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 "Plugins/Process/POSIX/NativeProcessELF.h"
13#include "lldb/Target/MemoryRegionInfo.h"
14#include "lldb/Utility/ArchSpec.h"
15#include "lldb/Utility/FileSpec.h"
16
17#include "NativeThreadNetBSD.h"
18
19namespace lldb_private {
20namespace 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.
28class NativeProcessNetBSD : public NativeProcessELF {
29public:
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 Interrupt() override;
51
52  Status Kill() override;
53
54  Status GetMemoryRegionInfo(lldb::addr_t load_addr,
55                             MemoryRegionInfo &range_info) override;
56
57  Status ReadMemory(lldb::addr_t addr, void *buf, size_t size,
58                    size_t &bytes_read) override;
59
60  Status WriteMemory(lldb::addr_t addr, const void *buf, size_t size,
61                     size_t &bytes_written) override;
62
63  Status AllocateMemory(size_t size, uint32_t permissions,
64                        lldb::addr_t &addr) override;
65
66  Status DeallocateMemory(lldb::addr_t addr) override;
67
68  lldb::addr_t GetSharedLibraryInfoAddress() override;
69
70  size_t UpdateThreads() override;
71
72  const ArchSpec &GetArchitecture() const override { return m_arch; }
73
74  Status SetBreakpoint(lldb::addr_t addr, uint32_t size,
75                       bool hardware) override;
76
77  Status GetLoadedModuleFileSpec(const char *module_path,
78                                 FileSpec &file_spec) override;
79
80  Status GetFileLoadAddress(const llvm::StringRef &file_name,
81                            lldb::addr_t &load_addr) override;
82
83  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>>
84  GetAuxvData() const override;
85
86  // Interface used by NativeRegisterContext-derived classes.
87  static Status PtraceWrapper(int req, lldb::pid_t pid, void *addr = nullptr,
88                              int data = 0, int *result = nullptr);
89
90private:
91  MainLoop::SignalHandleUP m_sigchld_handle;
92  ArchSpec m_arch;
93  LazyBool m_supports_mem_region = eLazyBoolCalculate;
94  std::vector<std::pair<MemoryRegionInfo, FileSpec>> m_mem_region_cache;
95
96  // Private Instance Methods
97  NativeProcessNetBSD(::pid_t pid, int terminal_fd, NativeDelegate &delegate,
98                      const ArchSpec &arch, MainLoop &mainloop);
99
100  bool HasThreadNoLock(lldb::tid_t thread_id);
101
102  NativeThreadNetBSD &AddThread(lldb::tid_t thread_id);
103  void RemoveThread(lldb::tid_t thread_id);
104
105  void MonitorCallback(lldb::pid_t pid, int signal);
106  void MonitorExited(lldb::pid_t pid, WaitStatus status);
107  void MonitorSIGSTOP(lldb::pid_t pid);
108  void MonitorSIGTRAP(lldb::pid_t pid);
109  void MonitorSignal(lldb::pid_t pid, int signal);
110
111  Status PopulateMemoryRegionCache();
112  void SigchldHandler();
113
114  Status Attach();
115  Status ReinitializeThreads();
116};
117
118} // namespace process_netbsd
119} // namespace lldb_private
120
121#endif // #ifndef liblldb_NativeProcessNetBSD_H_
122