src/apps/debugger/jobs/LoadSourceCodeJob.cpp

   1 /*
   2  * Copyright 2012, Rene Gollent, rene@gollent.com.
   3  * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
   4  * Distributed under the terms of the MIT License.
   5  */
   6
   7 #include "Jobs.h"
   8
   9 #include <AutoLocker.h>
  10
  11 #include "Architecture.h"
  12 #include "DebuggerInterface.h"
  13 #include "DisassembledCode.h"
  14 #include "Function.h"
  15 #include "FunctionInstance.h"
  16 #include "FileSourceCode.h"
  17 #include "Team.h"
  18 #include "TeamDebugInfo.h"
  19
  20
  21 LoadSourceCodeJob::LoadSourceCodeJob(
  22         DebuggerInterface* debuggerInterface, Architecture* architecture,
  23         Team* team, FunctionInstance* functionInstance, bool loadForFunction)
  24         :
  25         fKey(functionInstance, JOB_TYPE_LOAD_SOURCE_CODE),
  26         fDebuggerInterface(debuggerInterface),
  27         fArchitecture(architecture),
  28         fTeam(team),
  29         fFunctionInstance(functionInstance),
  30         fLoadForFunction(loadForFunction)
  31 {
  32         fFunctionInstance->AcquireReference();
  33
  34         SetDescription("Loading source code for function %s",
  35                 fFunctionInstance->PrettyName().String());
  36 }
  37
  38
  39 LoadSourceCodeJob::~LoadSourceCodeJob()
  40 {
  41         fFunctionInstance->ReleaseReference();
  42 }
  43
  44
  45 const JobKey&
  46 LoadSourceCodeJob::Key() const
  47 {
  48         return fKey;
  49 }
  50
  51
  52 status_t
  53 LoadSourceCodeJob::Do()
  54 {
  55         // if requested, try loading the source code for the function
  56         Function* function = fFunctionInstance->GetFunction();
  57         if (fLoadForFunction) {
  58                 FileSourceCode* sourceCode;
  59                 status_t error = fTeam->DebugInfo()->LoadSourceCode(
  60                         function->SourceFile(), sourceCode);
  61
  62                 AutoLocker<Team> locker(fTeam);
  63
  64                 if (error == B_OK) {
  65                         function->SetSourceCode(sourceCode, FUNCTION_SOURCE_LOADED);
  66                         sourceCode->ReleaseReference();
  67                         return B_OK;
  68                 }
  69
  70                 function->SetSourceCode(NULL, FUNCTION_SOURCE_UNAVAILABLE);
  71         }
  72
  73         // Only try to load the function instance code, if it's not overridden yet.
  74         AutoLocker<Team> locker(fTeam);
  75         if (fFunctionInstance->SourceCodeState() != FUNCTION_SOURCE_LOADING)
  76                 return B_OK;
  77         locker.Unlock();
  78
  79         // disassemble the function
  80         DisassembledCode* sourceCode = NULL;
  81         status_t error = fTeam->DebugInfo()->DisassembleFunction(fFunctionInstance,
  82                 sourceCode);
  83
  84         // set the result
  85         locker.Lock();
  86         if (error == B_OK) {
  87                 if (fFunctionInstance->SourceCodeState() == FUNCTION_SOURCE_LOADING) {
  88                         // various parts of the debugger expect functions to have only
  89                         // one of source or disassembly available. As such, if the current
  90                         // function had source code previously active, unset it when
  91                         // explicitly asked for disassembly. This needs to be done first
  92                         // since Function will clear the disassembled code states of all
  93                         // its child instances.
  94                         if (function->SourceCodeState() == FUNCTION_SOURCE_LOADED) {
  95                                 FileSourceCode* sourceCode = function->GetSourceCode();
  96                                 function->SetSourceCode(sourceCode,
  97                                         FUNCTION_SOURCE_NOT_LOADED);
  98                         }
  99
 100                         fFunctionInstance->SetSourceCode(sourceCode,
 101                                 FUNCTION_SOURCE_LOADED);
 102                         sourceCode->ReleaseReference();
 103                 }
 104         } else
 105                 fFunctionInstance->SetSourceCode(NULL, FUNCTION_SOURCE_UNAVAILABLE);
 106
 107         return error;
 108 }