[InstCombine] Signed saturation patterns
[llvm-core.git] / tools / llvm-cxxdump / llvm-cxxdump.cpp
blob03e1bab9417e1de2b678d5e8ee367f13d2269649
1 //===- llvm-cxxdump.cpp - Dump C++ data in an Object File -------*- C++ -*-===//
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 // Dumps C++ data resident in object files and archives.
11 //===----------------------------------------------------------------------===//
13 #include "llvm-cxxdump.h"
14 #include "Error.h"
15 #include "llvm/ADT/ArrayRef.h"
16 #include "llvm/Object/Archive.h"
17 #include "llvm/Object/ObjectFile.h"
18 #include "llvm/Object/SymbolSize.h"
19 #include "llvm/Support/Debug.h"
20 #include "llvm/Support/Endian.h"
21 #include "llvm/Support/FileSystem.h"
22 #include "llvm/Support/InitLLVM.h"
23 #include "llvm/Support/TargetRegistry.h"
24 #include "llvm/Support/TargetSelect.h"
25 #include "llvm/Support/WithColor.h"
26 #include "llvm/Support/raw_ostream.h"
27 #include <map>
28 #include <string>
29 #include <system_error>
31 using namespace llvm;
32 using namespace llvm::object;
33 using namespace llvm::support;
35 namespace opts {
36 cl::list<std::string> InputFilenames(cl::Positional,
37 cl::desc("<input object files>"),
38 cl::ZeroOrMore);
39 } // namespace opts
41 namespace llvm {
43 static void error(std::error_code EC) {
44 if (!EC)
45 return;
46 WithColor::error(outs(), "") << "reading file: " << EC.message() << ".\n";
47 outs().flush();
48 exit(1);
51 LLVM_ATTRIBUTE_NORETURN static void error(Error Err) {
52 logAllUnhandledErrors(std::move(Err), WithColor::error(outs()),
53 "reading file: ");
54 outs().flush();
55 exit(1);
58 template <typename T>
59 T unwrapOrError(Expected<T> EO) {
60 if (!EO)
61 error(EO.takeError());
62 return std::move(*EO);
65 } // namespace llvm
67 static void reportError(StringRef Input, StringRef Message) {
68 if (Input == "-")
69 Input = "<stdin>";
70 WithColor::error(errs(), Input) << Message << "\n";
71 errs().flush();
72 exit(1);
75 static void reportError(StringRef Input, std::error_code EC) {
76 reportError(Input, EC.message());
79 static std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap;
81 static void collectRelocatedSymbols(const ObjectFile *Obj,
82 const SectionRef &Sec, uint64_t SecAddress,
83 uint64_t SymAddress, uint64_t SymSize,
84 StringRef *I, StringRef *E) {
85 uint64_t SymOffset = SymAddress - SecAddress;
86 uint64_t SymEnd = SymOffset + SymSize;
87 for (const SectionRef &SR : SectionRelocMap[Sec]) {
88 for (const object::RelocationRef &Reloc : SR.relocations()) {
89 if (I == E)
90 break;
91 const object::symbol_iterator RelocSymI = Reloc.getSymbol();
92 if (RelocSymI == Obj->symbol_end())
93 continue;
94 Expected<StringRef> RelocSymName = RelocSymI->getName();
95 error(errorToErrorCode(RelocSymName.takeError()));
96 uint64_t Offset = Reloc.getOffset();
97 if (Offset >= SymOffset && Offset < SymEnd) {
98 *I = *RelocSymName;
99 ++I;
105 static void collectRelocationOffsets(
106 const ObjectFile *Obj, const SectionRef &Sec, uint64_t SecAddress,
107 uint64_t SymAddress, uint64_t SymSize, StringRef SymName,
108 std::map<std::pair<StringRef, uint64_t>, StringRef> &Collection) {
109 uint64_t SymOffset = SymAddress - SecAddress;
110 uint64_t SymEnd = SymOffset + SymSize;
111 for (const SectionRef &SR : SectionRelocMap[Sec]) {
112 for (const object::RelocationRef &Reloc : SR.relocations()) {
113 const object::symbol_iterator RelocSymI = Reloc.getSymbol();
114 if (RelocSymI == Obj->symbol_end())
115 continue;
116 Expected<StringRef> RelocSymName = RelocSymI->getName();
117 error(errorToErrorCode(RelocSymName.takeError()));
118 uint64_t Offset = Reloc.getOffset();
119 if (Offset >= SymOffset && Offset < SymEnd)
120 Collection[std::make_pair(SymName, Offset - SymOffset)] = *RelocSymName;
125 static void dumpCXXData(const ObjectFile *Obj) {
126 struct CompleteObjectLocator {
127 StringRef Symbols[2];
128 ArrayRef<little32_t> Data;
130 struct ClassHierarchyDescriptor {
131 StringRef Symbols[1];
132 ArrayRef<little32_t> Data;
134 struct BaseClassDescriptor {
135 StringRef Symbols[2];
136 ArrayRef<little32_t> Data;
138 struct TypeDescriptor {
139 StringRef Symbols[1];
140 uint64_t AlwaysZero;
141 StringRef MangledName;
143 struct ThrowInfo {
144 uint32_t Flags;
146 struct CatchableTypeArray {
147 uint32_t NumEntries;
149 struct CatchableType {
150 uint32_t Flags;
151 uint32_t NonVirtualBaseAdjustmentOffset;
152 int32_t VirtualBasePointerOffset;
153 uint32_t VirtualBaseAdjustmentOffset;
154 uint32_t Size;
155 StringRef Symbols[2];
157 std::map<std::pair<StringRef, uint64_t>, StringRef> VFTableEntries;
158 std::map<std::pair<StringRef, uint64_t>, StringRef> TIEntries;
159 std::map<std::pair<StringRef, uint64_t>, StringRef> CTAEntries;
160 std::map<StringRef, ArrayRef<little32_t>> VBTables;
161 std::map<StringRef, CompleteObjectLocator> COLs;
162 std::map<StringRef, ClassHierarchyDescriptor> CHDs;
163 std::map<std::pair<StringRef, uint64_t>, StringRef> BCAEntries;
164 std::map<StringRef, BaseClassDescriptor> BCDs;
165 std::map<StringRef, TypeDescriptor> TDs;
166 std::map<StringRef, ThrowInfo> TIs;
167 std::map<StringRef, CatchableTypeArray> CTAs;
168 std::map<StringRef, CatchableType> CTs;
170 std::map<std::pair<StringRef, uint64_t>, StringRef> VTableSymEntries;
171 std::map<std::pair<StringRef, uint64_t>, int64_t> VTableDataEntries;
172 std::map<std::pair<StringRef, uint64_t>, StringRef> VTTEntries;
173 std::map<StringRef, StringRef> TINames;
175 SectionRelocMap.clear();
176 for (const SectionRef &Section : Obj->sections()) {
177 Expected<section_iterator> ErrOrSec = Section.getRelocatedSection();
178 if (!ErrOrSec)
179 error(ErrOrSec.takeError());
181 section_iterator Sec2 = *ErrOrSec;
182 if (Sec2 != Obj->section_end())
183 SectionRelocMap[*Sec2].push_back(Section);
186 uint8_t BytesInAddress = Obj->getBytesInAddress();
188 std::vector<std::pair<SymbolRef, uint64_t>> SymAddr =
189 object::computeSymbolSizes(*Obj);
191 for (auto &P : SymAddr) {
192 object::SymbolRef Sym = P.first;
193 uint64_t SymSize = P.second;
194 Expected<StringRef> SymNameOrErr = Sym.getName();
195 error(errorToErrorCode(SymNameOrErr.takeError()));
196 StringRef SymName = *SymNameOrErr;
197 Expected<object::section_iterator> SecIOrErr = Sym.getSection();
198 error(errorToErrorCode(SecIOrErr.takeError()));
199 object::section_iterator SecI = *SecIOrErr;
200 // Skip external symbols.
201 if (SecI == Obj->section_end())
202 continue;
203 const SectionRef &Sec = *SecI;
204 // Skip virtual or BSS sections.
205 if (Sec.isBSS() || Sec.isVirtual())
206 continue;
207 StringRef SecContents = unwrapOrError(Sec.getContents());
208 Expected<uint64_t> SymAddressOrErr = Sym.getAddress();
209 error(errorToErrorCode(SymAddressOrErr.takeError()));
210 uint64_t SymAddress = *SymAddressOrErr;
211 uint64_t SecAddress = Sec.getAddress();
212 uint64_t SecSize = Sec.getSize();
213 uint64_t SymOffset = SymAddress - SecAddress;
214 StringRef SymContents = SecContents.substr(SymOffset, SymSize);
216 // VFTables in the MS-ABI start with '??_7' and are contained within their
217 // own COMDAT section. We then determine the contents of the VFTable by
218 // looking at each relocation in the section.
219 if (SymName.startswith("??_7")) {
220 // Each relocation either names a virtual method or a thunk. We note the
221 // offset into the section and the symbol used for the relocation.
222 collectRelocationOffsets(Obj, Sec, SecAddress, SecAddress, SecSize,
223 SymName, VFTableEntries);
225 // VBTables in the MS-ABI start with '??_8' and are filled with 32-bit
226 // offsets of virtual bases.
227 else if (SymName.startswith("??_8")) {
228 ArrayRef<little32_t> VBTableData(
229 reinterpret_cast<const little32_t *>(SymContents.data()),
230 SymContents.size() / sizeof(little32_t));
231 VBTables[SymName] = VBTableData;
233 // Complete object locators in the MS-ABI start with '??_R4'
234 else if (SymName.startswith("??_R4")) {
235 CompleteObjectLocator COL;
236 COL.Data = makeArrayRef(
237 reinterpret_cast<const little32_t *>(SymContents.data()), 3);
238 StringRef *I = std::begin(COL.Symbols), *E = std::end(COL.Symbols);
239 collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
240 COLs[SymName] = COL;
242 // Class hierarchy descriptors in the MS-ABI start with '??_R3'
243 else if (SymName.startswith("??_R3")) {
244 ClassHierarchyDescriptor CHD;
245 CHD.Data = makeArrayRef(
246 reinterpret_cast<const little32_t *>(SymContents.data()), 3);
247 StringRef *I = std::begin(CHD.Symbols), *E = std::end(CHD.Symbols);
248 collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
249 CHDs[SymName] = CHD;
251 // Class hierarchy descriptors in the MS-ABI start with '??_R2'
252 else if (SymName.startswith("??_R2")) {
253 // Each relocation names a base class descriptor. We note the offset into
254 // the section and the symbol used for the relocation.
255 collectRelocationOffsets(Obj, Sec, SecAddress, SymAddress, SymSize,
256 SymName, BCAEntries);
258 // Base class descriptors in the MS-ABI start with '??_R1'
259 else if (SymName.startswith("??_R1")) {
260 BaseClassDescriptor BCD;
261 BCD.Data = makeArrayRef(
262 reinterpret_cast<const little32_t *>(SymContents.data()) + 1, 5);
263 StringRef *I = std::begin(BCD.Symbols), *E = std::end(BCD.Symbols);
264 collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
265 BCDs[SymName] = BCD;
267 // Type descriptors in the MS-ABI start with '??_R0'
268 else if (SymName.startswith("??_R0")) {
269 const char *DataPtr = SymContents.drop_front(BytesInAddress).data();
270 TypeDescriptor TD;
271 if (BytesInAddress == 8)
272 TD.AlwaysZero = *reinterpret_cast<const little64_t *>(DataPtr);
273 else
274 TD.AlwaysZero = *reinterpret_cast<const little32_t *>(DataPtr);
275 TD.MangledName = SymContents.drop_front(BytesInAddress * 2);
276 StringRef *I = std::begin(TD.Symbols), *E = std::end(TD.Symbols);
277 collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
278 TDs[SymName] = TD;
280 // Throw descriptors in the MS-ABI start with '_TI'
281 else if (SymName.startswith("_TI") || SymName.startswith("__TI")) {
282 ThrowInfo TI;
283 TI.Flags = *reinterpret_cast<const little32_t *>(SymContents.data());
284 collectRelocationOffsets(Obj, Sec, SecAddress, SymAddress, SymSize,
285 SymName, TIEntries);
286 TIs[SymName] = TI;
288 // Catchable type arrays in the MS-ABI start with _CTA or __CTA.
289 else if (SymName.startswith("_CTA") || SymName.startswith("__CTA")) {
290 CatchableTypeArray CTA;
291 CTA.NumEntries =
292 *reinterpret_cast<const little32_t *>(SymContents.data());
293 collectRelocationOffsets(Obj, Sec, SecAddress, SymAddress, SymSize,
294 SymName, CTAEntries);
295 CTAs[SymName] = CTA;
297 // Catchable types in the MS-ABI start with _CT or __CT.
298 else if (SymName.startswith("_CT") || SymName.startswith("__CT")) {
299 const little32_t *DataPtr =
300 reinterpret_cast<const little32_t *>(SymContents.data());
301 CatchableType CT;
302 CT.Flags = DataPtr[0];
303 CT.NonVirtualBaseAdjustmentOffset = DataPtr[2];
304 CT.VirtualBasePointerOffset = DataPtr[3];
305 CT.VirtualBaseAdjustmentOffset = DataPtr[4];
306 CT.Size = DataPtr[5];
307 StringRef *I = std::begin(CT.Symbols), *E = std::end(CT.Symbols);
308 collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
309 CTs[SymName] = CT;
311 // Construction vtables in the Itanium ABI start with '_ZTT' or '__ZTT'.
312 else if (SymName.startswith("_ZTT") || SymName.startswith("__ZTT")) {
313 collectRelocationOffsets(Obj, Sec, SecAddress, SymAddress, SymSize,
314 SymName, VTTEntries);
316 // Typeinfo names in the Itanium ABI start with '_ZTS' or '__ZTS'.
317 else if (SymName.startswith("_ZTS") || SymName.startswith("__ZTS")) {
318 TINames[SymName] = SymContents.slice(0, SymContents.find('\0'));
320 // Vtables in the Itanium ABI start with '_ZTV' or '__ZTV'.
321 else if (SymName.startswith("_ZTV") || SymName.startswith("__ZTV")) {
322 collectRelocationOffsets(Obj, Sec, SecAddress, SymAddress, SymSize,
323 SymName, VTableSymEntries);
324 for (uint64_t SymOffI = 0; SymOffI < SymSize; SymOffI += BytesInAddress) {
325 auto Key = std::make_pair(SymName, SymOffI);
326 if (VTableSymEntries.count(Key))
327 continue;
328 const char *DataPtr =
329 SymContents.substr(SymOffI, BytesInAddress).data();
330 int64_t VData;
331 if (BytesInAddress == 8)
332 VData = *reinterpret_cast<const little64_t *>(DataPtr);
333 else
334 VData = *reinterpret_cast<const little32_t *>(DataPtr);
335 VTableDataEntries[Key] = VData;
338 // Typeinfo structures in the Itanium ABI start with '_ZTI' or '__ZTI'.
339 else if (SymName.startswith("_ZTI") || SymName.startswith("__ZTI")) {
340 // FIXME: Do something with these!
343 for (const auto &VFTableEntry : VFTableEntries) {
344 StringRef VFTableName = VFTableEntry.first.first;
345 uint64_t Offset = VFTableEntry.first.second;
346 StringRef SymName = VFTableEntry.second;
347 outs() << VFTableName << '[' << Offset << "]: " << SymName << '\n';
349 for (const auto &VBTable : VBTables) {
350 StringRef VBTableName = VBTable.first;
351 uint32_t Idx = 0;
352 for (little32_t Offset : VBTable.second) {
353 outs() << VBTableName << '[' << Idx << "]: " << Offset << '\n';
354 Idx += sizeof(Offset);
357 for (const auto &COLPair : COLs) {
358 StringRef COLName = COLPair.first;
359 const CompleteObjectLocator &COL = COLPair.second;
360 outs() << COLName << "[IsImageRelative]: " << COL.Data[0] << '\n';
361 outs() << COLName << "[OffsetToTop]: " << COL.Data[1] << '\n';
362 outs() << COLName << "[VFPtrOffset]: " << COL.Data[2] << '\n';
363 outs() << COLName << "[TypeDescriptor]: " << COL.Symbols[0] << '\n';
364 outs() << COLName << "[ClassHierarchyDescriptor]: " << COL.Symbols[1]
365 << '\n';
367 for (const auto &CHDPair : CHDs) {
368 StringRef CHDName = CHDPair.first;
369 const ClassHierarchyDescriptor &CHD = CHDPair.second;
370 outs() << CHDName << "[AlwaysZero]: " << CHD.Data[0] << '\n';
371 outs() << CHDName << "[Flags]: " << CHD.Data[1] << '\n';
372 outs() << CHDName << "[NumClasses]: " << CHD.Data[2] << '\n';
373 outs() << CHDName << "[BaseClassArray]: " << CHD.Symbols[0] << '\n';
375 for (const auto &BCAEntry : BCAEntries) {
376 StringRef BCAName = BCAEntry.first.first;
377 uint64_t Offset = BCAEntry.first.second;
378 StringRef SymName = BCAEntry.second;
379 outs() << BCAName << '[' << Offset << "]: " << SymName << '\n';
381 for (const auto &BCDPair : BCDs) {
382 StringRef BCDName = BCDPair.first;
383 const BaseClassDescriptor &BCD = BCDPair.second;
384 outs() << BCDName << "[TypeDescriptor]: " << BCD.Symbols[0] << '\n';
385 outs() << BCDName << "[NumBases]: " << BCD.Data[0] << '\n';
386 outs() << BCDName << "[OffsetInVBase]: " << BCD.Data[1] << '\n';
387 outs() << BCDName << "[VBPtrOffset]: " << BCD.Data[2] << '\n';
388 outs() << BCDName << "[OffsetInVBTable]: " << BCD.Data[3] << '\n';
389 outs() << BCDName << "[Flags]: " << BCD.Data[4] << '\n';
390 outs() << BCDName << "[ClassHierarchyDescriptor]: " << BCD.Symbols[1]
391 << '\n';
393 for (const auto &TDPair : TDs) {
394 StringRef TDName = TDPair.first;
395 const TypeDescriptor &TD = TDPair.second;
396 outs() << TDName << "[VFPtr]: " << TD.Symbols[0] << '\n';
397 outs() << TDName << "[AlwaysZero]: " << TD.AlwaysZero << '\n';
398 outs() << TDName << "[MangledName]: ";
399 outs().write_escaped(TD.MangledName.rtrim(StringRef("\0", 1)),
400 /*UseHexEscapes=*/true)
401 << '\n';
403 for (const auto &TIPair : TIs) {
404 StringRef TIName = TIPair.first;
405 const ThrowInfo &TI = TIPair.second;
406 auto dumpThrowInfoFlag = [&](const char *Name, uint32_t Flag) {
407 outs() << TIName << "[Flags." << Name
408 << "]: " << (TI.Flags & Flag ? "true" : "false") << '\n';
410 auto dumpThrowInfoSymbol = [&](const char *Name, int Offset) {
411 outs() << TIName << '[' << Name << "]: ";
412 auto Entry = TIEntries.find(std::make_pair(TIName, Offset));
413 outs() << (Entry == TIEntries.end() ? "null" : Entry->second) << '\n';
415 outs() << TIName << "[Flags]: " << TI.Flags << '\n';
416 dumpThrowInfoFlag("Const", 1);
417 dumpThrowInfoFlag("Volatile", 2);
418 dumpThrowInfoSymbol("CleanupFn", 4);
419 dumpThrowInfoSymbol("ForwardCompat", 8);
420 dumpThrowInfoSymbol("CatchableTypeArray", 12);
422 for (const auto &CTAPair : CTAs) {
423 StringRef CTAName = CTAPair.first;
424 const CatchableTypeArray &CTA = CTAPair.second;
426 outs() << CTAName << "[NumEntries]: " << CTA.NumEntries << '\n';
428 unsigned Idx = 0;
429 for (auto I = CTAEntries.lower_bound(std::make_pair(CTAName, 0)),
430 E = CTAEntries.upper_bound(std::make_pair(CTAName, UINT64_MAX));
431 I != E; ++I)
432 outs() << CTAName << '[' << Idx++ << "]: " << I->second << '\n';
434 for (const auto &CTPair : CTs) {
435 StringRef CTName = CTPair.first;
436 const CatchableType &CT = CTPair.second;
437 auto dumpCatchableTypeFlag = [&](const char *Name, uint32_t Flag) {
438 outs() << CTName << "[Flags." << Name
439 << "]: " << (CT.Flags & Flag ? "true" : "false") << '\n';
441 outs() << CTName << "[Flags]: " << CT.Flags << '\n';
442 dumpCatchableTypeFlag("ScalarType", 1);
443 dumpCatchableTypeFlag("VirtualInheritance", 4);
444 outs() << CTName << "[TypeDescriptor]: " << CT.Symbols[0] << '\n';
445 outs() << CTName << "[NonVirtualBaseAdjustmentOffset]: "
446 << CT.NonVirtualBaseAdjustmentOffset << '\n';
447 outs() << CTName
448 << "[VirtualBasePointerOffset]: " << CT.VirtualBasePointerOffset
449 << '\n';
450 outs() << CTName << "[VirtualBaseAdjustmentOffset]: "
451 << CT.VirtualBaseAdjustmentOffset << '\n';
452 outs() << CTName << "[Size]: " << CT.Size << '\n';
453 outs() << CTName
454 << "[CopyCtor]: " << (CT.Symbols[1].empty() ? "null" : CT.Symbols[1])
455 << '\n';
457 for (const auto &VTTPair : VTTEntries) {
458 StringRef VTTName = VTTPair.first.first;
459 uint64_t VTTOffset = VTTPair.first.second;
460 StringRef VTTEntry = VTTPair.second;
461 outs() << VTTName << '[' << VTTOffset << "]: " << VTTEntry << '\n';
463 for (const auto &TIPair : TINames) {
464 StringRef TIName = TIPair.first;
465 outs() << TIName << ": " << TIPair.second << '\n';
467 auto VTableSymI = VTableSymEntries.begin();
468 auto VTableSymE = VTableSymEntries.end();
469 auto VTableDataI = VTableDataEntries.begin();
470 auto VTableDataE = VTableDataEntries.end();
471 for (;;) {
472 bool SymDone = VTableSymI == VTableSymE;
473 bool DataDone = VTableDataI == VTableDataE;
474 if (SymDone && DataDone)
475 break;
476 if (!SymDone && (DataDone || VTableSymI->first < VTableDataI->first)) {
477 StringRef VTableName = VTableSymI->first.first;
478 uint64_t Offset = VTableSymI->first.second;
479 StringRef VTableEntry = VTableSymI->second;
480 outs() << VTableName << '[' << Offset << "]: ";
481 outs() << VTableEntry;
482 outs() << '\n';
483 ++VTableSymI;
484 continue;
486 if (!DataDone && (SymDone || VTableDataI->first < VTableSymI->first)) {
487 StringRef VTableName = VTableDataI->first.first;
488 uint64_t Offset = VTableDataI->first.second;
489 int64_t VTableEntry = VTableDataI->second;
490 outs() << VTableName << '[' << Offset << "]: ";
491 outs() << VTableEntry;
492 outs() << '\n';
493 ++VTableDataI;
494 continue;
499 static void dumpArchive(const Archive *Arc) {
500 Error Err = Error::success();
501 for (auto &ArcC : Arc->children(Err)) {
502 Expected<std::unique_ptr<Binary>> ChildOrErr = ArcC.getAsBinary();
503 if (!ChildOrErr) {
504 // Ignore non-object files.
505 if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) {
506 std::string Buf;
507 raw_string_ostream OS(Buf);
508 logAllUnhandledErrors(std::move(E), OS);
509 OS.flush();
510 reportError(Arc->getFileName(), Buf);
512 consumeError(ChildOrErr.takeError());
513 continue;
516 if (ObjectFile *Obj = dyn_cast<ObjectFile>(&*ChildOrErr.get()))
517 dumpCXXData(Obj);
518 else
519 reportError(Arc->getFileName(), cxxdump_error::unrecognized_file_format);
521 if (Err)
522 error(std::move(Err));
525 static void dumpInput(StringRef File) {
526 // Attempt to open the binary.
527 Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(File);
528 if (!BinaryOrErr) {
529 auto EC = errorToErrorCode(BinaryOrErr.takeError());
530 reportError(File, EC);
531 return;
533 Binary &Binary = *BinaryOrErr.get().getBinary();
535 if (Archive *Arc = dyn_cast<Archive>(&Binary))
536 dumpArchive(Arc);
537 else if (ObjectFile *Obj = dyn_cast<ObjectFile>(&Binary))
538 dumpCXXData(Obj);
539 else
540 reportError(File, cxxdump_error::unrecognized_file_format);
543 int main(int argc, const char *argv[]) {
544 InitLLVM X(argc, argv);
546 // Initialize targets.
547 llvm::InitializeAllTargetInfos();
549 // Register the target printer for --version.
550 cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
552 cl::ParseCommandLineOptions(argc, argv, "LLVM C++ ABI Data Dumper\n");
554 // Default to stdin if no filename is specified.
555 if (opts::InputFilenames.size() == 0)
556 opts::InputFilenames.push_back("-");
558 llvm::for_each(opts::InputFilenames, dumpInput);
560 return EXIT_SUCCESS;