1 //===-- NativeProcessNetBSD.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 liblldb_NativeProcessNetBSD_H_ 10 #define liblldb_NativeProcessNetBSD_H_ 11 12 #include "lldb/Target/MemoryRegionInfo.h" 13 #include "lldb/Utility/ArchSpec.h" 14 #include "lldb/Utility/FileSpec.h" 15 16 #include "NativeThreadNetBSD.h" 17 #include "lldb/Host/common/NativeProcessProtocol.h" 18 19 namespace lldb_private { 20 namespace process_netbsd { 21 /// \class NativeProcessNetBSD 22 /// Manages communication with the inferior (debugee) process. 23 /// 24 /// Upon construction, this class prepares and launches an inferior process 25 /// for debugging. 26 /// 27 /// Changes in the inferior process state are broadcasted. 28 class NativeProcessNetBSD : public NativeProcessProtocol { 29 public: 30 class Factory : public NativeProcessProtocol::Factory { 31 public: 32 llvm::Expected<std::unique_ptr<NativeProcessProtocol>> 33 Launch(ProcessLaunchInfo &launch_info, NativeDelegate &native_delegate, 34 MainLoop &mainloop) const override; 35 36 llvm::Expected<std::unique_ptr<NativeProcessProtocol>> 37 Attach(lldb::pid_t pid, NativeDelegate &native_delegate, 38 MainLoop &mainloop) const override; 39 }; 40 41 // NativeProcessProtocol Interface 42 Status Resume(const ResumeActionList &resume_actions) override; 43 44 Status Halt() override; 45 46 Status Detach() override; 47 48 Status Signal(int signo) override; 49 50 Status Kill() override; 51 52 Status GetMemoryRegionInfo(lldb::addr_t load_addr, 53 MemoryRegionInfo &range_info) override; 54 55 Status ReadMemory(lldb::addr_t addr, void *buf, size_t size, 56 size_t &bytes_read) override; 57 58 Status WriteMemory(lldb::addr_t addr, const void *buf, size_t size, 59 size_t &bytes_written) override; 60 61 Status AllocateMemory(size_t size, uint32_t permissions, 62 lldb::addr_t &addr) override; 63 64 Status DeallocateMemory(lldb::addr_t addr) override; 65 66 lldb::addr_t GetSharedLibraryInfoAddress() override; 67 68 size_t UpdateThreads() override; 69 70 const ArchSpec &GetArchitecture() const override { return m_arch; } 71 72 Status SetBreakpoint(lldb::addr_t addr, uint32_t size, 73 bool hardware) override; 74 75 Status GetLoadedModuleFileSpec(const char *module_path, 76 FileSpec &file_spec) override; 77 78 Status GetFileLoadAddress(const llvm::StringRef &file_name, 79 lldb::addr_t &load_addr) override; 80 81 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> 82 GetAuxvData() const override; 83 84 // Interface used by NativeRegisterContext-derived classes. 85 static Status PtraceWrapper(int req, lldb::pid_t pid, void *addr = nullptr, 86 int data = 0, int *result = nullptr); 87 88 private: 89 MainLoop::SignalHandleUP m_sigchld_handle; 90 ArchSpec m_arch; 91 LazyBool m_supports_mem_region = eLazyBoolCalculate; 92 std::vector<std::pair<MemoryRegionInfo, FileSpec>> m_mem_region_cache; 93 94 // Private Instance Methods 95 NativeProcessNetBSD(::pid_t pid, int terminal_fd, NativeDelegate &delegate, 96 const ArchSpec &arch, MainLoop &mainloop); 97 98 bool HasThreadNoLock(lldb::tid_t thread_id); 99 100 NativeThreadNetBSD &AddThread(lldb::tid_t thread_id); 101 102 void MonitorCallback(lldb::pid_t pid, int signal); 103 void MonitorExited(lldb::pid_t pid, WaitStatus status); 104 void MonitorSIGSTOP(lldb::pid_t pid); 105 void MonitorSIGTRAP(lldb::pid_t pid); 106 void MonitorSignal(lldb::pid_t pid, int signal); 107 108 Status PopulateMemoryRegionCache(); 109 void SigchldHandler(); 110 111 Status Attach(); 112 Status ReinitializeThreads(); 113 }; 114 115 } // namespace process_netbsd 116 } // namespace lldb_private 117 118 #endif // #ifndef liblldb_NativeProcessNetBSD_H_ 119