| File: | build/source/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp |
| Warning: | line 518, column 13 Value stored to 'descriptor' during its initialization is never read |
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| 1 | //===-- GDBRemoteCommunicationServerCommon.cpp ----------------------------===// |
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "GDBRemoteCommunicationServerCommon.h" |
| 10 | |
| 11 | #include <cerrno> |
| 12 | |
| 13 | #ifdef __APPLE__ |
| 14 | #include <TargetConditionals.h> |
| 15 | #endif |
| 16 | |
| 17 | #include <chrono> |
| 18 | #include <cstring> |
| 19 | #include <optional> |
| 20 | |
| 21 | #include "lldb/Core/ModuleSpec.h" |
| 22 | #include "lldb/Host/Config.h" |
| 23 | #include "lldb/Host/File.h" |
| 24 | #include "lldb/Host/FileAction.h" |
| 25 | #include "lldb/Host/FileSystem.h" |
| 26 | #include "lldb/Host/Host.h" |
| 27 | #include "lldb/Host/HostInfo.h" |
| 28 | #include "lldb/Host/SafeMachO.h" |
| 29 | #include "lldb/Interpreter/OptionArgParser.h" |
| 30 | #include "lldb/Symbol/ObjectFile.h" |
| 31 | #include "lldb/Target/Platform.h" |
| 32 | #include "lldb/Utility/Endian.h" |
| 33 | #include "lldb/Utility/GDBRemote.h" |
| 34 | #include "lldb/Utility/LLDBLog.h" |
| 35 | #include "lldb/Utility/Log.h" |
| 36 | #include "lldb/Utility/StreamString.h" |
| 37 | #include "lldb/Utility/StructuredData.h" |
| 38 | #include "llvm/ADT/StringSwitch.h" |
| 39 | #include "llvm/Support/JSON.h" |
| 40 | #include "llvm/TargetParser/Triple.h" |
| 41 | |
| 42 | #include "ProcessGDBRemoteLog.h" |
| 43 | #include "lldb/Utility/StringExtractorGDBRemote.h" |
| 44 | |
| 45 | #ifdef __ANDROID__ |
| 46 | #include "lldb/Host/android/HostInfoAndroid.h" |
| 47 | #endif |
| 48 | |
| 49 | |
| 50 | using namespace lldb; |
| 51 | using namespace lldb_private::process_gdb_remote; |
| 52 | using namespace lldb_private; |
| 53 | |
| 54 | #ifdef __ANDROID__ |
| 55 | const static uint32_t g_default_packet_timeout_sec = 20; // seconds |
| 56 | #else |
| 57 | const static uint32_t g_default_packet_timeout_sec = 0; // not specified |
| 58 | #endif |
| 59 | |
| 60 | // GDBRemoteCommunicationServerCommon constructor |
| 61 | GDBRemoteCommunicationServerCommon::GDBRemoteCommunicationServerCommon() |
| 62 | : GDBRemoteCommunicationServer(), m_process_launch_info(), |
| 63 | m_process_launch_error(), m_proc_infos(), m_proc_infos_index(0) { |
| 64 | RegisterMemberFunctionHandler(StringExtractorGDBRemote::eServerPacketType_A, |
| 65 | &GDBRemoteCommunicationServerCommon::Handle_A); |
| 66 | RegisterMemberFunctionHandler( |
| 67 | StringExtractorGDBRemote::eServerPacketType_QEnvironment, |
| 68 | &GDBRemoteCommunicationServerCommon::Handle_QEnvironment); |
| 69 | RegisterMemberFunctionHandler( |
| 70 | StringExtractorGDBRemote::eServerPacketType_QEnvironmentHexEncoded, |
| 71 | &GDBRemoteCommunicationServerCommon::Handle_QEnvironmentHexEncoded); |
| 72 | RegisterMemberFunctionHandler( |
| 73 | StringExtractorGDBRemote::eServerPacketType_qfProcessInfo, |
| 74 | &GDBRemoteCommunicationServerCommon::Handle_qfProcessInfo); |
| 75 | RegisterMemberFunctionHandler( |
| 76 | StringExtractorGDBRemote::eServerPacketType_qGroupName, |
| 77 | &GDBRemoteCommunicationServerCommon::Handle_qGroupName); |
| 78 | RegisterMemberFunctionHandler( |
| 79 | StringExtractorGDBRemote::eServerPacketType_qHostInfo, |
| 80 | &GDBRemoteCommunicationServerCommon::Handle_qHostInfo); |
| 81 | RegisterMemberFunctionHandler( |
| 82 | StringExtractorGDBRemote::eServerPacketType_QLaunchArch, |
| 83 | &GDBRemoteCommunicationServerCommon::Handle_QLaunchArch); |
| 84 | RegisterMemberFunctionHandler( |
| 85 | StringExtractorGDBRemote::eServerPacketType_qLaunchSuccess, |
| 86 | &GDBRemoteCommunicationServerCommon::Handle_qLaunchSuccess); |
| 87 | RegisterMemberFunctionHandler( |
| 88 | StringExtractorGDBRemote::eServerPacketType_qEcho, |
| 89 | &GDBRemoteCommunicationServerCommon::Handle_qEcho); |
| 90 | RegisterMemberFunctionHandler( |
| 91 | StringExtractorGDBRemote::eServerPacketType_qModuleInfo, |
| 92 | &GDBRemoteCommunicationServerCommon::Handle_qModuleInfo); |
| 93 | RegisterMemberFunctionHandler( |
| 94 | StringExtractorGDBRemote::eServerPacketType_jModulesInfo, |
| 95 | &GDBRemoteCommunicationServerCommon::Handle_jModulesInfo); |
| 96 | RegisterMemberFunctionHandler( |
| 97 | StringExtractorGDBRemote::eServerPacketType_qPlatform_chmod, |
| 98 | &GDBRemoteCommunicationServerCommon::Handle_qPlatform_chmod); |
| 99 | RegisterMemberFunctionHandler( |
| 100 | StringExtractorGDBRemote::eServerPacketType_qPlatform_mkdir, |
| 101 | &GDBRemoteCommunicationServerCommon::Handle_qPlatform_mkdir); |
| 102 | RegisterMemberFunctionHandler( |
| 103 | StringExtractorGDBRemote::eServerPacketType_qPlatform_shell, |
| 104 | &GDBRemoteCommunicationServerCommon::Handle_qPlatform_shell); |
| 105 | RegisterMemberFunctionHandler( |
| 106 | StringExtractorGDBRemote::eServerPacketType_qProcessInfoPID, |
| 107 | &GDBRemoteCommunicationServerCommon::Handle_qProcessInfoPID); |
| 108 | RegisterMemberFunctionHandler( |
| 109 | StringExtractorGDBRemote::eServerPacketType_QSetDetachOnError, |
| 110 | &GDBRemoteCommunicationServerCommon::Handle_QSetDetachOnError); |
| 111 | RegisterMemberFunctionHandler( |
| 112 | StringExtractorGDBRemote::eServerPacketType_QSetSTDERR, |
| 113 | &GDBRemoteCommunicationServerCommon::Handle_QSetSTDERR); |
| 114 | RegisterMemberFunctionHandler( |
| 115 | StringExtractorGDBRemote::eServerPacketType_QSetSTDIN, |
| 116 | &GDBRemoteCommunicationServerCommon::Handle_QSetSTDIN); |
| 117 | RegisterMemberFunctionHandler( |
| 118 | StringExtractorGDBRemote::eServerPacketType_QSetSTDOUT, |
| 119 | &GDBRemoteCommunicationServerCommon::Handle_QSetSTDOUT); |
| 120 | RegisterMemberFunctionHandler( |
| 121 | StringExtractorGDBRemote::eServerPacketType_qSpeedTest, |
| 122 | &GDBRemoteCommunicationServerCommon::Handle_qSpeedTest); |
| 123 | RegisterMemberFunctionHandler( |
| 124 | StringExtractorGDBRemote::eServerPacketType_qsProcessInfo, |
| 125 | &GDBRemoteCommunicationServerCommon::Handle_qsProcessInfo); |
| 126 | RegisterMemberFunctionHandler( |
| 127 | StringExtractorGDBRemote::eServerPacketType_QStartNoAckMode, |
| 128 | &GDBRemoteCommunicationServerCommon::Handle_QStartNoAckMode); |
| 129 | RegisterMemberFunctionHandler( |
| 130 | StringExtractorGDBRemote::eServerPacketType_qSupported, |
| 131 | &GDBRemoteCommunicationServerCommon::Handle_qSupported); |
| 132 | RegisterMemberFunctionHandler( |
| 133 | StringExtractorGDBRemote::eServerPacketType_qUserName, |
| 134 | &GDBRemoteCommunicationServerCommon::Handle_qUserName); |
| 135 | RegisterMemberFunctionHandler( |
| 136 | StringExtractorGDBRemote::eServerPacketType_vFile_close, |
| 137 | &GDBRemoteCommunicationServerCommon::Handle_vFile_Close); |
| 138 | RegisterMemberFunctionHandler( |
| 139 | StringExtractorGDBRemote::eServerPacketType_vFile_exists, |
| 140 | &GDBRemoteCommunicationServerCommon::Handle_vFile_Exists); |
| 141 | RegisterMemberFunctionHandler( |
| 142 | StringExtractorGDBRemote::eServerPacketType_vFile_md5, |
| 143 | &GDBRemoteCommunicationServerCommon::Handle_vFile_MD5); |
| 144 | RegisterMemberFunctionHandler( |
| 145 | StringExtractorGDBRemote::eServerPacketType_vFile_mode, |
| 146 | &GDBRemoteCommunicationServerCommon::Handle_vFile_Mode); |
| 147 | RegisterMemberFunctionHandler( |
| 148 | StringExtractorGDBRemote::eServerPacketType_vFile_open, |
| 149 | &GDBRemoteCommunicationServerCommon::Handle_vFile_Open); |
| 150 | RegisterMemberFunctionHandler( |
| 151 | StringExtractorGDBRemote::eServerPacketType_vFile_pread, |
| 152 | &GDBRemoteCommunicationServerCommon::Handle_vFile_pRead); |
| 153 | RegisterMemberFunctionHandler( |
| 154 | StringExtractorGDBRemote::eServerPacketType_vFile_pwrite, |
| 155 | &GDBRemoteCommunicationServerCommon::Handle_vFile_pWrite); |
| 156 | RegisterMemberFunctionHandler( |
| 157 | StringExtractorGDBRemote::eServerPacketType_vFile_size, |
| 158 | &GDBRemoteCommunicationServerCommon::Handle_vFile_Size); |
| 159 | RegisterMemberFunctionHandler( |
| 160 | StringExtractorGDBRemote::eServerPacketType_vFile_fstat, |
| 161 | &GDBRemoteCommunicationServerCommon::Handle_vFile_FStat); |
| 162 | RegisterMemberFunctionHandler( |
| 163 | StringExtractorGDBRemote::eServerPacketType_vFile_stat, |
| 164 | &GDBRemoteCommunicationServerCommon::Handle_vFile_Stat); |
| 165 | RegisterMemberFunctionHandler( |
| 166 | StringExtractorGDBRemote::eServerPacketType_vFile_symlink, |
| 167 | &GDBRemoteCommunicationServerCommon::Handle_vFile_symlink); |
| 168 | RegisterMemberFunctionHandler( |
| 169 | StringExtractorGDBRemote::eServerPacketType_vFile_unlink, |
| 170 | &GDBRemoteCommunicationServerCommon::Handle_vFile_unlink); |
| 171 | } |
| 172 | |
| 173 | // Destructor |
| 174 | GDBRemoteCommunicationServerCommon::~GDBRemoteCommunicationServerCommon() = |
| 175 | default; |
| 176 | |
| 177 | GDBRemoteCommunication::PacketResult |
| 178 | GDBRemoteCommunicationServerCommon::Handle_qHostInfo( |
| 179 | StringExtractorGDBRemote &packet) { |
| 180 | StreamString response; |
| 181 | |
| 182 | // $cputype:16777223;cpusubtype:3;ostype:Darwin;vendor:apple;endian:little;ptrsize:8;#00 |
| 183 | |
| 184 | ArchSpec host_arch(HostInfo::GetArchitecture()); |
| 185 | const llvm::Triple &host_triple = host_arch.GetTriple(); |
| 186 | response.PutCString("triple:"); |
| 187 | response.PutStringAsRawHex8(host_triple.getTriple()); |
| 188 | response.Printf(";ptrsize:%u;", host_arch.GetAddressByteSize()); |
| 189 | |
| 190 | llvm::StringRef distribution_id = HostInfo::GetDistributionId(); |
| 191 | if (!distribution_id.empty()) { |
| 192 | response.PutCString("distribution_id:"); |
| 193 | response.PutStringAsRawHex8(distribution_id); |
| 194 | response.PutCString(";"); |
| 195 | } |
| 196 | |
| 197 | #if defined(__APPLE__) |
| 198 | // For parity with debugserver, we'll include the vendor key. |
| 199 | response.PutCString("vendor:apple;"); |
| 200 | |
| 201 | // Send out MachO info. |
| 202 | uint32_t cpu = host_arch.GetMachOCPUType(); |
| 203 | uint32_t sub = host_arch.GetMachOCPUSubType(); |
| 204 | if (cpu != LLDB_INVALID_CPUTYPE(0xFFFFFFFEu)) |
| 205 | response.Printf("cputype:%u;", cpu); |
| 206 | if (sub != LLDB_INVALID_CPUTYPE(0xFFFFFFFEu)) |
| 207 | response.Printf("cpusubtype:%u;", sub); |
| 208 | |
| 209 | if (cpu == llvm::MachO::CPU_TYPE_ARM || cpu == llvm::MachO::CPU_TYPE_ARM64) { |
| 210 | // Indicate the OS type. |
| 211 | #if defined(TARGET_OS_TV) && TARGET_OS_TV == 1 |
| 212 | response.PutCString("ostype:tvos;"); |
| 213 | #elif defined(TARGET_OS_WATCH) && TARGET_OS_WATCH == 1 |
| 214 | response.PutCString("ostype:watchos;"); |
| 215 | #elif defined(TARGET_OS_BRIDGE) && TARGET_OS_BRIDGE == 1 |
| 216 | response.PutCString("ostype:bridgeos;"); |
| 217 | #else |
| 218 | response.PutCString("ostype:ios;"); |
| 219 | #endif |
| 220 | |
| 221 | // On arm, we use "synchronous" watchpoints which means the exception is |
| 222 | // delivered before the instruction executes. |
| 223 | response.PutCString("watchpoint_exceptions_received:before;"); |
| 224 | } else { |
| 225 | response.PutCString("ostype:macosx;"); |
| 226 | response.Printf("watchpoint_exceptions_received:after;"); |
| 227 | } |
| 228 | |
| 229 | #else |
| 230 | if (host_arch.GetMachine() == llvm::Triple::aarch64 || |
| 231 | host_arch.GetMachine() == llvm::Triple::aarch64_32 || |
| 232 | host_arch.GetMachine() == llvm::Triple::aarch64_be || |
| 233 | host_arch.GetMachine() == llvm::Triple::arm || |
| 234 | host_arch.GetMachine() == llvm::Triple::armeb || host_arch.IsMIPS()) |
| 235 | response.Printf("watchpoint_exceptions_received:before;"); |
| 236 | else |
| 237 | response.Printf("watchpoint_exceptions_received:after;"); |
| 238 | #endif |
| 239 | |
| 240 | switch (endian::InlHostByteOrder()) { |
| 241 | case eByteOrderBig: |
| 242 | response.PutCString("endian:big;"); |
| 243 | break; |
| 244 | case eByteOrderLittle: |
| 245 | response.PutCString("endian:little;"); |
| 246 | break; |
| 247 | case eByteOrderPDP: |
| 248 | response.PutCString("endian:pdp;"); |
| 249 | break; |
| 250 | default: |
| 251 | response.PutCString("endian:unknown;"); |
| 252 | break; |
| 253 | } |
| 254 | |
| 255 | llvm::VersionTuple version = HostInfo::GetOSVersion(); |
| 256 | if (!version.empty()) { |
| 257 | response.Format("os_version:{0}", version.getAsString()); |
| 258 | response.PutChar(';'); |
| 259 | } |
| 260 | |
| 261 | #if defined(__APPLE__) |
| 262 | llvm::VersionTuple maccatalyst_version = HostInfo::GetMacCatalystVersion(); |
| 263 | if (!maccatalyst_version.empty()) { |
| 264 | response.Format("maccatalyst_version:{0}", |
| 265 | maccatalyst_version.getAsString()); |
| 266 | response.PutChar(';'); |
| 267 | } |
| 268 | #endif |
| 269 | |
| 270 | if (std::optional<std::string> s = HostInfo::GetOSBuildString()) { |
| 271 | response.PutCString("os_build:"); |
| 272 | response.PutStringAsRawHex8(*s); |
| 273 | response.PutChar(';'); |
| 274 | } |
| 275 | if (std::optional<std::string> s = HostInfo::GetOSKernelDescription()) { |
| 276 | response.PutCString("os_kernel:"); |
| 277 | response.PutStringAsRawHex8(*s); |
| 278 | response.PutChar(';'); |
| 279 | } |
| 280 | |
| 281 | std::string s; |
| 282 | #if defined(__APPLE__) |
| 283 | |
| 284 | #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) |
| 285 | // For iOS devices, we are connected through a USB Mux so we never pretend to |
| 286 | // actually have a hostname as far as the remote lldb that is connecting to |
| 287 | // this lldb-platform is concerned |
| 288 | response.PutCString("hostname:"); |
| 289 | response.PutStringAsRawHex8("127.0.0.1"); |
| 290 | response.PutChar(';'); |
| 291 | #else // #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) |
| 292 | if (HostInfo::GetHostname(s)) { |
| 293 | response.PutCString("hostname:"); |
| 294 | response.PutStringAsRawHex8(s); |
| 295 | response.PutChar(';'); |
| 296 | } |
| 297 | #endif // #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) |
| 298 | |
| 299 | #else // #if defined(__APPLE__) |
| 300 | if (HostInfo::GetHostname(s)) { |
| 301 | response.PutCString("hostname:"); |
| 302 | response.PutStringAsRawHex8(s); |
| 303 | response.PutChar(';'); |
| 304 | } |
| 305 | #endif // #if defined(__APPLE__) |
| 306 | // coverity[unsigned_compare] |
| 307 | if (g_default_packet_timeout_sec > 0) |
| 308 | response.Printf("default_packet_timeout:%u;", g_default_packet_timeout_sec); |
| 309 | |
| 310 | return SendPacketNoLock(response.GetString()); |
| 311 | } |
| 312 | |
| 313 | GDBRemoteCommunication::PacketResult |
| 314 | GDBRemoteCommunicationServerCommon::Handle_qProcessInfoPID( |
| 315 | StringExtractorGDBRemote &packet) { |
| 316 | // Packet format: "qProcessInfoPID:%i" where %i is the pid |
| 317 | packet.SetFilePos(::strlen("qProcessInfoPID:")); |
| 318 | lldb::pid_t pid = packet.GetU32(LLDB_INVALID_PROCESS_ID0); |
| 319 | if (pid != LLDB_INVALID_PROCESS_ID0) { |
| 320 | ProcessInstanceInfo proc_info; |
| 321 | if (Host::GetProcessInfo(pid, proc_info)) { |
| 322 | StreamString response; |
| 323 | CreateProcessInfoResponse(proc_info, response); |
| 324 | return SendPacketNoLock(response.GetString()); |
| 325 | } |
| 326 | } |
| 327 | return SendErrorResponse(1); |
| 328 | } |
| 329 | |
| 330 | GDBRemoteCommunication::PacketResult |
| 331 | GDBRemoteCommunicationServerCommon::Handle_qfProcessInfo( |
| 332 | StringExtractorGDBRemote &packet) { |
| 333 | m_proc_infos_index = 0; |
| 334 | m_proc_infos.clear(); |
| 335 | |
| 336 | ProcessInstanceInfoMatch match_info; |
| 337 | packet.SetFilePos(::strlen("qfProcessInfo")); |
| 338 | if (packet.GetChar() == ':') { |
| 339 | llvm::StringRef key; |
| 340 | llvm::StringRef value; |
| 341 | while (packet.GetNameColonValue(key, value)) { |
| 342 | bool success = true; |
| 343 | if (key.equals("name")) { |
| 344 | StringExtractor extractor(value); |
| 345 | std::string file; |
| 346 | extractor.GetHexByteString(file); |
| 347 | match_info.GetProcessInfo().GetExecutableFile().SetFile( |
| 348 | file, FileSpec::Style::native); |
| 349 | } else if (key.equals("name_match")) { |
| 350 | NameMatch name_match = llvm::StringSwitch<NameMatch>(value) |
| 351 | .Case("equals", NameMatch::Equals) |
| 352 | .Case("starts_with", NameMatch::StartsWith) |
| 353 | .Case("ends_with", NameMatch::EndsWith) |
| 354 | .Case("contains", NameMatch::Contains) |
| 355 | .Case("regex", NameMatch::RegularExpression) |
| 356 | .Default(NameMatch::Ignore); |
| 357 | match_info.SetNameMatchType(name_match); |
| 358 | if (name_match == NameMatch::Ignore) |
| 359 | return SendErrorResponse(2); |
| 360 | } else if (key.equals("pid")) { |
| 361 | lldb::pid_t pid = LLDB_INVALID_PROCESS_ID0; |
| 362 | if (value.getAsInteger(0, pid)) |
| 363 | return SendErrorResponse(2); |
| 364 | match_info.GetProcessInfo().SetProcessID(pid); |
| 365 | } else if (key.equals("parent_pid")) { |
| 366 | lldb::pid_t pid = LLDB_INVALID_PROCESS_ID0; |
| 367 | if (value.getAsInteger(0, pid)) |
| 368 | return SendErrorResponse(2); |
| 369 | match_info.GetProcessInfo().SetParentProcessID(pid); |
| 370 | } else if (key.equals("uid")) { |
| 371 | uint32_t uid = UINT32_MAX(4294967295U); |
| 372 | if (value.getAsInteger(0, uid)) |
| 373 | return SendErrorResponse(2); |
| 374 | match_info.GetProcessInfo().SetUserID(uid); |
| 375 | } else if (key.equals("gid")) { |
| 376 | uint32_t gid = UINT32_MAX(4294967295U); |
| 377 | if (value.getAsInteger(0, gid)) |
| 378 | return SendErrorResponse(2); |
| 379 | match_info.GetProcessInfo().SetGroupID(gid); |
| 380 | } else if (key.equals("euid")) { |
| 381 | uint32_t uid = UINT32_MAX(4294967295U); |
| 382 | if (value.getAsInteger(0, uid)) |
| 383 | return SendErrorResponse(2); |
| 384 | match_info.GetProcessInfo().SetEffectiveUserID(uid); |
| 385 | } else if (key.equals("egid")) { |
| 386 | uint32_t gid = UINT32_MAX(4294967295U); |
| 387 | if (value.getAsInteger(0, gid)) |
| 388 | return SendErrorResponse(2); |
| 389 | match_info.GetProcessInfo().SetEffectiveGroupID(gid); |
| 390 | } else if (key.equals("all_users")) { |
| 391 | match_info.SetMatchAllUsers( |
| 392 | OptionArgParser::ToBoolean(value, false, &success)); |
| 393 | } else if (key.equals("triple")) { |
| 394 | match_info.GetProcessInfo().GetArchitecture() = |
| 395 | HostInfo::GetAugmentedArchSpec(value); |
| 396 | } else { |
| 397 | success = false; |
| 398 | } |
| 399 | |
| 400 | if (!success) |
| 401 | return SendErrorResponse(2); |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | if (Host::FindProcesses(match_info, m_proc_infos)) { |
| 406 | // We found something, return the first item by calling the get subsequent |
| 407 | // process info packet handler... |
| 408 | return Handle_qsProcessInfo(packet); |
| 409 | } |
| 410 | return SendErrorResponse(3); |
| 411 | } |
| 412 | |
| 413 | GDBRemoteCommunication::PacketResult |
| 414 | GDBRemoteCommunicationServerCommon::Handle_qsProcessInfo( |
| 415 | StringExtractorGDBRemote &packet) { |
| 416 | if (m_proc_infos_index < m_proc_infos.size()) { |
| 417 | StreamString response; |
| 418 | CreateProcessInfoResponse(m_proc_infos[m_proc_infos_index], response); |
| 419 | ++m_proc_infos_index; |
| 420 | return SendPacketNoLock(response.GetString()); |
| 421 | } |
| 422 | return SendErrorResponse(4); |
| 423 | } |
| 424 | |
| 425 | GDBRemoteCommunication::PacketResult |
| 426 | GDBRemoteCommunicationServerCommon::Handle_qUserName( |
| 427 | StringExtractorGDBRemote &packet) { |
| 428 | #if LLDB_ENABLE_POSIX1 |
| 429 | Log *log = GetLog(LLDBLog::Process); |
| 430 | LLDB_LOGF(log, "GDBRemoteCommunicationServerCommon::%s begin", __FUNCTION__)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("GDBRemoteCommunicationServerCommon::%s begin" , __FUNCTION__); } while (0); |
| 431 | |
| 432 | // Packet format: "qUserName:%i" where %i is the uid |
| 433 | packet.SetFilePos(::strlen("qUserName:")); |
| 434 | uint32_t uid = packet.GetU32(UINT32_MAX(4294967295U)); |
| 435 | if (uid != UINT32_MAX(4294967295U)) { |
| 436 | if (std::optional<llvm::StringRef> name = |
| 437 | HostInfo::GetUserIDResolver().GetUserName(uid)) { |
| 438 | StreamString response; |
| 439 | response.PutStringAsRawHex8(*name); |
| 440 | return SendPacketNoLock(response.GetString()); |
| 441 | } |
| 442 | } |
| 443 | LLDB_LOGF(log, "GDBRemoteCommunicationServerCommon::%s end", __FUNCTION__)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("GDBRemoteCommunicationServerCommon::%s end" , __FUNCTION__); } while (0); |
| 444 | #endif |
| 445 | return SendErrorResponse(5); |
| 446 | } |
| 447 | |
| 448 | GDBRemoteCommunication::PacketResult |
| 449 | GDBRemoteCommunicationServerCommon::Handle_qGroupName( |
| 450 | StringExtractorGDBRemote &packet) { |
| 451 | #if LLDB_ENABLE_POSIX1 |
| 452 | // Packet format: "qGroupName:%i" where %i is the gid |
| 453 | packet.SetFilePos(::strlen("qGroupName:")); |
| 454 | uint32_t gid = packet.GetU32(UINT32_MAX(4294967295U)); |
| 455 | if (gid != UINT32_MAX(4294967295U)) { |
| 456 | if (std::optional<llvm::StringRef> name = |
| 457 | HostInfo::GetUserIDResolver().GetGroupName(gid)) { |
| 458 | StreamString response; |
| 459 | response.PutStringAsRawHex8(*name); |
| 460 | return SendPacketNoLock(response.GetString()); |
| 461 | } |
| 462 | } |
| 463 | #endif |
| 464 | return SendErrorResponse(6); |
| 465 | } |
| 466 | |
| 467 | GDBRemoteCommunication::PacketResult |
| 468 | GDBRemoteCommunicationServerCommon::Handle_qSpeedTest( |
| 469 | StringExtractorGDBRemote &packet) { |
| 470 | packet.SetFilePos(::strlen("qSpeedTest:")); |
| 471 | |
| 472 | llvm::StringRef key; |
| 473 | llvm::StringRef value; |
| 474 | bool success = packet.GetNameColonValue(key, value); |
| 475 | if (success && key.equals("response_size")) { |
| 476 | uint32_t response_size = 0; |
| 477 | if (!value.getAsInteger(0, response_size)) { |
| 478 | if (response_size == 0) |
| 479 | return SendOKResponse(); |
| 480 | StreamString response; |
| 481 | uint32_t bytes_left = response_size; |
| 482 | response.PutCString("data:"); |
| 483 | while (bytes_left > 0) { |
| 484 | if (bytes_left >= 26) { |
| 485 | response.PutCString("ABCDEFGHIJKLMNOPQRSTUVWXYZ"); |
| 486 | bytes_left -= 26; |
| 487 | } else { |
| 488 | response.Printf("%*.*s;", bytes_left, bytes_left, |
| 489 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ"); |
| 490 | bytes_left = 0; |
| 491 | } |
| 492 | } |
| 493 | return SendPacketNoLock(response.GetString()); |
| 494 | } |
| 495 | } |
| 496 | return SendErrorResponse(7); |
| 497 | } |
| 498 | |
| 499 | GDBRemoteCommunication::PacketResult |
| 500 | GDBRemoteCommunicationServerCommon::Handle_vFile_Open( |
| 501 | StringExtractorGDBRemote &packet) { |
| 502 | packet.SetFilePos(::strlen("vFile:open:")); |
| 503 | std::string path; |
| 504 | packet.GetHexByteStringTerminatedBy(path, ','); |
| 505 | if (!path.empty()) { |
| 506 | if (packet.GetChar() == ',') { |
| 507 | auto flags = File::OpenOptions(packet.GetHexMaxU32(false, 0)); |
| 508 | if (packet.GetChar() == ',') { |
| 509 | mode_t mode = packet.GetHexMaxU32(false, 0600); |
| 510 | FileSpec path_spec(path); |
| 511 | FileSystem::Instance().Resolve(path_spec); |
| 512 | // Do not close fd. |
| 513 | auto file = FileSystem::Instance().Open(path_spec, flags, mode, false); |
| 514 | |
| 515 | StreamString response; |
| 516 | response.PutChar('F'); |
| 517 | |
| 518 | int descriptor = File::kInvalidDescriptor; |
Value stored to 'descriptor' during its initialization is never read | |
| 519 | if (file) { |
| 520 | descriptor = file.get()->GetDescriptor(); |
| 521 | response.Printf("%x", descriptor); |
| 522 | } else { |
| 523 | response.PutCString("-1"); |
| 524 | std::error_code code = errorToErrorCode(file.takeError()); |
| 525 | if (code.category() == std::system_category()) { |
| 526 | response.Printf(",%x", code.value()); |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | return SendPacketNoLock(response.GetString()); |
| 531 | } |
| 532 | } |
| 533 | } |
| 534 | return SendErrorResponse(18); |
| 535 | } |
| 536 | |
| 537 | static GDBErrno system_errno_to_gdb(int err) { |
| 538 | switch (err) { |
| 539 | #define HANDLE_ERRNO(name, value) \ |
| 540 | case name: \ |
| 541 | return GDB_##name; |
| 542 | #include "Plugins/Process/gdb-remote/GDBRemoteErrno.def" |
| 543 | default: |
| 544 | return GDB_EUNKNOWN; |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | GDBRemoteCommunication::PacketResult |
| 549 | GDBRemoteCommunicationServerCommon::Handle_vFile_Close( |
| 550 | StringExtractorGDBRemote &packet) { |
| 551 | packet.SetFilePos(::strlen("vFile:close:")); |
| 552 | int fd = packet.GetS32(-1, 16); |
| 553 | int err = -1; |
| 554 | int save_errno = 0; |
| 555 | if (fd >= 0) { |
| 556 | NativeFile file(fd, File::OpenOptions(0), true); |
| 557 | Status error = file.Close(); |
| 558 | err = 0; |
| 559 | save_errno = error.GetError(); |
| 560 | } else { |
| 561 | save_errno = EINVAL22; |
| 562 | } |
| 563 | StreamString response; |
| 564 | response.PutChar('F'); |
| 565 | response.Printf("%x", err); |
| 566 | if (save_errno) |
| 567 | response.Printf(",%x", system_errno_to_gdb(save_errno)); |
| 568 | return SendPacketNoLock(response.GetString()); |
| 569 | } |
| 570 | |
| 571 | GDBRemoteCommunication::PacketResult |
| 572 | GDBRemoteCommunicationServerCommon::Handle_vFile_pRead( |
| 573 | StringExtractorGDBRemote &packet) { |
| 574 | StreamGDBRemote response; |
| 575 | packet.SetFilePos(::strlen("vFile:pread:")); |
| 576 | int fd = packet.GetS32(-1, 16); |
| 577 | if (packet.GetChar() == ',') { |
| 578 | size_t count = packet.GetHexMaxU64(false, SIZE_MAX(18446744073709551615UL)); |
| 579 | if (packet.GetChar() == ',') { |
| 580 | off_t offset = packet.GetHexMaxU32(false, UINT32_MAX(4294967295U)); |
| 581 | if (count == SIZE_MAX(18446744073709551615UL)) { |
| 582 | response.Printf("F-1:%x", EINVAL22); |
| 583 | return SendPacketNoLock(response.GetString()); |
| 584 | } |
| 585 | |
| 586 | std::string buffer(count, 0); |
| 587 | NativeFile file(fd, File::eOpenOptionReadOnly, false); |
| 588 | Status error = file.Read(static_cast<void *>(&buffer[0]), count, offset); |
| 589 | const int save_errno = error.GetError(); |
| 590 | response.PutChar('F'); |
| 591 | if (error.Success()) { |
| 592 | response.Printf("%zx", count); |
| 593 | response.PutChar(';'); |
| 594 | response.PutEscapedBytes(&buffer[0], count); |
| 595 | } else { |
| 596 | response.PutCString("-1"); |
| 597 | if (save_errno) |
| 598 | response.Printf(",%x", system_errno_to_gdb(save_errno)); |
| 599 | } |
| 600 | return SendPacketNoLock(response.GetString()); |
| 601 | } |
| 602 | } |
| 603 | return SendErrorResponse(21); |
| 604 | } |
| 605 | |
| 606 | GDBRemoteCommunication::PacketResult |
| 607 | GDBRemoteCommunicationServerCommon::Handle_vFile_pWrite( |
| 608 | StringExtractorGDBRemote &packet) { |
| 609 | packet.SetFilePos(::strlen("vFile:pwrite:")); |
| 610 | |
| 611 | StreamGDBRemote response; |
| 612 | response.PutChar('F'); |
| 613 | |
| 614 | int fd = packet.GetS32(-1, 16); |
| 615 | if (packet.GetChar() == ',') { |
| 616 | off_t offset = packet.GetHexMaxU32(false, UINT32_MAX(4294967295U)); |
| 617 | if (packet.GetChar() == ',') { |
| 618 | std::string buffer; |
| 619 | if (packet.GetEscapedBinaryData(buffer)) { |
| 620 | NativeFile file(fd, File::eOpenOptionWriteOnly, false); |
| 621 | size_t count = buffer.size(); |
| 622 | Status error = |
| 623 | file.Write(static_cast<const void *>(&buffer[0]), count, offset); |
| 624 | const int save_errno = error.GetError(); |
| 625 | if (error.Success()) |
| 626 | response.Printf("%zx", count); |
| 627 | else { |
| 628 | response.PutCString("-1"); |
| 629 | if (save_errno) |
| 630 | response.Printf(",%x", system_errno_to_gdb(save_errno)); |
| 631 | } |
| 632 | } else { |
| 633 | response.Printf("-1,%x", EINVAL22); |
| 634 | } |
| 635 | return SendPacketNoLock(response.GetString()); |
| 636 | } |
| 637 | } |
| 638 | return SendErrorResponse(27); |
| 639 | } |
| 640 | |
| 641 | GDBRemoteCommunication::PacketResult |
| 642 | GDBRemoteCommunicationServerCommon::Handle_vFile_Size( |
| 643 | StringExtractorGDBRemote &packet) { |
| 644 | packet.SetFilePos(::strlen("vFile:size:")); |
| 645 | std::string path; |
| 646 | packet.GetHexByteString(path); |
| 647 | if (!path.empty()) { |
| 648 | uint64_t Size; |
| 649 | if (llvm::sys::fs::file_size(path, Size)) |
| 650 | return SendErrorResponse(5); |
| 651 | StreamString response; |
| 652 | response.PutChar('F'); |
| 653 | response.PutHex64(Size); |
| 654 | if (Size == UINT64_MAX(18446744073709551615UL)) { |
| 655 | response.PutChar(','); |
| 656 | response.PutHex64(Size); // TODO: replace with Host::GetSyswideErrorCode() |
| 657 | } |
| 658 | return SendPacketNoLock(response.GetString()); |
| 659 | } |
| 660 | return SendErrorResponse(22); |
| 661 | } |
| 662 | |
| 663 | GDBRemoteCommunication::PacketResult |
| 664 | GDBRemoteCommunicationServerCommon::Handle_vFile_Mode( |
| 665 | StringExtractorGDBRemote &packet) { |
| 666 | packet.SetFilePos(::strlen("vFile:mode:")); |
| 667 | std::string path; |
| 668 | packet.GetHexByteString(path); |
| 669 | if (!path.empty()) { |
| 670 | FileSpec file_spec(path); |
| 671 | FileSystem::Instance().Resolve(file_spec); |
| 672 | std::error_code ec; |
| 673 | const uint32_t mode = FileSystem::Instance().GetPermissions(file_spec, ec); |
| 674 | StreamString response; |
| 675 | if (mode != llvm::sys::fs::perms_not_known) |
| 676 | response.Printf("F%x", mode); |
| 677 | else |
| 678 | response.Printf("F-1,%x", (int)Status(ec).GetError()); |
| 679 | return SendPacketNoLock(response.GetString()); |
| 680 | } |
| 681 | return SendErrorResponse(23); |
| 682 | } |
| 683 | |
| 684 | GDBRemoteCommunication::PacketResult |
| 685 | GDBRemoteCommunicationServerCommon::Handle_vFile_Exists( |
| 686 | StringExtractorGDBRemote &packet) { |
| 687 | packet.SetFilePos(::strlen("vFile:exists:")); |
| 688 | std::string path; |
| 689 | packet.GetHexByteString(path); |
| 690 | if (!path.empty()) { |
| 691 | bool retcode = llvm::sys::fs::exists(path); |
| 692 | StreamString response; |
| 693 | response.PutChar('F'); |
| 694 | response.PutChar(','); |
| 695 | if (retcode) |
| 696 | response.PutChar('1'); |
| 697 | else |
| 698 | response.PutChar('0'); |
| 699 | return SendPacketNoLock(response.GetString()); |
| 700 | } |
| 701 | return SendErrorResponse(24); |
| 702 | } |
| 703 | |
| 704 | GDBRemoteCommunication::PacketResult |
| 705 | GDBRemoteCommunicationServerCommon::Handle_vFile_symlink( |
| 706 | StringExtractorGDBRemote &packet) { |
| 707 | packet.SetFilePos(::strlen("vFile:symlink:")); |
| 708 | std::string dst, src; |
| 709 | packet.GetHexByteStringTerminatedBy(dst, ','); |
| 710 | packet.GetChar(); // Skip ',' char |
| 711 | packet.GetHexByteString(src); |
| 712 | |
| 713 | FileSpec src_spec(src); |
| 714 | FileSystem::Instance().Resolve(src_spec); |
| 715 | Status error = FileSystem::Instance().Symlink(src_spec, FileSpec(dst)); |
| 716 | |
| 717 | StreamString response; |
| 718 | response.Printf("F%x,%x", error.GetError(), error.GetError()); |
| 719 | return SendPacketNoLock(response.GetString()); |
| 720 | } |
| 721 | |
| 722 | GDBRemoteCommunication::PacketResult |
| 723 | GDBRemoteCommunicationServerCommon::Handle_vFile_unlink( |
| 724 | StringExtractorGDBRemote &packet) { |
| 725 | packet.SetFilePos(::strlen("vFile:unlink:")); |
| 726 | std::string path; |
| 727 | packet.GetHexByteString(path); |
| 728 | Status error(llvm::sys::fs::remove(path)); |
| 729 | StreamString response; |
| 730 | response.Printf("F%x,%x", error.GetError(), error.GetError()); |
| 731 | return SendPacketNoLock(response.GetString()); |
| 732 | } |
| 733 | |
| 734 | GDBRemoteCommunication::PacketResult |
| 735 | GDBRemoteCommunicationServerCommon::Handle_qPlatform_shell( |
| 736 | StringExtractorGDBRemote &packet) { |
| 737 | packet.SetFilePos(::strlen("qPlatform_shell:")); |
| 738 | std::string path; |
| 739 | std::string working_dir; |
| 740 | packet.GetHexByteStringTerminatedBy(path, ','); |
| 741 | if (!path.empty()) { |
| 742 | if (packet.GetChar() == ',') { |
| 743 | // FIXME: add timeout to qPlatform_shell packet |
| 744 | // uint32_t timeout = packet.GetHexMaxU32(false, 32); |
| 745 | if (packet.GetChar() == ',') |
| 746 | packet.GetHexByteString(working_dir); |
| 747 | int status, signo; |
| 748 | std::string output; |
| 749 | FileSpec working_spec(working_dir); |
| 750 | FileSystem::Instance().Resolve(working_spec); |
| 751 | Status err = |
| 752 | Host::RunShellCommand(path.c_str(), working_spec, &status, &signo, |
| 753 | &output, std::chrono::seconds(10)); |
| 754 | StreamGDBRemote response; |
| 755 | if (err.Fail()) { |
| 756 | response.PutCString("F,"); |
| 757 | response.PutHex32(UINT32_MAX(4294967295U)); |
| 758 | } else { |
| 759 | response.PutCString("F,"); |
| 760 | response.PutHex32(status); |
| 761 | response.PutChar(','); |
| 762 | response.PutHex32(signo); |
| 763 | response.PutChar(','); |
| 764 | response.PutEscapedBytes(output.c_str(), output.size()); |
| 765 | } |
| 766 | return SendPacketNoLock(response.GetString()); |
| 767 | } |
| 768 | } |
| 769 | return SendErrorResponse(24); |
| 770 | } |
| 771 | |
| 772 | template <typename T, typename U> |
| 773 | static void fill_clamp(T &dest, U src, typename T::value_type fallback) { |
| 774 | static_assert(std::is_unsigned<typename T::value_type>::value, |
| 775 | "Destination type must be unsigned."); |
| 776 | using UU = std::make_unsigned_t<U>; |
| 777 | constexpr auto T_max = std::numeric_limits<typename T::value_type>::max(); |
| 778 | dest = src >= 0 && static_cast<UU>(src) <= T_max ? src : fallback; |
| 779 | } |
| 780 | |
| 781 | GDBRemoteCommunication::PacketResult |
| 782 | GDBRemoteCommunicationServerCommon::Handle_vFile_FStat( |
| 783 | StringExtractorGDBRemote &packet) { |
| 784 | StreamGDBRemote response; |
| 785 | packet.SetFilePos(::strlen("vFile:fstat:")); |
| 786 | int fd = packet.GetS32(-1, 16); |
| 787 | |
| 788 | struct stat file_stats; |
| 789 | if (::fstat(fd, &file_stats) == -1) { |
| 790 | const int save_errno = errno(*__errno_location ()); |
| 791 | response.Printf("F-1,%x", system_errno_to_gdb(save_errno)); |
| 792 | return SendPacketNoLock(response.GetString()); |
| 793 | } |
| 794 | |
| 795 | GDBRemoteFStatData data; |
| 796 | fill_clamp(data.gdb_st_dev, file_stats.st_dev, 0); |
| 797 | fill_clamp(data.gdb_st_ino, file_stats.st_ino, 0); |
| 798 | data.gdb_st_mode = file_stats.st_mode; |
| 799 | fill_clamp(data.gdb_st_nlink, file_stats.st_nlink, UINT32_MAX(4294967295U)); |
| 800 | fill_clamp(data.gdb_st_uid, file_stats.st_uid, 0); |
| 801 | fill_clamp(data.gdb_st_gid, file_stats.st_gid, 0); |
| 802 | fill_clamp(data.gdb_st_rdev, file_stats.st_rdev, 0); |
| 803 | data.gdb_st_size = file_stats.st_size; |
| 804 | #if !defined(_WIN32) |
| 805 | data.gdb_st_blksize = file_stats.st_blksize; |
| 806 | data.gdb_st_blocks = file_stats.st_blocks; |
| 807 | #else |
| 808 | data.gdb_st_blksize = 0; |
| 809 | data.gdb_st_blocks = 0; |
| 810 | #endif |
| 811 | fill_clamp(data.gdb_st_atime, file_stats.st_atimest_atim.tv_sec, 0); |
| 812 | fill_clamp(data.gdb_st_mtime, file_stats.st_mtimest_mtim.tv_sec, 0); |
| 813 | fill_clamp(data.gdb_st_ctime, file_stats.st_ctimest_ctim.tv_sec, 0); |
| 814 | |
| 815 | response.Printf("F%zx;", sizeof(data)); |
| 816 | response.PutEscapedBytes(&data, sizeof(data)); |
| 817 | return SendPacketNoLock(response.GetString()); |
| 818 | } |
| 819 | |
| 820 | GDBRemoteCommunication::PacketResult |
| 821 | GDBRemoteCommunicationServerCommon::Handle_vFile_Stat( |
| 822 | StringExtractorGDBRemote &packet) { |
| 823 | return SendUnimplementedResponse( |
| 824 | "GDBRemoteCommunicationServerCommon::Handle_vFile_Stat() unimplemented"); |
| 825 | } |
| 826 | |
| 827 | GDBRemoteCommunication::PacketResult |
| 828 | GDBRemoteCommunicationServerCommon::Handle_vFile_MD5( |
| 829 | StringExtractorGDBRemote &packet) { |
| 830 | packet.SetFilePos(::strlen("vFile:MD5:")); |
| 831 | std::string path; |
| 832 | packet.GetHexByteString(path); |
| 833 | if (!path.empty()) { |
| 834 | StreamGDBRemote response; |
| 835 | auto Result = llvm::sys::fs::md5_contents(path); |
| 836 | if (!Result) { |
| 837 | response.PutCString("F,"); |
| 838 | response.PutCString("x"); |
| 839 | } else { |
| 840 | response.PutCString("F,"); |
| 841 | response.PutHex64(Result->low()); |
| 842 | response.PutHex64(Result->high()); |
| 843 | } |
| 844 | return SendPacketNoLock(response.GetString()); |
| 845 | } |
| 846 | return SendErrorResponse(25); |
| 847 | } |
| 848 | |
| 849 | GDBRemoteCommunication::PacketResult |
| 850 | GDBRemoteCommunicationServerCommon::Handle_qPlatform_mkdir( |
| 851 | StringExtractorGDBRemote &packet) { |
| 852 | packet.SetFilePos(::strlen("qPlatform_mkdir:")); |
| 853 | mode_t mode = packet.GetHexMaxU32(false, UINT32_MAX(4294967295U)); |
| 854 | if (packet.GetChar() == ',') { |
| 855 | std::string path; |
| 856 | packet.GetHexByteString(path); |
| 857 | Status error(llvm::sys::fs::create_directory(path, mode)); |
| 858 | |
| 859 | StreamGDBRemote response; |
| 860 | response.Printf("F%x", error.GetError()); |
| 861 | |
| 862 | return SendPacketNoLock(response.GetString()); |
| 863 | } |
| 864 | return SendErrorResponse(20); |
| 865 | } |
| 866 | |
| 867 | GDBRemoteCommunication::PacketResult |
| 868 | GDBRemoteCommunicationServerCommon::Handle_qPlatform_chmod( |
| 869 | StringExtractorGDBRemote &packet) { |
| 870 | packet.SetFilePos(::strlen("qPlatform_chmod:")); |
| 871 | |
| 872 | auto perms = |
| 873 | static_cast<llvm::sys::fs::perms>(packet.GetHexMaxU32(false, UINT32_MAX(4294967295U))); |
| 874 | if (packet.GetChar() == ',') { |
| 875 | std::string path; |
| 876 | packet.GetHexByteString(path); |
| 877 | Status error(llvm::sys::fs::setPermissions(path, perms)); |
| 878 | |
| 879 | StreamGDBRemote response; |
| 880 | response.Printf("F%x", error.GetError()); |
| 881 | |
| 882 | return SendPacketNoLock(response.GetString()); |
| 883 | } |
| 884 | return SendErrorResponse(19); |
| 885 | } |
| 886 | |
| 887 | GDBRemoteCommunication::PacketResult |
| 888 | GDBRemoteCommunicationServerCommon::Handle_qSupported( |
| 889 | StringExtractorGDBRemote &packet) { |
| 890 | // Parse client-indicated features. |
| 891 | llvm::SmallVector<llvm::StringRef, 4> client_features; |
| 892 | packet.GetStringRef().split(client_features, ';'); |
| 893 | return SendPacketNoLock(llvm::join(HandleFeatures(client_features), ";")); |
| 894 | } |
| 895 | |
| 896 | GDBRemoteCommunication::PacketResult |
| 897 | GDBRemoteCommunicationServerCommon::Handle_QSetDetachOnError( |
| 898 | StringExtractorGDBRemote &packet) { |
| 899 | packet.SetFilePos(::strlen("QSetDetachOnError:")); |
| 900 | if (packet.GetU32(0)) |
| 901 | m_process_launch_info.GetFlags().Set(eLaunchFlagDetachOnError); |
| 902 | else |
| 903 | m_process_launch_info.GetFlags().Clear(eLaunchFlagDetachOnError); |
| 904 | return SendOKResponse(); |
| 905 | } |
| 906 | |
| 907 | GDBRemoteCommunication::PacketResult |
| 908 | GDBRemoteCommunicationServerCommon::Handle_QStartNoAckMode( |
| 909 | StringExtractorGDBRemote &packet) { |
| 910 | // Send response first before changing m_send_acks to we ack this packet |
| 911 | PacketResult packet_result = SendOKResponse(); |
| 912 | m_send_acks = false; |
| 913 | return packet_result; |
| 914 | } |
| 915 | |
| 916 | GDBRemoteCommunication::PacketResult |
| 917 | GDBRemoteCommunicationServerCommon::Handle_QSetSTDIN( |
| 918 | StringExtractorGDBRemote &packet) { |
| 919 | packet.SetFilePos(::strlen("QSetSTDIN:")); |
| 920 | FileAction file_action; |
| 921 | std::string path; |
| 922 | packet.GetHexByteString(path); |
| 923 | const bool read = true; |
| 924 | const bool write = false; |
| 925 | if (file_action.Open(STDIN_FILENO0, FileSpec(path), read, write)) { |
| 926 | m_process_launch_info.AppendFileAction(file_action); |
| 927 | return SendOKResponse(); |
| 928 | } |
| 929 | return SendErrorResponse(15); |
| 930 | } |
| 931 | |
| 932 | GDBRemoteCommunication::PacketResult |
| 933 | GDBRemoteCommunicationServerCommon::Handle_QSetSTDOUT( |
| 934 | StringExtractorGDBRemote &packet) { |
| 935 | packet.SetFilePos(::strlen("QSetSTDOUT:")); |
| 936 | FileAction file_action; |
| 937 | std::string path; |
| 938 | packet.GetHexByteString(path); |
| 939 | const bool read = false; |
| 940 | const bool write = true; |
| 941 | if (file_action.Open(STDOUT_FILENO1, FileSpec(path), read, write)) { |
| 942 | m_process_launch_info.AppendFileAction(file_action); |
| 943 | return SendOKResponse(); |
| 944 | } |
| 945 | return SendErrorResponse(16); |
| 946 | } |
| 947 | |
| 948 | GDBRemoteCommunication::PacketResult |
| 949 | GDBRemoteCommunicationServerCommon::Handle_QSetSTDERR( |
| 950 | StringExtractorGDBRemote &packet) { |
| 951 | packet.SetFilePos(::strlen("QSetSTDERR:")); |
| 952 | FileAction file_action; |
| 953 | std::string path; |
| 954 | packet.GetHexByteString(path); |
| 955 | const bool read = false; |
| 956 | const bool write = true; |
| 957 | if (file_action.Open(STDERR_FILENO2, FileSpec(path), read, write)) { |
| 958 | m_process_launch_info.AppendFileAction(file_action); |
| 959 | return SendOKResponse(); |
| 960 | } |
| 961 | return SendErrorResponse(17); |
| 962 | } |
| 963 | |
| 964 | GDBRemoteCommunication::PacketResult |
| 965 | GDBRemoteCommunicationServerCommon::Handle_qLaunchSuccess( |
| 966 | StringExtractorGDBRemote &packet) { |
| 967 | if (m_process_launch_error.Success()) |
| 968 | return SendOKResponse(); |
| 969 | StreamString response; |
| 970 | response.PutChar('E'); |
| 971 | response.PutCString(m_process_launch_error.AsCString("<unknown error>")); |
| 972 | return SendPacketNoLock(response.GetString()); |
| 973 | } |
| 974 | |
| 975 | GDBRemoteCommunication::PacketResult |
| 976 | GDBRemoteCommunicationServerCommon::Handle_QEnvironment( |
| 977 | StringExtractorGDBRemote &packet) { |
| 978 | packet.SetFilePos(::strlen("QEnvironment:")); |
| 979 | const uint32_t bytes_left = packet.GetBytesLeft(); |
| 980 | if (bytes_left > 0) { |
| 981 | m_process_launch_info.GetEnvironment().insert(packet.Peek()); |
| 982 | return SendOKResponse(); |
| 983 | } |
| 984 | return SendErrorResponse(12); |
| 985 | } |
| 986 | |
| 987 | GDBRemoteCommunication::PacketResult |
| 988 | GDBRemoteCommunicationServerCommon::Handle_QEnvironmentHexEncoded( |
| 989 | StringExtractorGDBRemote &packet) { |
| 990 | packet.SetFilePos(::strlen("QEnvironmentHexEncoded:")); |
| 991 | const uint32_t bytes_left = packet.GetBytesLeft(); |
| 992 | if (bytes_left > 0) { |
| 993 | std::string str; |
| 994 | packet.GetHexByteString(str); |
| 995 | m_process_launch_info.GetEnvironment().insert(str); |
| 996 | return SendOKResponse(); |
| 997 | } |
| 998 | return SendErrorResponse(12); |
| 999 | } |
| 1000 | |
| 1001 | GDBRemoteCommunication::PacketResult |
| 1002 | GDBRemoteCommunicationServerCommon::Handle_QLaunchArch( |
| 1003 | StringExtractorGDBRemote &packet) { |
| 1004 | packet.SetFilePos(::strlen("QLaunchArch:")); |
| 1005 | const uint32_t bytes_left = packet.GetBytesLeft(); |
| 1006 | if (bytes_left > 0) { |
| 1007 | const char *arch_triple = packet.Peek(); |
| 1008 | m_process_launch_info.SetArchitecture( |
| 1009 | HostInfo::GetAugmentedArchSpec(arch_triple)); |
| 1010 | return SendOKResponse(); |
| 1011 | } |
| 1012 | return SendErrorResponse(13); |
| 1013 | } |
| 1014 | |
| 1015 | GDBRemoteCommunication::PacketResult |
| 1016 | GDBRemoteCommunicationServerCommon::Handle_A(StringExtractorGDBRemote &packet) { |
| 1017 | // The 'A' packet is the most over designed packet ever here with redundant |
| 1018 | // argument indexes, redundant argument lengths and needed hex encoded |
| 1019 | // argument string values. Really all that is needed is a comma separated hex |
| 1020 | // encoded argument value list, but we will stay true to the documented |
| 1021 | // version of the 'A' packet here... |
| 1022 | |
| 1023 | Log *log = GetLog(LLDBLog::Process); |
| 1024 | int actual_arg_index = 0; |
| 1025 | |
| 1026 | packet.SetFilePos(1); // Skip the 'A' |
| 1027 | bool success = true; |
| 1028 | while (success && packet.GetBytesLeft() > 0) { |
| 1029 | // Decode the decimal argument string length. This length is the number of |
| 1030 | // hex nibbles in the argument string value. |
| 1031 | const uint32_t arg_len = packet.GetU32(UINT32_MAX(4294967295U)); |
| 1032 | if (arg_len == UINT32_MAX(4294967295U)) |
| 1033 | success = false; |
| 1034 | else { |
| 1035 | // Make sure the argument hex string length is followed by a comma |
| 1036 | if (packet.GetChar() != ',') |
| 1037 | success = false; |
| 1038 | else { |
| 1039 | // Decode the argument index. We ignore this really because who would |
| 1040 | // really send down the arguments in a random order??? |
| 1041 | const uint32_t arg_idx = packet.GetU32(UINT32_MAX(4294967295U)); |
| 1042 | if (arg_idx == UINT32_MAX(4294967295U)) |
| 1043 | success = false; |
| 1044 | else { |
| 1045 | // Make sure the argument index is followed by a comma |
| 1046 | if (packet.GetChar() != ',') |
| 1047 | success = false; |
| 1048 | else { |
| 1049 | // Decode the argument string value from hex bytes back into a UTF8 |
| 1050 | // string and make sure the length matches the one supplied in the |
| 1051 | // packet |
| 1052 | std::string arg; |
| 1053 | if (packet.GetHexByteStringFixedLength(arg, arg_len) != |
| 1054 | (arg_len / 2)) |
| 1055 | success = false; |
| 1056 | else { |
| 1057 | // If there are any bytes left |
| 1058 | if (packet.GetBytesLeft()) { |
| 1059 | if (packet.GetChar() != ',') |
| 1060 | success = false; |
| 1061 | } |
| 1062 | |
| 1063 | if (success) { |
| 1064 | if (arg_idx == 0) |
| 1065 | m_process_launch_info.GetExecutableFile().SetFile( |
| 1066 | arg, FileSpec::Style::native); |
| 1067 | m_process_launch_info.GetArguments().AppendArgument(arg); |
| 1068 | LLDB_LOGF(log, "LLGSPacketHandler::%s added arg %d: \"%s\"",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("LLGSPacketHandler::%s added arg %d: \"%s\"" , __FUNCTION__, actual_arg_index, arg.c_str()); } while (0) |
| 1069 | __FUNCTION__, actual_arg_index, arg.c_str())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("LLGSPacketHandler::%s added arg %d: \"%s\"" , __FUNCTION__, actual_arg_index, arg.c_str()); } while (0); |
| 1070 | ++actual_arg_index; |
| 1071 | } |
| 1072 | } |
| 1073 | } |
| 1074 | } |
| 1075 | } |
| 1076 | } |
| 1077 | } |
| 1078 | |
| 1079 | if (success) { |
| 1080 | m_process_launch_error = LaunchProcess(); |
| 1081 | if (m_process_launch_error.Success()) |
| 1082 | return SendOKResponse(); |
| 1083 | LLDB_LOG(log, "failed to launch exe: {0}", m_process_launch_error)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp" , __func__, "failed to launch exe: {0}", m_process_launch_error ); } while (0); |
| 1084 | } |
| 1085 | return SendErrorResponse(8); |
| 1086 | } |
| 1087 | |
| 1088 | GDBRemoteCommunication::PacketResult |
| 1089 | GDBRemoteCommunicationServerCommon::Handle_qEcho( |
| 1090 | StringExtractorGDBRemote &packet) { |
| 1091 | // Just echo back the exact same packet for qEcho... |
| 1092 | return SendPacketNoLock(packet.GetStringRef()); |
| 1093 | } |
| 1094 | |
| 1095 | GDBRemoteCommunication::PacketResult |
| 1096 | GDBRemoteCommunicationServerCommon::Handle_qModuleInfo( |
| 1097 | StringExtractorGDBRemote &packet) { |
| 1098 | packet.SetFilePos(::strlen("qModuleInfo:")); |
| 1099 | |
| 1100 | std::string module_path; |
| 1101 | packet.GetHexByteStringTerminatedBy(module_path, ';'); |
| 1102 | if (module_path.empty()) |
| 1103 | return SendErrorResponse(1); |
| 1104 | |
| 1105 | if (packet.GetChar() != ';') |
| 1106 | return SendErrorResponse(2); |
| 1107 | |
| 1108 | std::string triple; |
| 1109 | packet.GetHexByteString(triple); |
| 1110 | |
| 1111 | ModuleSpec matched_module_spec = GetModuleInfo(module_path, triple); |
| 1112 | if (!matched_module_spec.GetFileSpec()) |
| 1113 | return SendErrorResponse(3); |
| 1114 | |
| 1115 | const auto file_offset = matched_module_spec.GetObjectOffset(); |
| 1116 | const auto file_size = matched_module_spec.GetObjectSize(); |
| 1117 | const auto uuid_str = matched_module_spec.GetUUID().GetAsString(""); |
| 1118 | |
| 1119 | StreamGDBRemote response; |
| 1120 | |
| 1121 | if (uuid_str.empty()) { |
| 1122 | auto Result = llvm::sys::fs::md5_contents( |
| 1123 | matched_module_spec.GetFileSpec().GetPath()); |
| 1124 | if (!Result) |
| 1125 | return SendErrorResponse(5); |
| 1126 | response.PutCString("md5:"); |
| 1127 | response.PutStringAsRawHex8(Result->digest()); |
| 1128 | } else { |
| 1129 | response.PutCString("uuid:"); |
| 1130 | response.PutStringAsRawHex8(uuid_str); |
| 1131 | } |
| 1132 | response.PutChar(';'); |
| 1133 | |
| 1134 | const auto &module_arch = matched_module_spec.GetArchitecture(); |
| 1135 | response.PutCString("triple:"); |
| 1136 | response.PutStringAsRawHex8(module_arch.GetTriple().getTriple()); |
| 1137 | response.PutChar(';'); |
| 1138 | |
| 1139 | response.PutCString("file_path:"); |
| 1140 | response.PutStringAsRawHex8( |
| 1141 | matched_module_spec.GetFileSpec().GetPath().c_str()); |
| 1142 | response.PutChar(';'); |
| 1143 | response.PutCString("file_offset:"); |
| 1144 | response.PutHex64(file_offset); |
| 1145 | response.PutChar(';'); |
| 1146 | response.PutCString("file_size:"); |
| 1147 | response.PutHex64(file_size); |
| 1148 | response.PutChar(';'); |
| 1149 | |
| 1150 | return SendPacketNoLock(response.GetString()); |
| 1151 | } |
| 1152 | |
| 1153 | GDBRemoteCommunication::PacketResult |
| 1154 | GDBRemoteCommunicationServerCommon::Handle_jModulesInfo( |
| 1155 | StringExtractorGDBRemote &packet) { |
| 1156 | namespace json = llvm::json; |
| 1157 | |
| 1158 | packet.SetFilePos(::strlen("jModulesInfo:")); |
| 1159 | |
| 1160 | StructuredData::ObjectSP object_sp = StructuredData::ParseJSON(packet.Peek()); |
| 1161 | if (!object_sp) |
| 1162 | return SendErrorResponse(1); |
| 1163 | |
| 1164 | StructuredData::Array *packet_array = object_sp->GetAsArray(); |
| 1165 | if (!packet_array) |
| 1166 | return SendErrorResponse(2); |
| 1167 | |
| 1168 | json::Array response_array; |
| 1169 | for (size_t i = 0; i < packet_array->GetSize(); ++i) { |
| 1170 | StructuredData::Dictionary *query = |
| 1171 | packet_array->GetItemAtIndex(i)->GetAsDictionary(); |
| 1172 | if (!query) |
| 1173 | continue; |
| 1174 | llvm::StringRef file, triple; |
| 1175 | if (!query->GetValueForKeyAsString("file", file) || |
| 1176 | !query->GetValueForKeyAsString("triple", triple)) |
| 1177 | continue; |
| 1178 | |
| 1179 | ModuleSpec matched_module_spec = GetModuleInfo(file, triple); |
| 1180 | if (!matched_module_spec.GetFileSpec()) |
| 1181 | continue; |
| 1182 | |
| 1183 | const auto file_offset = matched_module_spec.GetObjectOffset(); |
| 1184 | const auto file_size = matched_module_spec.GetObjectSize(); |
| 1185 | const auto uuid_str = matched_module_spec.GetUUID().GetAsString(""); |
| 1186 | if (uuid_str.empty()) |
| 1187 | continue; |
| 1188 | const auto triple_str = |
| 1189 | matched_module_spec.GetArchitecture().GetTriple().getTriple(); |
| 1190 | const auto file_path = matched_module_spec.GetFileSpec().GetPath(); |
| 1191 | |
| 1192 | json::Object response{{"uuid", uuid_str}, |
| 1193 | {"triple", triple_str}, |
| 1194 | {"file_path", file_path}, |
| 1195 | {"file_offset", static_cast<int64_t>(file_offset)}, |
| 1196 | {"file_size", static_cast<int64_t>(file_size)}}; |
| 1197 | response_array.push_back(std::move(response)); |
| 1198 | } |
| 1199 | |
| 1200 | StreamString response; |
| 1201 | response.AsRawOstream() << std::move(response_array); |
| 1202 | StreamGDBRemote escaped_response; |
| 1203 | escaped_response.PutEscapedBytes(response.GetString().data(), |
| 1204 | response.GetSize()); |
| 1205 | return SendPacketNoLock(escaped_response.GetString()); |
| 1206 | } |
| 1207 | |
| 1208 | void GDBRemoteCommunicationServerCommon::CreateProcessInfoResponse( |
| 1209 | const ProcessInstanceInfo &proc_info, StreamString &response) { |
| 1210 | response.Printf( |
| 1211 | "pid:%" PRIu64"l" "u" ";ppid:%" PRIu64"l" "u" ";uid:%i;gid:%i;euid:%i;egid:%i;", |
| 1212 | proc_info.GetProcessID(), proc_info.GetParentProcessID(), |
| 1213 | proc_info.GetUserID(), proc_info.GetGroupID(), |
| 1214 | proc_info.GetEffectiveUserID(), proc_info.GetEffectiveGroupID()); |
| 1215 | response.PutCString("name:"); |
| 1216 | response.PutStringAsRawHex8(proc_info.GetExecutableFile().GetPath().c_str()); |
| 1217 | |
| 1218 | response.PutChar(';'); |
| 1219 | response.PutCString("args:"); |
| 1220 | response.PutStringAsRawHex8(proc_info.GetArg0()); |
| 1221 | for (auto &arg : proc_info.GetArguments()) { |
| 1222 | response.PutChar('-'); |
| 1223 | response.PutStringAsRawHex8(arg.ref()); |
| 1224 | } |
| 1225 | |
| 1226 | response.PutChar(';'); |
| 1227 | const ArchSpec &proc_arch = proc_info.GetArchitecture(); |
| 1228 | if (proc_arch.IsValid()) { |
| 1229 | const llvm::Triple &proc_triple = proc_arch.GetTriple(); |
| 1230 | response.PutCString("triple:"); |
| 1231 | response.PutStringAsRawHex8(proc_triple.getTriple()); |
| 1232 | response.PutChar(';'); |
| 1233 | } |
| 1234 | } |
| 1235 | |
| 1236 | void GDBRemoteCommunicationServerCommon:: |
| 1237 | CreateProcessInfoResponse_DebugServerStyle( |
| 1238 | const ProcessInstanceInfo &proc_info, StreamString &response) { |
| 1239 | response.Printf("pid:%" PRIx64"l" "x" ";parent-pid:%" PRIx64"l" "x" |
| 1240 | ";real-uid:%x;real-gid:%x;effective-uid:%x;effective-gid:%x;", |
| 1241 | proc_info.GetProcessID(), proc_info.GetParentProcessID(), |
| 1242 | proc_info.GetUserID(), proc_info.GetGroupID(), |
| 1243 | proc_info.GetEffectiveUserID(), |
| 1244 | proc_info.GetEffectiveGroupID()); |
| 1245 | |
| 1246 | const ArchSpec &proc_arch = proc_info.GetArchitecture(); |
| 1247 | if (proc_arch.IsValid()) { |
| 1248 | const llvm::Triple &proc_triple = proc_arch.GetTriple(); |
| 1249 | #if defined(__APPLE__) |
| 1250 | // We'll send cputype/cpusubtype. |
| 1251 | const uint32_t cpu_type = proc_arch.GetMachOCPUType(); |
| 1252 | if (cpu_type != 0) |
| 1253 | response.Printf("cputype:%" PRIx32"x" ";", cpu_type); |
| 1254 | |
| 1255 | const uint32_t cpu_subtype = proc_arch.GetMachOCPUSubType(); |
| 1256 | if (cpu_subtype != 0) |
| 1257 | response.Printf("cpusubtype:%" PRIx32"x" ";", cpu_subtype); |
| 1258 | |
| 1259 | const std::string vendor = proc_triple.getVendorName().str(); |
| 1260 | if (!vendor.empty()) |
| 1261 | response.Printf("vendor:%s;", vendor.c_str()); |
| 1262 | #else |
| 1263 | // We'll send the triple. |
| 1264 | response.PutCString("triple:"); |
| 1265 | response.PutStringAsRawHex8(proc_triple.getTriple()); |
| 1266 | response.PutChar(';'); |
| 1267 | #endif |
| 1268 | std::string ostype = std::string(proc_triple.getOSName()); |
| 1269 | // Adjust so ostype reports ios for Apple/ARM and Apple/ARM64. |
| 1270 | if (proc_triple.getVendor() == llvm::Triple::Apple) { |
| 1271 | switch (proc_triple.getArch()) { |
| 1272 | case llvm::Triple::arm: |
| 1273 | case llvm::Triple::thumb: |
| 1274 | case llvm::Triple::aarch64: |
| 1275 | case llvm::Triple::aarch64_32: |
| 1276 | ostype = "ios"; |
| 1277 | break; |
| 1278 | default: |
| 1279 | // No change. |
| 1280 | break; |
| 1281 | } |
| 1282 | } |
| 1283 | response.Printf("ostype:%s;", ostype.c_str()); |
| 1284 | |
| 1285 | switch (proc_arch.GetByteOrder()) { |
| 1286 | case lldb::eByteOrderLittle: |
| 1287 | response.PutCString("endian:little;"); |
| 1288 | break; |
| 1289 | case lldb::eByteOrderBig: |
| 1290 | response.PutCString("endian:big;"); |
| 1291 | break; |
| 1292 | case lldb::eByteOrderPDP: |
| 1293 | response.PutCString("endian:pdp;"); |
| 1294 | break; |
| 1295 | default: |
| 1296 | // Nothing. |
| 1297 | break; |
| 1298 | } |
| 1299 | // In case of MIPS64, pointer size is depend on ELF ABI For N32 the pointer |
| 1300 | // size is 4 and for N64 it is 8 |
| 1301 | std::string abi = proc_arch.GetTargetABI(); |
| 1302 | if (!abi.empty()) |
| 1303 | response.Printf("elf_abi:%s;", abi.c_str()); |
| 1304 | response.Printf("ptrsize:%d;", proc_arch.GetAddressByteSize()); |
| 1305 | } |
| 1306 | } |
| 1307 | |
| 1308 | FileSpec GDBRemoteCommunicationServerCommon::FindModuleFile( |
| 1309 | const std::string &module_path, const ArchSpec &arch) { |
| 1310 | #ifdef __ANDROID__ |
| 1311 | return HostInfoAndroid::ResolveLibraryPath(module_path, arch); |
| 1312 | #else |
| 1313 | FileSpec file_spec(module_path); |
| 1314 | FileSystem::Instance().Resolve(file_spec); |
| 1315 | return file_spec; |
| 1316 | #endif |
| 1317 | } |
| 1318 | |
| 1319 | ModuleSpec |
| 1320 | GDBRemoteCommunicationServerCommon::GetModuleInfo(llvm::StringRef module_path, |
| 1321 | llvm::StringRef triple) { |
| 1322 | ArchSpec arch(triple); |
| 1323 | |
| 1324 | FileSpec req_module_path_spec(module_path); |
| 1325 | FileSystem::Instance().Resolve(req_module_path_spec); |
| 1326 | |
| 1327 | const FileSpec module_path_spec = |
| 1328 | FindModuleFile(req_module_path_spec.GetPath(), arch); |
| 1329 | const ModuleSpec module_spec(module_path_spec, arch); |
| 1330 | |
| 1331 | ModuleSpecList module_specs; |
| 1332 | if (!ObjectFile::GetModuleSpecifications(module_path_spec, 0, 0, |
| 1333 | module_specs)) |
| 1334 | return ModuleSpec(); |
| 1335 | |
| 1336 | ModuleSpec matched_module_spec; |
| 1337 | if (!module_specs.FindMatchingModuleSpec(module_spec, matched_module_spec)) |
| 1338 | return ModuleSpec(); |
| 1339 | |
| 1340 | return matched_module_spec; |
| 1341 | } |
| 1342 | |
| 1343 | std::vector<std::string> GDBRemoteCommunicationServerCommon::HandleFeatures( |
| 1344 | const llvm::ArrayRef<llvm::StringRef> client_features) { |
| 1345 | // 128KBytes is a reasonable max packet size--debugger can always use less. |
| 1346 | constexpr uint32_t max_packet_size = 128 * 1024; |
| 1347 | |
| 1348 | // Features common to platform server and llgs. |
| 1349 | return { |
| 1350 | llvm::formatv("PacketSize={0}", max_packet_size), |
| 1351 | "QStartNoAckMode+", |
| 1352 | "qEcho+", |
| 1353 | "native-signals+", |
| 1354 | }; |
| 1355 | } |