tools/llvm-readobj/WindowsResourceDumper.cpp

   1 //===-- WindowsResourceDumper.cpp - Windows Resource printer --------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file implements the Windows resource (.res) dumper for llvm-readobj.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "WindowsResourceDumper.h"
  14 #include "Error.h"
  15 #include "llvm/Object/WindowsResource.h"
  16 #include "llvm/Support/ConvertUTF.h"
  17 #include "llvm/Support/ScopedPrinter.h"
  18
  19 namespace llvm {
  20 namespace object {
  21 namespace WindowsRes {
  22
  23 std::string stripUTF16(const ArrayRef<UTF16> &UTF16Str) {
  24   std::string Result;
  25   Result.reserve(UTF16Str.size());
  26
  27   for (UTF16 Ch : UTF16Str) {
  28     // UTF16Str will have swapped byte order in case of big-endian machines.
  29     // Swap it back in such a case.
  30     uint16_t ChValue = support::endian::byte_swap(Ch, support::little);
  31     if (ChValue <= 0xFF)
  32       Result += ChValue;
  33     else
  34       Result += '?';
  35   }
  36   return Result;
  37 }
  38
  39 Error Dumper::printData() {
  40   auto EntryPtrOrErr = WinRes->getHeadEntry();
  41   if (!EntryPtrOrErr)
  42     return EntryPtrOrErr.takeError();
  43   auto EntryPtr = *EntryPtrOrErr;
  44
  45   bool IsEnd = false;
  46   while (!IsEnd) {
  47     printEntry(EntryPtr);
  48
  49     if (auto Err = EntryPtr.moveNext(IsEnd))
  50       return Err;
  51   }
  52   return Error::success();
  53 }
  54
  55 void Dumper::printEntry(const ResourceEntryRef &Ref) {
  56   if (Ref.checkTypeString()) {
  57     auto NarrowStr = stripUTF16(Ref.getTypeString());
  58     SW.printString("Resource type (string)", NarrowStr);
  59   } else {
  60     SmallString<20> IDStr;
  61     raw_svector_ostream OS(IDStr);
  62     printResourceTypeName(Ref.getTypeID(), OS);
  63     SW.printString("Resource type (int)", IDStr);
  64   }
  65
  66   if (Ref.checkNameString()) {
  67     auto NarrowStr = stripUTF16(Ref.getNameString());
  68     SW.printString("Resource name (string)", NarrowStr);
  69   } else
  70     SW.printNumber("Resource name (int)", Ref.getNameID());
  71
  72   SW.printNumber("Data version", Ref.getDataVersion());
  73   SW.printHex("Memory flags", Ref.getMemoryFlags());
  74   SW.printNumber("Language ID", Ref.getLanguage());
  75   SW.printNumber("Version (major)", Ref.getMajorVersion());
  76   SW.printNumber("Version (minor)", Ref.getMinorVersion());
  77   SW.printNumber("Characteristics", Ref.getCharacteristics());
  78   SW.printNumber("Data size", (uint64_t)Ref.getData().size());
  79   SW.printBinary("Data:", Ref.getData());
  80   SW.startLine() << "\n";
  81 }
  82
  83 } // namespace WindowsRes
  84 } // namespace object
  85 } // namespace llvm