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

   1 //===-- InstrumentationRuntime.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 // C Includes
  11 // C++ Includes
  12 // Other libraries and framework includes
  13 // Project includes
  14 #include "lldb/Target/InstrumentationRuntime.h"
  15 #include "lldb/Core/Module.h"
  16 #include "lldb/Core/ModuleList.h"
  17 #include "lldb/Core/PluginManager.h"
  18 #include "lldb/Target/Process.h"
  19 #include "lldb/Utility/RegularExpression.h"
  20 #include "lldb/lldb-private.h"
  21
  22 using namespace lldb;
  23 using namespace lldb_private;
  24
  25 void InstrumentationRuntime::ModulesDidLoad(
  26     lldb_private::ModuleList &module_list, lldb_private::Process *process,
  27     InstrumentationRuntimeCollection &runtimes) {
  28   InstrumentationRuntimeCreateInstance create_callback = nullptr;
  29   InstrumentationRuntimeGetType get_type_callback;
  30   for (uint32_t idx = 0;; ++idx) {
  31     create_callback =
  32         PluginManager::GetInstrumentationRuntimeCreateCallbackAtIndex(idx);
  33     if (create_callback == nullptr)
  34       break;
  35     get_type_callback =
  36         PluginManager::GetInstrumentationRuntimeGetTypeCallbackAtIndex(idx);
  37     InstrumentationRuntimeType type = get_type_callback();
  38
  39     InstrumentationRuntimeCollection::iterator pos;
  40     pos = runtimes.find(type);
  41     if (pos == runtimes.end()) {
  42       runtimes[type] = create_callback(process->shared_from_this());
  43     }
  44   }
  45 }
  46
  47 void InstrumentationRuntime::ModulesDidLoad(
  48     lldb_private::ModuleList &module_list) {
  49   if (IsActive())
  50     return;
  51
  52   if (GetRuntimeModuleSP()) {
  53     Activate();
  54     return;
  55   }
  56
  57   module_list.ForEach([this](const lldb::ModuleSP module_sp) -> bool {
  58     const FileSpec &file_spec = module_sp->GetFileSpec();
  59     if (!file_spec)
  60       return true; // Keep iterating.
  61
  62     const RegularExpression &runtime_regex = GetPatternForRuntimeLibrary();
  63     if (runtime_regex.Execute(file_spec.GetFilename().GetCString()) ||
  64         module_sp->IsExecutable()) {
  65       if (CheckIfRuntimeIsValid(module_sp)) {
  66         SetRuntimeModuleSP(module_sp);
  67         Activate();
  68         return false; // Stop iterating, we're done.
  69       }
  70     }
  71
  72     return true;
  73   });
  74 }
  75
  76 lldb::ThreadCollectionSP
  77 InstrumentationRuntime::GetBacktracesFromExtendedStopInfo(
  78     StructuredData::ObjectSP info) {
  79   return ThreadCollectionSP(new ThreadCollection());
  80 }