1 //===-- ThreadGDBRemote.h ---------------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_THREADGDBREMOTE_H 10 #define LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_THREADGDBREMOTE_H 11 12 #include <string> 13 14 #include "lldb/Target/Thread.h" 15 #include "lldb/Utility/StructuredData.h" 16 17 #include "GDBRemoteRegisterContext.h" 18 19 class StringExtractor; 20 21 namespace lldb_private { 22 class Process; 23 24 namespace process_gdb_remote { 25 26 class ProcessGDBRemote; 27 28 class ThreadGDBRemote : public Thread { 29 public: 30 ThreadGDBRemote(Process &process, lldb::tid_t tid); 31 32 ~ThreadGDBRemote() override; 33 34 void WillResume(lldb::StateType resume_state) override; 35 36 void RefreshStateAfterStop() override; 37 38 const char *GetName() override; 39 40 const char *GetQueueName() override; 41 42 lldb::QueueKind GetQueueKind() override; 43 44 lldb::queue_id_t GetQueueID() override; 45 46 lldb::QueueSP GetQueue() override; 47 48 lldb::addr_t GetQueueLibdispatchQueueAddress() override; 49 50 void SetQueueLibdispatchQueueAddress(lldb::addr_t dispatch_queue_t) override; 51 52 bool ThreadHasQueueInformation() const override; 53 54 lldb::RegisterContextSP GetRegisterContext() override; 55 56 lldb::RegisterContextSP 57 CreateRegisterContextForFrame(StackFrame *frame) override; 58 59 void Dump(Log *log, uint32_t index); 60 61 static bool ThreadIDIsValid(lldb::tid_t thread); 62 63 bool ShouldStop(bool &step_more); 64 65 const char *GetBasicInfoAsString(); 66 SetName(const char * name)67 void SetName(const char *name) override { 68 if (name && name[0]) 69 m_thread_name.assign(name); 70 else 71 m_thread_name.clear(); 72 } 73 GetThreadDispatchQAddr()74 lldb::addr_t GetThreadDispatchQAddr() { return m_thread_dispatch_qaddr; } 75 SetThreadDispatchQAddr(lldb::addr_t thread_dispatch_qaddr)76 void SetThreadDispatchQAddr(lldb::addr_t thread_dispatch_qaddr) { 77 m_thread_dispatch_qaddr = thread_dispatch_qaddr; 78 } 79 80 void ClearQueueInfo(); 81 82 void SetQueueInfo(std::string &&queue_name, lldb::QueueKind queue_kind, 83 uint64_t queue_serial, lldb::addr_t dispatch_queue_t, 84 lldb_private::LazyBool associated_with_libdispatch_queue); 85 86 lldb_private::LazyBool GetAssociatedWithLibdispatchQueue() override; 87 88 void SetAssociatedWithLibdispatchQueue( 89 lldb_private::LazyBool associated_with_libdispatch_queue) override; 90 91 StructuredData::ObjectSP FetchThreadExtendedInfo() override; 92 93 protected: 94 friend class ProcessGDBRemote; 95 96 std::string m_thread_name; 97 std::string m_dispatch_queue_name; 98 lldb::addr_t m_thread_dispatch_qaddr; 99 lldb::addr_t m_dispatch_queue_t; 100 lldb::QueueKind 101 m_queue_kind; // Queue info from stop reply/stop info for thread 102 uint64_t 103 m_queue_serial_number; // Queue info from stop reply/stop info for thread 104 lldb_private::LazyBool m_associated_with_libdispatch_queue; 105 106 GDBRemoteDynamicRegisterInfoSP m_reg_info_sp; 107 108 bool PrivateSetRegisterValue(uint32_t reg, llvm::ArrayRef<uint8_t> data); 109 110 bool PrivateSetRegisterValue(uint32_t reg, uint64_t regval); 111 CachedQueueInfoIsValid()112 bool CachedQueueInfoIsValid() const { 113 return m_queue_kind != lldb::eQueueKindUnknown; 114 } 115 void SetStopInfoFromPacket(StringExtractor &stop_packet, uint32_t stop_id); 116 117 bool CalculateStopInfo() override; 118 119 llvm::Expected<std::unique_ptr<llvm::MemoryBuffer>> 120 GetSiginfo(size_t max_size) const override; 121 }; 122 123 } // namespace process_gdb_remote 124 } // namespace lldb_private 125 126 #endif // LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_THREADGDBREMOTE_H 127