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