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Imported Upstream version 1.0.0+dfsg1
[rustc.git] / src / llvm / tools / llvm-readobj / COFFDumper.cpp
1 //===-- COFFDumper.cpp - COFF-specific dumper -------------------*- C++ -*-===//
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 /// \file
11 /// \brief This file implements the COFF-specific dumper for llvm-readobj.
12 ///
13 //===----------------------------------------------------------------------===//
14
15 #include "llvm-readobj.h"
16 #include "ARMWinEHPrinter.h"
17 #include "Error.h"
18 #include "ObjDumper.h"
19 #include "StreamWriter.h"
20 #include "Win64EHDumper.h"
21 #include "llvm/ADT/DenseMap.h"
22 #include "llvm/ADT/SmallString.h"
23 #include "llvm/ADT/StringExtras.h"
24 #include "llvm/Object/COFF.h"
25 #include "llvm/Object/ObjectFile.h"
26 #include "llvm/Support/COFF.h"
27 #include "llvm/Support/Casting.h"
28 #include "llvm/Support/Compiler.h"
29 #include "llvm/Support/DataExtractor.h"
30 #include "llvm/Support/Format.h"
31 #include "llvm/Support/SourceMgr.h"
32 #include "llvm/Support/Win64EH.h"
33 #include "llvm/Support/raw_ostream.h"
34 #include <algorithm>
35 #include <cstring>
36 #include <system_error>
37 #include <time.h>
38
39 using namespace llvm;
40 using namespace llvm::object;
41 using namespace llvm::Win64EH;
42
43 namespace {
44
45 class COFFDumper : public ObjDumper {
46 public:
47 COFFDumper(const llvm::object::COFFObjectFile *Obj, StreamWriter& Writer)
48 : ObjDumper(Writer)
49 , Obj(Obj) {
50 cacheRelocations();
51 }
52
53 void printFileHeaders() override;
54 void printSections() override;
55 void printRelocations() override;
56 void printSymbols() override;
57 void printDynamicSymbols() override;
58 void printUnwindInfo() override;
59 void printCOFFImports() override;
60 void printCOFFExports() override;
61 void printCOFFDirectives() override;
62 void printCOFFBaseReloc() override;
63
64 private:
65 void printSymbol(const SymbolRef &Sym);
66 void printRelocation(const SectionRef &Section, const RelocationRef &Reloc);
67 void printDataDirectory(uint32_t Index, const std::string &FieldName);
68
69 void printDOSHeader(const dos_header *DH);
70 template <class PEHeader> void printPEHeader(const PEHeader *Hdr);
71 void printBaseOfDataField(const pe32_header *Hdr);
72 void printBaseOfDataField(const pe32plus_header *Hdr);
73
74 void printCodeViewLineTables(const SectionRef &Section);
75
76 void printCodeViewSymbolsSubsection(StringRef Subsection,
77 const SectionRef &Section,
78 uint32_t Offset);
79
80 void cacheRelocations();
81
82 std::error_code resolveSymbol(const coff_section *Section, uint64_t Offset,
83 SymbolRef &Sym);
84 std::error_code resolveSymbolName(const coff_section *Section,
85 uint64_t Offset, StringRef &Name);
86 void printImportedSymbols(iterator_range<imported_symbol_iterator> Range);
87 void printDelayImportedSymbols(
88 const DelayImportDirectoryEntryRef &I,
89 iterator_range<imported_symbol_iterator> Range);
90
91 typedef DenseMap<const coff_section*, std::vector<RelocationRef> > RelocMapTy;
92
93 const llvm::object::COFFObjectFile *Obj;
94 RelocMapTy RelocMap;
95 StringRef CVFileIndexToStringOffsetTable;
96 StringRef CVStringTable;
97 };
98
99 } // namespace
100
101
102 namespace llvm {
103
104 std::error_code createCOFFDumper(const object::ObjectFile *Obj,
105 StreamWriter &Writer,
106 std::unique_ptr<ObjDumper> &Result) {
107 const COFFObjectFile *COFFObj = dyn_cast<COFFObjectFile>(Obj);
108 if (!COFFObj)
109 return readobj_error::unsupported_obj_file_format;
110
111 Result.reset(new COFFDumper(COFFObj, Writer));
112 return readobj_error::success;
113 }
114
115 } // namespace llvm
116
117 // Given a a section and an offset into this section the function returns the
118 // symbol used for the relocation at the offset.
119 std::error_code COFFDumper::resolveSymbol(const coff_section *Section,
120 uint64_t Offset, SymbolRef &Sym) {
121 const auto &Relocations = RelocMap[Section];
122 for (const auto &Relocation : Relocations) {
123 uint64_t RelocationOffset;
124 if (std::error_code EC = Relocation.getOffset(RelocationOffset))
125 return EC;
126
127 if (RelocationOffset == Offset) {
128 Sym = *Relocation.getSymbol();
129 return readobj_error::success;
130 }
131 }
132 return readobj_error::unknown_symbol;
133 }
134
135 // Given a section and an offset into this section the function returns the name
136 // of the symbol used for the relocation at the offset.
137 std::error_code COFFDumper::resolveSymbolName(const coff_section *Section,
138 uint64_t Offset,
139 StringRef &Name) {
140 SymbolRef Symbol;
141 if (std::error_code EC = resolveSymbol(Section, Offset, Symbol))
142 return EC;
143 if (std::error_code EC = Symbol.getName(Name))
144 return EC;
145 return object_error::success;
146 }
147
148 static const EnumEntry<COFF::MachineTypes> ImageFileMachineType[] = {
149 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_UNKNOWN ),
150 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_AM33 ),
151 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_AMD64 ),
152 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARM ),
153 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARMNT ),
154 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_EBC ),
155 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_I386 ),
156 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_IA64 ),
157 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_M32R ),
158 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPS16 ),
159 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPSFPU ),
160 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPSFPU16),
161 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_POWERPC ),
162 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_POWERPCFP),
163 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_R4000 ),
164 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH3 ),
165 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH3DSP ),
166 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH4 ),
167 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH5 ),
168 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_THUMB ),
169 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_WCEMIPSV2)
170 };
171
172 static const EnumEntry<COFF::Characteristics> ImageFileCharacteristics[] = {
173 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_RELOCS_STRIPPED ),
174 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_EXECUTABLE_IMAGE ),
175 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LINE_NUMS_STRIPPED ),
176 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LOCAL_SYMS_STRIPPED ),
177 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_AGGRESSIVE_WS_TRIM ),
178 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LARGE_ADDRESS_AWARE ),
179 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_BYTES_REVERSED_LO ),
180 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_32BIT_MACHINE ),
181 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_DEBUG_STRIPPED ),
182 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP),
183 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_NET_RUN_FROM_SWAP ),
184 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_SYSTEM ),
185 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_DLL ),
186 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_UP_SYSTEM_ONLY ),
187 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_BYTES_REVERSED_HI )
188 };
189
190 static const EnumEntry<COFF::WindowsSubsystem> PEWindowsSubsystem[] = {
191 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_UNKNOWN ),
192 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_NATIVE ),
193 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_WINDOWS_GUI ),
194 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_WINDOWS_CUI ),
195 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_POSIX_CUI ),
196 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI ),
197 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_APPLICATION ),
198 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER),
199 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER ),
200 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_ROM ),
201 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_XBOX ),
202 };
203
204 static const EnumEntry<COFF::DLLCharacteristics> PEDLLCharacteristics[] = {
205 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA ),
206 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE ),
207 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY ),
208 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NX_COMPAT ),
209 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NO_ISOLATION ),
210 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NO_SEH ),
211 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NO_BIND ),
212 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_APPCONTAINER ),
213 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_WDM_DRIVER ),
214 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_GUARD_CF ),
215 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_TERMINAL_SERVER_AWARE),
216 };
217
218 static const EnumEntry<COFF::SectionCharacteristics>
219 ImageSectionCharacteristics[] = {
220 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_TYPE_NO_PAD ),
221 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_CODE ),
222 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_INITIALIZED_DATA ),
223 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_UNINITIALIZED_DATA),
224 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_OTHER ),
225 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_INFO ),
226 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_REMOVE ),
227 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_COMDAT ),
228 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_GPREL ),
229 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_PURGEABLE ),
230 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_16BIT ),
231 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_LOCKED ),
232 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_PRELOAD ),
233 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_1BYTES ),
234 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_2BYTES ),
235 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_4BYTES ),
236 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_8BYTES ),
237 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_16BYTES ),
238 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_32BYTES ),
239 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_64BYTES ),
240 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_128BYTES ),
241 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_256BYTES ),
242 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_512BYTES ),
243 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_1024BYTES ),
244 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_2048BYTES ),
245 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_4096BYTES ),
246 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_8192BYTES ),
247 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_NRELOC_OVFL ),
248 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_DISCARDABLE ),
249 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_NOT_CACHED ),
250 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_NOT_PAGED ),
251 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_SHARED ),
252 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_EXECUTE ),
253 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_READ ),
254 LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_WRITE )
255 };
256
257 static const EnumEntry<COFF::SymbolBaseType> ImageSymType[] = {
258 { "Null" , COFF::IMAGE_SYM_TYPE_NULL },
259 { "Void" , COFF::IMAGE_SYM_TYPE_VOID },
260 { "Char" , COFF::IMAGE_SYM_TYPE_CHAR },
261 { "Short" , COFF::IMAGE_SYM_TYPE_SHORT },
262 { "Int" , COFF::IMAGE_SYM_TYPE_INT },
263 { "Long" , COFF::IMAGE_SYM_TYPE_LONG },
264 { "Float" , COFF::IMAGE_SYM_TYPE_FLOAT },
265 { "Double", COFF::IMAGE_SYM_TYPE_DOUBLE },
266 { "Struct", COFF::IMAGE_SYM_TYPE_STRUCT },
267 { "Union" , COFF::IMAGE_SYM_TYPE_UNION },
268 { "Enum" , COFF::IMAGE_SYM_TYPE_ENUM },
269 { "MOE" , COFF::IMAGE_SYM_TYPE_MOE },
270 { "Byte" , COFF::IMAGE_SYM_TYPE_BYTE },
271 { "Word" , COFF::IMAGE_SYM_TYPE_WORD },
272 { "UInt" , COFF::IMAGE_SYM_TYPE_UINT },
273 { "DWord" , COFF::IMAGE_SYM_TYPE_DWORD }
274 };
275
276 static const EnumEntry<COFF::SymbolComplexType> ImageSymDType[] = {
277 { "Null" , COFF::IMAGE_SYM_DTYPE_NULL },
278 { "Pointer" , COFF::IMAGE_SYM_DTYPE_POINTER },
279 { "Function", COFF::IMAGE_SYM_DTYPE_FUNCTION },
280 { "Array" , COFF::IMAGE_SYM_DTYPE_ARRAY }
281 };
282
283 static const EnumEntry<COFF::SymbolStorageClass> ImageSymClass[] = {
284 { "EndOfFunction" , COFF::IMAGE_SYM_CLASS_END_OF_FUNCTION },
285 { "Null" , COFF::IMAGE_SYM_CLASS_NULL },
286 { "Automatic" , COFF::IMAGE_SYM_CLASS_AUTOMATIC },
287 { "External" , COFF::IMAGE_SYM_CLASS_EXTERNAL },
288 { "Static" , COFF::IMAGE_SYM_CLASS_STATIC },
289 { "Register" , COFF::IMAGE_SYM_CLASS_REGISTER },
290 { "ExternalDef" , COFF::IMAGE_SYM_CLASS_EXTERNAL_DEF },
291 { "Label" , COFF::IMAGE_SYM_CLASS_LABEL },
292 { "UndefinedLabel" , COFF::IMAGE_SYM_CLASS_UNDEFINED_LABEL },
293 { "MemberOfStruct" , COFF::IMAGE_SYM_CLASS_MEMBER_OF_STRUCT },
294 { "Argument" , COFF::IMAGE_SYM_CLASS_ARGUMENT },
295 { "StructTag" , COFF::IMAGE_SYM_CLASS_STRUCT_TAG },
296 { "MemberOfUnion" , COFF::IMAGE_SYM_CLASS_MEMBER_OF_UNION },
297 { "UnionTag" , COFF::IMAGE_SYM_CLASS_UNION_TAG },
298 { "TypeDefinition" , COFF::IMAGE_SYM_CLASS_TYPE_DEFINITION },
299 { "UndefinedStatic", COFF::IMAGE_SYM_CLASS_UNDEFINED_STATIC },
300 { "EnumTag" , COFF::IMAGE_SYM_CLASS_ENUM_TAG },
301 { "MemberOfEnum" , COFF::IMAGE_SYM_CLASS_MEMBER_OF_ENUM },
302 { "RegisterParam" , COFF::IMAGE_SYM_CLASS_REGISTER_PARAM },
303 { "BitField" , COFF::IMAGE_SYM_CLASS_BIT_FIELD },
304 { "Block" , COFF::IMAGE_SYM_CLASS_BLOCK },
305 { "Function" , COFF::IMAGE_SYM_CLASS_FUNCTION },
306 { "EndOfStruct" , COFF::IMAGE_SYM_CLASS_END_OF_STRUCT },
307 { "File" , COFF::IMAGE_SYM_CLASS_FILE },
308 { "Section" , COFF::IMAGE_SYM_CLASS_SECTION },
309 { "WeakExternal" , COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL },
310 { "CLRToken" , COFF::IMAGE_SYM_CLASS_CLR_TOKEN }
311 };
312
313 static const EnumEntry<COFF::COMDATType> ImageCOMDATSelect[] = {
314 { "NoDuplicates", COFF::IMAGE_COMDAT_SELECT_NODUPLICATES },
315 { "Any" , COFF::IMAGE_COMDAT_SELECT_ANY },
316 { "SameSize" , COFF::IMAGE_COMDAT_SELECT_SAME_SIZE },
317 { "ExactMatch" , COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH },
318 { "Associative" , COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE },
319 { "Largest" , COFF::IMAGE_COMDAT_SELECT_LARGEST },
320 { "Newest" , COFF::IMAGE_COMDAT_SELECT_NEWEST }
321 };
322
323 static const EnumEntry<COFF::WeakExternalCharacteristics>
324 WeakExternalCharacteristics[] = {
325 { "NoLibrary", COFF::IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY },
326 { "Library" , COFF::IMAGE_WEAK_EXTERN_SEARCH_LIBRARY },
327 { "Alias" , COFF::IMAGE_WEAK_EXTERN_SEARCH_ALIAS }
328 };
329
330 template <typename T>
331 static std::error_code getSymbolAuxData(const COFFObjectFile *Obj,
332 COFFSymbolRef Symbol,
333 uint8_t AuxSymbolIdx, const T *&Aux) {
334 ArrayRef<uint8_t> AuxData = Obj->getSymbolAuxData(Symbol);
335 AuxData = AuxData.slice(AuxSymbolIdx * Obj->getSymbolTableEntrySize());
336 Aux = reinterpret_cast<const T*>(AuxData.data());
337 return readobj_error::success;
338 }
339
340 void COFFDumper::cacheRelocations() {
341 for (const SectionRef &S : Obj->sections()) {
342 const coff_section *Section = Obj->getCOFFSection(S);
343
344 for (const RelocationRef &Reloc : S.relocations())
345 RelocMap[Section].push_back(Reloc);
346
347 // Sort relocations by address.
348 std::sort(RelocMap[Section].begin(), RelocMap[Section].end(),
349 relocAddressLess);
350 }
351 }
352
353 void COFFDumper::printDataDirectory(uint32_t Index, const std::string &FieldName) {
354 const data_directory *Data;
355 if (Obj->getDataDirectory(Index, Data))
356 return;
357 W.printHex(FieldName + "RVA", Data->RelativeVirtualAddress);
358 W.printHex(FieldName + "Size", Data->Size);
359 }
360
361 void COFFDumper::printFileHeaders() {
362 time_t TDS = Obj->getTimeDateStamp();
363 char FormattedTime[20] = { };
364 strftime(FormattedTime, 20, "%Y-%m-%d %H:%M:%S", gmtime(&TDS));
365
366 {
367 DictScope D(W, "ImageFileHeader");
368 W.printEnum ("Machine", Obj->getMachine(),
369 makeArrayRef(ImageFileMachineType));
370 W.printNumber("SectionCount", Obj->getNumberOfSections());
371 W.printHex ("TimeDateStamp", FormattedTime, Obj->getTimeDateStamp());
372 W.printHex ("PointerToSymbolTable", Obj->getPointerToSymbolTable());
373 W.printNumber("SymbolCount", Obj->getNumberOfSymbols());
374 W.printNumber("OptionalHeaderSize", Obj->getSizeOfOptionalHeader());
375 W.printFlags ("Characteristics", Obj->getCharacteristics(),
376 makeArrayRef(ImageFileCharacteristics));
377 }
378
379 // Print PE header. This header does not exist if this is an object file and
380 // not an executable.
381 const pe32_header *PEHeader = nullptr;
382 if (error(Obj->getPE32Header(PEHeader)))
383 return;
384 if (PEHeader)
385 printPEHeader<pe32_header>(PEHeader);
386
387 const pe32plus_header *PEPlusHeader = nullptr;
388 if (error(Obj->getPE32PlusHeader(PEPlusHeader)))
389 return;
390 if (PEPlusHeader)
391 printPEHeader<pe32plus_header>(PEPlusHeader);
392
393 if (const dos_header *DH = Obj->getDOSHeader())
394 printDOSHeader(DH);
395 }
396
397 void COFFDumper::printDOSHeader(const dos_header *DH) {
398 DictScope D(W, "DOSHeader");
399 W.printString("Magic", StringRef(DH->Magic, sizeof(DH->Magic)));
400 W.printNumber("UsedBytesInTheLastPage", DH->UsedBytesInTheLastPage);
401 W.printNumber("FileSizeInPages", DH->FileSizeInPages);
402 W.printNumber("NumberOfRelocationItems", DH->NumberOfRelocationItems);
403 W.printNumber("HeaderSizeInParagraphs", DH->HeaderSizeInParagraphs);
404 W.printNumber("MinimumExtraParagraphs", DH->MinimumExtraParagraphs);
405 W.printNumber("MaximumExtraParagraphs", DH->MaximumExtraParagraphs);
406 W.printNumber("InitialRelativeSS", DH->InitialRelativeSS);
407 W.printNumber("InitialSP", DH->InitialSP);
408 W.printNumber("Checksum", DH->Checksum);
409 W.printNumber("InitialIP", DH->InitialIP);
410 W.printNumber("InitialRelativeCS", DH->InitialRelativeCS);
411 W.printNumber("AddressOfRelocationTable", DH->AddressOfRelocationTable);
412 W.printNumber("OverlayNumber", DH->OverlayNumber);
413 W.printNumber("OEMid", DH->OEMid);
414 W.printNumber("OEMinfo", DH->OEMinfo);
415 W.printNumber("AddressOfNewExeHeader", DH->AddressOfNewExeHeader);
416 }
417
418 template <class PEHeader>
419 void COFFDumper::printPEHeader(const PEHeader *Hdr) {
420 DictScope D(W, "ImageOptionalHeader");
421 W.printNumber("MajorLinkerVersion", Hdr->MajorLinkerVersion);
422 W.printNumber("MinorLinkerVersion", Hdr->MinorLinkerVersion);
423 W.printNumber("SizeOfCode", Hdr->SizeOfCode);
424 W.printNumber("SizeOfInitializedData", Hdr->SizeOfInitializedData);
425 W.printNumber("SizeOfUninitializedData", Hdr->SizeOfUninitializedData);
426 W.printHex ("AddressOfEntryPoint", Hdr->AddressOfEntryPoint);
427 W.printHex ("BaseOfCode", Hdr->BaseOfCode);
428 printBaseOfDataField(Hdr);
429 W.printHex ("ImageBase", Hdr->ImageBase);
430 W.printNumber("SectionAlignment", Hdr->SectionAlignment);
431 W.printNumber("FileAlignment", Hdr->FileAlignment);
432 W.printNumber("MajorOperatingSystemVersion",
433 Hdr->MajorOperatingSystemVersion);
434 W.printNumber("MinorOperatingSystemVersion",
435 Hdr->MinorOperatingSystemVersion);
436 W.printNumber("MajorImageVersion", Hdr->MajorImageVersion);
437 W.printNumber("MinorImageVersion", Hdr->MinorImageVersion);
438 W.printNumber("MajorSubsystemVersion", Hdr->MajorSubsystemVersion);
439 W.printNumber("MinorSubsystemVersion", Hdr->MinorSubsystemVersion);
440 W.printNumber("SizeOfImage", Hdr->SizeOfImage);
441 W.printNumber("SizeOfHeaders", Hdr->SizeOfHeaders);
442 W.printEnum ("Subsystem", Hdr->Subsystem, makeArrayRef(PEWindowsSubsystem));
443 W.printFlags ("Characteristics", Hdr->DLLCharacteristics,
444 makeArrayRef(PEDLLCharacteristics));
445 W.printNumber("SizeOfStackReserve", Hdr->SizeOfStackReserve);
446 W.printNumber("SizeOfStackCommit", Hdr->SizeOfStackCommit);
447 W.printNumber("SizeOfHeapReserve", Hdr->SizeOfHeapReserve);
448 W.printNumber("SizeOfHeapCommit", Hdr->SizeOfHeapCommit);
449 W.printNumber("NumberOfRvaAndSize", Hdr->NumberOfRvaAndSize);
450
451 if (Hdr->NumberOfRvaAndSize > 0) {
452 DictScope D(W, "DataDirectory");
453 static const char * const directory[] = {
454 "ExportTable", "ImportTable", "ResourceTable", "ExceptionTable",
455 "CertificateTable", "BaseRelocationTable", "Debug", "Architecture",
456 "GlobalPtr", "TLSTable", "LoadConfigTable", "BoundImport", "IAT",
457 "DelayImportDescriptor", "CLRRuntimeHeader", "Reserved"
458 };
459
460 for (uint32_t i = 0; i < Hdr->NumberOfRvaAndSize; ++i) {
461 printDataDirectory(i, directory[i]);
462 }
463 }
464 }
465
466 void COFFDumper::printBaseOfDataField(const pe32_header *Hdr) {
467 W.printHex("BaseOfData", Hdr->BaseOfData);
468 }
469
470 void COFFDumper::printBaseOfDataField(const pe32plus_header *) {}
471
472 void COFFDumper::printCodeViewLineTables(const SectionRef &Section) {
473 StringRef Data;
474 if (error(Section.getContents(Data)))
475 return;
476
477 SmallVector<StringRef, 10> FunctionNames;
478 StringMap<StringRef> FunctionLineTables;
479
480 ListScope D(W, "CodeViewLineTables");
481 {
482 // FIXME: Add more offset correctness checks.
483 DataExtractor DE(Data, true, 4);
484 uint32_t Offset = 0,
485 Magic = DE.getU32(&Offset);
486 W.printHex("Magic", Magic);
487 if (Magic != COFF::DEBUG_SECTION_MAGIC) {
488 error(object_error::parse_failed);
489 return;
490 }
491
492 bool Finished = false;
493 while (DE.isValidOffset(Offset) && !Finished) {
494 // The section consists of a number of subsection in the following format:
495 // |Type|PayloadSize|Payload...|
496 uint32_t SubSectionType = DE.getU32(&Offset),
497 PayloadSize = DE.getU32(&Offset);
498 ListScope S(W, "Subsection");
499 W.printHex("Type", SubSectionType);
500 W.printHex("PayloadSize", PayloadSize);
501 if (PayloadSize > Data.size() - Offset) {
502 error(object_error::parse_failed);
503 return;
504 }
505
506 // Print the raw contents to simplify debugging if anything goes wrong
507 // afterwards.
508 StringRef Contents = Data.substr(Offset, PayloadSize);
509 W.printBinaryBlock("Contents", Contents);
510
511 switch (SubSectionType) {
512 case COFF::DEBUG_SYMBOL_SUBSECTION:
513 printCodeViewSymbolsSubsection(Contents, Section, Offset);
514 break;
515 case COFF::DEBUG_LINE_TABLE_SUBSECTION: {
516 // Holds a PC to file:line table. Some data to parse this subsection is
517 // stored in the other subsections, so just check sanity and store the
518 // pointers for deferred processing.
519
520 if (PayloadSize < 12) {
521 // There should be at least three words to store two function
522 // relocations and size of the code.
523 error(object_error::parse_failed);
524 return;
525 }
526
527 StringRef FunctionName;
528 if (error(resolveSymbolName(Obj->getCOFFSection(Section), Offset,
529 FunctionName)))
530 return;
531 W.printString("FunctionName", FunctionName);
532 if (FunctionLineTables.count(FunctionName) != 0) {
533 // Saw debug info for this function already?
534 error(object_error::parse_failed);
535 return;
536 }
537
538 FunctionLineTables[FunctionName] = Contents;
539 FunctionNames.push_back(FunctionName);
540 break;
541 }
542 case COFF::DEBUG_STRING_TABLE_SUBSECTION:
543 if (PayloadSize == 0 || CVStringTable.data() != nullptr ||
544 Contents.back() != '\0') {
545 // Empty or duplicate or non-null-terminated subsection.
546 error(object_error::parse_failed);
547 return;
548 }
549 CVStringTable = Contents;
550 break;
551 case COFF::DEBUG_INDEX_SUBSECTION:
552 // Holds the translation table from file indices
553 // to offsets in the string table.
554
555 if (PayloadSize == 0 ||
556 CVFileIndexToStringOffsetTable.data() != nullptr) {
557 // Empty or duplicate subsection.
558 error(object_error::parse_failed);
559 return;
560 }
561 CVFileIndexToStringOffsetTable = Contents;
562 break;
563 }
564 Offset += PayloadSize;
565
566 // Align the reading pointer by 4.
567 Offset += (-Offset) % 4;
568 }
569 }
570
571 // Dump the line tables now that we've read all the subsections and know all
572 // the required information.
573 for (unsigned I = 0, E = FunctionNames.size(); I != E; ++I) {
574 StringRef Name = FunctionNames[I];
575 ListScope S(W, "FunctionLineTable");
576 W.printString("FunctionName", Name);
577
578 DataExtractor DE(FunctionLineTables[Name], true, 4);
579 uint32_t Offset = 8; // Skip relocations.
580 uint32_t FunctionSize = DE.getU32(&Offset);
581 W.printHex("CodeSize", FunctionSize);
582 while (DE.isValidOffset(Offset)) {
583 // For each range of lines with the same filename, we have a segment
584 // in the line table. The filename string is accessed using double
585 // indirection to the string table subsection using the index subsection.
586 uint32_t OffsetInIndex = DE.getU32(&Offset),
587 SegmentLength = DE.getU32(&Offset),
588 FullSegmentSize = DE.getU32(&Offset);
589 if (FullSegmentSize != 12 + 8 * SegmentLength) {
590 error(object_error::parse_failed);
591 return;
592 }
593
594 uint32_t FilenameOffset;
595 {
596 DataExtractor SDE(CVFileIndexToStringOffsetTable, true, 4);
597 uint32_t OffsetInSDE = OffsetInIndex;
598 if (!SDE.isValidOffset(OffsetInSDE)) {
599 error(object_error::parse_failed);
600 return;
601 }
602 FilenameOffset = SDE.getU32(&OffsetInSDE);
603 }
604
605 if (FilenameOffset == 0 || FilenameOffset + 1 >= CVStringTable.size() ||
606 CVStringTable.data()[FilenameOffset - 1] != '\0') {
607 // Each string in an F3 subsection should be preceded by a null
608 // character.
609 error(object_error::parse_failed);
610 return;
611 }
612
613 StringRef Filename(CVStringTable.data() + FilenameOffset);
614 ListScope S(W, "FilenameSegment");
615 W.printString("Filename", Filename);
616 for (unsigned J = 0; J != SegmentLength && DE.isValidOffset(Offset);
617 ++J) {
618 // Then go the (PC, LineNumber) pairs. The line number is stored in the
619 // least significant 31 bits of the respective word in the table.
620 uint32_t PC = DE.getU32(&Offset),
621 LineNumber = DE.getU32(&Offset) & 0x7fffffff;
622 if (PC >= FunctionSize) {
623 error(object_error::parse_failed);
624 return;
625 }
626 char Buffer[32];
627 format("+0x%X", PC).snprint(Buffer, 32);
628 W.printNumber(Buffer, LineNumber);
629 }
630 }
631 }
632 }
633
634 void COFFDumper::printCodeViewSymbolsSubsection(StringRef Subsection,
635 const SectionRef &Section,
636 uint32_t OffsetInSection) {
637 if (Subsection.size() == 0) {
638 error(object_error::parse_failed);
639 return;
640 }
641 DataExtractor DE(Subsection, true, 4);
642 uint32_t Offset = 0;
643
644 // Function-level subsections have "procedure start" and "procedure end"
645 // commands that should come in pairs and surround relevant info.
646 bool InFunctionScope = false;
647 while (DE.isValidOffset(Offset)) {
648 // Read subsection segments one by one.
649 uint16_t Size = DE.getU16(&Offset);
650 // The section size includes the size of the type identifier.
651 if (Size < 2 || !DE.isValidOffsetForDataOfSize(Offset, Size)) {
652 error(object_error::parse_failed);
653 return;
654 }
655 Size -= 2;
656 uint16_t Type = DE.getU16(&Offset);
657 switch (Type) {
658 case COFF::DEBUG_SYMBOL_TYPE_PROC_START: {
659 DictScope S(W, "ProcStart");
660 if (InFunctionScope || Size < 36) {
661 error(object_error::parse_failed);
662 return;
663 }
664 InFunctionScope = true;
665
666 // We're currently interested in a limited subset of fields in this
667 // segment, just ignore the rest of the fields for now.
668 uint8_t Unused[12];
669 DE.getU8(&Offset, Unused, 12);
670 uint32_t CodeSize = DE.getU32(&Offset);
671 DE.getU8(&Offset, Unused, 12);
672 StringRef SectionName;
673 if (error(resolveSymbolName(Obj->getCOFFSection(Section),
674 OffsetInSection + Offset, SectionName)))
675 return;
676 Offset += 4;
677 DE.getU8(&Offset, Unused, 3);
678 StringRef DisplayName = DE.getCStr(&Offset);
679 if (!DE.isValidOffset(Offset)) {
680 error(object_error::parse_failed);
681 return;
682 }
683 W.printString("DisplayName", DisplayName);
684 W.printString("Section", SectionName);
685 W.printHex("CodeSize", CodeSize);
686
687 break;
688 }
689 case COFF::DEBUG_SYMBOL_TYPE_PROC_END: {
690 W.startLine() << "ProcEnd\n";
691 if (!InFunctionScope || Size > 0) {
692 error(object_error::parse_failed);
693 return;
694 }
695 InFunctionScope = false;
696 break;
697 }
698 default:
699 Offset += Size;
700 break;
701 }
702 }
703
704 if (InFunctionScope)
705 error(object_error::parse_failed);
706 }
707
708 void COFFDumper::printSections() {
709 ListScope SectionsD(W, "Sections");
710 int SectionNumber = 0;
711 for (const SectionRef &Sec : Obj->sections()) {
712 ++SectionNumber;
713 const coff_section *Section = Obj->getCOFFSection(Sec);
714
715 StringRef Name;
716 if (error(Sec.getName(Name)))
717 Name = "";
718
719 DictScope D(W, "Section");
720 W.printNumber("Number", SectionNumber);
721 W.printBinary("Name", Name, Section->Name);
722 W.printHex ("VirtualSize", Section->VirtualSize);
723 W.printHex ("VirtualAddress", Section->VirtualAddress);
724 W.printNumber("RawDataSize", Section->SizeOfRawData);
725 W.printHex ("PointerToRawData", Section->PointerToRawData);
726 W.printHex ("PointerToRelocations", Section->PointerToRelocations);
727 W.printHex ("PointerToLineNumbers", Section->PointerToLinenumbers);
728 W.printNumber("RelocationCount", Section->NumberOfRelocations);
729 W.printNumber("LineNumberCount", Section->NumberOfLinenumbers);
730 W.printFlags ("Characteristics", Section->Characteristics,
731 makeArrayRef(ImageSectionCharacteristics),
732 COFF::SectionCharacteristics(0x00F00000));
733
734 if (opts::SectionRelocations) {
735 ListScope D(W, "Relocations");
736 for (const RelocationRef &Reloc : Sec.relocations())
737 printRelocation(Sec, Reloc);
738 }
739
740 if (opts::SectionSymbols) {
741 ListScope D(W, "Symbols");
742 for (const SymbolRef &Symbol : Obj->symbols()) {
743 if (!Sec.containsSymbol(Symbol))
744 continue;
745
746 printSymbol(Symbol);
747 }
748 }
749
750 if (Name == ".debug$S" && opts::CodeViewLineTables)
751 printCodeViewLineTables(Sec);
752
753 if (opts::SectionData &&
754 !(Section->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)) {
755 StringRef Data;
756 if (error(Sec.getContents(Data)))
757 break;
758
759 W.printBinaryBlock("SectionData", Data);
760 }
761 }
762 }
763
764 void COFFDumper::printRelocations() {
765 ListScope D(W, "Relocations");
766
767 int SectionNumber = 0;
768 for (const SectionRef &Section : Obj->sections()) {
769 ++SectionNumber;
770 StringRef Name;
771 if (error(Section.getName(Name)))
772 continue;
773
774 bool PrintedGroup = false;
775 for (const RelocationRef &Reloc : Section.relocations()) {
776 if (!PrintedGroup) {
777 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
778 W.indent();
779 PrintedGroup = true;
780 }
781
782 printRelocation(Section, Reloc);
783 }
784
785 if (PrintedGroup) {
786 W.unindent();
787 W.startLine() << "}\n";
788 }
789 }
790 }
791
792 void COFFDumper::printRelocation(const SectionRef &Section,
793 const RelocationRef &Reloc) {
794 uint64_t Offset;
795 uint64_t RelocType;
796 SmallString<32> RelocName;
797 StringRef SymbolName;
798 if (error(Reloc.getOffset(Offset)))
799 return;
800 if (error(Reloc.getType(RelocType)))
801 return;
802 if (error(Reloc.getTypeName(RelocName)))
803 return;
804 symbol_iterator Symbol = Reloc.getSymbol();
805 if (Symbol != Obj->symbol_end() && error(Symbol->getName(SymbolName)))
806 return;
807
808 if (opts::ExpandRelocs) {
809 DictScope Group(W, "Relocation");
810 W.printHex("Offset", Offset);
811 W.printNumber("Type", RelocName, RelocType);
812 W.printString("Symbol", SymbolName.empty() ? "-" : SymbolName);
813 } else {
814 raw_ostream& OS = W.startLine();
815 OS << W.hex(Offset)
816 << " " << RelocName
817 << " " << (SymbolName.empty() ? "-" : SymbolName)
818 << "\n";
819 }
820 }
821
822 void COFFDumper::printSymbols() {
823 ListScope Group(W, "Symbols");
824
825 for (const SymbolRef &Symbol : Obj->symbols())
826 printSymbol(Symbol);
827 }
828
829 void COFFDumper::printDynamicSymbols() { ListScope Group(W, "DynamicSymbols"); }
830
831 static ErrorOr<StringRef>
832 getSectionName(const llvm::object::COFFObjectFile *Obj, int32_t SectionNumber,
833 const coff_section *Section) {
834 if (Section) {
835 StringRef SectionName;
836 if (std::error_code EC = Obj->getSectionName(Section, SectionName))
837 return EC;
838 return SectionName;
839 }
840 if (SectionNumber == llvm::COFF::IMAGE_SYM_DEBUG)
841 return StringRef("IMAGE_SYM_DEBUG");
842 if (SectionNumber == llvm::COFF::IMAGE_SYM_ABSOLUTE)
843 return StringRef("IMAGE_SYM_ABSOLUTE");
844 if (SectionNumber == llvm::COFF::IMAGE_SYM_UNDEFINED)
845 return StringRef("IMAGE_SYM_UNDEFINED");
846 return StringRef("");
847 }
848
849 void COFFDumper::printSymbol(const SymbolRef &Sym) {
850 DictScope D(W, "Symbol");
851
852 COFFSymbolRef Symbol = Obj->getCOFFSymbol(Sym);
853 const coff_section *Section;
854 if (std::error_code EC = Obj->getSection(Symbol.getSectionNumber(), Section)) {
855 W.startLine() << "Invalid section number: " << EC.message() << "\n";
856 W.flush();
857 return;
858 }
859
860 StringRef SymbolName;
861 if (Obj->getSymbolName(Symbol, SymbolName))
862 SymbolName = "";
863
864 StringRef SectionName = "";
865 ErrorOr<StringRef> Res =
866 getSectionName(Obj, Symbol.getSectionNumber(), Section);
867 if (Res)
868 SectionName = *Res;
869
870 W.printString("Name", SymbolName);
871 W.printNumber("Value", Symbol.getValue());
872 W.printNumber("Section", SectionName, Symbol.getSectionNumber());
873 W.printEnum ("BaseType", Symbol.getBaseType(), makeArrayRef(ImageSymType));
874 W.printEnum ("ComplexType", Symbol.getComplexType(),
875 makeArrayRef(ImageSymDType));
876 W.printEnum ("StorageClass", Symbol.getStorageClass(),
877 makeArrayRef(ImageSymClass));
878 W.printNumber("AuxSymbolCount", Symbol.getNumberOfAuxSymbols());
879
880 for (uint8_t I = 0; I < Symbol.getNumberOfAuxSymbols(); ++I) {
881 if (Symbol.isFunctionDefinition()) {
882 const coff_aux_function_definition *Aux;
883 if (error(getSymbolAuxData(Obj, Symbol, I, Aux)))
884 break;
885
886 DictScope AS(W, "AuxFunctionDef");
887 W.printNumber("TagIndex", Aux->TagIndex);
888 W.printNumber("TotalSize", Aux->TotalSize);
889 W.printHex("PointerToLineNumber", Aux->PointerToLinenumber);
890 W.printHex("PointerToNextFunction", Aux->PointerToNextFunction);
891
892 } else if (Symbol.isAnyUndefined()) {
893 const coff_aux_weak_external *Aux;
894 if (error(getSymbolAuxData(Obj, Symbol, I, Aux)))
895 break;
896
897 ErrorOr<COFFSymbolRef> Linked = Obj->getSymbol(Aux->TagIndex);
898 StringRef LinkedName;
899 std::error_code EC = Linked.getError();
900 if (EC || (EC = Obj->getSymbolName(*Linked, LinkedName))) {
901 LinkedName = "";
902 error(EC);
903 }
904
905 DictScope AS(W, "AuxWeakExternal");
906 W.printNumber("Linked", LinkedName, Aux->TagIndex);
907 W.printEnum ("Search", Aux->Characteristics,
908 makeArrayRef(WeakExternalCharacteristics));
909
910 } else if (Symbol.isFileRecord()) {
911 const char *FileName;
912 if (error(getSymbolAuxData(Obj, Symbol, I, FileName)))
913 break;
914
915 DictScope AS(W, "AuxFileRecord");
916
917 StringRef Name(FileName, Symbol.getNumberOfAuxSymbols() *
918 Obj->getSymbolTableEntrySize());
919 W.printString("FileName", Name.rtrim(StringRef("\0", 1)));
920 break;
921 } else if (Symbol.isSectionDefinition()) {
922 const coff_aux_section_definition *Aux;
923 if (error(getSymbolAuxData(Obj, Symbol, I, Aux)))
924 break;
925
926 int32_t AuxNumber = Aux->getNumber(Symbol.isBigObj());
927
928 DictScope AS(W, "AuxSectionDef");
929 W.printNumber("Length", Aux->Length);
930 W.printNumber("RelocationCount", Aux->NumberOfRelocations);
931 W.printNumber("LineNumberCount", Aux->NumberOfLinenumbers);
932 W.printHex("Checksum", Aux->CheckSum);
933 W.printNumber("Number", AuxNumber);
934 W.printEnum("Selection", Aux->Selection, makeArrayRef(ImageCOMDATSelect));
935
936 if (Section && Section->Characteristics & COFF::IMAGE_SCN_LNK_COMDAT
937 && Aux->Selection == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) {
938 const coff_section *Assoc;
939 StringRef AssocName = "";
940 std::error_code EC = Obj->getSection(AuxNumber, Assoc);
941 ErrorOr<StringRef> Res = getSectionName(Obj, AuxNumber, Assoc);
942 if (Res)
943 AssocName = *Res;
944 if (!EC)
945 EC = Res.getError();
946 if (EC) {
947 AssocName = "";
948 error(EC);
949 }
950
951 W.printNumber("AssocSection", AssocName, AuxNumber);
952 }
953 } else if (Symbol.isCLRToken()) {
954 const coff_aux_clr_token *Aux;
955 if (error(getSymbolAuxData(Obj, Symbol, I, Aux)))
956 break;
957
958 ErrorOr<COFFSymbolRef> ReferredSym =
959 Obj->getSymbol(Aux->SymbolTableIndex);
960 StringRef ReferredName;
961 std::error_code EC = ReferredSym.getError();
962 if (EC || (EC = Obj->getSymbolName(*ReferredSym, ReferredName))) {
963 ReferredName = "";
964 error(EC);
965 }
966
967 DictScope AS(W, "AuxCLRToken");
968 W.printNumber("AuxType", Aux->AuxType);
969 W.printNumber("Reserved", Aux->Reserved);
970 W.printNumber("SymbolTableIndex", ReferredName, Aux->SymbolTableIndex);
971
972 } else {
973 W.startLine() << "<unhandled auxiliary record>\n";
974 }
975 }
976 }
977
978 void COFFDumper::printUnwindInfo() {
979 ListScope D(W, "UnwindInformation");
980 switch (Obj->getMachine()) {
981 case COFF::IMAGE_FILE_MACHINE_AMD64: {
982 Win64EH::Dumper Dumper(W);
983 Win64EH::Dumper::SymbolResolver
984 Resolver = [](const object::coff_section *Section, uint64_t Offset,
985 SymbolRef &Symbol, void *user_data) -> std::error_code {
986 COFFDumper *Dumper = reinterpret_cast<COFFDumper *>(user_data);
987 return Dumper->resolveSymbol(Section, Offset, Symbol);
988 };
989 Win64EH::Dumper::Context Ctx(*Obj, Resolver, this);
990 Dumper.printData(Ctx);
991 break;
992 }
993 case COFF::IMAGE_FILE_MACHINE_ARMNT: {
994 ARM::WinEH::Decoder Decoder(W);
995 Decoder.dumpProcedureData(*Obj);
996 break;
997 }
998 default:
999 W.printEnum("unsupported Image Machine", Obj->getMachine(),
1000 makeArrayRef(ImageFileMachineType));
1001 break;
1002 }
1003 }
1004
1005 void COFFDumper::printImportedSymbols(
1006 iterator_range<imported_symbol_iterator> Range) {
1007 for (const ImportedSymbolRef &I : Range) {
1008 StringRef Sym;
1009 if (error(I.getSymbolName(Sym))) return;
1010 uint16_t Ordinal;
1011 if (error(I.getOrdinal(Ordinal))) return;
1012 W.printNumber("Symbol", Sym, Ordinal);
1013 }
1014 }
1015
1016 void COFFDumper::printDelayImportedSymbols(
1017 const DelayImportDirectoryEntryRef &I,
1018 iterator_range<imported_symbol_iterator> Range) {
1019 int Index = 0;
1020 for (const ImportedSymbolRef &S : Range) {
1021 DictScope Import(W, "Import");
1022 StringRef Sym;
1023 if (error(S.getSymbolName(Sym))) return;
1024 uint16_t Ordinal;
1025 if (error(S.getOrdinal(Ordinal))) return;
1026 W.printNumber("Symbol", Sym, Ordinal);
1027 uint64_t Addr;
1028 if (error(I.getImportAddress(Index++, Addr))) return;
1029 W.printHex("Address", Addr);
1030 }
1031 }
1032
1033 void COFFDumper::printCOFFImports() {
1034 // Regular imports
1035 for (const ImportDirectoryEntryRef &I : Obj->import_directories()) {
1036 DictScope Import(W, "Import");
1037 StringRef Name;
1038 if (error(I.getName(Name))) return;
1039 W.printString("Name", Name);
1040 uint32_t Addr;
1041 if (error(I.getImportLookupTableRVA(Addr))) return;
1042 W.printHex("ImportLookupTableRVA", Addr);
1043 if (error(I.getImportAddressTableRVA(Addr))) return;
1044 W.printHex("ImportAddressTableRVA", Addr);
1045 printImportedSymbols(I.imported_symbols());
1046 }
1047
1048 // Delay imports
1049 for (const DelayImportDirectoryEntryRef &I : Obj->delay_import_directories()) {
1050 DictScope Import(W, "DelayImport");
1051 StringRef Name;
1052 if (error(I.getName(Name))) return;
1053 W.printString("Name", Name);
1054 const delay_import_directory_table_entry *Table;
1055 if (error(I.getDelayImportTable(Table))) return;
1056 W.printHex("Attributes", Table->Attributes);
1057 W.printHex("ModuleHandle", Table->ModuleHandle);
1058 W.printHex("ImportAddressTable", Table->DelayImportAddressTable);
1059 W.printHex("ImportNameTable", Table->DelayImportNameTable);
1060 W.printHex("BoundDelayImportTable", Table->BoundDelayImportTable);
1061 W.printHex("UnloadDelayImportTable", Table->UnloadDelayImportTable);
1062 printDelayImportedSymbols(I, I.imported_symbols());
1063 }
1064 }
1065
1066 void COFFDumper::printCOFFExports() {
1067 for (const ExportDirectoryEntryRef &E : Obj->export_directories()) {
1068 DictScope Export(W, "Export");
1069
1070 StringRef Name;
1071 uint32_t Ordinal, RVA;
1072
1073 if (error(E.getSymbolName(Name)))
1074 continue;
1075 if (error(E.getOrdinal(Ordinal)))
1076 continue;
1077 if (error(E.getExportRVA(RVA)))
1078 continue;
1079
1080 W.printNumber("Ordinal", Ordinal);
1081 W.printString("Name", Name);
1082 W.printHex("RVA", RVA);
1083 }
1084 }
1085
1086 void COFFDumper::printCOFFDirectives() {
1087 for (const SectionRef &Section : Obj->sections()) {
1088 StringRef Contents;
1089 StringRef Name;
1090
1091 if (error(Section.getName(Name)))
1092 continue;
1093 if (Name != ".drectve")
1094 continue;
1095
1096 if (error(Section.getContents(Contents)))
1097 return;
1098
1099 W.printString("Directive(s)", Contents);
1100 }
1101 }
1102
1103 static StringRef getBaseRelocTypeName(uint8_t Type) {
1104 switch (Type) {
1105 case COFF::IMAGE_REL_BASED_ABSOLUTE: return "ABSOLUTE";
1106 case COFF::IMAGE_REL_BASED_HIGH: return "HIGH";
1107 case COFF::IMAGE_REL_BASED_LOW: return "LOW";
1108 case COFF::IMAGE_REL_BASED_HIGHLOW: return "HIGHLOW";
1109 case COFF::IMAGE_REL_BASED_HIGHADJ: return "HIGHADJ";
1110 case COFF::IMAGE_REL_BASED_DIR64: return "DIR64";
1111 default: return "unknown (" + llvm::utostr(Type) + ")";
1112 }
1113 }
1114
1115 void COFFDumper::printCOFFBaseReloc() {
1116 ListScope D(W, "BaseReloc");
1117 for (const BaseRelocRef &I : Obj->base_relocs()) {
1118 uint8_t Type;
1119 uint32_t RVA;
1120 if (error(I.getRVA(RVA)))
1121 continue;
1122 if (error(I.getType(Type)))
1123 continue;
1124 DictScope Import(W, "Entry");
1125 W.printString("Type", getBaseRelocTypeName(Type));
1126 W.printHex("Address", RVA);
1127 }
1128 }
backport for Debian buster