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llvm-mirror/tools/llvm-pdbutil/Diff.cpp
Zachary Turner 6d6f70e2d9 Fix emission of PDB string table. 
This was originally reported as a bug with the symptom being "cvdump
crashes when printing an LLD-linked PDB that has an S_FILESTATIC record
in it". After some additional investigation, I determined that this was
a symptom of a larger problem, and in fact the real problem was in the
way we emitted the global PDB string table. As evidence of this, you can
take any lld-generated PDB, run cvdump -stringtable on it, and it would
return no results.

My hypothesis was that cvdump could not *find* the string table to begin
with. Normally it would do this by looking in the "named stream map",
finding the string /names, and using its value as the stream index. If
this lookup fails, then cvdump would fail to load the string table.

To test this hypothesis, I looked at the name stream map generated by a
link.exe PDB, and I emitted exactly those bytes into an LLD-generated
PDB. Suddenly, cvdump could read our string table!

This code has always been hacky and we knew there was something we
didn't understand. After all, there were some comments to the effect of
"we have to emit strings in a specific order, otherwise things don't
work". The key to fixing this was finally understanding this.

The way it works is that it makes use of a generic serializable hash map
that maps integers to other integers. In this case, the "key" is the
offset into a buffer, and the value is the stream number. If you index
into the buffer at the offset specified by a given key, you find the
name. The underlying cause of all these problems is that we were using
the identity function for the hash. i.e. if a string's offset in the
buffer was 12, the hash value was 12. Instead, we need to hash the
string *at that offset*. There is an additional catch, in that we have
to compute the hash as a uint32 and then truncate it to uint16.

Making this work is a little bit annoying, because we use the same hash
table in other places as well, and normally just using the identity
function for the hash function is actually what's desired. I'm not
totally happy with the template goo I came up with, but it works in any
case.

The reason we never found this bug through our own testing is because we
were building a /parallel/ hash table (in the form of an
llvm::StringMap<>) and doing all of our lookups and "real" hash table
work against that. I deleted all of that code and now everything goes
through the real hash table. Then, to test it, I added a unit test which
adds 7 strings and queries the associated values. I test every possible
insertion order permutation of these 7 strings, to verify that it really
does work as expected.

Differential Revision: https://reviews.llvm.org/D43326

llvm-svn: 325386
2018-02-16 20:46:04 +00:00

645 lines
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//===- Diff.cpp - PDB diff utility ------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Diff.h"
#include "DiffPrinter.h"
#include "FormatUtil.h"
#include "StreamUtil.h"
#include "llvm-pdbutil.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/DebugInfo/PDB/Native/DbiStream.h"
#include "llvm/DebugInfo/PDB/Native/Formatters.h"
#include "llvm/DebugInfo/PDB/Native/InfoStream.h"
#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
#include "llvm/DebugInfo/PDB/Native/PDBStringTable.h"
#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
#include "llvm/Support/FormatAdapters.h"
#include "llvm/Support/FormatProviders.h"
#include "llvm/Support/FormatVariadic.h"
#include "llvm/Support/Path.h"
using namespace llvm;
using namespace llvm::pdb;
namespace {
// Compare and format two stream numbers. Stream numbers are considered
// identical if they contain the same value, equivalent if they are both
// the invalid stream or neither is the invalid stream, and different if
// one is the invalid stream and another isn't.
struct StreamNumberProvider {
static DiffResult compare(uint16_t L, uint16_t R) {
if (L == R)
return DiffResult::IDENTICAL;
bool LP = L != kInvalidStreamIndex;
bool RP = R != kInvalidStreamIndex;
if (LP != RP)
return DiffResult::DIFFERENT;
return DiffResult::EQUIVALENT;
}
static std::string format(uint16_t SN, bool Right) {
if (SN == kInvalidStreamIndex)
return "(not present)";
return formatv("{0}", SN).str();
}
};
// Compares and formats two module indices. Modis are considered identical
// if they are identical, equivalent if they either both contain a value or
// both don't contain a value, and different if one contains a value and the
// other doesn't.
struct ModiProvider {
DiffResult compare(Optional<uint32_t> L, Optional<uint32_t> R) {
if (L == R)
return DiffResult::IDENTICAL;
if (L.hasValue() != R.hasValue())
return DiffResult::DIFFERENT;
return DiffResult::EQUIVALENT;
}
std::string format(Optional<uint32_t> Modi, bool Right) {
if (!Modi.hasValue())
return "(not present)";
return formatv("{0}", *Modi).str();
}
};
// Compares and formats two paths embedded in the PDB, ignoring the beginning
// of the path if the user specified it as a "root path" on the command line.
struct BinaryPathProvider {
explicit BinaryPathProvider(uint32_t MaxLen) : MaxLen(MaxLen) {}
DiffResult compare(StringRef L, StringRef R) {
if (L == R)
return DiffResult::IDENTICAL;
SmallString<64> LN = removeRoot(L, false);
SmallString<64> RN = removeRoot(R, true);
return (LN.equals_lower(RN)) ? DiffResult::EQUIVALENT
: DiffResult::DIFFERENT;
}
std::string format(StringRef S, bool Right) {
if (S.empty())
return "(empty)";
SmallString<64> Native = removeRoot(S, Right);
return truncateStringFront(Native.str(), MaxLen);
}
SmallString<64> removeRoot(StringRef Path, bool IsRight) const {
SmallString<64> Native(Path);
auto &RootOpt = IsRight ? opts::diff::RightRoot : opts::diff::LeftRoot;
SmallString<64> Root(static_cast<std::string>(RootOpt));
// pdb paths always use windows syntax, convert slashes to backslashes.
sys::path::native(Root, sys::path::Style::windows);
if (sys::path::has_stem(Root, sys::path::Style::windows))
sys::path::append(Root, sys::path::Style::windows,
sys::path::get_separator(sys::path::Style::windows));
sys::path::replace_path_prefix(Native, Root, "", sys::path::Style::windows);
return Native;
}
uint32_t MaxLen;
};
// Compare and format two stream purposes. For general streams, this just
// compares the description. For module streams it uses the path comparison
// algorithm taking into consideration the binary root, described above.
// Formatting stream purposes just prints the stream purpose, except for
// module streams and named streams, where it prefixes the name / module
// with an identifier. Example:
//
// Named Stream "\names"
// Module Stream "foo.obj"
//
// If a named stream is too long to fit in a column, it is truncated at the
// end, and if a module is too long to fit in a column, it is truncated at the
// beginning. Example:
//
// Named Stream "\Really Long Str..."
// Module Stream "...puts\foo.obj"
//
struct StreamPurposeProvider {
explicit StreamPurposeProvider(uint32_t MaxLen) : MaxLen(MaxLen) {}
DiffResult compare(const StreamInfo &L, const StreamInfo &R) {
if (L.getPurpose() != R.getPurpose())
return DiffResult::DIFFERENT;
if (L.getPurpose() == StreamPurpose::ModuleStream) {
BinaryPathProvider PathProvider(MaxLen);
return PathProvider.compare(L.getShortName(), R.getShortName());
}
return (L.getShortName() == R.getShortName()) ? DiffResult::IDENTICAL
: DiffResult::DIFFERENT;
}
std::string format(const StreamInfo &P, bool Right) {
if (P.getPurpose() == StreamPurpose::Other ||
P.getPurpose() == StreamPurpose::Symbols)
return truncateStringBack(P.getShortName(), MaxLen);
if (P.getPurpose() == StreamPurpose::NamedStream)
return truncateQuotedNameBack("Named Stream", P.getShortName(), MaxLen);
assert(P.getPurpose() == StreamPurpose::ModuleStream);
uint32_t ExtraChars = strlen("Module \"\"");
BinaryPathProvider PathProvider(MaxLen - ExtraChars);
std::string Result = PathProvider.format(P.getShortName(), Right);
return formatv("Module \"{0}\"", Result);
}
uint32_t MaxLen;
};
} // namespace
namespace llvm {
template <> struct format_provider<PdbRaw_FeatureSig> {
static void format(const PdbRaw_FeatureSig &Sig, raw_ostream &Stream,
StringRef Style) {
switch (Sig) {
case PdbRaw_FeatureSig::MinimalDebugInfo:
Stream << "MinimalDebugInfo";
break;
case PdbRaw_FeatureSig::NoTypeMerge:
Stream << "NoTypeMerge";
break;
case PdbRaw_FeatureSig::VC110:
Stream << "VC110";
break;
case PdbRaw_FeatureSig::VC140:
Stream << "VC140";
break;
}
}
};
}
template <typename R> using ValueOfRange = llvm::detail::ValueOfRange<R>;
DiffStyle::DiffStyle(PDBFile &File1, PDBFile &File2)
: File1(File1), File2(File2) {}
Error DiffStyle::dump() {
if (auto EC = diffSuperBlock())
return EC;
if (auto EC = diffFreePageMap())
return EC;
if (auto EC = diffStreamDirectory())
return EC;
if (auto EC = diffStringTable())
return EC;
if (auto EC = diffInfoStream())
return EC;
if (auto EC = diffDbiStream())
return EC;
if (auto EC = diffSectionContribs())
return EC;
if (auto EC = diffSectionMap())
return EC;
if (auto EC = diffFpoStream())
return EC;
if (auto EC = diffTpiStream(StreamTPI))
return EC;
if (auto EC = diffTpiStream(StreamIPI))
return EC;
if (auto EC = diffPublics())
return EC;
if (auto EC = diffGlobals())
return EC;
return Error::success();
}
Error DiffStyle::diffSuperBlock() {
DiffPrinter D(2, "MSF Super Block", 16, 20, opts::diff::PrintResultColumn,
opts::diff::PrintValueColumns, outs());
D.printExplicit("File", DiffResult::UNSPECIFIED,
truncateStringFront(File1.getFilePath(), 18),
truncateStringFront(File2.getFilePath(), 18));
D.print("Block Size", File1.getBlockSize(), File2.getBlockSize());
D.print("Block Count", File1.getBlockCount(), File2.getBlockCount());
D.print("Unknown 1", File1.getUnknown1(), File2.getUnknown1());
D.print("Directory Size", File1.getNumDirectoryBytes(),
File2.getNumDirectoryBytes());
return Error::success();
}
Error DiffStyle::diffStreamDirectory() {
DiffPrinter D(2, "Stream Directory", 30, 20, opts::diff::PrintResultColumn,
opts::diff::PrintValueColumns, outs());
D.printExplicit("File", DiffResult::UNSPECIFIED,
truncateStringFront(File1.getFilePath(), 18),
truncateStringFront(File2.getFilePath(), 18));
SmallVector<StreamInfo, 32> P;
SmallVector<StreamInfo, 32> Q;
discoverStreamPurposes(File1, P);
discoverStreamPurposes(File2, Q);
D.print("Stream Count", File1.getNumStreams(), File2.getNumStreams());
auto PI = to_vector<32>(enumerate(P));
auto QI = to_vector<32>(enumerate(Q));
// Scan all streams in the left hand side, looking for ones that are also
// in the right. Each time we find one, remove it. When we're done, Q
// should contain all the streams that are in the right but not in the left.
StreamPurposeProvider StreamProvider(28);
for (const auto &P : PI) {
typedef decltype(PI) ContainerType;
typedef typename ContainerType::value_type value_type;
auto Iter = llvm::find_if(QI, [P, &StreamProvider](const value_type &V) {
DiffResult Result = StreamProvider.compare(P.value(), V.value());
return Result == DiffResult::EQUIVALENT ||
Result == DiffResult::IDENTICAL;
});
if (Iter == QI.end()) {
D.printExplicit(StreamProvider.format(P.value(), false),
DiffResult::DIFFERENT, P.index(), "(not present)");
continue;
}
D.print<EquivalentDiffProvider>(StreamProvider.format(P.value(), false),
P.index(), Iter->index());
QI.erase(Iter);
}
for (const auto &Q : QI) {
D.printExplicit(StreamProvider.format(Q.value(), true),
DiffResult::DIFFERENT, "(not present)", Q.index());
}
return Error::success();
}
Error DiffStyle::diffStringTable() {
DiffPrinter D(2, "String Table", 30, 20, opts::diff::PrintResultColumn,
opts::diff::PrintValueColumns, outs());
D.printExplicit("File", DiffResult::UNSPECIFIED,
truncateStringFront(File1.getFilePath(), 18),
truncateStringFront(File2.getFilePath(), 18));
auto ExpectedST1 = File1.getStringTable();
auto ExpectedST2 = File2.getStringTable();
bool Has1 = !!ExpectedST1;
bool Has2 = !!ExpectedST2;
std::string Count1 = Has1 ? llvm::utostr(ExpectedST1->getNameCount())
: "(string table not present)";
std::string Count2 = Has2 ? llvm::utostr(ExpectedST2->getNameCount())
: "(string table not present)";
D.print("Number of Strings", Count1, Count2);
if (!Has1 || !Has2) {
consumeError(ExpectedST1.takeError());
consumeError(ExpectedST2.takeError());
return Error::success();
}
auto &ST1 = *ExpectedST1;
auto &ST2 = *ExpectedST2;
D.print("Hash Version", ST1.getHashVersion(), ST2.getHashVersion());
D.print("Byte Size", ST1.getByteSize(), ST2.getByteSize());
D.print("Signature", ST1.getSignature(), ST2.getSignature());
// Both have a valid string table, dive in and compare individual strings.
auto IdList1 = ST1.name_ids();
auto IdList2 = ST2.name_ids();
StringSet<> LS;
StringSet<> RS;
uint32_t Empty1 = 0;
uint32_t Empty2 = 0;
for (auto ID : IdList1) {
auto S = ST1.getStringForID(ID);
if (!S)
return S.takeError();
if (S->empty())
++Empty1;
else
LS.insert(*S);
}
for (auto ID : IdList2) {
auto S = ST2.getStringForID(ID);
if (!S)
return S.takeError();
if (S->empty())
++Empty2;
else
RS.insert(*S);
}
D.print("Empty Strings", Empty1, Empty2);
for (const auto &S : LS) {
auto R = RS.find(S.getKey());
std::string Truncated = truncateStringMiddle(S.getKey(), 28);
uint32_t I = cantFail(ST1.getIDForString(S.getKey()));
if (R == RS.end()) {
D.printExplicit(Truncated, DiffResult::DIFFERENT, I, "(not present)");
continue;
}
uint32_t J = cantFail(ST2.getIDForString(R->getKey()));
D.print<EquivalentDiffProvider>(Truncated, I, J);
RS.erase(R);
}
for (const auto &S : RS) {
auto L = LS.find(S.getKey());
std::string Truncated = truncateStringMiddle(S.getKey(), 28);
uint32_t J = cantFail(ST2.getIDForString(S.getKey()));
if (L == LS.end()) {
D.printExplicit(Truncated, DiffResult::DIFFERENT, "(not present)", J);
continue;
}
uint32_t I = cantFail(ST1.getIDForString(L->getKey()));
D.print<EquivalentDiffProvider>(Truncated, I, J);
}
return Error::success();
}
Error DiffStyle::diffFreePageMap() { return Error::success(); }
Error DiffStyle::diffInfoStream() {
DiffPrinter D(2, "PDB Stream", 22, 40, opts::diff::PrintResultColumn,
opts::diff::PrintValueColumns, outs());
D.printExplicit("File", DiffResult::UNSPECIFIED,
truncateStringFront(File1.getFilePath(), 38),
truncateStringFront(File2.getFilePath(), 38));
auto ExpectedInfo1 = File1.getPDBInfoStream();
auto ExpectedInfo2 = File2.getPDBInfoStream();
bool Has1 = !!ExpectedInfo1;
bool Has2 = !!ExpectedInfo2;
if (!(Has1 && Has2)) {
std::string L = Has1 ? "(present)" : "(not present)";
std::string R = Has2 ? "(present)" : "(not present)";
D.print("Stream", L, R);
consumeError(ExpectedInfo1.takeError());
consumeError(ExpectedInfo2.takeError());
return Error::success();
}
auto &IS1 = *ExpectedInfo1;
auto &IS2 = *ExpectedInfo2;
D.print("Stream Size", IS1.getStreamSize(), IS2.getStreamSize());
D.print("Age", IS1.getAge(), IS2.getAge());
D.print("Guid", IS1.getGuid(), IS2.getGuid());
D.print("Signature", IS1.getSignature(), IS2.getSignature());
D.print("Version", IS1.getVersion(), IS2.getVersion());
D.diffUnorderedArray("Feature", IS1.getFeatureSignatures(),
IS2.getFeatureSignatures());
D.print("Named Stream Size", IS1.getNamedStreamMapByteSize(),
IS2.getNamedStreamMapByteSize());
StringMap<uint32_t> NSL = IS1.getNamedStreams().entries();
StringMap<uint32_t> NSR = IS2.getNamedStreams().entries();
D.diffUnorderedMap<EquivalentDiffProvider>("Named Stream", NSL, NSR);
return Error::success();
}
typedef std::pair<uint32_t, DbiModuleDescriptor> IndexedModuleDescriptor;
typedef std::vector<IndexedModuleDescriptor> IndexedModuleDescriptorList;
static IndexedModuleDescriptorList
getModuleDescriptors(const DbiModuleList &ML) {
IndexedModuleDescriptorList List;
List.reserve(ML.getModuleCount());
for (uint32_t I = 0; I < ML.getModuleCount(); ++I)
List.emplace_back(I, ML.getModuleDescriptor(I));
return List;
}
static IndexedModuleDescriptorList::iterator
findOverrideEquivalentModule(uint32_t Modi,
IndexedModuleDescriptorList &OtherList) {
auto &EqMap = opts::diff::Equivalences;
auto Iter = EqMap.find(Modi);
if (Iter == EqMap.end())
return OtherList.end();
uint32_t EqValue = Iter->second;
return llvm::find_if(OtherList,
[EqValue](const IndexedModuleDescriptor &Desc) {
return Desc.first == EqValue;
});
}
static IndexedModuleDescriptorList::iterator
findEquivalentModule(const IndexedModuleDescriptor &Item,
IndexedModuleDescriptorList &OtherList, bool ItemIsRight) {
if (!ItemIsRight) {
uint32_t Modi = Item.first;
auto OverrideIter = findOverrideEquivalentModule(Modi, OtherList);
if (OverrideIter != OtherList.end())
return OverrideIter;
}
BinaryPathProvider PathProvider(28);
auto Iter = OtherList.begin();
auto End = OtherList.end();
for (; Iter != End; ++Iter) {
const IndexedModuleDescriptor *Left = &Item;
const IndexedModuleDescriptor *Right = &*Iter;
if (ItemIsRight)
std::swap(Left, Right);
DiffResult Result = PathProvider.compare(Left->second.getModuleName(),
Right->second.getModuleName());
if (Result == DiffResult::EQUIVALENT || Result == DiffResult::IDENTICAL)
return Iter;
}
return OtherList.end();
}
static void diffOneModule(DiffPrinter &D, const IndexedModuleDescriptor &Item,
IndexedModuleDescriptorList &Other,
bool ItemIsRight) {
StreamPurposeProvider HeaderProvider(70);
StreamInfo Info = StreamInfo::createModuleStream(
Item.second.getModuleName(), Item.second.getModuleStreamIndex(),
Item.first);
D.printFullRow(HeaderProvider.format(Info, ItemIsRight));
const auto *L = &Item;
auto Iter = findEquivalentModule(Item, Other, ItemIsRight);
if (Iter == Other.end()) {
// We didn't find this module at all on the other side. Just print one row
// and continue.
if (ItemIsRight)
D.print<ModiProvider>("- Modi", None, Item.first);
else
D.print<ModiProvider>("- Modi", Item.first, None);
return;
}
// We did find this module. Go through and compare each field.
const auto *R = &*Iter;
if (ItemIsRight)
std::swap(L, R);
BinaryPathProvider PathProvider(28);
D.print<ModiProvider>("- Modi", L->first, R->first);
D.print<BinaryPathProvider>("- Obj File Name", L->second.getObjFileName(),
R->second.getObjFileName(), PathProvider);
D.print<StreamNumberProvider>("- Debug Stream",
L->second.getModuleStreamIndex(),
R->second.getModuleStreamIndex());
D.print("- C11 Byte Size", L->second.getC11LineInfoByteSize(),
R->second.getC11LineInfoByteSize());
D.print("- C13 Byte Size", L->second.getC13LineInfoByteSize(),
R->second.getC13LineInfoByteSize());
D.print("- # of files", L->second.getNumberOfFiles(),
R->second.getNumberOfFiles());
D.print("- Pdb File Path Index", L->second.getPdbFilePathNameIndex(),
R->second.getPdbFilePathNameIndex());
D.print("- Source File Name Index", L->second.getSourceFileNameIndex(),
R->second.getSourceFileNameIndex());
D.print("- Symbol Byte Size", L->second.getSymbolDebugInfoByteSize(),
R->second.getSymbolDebugInfoByteSize());
Other.erase(Iter);
}
Error DiffStyle::diffDbiStream() {
DiffPrinter D(2, "DBI Stream", 40, 30, opts::diff::PrintResultColumn,
opts::diff::PrintValueColumns, outs());
D.printExplicit("File", DiffResult::UNSPECIFIED,
truncateStringFront(File1.getFilePath(), 28),
truncateStringFront(File2.getFilePath(), 28));
auto ExpectedDbi1 = File1.getPDBDbiStream();
auto ExpectedDbi2 = File2.getPDBDbiStream();
bool Has1 = !!ExpectedDbi1;
bool Has2 = !!ExpectedDbi2;
if (!(Has1 && Has2)) {
std::string L = Has1 ? "(present)" : "(not present)";
std::string R = Has2 ? "(present)" : "(not present)";
D.print("Stream", L, R);
consumeError(ExpectedDbi1.takeError());
consumeError(ExpectedDbi2.takeError());
return Error::success();
}
auto &DL = *ExpectedDbi1;
auto &DR = *ExpectedDbi2;
D.print("Dbi Version", (uint32_t)DL.getDbiVersion(),
(uint32_t)DR.getDbiVersion());
D.print("Age", DL.getAge(), DR.getAge());
D.print("Machine", (uint16_t)DL.getMachineType(),
(uint16_t)DR.getMachineType());
D.print("Flags", DL.getFlags(), DR.getFlags());
D.print("Build Major", DL.getBuildMajorVersion(), DR.getBuildMajorVersion());
D.print("Build Minor", DL.getBuildMinorVersion(), DR.getBuildMinorVersion());
D.print("Build Number", DL.getBuildNumber(), DR.getBuildNumber());
D.print("PDB DLL Version", DL.getPdbDllVersion(), DR.getPdbDllVersion());
D.print("PDB DLL RBLD", DL.getPdbDllRbld(), DR.getPdbDllRbld());
D.print<StreamNumberProvider>("DBG (FPO)",
DL.getDebugStreamIndex(DbgHeaderType::FPO),
DR.getDebugStreamIndex(DbgHeaderType::FPO));
D.print<StreamNumberProvider>(
"DBG (Exception)", DL.getDebugStreamIndex(DbgHeaderType::Exception),
DR.getDebugStreamIndex(DbgHeaderType::Exception));
D.print<StreamNumberProvider>("DBG (Fixup)",
DL.getDebugStreamIndex(DbgHeaderType::Fixup),
DR.getDebugStreamIndex(DbgHeaderType::Fixup));
D.print<StreamNumberProvider>(
"DBG (OmapToSrc)", DL.getDebugStreamIndex(DbgHeaderType::OmapToSrc),
DR.getDebugStreamIndex(DbgHeaderType::OmapToSrc));
D.print<StreamNumberProvider>(
"DBG (OmapFromSrc)", DL.getDebugStreamIndex(DbgHeaderType::OmapFromSrc),
DR.getDebugStreamIndex(DbgHeaderType::OmapFromSrc));
D.print<StreamNumberProvider>(
"DBG (SectionHdr)", DL.getDebugStreamIndex(DbgHeaderType::SectionHdr),
DR.getDebugStreamIndex(DbgHeaderType::SectionHdr));
D.print<StreamNumberProvider>(
"DBG (TokenRidMap)", DL.getDebugStreamIndex(DbgHeaderType::TokenRidMap),
DR.getDebugStreamIndex(DbgHeaderType::TokenRidMap));
D.print<StreamNumberProvider>("DBG (Xdata)",
DL.getDebugStreamIndex(DbgHeaderType::Xdata),
DR.getDebugStreamIndex(DbgHeaderType::Xdata));
D.print<StreamNumberProvider>("DBG (Pdata)",
DL.getDebugStreamIndex(DbgHeaderType::Pdata),
DR.getDebugStreamIndex(DbgHeaderType::Pdata));
D.print<StreamNumberProvider>("DBG (NewFPO)",
DL.getDebugStreamIndex(DbgHeaderType::NewFPO),
DR.getDebugStreamIndex(DbgHeaderType::NewFPO));
D.print<StreamNumberProvider>(
"DBG (SectionHdrOrig)",
DL.getDebugStreamIndex(DbgHeaderType::SectionHdrOrig),
DR.getDebugStreamIndex(DbgHeaderType::SectionHdrOrig));
D.print<StreamNumberProvider>("Globals Stream",
DL.getGlobalSymbolStreamIndex(),
DR.getGlobalSymbolStreamIndex());
D.print<StreamNumberProvider>("Publics Stream",
DL.getPublicSymbolStreamIndex(),
DR.getPublicSymbolStreamIndex());
D.print<StreamNumberProvider>("Symbol Records", DL.getSymRecordStreamIndex(),
DR.getSymRecordStreamIndex());
D.print("Has CTypes", DL.hasCTypes(), DR.hasCTypes());
D.print("Is Incrementally Linked", DL.isIncrementallyLinked(),
DR.isIncrementallyLinked());
D.print("Is Stripped", DL.isStripped(), DR.isStripped());
const DbiModuleList &ML = DL.modules();
const DbiModuleList &MR = DR.modules();
D.print("Module Count", ML.getModuleCount(), MR.getModuleCount());
D.print("Source File Count", ML.getSourceFileCount(),
MR.getSourceFileCount());
auto MDL = getModuleDescriptors(ML);
auto MDR = getModuleDescriptors(MR);
// Scan all module descriptors from the left, and look for corresponding
// module descriptors on the right.
for (const auto &L : MDL)
diffOneModule(D, L, MDR, false);
for (const auto &R : MDR)
diffOneModule(D, R, MDL, true);
return Error::success();
}
Error DiffStyle::diffSectionContribs() { return Error::success(); }
Error DiffStyle::diffSectionMap() { return Error::success(); }
Error DiffStyle::diffFpoStream() { return Error::success(); }
Error DiffStyle::diffTpiStream(int Index) { return Error::success(); }
Error DiffStyle::diffModuleInfoStream(int Index) { return Error::success(); }
Error DiffStyle::diffPublics() { return Error::success(); }
Error DiffStyle::diffGlobals() { return Error::success(); }
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