[llvm] r343951 - [PDB] Add the ability to lookup global symbols by name.
Zachary Turner via llvm-commits
llvm-commits at lists.llvm.org
Sun Oct 7 21:19:16 PDT 2018
Author: zturner
Date: Sun Oct 7 21:19:16 2018
New Revision: 343951
URL: http://llvm.org/viewvc/llvm-project?rev=343951&view=rev
Log:
[PDB] Add the ability to lookup global symbols by name.
The Globals table is a hash table keyed on symbol name, so
it's possible to lookup symbols by name in O(1) time. Add
a function to the globals stream to do this, and add an option
to llvm-pdbutil to exercise this, then use it to write some
tests to verify correctness.
Added:
llvm/trunk/test/DebugInfo/PDB/pdbdump-global-lookup.test
Modified:
llvm/trunk/include/llvm/DebugInfo/CodeView/SymbolRecord.h
llvm/trunk/include/llvm/DebugInfo/PDB/Native/DbiStream.h
llvm/trunk/include/llvm/DebugInfo/PDB/Native/GlobalsStream.h
llvm/trunk/include/llvm/DebugInfo/PDB/Native/ModuleDebugStream.h
llvm/trunk/lib/DebugInfo/CodeView/SymbolDumper.cpp
llvm/trunk/lib/DebugInfo/PDB/Native/DbiStream.cpp
llvm/trunk/lib/DebugInfo/PDB/Native/GlobalsStream.cpp
llvm/trunk/lib/DebugInfo/PDB/Native/ModuleDebugStream.cpp
llvm/trunk/tools/llvm-pdbutil/DumpOutputStyle.cpp
llvm/trunk/tools/llvm-pdbutil/llvm-pdbutil.cpp
llvm/trunk/tools/llvm-pdbutil/llvm-pdbutil.h
Modified: llvm/trunk/include/llvm/DebugInfo/CodeView/SymbolRecord.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DebugInfo/CodeView/SymbolRecord.h?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/include/llvm/DebugInfo/CodeView/SymbolRecord.h (original)
+++ llvm/trunk/include/llvm/DebugInfo/CodeView/SymbolRecord.h Sun Oct 7 21:19:16 2018
@@ -358,6 +358,7 @@ public:
// S_PUB32
class PublicSym32 : public SymbolRecord {
public:
+ PublicSym32() : SymbolRecord(SymbolRecordKind::PublicSym32) {}
explicit PublicSym32(SymbolRecordKind Kind) : SymbolRecord(Kind) {}
explicit PublicSym32(uint32_t RecordOffset)
: SymbolRecord(SymbolRecordKind::PublicSym32),
@@ -636,6 +637,7 @@ public:
// S_OBJNAME
class ObjNameSym : public SymbolRecord {
public:
+ explicit ObjNameSym() : SymbolRecord(SymbolRecordKind::ObjNameSym) {}
explicit ObjNameSym(SymbolRecordKind Kind) : SymbolRecord(Kind) {}
ObjNameSym(uint32_t RecordOffset)
: SymbolRecord(SymbolRecordKind::ObjNameSym), RecordOffset(RecordOffset) {
@@ -718,6 +720,7 @@ public:
// S_COMPILE3
class Compile3Sym : public SymbolRecord {
public:
+ Compile3Sym() : SymbolRecord(SymbolRecordKind::Compile3Sym) {}
explicit Compile3Sym(SymbolRecordKind Kind) : SymbolRecord(Kind) {}
Compile3Sym(uint32_t RecordOffset)
: SymbolRecord(SymbolRecordKind::Compile3Sym),
@@ -739,8 +742,17 @@ public:
Flags = CompileSym3Flags((uint32_t(Flags) & 0xFFFFFF00) | uint32_t(Lang));
}
- uint8_t getLanguage() const { return static_cast<uint32_t>(Flags) & 0xFF; }
- uint32_t getFlags() const { return static_cast<uint32_t>(Flags) & ~0xFF; }
+ SourceLanguage getLanguage() const {
+ return static_cast<SourceLanguage>(static_cast<uint32_t>(Flags) & 0xFF);
+ }
+ CompileSym3Flags getFlags() const {
+ return static_cast<CompileSym3Flags>(static_cast<uint32_t>(Flags) & ~0xFF);
+ }
+
+ bool hasOptimizations() const {
+ return CompileSym3Flags::None !=
+ (getFlags() & (CompileSym3Flags::PGO | CompileSym3Flags::LTCG));
+ }
uint32_t RecordOffset;
};
Modified: llvm/trunk/include/llvm/DebugInfo/PDB/Native/DbiStream.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DebugInfo/PDB/Native/DbiStream.h?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/include/llvm/DebugInfo/PDB/Native/DbiStream.h (original)
+++ llvm/trunk/include/llvm/DebugInfo/PDB/Native/DbiStream.h Sun Oct 7 21:19:16 2018
@@ -78,7 +78,7 @@ public:
const DbiModuleList &modules() const;
- FixedStreamArray<object::coff_section> getSectionHeaders();
+ FixedStreamArray<object::coff_section> getSectionHeaders() const;
FixedStreamArray<object::FpoData> getFpoRecords();
Modified: llvm/trunk/include/llvm/DebugInfo/PDB/Native/GlobalsStream.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DebugInfo/PDB/Native/GlobalsStream.h?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/include/llvm/DebugInfo/PDB/Native/GlobalsStream.h (original)
+++ llvm/trunk/include/llvm/DebugInfo/PDB/Native/GlobalsStream.h Sun Oct 7 21:19:16 2018
@@ -10,18 +10,20 @@
#ifndef LLVM_DEBUGINFO_PDB_RAW_GLOBALS_STREAM_H
#define LLVM_DEBUGINFO_PDB_RAW_GLOBALS_STREAM_H
+#include "llvm/ADT/iterator.h"
+#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
#include "llvm/DebugInfo/MSF/MappedBlockStream.h"
#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
#include "llvm/DebugInfo/PDB/PDBTypes.h"
#include "llvm/Support/BinaryStreamArray.h"
#include "llvm/Support/Error.h"
-#include "llvm/ADT/iterator.h"
namespace llvm {
namespace pdb {
class DbiStream;
class PDBFile;
+class SymbolStream;
/// Iterator over hash records producing symbol record offsets. Abstracts away
/// the fact that symbol record offsets on disk are off-by-one.
@@ -50,8 +52,9 @@ class GSIHashTable {
public:
const GSIHashHeader *HashHdr;
FixedStreamArray<PSHashRecord> HashRecords;
- ArrayRef<uint8_t> HashBitmap;
+ ArrayRef<uint32_t> HashBitmap;
FixedStreamArray<support::ulittle32_t> HashBuckets;
+ std::array<int32_t, IPHR_HASH + 1> BucketMap;
Error read(BinaryStreamReader &Reader);
@@ -72,6 +75,9 @@ public:
const GSIHashTable &getGlobalsTable() const { return GlobalsTable; }
Error reload();
+ std::vector<std::pair<uint32_t, codeview::CVSymbol>>
+ findRecordsByName(StringRef Name, const SymbolStream &Symbols) const;
+
private:
GSIHashTable GlobalsTable;
std::unique_ptr<msf::MappedBlockStream> Stream;
Modified: llvm/trunk/include/llvm/DebugInfo/PDB/Native/ModuleDebugStream.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DebugInfo/PDB/Native/ModuleDebugStream.h?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/include/llvm/DebugInfo/PDB/Native/ModuleDebugStream.h (original)
+++ llvm/trunk/include/llvm/DebugInfo/PDB/Native/ModuleDebugStream.h Sun Oct 7 21:19:16 2018
@@ -15,6 +15,7 @@
#include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
#include "llvm/DebugInfo/MSF/MappedBlockStream.h"
+#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
#include "llvm/Support/BinaryStreamRef.h"
#include "llvm/Support/Error.h"
#include <cstdint>
@@ -51,6 +52,8 @@ public:
ModuleDebugStreamRef &operator=(ModuleDebugStreamRef &&Other) = delete;
+ codeview::CVSymbol readSymbolAtOffset(uint32_t Offset) const;
+
iterator_range<DebugSubsectionIterator> subsections() const;
codeview::DebugSubsectionArray getSubsectionsArray() const {
return Subsections;
@@ -64,7 +67,7 @@ public:
findChecksumsSubsection() const;
private:
- const DbiModuleDescriptor &Mod;
+ DbiModuleDescriptor Mod;
uint32_t Signature;
Modified: llvm/trunk/lib/DebugInfo/CodeView/SymbolDumper.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/CodeView/SymbolDumper.cpp?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/lib/DebugInfo/CodeView/SymbolDumper.cpp (original)
+++ llvm/trunk/lib/DebugInfo/CodeView/SymbolDumper.cpp Sun Oct 7 21:19:16 2018
@@ -262,7 +262,8 @@ Error CVSymbolDumperImpl::visitKnownReco
Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
Compile3Sym &Compile3) {
W.printEnum("Language", Compile3.getLanguage(), getSourceLanguageNames());
- W.printFlags("Flags", Compile3.getFlags(), getCompileSym3FlagNames());
+ W.printFlags("Flags", uint32_t(Compile3.getFlags()),
+ getCompileSym3FlagNames());
W.printEnum("Machine", unsigned(Compile3.Machine), getCPUTypeNames());
CompilationCPUType = Compile3.Machine;
std::string FrontendVersion;
Modified: llvm/trunk/lib/DebugInfo/PDB/Native/DbiStream.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/PDB/Native/DbiStream.cpp?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/lib/DebugInfo/PDB/Native/DbiStream.cpp (original)
+++ llvm/trunk/lib/DebugInfo/PDB/Native/DbiStream.cpp Sun Oct 7 21:19:16 2018
@@ -197,7 +197,7 @@ PDB_Machine DbiStream::getMachineType()
return static_cast<PDB_Machine>(Machine);
}
-FixedStreamArray<object::coff_section> DbiStream::getSectionHeaders() {
+FixedStreamArray<object::coff_section> DbiStream::getSectionHeaders() const {
return SectionHeaders;
}
Modified: llvm/trunk/lib/DebugInfo/PDB/Native/GlobalsStream.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/PDB/Native/GlobalsStream.cpp?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/lib/DebugInfo/PDB/Native/GlobalsStream.cpp (original)
+++ llvm/trunk/lib/DebugInfo/PDB/Native/GlobalsStream.cpp Sun Oct 7 21:19:16 2018
@@ -20,7 +20,11 @@
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/PDB/Native/GlobalsStream.h"
+
+#include "llvm/DebugInfo/CodeView/RecordName.h"
+#include "llvm/DebugInfo/PDB/Native/Hash.h"
#include "llvm/DebugInfo/PDB/Native/RawError.h"
+#include "llvm/DebugInfo/PDB/Native/SymbolStream.h"
#include "llvm/Support/BinaryStreamReader.h"
#include "llvm/Support/Error.h"
#include <algorithm>
@@ -41,6 +45,35 @@ Error GlobalsStream::reload() {
return Error::success();
}
+std::vector<std::pair<uint32_t, codeview::CVSymbol>>
+GlobalsStream::findRecordsByName(StringRef Name,
+ const SymbolStream &Symbols) const {
+ std::vector<std::pair<uint32_t, codeview::CVSymbol>> Result;
+
+ // Hash the name to figure out which bucket this goes into.
+ size_t ExpandedBucketIndex = hashStringV1(Name) % IPHR_HASH;
+ uint32_t CompressedBucketIndex = GlobalsTable.BucketMap[ExpandedBucketIndex];
+ if (CompressedBucketIndex == -1)
+ return Result;
+
+ uint32_t ChainStartOffset = GlobalsTable.HashBuckets[CompressedBucketIndex];
+ uint32_t NextChainStart = GlobalsTable.HashBuckets.size();
+ if (CompressedBucketIndex + 1 < GlobalsTable.HashBuckets.size())
+ NextChainStart = GlobalsTable.HashBuckets[CompressedBucketIndex + 1];
+ ChainStartOffset /= 12;
+ NextChainStart /= 12;
+
+ while (ChainStartOffset < NextChainStart) {
+ PSHashRecord PSH = GlobalsTable.HashRecords[ChainStartOffset];
+ uint32_t Off = PSH.Off - 1;
+ codeview::CVSymbol Record = Symbols.readRecord(Off);
+ if (codeview::getSymbolName(Record) == Name)
+ Result.push_back(std::make_pair(Off, std::move(Record)));
+ ++ChainStartOffset;
+ }
+ return Result;
+}
+
static Error checkHashHdrVersion(const GSIHashHeader *HashHdr) {
if (HashHdr->VerHdr != GSIHashHeader::HdrVersion)
return make_error<RawError>(
@@ -86,7 +119,8 @@ static Error readGSIHashRecords(FixedStr
static Error
readGSIHashBuckets(FixedStreamArray<support::ulittle32_t> &HashBuckets,
- ArrayRef<uint8_t> &HashBitmap, const GSIHashHeader *HashHdr,
+ ArrayRef<uint32_t> &HashBitmap, const GSIHashHeader *HashHdr,
+ MutableArrayRef<int32_t> BucketMap,
BinaryStreamReader &Reader) {
if (auto EC = checkHashHdrVersion(HashHdr))
return EC;
@@ -94,13 +128,27 @@ readGSIHashBuckets(FixedStreamArray<supp
// Before the actual hash buckets, there is a bitmap of length determined by
// IPHR_HASH.
size_t BitmapSizeInBits = alignTo(IPHR_HASH + 1, 32);
- uint32_t NumBitmapEntries = BitmapSizeInBits / 8;
- if (auto EC = Reader.readBytes(HashBitmap, NumBitmapEntries))
+ uint32_t NumBitmapEntries = BitmapSizeInBits / 32;
+ if (auto EC = Reader.readArray(HashBitmap, NumBitmapEntries))
return joinErrors(std::move(EC),
make_error<RawError>(raw_error_code::corrupt_file,
"Could not read a bitmap."));
+ uint32_t NumBuckets1 = 0;
+ uint32_t CompressedBucketIdx = 0;
+ for (uint32_t I = 0; I <= IPHR_HASH; ++I) {
+ uint8_t WordIdx = I / 32;
+ uint8_t BitIdx = I % 32;
+ bool IsSet = HashBitmap[WordIdx] & (1U << BitIdx);
+ if (IsSet) {
+ ++NumBuckets1;
+ BucketMap[I] = CompressedBucketIdx++;
+ } else {
+ BucketMap[I] = -1;
+ }
+ }
+
uint32_t NumBuckets = 0;
- for (uint8_t B : HashBitmap)
+ for (uint32_t B : HashBitmap)
NumBuckets += countPopulation(B);
// Hash buckets follow.
@@ -118,7 +166,8 @@ Error GSIHashTable::read(BinaryStreamRea
if (auto EC = readGSIHashRecords(HashRecords, HashHdr, Reader))
return EC;
if (HashHdr->HrSize > 0)
- if (auto EC = readGSIHashBuckets(HashBuckets, HashBitmap, HashHdr, Reader))
+ if (auto EC = readGSIHashBuckets(HashBuckets, HashBitmap, HashHdr,
+ BucketMap, Reader))
return EC;
return Error::success();
}
Modified: llvm/trunk/lib/DebugInfo/PDB/Native/ModuleDebugStream.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/PDB/Native/ModuleDebugStream.cpp?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/lib/DebugInfo/PDB/Native/ModuleDebugStream.cpp (original)
+++ llvm/trunk/lib/DebugInfo/PDB/Native/ModuleDebugStream.cpp Sun Oct 7 21:19:16 2018
@@ -97,6 +97,14 @@ ModuleDebugStreamRef::symbols(bool *HadE
return make_range(SymbolArray.begin(HadError), SymbolArray.end());
}
+CVSymbol ModuleDebugStreamRef::readSymbolAtOffset(uint32_t Offset) const {
+ // Offsets include the size of the 4-byte magic at the beginning, but lookup
+ // doesn't take that into account, so subtract it here.
+ auto Iter = SymbolArray.at(Offset - 4);
+ assert(Iter != SymbolArray.end());
+ return *Iter;
+}
+
iterator_range<ModuleDebugStreamRef::DebugSubsectionIterator>
ModuleDebugStreamRef::subsections() const {
return make_range(Subsections.begin(), Subsections.end());
Added: llvm/trunk/test/DebugInfo/PDB/pdbdump-global-lookup.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/PDB/pdbdump-global-lookup.test?rev=343951&view=auto
==============================================================================
--- llvm/trunk/test/DebugInfo/PDB/pdbdump-global-lookup.test (added)
+++ llvm/trunk/test/DebugInfo/PDB/pdbdump-global-lookup.test Sun Oct 7 21:19:16 2018
@@ -0,0 +1,22 @@
+; RUN: llvm-pdbutil dump -globals \
+; RUN: -global-name="operator delete" \
+; RUN: -global-name=main \
+; RUN: -global-name=abcdefg \
+; RUN: -global-name="Base2::`vbase destructor'" \
+; RUN: %p/Inputs/every-function.pdb | FileCheck %s
+
+CHECK: Global Symbols
+CHECK-NEXT: ============================================================
+CHECK-NEXT: Global Name `operator delete`
+CHECK-NEXT: 1516 | S_PROCREF [size = 32] `operator delete`
+CHECK-NEXT: module = 1, sum name = 0, offset = 324
+CHECK-NEXT: 1484 | S_PROCREF [size = 32] `operator delete`
+CHECK-NEXT: module = 1, sum name = 0, offset = 184
+CHECK-NEXT: Global Name `main`
+CHECK-NEXT: 2016 | S_PROCREF [size = 20] `main`
+CHECK-NEXT: module = 1, sum name = 0, offset = 1952
+CHECK-NEXT: Global Name `abcdefg`
+CHECK-NEXT: (no matching records found)
+CHECK-NEXT: Global Name `Base2::`vbase destructor'`
+CHECK-NEXT: 2288 | S_PROCREF [size = 40] `Base2::`vbase destructor'`
+CHECK-NEXT: module = 1, sum name = 0, offset = 2852
Modified: llvm/trunk/tools/llvm-pdbutil/DumpOutputStyle.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-pdbutil/DumpOutputStyle.cpp?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-pdbutil/DumpOutputStyle.cpp (original)
+++ llvm/trunk/tools/llvm-pdbutil/DumpOutputStyle.cpp Sun Oct 7 21:19:16 2018
@@ -1572,8 +1572,40 @@ Error DumpOutputStyle::dumpGlobals() {
ExitOnError Err("Error dumping globals stream: ");
auto &Globals = Err(getPdb().getPDBGlobalsStream());
- const GSIHashTable &Table = Globals.getGlobalsTable();
- Err(dumpSymbolsFromGSI(Table, opts::dump::DumpGlobalExtras));
+ if (opts::dump::DumpGlobalNames.empty()) {
+ const GSIHashTable &Table = Globals.getGlobalsTable();
+ Err(dumpSymbolsFromGSI(Table, opts::dump::DumpGlobalExtras));
+ } else {
+ SymbolStream &SymRecords = cantFail(getPdb().getPDBSymbolStream());
+ auto &Types = File.types();
+ auto &Ids = File.ids();
+
+ SymbolVisitorCallbackPipeline Pipeline;
+ SymbolDeserializer Deserializer(nullptr, CodeViewContainer::Pdb);
+ MinimalSymbolDumper Dumper(P, opts::dump::DumpSymRecordBytes, Ids, Types);
+
+ Pipeline.addCallbackToPipeline(Deserializer);
+ Pipeline.addCallbackToPipeline(Dumper);
+ CVSymbolVisitor Visitor(Pipeline);
+
+ using ResultEntryType = std::pair<uint32_t, CVSymbol>;
+ for (StringRef Name : opts::dump::DumpGlobalNames) {
+ AutoIndent Indent(P);
+ P.formatLine("Global Name `{0}`", Name);
+ std::vector<ResultEntryType> Results =
+ Globals.findRecordsByName(Name, SymRecords);
+ if (Results.empty()) {
+ AutoIndent Indent(P);
+ P.printLine("(no matching records found)");
+ continue;
+ }
+
+ for (ResultEntryType Result : Results) {
+ if (auto E = Visitor.visitSymbolRecord(Result.second, Result.first))
+ return E;
+ }
+ }
+ }
return Error::success();
}
@@ -1676,7 +1708,10 @@ Error DumpOutputStyle::dumpSymbolsFromGS
// Return early if we aren't dumping public hash table and address map info.
if (HashExtras) {
- P.formatBinary("Hash Bitmap", Table.HashBitmap, 0);
+ ArrayRef<uint8_t> BitmapBytes(
+ reinterpret_cast<const uint8_t *>(Table.HashBitmap.data()),
+ Table.HashBitmap.size() * sizeof(uint32_t));
+ P.formatBinary("Hash Bitmap", BitmapBytes, 0);
P.formatLine("Hash Entries");
{
Modified: llvm/trunk/tools/llvm-pdbutil/llvm-pdbutil.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-pdbutil/llvm-pdbutil.cpp?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-pdbutil/llvm-pdbutil.cpp (original)
+++ llvm/trunk/tools/llvm-pdbutil/llvm-pdbutil.cpp Sun Oct 7 21:19:16 2018
@@ -526,6 +526,11 @@ cl::opt<bool> DumpGlobals("globals", cl:
cl::cat(SymbolOptions), cl::sub(DumpSubcommand));
cl::opt<bool> DumpGlobalExtras("global-extras", cl::desc("dump Globals hashes"),
cl::cat(SymbolOptions), cl::sub(DumpSubcommand));
+cl::list<std::string> DumpGlobalNames(
+ "global-name",
+ cl::desc(
+ "With -globals, only dump globals whose name matches the given value"),
+ cl::cat(SymbolOptions), cl::sub(DumpSubcommand), cl::ZeroOrMore);
cl::opt<bool> DumpPublics("publics", cl::desc("dump Publics stream data"),
cl::cat(SymbolOptions), cl::sub(DumpSubcommand));
cl::opt<bool> DumpPublicExtras("public-extras",
Modified: llvm/trunk/tools/llvm-pdbutil/llvm-pdbutil.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-pdbutil/llvm-pdbutil.h?rev=343951&r1=343950&r2=343951&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-pdbutil/llvm-pdbutil.h (original)
+++ llvm/trunk/tools/llvm-pdbutil/llvm-pdbutil.h Sun Oct 7 21:19:16 2018
@@ -169,6 +169,7 @@ extern llvm::cl::opt<bool> DumpSymbols;
extern llvm::cl::opt<bool> DumpSymRecordBytes;
extern llvm::cl::opt<bool> DumpGSIRecords;
extern llvm::cl::opt<bool> DumpGlobals;
+extern llvm::cl::list<std::string> DumpGlobalNames;
extern llvm::cl::opt<bool> DumpGlobalExtras;
extern llvm::cl::opt<bool> DumpPublics;
extern llvm::cl::opt<bool> DumpPublicExtras;
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