ProcessTrace.h

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//===-- ProcessTrace.h ------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#ifndef LLDB_TARGET_PROCESSTRACE_H
#define LLDB_TARGET_PROCESSTRACE_H
 
#include "lldb/Target/PostMortemProcess.h"
#include "lldb/Utility/ConstString.h"
#include "lldb/Utility/Status.h"
 
namespace lldb_private {
 
/// Class that represents a defunct process loaded on memory via the "trace
/// load" command.
class ProcessTrace : public PostMortemProcess {
public:
  static void Initialize();
 
  static void Terminate();
 
  static llvm::StringRef GetPluginNameStatic() { return "trace"; }
 
  static llvm::StringRef GetPluginDescriptionStatic();
 
  ProcessTrace(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp,
               const FileSpec &core_file);
 
  ~ProcessTrace() override;
 
  bool CanDebug(lldb::TargetSP target_sp,
                bool plugin_specified_by_name) override;
 
  void DidAttach(ArchSpec &process_arch) override;
 
  DynamicLoader *GetDynamicLoader() override { return nullptr; }
 
  SystemRuntime *GetSystemRuntime() override { return nullptr; }
 
  llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
 
  Status DoDestroy() override;
 
  void RefreshStateAfterStop() override;
 
  Status WillResume() override {
    Status error;
    error.SetErrorStringWithFormatv(
        "error: {0} does not support resuming processes", GetPluginName());
    return error;
  }
 
  bool WarnBeforeDetach() const override { return false; }
 
  size_t ReadMemory(lldb::addr_t addr, void *buf, size_t size,
                    Status &error) override;
 
  size_t DoReadMemory(lldb::addr_t addr, void *buf, size_t size,
                      Status &error) override;
 
  ArchSpec GetArchitecture();
 
  bool GetProcessInfo(ProcessInstanceInfo &info) override;
 
protected:
  void Clear();
 
  bool DoUpdateThreadList(ThreadList &old_thread_list,
                          ThreadList &new_thread_list) override;
 
private:
  static lldb::ProcessSP CreateInstance(lldb::TargetSP target_sp,
                                        lldb::ListenerSP listener_sp,
                                        const FileSpec *crash_file_path,
                                        bool can_connect);
};
 
} // namespace lldb_private
 
#endif // LLDB_TARGET_PROCESSTRACE_H