Fixup selectors

DYLDYN.cpp

// Resolve the relocations for all symbols we currently know about.
void RuntimeDyldImpl::resolveRelocations() {
  MutexGuard locked(lock);

  // Print out the sections prior to relocation.
  DEBUG(
    for (int i = 0, e = Sections.size(); i != e; ++i)
      dumpSectionMemory(Sections[i], "before relocations");
  );

  // First, resolve relocations associated with external symbols.
  resolveExternalSymbols();

  // Iterate over all outstanding relocations
  for (auto it = Relocations.begin(), e = Relocations.end(); it != e; ++it) {
    // The Section here (Sections[i]) refers to the section in which the
    // symbol for the relocation is located.  The SectionID in the relocation
    // entry provides the section to which the relocation will be applied.
    int Idx = it->first;
    uint64_t Addr = Sections[Idx].getLoadAddress();
    DEBUG(dbgs() << "Resolving relocations Section #" << Idx << "\t"
                 << format("%p", (uintptr_t)Addr) << "\n");
    resolveRelocationList(it->second, Addr);

    // OBJC CLASSES
    if (Sections[Idx].getName().startswith("__objc_classrefs")) {
      errs() << "OBJC CLASSES" << "\n";

      SectionEntry &selrefsSection = Sections[Idx];
      
      uint64_t FinalAddress = selrefsSection.getLoadAddress() + it->second[0].Offset;
      errs() << "FinalADdress: " << (void *)FinalAddress << "\n";
//      __objc_selrefs

      uint8_t *DataAddr = selrefsSection.getAddress();
      uint64_t LoadAddr = selrefsSection.getLoadAddress();

      Class *classrefs = (uint8_t * )
        remapClassRef(&classrefs[i]);
      }

      SEL *sels = (SEL *)DataAddr;

      for (i = 0; i < count; i++) {
        SEL *selector = (SEL *)cursor;
        const char *name = sel_getName(*selector);
        errs() << "Trying to register selector: " << name << "\n";
        *selector = sel_registerName(name);
      }
//      sels[0];
      exit(1);
    }

    // OBJC SELECTORS
    if (Sections[Idx].getName().startswith("__objc_selrefs")) {
      errs() << "OBJC SELECTORS" << "\n";

      SectionEntry &selrefsSection = Sections[Idx];

      uint64_t FinalAddress = selrefsSection.getLoadAddress() + it->second[0].Offset;
      errs() << "FinalADdress: " << (void *)FinalAddress << "\n";
        //      __objc_selrefs

      uint8_t *DataAddr = selrefsSection.getAddress();
      uint64_t LoadAddr = selrefsSection.getLoadAddress();

      SEL *sels = (SEL *)DataAddr;

      for (uint8_t *cursor = DataAddr;
           cursor < (DataAddr + selrefsSection.getSize());
           cursor = cursor + sizeof(SEL)) {
        SEL *selector = (SEL *)cursor;
        const char *name = sel_getName(*selector);
        errs() << "Trying to register selector: " << name << "\n";
        *selector = sel_registerName(name);
      }
        //      sels[0];
        //      exit(1);
    }
  }
  Relocations.clear();

  // Print out sections after relocation.
  DEBUG(
    for (int i = 0, e = Sections.size(); i != e; ++i)
      dumpSectionMemory(Sections[i], "after relocations");
  );

}