| OLD | NEW |
|---|
| (Empty) |
| 1 #include "debugger/debug_server/debug_server.h" | |
| 2 #include <assert.h> | |
| 3 #include <algorithm> | |
| 4 #include "debugger/core/debuggee_thread.h" | |
| 5 #include "debugger/core/debuggee_process.h" | |
| 6 #include "debugger/rsp/rsp_packet.h" | |
| 7 #include "debugger/core/debug_logger.h" | |
| 8 | |
| 9 namespace { | |
| 10 const int kReadBufferSize = 1024; | |
| 11 const int kVS2008_THREAD_INFO = 0x406D1388; | |
| 12 | |
| 13 void MakeContinueDecision( | |
| 14 const debug::DebugEvent& debug_event, | |
| 15 debug::DebuggeeThread* thread, | |
| 16 bool* halt, | |
| 17 bool* pass_exception); | |
| 18 rsp::StopReply GetStopReply( | |
| 19 debug::IDebuggeeProcess* halted_process); | |
| 20 int GetSignalNumber(const debug::DebugEvent& debug_event); | |
| 21 | |
| 22 bool ExitedNormally(int ret_code) { | |
| 23 return ((ret_code >=0) && (ret_code < 256)); | |
| 24 } | |
| 25 void PrintCONTEXT(const CONTEXT& ct); | |
| 26 } // namespace | |
| 27 | |
| 28 namespace debug { | |
| 29 DebugServer::DebugServer() | |
| 30 : connection_was_established_(false), | |
| 31 focused_process_id_(0), | |
| 32 focused_thread_id_(0), | |
| 33 main_nexe_thread_id_(0) { | |
| 34 rsp_packetizer_.SetPacketConsumer(this); | |
| 35 execution_engine_ = new ExecutionEngine(&debug_api_); | |
| 36 | |
| 37 #ifdef COMN_LOG | |
| 38 logger_ = Logger::Get(); | |
| 39 #else | |
| 40 debug::TextFileLogger* log = new debug::TextFileLogger(); | |
| 41 log->Open("nacl_gdbserver_log.txt"); | |
| 42 log->EnableStdout(true); | |
| 43 logger_ = log; | |
| 44 #endif | |
| 45 } | |
| 46 | |
| 47 DebugServer::~DebugServer() { | |
| 48 delete execution_engine_; | |
| 49 } | |
| 50 | |
| 51 bool DebugServer::ListenOnPort(int port) { | |
| 52 bool res = listening_socket_.Listen(port); | |
| 53 if (res) | |
| 54 logger_->Log("TR100.1", "Started listening on port %d ...\n", port); | |
| 55 return res; | |
| 56 } | |
| 57 | |
| 58 bool DebugServer::StartProcess(const char* cmd, const char* work_dir) { | |
| 59 bool res = execution_engine_->StartProcess(cmd, work_dir); | |
| 60 if (res) | |
| 61 logger_->Log("TR100.2", "Starting process [%s]...\n", cmd); | |
| 62 return res; | |
| 63 } | |
| 64 | |
| 65 void DebugServer::DoWork(int wait_ms) { | |
| 66 if (!debugger_connection_.IsConnected()) { | |
| 67 if (connection_was_established_) { | |
| 68 connection_was_established_ = false; | |
| 69 logger_->Log("TR100.3", "Dropped connection from debugger.\n"); | |
| 70 } | |
| 71 if (listening_socket_.Accept(&debugger_connection_, 0)) { | |
| 72 connection_was_established_ = true; | |
| 73 logger_->Log("TR100.4", "Got connection from debugger.\n"); | |
| 74 } | |
| 75 } else { | |
| 76 char buff[kReadBufferSize]; | |
| 77 for (int i = 0; i < 100; i++) { | |
| 78 size_t read_bytes = debugger_connection_.Read(buff, | |
| 79 sizeof(buff) - 1, | |
| 80 0); | |
| 81 if (read_bytes > 0) { | |
| 82 buff[read_bytes] = 0; | |
| 83 logger_->Log("R>", "[%s]\n", buff); | |
| 84 if (strncmp(buff, "+$Xc000206", 10) == 0) | |
| 85 printf(""); | |
| 86 | |
| 87 rsp_packetizer_.OnData(buff, read_bytes); | |
| 88 } else { | |
| 89 break; | |
| 90 } | |
| 91 } | |
| 92 } | |
| 93 int pid = 0; | |
| 94 execution_engine_->WaitForDebugEventAndDispatchIt(wait_ms, &pid); | |
| 95 IDebuggeeProcess* halted_process = execution_engine_->GetProcess(pid); | |
| 96 if (NULL != halted_process) { | |
| 97 if (debug::DebugEvent::kThreadIsAboutToStart == | |
| 98 execution_engine_->debug_event().nacl_debug_event_code()) { | |
| 99 DebuggeeThread* thread = halted_process->GetHaltedThread(); | |
| 100 if ((NULL != thread) && thread->IsNaClAppThread()) | |
| 101 logger_->Log("TR100.5", | |
| 102 "NaClThreadStart mem_base=%p entry_point=%p thread_id=%d\n", | |
| 103 halted_process->nexe_mem_base(), | |
| 104 halted_process->nexe_entry_point(), | |
| 105 thread->id()); | |
| 106 } | |
| 107 | |
| 108 bool halt = false; | |
| 109 bool pass_exception = true; | |
| 110 MakeContinueDecision(execution_engine_->debug_event(), | |
| 111 halted_process->GetHaltedThread(), | |
| 112 &halt, | |
| 113 &pass_exception); | |
| 114 if (halt) | |
| 115 OnHaltedProcess(halted_process, execution_engine_->debug_event()); | |
| 116 else if (pass_exception) | |
| 117 halted_process->ContinueAndPassExceptionToDebuggee(); | |
| 118 else | |
| 119 halted_process->Continue(); | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 void DebugServer::Quit() { | |
| 124 execution_engine_->Stop(300); | |
| 125 listening_socket_.Close(); | |
| 126 debugger_connection_.Close(); | |
| 127 } | |
| 128 | |
| 129 void DebugServer::OnHaltedProcess(IDebuggeeProcess* halted_process, | |
| 130 const DebugEvent& debug_event) { | |
| 131 char tmp[1000]; | |
| 132 debug_event.ToString(tmp, sizeof(tmp)); | |
| 133 logger_->Log("TR100.6", | |
| 134 "Halted: pid=%d tid=%d\ndebugevent=%s\n", | |
| 135 halted_process->id(), | |
| 136 halted_process->GetHaltedThread()->id(), | |
| 137 tmp); | |
| 138 | |
| 139 assert(halted_process->GetHaltedThread()->IsNaClAppThread()); | |
| 140 | |
| 141 // TODO: cleanup | |
| 142 CONTEXT ct; | |
| 143 halted_process->GetHaltedThread()->GetContext(&ct); | |
| 144 PrintCONTEXT(ct); | |
| 145 | |
| 146 if (0 == main_nexe_thread_id_) { | |
| 147 focused_process_id_ = halted_process->id(); | |
| 148 main_nexe_thread_id_ = focused_thread_id_; | |
| 149 } | |
| 150 focused_thread_id_ = halted_process->GetHaltedThread()->id(); | |
| 151 | |
| 152 if (debugger_connection_.IsConnected()) | |
| 153 PostRspMessage(GetStopReply(halted_process)); | |
| 154 } | |
| 155 | |
| 156 void DebugServer::PostRspMessage(const rsp::Packet& msg) { | |
| 157 Blob text; | |
| 158 msg.ToBlob(&text); | |
| 159 Blob wire_msg; | |
| 160 rsp::PacketUtil::AddEnvelope(text, &wire_msg); | |
| 161 debugger_connection_.WriteAll(wire_msg); | |
| 162 logger_->Log("T>", "[%s]\n", text.ToString().c_str()); | |
| 163 } | |
| 164 | |
| 165 void DebugServer::OnUnknownCommand() { | |
| 166 PostRspMessage(rsp::EmptyPacket()); | |
| 167 } | |
| 168 | |
| 169 void DebugServer::OnPacket(const Blob& body, bool valid_checksum) { | |
| 170 if (valid_checksum) | |
| 171 debugger_connection_.WriteAll("+"); | |
| 172 | |
| 173 Blob msg = body; | |
| 174 rsp::Packet* command = rsp::Packet::CreateFromBlob(&msg); | |
| 175 if (NULL != command) { | |
| 176 command->AcceptVisitor(this); | |
| 177 delete command; | |
| 178 } else { | |
| 179 PostRspMessage(rsp::EmptyPacket()); | |
| 180 } | |
| 181 } | |
| 182 | |
| 183 void DebugServer::OnUnexpectedChar(char unexpected_char) { | |
| 184 logger_->Log("WARN21.01", "msg='DebugServer::OnUnexpectedChar' c='0x%x'", stat
ic_cast<int>(unexpected_char)); | |
| 185 } | |
| 186 | |
| 187 void DebugServer::OnBreak() { | |
| 188 if (0 != focused_process_id_) { | |
| 189 //TODO : implement | |
| 190 OnUnknownCommand(); | |
| 191 } else { | |
| 192 PostRspMessage(rsp::ErrorReply(1)); | |
| 193 } | |
| 194 } | |
| 195 | |
| 196 void DebugServer::Visit(rsp::GetStopReasonCommand* packet) { | |
| 197 IDebuggeeProcess* proc = execution_engine_->GetProcess(focused_process_id_); | |
| 198 if (NULL == proc) { | |
| 199 PostRspMessage(rsp::ErrorReply(2)); | |
| 200 return; | |
| 201 } | |
| 202 DebugEvent debug_event = proc->last_debug_event(); | |
| 203 DEBUG_EVENT wde = debug_event.windows_debug_event(); | |
| 204 if (wde.dwDebugEventCode == EXIT_THREAD_DEBUG_EVENT) { | |
| 205 if (wde.dwThreadId == main_nexe_thread_id_) { | |
| 206 int ret_code = wde.u.ExitThread.dwExitCode; | |
| 207 if (ExitedNormally(ret_code)) { | |
| 208 rsp::StopReply reply(rsp::StopReply::EXITED); | |
| 209 reply.set_exit_code(ret_code); | |
| 210 PostRspMessage(reply); | |
| 211 } else { | |
| 212 rsp::StopReply reply(rsp::StopReply::TERMINATED); | |
| 213 reply.set_signal_number(ret_code); | |
| 214 PostRspMessage(reply); | |
| 215 } | |
| 216 return; | |
| 217 } | |
| 218 } | |
| 219 if (proc->IsHalted()) | |
| 220 PostRspMessage(GetStopReply(proc)); | |
| 221 else if (DebuggeeProcess::kDead == proc->state()) | |
| 222 PostRspMessage(rsp::ErrorReply(5)); | |
| 223 else // Process is running. | |
| 224 PostRspMessage(rsp::StopReply(rsp::StopReply::STILL_RUNNING)); | |
| 225 } | |
| 226 | |
| 227 void DebugServer::Visit(rsp::ContinueCommand* packet) { | |
| 228 IDebuggeeProcess* proc = execution_engine_->GetProcess(focused_process_id_); | |
| 229 if (NULL == proc) | |
| 230 PostRspMessage(rsp::ErrorReply(4)); | |
| 231 else | |
| 232 proc->Continue(); | |
| 233 } | |
| 234 | |
| 235 void DebugServer::Visit(rsp::QuerySupportedCommand* packet) { | |
| 236 rsp::QuerySupportedReply reply; | |
| 237 reply.AddFeature("PacketSize", "7cf"); | |
| 238 reply.AddFeature("qXfer:libraries:read", "+"); | |
| 239 reply.AddFeature("qXfer:features:read", "+"); | |
| 240 PostRspMessage(reply); | |
| 241 } | |
| 242 | |
| 243 void DebugServer::Visit(rsp::QXferFeaturesReadCommand* packet) { | |
| 244 //qXfer:features:read:target.xml:0,7ca | |
| 245 if (packet->file_name() == "target.xml") { | |
| 246 rsp::QXferReply reply; | |
| 247 reply.set_body("<target><architecture>i386:x86-64</architecture></target>"); | |
| 248 reply.set_eom(true); | |
| 249 PostRspMessage(reply); | |
| 250 } else { | |
| 251 OnUnknownCommand(); | |
| 252 } | |
| 253 } | |
| 254 | |
| 255 void DebugServer::Visit(rsp::SetCurrentThreadCommand* packet) { | |
| 256 int tid = static_cast<int>(packet->thread_id()); | |
| 257 bool res = false; | |
| 258 if (-1 == tid) { // all threads | |
| 259 res = false; | |
| 260 } else if (0 == tid) { // any thread | |
| 261 res = true; | |
| 262 } else { | |
| 263 IDebuggeeProcess* proc = execution_engine_->GetProcess(focused_process_id_); | |
| 264 if (NULL != proc) { | |
| 265 DebuggeeThread* thread = proc->GetThread(tid); | |
| 266 if (NULL != thread) { | |
| 267 res = true; | |
| 268 focused_thread_id_ = tid; | |
| 269 } | |
| 270 } | |
| 271 } | |
| 272 if (res) | |
| 273 PostRspMessage(rsp::OkReply()); | |
| 274 else | |
| 275 PostRspMessage(rsp::ErrorReply(3)); | |
| 276 } | |
| 277 | |
| 278 void DebugServer::Visit(rsp::ReadMemoryCommand* packet) { | |
| 279 int sz = packet->num_of_bytes(); | |
| 280 if (0 == sz) { | |
| 281 PostRspMessage(rsp::ErrorReply(4)); | |
| 282 return; | |
| 283 } | |
| 284 // We advertize max size of RSP packet as 1999 | |
| 285 char buff[3000]; | |
| 286 if (sizeof(buff) < sz) { | |
| 287 PostRspMessage(rsp::ErrorReply(5)); | |
| 288 return; | |
| 289 } | |
| 290 IDebuggeeProcess* proc = execution_engine_->GetProcess(focused_process_id_); | |
| 291 if (NULL != proc) { | |
| 292 char* addr = reinterpret_cast<char*>(packet->addr()); | |
| 293 // massage address to support gdb | |
| 294 if (addr < proc->nexe_mem_base()) | |
| 295 addr += reinterpret_cast<size_t>(proc->nexe_mem_base()); | |
| 296 | |
| 297 if (proc->ReadMemory(addr, sz, buff)) { | |
| 298 rsp::BlobReply reply; | |
| 299 reply.set_data(buff, sz); | |
| 300 PostRspMessage(reply); | |
| 301 } else { | |
| 302 PostRspMessage(rsp::ErrorReply(6)); | |
| 303 } | |
| 304 } else { | |
| 305 PostRspMessage(rsp::ErrorReply(7)); | |
| 306 } | |
| 307 } | |
| 308 | |
| 309 void DebugServer::Visit(rsp::WriteMemoryCommand* packet) { | |
| 310 const debug::Blob& data = packet->data(); | |
| 311 IDebuggeeProcess* proc = execution_engine_->GetProcess(focused_process_id_); | |
| 312 if (NULL != proc) { | |
| 313 void* tmp = data.ToCBuffer(); | |
| 314 if (NULL == tmp) { | |
| 315 PostRspMessage(rsp::ErrorReply(8)); | |
| 316 return; | |
| 317 } | |
| 318 | |
| 319 char* addr = reinterpret_cast<char*>(packet->addr()); | |
| 320 // massage address to support gdb | |
| 321 if (addr < proc->nexe_mem_base()) | |
| 322 addr += reinterpret_cast<size_t>(proc->nexe_mem_base()); | |
| 323 | |
| 324 bool res = proc->WriteMemory(addr, data.size(), tmp); | |
| 325 free(tmp); | |
| 326 if (res) | |
| 327 PostRspMessage(rsp::OkReply()); | |
| 328 else | |
| 329 PostRspMessage(rsp::ErrorReply(9)); | |
| 330 } else { | |
| 331 logger_->Log("WARN21.02", "Can't find process pid=%d", focused_process_id_); | |
| 332 PostRspMessage(rsp::ErrorReply(10)); | |
| 333 } | |
| 334 } | |
| 335 | |
| 336 void DebugServer::Visit(rsp::ReadRegistersCommand* packet) { | |
| 337 Blob registers_blob; | |
| 338 if (ReadGdbRegisters(®isters_blob)) { | |
| 339 rsp::BlobReply reply; | |
| 340 reply.set_data(registers_blob); | |
| 341 PostRspMessage(reply); | |
| 342 } else { | |
| 343 logger_->Log("WARN21.03", "DebugServer::ReadGdbRegisters pid=%d tid=%d -> fa
lse", focused_process_id_, focused_thread_id_); | |
| 344 PostRspMessage(rsp::ErrorReply(113)); | |
| 345 } | |
| 346 } | |
| 347 | |
| 348 void DebugServer::Visit(rsp::WriteRegistersCommand* packet) { | |
| 349 IDebuggeeProcess* proc = execution_engine_->GetProcess(focused_process_id_); | |
| 350 if (NULL == proc) { | |
| 351 PostRspMessage(rsp::ErrorReply(14)); | |
| 352 return; | |
| 353 } | |
| 354 DebuggeeThread* thread = proc->GetThread(focused_thread_id_); | |
| 355 if (NULL == thread) { | |
| 356 PostRspMessage(rsp::ErrorReply(15)); | |
| 357 return; | |
| 358 } | |
| 359 CONTEXT ct; | |
| 360 if (!thread->GetContext(&ct)) { | |
| 361 PostRspMessage(rsp::ErrorReply(16)); | |
| 362 return; | |
| 363 } | |
| 364 GdbRegistersToCONTEXT(packet->data(), &ct); | |
| 365 if (!thread->SetContext(ct)) | |
| 366 PostRspMessage(rsp::ErrorReply(16)); | |
| 367 else | |
| 368 PostRspMessage(rsp::OkReply()); | |
| 369 } | |
| 370 | |
| 371 #define X86_32_REGS \ | |
| 372 REG(Eax); \ | |
| 373 REG(Ecx); \ | |
| 374 REG(Edx); \ | |
| 375 REG(Ebx); \ | |
| 376 REG(Esp); \ | |
| 377 REG(Ebp); \ | |
| 378 REG(Esi); \ | |
| 379 REG(Edi); \ | |
| 380 REG(Eip); \ | |
| 381 REG(EFlags); \ | |
| 382 REG(SegCs); \ | |
| 383 REG(SegSs); \ | |
| 384 REG(SegDs); \ | |
| 385 REG(SegEs); \ | |
| 386 REG(SegFs); \ | |
| 387 REG(SegGs) | |
| 388 | |
| 389 #define X86_64_REGS \ | |
| 390 REG(Rax); \ | |
| 391 REG(Rbx); \ | |
| 392 REG(Rcx); \ | |
| 393 REG(Rdx); \ | |
| 394 REG(Rsi); \ | |
| 395 REG(Rdi); \ | |
| 396 REG(Rbp); \ | |
| 397 REG(Rsp); \ | |
| 398 REG(R8); \ | |
| 399 REG(R9); \ | |
| 400 REG(R10); \ | |
| 401 REG(R11); \ | |
| 402 REG(R12); \ | |
| 403 REG(R13); \ | |
| 404 REG(R14); \ | |
| 405 REG(R15); \ | |
| 406 REG(Rip); \ | |
| 407 REG(EFlags); \ | |
| 408 REG(SegCs); \ | |
| 409 REG(SegSs); \ | |
| 410 REG(SegDs); \ | |
| 411 REG(SegEs); \ | |
| 412 REG(SegFs); \ | |
| 413 REG(SegGs) | |
| 414 | |
| 415 char* names_of_bad_regs = "EFlags,SegCs,SegSs,SegDs,SegEs,SegFs,SegGs,"; | |
| 416 | |
| 417 size_t WriteReg(const Blob& blob, size_t offset, void* dst, int reg_size, const
char* name) { | |
| 418 char* pp = strstr(names_of_bad_regs,name); | |
| 419 size_t name_len = strlen(name); | |
| 420 if ((NULL != pp) && (',' == *(pp + name_len))) { | |
| 421 unsigned long reg = 0; | |
| 422 reg_size = sizeof(reg); | |
| 423 blob.Peek(offset, ®, sizeof(reg)); | |
| 424 memcpy(dst, ®, 2); | |
| 425 } else { | |
| 426 blob.Peek(offset, dst, reg_size); | |
| 427 } | |
| 428 return offset + reg_size; | |
| 429 } | |
| 430 | |
| 431 void DebugServer::GdbRegistersToCONTEXT(const Blob& gdb_regs, CONTEXT* ct) { | |
| 432 size_t offset = 0; | |
| 433 #define REG(name) ct->name = 0; offset = WriteReg(gdb_regs, offset, &ct->name, s
izeof(ct->name), #name) | |
| 434 #ifdef _WIN64 | |
| 435 X86_64_REGS; | |
| 436 #else | |
| 437 X86_32_REGS; | |
| 438 #endif | |
| 439 #undef REG | |
| 440 } | |
| 441 | |
| 442 void ReadReg(Blob* blob, void* src, int reg_size, const char* name) { | |
| 443 char* pp = strstr(names_of_bad_regs,name); | |
| 444 size_t name_len = strlen(name); | |
| 445 if ((NULL != pp) && (',' == *(pp + name_len))) { | |
| 446 unsigned long reg = 0; | |
| 447 memcpy(®, src, 2); | |
| 448 blob->Append(Blob(®, sizeof(reg))); | |
| 449 } else { | |
| 450 blob->Append(Blob(src, reg_size)); | |
| 451 } | |
| 452 } | |
| 453 | |
| 454 bool DebugServer::ReadGdbRegisters(Blob* blob) { | |
| 455 IDebuggeeProcess* proc = execution_engine_->GetProcess(focused_process_id_); | |
| 456 if (NULL == proc) { | |
| 457 logger_->Log("WARN21.05", "Can't find process pid=%d", focused_process_id_); | |
| 458 return false; | |
| 459 } | |
| 460 | |
| 461 DebuggeeThread* thread = proc->GetThread(focused_thread_id_); | |
| 462 if (NULL == thread) { | |
| 463 logger_->Log("WARN21.06", "Can't find thread pid=%d tid=%d", focused_process
_id_, focused_thread_id_); | |
| 464 return false; | |
| 465 } | |
| 466 | |
| 467 CONTEXT ct; | |
| 468 if (!thread->GetContext(&ct)) { | |
| 469 logger_->Log("WARN21.07", "thread->GetContext failed. pid=%d tid=%d", focuse
d_process_id_, focused_thread_id_); | |
| 470 return false; | |
| 471 } | |
| 472 | |
| 473 #define REG(name) ReadReg(blob, &ct.name, sizeof(ct.name), #name) | |
| 474 #ifdef _WIN64 | |
| 475 X86_64_REGS; | |
| 476 #else | |
| 477 X86_32_REGS; | |
| 478 #endif | |
| 479 #undef REG | |
| 480 | |
| 481 logger_->Log("TRACE21.08", "DebugServer::ReadGdbRegisters pid=%d tid=%d -> tru
e", focused_process_id_, focused_thread_id_); | |
| 482 return true; | |
| 483 } | |
| 484 | |
| 485 void DebugServer::Visit(rsp::GetCurrentThreadCommand* packet) { | |
| 486 rsp::GetCurrentThreadReply reply; | |
| 487 reply.set_value(focused_thread_id_); | |
| 488 PostRspMessage(reply); | |
| 489 } | |
| 490 | |
| 491 void DebugServer::Visit(rsp::StepCommand* packet) { | |
| 492 IDebuggeeProcess* proc = execution_engine_->GetProcess(focused_process_id_); | |
| 493 if (NULL == proc) | |
| 494 PostRspMessage(rsp::ErrorReply(20)); | |
| 495 else if (!proc->SingleStep()) | |
| 496 PostRspMessage(rsp::ErrorReply(21)); | |
| 497 } | |
| 498 | |
| 499 void DebugServer::Visit(rsp::IsThreadAliveCommand* packet) { | |
| 500 IDebuggeeProcess* proc = execution_engine_->GetProcess(focused_process_id_); | |
| 501 if (NULL == proc) { | |
| 502 PostRspMessage(rsp::ErrorReply(22)); | |
| 503 return; | |
| 504 } | |
| 505 std::deque<int> tids; | |
| 506 proc->GetThreadIds(&tids); | |
| 507 if (std::find(tids.begin(), tids.end(), packet->value()) != tids.end()) { | |
| 508 PostRspMessage(rsp::OkReply()); | |
| 509 // found it | |
| 510 } else { | |
| 511 PostRspMessage(rsp::ErrorReply(23)); // TODO: make error codes declared con
stants | |
| 512 } | |
| 513 } | |
| 514 | |
| 515 void DebugServer::Visit(rsp::GetThreadInfoCommand* packet) { | |
| 516 IDebuggeeProcess* proc = execution_engine_->GetProcess(focused_process_id_); | |
| 517 if (NULL == proc) { | |
| 518 PostRspMessage(rsp::ErrorReply(24)); | |
| 519 return; | |
| 520 } | |
| 521 rsp::GetThreadInfoReply reply; | |
| 522 if (packet->get_more()) { | |
| 523 reply.set_eom(true); // TODO(garianov): add support for multy packet replie
s. | |
| 524 } else { | |
| 525 std::deque<int> tids; | |
| 526 proc->GetThreadIds(&tids); | |
| 527 | |
| 528 std::deque<int> nexe_tids; | |
| 529 for (size_t i = 0; i < tids.size(); i++) { | |
| 530 int tid = tids[i]; | |
| 531 DebuggeeThread* thread = proc->GetThread(tid); | |
| 532 if ((NULL != thread) && (thread->IsNaClAppThread())) | |
| 533 nexe_tids.push_back(tid); | |
| 534 } | |
| 535 reply.set_threads_ids(nexe_tids); | |
| 536 reply.set_eom(false); | |
| 537 } | |
| 538 PostRspMessage(reply); | |
| 539 } | |
| 540 | |
| 541 } // namespace debug | |
| 542 | |
| 543 namespace { | |
| 544 void MakeContinueDecision( | |
| 545 const debug::DebugEvent& debug_event, | |
| 546 debug::DebuggeeThread* thread, | |
| 547 bool* halt, | |
| 548 bool* pass_exception) { | |
| 549 if (OUTPUT_DEBUG_STRING_EVENT == debug_event.windows_debug_event().dwDebugEven
tCode) { | |
| 550 *halt = false; | |
| 551 *pass_exception = false; | |
| 552 } | |
| 553 | |
| 554 if (debug::DebugEvent::kNotNaClDebugEvent != debug_event.nacl_debug_event_code
()) { | |
| 555 *halt = true; | |
| 556 return; | |
| 557 } | |
| 558 int exception_code = debug_event.windows_debug_event().u.Exception.ExceptionRe
cord.ExceptionCode; | |
| 559 | |
| 560 if (EXCEPTION_DEBUG_EVENT == debug_event.windows_debug_event().dwDebugEventCod
e) { | |
| 561 if (kVS2008_THREAD_INFO == exception_code) { | |
| 562 *halt = false; | |
| 563 } else { | |
| 564 bool is_nexe = false; | |
| 565 if (NULL != thread) | |
| 566 is_nexe = thread->IsNaClAppThread(); | |
| 567 | |
| 568 if (is_nexe) | |
| 569 printf(""); | |
| 570 | |
| 571 *pass_exception = true; | |
| 572 | |
| 573 if (EXCEPTION_BREAKPOINT == exception_code) | |
| 574 *pass_exception = false; | |
| 575 | |
| 576 if (is_nexe) { | |
| 577 *halt = true; | |
| 578 } else { | |
| 579 *halt = false; | |
| 580 } | |
| 581 } | |
| 582 } | |
| 583 } | |
| 584 | |
| 585 rsp::StopReply GetStopReply(debug::IDebuggeeProcess* halted_process) { | |
| 586 debug::DebugEvent debug_event = halted_process->last_debug_event(); | |
| 587 DEBUG_EVENT wde = debug_event.windows_debug_event(); | |
| 588 | |
| 589 int exception_code = wde.u.Exception.ExceptionRecord.ExceptionCode; | |
| 590 switch (wde.dwDebugEventCode) { | |
| 591 case CREATE_PROCESS_DEBUG_EVENT: | |
| 592 case CREATE_THREAD_DEBUG_EVENT: | |
| 593 case EXCEPTION_DEBUG_EVENT: | |
| 594 case LOAD_DLL_DEBUG_EVENT: | |
| 595 case OUTPUT_DEBUG_STRING_EVENT: | |
| 596 case EXIT_THREAD_DEBUG_EVENT: | |
| 597 case UNLOAD_DLL_DEBUG_EVENT: { | |
| 598 rsp::StopReply reply(rsp::StopReply::SIGNALED); | |
| 599 reply.set_signal_number(GetSignalNumber(debug_event)); | |
| 600 return reply; | |
| 601 } | |
| 602 case RIP_EVENT: { | |
| 603 rsp::StopReply reply(rsp::StopReply::TERMINATED); | |
| 604 reply.set_signal_number(GetSignalNumber(debug_event)); | |
| 605 return reply; | |
| 606 } | |
| 607 case EXIT_PROCESS_DEBUG_EVENT: { | |
| 608 // NaClAppThread terminated or exited: | |
| 609 int ret_code = wde.u.ExitThread.dwExitCode; | |
| 610 if (ExitedNormally(ret_code)) { | |
| 611 rsp::StopReply reply(rsp::StopReply::EXITED); | |
| 612 reply.set_exit_code(ret_code); | |
| 613 return reply; | |
| 614 } else { | |
| 615 rsp::StopReply reply(rsp::StopReply::TERMINATED); | |
| 616 reply.set_signal_number(ret_code); | |
| 617 return reply; | |
| 618 } | |
| 619 } | |
| 620 } | |
| 621 return rsp::StopReply::SIGNALED; | |
| 622 } | |
| 623 | |
| 624 int GetSignalNumber(const debug::DebugEvent& debug_event) { | |
| 625 const int SIGSEGV = 11; | |
| 626 const int SIGSYS = 31; | |
| 627 const int SIGTRAP = 5; | |
| 628 const int SIGBUS = 7; | |
| 629 const int SIGFPE = 8; | |
| 630 const int SIGILL = 4; | |
| 631 const int SIGINT = 2; | |
| 632 const int SIGSTOP = 19; | |
| 633 | |
| 634 switch (debug_event.windows_debug_event().dwDebugEventCode) { | |
| 635 case CREATE_PROCESS_DEBUG_EVENT: | |
| 636 case CREATE_THREAD_DEBUG_EVENT: | |
| 637 case LOAD_DLL_DEBUG_EVENT: | |
| 638 case OUTPUT_DEBUG_STRING_EVENT: | |
| 639 case UNLOAD_DLL_DEBUG_EVENT: | |
| 640 case EXIT_THREAD_DEBUG_EVENT: | |
| 641 case EXIT_PROCESS_DEBUG_EVENT: | |
| 642 return SIGSTOP; | |
| 643 | |
| 644 case EXCEPTION_DEBUG_EVENT: { | |
| 645 switch (debug_event.windows_debug_event().u.Exception.ExceptionRecord.Exce
ptionCode) { | |
| 646 case EXCEPTION_ACCESS_VIOLATION: | |
| 647 case EXCEPTION_STACK_OVERFLOW: | |
| 648 return SIGSEGV; | |
| 649 case EXCEPTION_BREAKPOINT: | |
| 650 case EXCEPTION_SINGLE_STEP: | |
| 651 return SIGTRAP; | |
| 652 | |
| 653 case EXCEPTION_DATATYPE_MISALIGNMENT: return SIGBUS; | |
| 654 | |
| 655 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
| 656 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
| 657 case EXCEPTION_FLT_INEXACT_RESULT: | |
| 658 case EXCEPTION_FLT_INVALID_OPERATION: | |
| 659 case EXCEPTION_FLT_OVERFLOW: | |
| 660 case EXCEPTION_FLT_STACK_CHECK: | |
| 661 case EXCEPTION_FLT_UNDERFLOW: | |
| 662 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
| 663 case EXCEPTION_INT_OVERFLOW: | |
| 664 return SIGFPE; | |
| 665 | |
| 666 case EXCEPTION_ILLEGAL_INSTRUCTION: | |
| 667 case EXCEPTION_PRIV_INSTRUCTION: | |
| 668 return SIGILL; | |
| 669 case DBG_CONTROL_C: return SIGINT; | |
| 670 } | |
| 671 } | |
| 672 } | |
| 673 return SIGSYS; | |
| 674 } | |
| 675 | |
| 676 void PrintCONTEXT(const CONTEXT& ct) { | |
| 677 printf("CONTEXT = {\n"); | |
| 678 #define REG(name) printf("\t%s=0x%x\n", #name, ct.name) | |
| 679 #ifdef _WIN64 | |
| 680 X86_64_REGS; | |
| 681 #else | |
| 682 X86_32_REGS; | |
| 683 #endif | |
| 684 #undef REG | |
| 685 printf("}\n"); | |
| 686 } | |
| 687 | |
| 688 } // namespace | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 10928195:
First round of dead file removal (Closed)
Base URL: https://github.com/samclegg/nativeclient-sdk.git@master