llvm-pdbutil.cpp revision 319780 
1//===- llvm-pdbutil.cpp - Dump debug info from a PDB file -------*- 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// Dumps debug information present in PDB files.
11//
12//===----------------------------------------------------------------------===//
13
14#include "llvm-pdbutil.h"
15
16#include "Analyze.h"
17#include "Diff.h"
18#include "LLVMOutputStyle.h"
19#include "LinePrinter.h"
20#include "OutputStyle.h"
21#include "PrettyCompilandDumper.h"
22#include "PrettyExternalSymbolDumper.h"
23#include "PrettyFunctionDumper.h"
24#include "PrettyTypeDumper.h"
25#include "PrettyVariableDumper.h"
26#include "YAMLOutputStyle.h"
27
28#include "llvm/ADT/ArrayRef.h"
29#include "llvm/ADT/BitVector.h"
30#include "llvm/ADT/DenseMap.h"
31#include "llvm/ADT/STLExtras.h"
32#include "llvm/ADT/StringExtras.h"
33#include "llvm/Config/config.h"
34#include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h"
35#include "llvm/DebugInfo/CodeView/DebugInlineeLinesSubsection.h"
36#include "llvm/DebugInfo/CodeView/DebugLinesSubsection.h"
37#include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
38#include "llvm/DebugInfo/CodeView/TypeStreamMerger.h"
39#include "llvm/DebugInfo/CodeView/TypeTableBuilder.h"
40#include "llvm/DebugInfo/MSF/MSFBuilder.h"
41#include "llvm/DebugInfo/PDB/GenericError.h"
42#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
43#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
44#include "llvm/DebugInfo/PDB/IPDBSession.h"
45#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h"
46#include "llvm/DebugInfo/PDB/Native/DbiStream.h"
47#include "llvm/DebugInfo/PDB/Native/DbiStreamBuilder.h"
48#include "llvm/DebugInfo/PDB/Native/InfoStream.h"
49#include "llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h"
50#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
51#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
52#include "llvm/DebugInfo/PDB/Native/PDBFileBuilder.h"
53#include "llvm/DebugInfo/PDB/Native/PDBStringTableBuilder.h"
54#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
55#include "llvm/DebugInfo/PDB/Native/RawError.h"
56#include "llvm/DebugInfo/PDB/Native/TpiStream.h"
57#include "llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h"
58#include "llvm/DebugInfo/PDB/PDB.h"
59#include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
60#include "llvm/DebugInfo/PDB/PDBSymbolData.h"
61#include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
62#include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
63#include "llvm/DebugInfo/PDB/PDBSymbolThunk.h"
64#include "llvm/Support/BinaryByteStream.h"
65#include "llvm/Support/COM.h"
66#include "llvm/Support/CommandLine.h"
67#include "llvm/Support/ConvertUTF.h"
68#include "llvm/Support/FileOutputBuffer.h"
69#include "llvm/Support/FileSystem.h"
70#include "llvm/Support/Format.h"
71#include "llvm/Support/ManagedStatic.h"
72#include "llvm/Support/MemoryBuffer.h"
73#include "llvm/Support/Path.h"
74#include "llvm/Support/PrettyStackTrace.h"
75#include "llvm/Support/Process.h"
76#include "llvm/Support/Regex.h"
77#include "llvm/Support/ScopedPrinter.h"
78#include "llvm/Support/Signals.h"
79#include "llvm/Support/raw_ostream.h"
80
81using namespace llvm;
82using namespace llvm::codeview;
83using namespace llvm::msf;
84using namespace llvm::pdb;
85
86namespace opts {
87
88cl::SubCommand RawSubcommand("raw", "Dump raw structure of the PDB file");
89cl::SubCommand
90    PrettySubcommand("pretty",
91                     "Dump semantic information about types and symbols");
92
93cl::SubCommand DiffSubcommand("diff", "Diff the contents of 2 PDB files");
94
95cl::SubCommand
96    YamlToPdbSubcommand("yaml2pdb",
97                        "Generate a PDB file from a YAML description");
98cl::SubCommand
99    PdbToYamlSubcommand("pdb2yaml",
100                        "Generate a detailed YAML description of a PDB File");
101
102cl::SubCommand
103    AnalyzeSubcommand("analyze",
104                      "Analyze various aspects of a PDB's structure");
105
106cl::SubCommand MergeSubcommand("merge",
107                               "Merge multiple PDBs into a single PDB");
108
109cl::OptionCategory TypeCategory("Symbol Type Options");
110cl::OptionCategory FilterCategory("Filtering and Sorting Options");
111cl::OptionCategory OtherOptions("Other Options");
112
113namespace pretty {
114cl::list<std::string> InputFilenames(cl::Positional,
115                                     cl::desc("<input PDB files>"),
116                                     cl::OneOrMore, cl::sub(PrettySubcommand));
117
118cl::opt<bool> Compilands("compilands", cl::desc("Display compilands"),
119                         cl::cat(TypeCategory), cl::sub(PrettySubcommand));
120cl::opt<bool> Symbols("module-syms",
121                      cl::desc("Display symbols for each compiland"),
122                      cl::cat(TypeCategory), cl::sub(PrettySubcommand));
123cl::opt<bool> Globals("globals", cl::desc("Dump global symbols"),
124                      cl::cat(TypeCategory), cl::sub(PrettySubcommand));
125cl::opt<bool> Externals("externals", cl::desc("Dump external symbols"),
126                        cl::cat(TypeCategory), cl::sub(PrettySubcommand));
127cl::list<SymLevel> SymTypes(
128    "sym-types", cl::desc("Type of symbols to dump (default all)"),
129    cl::cat(TypeCategory), cl::sub(PrettySubcommand), cl::ZeroOrMore,
130    cl::values(
131        clEnumValN(SymLevel::Thunks, "thunks", "Display thunk symbols"),
132        clEnumValN(SymLevel::Data, "data", "Display data symbols"),
133        clEnumValN(SymLevel::Functions, "funcs", "Display function symbols"),
134        clEnumValN(SymLevel::All, "all", "Display all symbols (default)")));
135
136cl::opt<bool>
137    Types("types",
138          cl::desc("Display all types (implies -classes, -enums, -typedefs)"),
139          cl::cat(TypeCategory), cl::sub(PrettySubcommand));
140cl::opt<bool> Classes("classes", cl::desc("Display class types"),
141                      cl::cat(TypeCategory), cl::sub(PrettySubcommand));
142cl::opt<bool> Enums("enums", cl::desc("Display enum types"),
143                    cl::cat(TypeCategory), cl::sub(PrettySubcommand));
144cl::opt<bool> Typedefs("typedefs", cl::desc("Display typedef types"),
145                       cl::cat(TypeCategory), cl::sub(PrettySubcommand));
146cl::opt<SymbolSortMode> SymbolOrder(
147    "symbol-order", cl::desc("symbol sort order"),
148    cl::init(SymbolSortMode::None),
149    cl::values(clEnumValN(SymbolSortMode::None, "none",
150                          "Undefined / no particular sort order"),
151               clEnumValN(SymbolSortMode::Name, "name", "Sort symbols by name"),
152               clEnumValN(SymbolSortMode::Size, "size",
153                          "Sort symbols by size")),
154    cl::cat(TypeCategory), cl::sub(PrettySubcommand));
155
156cl::opt<ClassSortMode> ClassOrder(
157    "class-order", cl::desc("Class sort order"), cl::init(ClassSortMode::None),
158    cl::values(
159        clEnumValN(ClassSortMode::None, "none",
160                   "Undefined / no particular sort order"),
161        clEnumValN(ClassSortMode::Name, "name", "Sort classes by name"),
162        clEnumValN(ClassSortMode::Size, "size", "Sort classes by size"),
163        clEnumValN(ClassSortMode::Padding, "padding",
164                   "Sort classes by amount of padding"),
165        clEnumValN(ClassSortMode::PaddingPct, "padding-pct",
166                   "Sort classes by percentage of space consumed by padding"),
167        clEnumValN(ClassSortMode::PaddingImmediate, "padding-imm",
168                   "Sort classes by amount of immediate padding"),
169        clEnumValN(ClassSortMode::PaddingPctImmediate, "padding-pct-imm",
170                   "Sort classes by percentage of space consumed by immediate "
171                   "padding")),
172    cl::cat(TypeCategory), cl::sub(PrettySubcommand));
173
174cl::opt<ClassDefinitionFormat> ClassFormat(
175    "class-definitions", cl::desc("Class definition format"),
176    cl::init(ClassDefinitionFormat::All),
177    cl::values(
178        clEnumValN(ClassDefinitionFormat::All, "all",
179                   "Display all class members including data, constants, "
180                   "typedefs, functions, etc"),
181        clEnumValN(ClassDefinitionFormat::Layout, "layout",
182                   "Only display members that contribute to class size."),
183        clEnumValN(ClassDefinitionFormat::None, "none",
184                   "Don't display class definitions")),
185    cl::cat(TypeCategory), cl::sub(PrettySubcommand));
186cl::opt<uint32_t> ClassRecursionDepth(
187    "class-recurse-depth", cl::desc("Class recursion depth (0=no limit)"),
188    cl::init(0), cl::cat(TypeCategory), cl::sub(PrettySubcommand));
189
190cl::opt<bool> Lines("lines", cl::desc("Line tables"), cl::cat(TypeCategory),
191                    cl::sub(PrettySubcommand));
192cl::opt<bool>
193    All("all", cl::desc("Implies all other options in 'Symbol Types' category"),
194        cl::cat(TypeCategory), cl::sub(PrettySubcommand));
195
196cl::opt<uint64_t> LoadAddress(
197    "load-address",
198    cl::desc("Assume the module is loaded at the specified address"),
199    cl::cat(OtherOptions), cl::sub(PrettySubcommand));
200cl::opt<bool> Native("native", cl::desc("Use native PDB reader instead of DIA"),
201                     cl::cat(OtherOptions), cl::sub(PrettySubcommand));
202cl::opt<cl::boolOrDefault>
203    ColorOutput("color-output",
204                cl::desc("Override use of color (default = isatty)"),
205                cl::cat(OtherOptions), cl::sub(PrettySubcommand));
206cl::list<std::string> ExcludeTypes(
207    "exclude-types", cl::desc("Exclude types by regular expression"),
208    cl::ZeroOrMore, cl::cat(FilterCategory), cl::sub(PrettySubcommand));
209cl::list<std::string> ExcludeSymbols(
210    "exclude-symbols", cl::desc("Exclude symbols by regular expression"),
211    cl::ZeroOrMore, cl::cat(FilterCategory), cl::sub(PrettySubcommand));
212cl::list<std::string> ExcludeCompilands(
213    "exclude-compilands", cl::desc("Exclude compilands by regular expression"),
214    cl::ZeroOrMore, cl::cat(FilterCategory), cl::sub(PrettySubcommand));
215
216cl::list<std::string> IncludeTypes(
217    "include-types",
218    cl::desc("Include only types which match a regular expression"),
219    cl::ZeroOrMore, cl::cat(FilterCategory), cl::sub(PrettySubcommand));
220cl::list<std::string> IncludeSymbols(
221    "include-symbols",
222    cl::desc("Include only symbols which match a regular expression"),
223    cl::ZeroOrMore, cl::cat(FilterCategory), cl::sub(PrettySubcommand));
224cl::list<std::string> IncludeCompilands(
225    "include-compilands",
226    cl::desc("Include only compilands those which match a regular expression"),
227    cl::ZeroOrMore, cl::cat(FilterCategory), cl::sub(PrettySubcommand));
228cl::opt<uint32_t> SizeThreshold(
229    "min-type-size", cl::desc("Displays only those types which are greater "
230                              "than or equal to the specified size."),
231    cl::init(0), cl::cat(FilterCategory), cl::sub(PrettySubcommand));
232cl::opt<uint32_t> PaddingThreshold(
233    "min-class-padding", cl::desc("Displays only those classes which have at "
234                                  "least the specified amount of padding."),
235    cl::init(0), cl::cat(FilterCategory), cl::sub(PrettySubcommand));
236cl::opt<uint32_t> ImmediatePaddingThreshold(
237    "min-class-padding-imm",
238    cl::desc("Displays only those classes which have at least the specified "
239             "amount of immediate padding, ignoring padding internal to bases "
240             "and aggregates."),
241    cl::init(0), cl::cat(FilterCategory), cl::sub(PrettySubcommand));
242
243cl::opt<bool> ExcludeCompilerGenerated(
244    "no-compiler-generated",
245    cl::desc("Don't show compiler generated types and symbols"),
246    cl::cat(FilterCategory), cl::sub(PrettySubcommand));
247cl::opt<bool>
248    ExcludeSystemLibraries("no-system-libs",
249                           cl::desc("Don't show symbols from system libraries"),
250                           cl::cat(FilterCategory), cl::sub(PrettySubcommand));
251
252cl::opt<bool> NoEnumDefs("no-enum-definitions",
253                         cl::desc("Don't display full enum definitions"),
254                         cl::cat(FilterCategory), cl::sub(PrettySubcommand));
255}
256
257namespace diff {
258cl::opt<bool> Pedantic("pedantic",
259                       cl::desc("Finds all differences (even structural ones "
260                                "that produce otherwise identical PDBs)"),
261                       cl::sub(DiffSubcommand));
262
263cl::list<std::string> InputFilenames(cl::Positional,
264                                     cl::desc("<first> <second>"),
265                                     cl::OneOrMore, cl::sub(DiffSubcommand));
266}
267
268namespace raw {
269
270cl::OptionCategory MsfOptions("MSF Container Options");
271cl::OptionCategory TypeOptions("Type Record Options");
272cl::OptionCategory SymbolOptions("Symbol Options");
273cl::OptionCategory MiscOptions("Miscellaneous Options");
274
275// MSF OPTIONS
276cl::opt<bool> DumpHeaders("headers", cl::desc("dump PDB headers"),
277                          cl::cat(MsfOptions), cl::sub(RawSubcommand));
278cl::opt<bool> DumpStreamBlocks("stream-blocks",
279                               cl::desc("dump PDB stream blocks"),
280                               cl::cat(MsfOptions), cl::sub(RawSubcommand));
281cl::opt<bool> DumpStreamSummary("stream-summary",
282                                cl::desc("dump summary of the PDB streams"),
283                                cl::cat(MsfOptions), cl::sub(RawSubcommand));
284cl::opt<bool> DumpPageStats(
285    "page-stats",
286    cl::desc("dump allocation stats of the pages in the MSF file"),
287    cl::cat(MsfOptions), cl::sub(RawSubcommand));
288cl::opt<std::string>
289    DumpBlockRangeOpt("block-data", cl::value_desc("start[-end]"),
290                      cl::desc("Dump binary data from specified range."),
291                      cl::cat(MsfOptions), cl::sub(RawSubcommand));
292llvm::Optional<BlockRange> DumpBlockRange;
293
294cl::list<std::string>
295    DumpStreamData("stream-data", cl::CommaSeparated, cl::ZeroOrMore,
296                   cl::desc("Dump binary data from specified streams.  Format "
297                            "is SN[:Start][@Size]"),
298                   cl::cat(MsfOptions), cl::sub(RawSubcommand));
299
300// TYPE OPTIONS
301cl::opt<bool>
302    CompactRecords("compact-records",
303                   cl::desc("Dump type and symbol records with less detail"),
304                   cl::cat(TypeOptions), cl::sub(RawSubcommand));
305
306cl::opt<bool>
307    DumpTpiRecords("tpi-records",
308                   cl::desc("dump CodeView type records from TPI stream"),
309                   cl::cat(TypeOptions), cl::sub(RawSubcommand));
310cl::opt<bool> DumpTpiRecordBytes(
311    "tpi-record-bytes",
312    cl::desc("dump CodeView type record raw bytes from TPI stream"),
313    cl::cat(TypeOptions), cl::sub(RawSubcommand));
314cl::opt<bool> DumpTpiHash("tpi-hash", cl::desc("dump CodeView TPI hash stream"),
315                          cl::cat(TypeOptions), cl::sub(RawSubcommand));
316cl::opt<bool>
317    DumpIpiRecords("ipi-records",
318                   cl::desc("dump CodeView type records from IPI stream"),
319                   cl::cat(TypeOptions), cl::sub(RawSubcommand));
320cl::opt<bool> DumpIpiRecordBytes(
321    "ipi-record-bytes",
322    cl::desc("dump CodeView type record raw bytes from IPI stream"),
323    cl::cat(TypeOptions), cl::sub(RawSubcommand));
324
325// SYMBOL OPTIONS
326cl::opt<bool> DumpGlobals("globals", cl::desc("dump globals stream data"),
327                          cl::cat(SymbolOptions), cl::sub(RawSubcommand));
328cl::opt<bool> DumpPublics("publics", cl::desc("dump Publics stream data"),
329                          cl::cat(SymbolOptions), cl::sub(RawSubcommand));
330cl::opt<bool>
331    DumpSymRecordBytes("sym-record-bytes",
332                       cl::desc("dump CodeView symbol record raw bytes"),
333                       cl::cat(SymbolOptions), cl::sub(RawSubcommand));
334
335// MISCELLANEOUS OPTIONS
336cl::opt<bool> DumpStringTable("string-table", cl::desc("dump PDB String Table"),
337                              cl::cat(MiscOptions), cl::sub(RawSubcommand));
338
339cl::opt<bool> DumpSectionContribs("section-contribs",
340                                  cl::desc("dump section contributions"),
341                                  cl::cat(MiscOptions), cl::sub(RawSubcommand));
342cl::opt<bool> DumpSectionMap("section-map", cl::desc("dump section map"),
343                             cl::cat(MiscOptions), cl::sub(RawSubcommand));
344cl::opt<bool> DumpSectionHeaders("section-headers",
345                                 cl::desc("dump section headers"),
346                                 cl::cat(MiscOptions), cl::sub(RawSubcommand));
347cl::opt<bool> DumpFpo("fpo", cl::desc("dump FPO records"), cl::cat(MiscOptions),
348                      cl::sub(RawSubcommand));
349
350cl::opt<bool> RawAll("all", cl::desc("Implies most other options."),
351                     cl::cat(MiscOptions), cl::sub(RawSubcommand));
352
353cl::list<std::string> InputFilenames(cl::Positional,
354                                     cl::desc("<input PDB files>"),
355                                     cl::OneOrMore, cl::sub(RawSubcommand));
356}
357
358namespace yaml2pdb {
359cl::opt<std::string>
360    YamlPdbOutputFile("pdb", cl::desc("the name of the PDB file to write"),
361                      cl::sub(YamlToPdbSubcommand));
362
363cl::opt<std::string> InputFilename(cl::Positional,
364                                   cl::desc("<input YAML file>"), cl::Required,
365                                   cl::sub(YamlToPdbSubcommand));
366}
367
368namespace pdb2yaml {
369cl::opt<bool> All("all",
370                  cl::desc("Dump everything we know how to dump."),
371                  cl::sub(PdbToYamlSubcommand), cl::init(false));
372cl::opt<bool> NoFileHeaders("no-file-headers",
373                            cl::desc("Do not dump MSF file headers"),
374                            cl::sub(PdbToYamlSubcommand), cl::init(false));
375cl::opt<bool> Minimal("minimal",
376                      cl::desc("Don't write fields with default values"),
377                      cl::sub(PdbToYamlSubcommand), cl::init(false));
378
379cl::opt<bool> StreamMetadata(
380    "stream-metadata",
381    cl::desc("Dump the number of streams and each stream's size"),
382    cl::sub(PdbToYamlSubcommand), cl::init(false));
383cl::opt<bool> StreamDirectory(
384    "stream-directory",
385    cl::desc("Dump each stream's block map (implies -stream-metadata)"),
386    cl::sub(PdbToYamlSubcommand), cl::init(false));
387cl::opt<bool> PdbStream("pdb-stream",
388                        cl::desc("Dump the PDB Stream (Stream 1)"),
389                        cl::sub(PdbToYamlSubcommand), cl::init(false));
390
391cl::opt<bool> StringTable("string-table", cl::desc("Dump the PDB String Table"),
392                          cl::sub(PdbToYamlSubcommand), cl::init(false));
393
394cl::opt<bool> DbiStream("dbi-stream",
395                        cl::desc("Dump the DBI Stream Headers (Stream 2)"),
396                        cl::sub(PdbToYamlSubcommand), cl::init(false));
397
398cl::opt<bool> TpiStream("tpi-stream",
399                        cl::desc("Dump the TPI Stream (Stream 3)"),
400                        cl::sub(PdbToYamlSubcommand), cl::init(false));
401
402cl::opt<bool> IpiStream("ipi-stream",
403                        cl::desc("Dump the IPI Stream (Stream 5)"),
404                        cl::sub(PdbToYamlSubcommand), cl::init(false));
405
406cl::list<std::string> InputFilename(cl::Positional,
407                                    cl::desc("<input PDB file>"), cl::Required,
408                                    cl::sub(PdbToYamlSubcommand));
409}
410
411namespace shared {
412cl::OptionCategory FileOptions("Module & File Options");
413
414// MODULE & FILE OPTIONS
415cl::opt<bool> DumpModules("modules", cl::desc("dump compiland information"),
416                          cl::cat(FileOptions), cl::sub(RawSubcommand),
417                          cl::sub(PdbToYamlSubcommand));
418cl::opt<bool> DumpModuleFiles("module-files", cl::desc("dump file information"),
419                              cl::cat(FileOptions), cl::sub(RawSubcommand),
420                              cl::sub(PdbToYamlSubcommand));
421cl::list<ModuleSubsection> DumpModuleSubsections(
422    "subsections", cl::ZeroOrMore, cl::CommaSeparated,
423    cl::desc("dump subsections from each module's debug stream"),
424    cl::values(
425        clEnumValN(
426            ModuleSubsection::CrossScopeExports, "cme",
427            "Cross module exports (DEBUG_S_CROSSSCOPEEXPORTS subsection)"),
428        clEnumValN(
429            ModuleSubsection::CrossScopeImports, "cmi",
430            "Cross module imports (DEBUG_S_CROSSSCOPEIMPORTS subsection)"),
431        clEnumValN(ModuleSubsection::FileChecksums, "fc",
432                   "File checksums (DEBUG_S_CHECKSUMS subsection)"),
433        clEnumValN(ModuleSubsection::InlineeLines, "ilines",
434                   "Inlinee lines (DEBUG_S_INLINEELINES subsection)"),
435        clEnumValN(ModuleSubsection::Lines, "lines",
436                   "Lines (DEBUG_S_LINES subsection)"),
437        clEnumValN(ModuleSubsection::StringTable, "strings",
438                   "String Table (DEBUG_S_STRINGTABLE subsection) (not "
439                   "typically present in PDB file)"),
440        clEnumValN(ModuleSubsection::FrameData, "frames",
441                   "Frame Data (DEBUG_S_FRAMEDATA subsection)"),
442        clEnumValN(ModuleSubsection::Symbols, "symbols",
443                   "Symbols (DEBUG_S_SYMBOLS subsection) (not typically "
444                   "present in PDB file)"),
445        clEnumValN(ModuleSubsection::CoffSymbolRVAs, "rvas",
446                   "COFF Symbol RVAs (DEBUG_S_COFF_SYMBOL_RVA subsection)"),
447        clEnumValN(ModuleSubsection::Unknown, "unknown",
448                   "Any subsection not covered by another option"),
449        clEnumValN(ModuleSubsection::All, "all", "All known subsections")),
450    cl::cat(FileOptions), cl::sub(RawSubcommand), cl::sub(PdbToYamlSubcommand));
451cl::opt<bool> DumpModuleSyms("module-syms", cl::desc("dump module symbols"),
452                             cl::cat(FileOptions), cl::sub(RawSubcommand),
453                             cl::sub(PdbToYamlSubcommand));
454} // namespace shared
455
456namespace analyze {
457cl::opt<bool> StringTable("hash-collisions", cl::desc("Find hash collisions"),
458                          cl::sub(AnalyzeSubcommand), cl::init(false));
459cl::list<std::string> InputFilename(cl::Positional,
460                                    cl::desc("<input PDB file>"), cl::Required,
461                                    cl::sub(AnalyzeSubcommand));
462}
463
464namespace merge {
465cl::list<std::string> InputFilenames(cl::Positional,
466                                     cl::desc("<input PDB files>"),
467                                     cl::OneOrMore, cl::sub(MergeSubcommand));
468cl::opt<std::string>
469    PdbOutputFile("pdb", cl::desc("the name of the PDB file to write"),
470                  cl::sub(MergeSubcommand));
471}
472}
473
474static ExitOnError ExitOnErr;
475
476bool opts::checkModuleSubsection(opts::ModuleSubsection MS) {
477  return any_of(opts::shared::DumpModuleSubsections,
478                [=](opts::ModuleSubsection M) {
479                  return M == MS || M == opts::ModuleSubsection::All;
480                });
481}
482
483static void yamlToPdb(StringRef Path) {
484  BumpPtrAllocator Allocator;
485  ErrorOr<std::unique_ptr<MemoryBuffer>> ErrorOrBuffer =
486      MemoryBuffer::getFileOrSTDIN(Path, /*FileSize=*/-1,
487                                   /*RequiresNullTerminator=*/false);
488
489  if (ErrorOrBuffer.getError()) {
490    ExitOnErr(make_error<GenericError>(generic_error_code::invalid_path, Path));
491  }
492
493  std::unique_ptr<MemoryBuffer> &Buffer = ErrorOrBuffer.get();
494
495  llvm::yaml::Input In(Buffer->getBuffer());
496  pdb::yaml::PdbObject YamlObj(Allocator);
497  In >> YamlObj;
498
499  PDBFileBuilder Builder(Allocator);
500
501  uint32_t BlockSize = 4096;
502  if (YamlObj.Headers.hasValue())
503    BlockSize = YamlObj.Headers->SuperBlock.BlockSize;
504  ExitOnErr(Builder.initialize(BlockSize));
505  // Add each of the reserved streams.  We ignore stream metadata in the
506  // yaml, because we will reconstruct our own view of the streams.  For
507  // example, the YAML may say that there were 20 streams in the original
508  // PDB, but maybe we only dump a subset of those 20 streams, so we will
509  // have fewer, and the ones we do have may end up with different indices
510  // than the ones in the original PDB.  So we just start with a clean slate.
511  for (uint32_t I = 0; I < kSpecialStreamCount; ++I)
512    ExitOnErr(Builder.getMsfBuilder().addStream(0));
513
514  if (YamlObj.StringTable.hasValue()) {
515    auto &Strings = Builder.getStringTableBuilder();
516    for (auto S : *YamlObj.StringTable)
517      Strings.insert(S);
518  }
519
520  pdb::yaml::PdbInfoStream DefaultInfoStream;
521  pdb::yaml::PdbDbiStream DefaultDbiStream;
522  pdb::yaml::PdbTpiStream DefaultTpiStream;
523  pdb::yaml::PdbTpiStream DefaultIpiStream;
524
525  const auto &Info = YamlObj.PdbStream.getValueOr(DefaultInfoStream);
526
527  auto &InfoBuilder = Builder.getInfoBuilder();
528  InfoBuilder.setAge(Info.Age);
529  InfoBuilder.setGuid(Info.Guid);
530  InfoBuilder.setSignature(Info.Signature);
531  InfoBuilder.setVersion(Info.Version);
532  for (auto F : Info.Features)
533    InfoBuilder.addFeature(F);
534
535  auto &Strings = Builder.getStringTableBuilder().getStrings();
536
537  const auto &Dbi = YamlObj.DbiStream.getValueOr(DefaultDbiStream);
538  auto &DbiBuilder = Builder.getDbiBuilder();
539  DbiBuilder.setAge(Dbi.Age);
540  DbiBuilder.setBuildNumber(Dbi.BuildNumber);
541  DbiBuilder.setFlags(Dbi.Flags);
542  DbiBuilder.setMachineType(Dbi.MachineType);
543  DbiBuilder.setPdbDllRbld(Dbi.PdbDllRbld);
544  DbiBuilder.setPdbDllVersion(Dbi.PdbDllVersion);
545  DbiBuilder.setVersionHeader(Dbi.VerHeader);
546  for (const auto &MI : Dbi.ModInfos) {
547    auto &ModiBuilder = ExitOnErr(DbiBuilder.addModuleInfo(MI.Mod));
548    ModiBuilder.setObjFileName(MI.Obj);
549
550    for (auto S : MI.SourceFiles)
551      ExitOnErr(DbiBuilder.addModuleSourceFile(MI.Mod, S));
552    if (MI.Modi.hasValue()) {
553      const auto &ModiStream = *MI.Modi;
554      for (auto Symbol : ModiStream.Symbols) {
555        ModiBuilder.addSymbol(
556            Symbol.toCodeViewSymbol(Allocator, CodeViewContainer::Pdb));
557      }
558    }
559
560    auto CodeViewSubsections = ExitOnErr(CodeViewYAML::toCodeViewSubsectionList(
561        Allocator, MI.Subsections, Strings));
562    for (auto &SS : CodeViewSubsections) {
563      ModiBuilder.addDebugSubsection(std::move(SS));
564    }
565  }
566
567  auto &TpiBuilder = Builder.getTpiBuilder();
568  const auto &Tpi = YamlObj.TpiStream.getValueOr(DefaultTpiStream);
569  TpiBuilder.setVersionHeader(Tpi.Version);
570  for (const auto &R : Tpi.Records) {
571    CVType Type = R.toCodeViewRecord(Allocator);
572    TpiBuilder.addTypeRecord(Type.RecordData, None);
573  }
574
575  const auto &Ipi = YamlObj.IpiStream.getValueOr(DefaultIpiStream);
576  auto &IpiBuilder = Builder.getIpiBuilder();
577  IpiBuilder.setVersionHeader(Ipi.Version);
578  for (const auto &R : Ipi.Records) {
579    CVType Type = R.toCodeViewRecord(Allocator);
580    IpiBuilder.addTypeRecord(Type.RecordData, None);
581  }
582
583  ExitOnErr(Builder.commit(opts::yaml2pdb::YamlPdbOutputFile));
584}
585
586static PDBFile &loadPDB(StringRef Path, std::unique_ptr<IPDBSession> &Session) {
587  ExitOnErr(loadDataForPDB(PDB_ReaderType::Native, Path, Session));
588
589  NativeSession *NS = static_cast<NativeSession *>(Session.get());
590  return NS->getPDBFile();
591}
592
593static void pdb2Yaml(StringRef Path) {
594  std::unique_ptr<IPDBSession> Session;
595  auto &File = loadPDB(Path, Session);
596
597  auto O = llvm::make_unique<YAMLOutputStyle>(File);
598  O = llvm::make_unique<YAMLOutputStyle>(File);
599
600  ExitOnErr(O->dump());
601}
602
603static void dumpRaw(StringRef Path) {
604  std::unique_ptr<IPDBSession> Session;
605  auto &File = loadPDB(Path, Session);
606
607  auto O = llvm::make_unique<LLVMOutputStyle>(File);
608
609  ExitOnErr(O->dump());
610}
611
612static void dumpAnalysis(StringRef Path) {
613  std::unique_ptr<IPDBSession> Session;
614  auto &File = loadPDB(Path, Session);
615  auto O = llvm::make_unique<AnalysisStyle>(File);
616
617  ExitOnErr(O->dump());
618}
619
620static void diff(StringRef Path1, StringRef Path2) {
621  std::unique_ptr<IPDBSession> Session1;
622  std::unique_ptr<IPDBSession> Session2;
623
624  auto &File1 = loadPDB(Path1, Session1);
625  auto &File2 = loadPDB(Path2, Session2);
626
627  auto O = llvm::make_unique<DiffStyle>(File1, File2);
628
629  ExitOnErr(O->dump());
630}
631
632bool opts::pretty::shouldDumpSymLevel(SymLevel Search) {
633  if (SymTypes.empty())
634    return true;
635  if (llvm::find(SymTypes, Search) != SymTypes.end())
636    return true;
637  if (llvm::find(SymTypes, SymLevel::All) != SymTypes.end())
638    return true;
639  return false;
640}
641
642uint32_t llvm::pdb::getTypeLength(const PDBSymbolData &Symbol) {
643  auto SymbolType = Symbol.getType();
644  const IPDBRawSymbol &RawType = SymbolType->getRawSymbol();
645
646  return RawType.getLength();
647}
648
649bool opts::pretty::compareFunctionSymbols(
650    const std::unique_ptr<PDBSymbolFunc> &F1,
651    const std::unique_ptr<PDBSymbolFunc> &F2) {
652  assert(opts::pretty::SymbolOrder != opts::pretty::SymbolSortMode::None);
653
654  if (opts::pretty::SymbolOrder == opts::pretty::SymbolSortMode::Name)
655    return F1->getName() < F2->getName();
656
657  // Note that we intentionally sort in descending order on length, since
658  // long functions are more interesting than short functions.
659  return F1->getLength() > F2->getLength();
660}
661
662bool opts::pretty::compareDataSymbols(
663    const std::unique_ptr<PDBSymbolData> &F1,
664    const std::unique_ptr<PDBSymbolData> &F2) {
665  assert(opts::pretty::SymbolOrder != opts::pretty::SymbolSortMode::None);
666
667  if (opts::pretty::SymbolOrder == opts::pretty::SymbolSortMode::Name)
668    return F1->getName() < F2->getName();
669
670  // Note that we intentionally sort in descending order on length, since
671  // large types are more interesting than short ones.
672  return getTypeLength(*F1) > getTypeLength(*F2);
673}
674
675static void dumpPretty(StringRef Path) {
676  std::unique_ptr<IPDBSession> Session;
677
678  const auto ReaderType =
679      opts::pretty::Native ? PDB_ReaderType::Native : PDB_ReaderType::DIA;
680  ExitOnErr(loadDataForPDB(ReaderType, Path, Session));
681
682  if (opts::pretty::LoadAddress)
683    Session->setLoadAddress(opts::pretty::LoadAddress);
684
685  auto &Stream = outs();
686  const bool UseColor = opts::pretty::ColorOutput == cl::BOU_UNSET
687                            ? Stream.has_colors()
688                            : opts::pretty::ColorOutput == cl::BOU_TRUE;
689  LinePrinter Printer(2, UseColor, Stream);
690
691  auto GlobalScope(Session->getGlobalScope());
692  std::string FileName(GlobalScope->getSymbolsFileName());
693
694  WithColor(Printer, PDB_ColorItem::None).get() << "Summary for ";
695  WithColor(Printer, PDB_ColorItem::Path).get() << FileName;
696  Printer.Indent();
697  uint64_t FileSize = 0;
698
699  Printer.NewLine();
700  WithColor(Printer, PDB_ColorItem::Identifier).get() << "Size";
701  if (!sys::fs::file_size(FileName, FileSize)) {
702    Printer << ": " << FileSize << " bytes";
703  } else {
704    Printer << ": (Unable to obtain file size)";
705  }
706
707  Printer.NewLine();
708  WithColor(Printer, PDB_ColorItem::Identifier).get() << "Guid";
709  Printer << ": " << GlobalScope->getGuid();
710
711  Printer.NewLine();
712  WithColor(Printer, PDB_ColorItem::Identifier).get() << "Age";
713  Printer << ": " << GlobalScope->getAge();
714
715  Printer.NewLine();
716  WithColor(Printer, PDB_ColorItem::Identifier).get() << "Attributes";
717  Printer << ": ";
718  if (GlobalScope->hasCTypes())
719    outs() << "HasCTypes ";
720  if (GlobalScope->hasPrivateSymbols())
721    outs() << "HasPrivateSymbols ";
722  Printer.Unindent();
723
724  if (opts::pretty::Compilands) {
725    Printer.NewLine();
726    WithColor(Printer, PDB_ColorItem::SectionHeader).get()
727        << "---COMPILANDS---";
728    Printer.Indent();
729    auto Compilands = GlobalScope->findAllChildren<PDBSymbolCompiland>();
730    CompilandDumper Dumper(Printer);
731    CompilandDumpFlags options = CompilandDumper::Flags::None;
732    if (opts::pretty::Lines)
733      options = options | CompilandDumper::Flags::Lines;
734    while (auto Compiland = Compilands->getNext())
735      Dumper.start(*Compiland, options);
736    Printer.Unindent();
737  }
738
739  if (opts::pretty::Classes || opts::pretty::Enums || opts::pretty::Typedefs) {
740    Printer.NewLine();
741    WithColor(Printer, PDB_ColorItem::SectionHeader).get() << "---TYPES---";
742    Printer.Indent();
743    TypeDumper Dumper(Printer);
744    Dumper.start(*GlobalScope);
745    Printer.Unindent();
746  }
747
748  if (opts::pretty::Symbols) {
749    Printer.NewLine();
750    WithColor(Printer, PDB_ColorItem::SectionHeader).get() << "---SYMBOLS---";
751    Printer.Indent();
752    auto Compilands = GlobalScope->findAllChildren<PDBSymbolCompiland>();
753    CompilandDumper Dumper(Printer);
754    while (auto Compiland = Compilands->getNext())
755      Dumper.start(*Compiland, true);
756    Printer.Unindent();
757  }
758
759  if (opts::pretty::Globals) {
760    Printer.NewLine();
761    WithColor(Printer, PDB_ColorItem::SectionHeader).get() << "---GLOBALS---";
762    Printer.Indent();
763    if (shouldDumpSymLevel(opts::pretty::SymLevel::Functions)) {
764      FunctionDumper Dumper(Printer);
765      auto Functions = GlobalScope->findAllChildren<PDBSymbolFunc>();
766      if (opts::pretty::SymbolOrder == opts::pretty::SymbolSortMode::None) {
767        while (auto Function = Functions->getNext()) {
768          Printer.NewLine();
769          Dumper.start(*Function, FunctionDumper::PointerType::None);
770        }
771      } else {
772        std::vector<std::unique_ptr<PDBSymbolFunc>> Funcs;
773        while (auto Func = Functions->getNext())
774          Funcs.push_back(std::move(Func));
775        std::sort(Funcs.begin(), Funcs.end(),
776                  opts::pretty::compareFunctionSymbols);
777        for (const auto &Func : Funcs) {
778          Printer.NewLine();
779          Dumper.start(*Func, FunctionDumper::PointerType::None);
780        }
781      }
782    }
783    if (shouldDumpSymLevel(opts::pretty::SymLevel::Data)) {
784      auto Vars = GlobalScope->findAllChildren<PDBSymbolData>();
785      VariableDumper Dumper(Printer);
786      if (opts::pretty::SymbolOrder == opts::pretty::SymbolSortMode::None) {
787        while (auto Var = Vars->getNext())
788          Dumper.start(*Var);
789      } else {
790        std::vector<std::unique_ptr<PDBSymbolData>> Datas;
791        while (auto Var = Vars->getNext())
792          Datas.push_back(std::move(Var));
793        std::sort(Datas.begin(), Datas.end(), opts::pretty::compareDataSymbols);
794        for (const auto &Var : Datas)
795          Dumper.start(*Var);
796      }
797    }
798    if (shouldDumpSymLevel(opts::pretty::SymLevel::Thunks)) {
799      auto Thunks = GlobalScope->findAllChildren<PDBSymbolThunk>();
800      CompilandDumper Dumper(Printer);
801      while (auto Thunk = Thunks->getNext())
802        Dumper.dump(*Thunk);
803    }
804    Printer.Unindent();
805  }
806  if (opts::pretty::Externals) {
807    Printer.NewLine();
808    WithColor(Printer, PDB_ColorItem::SectionHeader).get() << "---EXTERNALS---";
809    Printer.Indent();
810    ExternalSymbolDumper Dumper(Printer);
811    Dumper.start(*GlobalScope);
812  }
813  if (opts::pretty::Lines) {
814    Printer.NewLine();
815  }
816  outs().flush();
817}
818
819static void mergePdbs() {
820  BumpPtrAllocator Allocator;
821  TypeTableBuilder MergedTpi(Allocator);
822  TypeTableBuilder MergedIpi(Allocator);
823
824  // Create a Tpi and Ipi type table with all types from all input files.
825  for (const auto &Path : opts::merge::InputFilenames) {
826    std::unique_ptr<IPDBSession> Session;
827    auto &File = loadPDB(Path, Session);
828    SmallVector<TypeIndex, 128> TypeMap;
829    SmallVector<TypeIndex, 128> IdMap;
830    if (File.hasPDBTpiStream()) {
831      auto &Tpi = ExitOnErr(File.getPDBTpiStream());
832      ExitOnErr(codeview::mergeTypeRecords(MergedTpi, TypeMap, nullptr,
833                                           Tpi.typeArray()));
834    }
835    if (File.hasPDBIpiStream()) {
836      auto &Ipi = ExitOnErr(File.getPDBIpiStream());
837      ExitOnErr(codeview::mergeIdRecords(MergedIpi, TypeMap, IdMap,
838                                         Ipi.typeArray()));
839    }
840  }
841
842  // Then write the PDB.
843  PDBFileBuilder Builder(Allocator);
844  ExitOnErr(Builder.initialize(4096));
845  // Add each of the reserved streams.  We might not put any data in them,
846  // but at least they have to be present.
847  for (uint32_t I = 0; I < kSpecialStreamCount; ++I)
848    ExitOnErr(Builder.getMsfBuilder().addStream(0));
849
850  auto &DestTpi = Builder.getTpiBuilder();
851  auto &DestIpi = Builder.getIpiBuilder();
852  MergedTpi.ForEachRecord([&DestTpi](TypeIndex TI, ArrayRef<uint8_t> Data) {
853    DestTpi.addTypeRecord(Data, None);
854  });
855  MergedIpi.ForEachRecord([&DestIpi](TypeIndex TI, ArrayRef<uint8_t> Data) {
856    DestIpi.addTypeRecord(Data, None);
857  });
858
859  SmallString<64> OutFile(opts::merge::PdbOutputFile);
860  if (OutFile.empty()) {
861    OutFile = opts::merge::InputFilenames[0];
862    llvm::sys::path::replace_extension(OutFile, "merged.pdb");
863  }
864  ExitOnErr(Builder.commit(OutFile));
865}
866
867int main(int argc_, const char *argv_[]) {
868  // Print a stack trace if we signal out.
869  sys::PrintStackTraceOnErrorSignal(argv_[0]);
870  PrettyStackTraceProgram X(argc_, argv_);
871
872  ExitOnErr.setBanner("llvm-pdbutil: ");
873
874  SmallVector<const char *, 256> argv;
875  SpecificBumpPtrAllocator<char> ArgAllocator;
876  ExitOnErr(errorCodeToError(sys::Process::GetArgumentVector(
877      argv, makeArrayRef(argv_, argc_), ArgAllocator)));
878
879  llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
880
881  cl::ParseCommandLineOptions(argv.size(), argv.data(), "LLVM PDB Dumper\n");
882  if (!opts::raw::DumpBlockRangeOpt.empty()) {
883    llvm::Regex R("^([0-9]+)(-([0-9]+))?$");
884    llvm::SmallVector<llvm::StringRef, 2> Matches;
885    if (!R.match(opts::raw::DumpBlockRangeOpt, &Matches)) {
886      errs() << "Argument '" << opts::raw::DumpBlockRangeOpt
887             << "' invalid format.\n";
888      errs().flush();
889      exit(1);
890    }
891    opts::raw::DumpBlockRange.emplace();
892    Matches[1].getAsInteger(10, opts::raw::DumpBlockRange->Min);
893    if (!Matches[3].empty()) {
894      opts::raw::DumpBlockRange->Max.emplace();
895      Matches[3].getAsInteger(10, *opts::raw::DumpBlockRange->Max);
896    }
897  }
898
899  if ((opts::RawSubcommand && opts::raw::RawAll) ||
900      (opts::PdbToYamlSubcommand && opts::pdb2yaml::All)) {
901    opts::shared::DumpModules = true;
902    opts::shared::DumpModuleFiles = true;
903    opts::shared::DumpModuleSyms = true;
904    opts::shared::DumpModuleSubsections.push_back(opts::ModuleSubsection::All);
905    if (llvm::is_contained(opts::shared::DumpModuleSubsections,
906                           opts::ModuleSubsection::All)) {
907      opts::shared::DumpModuleSubsections.reset();
908      opts::shared::DumpModuleSubsections.push_back(
909          opts::ModuleSubsection::All);
910    }
911  }
912
913  if (opts::shared::DumpModuleSyms || opts::shared::DumpModuleFiles)
914    opts::shared::DumpModules = true;
915
916  if (opts::shared::DumpModules)
917    opts::pdb2yaml::DbiStream = true;
918
919  if (opts::RawSubcommand) {
920    if (opts::raw::RawAll) {
921      opts::raw::DumpHeaders = true;
922      opts::raw::DumpGlobals = true;
923      opts::raw::DumpPublics = true;
924      opts::raw::DumpSectionHeaders = true;
925      opts::raw::DumpStreamSummary = true;
926      opts::raw::DumpPageStats = true;
927      opts::raw::DumpStreamBlocks = true;
928      opts::raw::DumpTpiRecords = true;
929      opts::raw::DumpTpiHash = true;
930      opts::raw::DumpIpiRecords = true;
931      opts::raw::DumpSectionMap = true;
932      opts::raw::DumpSectionContribs = true;
933      opts::raw::DumpFpo = true;
934      opts::raw::DumpStringTable = true;
935    }
936
937    if (opts::raw::CompactRecords &&
938        (opts::raw::DumpTpiRecordBytes || opts::raw::DumpIpiRecordBytes)) {
939      errs() << "-compact-records is incompatible with -tpi-record-bytes and "
940                "-ipi-record-bytes.\n";
941      exit(1);
942    }
943  }
944  if (opts::PdbToYamlSubcommand) {
945    if (opts::pdb2yaml::All) {
946      opts::pdb2yaml::StreamMetadata = true;
947      opts::pdb2yaml::StreamDirectory = true;
948      opts::pdb2yaml::PdbStream = true;
949      opts::pdb2yaml::StringTable = true;
950      opts::pdb2yaml::DbiStream = true;
951      opts::pdb2yaml::TpiStream = true;
952      opts::pdb2yaml::IpiStream = true;
953    }
954  }
955
956  llvm::sys::InitializeCOMRAII COM(llvm::sys::COMThreadingMode::MultiThreaded);
957
958  if (opts::PdbToYamlSubcommand) {
959    pdb2Yaml(opts::pdb2yaml::InputFilename.front());
960  } else if (opts::YamlToPdbSubcommand) {
961    if (opts::yaml2pdb::YamlPdbOutputFile.empty()) {
962      SmallString<16> OutputFilename(opts::yaml2pdb::InputFilename.getValue());
963      sys::path::replace_extension(OutputFilename, ".pdb");
964      opts::yaml2pdb::YamlPdbOutputFile = OutputFilename.str();
965    }
966    yamlToPdb(opts::yaml2pdb::InputFilename);
967  } else if (opts::AnalyzeSubcommand) {
968    dumpAnalysis(opts::analyze::InputFilename.front());
969  } else if (opts::PrettySubcommand) {
970    if (opts::pretty::Lines)
971      opts::pretty::Compilands = true;
972
973    if (opts::pretty::All) {
974      opts::pretty::Compilands = true;
975      opts::pretty::Symbols = true;
976      opts::pretty::Globals = true;
977      opts::pretty::Types = true;
978      opts::pretty::Externals = true;
979      opts::pretty::Lines = true;
980    }
981
982    if (opts::pretty::Types) {
983      opts::pretty::Classes = true;
984      opts::pretty::Typedefs = true;
985      opts::pretty::Enums = true;
986    }
987
988    // When adding filters for excluded compilands and types, we need to
989    // remember that these are regexes.  So special characters such as * and \
990    // need to be escaped in the regex.  In the case of a literal \, this means
991    // it needs to be escaped again in the C++.  So matching a single \ in the
992    // input requires 4 \es in the C++.
993    if (opts::pretty::ExcludeCompilerGenerated) {
994      opts::pretty::ExcludeTypes.push_back("__vc_attributes");
995      opts::pretty::ExcludeCompilands.push_back("\\* Linker \\*");
996    }
997    if (opts::pretty::ExcludeSystemLibraries) {
998      opts::pretty::ExcludeCompilands.push_back(
999          "f:\\\\binaries\\\\Intermediate\\\\vctools\\\\crt_bld");
1000      opts::pretty::ExcludeCompilands.push_back("f:\\\\dd\\\\vctools\\\\crt");
1001      opts::pretty::ExcludeCompilands.push_back(
1002          "d:\\\\th.obj.x86fre\\\\minkernel");
1003    }
1004    std::for_each(opts::pretty::InputFilenames.begin(),
1005                  opts::pretty::InputFilenames.end(), dumpPretty);
1006  } else if (opts::RawSubcommand) {
1007    std::for_each(opts::raw::InputFilenames.begin(),
1008                  opts::raw::InputFilenames.end(), dumpRaw);
1009  } else if (opts::DiffSubcommand) {
1010    if (opts::diff::InputFilenames.size() != 2) {
1011      errs() << "diff subcommand expects exactly 2 arguments.\n";
1012      exit(1);
1013    }
1014    diff(opts::diff::InputFilenames[0], opts::diff::InputFilenames[1]);
1015  } else if (opts::MergeSubcommand) {
1016    if (opts::merge::InputFilenames.size() < 2) {
1017      errs() << "merge subcommand requires at least 2 input files.\n";
1018      exit(1);
1019    }
1020    mergePdbs();
1021  }
1022
1023  outs().flush();
1024  return 0;
1025}
1026