src/kits/debugger/dwarf/DwarfManager.cpp

   1 /*
   2  * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Copyright 2014, Rene Gollent, rene@gollent.com.
   4  * Distributed under the terms of the MIT License.
   5  */
   6
   7 #include "DwarfManager.h"
   8
   9 #include <new>
  10
  11 #include <AutoDeleter.h>
  12 #include <AutoLocker.h>
  13
  14 #include "DwarfFile.h"
  15 #include "DwarfFileLoadingState.h"
  16
  17
  18 DwarfManager::DwarfManager(uint8 addressSize)
  19         :
  20         fAddressSize(addressSize),
  21         fLock("dwarf manager")
  22 {
  23 }
  24
  25
  26 DwarfManager::~DwarfManager()
  27 {
  28 }
  29
  30
  31 status_t
  32 DwarfManager::Init()
  33 {
  34         return fLock.InitCheck();
  35 }
  36
  37
  38 status_t
  39 DwarfManager::LoadFile(const char* fileName, DwarfFileLoadingState& _state)
  40 {
  41         AutoLocker<DwarfManager> locker(this);
  42
  43         DwarfFile* file = _state.dwarfFile;
  44         BReference<DwarfFile> fileReference;
  45         if (file == NULL) {
  46                 file = new(std::nothrow) DwarfFile;
  47                 if (file == NULL)
  48                         return B_NO_MEMORY;
  49                 fileReference.SetTo(file, true);
  50                 _state.dwarfFile = file;
  51         } else
  52                 fileReference.SetTo(file);
  53
  54         status_t error;
  55         if (_state.externalInfoFileName.IsEmpty()) {
  56                 error = file->StartLoading(fileName, _state.externalInfoFileName);
  57                 if (error != B_OK) {
  58                         // only preserve state in the failure case if an external
  59                         // debug information reference was found, but the corresponding
  60                         // file could not be located on disk.
  61                         _state.state = _state.externalInfoFileName.IsEmpty()
  62                                 ? DWARF_FILE_LOADING_STATE_FAILED
  63                                 : DWARF_FILE_LOADING_STATE_USER_INPUT_NEEDED;
  64
  65                         return error;
  66                 }
  67         }
  68
  69         error = file->Load(fAddressSize, _state.locatedExternalInfoPath);
  70         if (error != B_OK) {
  71                 _state.state = DWARF_FILE_LOADING_STATE_FAILED;
  72                 return error;
  73         }
  74
  75         fFiles.Add(file);
  76
  77         fileReference.Detach();
  78                 // keep a reference for ourselves in the list.
  79
  80         _state.state = DWARF_FILE_LOADING_STATE_SUCCEEDED;
  81
  82         return B_OK;
  83 }
  84
  85
  86 status_t
  87 DwarfManager::FinishLoading()
  88 {
  89         AutoLocker<DwarfManager> locker(this);
  90
  91         for (FileList::Iterator it = fFiles.GetIterator();
  92                         DwarfFile* file = it.Next();) {
  93                 status_t error = file->FinishLoading();
  94                 if (error != B_OK)
  95                         return error;
  96         }
  97
  98         return B_OK;
  99 }