  71       m_list_threads_in_stop_reply(false) {
  72   RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_A,
  73                                 &GDBRemoteCommunicationServerCommon::Handle_A);
  74   RegisterMemberFunctionHandler(
  75       StringExtractorGDBRemote::eServerPacketType_QEnvironment,
  76       &GDBRemoteCommunicationServerCommon::Handle_QEnvironment);
  77   RegisterMemberFunctionHandler(
  78       StringExtractorGDBRemote::eServerPacketType_QEnvironmentHexEncoded,
  79       &GDBRemoteCommunicationServerCommon::Handle_QEnvironmentHexEncoded);
  80   RegisterMemberFunctionHandler(
  81       StringExtractorGDBRemote::eServerPacketType_qfProcessInfo,
  82       &GDBRemoteCommunicationServerCommon::Handle_qfProcessInfo);
  83   RegisterMemberFunctionHandler(
  84       StringExtractorGDBRemote::eServerPacketType_qGroupName,
  85       &GDBRemoteCommunicationServerCommon::Handle_qGroupName);
  86   RegisterMemberFunctionHandler(
  87       StringExtractorGDBRemote::eServerPacketType_qHostInfo,
  88       &GDBRemoteCommunicationServerCommon::Handle_qHostInfo);
  89   RegisterMemberFunctionHandler(
  90       StringExtractorGDBRemote::eServerPacketType_QLaunchArch,
  91       &GDBRemoteCommunicationServerCommon::Handle_QLaunchArch);
  92   RegisterMemberFunctionHandler(
  93       StringExtractorGDBRemote::eServerPacketType_qLaunchSuccess,
  94       &GDBRemoteCommunicationServerCommon::Handle_qLaunchSuccess);
  95   RegisterMemberFunctionHandler(
  96       StringExtractorGDBRemote::eServerPacketType_QListThreadsInStopReply,
  97       &GDBRemoteCommunicationServerCommon::Handle_QListThreadsInStopReply);
  98   RegisterMemberFunctionHandler(
  99       StringExtractorGDBRemote::eServerPacketType_qEcho,
 100       &GDBRemoteCommunicationServerCommon::Handle_qEcho);
 101   RegisterMemberFunctionHandler(
 102       StringExtractorGDBRemote::eServerPacketType_qModuleInfo,
 103       &GDBRemoteCommunicationServerCommon::Handle_qModuleInfo);
 104   RegisterMemberFunctionHandler(
 105       StringExtractorGDBRemote::eServerPacketType_jModulesInfo,
 106       &GDBRemoteCommunicationServerCommon::Handle_jModulesInfo);
 107   RegisterMemberFunctionHandler(
 108       StringExtractorGDBRemote::eServerPacketType_qPlatform_chmod,
 109       &GDBRemoteCommunicationServerCommon::Handle_qPlatform_chmod);
 110   RegisterMemberFunctionHandler(
 111       StringExtractorGDBRemote::eServerPacketType_qPlatform_mkdir,
 112       &GDBRemoteCommunicationServerCommon::Handle_qPlatform_mkdir);
 113   RegisterMemberFunctionHandler(
 114       StringExtractorGDBRemote::eServerPacketType_qPlatform_shell,
 115       &GDBRemoteCommunicationServerCommon::Handle_qPlatform_shell);
 116   RegisterMemberFunctionHandler(
 117       StringExtractorGDBRemote::eServerPacketType_qProcessInfoPID,
 118       &GDBRemoteCommunicationServerCommon::Handle_qProcessInfoPID);
 119   RegisterMemberFunctionHandler(
 120       StringExtractorGDBRemote::eServerPacketType_QSetDetachOnError,
 121       &GDBRemoteCommunicationServerCommon::Handle_QSetDetachOnError);
 122   RegisterMemberFunctionHandler(
 123       StringExtractorGDBRemote::eServerPacketType_QSetSTDERR,
 124       &GDBRemoteCommunicationServerCommon::Handle_QSetSTDERR);
 125   RegisterMemberFunctionHandler(
 126       StringExtractorGDBRemote::eServerPacketType_QSetSTDIN,
 127       &GDBRemoteCommunicationServerCommon::Handle_QSetSTDIN);
 128   RegisterMemberFunctionHandler(
 129       StringExtractorGDBRemote::eServerPacketType_QSetSTDOUT,
 130       &GDBRemoteCommunicationServerCommon::Handle_QSetSTDOUT);
 131   RegisterMemberFunctionHandler(
 132       StringExtractorGDBRemote::eServerPacketType_qSpeedTest,
 133       &GDBRemoteCommunicationServerCommon::Handle_qSpeedTest);
 134   RegisterMemberFunctionHandler(
 135       StringExtractorGDBRemote::eServerPacketType_qsProcessInfo,
 136       &GDBRemoteCommunicationServerCommon::Handle_qsProcessInfo);
 137   RegisterMemberFunctionHandler(
 138       StringExtractorGDBRemote::eServerPacketType_QStartNoAckMode,
 139       &GDBRemoteCommunicationServerCommon::Handle_QStartNoAckMode);
 140   RegisterMemberFunctionHandler(
 141       StringExtractorGDBRemote::eServerPacketType_qSupported,
 142       &GDBRemoteCommunicationServerCommon::Handle_qSupported);
 143   RegisterMemberFunctionHandler(
 144       StringExtractorGDBRemote::eServerPacketType_QThreadSuffixSupported,
 145       &GDBRemoteCommunicationServerCommon::Handle_QThreadSuffixSupported);
 146   RegisterMemberFunctionHandler(
 147       StringExtractorGDBRemote::eServerPacketType_qUserName,
 148       &GDBRemoteCommunicationServerCommon::Handle_qUserName);
 149   RegisterMemberFunctionHandler(
 150       StringExtractorGDBRemote::eServerPacketType_vFile_close,
 151       &GDBRemoteCommunicationServerCommon::Handle_vFile_Close);
 152   RegisterMemberFunctionHandler(
 153       StringExtractorGDBRemote::eServerPacketType_vFile_exists,
 154       &GDBRemoteCommunicationServerCommon::Handle_vFile_Exists);
 155   RegisterMemberFunctionHandler(
 156       StringExtractorGDBRemote::eServerPacketType_vFile_md5,
 157       &GDBRemoteCommunicationServerCommon::Handle_vFile_MD5);
 158   RegisterMemberFunctionHandler(
 159       StringExtractorGDBRemote::eServerPacketType_vFile_mode,
 160       &GDBRemoteCommunicationServerCommon::Handle_vFile_Mode);
 161   RegisterMemberFunctionHandler(
 162       StringExtractorGDBRemote::eServerPacketType_vFile_open,
 163       &GDBRemoteCommunicationServerCommon::Handle_vFile_Open);
 164   RegisterMemberFunctionHandler(
 165       StringExtractorGDBRemote::eServerPacketType_vFile_pread,
 166       &GDBRemoteCommunicationServerCommon::Handle_vFile_pRead);
 167   RegisterMemberFunctionHandler(
 168       StringExtractorGDBRemote::eServerPacketType_vFile_pwrite,
 169       &GDBRemoteCommunicationServerCommon::Handle_vFile_pWrite);
 170   RegisterMemberFunctionHandler(
 171       StringExtractorGDBRemote::eServerPacketType_vFile_size,
 172       &GDBRemoteCommunicationServerCommon::Handle_vFile_Size);
 173   RegisterMemberFunctionHandler(
 174       StringExtractorGDBRemote::eServerPacketType_vFile_stat,
 175       &GDBRemoteCommunicationServerCommon::Handle_vFile_Stat);
 176   RegisterMemberFunctionHandler(
 177       StringExtractorGDBRemote::eServerPacketType_vFile_symlink,
 178       &GDBRemoteCommunicationServerCommon::Handle_vFile_symlink);
 179   RegisterMemberFunctionHandler(
 180       StringExtractorGDBRemote::eServerPacketType_vFile_unlink,
 181       &GDBRemoteCommunicationServerCommon::Handle_vFile_unlink);
 182 }
 183
 184 //----------------------------------------------------------------------
 185 // Destructor
 186 //----------------------------------------------------------------------
 187 GDBRemoteCommunicationServerCommon::~GDBRemoteCommunicationServerCommon() {}
 188
 189 GDBRemoteCommunication::PacketResult
 190 GDBRemoteCommunicationServerCommon::Handle_qHostInfo(
 191     StringExtractorGDBRemote &packet) {
 192   StreamString response;
 193
 194   // $cputype:16777223;cpusubtype:3;ostype:Darwin;vendor:apple;endian:little;ptrsize:8;#00
 195
 196   ArchSpec host_arch(HostInfo::GetArchitecture());
 197   const llvm::Triple &host_triple = host_arch.GetTriple();
 198   response.PutCString("triple:");
 199   response.PutCStringAsRawHex8(host_triple.getTriple().c_str());
 200   response.Printf(";ptrsize:%u;", host_arch.GetAddressByteSize());
 201
 202   const char *distribution_id = host_arch.GetDistributionId().AsCString();
 203   if (distribution_id) {
 204     response.PutCString("distribution_id:");
 205     response.PutCStringAsRawHex8(distribution_id);
 206     response.PutCString(";");
 207   }
 208
 209 #if defined(__APPLE__)
 210   // For parity with debugserver, we'll include the vendor key.
 211   response.PutCString("vendor:apple;");
 212
 213   // Send out MachO info.
 214   uint32_t cpu = host_arch.GetMachOCPUType();
 215   uint32_t sub = host_arch.GetMachOCPUSubType();
 216   if (cpu != LLDB_INVALID_CPUTYPE)
 217     response.Printf("cputype:%u;", cpu);
 218   if (sub != LLDB_INVALID_CPUTYPE)
 219     response.Printf("cpusubtype:%u;", sub);
 220
 221   if (cpu == ArchSpec::kCore_arm_any) {
 222 // Indicate the OS type.
 223 #if defined(TARGET_OS_TV) && TARGET_OS_TV == 1
 224     response.PutCString("ostype:tvos;");
 225 #elif defined(TARGET_OS_WATCH) && TARGET_OS_WATCH == 1
 226     response.PutCString("ostype:watchos;");
 227 #else
 228     response.PutCString("ostype:ios;");
 229 #endif
 230
 231     // On arm, we use "synchronous" watchpoints which means the exception is
 232     // delivered before the instruction executes.
 233     response.PutCString("watchpoint_exceptions_received:before;");
 234   } else {
 235     response.PutCString("ostype:macosx;");
 236     response.Printf("watchpoint_exceptions_received:after;");
 237   }
 238
 239 #else
 240   if (host_arch.GetMachine() == llvm::Triple::aarch64 ||
 241       host_arch.GetMachine() == llvm::Triple::aarch64_be ||
 242       host_arch.GetMachine() == llvm::Triple::arm ||
 243       host_arch.GetMachine() == llvm::Triple::armeb ||
 244       host_arch.GetMachine() == llvm::Triple::mips64 ||
 245       host_arch.GetMachine() == llvm::Triple::mips64el ||
 246       host_arch.GetMachine() == llvm::Triple::mips ||
 247       host_arch.GetMachine() == llvm::Triple::mipsel)
 248     response.Printf("watchpoint_exceptions_received:before;");
 249   else
 250     response.Printf("watchpoint_exceptions_received:after;");
 251 #endif
 252
 253   switch (endian::InlHostByteOrder()) {
 254   case eByteOrderBig:
 255     response.PutCString("endian:big;");
 256     break;
 257   case eByteOrderLittle:
 258     response.PutCString("endian:little;");
 259     break;
 260   case eByteOrderPDP:
 261     response.PutCString("endian:pdp;");
 262     break;
 263   default:
 264     response.PutCString("endian:unknown;");
 265     break;
 266   }
 267
 268   uint32_t major = UINT32_MAX;
 269   uint32_t minor = UINT32_MAX;
 270   uint32_t update = UINT32_MAX;
 271   if (HostInfo::GetOSVersion(major, minor, update)) {
 272     if (major != UINT32_MAX) {
 273       response.Printf("os_version:%u", major);
 274       if (minor != UINT32_MAX) {
 275         response.Printf(".%u", minor);
 276         if (update != UINT32_MAX)
 277           response.Printf(".%u", update);
 278       }
 279       response.PutChar(';');
 280     }
 281   }
 282
 283   std::string s;
 284   if (HostInfo::GetOSBuildString(s)) {
 285     response.PutCString("os_build:");
 286     response.PutCStringAsRawHex8(s.c_str());
 287     response.PutChar(';');
 288   }
 289   if (HostInfo::GetOSKernelDescription(s)) {
 290     response.PutCString("os_kernel:");
 291     response.PutCStringAsRawHex8(s.c_str());
 292     response.PutChar(';');
 293   }
 294
 295 #if defined(__APPLE__)
 296
 297 #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__)
 298   // For iOS devices, we are connected through a USB Mux so we never pretend
 299   // to actually have a hostname as far as the remote lldb that is connecting
 300   // to this lldb-platform is concerned
 301   response.PutCString("hostname:");
 302   response.PutCStringAsRawHex8("127.0.0.1");
 303   response.PutChar(';');
 304 #else  // #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__)
 305   if (HostInfo::GetHostname(s)) {
 306     response.PutCString("hostname:");
 307     response.PutCStringAsRawHex8(s.c_str());
 308     response.PutChar(';');
 309   }
 310 #endif // #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__)
 311
 312 #else  // #if defined(__APPLE__)
 313   if (HostInfo::GetHostname(s)) {
 314     response.PutCString("hostname:");
 315     response.PutCStringAsRawHex8(s.c_str());
 316     response.PutChar(';');
 317   }
 318 #endif // #if defined(__APPLE__)
 319
 320   if (g_default_packet_timeout_sec > 0)
 321     response.Printf("default_packet_timeout:%u;", g_default_packet_timeout_sec);
 322
 323   return SendPacketNoLock(response.GetString());
 324 }
 325
 326 GDBRemoteCommunication::PacketResult
 327 GDBRemoteCommunicationServerCommon::Handle_qProcessInfoPID(
 328     StringExtractorGDBRemote &packet) {
 329   // Packet format: "qProcessInfoPID:%i" where %i is the pid
 330   packet.SetFilePos(::strlen("qProcessInfoPID:"));
 331   lldb::pid_t pid = packet.GetU32(LLDB_INVALID_PROCESS_ID);
 332   if (pid != LLDB_INVALID_PROCESS_ID) {
 333     ProcessInstanceInfo proc_info;
 334     if (Host::GetProcessInfo(pid, proc_info)) {
 335       StreamString response;
 336       CreateProcessInfoResponse(proc_info, response);
 337       return SendPacketNoLock(response.GetString());
 338     }
 339   }
 340   return SendErrorResponse(1);
 341 }
 342
 343 GDBRemoteCommunication::PacketResult
 344 GDBRemoteCommunicationServerCommon::Handle_qfProcessInfo(
 345     StringExtractorGDBRemote &packet) {
 346   m_proc_infos_index = 0;
 347   m_proc_infos.Clear();
 348
 349   ProcessInstanceInfoMatch match_info;
 350   packet.SetFilePos(::strlen("qfProcessInfo"));
 351   if (packet.GetChar() == ':') {
 352     llvm::StringRef key;
 353     llvm::StringRef value;
 354     while (packet.GetNameColonValue(key, value)) {
 355       bool success = true;
 356       if (key.equals("name")) {
 357         StringExtractor extractor(value);
 358         std::string file;
 359         extractor.GetHexByteString(file);
 360         match_info.GetProcessInfo().GetExecutableFile().SetFile(file, false);
 361       } else if (key.equals("name_match")) {
 362         NameMatch name_match = llvm::StringSwitch<NameMatch>(value)
 363                                    .Case("equals", NameMatch::Equals)
 364                                    .Case("starts_with", NameMatch::StartsWith)
 365                                    .Case("ends_with", NameMatch::EndsWith)
 366                                    .Case("contains", NameMatch::Contains)
 367                                    .Case("regex", NameMatch::RegularExpression)
 368                                    .Default(NameMatch::Ignore);
 369         match_info.SetNameMatchType(name_match);
 370         if (name_match == NameMatch::Ignore)
 371           return SendErrorResponse(2);
 372       } else if (key.equals("pid")) {
 373         lldb::pid_t pid = LLDB_INVALID_PROCESS_ID;
 374         if (value.getAsInteger(0, pid))
 375           return SendErrorResponse(2);
 376         match_info.GetProcessInfo().SetProcessID(pid);
 377       } else if (key.equals("parent_pid")) {
 378         lldb::pid_t pid = LLDB_INVALID_PROCESS_ID;
 379         if (value.getAsInteger(0, pid))
 380           return SendErrorResponse(2);
 381         match_info.GetProcessInfo().SetParentProcessID(pid);
 382       } else if (key.equals("uid")) {
 383         uint32_t uid = UINT32_MAX;
 384         if (value.getAsInteger(0, uid))
 385           return SendErrorResponse(2);
 386         match_info.GetProcessInfo().SetUserID(uid);
 387       } else if (key.equals("gid")) {
 388         uint32_t gid = UINT32_MAX;
 389         if (value.getAsInteger(0, gid))
 390           return SendErrorResponse(2);
 391         match_info.GetProcessInfo().SetGroupID(gid);
 392       } else if (key.equals("euid")) {
 393         uint32_t uid = UINT32_MAX;
 394         if (value.getAsInteger(0, uid))
 395           return SendErrorResponse(2);
 396         match_info.GetProcessInfo().SetEffectiveUserID(uid);
 397       } else if (key.equals("egid")) {
 398         uint32_t gid = UINT32_MAX;
 399         if (value.getAsInteger(0, gid))
 400           return SendErrorResponse(2);
 401         match_info.GetProcessInfo().SetEffectiveGroupID(gid);
 402       } else if (key.equals("all_users")) {
 403         match_info.SetMatchAllUsers(
 404             Args::StringToBoolean(value, false, &success));
 405       } else if (key.equals("triple")) {
 406         match_info.GetProcessInfo().GetArchitecture() =
 407             HostInfo::GetAugmentedArchSpec(value);
 408       } else {
 409         success = false;
 410       }
 411
 412       if (!success)
 413         return SendErrorResponse(2);
 414     }
 415   }
 416
 417   if (Host::FindProcesses(match_info, m_proc_infos)) {
 418     // We found something, return the first item by calling the get
 419     // subsequent process info packet handler...
 420     return Handle_qsProcessInfo(packet);
 421   }
 422   return SendErrorResponse(3);
 423 }
 424
 425 GDBRemoteCommunication::PacketResult
 426 GDBRemoteCommunicationServerCommon::Handle_qsProcessInfo(
 427     StringExtractorGDBRemote &packet) {
 428   if (m_proc_infos_index < m_proc_infos.GetSize()) {
 429     StreamString response;
 430     CreateProcessInfoResponse(
 431         m_proc_infos.GetProcessInfoAtIndex(m_proc_infos_index), response);
 432     ++m_proc_infos_index;
 433     return SendPacketNoLock(response.GetString());
 434   }
 435   return SendErrorResponse(4);
 436 }
 437
 438 GDBRemoteCommunication::PacketResult
 439 GDBRemoteCommunicationServerCommon::Handle_qUserName(
 440     StringExtractorGDBRemote &packet) {
 441 #if !defined(LLDB_DISABLE_POSIX)
 442   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 443   if (log)
 444     log->Printf("GDBRemoteCommunicationServerCommon::%s begin", __FUNCTION__);
 445
 446   // Packet format: "qUserName:%i" where %i is the uid
 447   packet.SetFilePos(::strlen("qUserName:"));
 448   uint32_t uid = packet.GetU32(UINT32_MAX);
 449   if (uid != UINT32_MAX) {
 450     std::string name;
 451     if (HostInfo::LookupUserName(uid, name)) {
 452       StreamString response;
 453       response.PutCStringAsRawHex8(name.c_str());
 454       return SendPacketNoLock(response.GetString());
 455     }
 456   }
 457   if (log)
 458     log->Printf("GDBRemoteCommunicationServerCommon::%s end", __FUNCTION__);
 459 #endif
 460   return SendErrorResponse(5);
 461 }
 462
 463 GDBRemoteCommunication::PacketResult
 464 GDBRemoteCommunicationServerCommon::Handle_qGroupName(
 465     StringExtractorGDBRemote &packet) {
 466 #if !defined(LLDB_DISABLE_POSIX)
 467   // Packet format: "qGroupName:%i" where %i is the gid
 468   packet.SetFilePos(::strlen("qGroupName:"));
 469   uint32_t gid = packet.GetU32(UINT32_MAX);
 470   if (gid != UINT32_MAX) {
 471     std::string name;
 472     if (HostInfo::LookupGroupName(gid, name)) {
 473       StreamString response;
 474       response.PutCStringAsRawHex8(name.c_str());
 475       return SendPacketNoLock(response.GetString());
 476     }
 477   }
 478 #endif
 479   return SendErrorResponse(6);
 480 }
 481
 482 GDBRemoteCommunication::PacketResult
 483 GDBRemoteCommunicationServerCommon::Handle_qSpeedTest(
 484     StringExtractorGDBRemote &packet) {
 485   packet.SetFilePos(::strlen("qSpeedTest:"));
 486
 487   llvm::StringRef key;
 488   llvm::StringRef value;
 489   bool success = packet.GetNameColonValue(key, value);
 490   if (success && key.equals("response_size")) {
 491     uint32_t response_size = 0;
 492     if (!value.getAsInteger(0, response_size)) {
 493       if (response_size == 0)
 494         return SendOKResponse();
 495       StreamString response;
 496       uint32_t bytes_left = response_size;
 497       response.PutCString("data:");
 498       while (bytes_left > 0) {
 499         if (bytes_left >= 26) {
 500           response.PutCString("ABCDEFGHIJKLMNOPQRSTUVWXYZ");
 501           bytes_left -= 26;
 502         } else {
 503           response.Printf("%*.*s;", bytes_left, bytes_left,
 504                           "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
 505           bytes_left = 0;
 506         }
 507       }
 508       return SendPacketNoLock(response.GetString());
 509     }
 510   }
 511   return SendErrorResponse(7);
 512 }
 513
 514 GDBRemoteCommunication::PacketResult
 515 GDBRemoteCommunicationServerCommon::Handle_vFile_Open(
 516     StringExtractorGDBRemote &packet) {
 517   packet.SetFilePos(::strlen("vFile:open:"));
 518   std::string path;
 519   packet.GetHexByteStringTerminatedBy(path, ',');
 520   if (!path.empty()) {
 521     if (packet.GetChar() == ',') {
 522       uint32_t flags =
 523           File::ConvertOpenOptionsForPOSIXOpen(packet.GetHexMaxU32(false, 0));
 524       if (packet.GetChar() == ',') {
 525         mode_t mode = packet.GetHexMaxU32(false, 0600);
 526         Status error;
 527         const FileSpec path_spec{path, true};
 528         int fd = ::open(path_spec.GetCString(), flags, mode);
 529         const int save_errno = fd == -1 ? errno : 0;
 530         StreamString response;
 531         response.PutChar('F');
 532         response.Printf("%i", fd);
 533         if (save_errno)
 534           response.Printf(",%i", save_errno);
 535         return SendPacketNoLock(response.GetString());
 536       }
 537     }
 538   }
 539   return SendErrorResponse(18);
 540 }
 541
 542 GDBRemoteCommunication::PacketResult
 543 GDBRemoteCommunicationServerCommon::Handle_vFile_Close(
 544     StringExtractorGDBRemote &packet) {
 545   packet.SetFilePos(::strlen("vFile:close:"));
 546   int fd = packet.GetS32(-1);
 547   Status error;
 548   int err = -1;
 549   int save_errno = 0;
 550   if (fd >= 0) {
 551     err = close(fd);
 552     save_errno = err == -1 ? errno : 0;
 553   } else {
 554     save_errno = EINVAL;
 555   }
 556   StreamString response;
 557   response.PutChar('F');
 558   response.Printf("%i", err);
 559   if (save_errno)
 560     response.Printf(",%i", save_errno);
 561   return SendPacketNoLock(response.GetString());
 562 }
 563
 564 GDBRemoteCommunication::PacketResult
 565 GDBRemoteCommunicationServerCommon::Handle_vFile_pRead(
 566     StringExtractorGDBRemote &packet) {
 567 #ifdef _WIN32
 568   // Not implemented on Windows
 569   return SendUnimplementedResponse(
 570       "GDBRemoteCommunicationServerCommon::Handle_vFile_pRead() unimplemented");
 571 #else
 572   StreamGDBRemote response;
 573   packet.SetFilePos(::strlen("vFile:pread:"));
 574   int fd = packet.GetS32(-1);
 575   if (packet.GetChar() == ',') {
 576     uint64_t count = packet.GetU64(UINT64_MAX);
 577     if (packet.GetChar() == ',') {
 578       uint64_t offset = packet.GetU64(UINT32_MAX);
 579       if (count == UINT64_MAX) {
 580         response.Printf("F-1:%i", EINVAL);
 581         return SendPacketNoLock(response.GetString());
 582       }
 583
 584       std::string buffer(count, 0);
 585       const ssize_t bytes_read = ::pread(fd, &buffer[0], buffer.size(), offset);
 586       const int save_errno = bytes_read == -1 ? errno : 0;
 587       response.PutChar('F');
 588       response.Printf("%zi", bytes_read);
 589       if (save_errno)
 590         response.Printf(",%i", save_errno);
 591       else {
 592         response.PutChar(';');
 593         response.PutEscapedBytes(&buffer[0], bytes_read);
 594       }
 595       return SendPacketNoLock(response.GetString());
 596     }
 597   }
 598   return SendErrorResponse(21);
 599
 600 #endif
 601 }
 602
 603 GDBRemoteCommunication::PacketResult
 604 GDBRemoteCommunicationServerCommon::Handle_vFile_pWrite(
 605     StringExtractorGDBRemote &packet) {
 606 #ifdef _WIN32
 607   return SendUnimplementedResponse("GDBRemoteCommunicationServerCommon::Handle_"
 608                                    "vFile_pWrite() unimplemented");
 609 #else
 610   packet.SetFilePos(::strlen("vFile:pwrite:"));
 611
 612   StreamGDBRemote response;
 613   response.PutChar('F');
 614
 615   int fd = packet.GetU32(UINT32_MAX);
 616   if (packet.GetChar() == ',') {
 617     off_t offset = packet.GetU64(UINT32_MAX);
 618     if (packet.GetChar() == ',') {
 619       std::string buffer;
 620       if (packet.GetEscapedBinaryData(buffer)) {
 621         const ssize_t bytes_written =
 622             ::pwrite(fd, buffer.data(), buffer.size(), offset);
 623         const int save_errno = bytes_written == -1 ? errno : 0;
 624         response.Printf("%zi", bytes_written);
 625         if (save_errno)
 626           response.Printf(",%i", save_errno);
 627       } else {
 628         response.Printf("-1,%i", EINVAL);
 629       }
 630       return SendPacketNoLock(response.GetString());
 631     }
 632   }
 633   return SendErrorResponse(27);
 634 #endif
 635 }
 636
 637 GDBRemoteCommunication::PacketResult
 638 GDBRemoteCommunicationServerCommon::Handle_vFile_Size(
 639     StringExtractorGDBRemote &packet) {
 640   packet.SetFilePos(::strlen("vFile:size:"));
 641   std::string path;
 642   packet.GetHexByteString(path);
 643   if (!path.empty()) {
 644     uint64_t Size;
 645     if (llvm::sys::fs::file_size(path, Size))
 646       return SendErrorResponse(5);
 647     StreamString response;
 648     response.PutChar('F');
 649     response.PutHex64(Size);
 650     if (Size == UINT64_MAX) {
 651       response.PutChar(',');
 652       response.PutHex64(Size); // TODO: replace with Host::GetSyswideErrorCode()
 653     }
 654     return SendPacketNoLock(response.GetString());
 655   }
 656   return SendErrorResponse(22);
 657 }
 658
 659 GDBRemoteCommunication::PacketResult
 660 GDBRemoteCommunicationServerCommon::Handle_vFile_Mode(
 661     StringExtractorGDBRemote &packet) {
 662   packet.SetFilePos(::strlen("vFile:mode:"));
 663   std::string path;
 664   packet.GetHexByteString(path);
 665   if (!path.empty()) {
 666     Status error;
 667     const uint32_t mode = File::GetPermissions(FileSpec{path, true}, error);
 668     StreamString response;
 669     response.Printf("F%u", mode);
 670     if (mode == 0 || error.Fail())
 671       response.Printf(",%i", (int)error.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   Status error = FileSystem::Symlink(FileSpec{src, true}, FileSpec{dst, false});
 706   StreamString response;
 707   response.Printf("F%u,%u", 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%u,%u", 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       uint32_t timeout = 10;
 735       if (packet.GetChar() == ',')
 736         packet.GetHexByteString(working_dir);
 737       int status, signo;
 738       std::string output;
 739       Status err =
 740           Host::RunShellCommand(path.c_str(), FileSpec{working_dir, true},
 741                                 &status, &signo, &output, timeout);
 742       StreamGDBRemote response;
 743       if (err.Fail()) {
 744         response.PutCString("F,");
 745         response.PutHex32(UINT32_MAX);
 746       } else {
 747         response.PutCString("F,");
 748         response.PutHex32(status);
 749         response.PutChar(',');
 750         response.PutHex32(signo);
 751         response.PutChar(',');
 752         response.PutEscapedBytes(output.c_str(), output.size());
 753       }
 754       return SendPacketNoLock(response.GetString());
 755     }
 756   }
 757   return SendErrorResponse(24);
 758 }
 759
 760 GDBRemoteCommunication::PacketResult
 761 GDBRemoteCommunicationServerCommon::Handle_vFile_Stat(
 762     StringExtractorGDBRemote &packet) {
 763   return SendUnimplementedResponse(
 764       "GDBRemoteCommunicationServerCommon::Handle_vFile_Stat() unimplemented");
 765 }
 766
 767 GDBRemoteCommunication::PacketResult
 768 GDBRemoteCommunicationServerCommon::Handle_vFile_MD5(
 769     StringExtractorGDBRemote &packet) {
 770   packet.SetFilePos(::strlen("vFile:MD5:"));
 771   std::string path;
 772   packet.GetHexByteString(path);
 773   if (!path.empty()) {
 774     StreamGDBRemote response;
 775     auto Result = llvm::sys::fs::md5_contents(path);
 776     if (!Result) {
 777       response.PutCString("F,");
 778       response.PutCString("x");
 779     } else {
 780       response.PutCString("F,");
 781       response.PutHex64(Result->low());
 782       response.PutHex64(Result->high());
 783     }
 784     return SendPacketNoLock(response.GetString());
 785   }
 786   return SendErrorResponse(25);
 787 }
 788
 789 GDBRemoteCommunication::PacketResult
 790 GDBRemoteCommunicationServerCommon::Handle_qPlatform_mkdir(
 791     StringExtractorGDBRemote &packet) {
 792   packet.SetFilePos(::strlen("qPlatform_mkdir:"));
 793   mode_t mode = packet.GetHexMaxU32(false, UINT32_MAX);
 794   if (packet.GetChar() == ',') {
 795     std::string path;
 796     packet.GetHexByteString(path);
 797     Status error(llvm::sys::fs::create_directory(path, mode));
 798
 799     StreamGDBRemote response;
 800     response.Printf("F%u", error.GetError());
 801
 802     return SendPacketNoLock(response.GetString());
 803   }
 804   return SendErrorResponse(20);
 805 }
 806
 807 GDBRemoteCommunication::PacketResult
 808 GDBRemoteCommunicationServerCommon::Handle_qPlatform_chmod(
 809     StringExtractorGDBRemote &packet) {
 810   packet.SetFilePos(::strlen("qPlatform_chmod:"));
 811
 812   auto perms =
 813       static_cast<llvm::sys::fs::perms>(packet.GetHexMaxU32(false, UINT32_MAX));
 814   if (packet.GetChar() == ',') {
 815     std::string path;
 816     packet.GetHexByteString(path);
 817     Status error(llvm::sys::fs::setPermissions(path, perms));
 818
 819     StreamGDBRemote response;
 820     response.Printf("F%u", error.GetError());
 821
 822     return SendPacketNoLock(response.GetString());
 823   }
 824   return SendErrorResponse(19);
 825 }
 826
 827 GDBRemoteCommunication::PacketResult
 828 GDBRemoteCommunicationServerCommon::Handle_qSupported(
 829     StringExtractorGDBRemote &packet) {
 830   StreamGDBRemote response;
 831
 832   // Features common to lldb-platform and llgs.
 833   uint32_t max_packet_size = 128 * 1024; // 128KBytes is a reasonable max packet
 834                                          // size--debugger can always use less
 835   response.Printf("PacketSize=%x", max_packet_size);
 836
 837   response.PutCString(";QStartNoAckMode+");
 838   response.PutCString(";QThreadSuffixSupported+");
 839   response.PutCString(";QListThreadsInStopReply+");
 840   response.PutCString(";qEcho+");
 841 #if defined(__linux__) || defined(__NetBSD__)
 842   response.PutCString(";QPassSignals+");
 843   response.PutCString(";qXfer:auxv:read+");
 844 #endif
 845
 846   return SendPacketNoLock(response.GetString());
 847 }
 848
 849 GDBRemoteCommunication::PacketResult
 850 GDBRemoteCommunicationServerCommon::Handle_QThreadSuffixSupported(
 851     StringExtractorGDBRemote &packet) {
 852   m_thread_suffix_supported = true;
 853   return SendOKResponse();
 854 }
 855
 856 GDBRemoteCommunication::PacketResult
 857 GDBRemoteCommunicationServerCommon::Handle_QListThreadsInStopReply(
 858     StringExtractorGDBRemote &packet) {
 859   m_list_threads_in_stop_reply = true;
 860   return SendOKResponse();
 861 }
 862
 863 GDBRemoteCommunication::PacketResult
 864 GDBRemoteCommunicationServerCommon::Handle_QSetDetachOnError(
 865     StringExtractorGDBRemote &packet) {
 866   packet.SetFilePos(::strlen("QSetDetachOnError:"));
 867   if (packet.GetU32(0))
 868     m_process_launch_info.GetFlags().Set(eLaunchFlagDetachOnError);
 869   else
 870     m_process_launch_info.GetFlags().Clear(eLaunchFlagDetachOnError);
 871   return SendOKResponse();
 872 }
 873
 874 GDBRemoteCommunication::PacketResult
 875 GDBRemoteCommunicationServerCommon::Handle_QStartNoAckMode(
 876     StringExtractorGDBRemote &packet) {
 877   // Send response first before changing m_send_acks to we ack this packet
 878   PacketResult packet_result = SendOKResponse();
 879   m_send_acks = false;
 880   return packet_result;
 881 }
 882
 883 GDBRemoteCommunication::PacketResult
 884 GDBRemoteCommunicationServerCommon::Handle_QSetSTDIN(
 885     StringExtractorGDBRemote &packet) {
 886   packet.SetFilePos(::strlen("QSetSTDIN:"));
 887   FileAction file_action;
 888   std::string path;
 889   packet.GetHexByteString(path);
 890   const bool read = true;
 891   const bool write = false;
 892   if (file_action.Open(STDIN_FILENO, FileSpec{path, false}, read, write)) {
 893     m_process_launch_info.AppendFileAction(file_action);
 894     return SendOKResponse();
 895   }
 896   return SendErrorResponse(15);
 897 }
 898
 899 GDBRemoteCommunication::PacketResult
 900 GDBRemoteCommunicationServerCommon::Handle_QSetSTDOUT(
 901     StringExtractorGDBRemote &packet) {
 902   packet.SetFilePos(::strlen("QSetSTDOUT:"));
 903   FileAction file_action;
 904   std::string path;
 905   packet.GetHexByteString(path);
 906   const bool read = false;
 907   const bool write = true;
 908   if (file_action.Open(STDOUT_FILENO, FileSpec{path, false}, read, write)) {
 909     m_process_launch_info.AppendFileAction(file_action);
 910     return SendOKResponse();
 911   }
 912   return SendErrorResponse(16);
 913 }
 914
 915 GDBRemoteCommunication::PacketResult
 916 GDBRemoteCommunicationServerCommon::Handle_QSetSTDERR(
 917     StringExtractorGDBRemote &packet) {
 918   packet.SetFilePos(::strlen("QSetSTDERR:"));
 919   FileAction file_action;
 920   std::string path;
 921   packet.GetHexByteString(path);
 922   const bool read = false;
 923   const bool write = true;
 924   if (file_action.Open(STDERR_FILENO, FileSpec{path, false}, read, write)) {
 925     m_process_launch_info.AppendFileAction(file_action);
 926     return SendOKResponse();
 927   }
 928   return SendErrorResponse(17);
 929 }
 930
 931 GDBRemoteCommunication::PacketResult
 932 GDBRemoteCommunicationServerCommon::Handle_qLaunchSuccess(
 933     StringExtractorGDBRemote &packet) {
 934   if (m_process_launch_error.Success())
 935     return SendOKResponse();
 936   StreamString response;
 937   response.PutChar('E');
 938   response.PutCString(m_process_launch_error.AsCString("<unknown error>"));
 939   return SendPacketNoLock(response.GetString());
 940 }
 941
 942 GDBRemoteCommunication::PacketResult
 943 GDBRemoteCommunicationServerCommon::Handle_QEnvironment(
 944     StringExtractorGDBRemote &packet) {
 945   packet.SetFilePos(::strlen("QEnvironment:"));
 946   const uint32_t bytes_left = packet.GetBytesLeft();
 947   if (bytes_left > 0) {
 948     m_process_launch_info.GetEnvironmentEntries().AppendArgument(
 949         llvm::StringRef::withNullAsEmpty(packet.Peek()));
 950     return SendOKResponse();
 951   }
 952   return SendErrorResponse(12);
 953 }
 954
 955 GDBRemoteCommunication::PacketResult
 956 GDBRemoteCommunicationServerCommon::Handle_QEnvironmentHexEncoded(
 957     StringExtractorGDBRemote &packet) {
 958   packet.SetFilePos(::strlen("QEnvironmentHexEncoded:"));
 959   const uint32_t bytes_left = packet.GetBytesLeft();
 960   if (bytes_left > 0) {
 961     std::string str;
 962     packet.GetHexByteString(str);
 963     m_process_launch_info.GetEnvironmentEntries().AppendArgument(str);
 964     return SendOKResponse();
 965   }
 966   return SendErrorResponse(12);
 967 }
 968
 969 GDBRemoteCommunication::PacketResult
 970 GDBRemoteCommunicationServerCommon::Handle_QLaunchArch(
 971     StringExtractorGDBRemote &packet) {
 972   packet.SetFilePos(::strlen("QLaunchArch:"));
 973   const uint32_t bytes_left = packet.GetBytesLeft();
 974   if (bytes_left > 0) {
 975     const char *arch_triple = packet.Peek();
 976     m_process_launch_info.SetArchitecture(HostInfo::GetAugmentedArchSpec(arch_triple));
 977     return SendOKResponse();
 978   }
 979   return SendErrorResponse(13);
 980 }
 981
 982 GDBRemoteCommunication::PacketResult
 983 GDBRemoteCommunicationServerCommon::Handle_A(StringExtractorGDBRemote &packet) {
 984   // The 'A' packet is the most over designed packet ever here with
 985   // redundant argument indexes, redundant argument lengths and needed hex
 986   // encoded argument string values. Really all that is needed is a comma
 987   // separated hex encoded argument value list, but we will stay true to the
 988   // documented version of the 'A' packet here...
 989
 990   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 991   int actual_arg_index = 0;
 992
 993   packet.SetFilePos(1); // Skip the 'A'
 994   bool success = true;
 995   while (success && packet.GetBytesLeft() > 0) {
 996     // Decode the decimal argument string length. This length is the
 997     // number of hex nibbles in the argument string value.
 998     const uint32_t arg_len = packet.GetU32(UINT32_MAX);
 999     if (arg_len == UINT32_MAX)
1000       success = false;
1001     else {
1002       // Make sure the argument hex string length is followed by a comma
1003       if (packet.GetChar() != ',')
1004         success = false;
1005       else {
1006         // Decode the argument index. We ignore this really because
1007         // who would really send down the arguments in a random order???
1008         const uint32_t arg_idx = packet.GetU32(UINT32_MAX);
1009         if (arg_idx == UINT32_MAX)
1010           success = false;
1011         else {
1012           // Make sure the argument index is followed by a comma
1013           if (packet.GetChar() != ',')
1014             success = false;
1015           else {
1016             // Decode the argument string value from hex bytes
1017             // back into a UTF8 string and make sure the length
1018             // matches the one supplied in the packet
1019             std::string arg;
1020             if (packet.GetHexByteStringFixedLength(arg, arg_len) !=
1021                 (arg_len / 2))
1022               success = false;
1023             else {
1024               // If there are any bytes left
1025               if (packet.GetBytesLeft()) {
1026                 if (packet.GetChar() != ',')
1027                   success = false;
1028               }
1029
1030               if (success) {
1031                 if (arg_idx == 0)
1032                   m_process_launch_info.GetExecutableFile().SetFile(arg, false);
1033                 m_process_launch_info.GetArguments().AppendArgument(arg);
1034                 if (log)
1035                   log->Printf("LLGSPacketHandler::%s added arg %d: \"%s\"",
1036                               __FUNCTION__, actual_arg_index, arg.c_str());
1037                 ++actual_arg_index;
1038               }
1039             }
1040           }
1041         }
1042       }
1043     }
1044   }
1045
1046   if (success) {
1047     m_process_launch_error = LaunchProcess();
1048     if (m_process_launch_error.Success())
1049       return SendOKResponse();
1050     LLDB_LOG(log, "failed to launch exe: {0}", m_process_launch_error);
1051   }
1052   return SendErrorResponse(8);
1053 }
1054
1055 GDBRemoteCommunication::PacketResult
1056 GDBRemoteCommunicationServerCommon::Handle_qEcho(
1057     StringExtractorGDBRemote &packet) {
1058   // Just echo back the exact same packet for qEcho...
1059   return SendPacketNoLock(packet.GetStringRef());
1060 }
1061
1062 GDBRemoteCommunication::PacketResult
1063 GDBRemoteCommunicationServerCommon::Handle_qModuleInfo(
1064     StringExtractorGDBRemote &packet) {
1065   packet.SetFilePos(::strlen("qModuleInfo:"));
1066
1067   std::string module_path;
1068   packet.GetHexByteStringTerminatedBy(module_path, ';');
1069   if (module_path.empty())
1070     return SendErrorResponse(1);
1071
1072   if (packet.GetChar() != ';')
1073     return SendErrorResponse(2);
1074
1075   std::string triple;
1076   packet.GetHexByteString(triple);
1077
1078   ModuleSpec matched_module_spec = GetModuleInfo(module_path, triple);
1079   if (!matched_module_spec.GetFileSpec())
1080     return SendErrorResponse(3);
1081
1082   const auto file_offset = matched_module_spec.GetObjectOffset();
1083   const auto file_size = matched_module_spec.GetObjectSize();
1084   const auto uuid_str = matched_module_spec.GetUUID().GetAsString("");
1085
1086   StreamGDBRemote response;
1087
1088   if (uuid_str.empty()) {
1089     auto Result = llvm::sys::fs::md5_contents(matched_module_spec.GetFileSpec().GetPath());
1090     if (!Result)
1091       return SendErrorResponse(5);
1092     response.PutCString("md5:");
1093     response.PutCStringAsRawHex8(Result->digest().c_str());
1094   } else {
1095     response.PutCString("uuid:");
1096     response.PutCStringAsRawHex8(uuid_str.c_str());
1097   }
1098   response.PutChar(';');
1099
1100   const auto &module_arch = matched_module_spec.GetArchitecture();
1101   response.PutCString("triple:");
1102   response.PutCStringAsRawHex8(module_arch.GetTriple().getTriple().c_str());
1103   response.PutChar(';');
1104
1105   response.PutCString("file_path:");
1106   response.PutCStringAsRawHex8(matched_module_spec.GetFileSpec().GetCString());
1107   response.PutChar(';');
1108   response.PutCString("file_offset:");
1109   response.PutHex64(file_offset);
1110   response.PutChar(';');
1111   response.PutCString("file_size:");
1112   response.PutHex64(file_size);
1113   response.PutChar(';');
1114
1115   return SendPacketNoLock(response.GetString());
1116 }
1117
1118 GDBRemoteCommunication::PacketResult
1119 GDBRemoteCommunicationServerCommon::Handle_jModulesInfo(
1120     StringExtractorGDBRemote &packet) {
1121   packet.SetFilePos(::strlen("jModulesInfo:"));
1122
1123   StructuredData::ObjectSP object_sp = StructuredData::ParseJSON(packet.Peek());
1124   if (!object_sp)
1125     return SendErrorResponse(1);
1126
1127   StructuredData::Array *packet_array = object_sp->GetAsArray();
1128   if (!packet_array)
1129     return SendErrorResponse(2);
1130
1131   JSONArray::SP response_array_sp = std::make_shared<JSONArray>();
1132   for (size_t i = 0; i < packet_array->GetSize(); ++i) {
1133     StructuredData::Dictionary *query =
1134         packet_array->GetItemAtIndex(i)->GetAsDictionary();
1135     if (!query)
1136       continue;
1137     llvm::StringRef file, triple;
1138     if (!query->GetValueForKeyAsString("file", file) ||
1139         !query->GetValueForKeyAsString("triple", triple))
1140       continue;
1141
1142     ModuleSpec matched_module_spec = GetModuleInfo(file, triple);
1143     if (!matched_module_spec.GetFileSpec())
1144       continue;
1145
1146     const auto file_offset = matched_module_spec.GetObjectOffset();
1147     const auto file_size = matched_module_spec.GetObjectSize();
1148     const auto uuid_str = matched_module_spec.GetUUID().GetAsString("");
1149
1150     if (uuid_str.empty())
1151       continue;
1152
1153     JSONObject::SP response = std::make_shared<JSONObject>();
1154     response_array_sp->AppendObject(response);
1155     response->SetObject("uuid", std::make_shared<JSONString>(uuid_str));
1156     response->SetObject(
1157         "triple",
1158         std::make_shared<JSONString>(
1159             matched_module_spec.GetArchitecture().GetTriple().getTriple()));
1160     response->SetObject("file_path",
1161                         std::make_shared<JSONString>(
1162                             matched_module_spec.GetFileSpec().GetPath()));
1163     response->SetObject("file_offset",
1164                         std::make_shared<JSONNumber>(file_offset));
1165     response->SetObject("file_size", std::make_shared<JSONNumber>(file_size));
1166   }
1167
1168   StreamString response;
1169   response_array_sp->Write(response);
1170   StreamGDBRemote escaped_response;
1171   escaped_response.PutEscapedBytes(response.GetString().data(),
1172                                    response.GetSize());
1173   return SendPacketNoLock(escaped_response.GetString());
1174 }
1175
1176 void GDBRemoteCommunicationServerCommon::CreateProcessInfoResponse(
1177     const ProcessInstanceInfo &proc_info, StreamString &response) {
1178   response.Printf(
1179       "pid:%" PRIu64 ";ppid:%" PRIu64 ";uid:%i;gid:%i;euid:%i;egid:%i;",
1180       proc_info.GetProcessID(), proc_info.GetParentProcessID(),
1181       proc_info.GetUserID(), proc_info.GetGroupID(),
1182       proc_info.GetEffectiveUserID(), proc_info.GetEffectiveGroupID());
1183   response.PutCString("name:");
1184   response.PutCStringAsRawHex8(proc_info.GetExecutableFile().GetCString());
1185   response.PutChar(';');
1186   const ArchSpec &proc_arch = proc_info.GetArchitecture();
1187   if (proc_arch.IsValid()) {
1188     const llvm::Triple &proc_triple = proc_arch.GetTriple();
1189     response.PutCString("triple:");
1190     response.PutCStringAsRawHex8(proc_triple.getTriple().c_str());
1191     response.PutChar(';');
1192   }
1193 }
1194
1195 void GDBRemoteCommunicationServerCommon::
1196     CreateProcessInfoResponse_DebugServerStyle(
1197         const ProcessInstanceInfo &proc_info, StreamString &response) {
1198   response.Printf("pid:%" PRIx64 ";parent-pid:%" PRIx64
1199                   ";real-uid:%x;real-gid:%x;effective-uid:%x;effective-gid:%x;",
1200                   proc_info.GetProcessID(), proc_info.GetParentProcessID(),
1201                   proc_info.GetUserID(), proc_info.GetGroupID(),
1202                   proc_info.GetEffectiveUserID(),
1203                   proc_info.GetEffectiveGroupID());
1204
1205   const ArchSpec &proc_arch = proc_info.GetArchitecture();
1206   if (proc_arch.IsValid()) {
1207     const llvm::Triple &proc_triple = proc_arch.GetTriple();
1208 #if defined(__APPLE__)
1209     // We'll send cputype/cpusubtype.
1210     const uint32_t cpu_type = proc_arch.GetMachOCPUType();
1211     if (cpu_type != 0)
1212       response.Printf("cputype:%" PRIx32 ";", cpu_type);
1213
1214     const uint32_t cpu_subtype = proc_arch.GetMachOCPUSubType();
1215     if (cpu_subtype != 0)
1216       response.Printf("cpusubtype:%" PRIx32 ";", cpu_subtype);
1217
1218     const std::string vendor = proc_triple.getVendorName();
1219     if (!vendor.empty())
1220       response.Printf("vendor:%s;", vendor.c_str());
1221 #else
1222     // We'll send the triple.
1223     response.PutCString("triple:");
1224     response.PutCStringAsRawHex8(proc_triple.getTriple().c_str());
1225     response.PutChar(';');
1226 #endif
1227     std::string ostype = proc_triple.getOSName();
1228     // Adjust so ostype reports ios for Apple/ARM and Apple/ARM64.
1229     if (proc_triple.getVendor() == llvm::Triple::Apple) {
1230       switch (proc_triple.getArch()) {
1231       case llvm::Triple::arm:
1232       case llvm::Triple::thumb:
1233       case llvm::Triple::aarch64:
1234         ostype = "ios";
1235         break;
1236       default:
1237         // No change.
1238         break;
1239       }
1240     }
1241     response.Printf("ostype:%s;", ostype.c_str());
1242
1243     switch (proc_arch.GetByteOrder()) {
1244     case lldb::eByteOrderLittle:
1245       response.PutCString("endian:little;");
1246       break;
1247     case lldb::eByteOrderBig:
1248       response.PutCString("endian:big;");
1249       break;
1250     case lldb::eByteOrderPDP:
1251       response.PutCString("endian:pdp;");
1252       break;
1253     default:
1254       // Nothing.
1255       break;
1256     }
1257     // In case of MIPS64, pointer size is depend on ELF ABI
1258     // For N32 the pointer size is 4 and for N64 it is 8
1259     std::string abi = proc_arch.GetTargetABI();
1260     if (!abi.empty())
1261       response.Printf("elf_abi:%s;", abi.c_str());
1262     response.Printf("ptrsize:%d;", proc_arch.GetAddressByteSize());
1263   }
1264 }
1265
1266 FileSpec GDBRemoteCommunicationServerCommon::FindModuleFile(
1267     const std::string &module_path, const ArchSpec &arch) {
1268 #ifdef __ANDROID__
1269   return HostInfoAndroid::ResolveLibraryPath(module_path, arch);
1270 #else
1271   return FileSpec(module_path, true);
1272 #endif
1273 }
1274
1275 ModuleSpec
1276 GDBRemoteCommunicationServerCommon::GetModuleInfo(llvm::StringRef module_path,
1277                                                   llvm::StringRef triple) {
1278   ArchSpec arch(triple);
1279
1280   const FileSpec req_module_path_spec(module_path, true);
1281   const FileSpec module_path_spec =
1282       FindModuleFile(req_module_path_spec.GetPath(), arch);
1283   const ModuleSpec module_spec(module_path_spec, arch);
1284
1285   ModuleSpecList module_specs;
1286   if (!ObjectFile::GetModuleSpecifications(module_path_spec, 0, 0,
1287                                            module_specs))
1288     return ModuleSpec();
1289
1290   ModuleSpec matched_module_spec;
1291   if (!module_specs.FindMatchingModuleSpec(module_spec, matched_module_spec))
1292     return ModuleSpec();
1293
1294   return matched_module_spec;
1295 }