tools/llvm-readobj/WindowsResourceDumper.cpp

   1 //===-- WindowsResourceDumper.cpp - Windows Resource printer --------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file implements the Windows resource (.res) dumper for llvm-readobj.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "WindowsResourceDumper.h"
  15 #include "Error.h"
  16 #include "llvm/Object/WindowsResource.h"
  17 #include "llvm/Support/ConvertUTF.h"
  18 #include "llvm/Support/ScopedPrinter.h"
  19
  20 namespace llvm {
  21 namespace object {
  22 namespace WindowsRes {
  23
  24 std::string stripUTF16(const ArrayRef<UTF16> &UTF16Str) {
  25   std::string Result;
  26   Result.reserve(UTF16Str.size());
  27
  28   for (UTF16 Ch : UTF16Str) {
  29     // UTF16Str will have swapped byte order in case of big-endian machines.
  30     // Swap it back in such a case.
  31     uint16_t ChValue = support::endian::byte_swap(Ch, support::little);
  32     if (ChValue <= 0xFF)
  33       Result += ChValue;
  34     else
  35       Result += '?';
  36   }
  37   return Result;
  38 }
  39
  40 Error Dumper::printData() {
  41   auto EntryPtrOrErr = WinRes->getHeadEntry();
  42   if (!EntryPtrOrErr)
  43     return EntryPtrOrErr.takeError();
  44   auto EntryPtr = *EntryPtrOrErr;
  45
  46   bool IsEnd = false;
  47   while (!IsEnd) {
  48     printEntry(EntryPtr);
  49
  50     if (auto Err = EntryPtr.moveNext(IsEnd))
  51       return Err;
  52   }
  53   return Error::success();
  54 }
  55
  56 void Dumper::printEntry(const ResourceEntryRef &Ref) {
  57   if (Ref.checkTypeString()) {
  58     auto NarrowStr = stripUTF16(Ref.getTypeString());
  59     SW.printString("Resource type (string)", NarrowStr);
  60   } else
  61     SW.printNumber("Resource type (int)", Ref.getTypeID());
  62
  63   if (Ref.checkNameString()) {
  64     auto NarrowStr = stripUTF16(Ref.getNameString());
  65     SW.printString("Resource name (string)", NarrowStr);
  66   } else
  67     SW.printNumber("Resource name (int)", Ref.getNameID());
  68
  69   SW.printNumber("Data version", Ref.getDataVersion());
  70   SW.printHex("Memory flags", Ref.getMemoryFlags());
  71   SW.printNumber("Language ID", Ref.getLanguage());
  72   SW.printNumber("Version (major)", Ref.getMajorVersion());
  73   SW.printNumber("Version (minor)", Ref.getMinorVersion());
  74   SW.printNumber("Characteristics", Ref.getCharacteristics());
  75   SW.printNumber("Data size", (uint64_t)Ref.getData().size());
  76   SW.printBinary("Data:", Ref.getData());
  77   SW.startLine() << "\n";
  78 }
  79
  80 } // namespace WindowsRes
  81 } // namespace object
  82 } // namespace llvm