contrib/llvm/tools/lldb/source/Target/OperatingSystem.cpp

   1 //===-- OperatingSystem.cpp -------------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "lldb/Target/OperatingSystem.h"
  11 #include "lldb/Core/PluginManager.h"
  12 #include "lldb/Target/Thread.h"
  13
  14 using namespace lldb;
  15 using namespace lldb_private;
  16
  17 OperatingSystem *OperatingSystem::FindPlugin(Process *process,
  18                                              const char *plugin_name) {
  19   OperatingSystemCreateInstance create_callback = nullptr;
  20   if (plugin_name) {
  21     ConstString const_plugin_name(plugin_name);
  22     create_callback =
  23         PluginManager::GetOperatingSystemCreateCallbackForPluginName(
  24             const_plugin_name);
  25     if (create_callback) {
  26       std::unique_ptr<OperatingSystem> instance_ap(
  27           create_callback(process, true));
  28       if (instance_ap)
  29         return instance_ap.release();
  30     }
  31   } else {
  32     for (uint32_t idx = 0;
  33          (create_callback =
  34               PluginManager::GetOperatingSystemCreateCallbackAtIndex(idx)) !=
  35          nullptr;
  36          ++idx) {
  37       std::unique_ptr<OperatingSystem> instance_ap(
  38           create_callback(process, false));
  39       if (instance_ap)
  40         return instance_ap.release();
  41     }
  42   }
  43   return nullptr;
  44 }
  45
  46 OperatingSystem::OperatingSystem(Process *process) : m_process(process) {}
  47
  48 OperatingSystem::~OperatingSystem() = default;
  49
  50 bool OperatingSystem::IsOperatingSystemPluginThread(
  51     const lldb::ThreadSP &thread_sp) {
  52   if (thread_sp)
  53     return thread_sp->IsOperatingSystemPluginThread();
  54   return false;
  55 }