C++ Compilation::getRelocatableMethodCodeStart方法代码示例

uint8_t TR::ExternalOrderedPair32BitRelocation::collectModifier()
   {
   TR::Compilation *comp = TR::comp();
   uint8_t * relocatableMethodCodeStart = (uint8_t *)comp->getRelocatableMethodCodeStart();
   uint8_t * updateLocation;
   uint8_t * updateLocation2;
   TR_ExternalRelocationTargetKind kind = getTargetKind();

   if (TR::Compiler->target.cpu.isPower() &&
          (kind == TR_ArrayCopyHelper || kind == TR_ArrayCopyToc || kind == TR_RamMethod || kind == TR_GlobalValue || kind == TR_BodyInfoAddressLoad || kind == TR_DataAddress || kind == TR_DebugCounter))
      {
      TR::Instruction *instr = (TR::Instruction *)getUpdateLocation();
      TR::Instruction *instr2 = (TR::Instruction *)getLocation2();
      updateLocation = instr->getBinaryEncoding();
      updateLocation2 = instr2->getBinaryEncoding();
      }
   else
      {
      updateLocation = getUpdateLocation();
      updateLocation2 = getLocation2();
      }

   int32_t iLoc = updateLocation - relocatableMethodCodeStart;
   int32_t iLoc2 = updateLocation2 - relocatableMethodCodeStart;
   AOTcgDiag0(comp, "TR::ExternalOrderedPair32BitRelocation::collectModifier\n");
   if ( (iLoc < MIN_SHORT_OFFSET  || iLoc > MAX_SHORT_OFFSET ) || (iLoc2 < MIN_SHORT_OFFSET || iLoc2 > MAX_SHORT_OFFSET ) )
      return RELOCATION_TYPE_WIDE_OFFSET | RELOCATION_TYPE_ORDERED_PAIR;

   return RELOCATION_TYPE_ORDERED_PAIR;
   }

void TR::ExternalRelocation::apply(TR::CodeGenerator *codeGen)
   {
   TR::Compilation *comp = codeGen->comp();
   AOTcgDiag1(comp, "TR::ExternalRelocation::apply updateLocation=" POINTER_PRINTF_FORMAT " \n", getUpdateLocation());
   uint8_t * relocatableMethodCodeStart = (uint8_t *)comp->getRelocatableMethodCodeStart();
   getRelocationRecord()->addRelocationEntry((uint32_t)(getUpdateLocation() - relocatableMethodCodeStart));
   }

void TR::ExternalOrderedPair32BitRelocation::apply(TR::CodeGenerator *codeGen)
   {
   TR::Compilation *comp = codeGen->comp();
   AOTcgDiag0(comp, "TR::ExternalOrderedPair32BitRelocation::apply\n");

   TR::IteratedExternalRelocation *rec = getRelocationRecord();
   uint8_t *codeStart = (uint8_t *)comp->getRelocatableMethodCodeStart();
   TR_ExternalRelocationTargetKind kind = getRelocationRecord()->getTargetKind();
   if (TR::Compiler->target.cpu.isPower() &&
      (kind == TR_ArrayCopyHelper || kind == TR_ArrayCopyToc || kind == TR_RamMethodSequence || kind == TR_GlobalValue || kind == TR_BodyInfoAddressLoad || kind == TR_DataAddress || kind == TR_DebugCounter))
      {
      TR::Instruction *instr = (TR::Instruction *)getUpdateLocation();
      TR::Instruction *instr2 = (TR::Instruction *)getLocation2();
      rec->addRelocationEntry((uint32_t)(instr->getBinaryEncoding() - codeStart));
      rec->addRelocationEntry((uint32_t)(instr2->getBinaryEncoding() - codeStart));
      }
   else
      {
      rec->addRelocationEntry(getUpdateLocation() - codeStart);
      rec->addRelocationEntry(getLocation2() - codeStart);
      }
   }

void
OMR::CodeGenPhase::performProcessRelocationsPhase(TR::CodeGenerator * cg, TR::CodeGenPhase * phase)
   {
   TR::Compilation * comp = cg->comp();

   if (comp->getPersistentInfo()->isRuntimeInstrumentationEnabled())
      {
      // This must be called before relocations to generate the relocation data for the profiled instructions.
      cg->createHWPRecords();
      }

   phase->reportPhase(ProcessRelocationsPhase);

   TR::LexicalMemProfiler mp(phase->getName(), comp->phaseMemProfiler());
   LexicalTimer pt(phase->getName(), comp->phaseTimer());

   cg->processRelocations();

   cg->resizeCodeMemory();
   cg->registerAssumptions();

   cg->syncCode(cg->getBinaryBufferStart(), cg->getBinaryBufferCursor() - cg->getBinaryBufferStart());

   if (comp->getOption(TR_EnableOSR))
     {
     if (comp->getOption(TR_TraceOSR) && !comp->getOption(TR_DisableOSRSharedSlots))
        {
        (*comp) << "OSRCompilationData is " << *comp->getOSRCompilationData() << "\n";
        }
     }

   if (comp->getOption(TR_AOT) && (comp->getOption(TR_TraceRelocatableDataCG) || comp->getOption(TR_TraceRelocatableDataDetailsCG) || comp->getOption(TR_TraceReloCG)))
     {
     traceMsg(comp, "\n<relocatableDataCG>\n");
     if (comp->getOption(TR_TraceRelocatableDataDetailsCG)) // verbose output
        {
        uint8_t * relocatableMethodCodeStart = (uint8_t *)comp->getRelocatableMethodCodeStart();
        traceMsg(comp, "Code start = %8x, Method start pc = %x, Method start pc offset = 0x%x\n", relocatableMethodCodeStart, cg->getCodeStart(), cg->getCodeStart() - relocatableMethodCodeStart);
        }
     cg->getAheadOfTimeCompile()->dumpRelocationData();
     traceMsg(comp, "</relocatableDataCG>\n");
     }

     if (debug("dumpCodeSizes"))
        {
        diagnostic("%08d   %s\n", cg->getCodeLength(), comp->signature());
        }

     if (comp->getCurrentMethod() == NULL)
        {
        comp->getMethodSymbol()->setMethodAddress(cg->getBinaryBufferStart());
        }

     TR_ASSERT(cg->getCodeLength() <= cg->getEstimatedCodeLength(),
               "Method length estimate must be conservatively large\n"
               "    codeLength = %d, estimatedCodeLength = %d \n",
               cg->getCodeLength(), cg->getEstimatedCodeLength()
               );

     // also trace the interal stack atlas
     cg->getStackAtlas()->close(cg);

     TR::SimpleRegex * regex = comp->getOptions()->getSlipTrap();
     if (regex && TR::SimpleRegex::match(regex, comp->getCurrentMethod()))
        {
        if (TR::Compiler->target.is64Bit())
        {
        setDllSlip((char*)cg->getCodeStart(),(char*)cg->getCodeStart()+cg->getCodeLength(),"SLIPDLL64", comp);
        }
     else
        {
        setDllSlip((char*)cg->getCodeStart(),(char*)cg->getCodeStart()+cg->getCodeLength(),"SLIPDLL31", comp);
        }
     }
   if (comp->getOption(TR_TraceCG) || comp->getOptions()->getTraceCGOption(TR_TraceCGPostBinaryEncoding))
      {
      const char * title = "Post Relocation Instructions";
      comp->getDebug()->dumpMethodInstrs(comp->getOutFile(), title, false, true);

      traceMsg(comp,"<snippets>");
      comp->getDebug()->print(comp->getOutFile(), cg->getSnippetList());
      traceMsg(comp,"\n</snippets>\n");

      auto iterator = cg->getSnippetList().begin();
      int32_t estimatedSnippetStart = cg->getEstimatedSnippetStart();
      while (iterator != cg->getSnippetList().end())
         {
         estimatedSnippetStart += (*iterator)->getLength(estimatedSnippetStart);
         ++iterator;
         }
      }
   }