C++ Symtab::FindSymbolContainingFileAddress方法代码示例

uint32_t
Module::ResolveSymbolContextForAddress (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc)
{
    Mutex::Locker locker (m_mutex);
    uint32_t resolved_flags = 0;

    // Clear the result symbol context in case we don't find anything
    sc.Clear();

    // Get the section from the section/offset address.
    const Section *section = so_addr.GetSection();

    // Make sure the section matches this module before we try and match anything
    if (section && section->GetModule() == this)
    {
        // If the section offset based address resolved itself, then this
        // is the right module.
        sc.module_sp = GetSP();
        resolved_flags |= eSymbolContextModule;

        // Resolve the compile unit, function, block, line table or line
        // entry if requested.
        if (resolve_scope & eSymbolContextCompUnit    ||
            resolve_scope & eSymbolContextFunction    ||
            resolve_scope & eSymbolContextBlock       ||
            resolve_scope & eSymbolContextLineEntry   )
        {
            SymbolVendor *symbols = GetSymbolVendor ();
            if (symbols)
                resolved_flags |= symbols->ResolveSymbolContext (so_addr, resolve_scope, sc);
        }

        // Resolve the symbol if requested, but don't re-look it up if we've already found it.
        if (resolve_scope & eSymbolContextSymbol && !(resolved_flags & eSymbolContextSymbol))
        {
            ObjectFile* ofile = GetObjectFile();
            if (ofile)
            {
                Symtab *symtab = ofile->GetSymtab();
                if (symtab)
                {
                    if (so_addr.IsSectionOffset())
                    {
                        sc.symbol = symtab->FindSymbolContainingFileAddress(so_addr.GetFileAddress());
                        if (sc.symbol)
                            resolved_flags |= eSymbolContextSymbol;
                    }
                }
            }
        }
    }
    return resolved_flags;
}

AddressClass ObjectFile::GetAddressClass(addr_t file_addr) {
  Symtab *symtab = GetSymtab();
  if (symtab) {
    Symbol *symbol = symtab->FindSymbolContainingFileAddress(file_addr);
    if (symbol) {
      if (symbol->ValueIsAddress()) {
        const SectionSP section_sp(symbol->GetAddressRef().GetSection());
        if (section_sp) {
          const SectionType section_type = section_sp->GetType();
          switch (section_type) {
          case eSectionTypeInvalid:
            return eAddressClassUnknown;
          case eSectionTypeCode:
            return eAddressClassCode;
          case eSectionTypeContainer:
            return eAddressClassUnknown;
          case eSectionTypeData:
          case eSectionTypeDataCString:
          case eSectionTypeDataCStringPointers:
          case eSectionTypeDataSymbolAddress:
          case eSectionTypeData4:
          case eSectionTypeData8:
          case eSectionTypeData16:
          case eSectionTypeDataPointers:
          case eSectionTypeZeroFill:
          case eSectionTypeDataObjCMessageRefs:
          case eSectionTypeDataObjCCFStrings:
          case eSectionTypeGoSymtab:
            return eAddressClassData;
          case eSectionTypeDebug:
          case eSectionTypeDWARFDebugAbbrev:
          case eSectionTypeDWARFDebugAddr:
          case eSectionTypeDWARFDebugAranges:
          case eSectionTypeDWARFDebugFrame:
          case eSectionTypeDWARFDebugInfo:
          case eSectionTypeDWARFDebugLine:
          case eSectionTypeDWARFDebugLoc:
          case eSectionTypeDWARFDebugMacInfo:
          case eSectionTypeDWARFDebugMacro:
          case eSectionTypeDWARFDebugPubNames:
          case eSectionTypeDWARFDebugPubTypes:
          case eSectionTypeDWARFDebugRanges:
          case eSectionTypeDWARFDebugStr:
          case eSectionTypeDWARFDebugStrOffsets:
          case eSectionTypeDWARFAppleNames:
          case eSectionTypeDWARFAppleTypes:
          case eSectionTypeDWARFAppleNamespaces:
          case eSectionTypeDWARFAppleObjC:
            return eAddressClassDebug;
          case eSectionTypeEHFrame:
          case eSectionTypeARMexidx:
          case eSectionTypeARMextab:
          case eSectionTypeCompactUnwind:
            return eAddressClassRuntime;
          case eSectionTypeELFSymbolTable:
          case eSectionTypeELFDynamicSymbols:
          case eSectionTypeELFRelocationEntries:
          case eSectionTypeELFDynamicLinkInfo:
          case eSectionTypeOther:
            return eAddressClassUnknown;
          case eSectionTypeAbsoluteAddress:
            // In case of absolute sections decide the address class based on
            // the symbol
            // type because the section type isn't specify if it is a code or a
            // data
            // section.
            break;
          }
        }
      }

      const SymbolType symbol_type = symbol->GetType();
      switch (symbol_type) {
      case eSymbolTypeAny:
        return eAddressClassUnknown;
      case eSymbolTypeAbsolute:
        return eAddressClassUnknown;
      case eSymbolTypeCode:
        return eAddressClassCode;
      case eSymbolTypeTrampoline:
        return eAddressClassCode;
      case eSymbolTypeResolver:
        return eAddressClassCode;
      case eSymbolTypeData:
        return eAddressClassData;
      case eSymbolTypeRuntime:
        return eAddressClassRuntime;
      case eSymbolTypeException:
        return eAddressClassRuntime;
      case eSymbolTypeSourceFile:
        return eAddressClassDebug;
      case eSymbolTypeHeaderFile:
        return eAddressClassDebug;
      case eSymbolTypeObjectFile:
        return eAddressClassDebug;
      case eSymbolTypeCommonBlock:
        return eAddressClassDebug;
      case eSymbolTypeBlock:
        return eAddressClassDebug;
      case eSymbolTypeLocal:
//.........这里部分代码省略.........

AddressClass
ObjectFile::GetAddressClass (addr_t file_addr)
{
    Symtab *symtab = GetSymtab(ObjectFile::eSymtabFromUnifiedSectionList);
    if (symtab)
    {
        Symbol *symbol = symtab->FindSymbolContainingFileAddress(file_addr);
        if (symbol)
        {
            if (symbol->ValueIsAddress())
            {
                const SectionSP section_sp (symbol->GetAddress().GetSection());
                if (section_sp)
                {
                    const SectionType section_type = section_sp->GetType();
                    switch (section_type)
                    {
                    case eSectionTypeInvalid:               return eAddressClassUnknown;
                    case eSectionTypeCode:                  return eAddressClassCode;
                    case eSectionTypeContainer:             return eAddressClassUnknown;
                    case eSectionTypeData:
                    case eSectionTypeDataCString:
                    case eSectionTypeDataCStringPointers:
                    case eSectionTypeDataSymbolAddress:
                    case eSectionTypeData4:
                    case eSectionTypeData8:
                    case eSectionTypeData16:
                    case eSectionTypeDataPointers:
                    case eSectionTypeZeroFill:
                    case eSectionTypeDataObjCMessageRefs:
                    case eSectionTypeDataObjCCFStrings:
                        return eAddressClassData;
                    case eSectionTypeDebug:
                    case eSectionTypeDWARFDebugAbbrev:
                    case eSectionTypeDWARFDebugAranges:
                    case eSectionTypeDWARFDebugFrame:
                    case eSectionTypeDWARFDebugInfo:
                    case eSectionTypeDWARFDebugLine:
                    case eSectionTypeDWARFDebugLoc:
                    case eSectionTypeDWARFDebugMacInfo:
                    case eSectionTypeDWARFDebugPubNames:
                    case eSectionTypeDWARFDebugPubTypes:
                    case eSectionTypeDWARFDebugRanges:
                    case eSectionTypeDWARFDebugStr:
                    case eSectionTypeDWARFAppleNames:
                    case eSectionTypeDWARFAppleTypes:
                    case eSectionTypeDWARFAppleNamespaces:
                    case eSectionTypeDWARFAppleObjC:
                        return eAddressClassDebug;
                    case eSectionTypeEHFrame:               return eAddressClassRuntime;
                    case eSectionTypeELFSymbolTable:
                    case eSectionTypeELFDynamicSymbols:
                    case eSectionTypeELFRelocationEntries:
                    case eSectionTypeELFDynamicLinkInfo:
                    case eSectionTypeOther:                 return eAddressClassUnknown;
                    }
                }
            }
            
            const SymbolType symbol_type = symbol->GetType();
            switch (symbol_type)
            {
            case eSymbolTypeAny:            return eAddressClassUnknown;
            case eSymbolTypeAbsolute:       return eAddressClassUnknown;
            case eSymbolTypeCode:           return eAddressClassCode;
            case eSymbolTypeTrampoline:     return eAddressClassCode;
            case eSymbolTypeResolver:       return eAddressClassCode;
            case eSymbolTypeData:           return eAddressClassData;
            case eSymbolTypeRuntime:        return eAddressClassRuntime;
            case eSymbolTypeException:      return eAddressClassRuntime;
            case eSymbolTypeSourceFile:     return eAddressClassDebug;
            case eSymbolTypeHeaderFile:     return eAddressClassDebug;
            case eSymbolTypeObjectFile:     return eAddressClassDebug;
            case eSymbolTypeCommonBlock:    return eAddressClassDebug;
            case eSymbolTypeBlock:          return eAddressClassDebug;
            case eSymbolTypeLocal:          return eAddressClassData;
            case eSymbolTypeParam:          return eAddressClassData;
            case eSymbolTypeVariable:       return eAddressClassData;
            case eSymbolTypeVariableType:   return eAddressClassDebug;
            case eSymbolTypeLineEntry:      return eAddressClassDebug;
            case eSymbolTypeLineHeader:     return eAddressClassDebug;
            case eSymbolTypeScopeBegin:     return eAddressClassDebug;
            case eSymbolTypeScopeEnd:       return eAddressClassDebug;
            case eSymbolTypeAdditional:     return eAddressClassUnknown;
            case eSymbolTypeCompiler:       return eAddressClassDebug;
            case eSymbolTypeInstrumentation:return eAddressClassDebug;
            case eSymbolTypeUndefined:      return eAddressClassUnknown;
            case eSymbolTypeObjCClass:      return eAddressClassRuntime;
            case eSymbolTypeObjCMetaClass:  return eAddressClassRuntime;
            case eSymbolTypeObjCIVar:       return eAddressClassRuntime;
            }
        }
    }
    return eAddressClassUnknown;
}

//.........这里部分代码省略.........

    if (load_addr == LLDB_INVALID_ADDRESS) {
      if (fallback_style != DumpStyleInvalid)
        return Dump(s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
      return false;
    }
    s->Address(load_addr, addr_size);
  } break;

  case DumpStyleResolvedDescription:
  case DumpStyleResolvedDescriptionNoModule:
  case DumpStyleResolvedDescriptionNoFunctionArguments:
  case DumpStyleNoFunctionName:
    if (IsSectionOffset()) {
      uint32_t pointer_size = 4;
      ModuleSP module_sp(GetModule());
      if (target)
        pointer_size = target->GetArchitecture().GetAddressByteSize();
      else if (module_sp)
        pointer_size = module_sp->GetArchitecture().GetAddressByteSize();

      bool showed_info = false;
      if (section_sp) {
        SectionType sect_type = section_sp->GetType();
        switch (sect_type) {
        case eSectionTypeData:
          if (module_sp) {
            SymbolVendor *sym_vendor = module_sp->GetSymbolVendor();
            if (sym_vendor) {
              Symtab *symtab = sym_vendor->GetSymtab();
              if (symtab) {
                const addr_t file_Addr = GetFileAddress();
                Symbol *symbol =
                    symtab->FindSymbolContainingFileAddress(file_Addr);
                if (symbol) {
                  const char *symbol_name = symbol->GetName().AsCString();
                  if (symbol_name) {
                    s->PutCString(symbol_name);
                    addr_t delta =
                        file_Addr - symbol->GetAddressRef().GetFileAddress();
                    if (delta)
                      s->Printf(" + %" PRIu64, delta);
                    showed_info = true;
                  }
                }
              }
            }
          }
          break;

        case eSectionTypeDataCString:
          // Read the C string from memory and display it
          showed_info = true;
          ReadCStringFromMemory(exe_scope, *this, s);
          break;

        case eSectionTypeDataCStringPointers:
          if (ReadAddress(exe_scope, *this, pointer_size, so_addr)) {
#if VERBOSE_OUTPUT
            s->PutCString("(char *)");
            so_addr.Dump(s, exe_scope, DumpStyleLoadAddress,
                         DumpStyleFileAddress);
            s->PutCString(": ");
#endif
            showed_info = true;
            ReadCStringFromMemory(exe_scope, so_addr, s);