1 //===-- NativeProcessNetBSD.h --------------------------------- -*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef liblldb_NativeProcessNetBSD_H_
11 #define liblldb_NativeProcessNetBSD_H_
15 // Other libraries and framework includes
17 #include "lldb/Core/ArchSpec.h"
18 #include "lldb/Target/MemoryRegionInfo.h"
19 #include "lldb/Utility/FileSpec.h"
21 #include "NativeThreadNetBSD.h"
22 #include "lldb/Host/common/NativeProcessProtocol.h"
24 namespace lldb_private {
25 namespace process_netbsd {
26 /// @class NativeProcessNetBSD
27 /// @brief Manages communication with the inferior (debugee) process.
29 /// Upon construction, this class prepares and launches an inferior process for
32 /// Changes in the inferior process state are broadcasted.
33 class NativeProcessNetBSD : public NativeProcessProtocol {
34 friend Status NativeProcessProtocol::Launch(
35 ProcessLaunchInfo &launch_info, NativeDelegate &native_delegate,
36 MainLoop &mainloop, NativeProcessProtocolSP &process_sp);
38 friend Status NativeProcessProtocol::Attach(
39 lldb::pid_t pid, NativeProcessProtocol::NativeDelegate &native_delegate,
40 MainLoop &mainloop, NativeProcessProtocolSP &process_sp);
43 // ---------------------------------------------------------------------
44 // NativeProcessProtocol Interface
45 // ---------------------------------------------------------------------
46 Status Resume(const ResumeActionList &resume_actions) override;
48 Status Halt() override;
50 Status Detach() override;
52 Status Signal(int signo) override;
54 Status Kill() override;
56 Status GetMemoryRegionInfo(lldb::addr_t load_addr,
57 MemoryRegionInfo &range_info) override;
59 Status ReadMemory(lldb::addr_t addr, void *buf, size_t size,
60 size_t &bytes_read) override;
62 Status ReadMemoryWithoutTrap(lldb::addr_t addr, void *buf, size_t size,
63 size_t &bytes_read) override;
65 Status WriteMemory(lldb::addr_t addr, const void *buf, size_t size,
66 size_t &bytes_written) override;
68 Status AllocateMemory(size_t size, uint32_t permissions,
69 lldb::addr_t &addr) override;
71 Status DeallocateMemory(lldb::addr_t addr) override;
73 lldb::addr_t GetSharedLibraryInfoAddress() override;
75 size_t UpdateThreads() override;
77 bool GetArchitecture(ArchSpec &arch) const override;
79 Status SetBreakpoint(lldb::addr_t addr, uint32_t size,
80 bool hardware) override;
82 Status GetLoadedModuleFileSpec(const char *module_path,
83 FileSpec &file_spec) override;
85 Status GetFileLoadAddress(const llvm::StringRef &file_name,
86 lldb::addr_t &load_addr) override;
88 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>>
89 GetAuxvData() const override;
91 // ---------------------------------------------------------------------
92 // Interface used by NativeRegisterContext-derived classes.
93 // ---------------------------------------------------------------------
94 static Status PtraceWrapper(int req, lldb::pid_t pid, void *addr = nullptr,
95 int data = 0, int *result = nullptr);
98 // ---------------------------------------------------------------------
99 // NativeProcessProtocol protected interface
100 // ---------------------------------------------------------------------
103 GetSoftwareBreakpointTrapOpcode(size_t trap_opcode_size_hint,
104 size_t &actual_opcode_size,
105 const uint8_t *&trap_opcode_bytes) override;
108 MainLoop::SignalHandleUP m_sigchld_handle;
110 LazyBool m_supports_mem_region;
111 std::vector<std::pair<MemoryRegionInfo, FileSpec>> m_mem_region_cache;
113 // ---------------------------------------------------------------------
114 // Private Instance Methods
115 // ---------------------------------------------------------------------
116 NativeProcessNetBSD();
118 bool HasThreadNoLock(lldb::tid_t thread_id);
120 NativeThreadNetBSDSP AddThread(lldb::tid_t thread_id);
122 Status LaunchInferior(MainLoop &mainloop, ProcessLaunchInfo &launch_info);
123 void AttachToInferior(MainLoop &mainloop, lldb::pid_t pid, Status &error);
125 void MonitorCallback(lldb::pid_t pid, int signal);
126 void MonitorExited(lldb::pid_t pid, int signal, int status);
127 void MonitorSIGSTOP(lldb::pid_t pid);
128 void MonitorSIGTRAP(lldb::pid_t pid);
129 void MonitorSignal(lldb::pid_t pid, int signal);
131 Status GetSoftwareBreakpointPCOffset(uint32_t &actual_opcode_size);
132 Status FixupBreakpointPCAsNeeded(NativeThreadNetBSD &thread);
133 Status PopulateMemoryRegionCache();
134 void SigchldHandler();
136 ::pid_t Attach(lldb::pid_t pid, Status &error);
138 Status ReinitializeThreads();
141 } // namespace process_netbsd
142 } // namespace lldb_private
144 #endif // #ifndef liblldb_NativeProcessNetBSD_H_