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 | } |