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-rw-r--r--llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp40
1 files changed, 19 insertions, 21 deletions
diff --git a/llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp b/llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp
index 46717f23a63..99e5037ad63 100644
--- a/llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp
+++ b/llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp
@@ -84,44 +84,39 @@ template <typename T> static uint32_t getTpiHash(T &Rec) {
}
namespace {
-class TpiHashVerifier : public TypeVisitorCallbacks {
+class TpiHashVerifier : public CVTypeVisitor<TpiHashVerifier> {
public:
TpiHashVerifier(FixedStreamArray<support::ulittle32_t> &HashValues,
uint32_t NumHashBuckets)
: HashValues(HashValues), NumHashBuckets(NumHashBuckets) {}
- Error visitUdtSourceLine(UdtSourceLineRecord &Rec) override {
- return verifySourceLine(Rec);
- }
+ void visitUdtSourceLine(UdtSourceLineRecord &Rec) { verifySourceLine(Rec); }
- Error visitUdtModSourceLine(UdtModSourceLineRecord &Rec) override {
- return verifySourceLine(Rec);
+ void visitUdtModSourceLine(UdtModSourceLineRecord &Rec) {
+ verifySourceLine(Rec);
}
- Error visitClass(ClassRecord &Rec) override { return verify(Rec); }
- Error visitEnum(EnumRecord &Rec) override { return verify(Rec); }
- Error visitUnion(UnionRecord &Rec) override { return verify(Rec); }
+ void visitClass(ClassRecord &Rec) { verify(Rec); }
+ void visitEnum(EnumRecord &Rec) { verify(Rec); }
+ void visitInterface(ClassRecord &Rec) { verify(Rec); }
+ void visitStruct(ClassRecord &Rec) { verify(Rec); }
+ void visitUnion(UnionRecord &Rec) { verify(Rec); }
- Error visitTypeEnd(const CVRecord<TypeLeafKind> &Record) override {
- ++Index;
- return Error::success();
- }
+ void visitTypeEnd(const CVRecord<TypeLeafKind> &Record) { ++Index; }
private:
- template <typename T> Error verify(T &Rec) {
+ template <typename T> void verify(T &Rec) {
uint32_t Hash = getTpiHash(Rec);
if (Hash && Hash % NumHashBuckets != HashValues[Index])
- return make_error<RawError>(raw_error_code::invalid_tpi_hash);
- return Error::success();
+ parseError();
}
- template <typename T> Error verifySourceLine(T &Rec) {
+ template <typename T> void verifySourceLine(T &Rec) {
char Buf[4];
support::endian::write32le(Buf, Rec.getUDT().getIndex());
uint32_t Hash = hashStringV1(StringRef(Buf, 4));
if (Hash % NumHashBuckets != HashValues[Index])
- return make_error<RawError>(raw_error_code::invalid_tpi_hash);
- return Error::success();
+ parseError();
}
FixedStreamArray<support::ulittle32_t> HashValues;
@@ -134,8 +129,11 @@ private:
// Currently we only verify SRC_LINE records.
Error TpiStream::verifyHashValues() {
TpiHashVerifier Verifier(HashValues, Header->NumHashBuckets);
- CVTypeVisitor Visitor(Verifier);
- return Visitor.visitTypeStream(TypeRecords);
+ Verifier.visitTypeStream(TypeRecords);
+ if (Verifier.hadError())
+ return make_error<RawError>(raw_error_code::corrupt_file,
+ "Corrupt TPI hash table.");
+ return Error::success();
}
Error TpiStream::reload() {
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